highaltitude.log.20130906

[00:02] <enkidu> PE2G: circle is just an approximation
[00:05] <PE2G> Ok. I never really checked it against dl-fldigi's elevation reading
[00:06] <PE2G> B-11 is at -0.2 deg according to dl-fldigi now
[00:06] <enkidu> I was able to receive VHF up to 470MHz being covered by three hills
[00:06] <enkidu> while over 470MHz reception is miracle
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[00:11] <PE2G> VHF to 470 was possible due to special conditions?
[00:11] <JDat> hello
[00:11] <JDat> please add zinoo2 to active flight list
[00:12] <enkidu> it is very well scattering on fog and other things, that make UHF reception impossible
[00:25] <PE2G> I'll get some sleep now, it's 2:25 AM here. GN
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[00:55] <enkidu> http://ready.arl.noaa.gov/hypubout/13389_trj001.gif
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[01:59] <crash_18974> is B-11 running into rain? Or 'weather'? I can't pull up the weather map.
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[02:05] <enkidu> http://www.radareu.cz/
[02:06] <x-f> morning
[02:06] <x-f> you never sleep?
[02:06] <enkidu> sleep is for weak
[02:06] <enkidu> coffee ftw
[02:07] <x-f> heh
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[02:09] <enkidu> comparing to previous day of flight, last 24h are boring
[02:10] <enkidu> like french-germany war front: many involved, no terrain gained
[02:10] <crash_18974> this track from a while ago is why I asked about weather: http://i.imgur.com/F59bBJj.jpg (sorry for bad quality)
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[02:12] <enkidu> ah, prediction. I will look on weather maps
[02:16] <enkidu> there is some wind shear, but I think that balloon wont get at 850mbar level
[02:16] <crash_18974> the movement by Hainstadt and the burst by Obernburg caught my eye. But I am still learning.
[02:25] <enkidu> there is little convection nearby but I dont think it will have influence
[03:10] <enkidu> should be in range of berlin
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[04:00] Action: x-f off to catch a plane.
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[05:09] <enkidu> what is with tracker? shows incorrect time offset?
[05:09] <tweetBot> @PD3EM: High Altitude Balloon B-11 is flying over Europe for 4.5 days now: http://t.co/7wDftLWw48 #UKHAS http://t.co/sjUWZAtVEe
[05:11] <det__> gm all, nice decode in Wolfsburg now :-)
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[05:18] <enkidu> if you can decode then attach to habitat
[05:21] <fsphil> sheesh, it's still up
[05:24] <enkidu> http://ready.arl.noaa.gov/hypubout/12923_trj001.gif someone is joking
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[05:41] <jcoxon> morning al
[05:41] <jcoxon> l
[05:41] <jcoxon> shall we clear the tracker of non B-11 flights?
[05:44] <enkidu> use filtering
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[05:46] <jcoxon> enkidu, hehe its more that there are quite a few unnecessary balloons on their
[05:47] <jcoxon> just checking people are happy before i remove them
[05:47] <enkidu> some of theem seems to be wire testing ones
[05:48] <jcoxon> cleared a few
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[05:50] <enkidu> actually zinoo2 was going to be released today, but nvm
[05:51] <enkidu> there is strange behavior on map tracker: when I pan it, coverage circles are misaligned
[05:51] <jcoxon> enkidu, thats not a bad thing, to clear before launch
[05:52] <jcoxon> makes the altitude graph cleaner
[05:52] <jcoxon> the data was from yesterday
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[05:52] <jcoxon> good luck to B11
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[05:53] <enkidu> he asked for adding it 6 hours ago? B11 will probably head into airmass taking it south
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[05:54] <eroomde> i think the high alt predictions were slowly taking it towards poland
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[05:55] <enkidu> it was, but 300hpa win prediction is to take it south
[05:56] <enkidu> http://ready.arl.noaa.gov/hypubout/12923_trj001.gif
[05:57] <eroomde> ah intteresting
[05:57] <eroomde> The Grand Tour
[05:57] Nick change: zsentinel -> jackass121212121
[05:57] Nick change: jackass121212121 -> zsentinel
[05:57] <enkidu> but lower air masses are blowing to north, so everything can happen
[05:59] <enkidu> still, its litle above mentioned 300hPa level
[06:00] Nick change: zsentinel -> dsdassadasdasasa
[06:00] Nick change: dsdassadasdasasa -> zsentinel
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[06:21] <SP3OSJ> #habhub
[06:21] <eroomde> close
[06:23] <daveake> !cigar
[06:23] <eroomde> interesting
[06:23] <eroomde> http://diydrones.com/profiles/blogs/sony-releases-stand-alone-imager
[06:23] <eroomde> i've also wanted something a bit like this for a while
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[06:25] <eroomde> and tried to make one out of a powershot a few years ago - messier results but broadly the same outcome
[06:25] <eroomde> http://www.cusf.co.uk/images/stripped_down_cam.jpg
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[06:29] <enkidu> so far noaa prediction is failing
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[06:57] <PE2G> Goodmorning
[07:00] <enkidu> hello
[07:00] <PE2G> Morning enkidu, haven't you slept at all??
[07:00] <enkidu> sleep is for weak :P
[07:01] <enkidu> also I overdosed caffeine
[07:01] <PE2G> :-)
[07:01] <wrea> lol
[07:01] <PE2G> I went to bed at about 1:30 UTZ and left rx and pc running
[07:01] <PE2G> 1:30 UTC
[07:02] <PE2G> All went well
[07:02] <PE2G> B-11 had drifted somewhat
[07:02] <PE2G> But still green decodes. Nice.
[07:04] <PE2G> I expected that B-12 would disappear into my blind spot
[07:04] <Upu> good effort PE2G
[07:04] <PE2G> Thanks
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[07:05] <PE2G> B-11's speed even lower now than it was?
[07:06] <PE2G> At around 00 UTC it was 11 km/h
[07:06] <enkidu> gfs model claims it will head south
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[07:06] <Upu> might be a false altitude
[07:06] <PE2G> Surprising
[07:06] <enkidu> it should report pressure not altitude
[07:07] <PE2G> Or both
[07:07] <enkidu> altitude is calculated using gps or pressure sensor?
[07:08] <Upu> GPS
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[07:11] <PE2G> I have some intereference now, but still green decodes
[07:11] <PE2G> http://s23.postimg.org/r6j89e8cr/Screen1066.jpg
[07:11] <wb8elk> Can someone activate a party balloon flight I'll be doing tomorrow evening from Huntsville Alabama: Flight Doc: 1c3e62fb9b78b9a310cf6f2d198feb70
[07:12] <PE2G> *interference
[07:12] <wb8elk> Anthony....still planning on having streaming video from the conference?
[07:13] <Upu> Indeed Bill
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[07:13] <Upu> Welcome to #highaltitude - UKHAS 2013 Live Stream http://www.batc.tv/streams/ukhas - www.ukhas.org.uk
[07:13] <Upu> approved
[07:13] <wb8elk> I'll tune in then...look forward to watching it. Wish I could attend but ran out of vacation time at work.
[07:14] <Upu> no problems
[07:14] <Upu> 10am BST
[07:14] <Upu> it will be recorded if you don't want to get up that early
[07:14] <wb8elk> If any of the folks watching via BATC has a question for the speakers...will someone be monitoring here or the BATC video chat window?
[07:14] <Upu> good question
[07:14] <Upu> will answer that tomorrow
[07:15] <wb8elk> yes...that will be very early for me to watch the beginning of the conference.
[07:15] <daveake> That can be the first question in the chat window then :p
[07:16] <wb8elk> gotta head off to bed now....look forward to watching the conference via BATC
[07:22] <Maxell> Did you guys tried the Berlin WebSDR? http://radio-swl.no-ip.org:8901/
[07:22] <Maxell> It might be able to pick up B-11!
[07:23] <SP3OSJ> as I have come to: irc.freenode.net
[07:24] <enkidu> hello :)
[07:25] <enkidu> actually berlin websdr has too high frequency range
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[07:30] <LeoBodnar> morning
[07:31] <enkidu> hello Leo
[07:31] <PE2G> Morning Leo
[07:31] <daveake> greetings Leo
[07:31] <LeoBodnar> :)
[07:32] <enkidu> I wonder, when military forces will shot it down
[07:32] <WD8MNV> will we seea flock of tracking cars today?
[07:32] <LeoBodnar> what time does the conference start?
[07:33] <PE2G> I can't find the NW wind in the windgram
[07:34] <PE2G> http://s7.postimg.org/lov4znlxn/Screen1067.jpg
[07:34] <PE2G> How can you get this? http://ready.arl.noaa.gov/hypubout/12923_trj001.gif
[07:34] <enkidu> maybe we should look at radiosoundings
[07:35] <enkidu> dont ask me, I just used GFS data from midnight
[07:36] <PE2G> The windgram also uses 00 UTC GFS data...
[07:37] <enkidu> http://weather.uwyo.edu/cgi-bin/sounding?region=europe&TYPE=GIF%3ASKEWT&YEAR=2013&MONTH=09&FROM=0600&TO=0600&STNM=10548
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[07:40] <enkidu> when it reach Greifswald region, there will be NW wind for sure
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[07:42] <PE2G> Yes, Greifswald 00Z sounding showing NW winds
[07:42] <LeoBodnar> I have tried yesterday PE2G and didn't get it either. Is it because it was for previous day's morning?
[07:42] <enkidu> yes, for some reason (i dont know when) I changed day
[07:42] <PE2G> http://weather.uwyo.edu/cgi-bin/sounding?region=europe&TYPE=GIF%3ASTUVE10&YEAR=2013&MONTH=09&FROM=0600&TO=0600&STNM=10184
[07:42] <enkidu> http://ready.arl.noaa.gov/hypubout/18530_trj001.gif
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[07:43] <PE2G> LeoBodnar: Possibly
[07:45] <enkidu> LeoBodnar: does yor device have pressure sensor?
[07:48] Nick change: KipK_away -> KipK
[07:51] <LeoBodnar> No enkidu this one does not
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[07:53] <HixWork> LeoBodnar seen this? http://www.bbc.co.uk/news/business-23936775
[07:53] <HixWork> Ironically it mentions a cargo ship company called B9 :D
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[07:55] <Lunar_LanderU> hello
[07:55] <enkidu> hello Lunar_LanderU, u can tune in ;)
[07:55] <Lunar_LanderU> before you ask, radio is up and running in case it gets in range
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[07:55] <Lunar_LanderU> do you have a dial frequency for me?
[07:56] <Lunar_LanderU> currently on 434.500.4
[07:56] <Lunar_LanderU> no signal
[07:58] <Lunar_LanderU> nothing on 434.500.9 either
[07:58] <PE2G> B-11's speed was 24 km/h in the past 2 hours
[07:58] <Lunar_LanderU> hi PE2G
[07:58] <Lunar_LanderU> what's your frequency?
[07:59] <PE2G> Hi Lunar, I have it on 434.5015 , modem 1058 Hz
[07:59] <enkidu> Lunar_LanderU: are u using http://www.radiomuseum.org/r/yupiteru_multiband_receiver_mvt_71.html this with its own antenna?
[07:59] <Lunar_LanderU> yes
[08:00] <enkidu> 434500kHz USB?
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[08:03] <Lunar_LanderU> yea
[08:03] <PE2G> Jijdaar is als decoding from the roof of the Met Office building in De Bilt , NL
[08:03] <Lunar_LanderU> nothing on that and on cool
[08:03] <Lunar_LanderU> sorry xD
[08:04] <enkidu> Id have to put antenna on roof too
[08:08] <Maxell> PE2G: so he is in horizon?
[08:10] <Maxell> lol is he using some kind of work antenna like PA3WEG does?
[08:11] <PE2G> I don't know exactly how high the building is.
[08:11] <PE2G> He's not using a fancy antenna
[08:13] <PE2G> AFAIK, KNMI doesn't have any directional antennas on the roof
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[08:15] <PE2G> I found this view from the Met Office roof:
[08:15] <PE2G> http://s9.postimg.org/6k5to6on3/Screen1068.jpg
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[08:19] <PE2G> Hey, I see two Bees on the waterfall!
[08:20] <enkidu> PE2G: ?
[08:20] <enkidu> try to demodulate
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[08:20] <PE2G> B-012 is back!
[08:21] <PE2G> B-12
[08:21] <enkidu> it did nearly same way, it will be in backlog
[08:21] <Geoff-G8DHE-M> Brilliant!!
[08:21] <PE2G> http://s11.postimg.org/6sxqypmwj/Screen1069.jpg
[08:21] <enkidu> LeoBodnar
[08:22] <enkidu> you dirty bastard
[08:22] <Geoff-G8DHE-M> Its done a reset!
[08:22] <PE2G> $$B-12,5,081753,50.549,5.8848,9287,8,0,3.67,0.62*a8e4
[08:22] <Geoff-G8DHE-M> Now when will we hear the log ?
[08:22] <PE2G> $$B-12,6,082024,50.5884,5.8966,9361,9,0,3.7,0.6*5717
[08:22] <LeoBodnar> No F* WAY?!
[08:22] <LeoBodnar> Haha!
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[08:22] <enkidu> probably noone tracked it
[08:22] <Upu> wtf
[08:23] <Upu> seriously
[08:23] <Upu> lol
[08:23] <Upu> haha
[08:23] <PE2G> I thought B-11 had a freq jump, then I heard two beeps at the same time
[08:23] <enkidu> it had made a way oser (map points:) trieste, zadar, pescara, ajaccio, porpigan, limoges
[08:23] <enkidu> over*
[08:23] <Geoff-G8DHE-M> LeoBodnar, Didn't you say it kept the sequence numbers correct even after reset ?
[08:23] <WD8MNV> wait... what??
[08:24] <Upu> Yep
[08:24] <Upu> B-12 appeared
[08:24] <PE2G> Bothe on the waterfall:
[08:24] <PE2G> http://s16.postimg.org/p6yq2tks5/Screen1070.jpg
[08:24] <Upu> its rebooted
[08:24] <G0TDJ_Steve> Good Morning Guys - B-12 STILL GOING?
[08:24] <enkidu> a wild B-12 appeared
[08:25] <Geoff-G8DHE-M> but sequence numbers are very low 5 then 6 etc
[08:25] <LeoBodnar> Must have been really really true reset (complete power down)
[08:25] <enkidu> so it lost battery
[08:25] <Geoff-G8DHE-M> Ah OK not stored in Flash then ?
[08:26] <tweetBot> @AnthonyStirk: B-12 has reappeared and is over Belgium, B-11 still up ! #ukhas #hamr
[08:26] <LeoBodnar> No, RAM. BUt if reset is caused by e.g. code exception or voltage brownout it will keep the message seq number.
[08:28] <enkidu> small spi flash next time
[08:28] <Geoff-G8DHE-M> or send the full date
[08:29] <PE2G> Incredible
[08:29] <G0TDJ_Steve> What is the dial freq. in case it drifts this way?
[08:29] <LeoBodnar> Yeah, flash.
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[08:30] <LeoBodnar> Unfortunately I can't use onboard MCU flash because the voltage I am running at is below one required for flash writes. But I will do something.
[08:30] <LeoBodnar> Good learning curve.
[08:30] <enkidu> LeoBodnar: 1.8V?
[08:30] <LeoBodnar> 2.0V
[08:31] <PE2G> B-12 - 434.5013 MHz, cursor 818 Hz
[08:31] <LeoBodnar> I think it need 2.3 or 2.4 for flash writes
[08:31] <G0TDJ_Steve> Cheers PE2G
[08:31] <enkidu> sst25wf080
[08:31] <Upu> nice password ?
[08:31] <LeoBodnar> Everybody forget it now
[08:32] <enkidu> 8pin soic
[08:32] <Upu> oh a part :)
[08:32] <mattbrejza> lol soic
[08:32] <LeoBodnar> Oh yeah, external flash is 1.8v
[08:32] <LeoBodnar> soic is massive for my PCB
[08:32] <mattbrejza> bit big :-P
[08:32] <LeoBodnar> I'll figure it out.
[08:32] <enkidu> or 8pad xfbga
[08:34] Bo_DK (~kvirc@87-51-52-114-static.dk.customer.tdc.net) joined #highaltitude.
[08:35] <nats`> hi
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[08:36] <Maxell> bertrik: lol decoding already?
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[08:36] <Geoff-G8DHE> LeoBodnar, How about full date-time in LOG broadcasts but time only in normal records ?
[08:36] <bertrik> Maxell: yes, we get signal! :)
[08:37] <enkidu> Geoff-G8DHE: timestamp in unix format
[08:37] <eroomde> the DL got suffiiently good that people stopped putting sd cards on payloads
[08:37] <enkidu> and problem will be solved
[08:37] <eroomde> but we always did have sd cards, and i think an onboard log is a good thing
[08:37] <Maxell> bertrik: tuner has to warm up :P
[08:37] <Maxell> Or is B-12 drifting like a mad man?
[08:37] <enkidu> eroomde: for log internal spi flosh would be enough
[08:38] <nats`> B12 back on track ?!
[08:38] <Geoff-G8DHE> It should be in range for me but its very noisy on the channel today :-(
[08:38] <nats`> wtf :D you put polonium inside ?!
[08:38] <enkidu> assuming you want to store every hour position
[08:38] <Maxell> nats`: lol solar cells
[08:39] <DL7AD> hey saw that b-12 is alive :D
[08:39] <nats`> so the battery is dead and it's sending directly from solar cell ?
[08:39] <Maxell> Nope, Battery: 3.75 V
[08:39] <eroomde> enkidu, might get to be quite large over several days of flight!
[08:39] <eroomde> a few mb
[08:40] <nats`> any idea on why it stopped emitting before ?
[08:40] <nats`> (and anyway you now have two amateur balloon records if I'm not wrong)
[08:40] <enkidu> eroomde: 1MB flash would be enough for 1h log
[08:41] <nats`> only log once on 10 minutes ?
[08:42] <LeoBodnar> Lol, just this morning I thought it gets progressively more boring
[08:43] <Rebounder>
[08:43] <nats`> I find that more interesting than a doctor house episode :D
[08:43] <enkidu> if one for 10 minutes it will be... (calculating) 320 bytes per point
[08:44] <enkidu> so 8mbit flast will last 173 days
[08:44] <enkidu> without filesystem overhead
[08:44] <nats`> I think no FS is better
[08:44] <nats`> less energy on the uC
[08:45] <nats`> and if you can get back the balloon you only need to read a binary blob
[08:45] <enkidu> on flash id never use FS - just direct storage
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[08:46] <enkidu> one block will be lost to store "last used sector/offset"
[08:47] <Maxell> LeoBodnar: any toughts on what could have caused a 3 day outage?
[08:47] <enkidu> Maxell: battery down then noone in range
[08:47] <WD8MNV> aliens
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[08:47] <enkidu> assuming it passed over path trieste-zedar-prescara-roma-ajaccio etc
[08:48] <Maxell> enkidu: and suddenly 3.75 volts in the system?
[08:49] <Maxell> or did noon listen anymore?
[08:49] <enkidu> suddenly sun on battery
[08:49] <Maxell> suddenly alienz
[08:49] <enkidu> and noone listened, everyone was nearly sure its gone
[08:50] Piet0r (~Piet0r___@53530237.cm-6-4a.dynamic.ziggo.nl) joined #highaltitude.
[08:50] <Piet0r> I see the wanderer has returned to the herd
[08:50] <bertrik> actually, just now I was briefly mistaken thinking we were receiving B-11 :)
[08:50] <enkidu> ill make a path
[08:52] <Maxell> $$B-12,17,084915,51.0428,6.0455,9378,7,-3,3.79,0.62*1e95
[08:52] <Maxell> $$B-12,18,085146,51.0825,6.0583,9359,8,-3,3.79,0.62*b268
[08:53] <LeoBodnar> Maxell: it has a very dodgy LiPo - small and used. So I guess it cannot store enough charge to survive the night.
[08:53] <LeoBodnar> During the day it's charged but will lose charge very quickly overnight
[08:53] <Piet0r> @LeoBodnar Are B11 and B12 on LiPo?
[08:53] <Lunar_LanderU> hm strange
[08:54] <Lunar_LanderU> I think my dl-fldigi closed without me doing it
[08:54] <Maxell> at least two daytime cycles it did not got picked up. eastern europe needs to man up and starts recieving more HABs
[08:54] <Geoff-G8DHE> LeoBodnar, Need to extend the habitat times for B-12 otherwise it won't be logged ?
[08:54] <Lunar_LanderU> or I didn't pay attention
[08:54] <LeoBodnar> Ye Piet0r
[08:54] <Geoff-G8DHE> Ah I see Upu has already asked!
[08:55] <LeoBodnar> Yes Geoff-G8DHE , do you know how?
[08:55] <LeoBodnar> Ah, cool!
[08:55] <Lunar_LanderU> does it happen that dl-fldigi crashes without further notice?
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[08:55] <LeoBodnar> Prior notice maybe?
[08:55] <tweetBot> @stratodean: Looking forward to the UKHAS Conference in Greenwich tomorrow! #teamawayday #ukhas
[08:55] <Lunar_LanderU> hm
[08:55] <bertrik> Lunar_LanderU: I've had hangs with dl-fldigi
[08:55] <Lunar_LanderU> ah
[08:56] <LeoBodnar> Oh, yeah and B-12 has a lighter [=lightest] payload so it floats at higher altitudes = colder
[08:56] <eroomde> https://pbs.twimg.com/media/BFB7WBpCEAEfDe6.jpg:large
[08:56] <eroomde> yep.
[08:57] <enkidu> https://mapsengine.google.com/map/edit?mid=zK65dZIlnzTQ.kDqM492TKrog
[08:57] <Bo_DK> Upu + UpuWork thanks for the bits to denmark :-D
[08:57] <enkidu> it was probably this path
[08:58] Ugi (d4facd31@gateway/web/freenode/ip.212.250.205.49) joined #highaltitude.
[08:59] <Ugi> Wow - B11 still out there!
[08:59] <enkidu> but also it could make some circles above France
[08:59] <DL7AD> does b-11 send its log anytime?
[09:00] <Ugi> Hey - is that B-12 back on the map?
[09:00] <bertrik> yes :)
[09:00] <Ugi> amazing!
[09:00] <Ugi> wonder where it' s been
[09:01] <enkidu> Ugi: take a look at my map, it is prediction I wade using weteo diagrams
[09:01] <enkidu> meteo*
[09:02] <Ugi> enkidu: Will do - where do I find that? (if it was linked before I logged in I can't see it)
[09:02] <enkidu> https://mapsengine.google.com/map/edit?mid=zK65dZIlnzTQ.kDqM492TKrog
[09:02] <Ugi> fab - thanks
[09:02] <Lunar_LanderU> LeoBodnar: what is the min battery voltage that B-11 needs?
[09:02] <Lunar_LanderU> and do you have a photo of how it looks with the solar panel?
[09:03] <enkidu> I should make a tool for generating such diagrams using radiosoundings
[09:04] <Ugi> Lunar_LanderU: If you look here: http://leobodnar.com/balloons/
[09:04] <LeoBodnar> Lunar_LanderU: http://leobodnar.com/balloons/B-10/ http://leobodnar.com/balloons/B-12/ http://leobodnar.com/balloons/B-11/ they all look the same. B-11 and B-12 don't have radiation shield, just heatshrink tubing.
[09:05] <Ugi> there are pictures of nearly all of them
[09:05] <Ugi> LeoBodnar: congrat's getting your stray child back!
[09:05] <LeoBodnar> Haha naughty balloon came home in the morning after two days of absence
[09:06] <Lunar_LanderU> thanks
[09:06] <enkidu> LeoBodnar: compare my track with receivers map. Noone could track it
[09:06] <LeoBodnar> enkidu: could you please upload a PNG or GIF of it?
[09:07] <enkidu> this path I made on google?
[09:07] <LeoBodnar> yeah
[09:09] <LeoBodnar> I tell you what! I have been receiving strange 8 second beeps on Breda globaltuners receiver since last night. I thought it might have been B-12 but decided it wasn't. Because they were at 8 sec intervals.
[09:09] <LeoBodnar> I have CONVINCED myself it can't be B-12 :D
[09:09] <enkidu> http://lantv.ds.pg.gda.pl/path.png
[09:10] <bertrik> LeoBodnar: perhaps B-12 starting up, emitting a beep, then resetting again because of insufficient voltage?
[09:10] <enkidu> breda was too far away I think
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[09:11] <LeoBodnar> I need to check if this signal is still there. If it is then it wasn't B-12
[09:11] <enkidu> hysplit backwards suggest even longer journey
[09:11] <enkidu> http://ready.arl.noaa.gov/hypubout/11090_trj001.gif
[09:12] <DL7AD> can receive b-11
[09:12] <bertrik> BTW, dominoex16 seems to work excellent
[09:12] <enkidu> yellow path could be accurate too
[09:13] <LeoBodnar> Thanks enkidu . This makes a lot of sence
[09:14] <PE2G> Will B-12 still send its log at 10 UTC after the reset?
[09:16] <enkidu> LeoBodnar: I wouldnt say it was over Bay of Biscay, couse there was wind frow west
[09:17] <LeoBodnar> I think not PE2G
[09:17] <PE2G> It lost all previous data during its time-out?
[09:18] <LeoBodnar> My records from yesterday say: BREDA, 8 sec beeps, 434.502MHz, CW mode, 3kHz BW, beeps are at 1256Hz in dl-fldigi
[09:18] <LeoBodnar> Need to get back onto Bread radio to check but it's taken now
[09:19] <enkidu> LeoBodnar: I dont know, how hysplit works in backward mode, but it suggested bay of biscay also for B-11
[09:20] <enkidu> zinoo2 is ready to launch?
[09:20] <LeoBodnar> Seem to be a popular place
[09:23] <enkidu> two and half hour till next radiosounding session
[09:23] <enkidu> 403 MHZ
[09:24] <PE2G> enkidu: are you monitoring met sondes?
[09:24] <LeoBodnar> Just got onto Breda receiver. 8 sec beeps signal is still there. Is B-12 beeps at 3 sec now?
[09:25] <PE2G> Yes
[09:25] <LeoBodnar> OK, then it wasn't B-12 on Breda
[09:26] <tweetBot> @G8DHE: @stratodean Likewise, will be coming in from the South. Anyone else coming up by train ? #ukhas #hamar
[09:26] <PE2G> LeoBodnar: It sounded to me that B-12 sprang to life with data, not with beeps
[09:26] <enkidu> PE2G: it is easy, also, they are using raw GPS
[09:26] <eroomde> Geoff-G8DHE, I think there's a surrey contingent
[09:26] <enkidu> plus if one fall nearby you can keep it
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[09:27] <F5MVO> hello everybody
[09:27] <bertrik> enkidu: what kind of sondes do you follow? DFM-6?
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[09:28] <PE2G> enkidu: Yes I know, here's my site: http://home.deds.nl/~pe2g/
[09:29] <enkidu> bertrik: vaissala
[09:29] <F5MVO> B12 come back !
[09:30] <Piet0r> I think I can hear B12 on my porto :)
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[09:30] <Geoff-G8DHE> eroomde, Probably, I'll be on the South Coast to London Bridge line arriv 09:00 LB
[09:31] <PE2G> Piet0r: Congrats!
[09:31] <eroomde> which south coast is that?
[09:31] <enkidu> Ozone sonde coupled to RS92.
[09:31] <eroomde> horsham/crawley etc?
[09:31] <Geoff-G8DHE> Littlehampton - haywards Heath - London Bridge
[09:31] <enkidu> that was one of this well payed
[09:31] <mattbrejza> horsham-crawley goes into VC, i have to take that one later, sooo long
[09:32] <mattbrejza> but cheaper than the alternative and i can do stuff on the train
[09:32] <eroomde> mattbrejza, where are you?
[09:32] <mattbrejza> soton atm
[09:32] <mattbrejza> but going home (s. london)
[09:33] <LeoBodnar> PE2G: what does the paperwork say on the sonde photos?
[09:34] <PE2G> LeoBodnar: It depends on the station and the type of sonde
[09:35] <PE2G> They would like to receive the ozone sonde back
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[09:35] <PE2G> All other sondes are regarded as chemical waste. That's what it says on the notes basically
[09:36] <DL7AD> have much interference due to road works
[09:36] <Bo_DK> any BBB "experts in here?
[09:37] <enkidu> ozone sondes are well paid
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[09:37] <PE2G> enkidu: How much do you get for an ozone sonde?
[09:37] <mfa298> Bo_DK: as far as I'm aware there are only three BBB users on this channel and you're the only one that's around
[09:38] <Bo_DK> hehehe
[09:38] <eroomde> Bo_DK, a lot of these questions would be better answered on a channel that isn't all about ballooning
[09:38] <eroomde> for example
[09:38] <eroomde> the other day you asked if there were any BBB experts to help you with getting the ethernet working
[09:38] <Bo_DK> mfa298: got habrote working but not able to get NC to listen to it
[09:38] <enkidu> PE2G: never found one ;/ but they are paid well, more than two days of work for average worker
[09:39] <enkidu> here
[09:39] <eroomde> now i'm (while possibly mistaken of course) fairly confident that your problem is probably more a linux question rather than a BBB question
[09:39] <Bo_DK> eroomde: yes.... and no one is forced to answer
[09:39] <PE2G> enkidu: OK
[09:39] <eroomde> indeed, but the objective is surely to get stuff achieved
[09:39] <Bo_DK> eroomde: in #beagle they dont know either....
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[09:39] <eroomde> see above
[09:41] <Geoff-G8DHE> can you ping habhub.org Bo_DK from it ?
[09:41] <PE2G> It looks like B-12 will do a flypast here. It can't get any better than this.
[09:41] <mfa298> for things like netcat you might be better off with a general linux channel (or possibly even networking / sysadming stuff)
[09:43] <bertrik> PE2G: maybe you can see it with a scope
[09:44] <PE2G> I'll give it a try. I only have binoculars.
[09:44] <PE2G> I've never managed to discern overflying met-sondes though
[09:45] <mfa298> Spotting balloons is much easier to spot if you're in a position where it reflects the sun back to you
[09:46] <mfa298> doing that for an evening latex flight the balloon looked like a bright star
[09:46] <enkidu> many meteo balloons are latex ones, not really reflectong
[09:46] <mfa298> I'm not sure how well it would work with a foil balloon though
[09:47] <PE2G> A foil is so much smaller than a latex balloon
[09:47] <mfa298> enkidu: with the sun in the right location you can see a latex balloon. Looks like the photos are not avaible at the moment of what we saw and photocraphed
[09:47] <enkidu> but it is reflecting. it is aluminium foil
[09:47] <Laurenceb> oh wow B12 back
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[09:49] <mfa298> I think a foil is probably going to be a bit too small so see easily. Although with a decent lense you might spot it.
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[09:50] <Laurenceb> i see a slight downward drift on B11
[09:50] <Laurenceb> looks like some helium leakage
[09:50] <mfa298> In the photographs that were taken you could make out the payload with a 500mm lense on a digital camera (but it was a big payload)
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[09:53] <enkidu> last time I seen photographer with 500mm lense I was thinking it is russian cannon operator
[09:53] <Darkside> lol
[09:53] <Darkside> i have a cadiatropic 500mm lens
[09:53] <Darkside> but being cadiatropic, it's fixed aperture
[09:54] <SpeedEvil> Laurenceb: Noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo!
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[09:56] <SpeedEvil> Laurenceb: you mean very recently - doesn't look visible on the graph
[09:56] <SpeedEvil> Oh - there is a massive down-spike I see.
[09:56] <SpeedEvil> there have been these spikes before though - and they're bogus
[09:56] <Babs> ping Hixwork. Or Hix for that matter.
[09:56] <bertrik> is OZ1SKY ready to receive? looks like he will be the only one capable of receiving for a while as B-12 moves further north
[09:57] <Babs> PS Onto the key item for the conference agenda. I have the cakes.
[09:57] <fsphil> this is mad
[09:57] <fsphil> where did B-12 disappear to?
[09:58] <Laurenceb> SpeedEvil: plot the altitude over the last few days
[09:58] <Laurenceb> about 100m downward drift
[09:58] <Laurenceb> at that rate bouyancy is lost in about another weeks time
[09:58] <SpeedEvil> fsphil: as I understand it, the hypothesis is that the battery died, and it diddn't wake back up as it can't boot right with a flat bat
[09:59] <SpeedEvil> Laurenceb: have you looked at the isobars?
[09:59] <Laurenceb> nope
[09:59] <Laurenceb> yeah it could be that
[09:59] <SpeedEvil> Laurenceb: I mean - it's drigfitng in altitude yes - is it drifting in terms of pressure
[09:59] <Laurenceb> wow B-11 battery is getting to highest level yet
[09:59] <Laurenceb> yeah
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[10:03] <PE2G> There is a lot of jet traffic where B-12 is flying
[10:04] <Radio_Felix> Good Morning folks, B-11 heard n JO52co still adjusting equipment to get TLM Decodes
[10:04] <PE2G> B-12 Log:
[10:04] <PE2G> Log
[10:04] <PE2G> $$B-12,1,080746,50.39,5.8416,9319,8,-6,3.48,0.6*2de1
[10:04] <PE2G> $$B-12,45,100043,52.1956,6.4319,9357,6,1,3.93,0.63*2baf
[10:04] <HixWork> Geoff-G8DHE seen this? http://www.stumbleupon.com/su/1WyN6Z
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[10:05] <Laurenceb> LeoBodnar: isnt there eeprom on the pic for use for logging?
[10:05] Action: Radio_Felix rants about main antenna being unavailable when something interesting is going on
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[10:05] Nick change: Radio_Felix -> DL1SGP
[10:05] <bertrik> oh, sequence counter reset?
[10:05] <Babs> HixWork - Lomach Lee came through
[10:05] <Babs> good tip
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[10:09] <LeoBodnar> Laurenceb: EEPROM has write voltage requirements higher than what I am using
[10:09] <LeoBodnar> It might still work though
[10:10] <LeoBodnar> I think B-11 battery might be losing its capacity as it has charged very quickly today
[10:10] <Laurenceb> you need a stm32l1 on there
[10:10] <Laurenceb> runs at 1.8v and has eeprom
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[10:11] <enkidu> Laurenceb: eeprom size?
[10:11] <Laurenceb> 4KB
[10:12] <enkidu> I have found spi flash for 1.8V able to store 1MB (8Mbits)
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[10:12] <enkidu> half year storage space
[10:13] <Laurenceb> http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1295/LN962/PF248833
[10:14] <Geoff-G8DHE> B-12 I've put an estimated flight path up here http://360.g8dhe.net/hab_flights/B-12_20130902/index.php?ind=4 based on actual and <enkidu> Meto info
[10:14] <Geoff-G8DHE> GE kmz/l files available
[10:14] <Laurenceb> nice work
[10:15] <LeoBodnar> coolio
[10:15] <DL1SGP> tu geoff
[10:17] <LeoBodnar> Can I use wildcards or multiple entries in the "filter" argument as in http://spacenear.us/tracker/?filter=B-11 to select both B-12 and B-11
[10:17] <LeoBodnar> ?
[10:17] <navrac_work> how fast did you expect b11 to charge - it looks like when the sun came up it went from 3.75-4v in 4 and a half hours - is that fast?
[10:18] <Geoff-G8DHE> Multipile entries seperated by ;
[10:18] <navrac_work> ;
[10:18] <navrac_work> http://spacenear.us/tracker/?filter=B-11%3BB-12
[10:19] <Laurenceb> same downward drift on B-12 too
[10:19] <enkidu> Geoff-G8DHE: it is only my prediction plus some analyze over B-11 path, LeoBodnar predictions for last contact, hysplit reverse and soundings. Just average
[10:19] <Laurenceb> dont know if its just the weather tho
[10:19] <Laurenceb> about 10m/day
[10:19] <Maxell> OZ1SKY needs to tune for B-12!! :D
[10:20] <Laurenceb> so that'd suggest about 2 weeks flight time
[10:20] <enkidu> Laurenceb: it might be some Ice on device
[10:20] <Laurenceb> i doubt it
[10:20] <Laurenceb> i suspect helium diffusing out
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[10:21] <Geoff-G8DHE> enkidu, Yup no problem, the hy-split really didn't match either end of the actual tracks, yours looked better and appreciate only guestimate!
[10:21] <Laurenceb> there does seem to be capacity left in B-12
[10:21] <Babs> Laurenceb - a good assumption I think, but the difference in air pressure over a 10m range is far outweighed by the difference in air pressure caused by the weather from one day to the next
[10:22] <Babs> Once we get up to B20 we will have a good data set to test the theory
[10:22] <Laurenceb> heh
[10:22] <Babs> EDIT: Leobodnar needs a Model T esque production line
[10:22] <LeoBodnar> The weather just turned miserable in the UK and I assume the continent, does it agree with lower pressure hypothesis?
[10:23] <Babs> Get them launching as frequently as the rockets in Gattaca
[10:23] <eroomde> probably worth subbing a batch at once you get to quantities of about 25
[10:23] <eroomde> subbing a batch out*
[10:23] <enkidu> Babs: we can look at soundings and look for height of 300mbar isobar
[10:23] <Lunar_LanderU> just back from lunch
[10:23] <Lunar_LanderU> I can see the bips I think
[10:23] <HixWork> ping UpuWork
[10:23] <eroomde> i dream of the day we get an order of 25-50 for one of our products
[10:23] <Lunar_LanderU> but it does not decode
[10:23] <Lunar_LanderU> LeoBodnar: quick
[10:23] <DL1SGP> pressure is slightly falling here in northern germany (I am near Hannover) still nice weather though
[10:23] <Lunar_LanderU> what shall I do?=
[10:23] <LeoBodnar> I keep tweaking them but as soon as I am settled I'd just make a panel of 100 or so
[10:23] <Geoff-G8DHE> Have them populated in China and then they can fly back to the designer maybe ?
[10:23] <LeoBodnar> Some Upu is going to be very rich man
[10:24] <Lunar_LanderU> YES THERE IT IS
[10:24] <Lunar_LanderU> GREEN
[10:24] <Lunar_LanderU> LeoBodnar: THANKS :D
[10:24] <Babs> Mass launch of 10 identical ones would be awesome as a real demonstration of chaos theory
[10:24] <Laurenceb> i have another idea
[10:24] <eroomde> not to take away from upu but at quantities of 100 ublox's i'd talk to alpha micro directly :)
[10:24] <fsphil> very good Lunar_LanderU :)
[10:24] <HixWork> hey Babs was he able to help?
[10:24] <Laurenceb> H2 diffusion coefficient is several times lower in mylar
[10:24] <Lunar_LanderU> this is only the second balloon I was able to decode
[10:24] <Laurenceb> swap the He for H2
[10:24] <Lunar_LanderU> besides Apex Alpha
[10:24] <Lunar_LanderU> and excluding my own
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[10:25] <LeoBodnar> I am not convinced about H2 floaters with LiPos onboard
[10:25] <Laurenceb> it will fly higher too
[10:25] <PE2G> Congratulations Lunar.
[10:25] <Laurenceb> wut
[10:26] <DL1SGP> are the stations with a tower on the map auto reporting to the ground team or is there a site where potential decodes of TLM could be added?
[10:26] <Babs> Hey HixWork - yes, I sent him the sketchup and the stl and he said "It certainly seems easy enough" - i don't know whether that means he can convert the sketchup file or whether he will just go with STL (the stl is 512 polygons so for a component as small as that it shouldn't be too coarse). I asked him and he is coming back to me with a quote
[10:26] <Laurenceb> perfectly safe
[10:26] <Lunar_LanderU> thanks PE2G
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[10:26] <Lunar_LanderU> LeoBodnar: so what are the TX intervals?
[10:26] <Lunar_LanderU> when can I expect an transmission again?
[10:26] Nick change: ^ph -> ^ph_DK
[10:26] <mattbrejza> ah x-f has landed
[10:27] <PE2G> Lunar_LanderU: 3 minutes
[10:27] <DL1SGP> which ballon are you listening to Lunar_LanderU ? "Both are transmitting DominoEX16 on 434.500Mhz every 5 mins with 3 second 'pips' in between transmissions. " source: QRZ.com
[10:27] <LeoBodnar> Vbat >= 4.0V && Vsolar >= 0.5V ? 2 min : 5min
[10:27] <Lunar_LanderU> ah
[10:27] <Lunar_LanderU> thanks
[10:27] <Lunar_LanderU> B-12
[10:27] <LeoBodnar> In assembly® of course
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[10:27] <daveake> This is a historic moment LL
[10:28] <Lunar_LanderU> yea :)
[10:28] <Lunar_LanderU> my first PICO flight
[10:28] <daveake> I will forever remember where I was when that happened
[10:28] <Ugi> is DanielRichman inda' house?
[10:28] <Laurenceb> trollercoaster
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[10:28] <Lunar_LanderU> lol
[10:29] <SpeedEvil> DL1SGP: they are auto recording - but manual decodes can be added throguh some process I don't understand
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[10:29] <PE2G> Lunar_LanderU: Sorry, B-12 sends data at 5 min intervals, B-11 at 3 min.
[10:29] <DutchMillbt> Whow! B12 back in town
[10:30] <PE2G> B-11 even less than 3 min
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[10:30] <ike> is this for real?
[10:31] <ike> where was it?
[10:31] <bertrik> yes!
[10:31] <SpeedEvil> :)
[10:31] <SpeedEvil> ike: aliens
[10:31] <ike> and battery is fully charged
[10:31] <PE2G> I give up: B-12 also at less than 2 min.
[10:31] <Lunar_LanderU> PE2G: yeah was just wondering
[10:31] <navrac_work> taking a holiday somewhere sunny till the solar charged the battery enough
[10:32] <DL1SGP> brb armstrong rotator needed on garage roof to adjust directional antenna to 140deg bearing for B-11
[10:32] <SpeedEvil> ike: reload tracker - the log has been played back and integrated into the path
[10:32] <SpeedEvil> Err - ignore me
[10:32] <SpeedEvil> I was confused
[10:33] <Laurenceb> B11 and B12 are number 1 and 2 for record duration now
[10:33] <SpeedEvil> LeoBodnar: has b12 replayed the log - and there is missing bits - or has it not done a replay yet
[10:34] <Ugi> Assuming B12 wasn't sitting on a beach in the S of France for 2 days
[10:34] <ike> he said about some bug
[10:35] <tweetBot> @G0TDJ: Live stream of #ukhas Conference 2013 in Royal Greenwich tomorrow at: http://t.co/8suyzfc9ca #HAB #hamr
[10:35] <LeoBodnar> B-12 rebooted and lost the log
[10:36] <ike> low voltage?
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[10:36] <LeoBodnar> yes, bad battery
[10:36] <Ugi> LeoBodnar: Does B-12 have the smaller capacity battery?
[10:36] <LeoBodnar> Yes, twice smaller but also an old battery.
[10:37] <ike> aren't log saved in flash
[10:37] <LeoBodnar> no, RAM
[10:37] <PE2G> SpeedEvil: This was the first sentence in the 10 UTC log:
[10:37] <ike> I bet that you have a lot of free flash
[10:37] <PE2G> $$B-12,1,080746,50.39,5.8416,9319,8,-6,3.48,0.6*2de1
[10:37] <LeoBodnar> How did you manage to retune so quickly PE2G ?
[10:38] <ike> if 0xFFFF then data is invalid, else valid data - send it
[10:38] <HixWork> Thought it was worth saving a screengrab of EuroTrackfest2013 http://i.imgur.com/Pfazcas.jpg
[10:39] <HixWork> Anyone interested in geofencing?
[10:39] <SpeedEvil> PE2G: so it reset the sequence
[10:39] <PE2G> LeoBodnar: Well, the FT-790R filter is 3k. I heard B-12 appearing next to B-11
[10:39] <G0TDJ_Steve> HixWork: I've been saving a few grabs myself as they've progressed
[10:40] <PE2G> LeoBodnar: And started a second instance of dl-fldigi immediately
[10:40] <Laurenceb> i wonder if itd be feasible to do current monitoring
[10:40] <HixWork> B12 dit "balls to France"
[10:40] <Laurenceb> the MPPT ic does that already
[10:41] <SpeedEvil> What's the total number of receivers that have gotten a signal this flight - must be >40
[10:42] <Ugi> SpeedEvil: I think you can get that info' from habhub - I'll check
[10:42] <G0TDJ_Steve> LeoBodnar: What are B11 & 12's flight times now?
[10:43] <navrac_work> I can just hear B12 now in suffolk
[10:43] <SpeedEvil> navrac_work: yeah - you're just on the horizon. :)
[10:43] <HixWork> SpeedEvil http://pastebin.com/0PGiNy4Q
[10:43] <PE2G> BTW, I didn't manage to discern B-12 visually when it passed overhead a few minutes ago. Too small and no telescope here.
[10:44] <HixWork> thus far
[10:44] <Laurenceb> LeoBodnar: are the two panels in series?
[10:44] <navrac_work> managed to get half a packet - i didnt retune fast enough
[10:44] <Ugi> SpeedEvil: 71 separate callsigns on HabHub log
[10:44] <Ugi> for B-11
[10:44] <SpeedEvil> wow
[10:44] <SpeedEvil> Laurenceb: no
[10:45] <SpeedEvil> Laurenceb: (based on the voltage)
[10:45] <Lunar_LanderU> LeoBodnar: did you ever think that would be possible one day when you launched B-1?
[10:45] <Laurenceb> it might be scaled
[10:45] <SpeedEvil> A mPPt that chose 0.65V would be very, very broken
[10:45] <Ugi> PEG2G winning with 777 green decodes
[10:45] <navrac_work> yeah got as green
[10:45] <SpeedEvil> Laurenceb: true, I guess. But parallel is best - otherwise shading will kill it
[10:45] <Laurenceb> just reading mppt datasheet
[10:45] <Ugi> Leo_reomte bringing up the rear with 1
[10:46] <SpeedEvil> Laurenceb: Will it startup with Vbat=0 and solar panel up?
[10:46] <Laurenceb> seems 2 in series improves efficiency
[10:46] <Laurenceb> good question
[10:47] <SpeedEvil> Laurenceb: improves efficiency - but if one panel is half shaded - you get half output from a series string, but 3/4 from parallel
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[10:48] <Laurenceb> "If V
[10:48] <Laurenceb> OUT
[10:48] <Laurenceb> is lower than
[10:48] <Laurenceb> 0.8 V, the device moves from power off to soft-start mode and the current flows from the input to output through the intrinsic body diode of the synchronous rectifier"
[10:49] <Laurenceb> http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00287506.pdf
[10:49] <ike> http://spacenear.us/tracker/?filter=B-12%3B+B-11 the big balloon race
[10:49] <SpeedEvil> hahahhah.
[10:49] <nats`> I checked law to launch balloon in France.....
[10:49] <SpeedEvil> the tracker has broken - there aren't enough colours.
[10:50] <ike> who will be the first to get to Oslo
[10:50] <nats`> like for everything else that's a pain in the ass
[10:50] <eroomde> nats`, you're based in france?
[10:50] <nats`> yep
[10:51] <LeoBodnar> Laurenceb: parallel
[10:51] <Laurenceb> i see
[10:51] <LeoBodnar> Lunar_LanderU: I thought it won't even make it to the nearest lamppost
[10:52] <eroomde> nats`, where abouts in france?
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[10:52] <mikestir-work> congrats on re-acquiring B12 LeoBodnar!
[10:52] <LeoBodnar> Big boys here are launching H2 to 44km and here we are with a latex party balloon from eBay :D Thanks for not laughing at us !
[10:53] <nats`> eroomde in the Paris area
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[10:53] <LeoBodnar> At least openly XD
[10:53] <Laurenceb> LeoBodnar: what size R_sense resistor?
[10:53] <Laurenceb> i dont see recommended size in datasheet
[10:53] <eroomde> latex don't superpressure well
[10:53] <eroomde> simple as
[10:53] <eroomde> if they did it might be fascinating
[10:53] <LeoBodnar> 0R in my design lol
[10:53] <Laurenceb> wtf
[10:53] <Laurenceb> oh
[10:53] <Laurenceb> its not for MPPT?
[10:54] <Laurenceb> i though it used that for current sense
[10:54] <nats`> eroomde why do you ask you're from France ?
[10:55] <eroomde> i'm half french :)
[10:55] <eroomde> so almost but not quite from france
[10:55] <Lunar_LanderU> LeoBodnar: oh ok
[10:55] <nats`> ?
[10:55] <eroomde> french side are from beaune, near dijon
[10:55] <nats`> ok :)
[10:55] <nats`> half french too but live in france :)
[10:56] <Lunar_LanderU> LeoBodnar: damn, LOS
[10:56] <Lunar_LanderU> :(
[10:56] <eroomde> whats your other half?
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[10:56] <nats`> morocco :)
[10:56] <Lunar_LanderU> cool
[10:56] <eroomde> that's a bit more exciting than norfolk
[10:56] <eroomde> (my other half)
[10:56] <Lunar_LanderU> did you hear about the transatlantic flight that landed in morocco?
[10:57] <nats`> eroomde I didn't know morocco well in fact :)
[10:57] <nats`> Lunar_LanderU nop :)
[10:57] <Lunar_LanderU> ah
[10:57] <Lunar_LanderU> was a balloon launched in California
[10:57] <Lunar_LanderU> the same group made the first transatlantic and transamerica crossing the year before
[10:57] <Lunar_LanderU> there the balloon landed off the coast of Algeria
[10:58] <Lunar_LanderU> but this one landed in Morocco and was found
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[10:58] <nats`> that's a fucking great distance
[10:58] <nats`> how did they track the balloon ?
[10:58] <nats`> land based radio stations ?
[10:58] <Rebounder> LeoBodnar: projections for B11/b12 for the next days?
[10:59] <Lunar_LanderU> nats`: http://www.cnsp-inc.com/trans-atlantic-voyages/
[10:59] <Lunar_LanderU> APRS
[10:59] <LeoBodnar> Laurenceb: if remember correctly size R_sense to produce 50mV drop at limit current
[10:59] <Laurenceb> i see now
[10:59] <Laurenceb> and it uses the smps timings to find the max power point
[10:59] <Laurenceb> clever
[10:59] <LeoBodnar> It is current sense but solar panel will never produce enough current to exceed battery charging limit
[11:00] <Lunar_LanderU> http://www.cnsp-inc.com/cnsp-18-k6rpt-12-has-been-recovered-in-morocco/
[11:00] <Laurenceb> yeah
[11:00] <LeoBodnar> I.e. these LiPos charge at 2C rate
[11:00] <LeoBodnar> full charge in 30 min
[11:00] <LeoBodnar> we don't see that on the charts
[11:01] <nats`> Lunar_LanderU maybe a silly question but those guys are not amateur ?
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[11:02] <DL1SGP> B-11 @ 1100UTC: $$B-11,3811,105935,51.5023,10.7192,9058,7,7,4.06,0.65*b2d6
[11:02] <Lunar_LanderU> they are amateur
[11:02] <Lunar_LanderU> but probably they geared up a bit and formed an Inc.
[11:02] <Laurenceb> LeoBodnar: i guess you could have a sense resistor on the ground return
[11:02] <Laurenceb> to measure current into the battery
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[11:04] <LeoBodnar> Can do current but it's not going to reveal much
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[11:04] <Laurenceb> battery health
[11:04] <Laurenceb> http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1295/LN962/PF255518
[11:04] <Laurenceb> that has built in opamps
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[11:06] <Laurenceb> LeoBodnar: what size pic do you use atm?
[11:07] <LeoBodnar> PIC24FJ 64KB flash
[11:07] <Laurenceb> sorry - physical size
[11:07] <LeoBodnar> I think 5x5 let me check
[11:08] <nats`> http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1295/LN1808/PF255678 <= I think I'll try to put that on my board
[11:08] <Laurenceb> hmm yeah some of the M0 stuff is smaller
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[11:08] <LeoBodnar> 6x6 QFN
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[11:09] <Laurenceb> ah - the L1 is 7x7 QFN
[11:10] <Laurenceb> but you can run it at 1.8v
[11:10] <ike> https://www.google.com/search?q=lpc1102&um=1&ie=UTF-8&hl=en&tbm=isch&source=og&sa=N&tab=wi&ei=_LcpUv7eN4bEtAbpxIGYAQ&biw=1280&bih=933&sei=B7gpUu65A8nNtAa2voGgDg
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[11:12] <LeoBodnar> Can do with extra power when it comes to receiving
[11:12] <Laurenceb> arg F0 is 2.0v
[11:12] <LeoBodnar> I want to do an HF balloon next
[11:12] <Laurenceb> ah yeah of course
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[11:13] <ike> LD6836CX4 Ultra low-dropout regulator, low noise, 300 mA, WLCSP4
[11:13] <Geoff-G8DHE-M> Possible problem with HF is skip distances when using vertical aerials
[11:13] <nats`> LeoBodnar I think using 7x7 qfn
[11:13] <nats`> or maybe some other in lfbga
[11:13] <DL1SGP> If B-11 stays on it's present track and goes over the middle-mountains of "Harz"-Area it will get in much better here, so I am preparing my main shack computer to run fldigi for reporting directly to you guys
[11:13] <nats`> problem is the routing of LFBGA even OshPark cannot meet the requirement
[11:14] <LeoBodnar> Size is really not THAT critical.
[11:14] <LeoBodnar> In fact it is not critical at all
[11:14] <Lunar_LanderU> LeoBodnar: I'm taking my antenna home to use it on the FT-790R
[11:14] <LeoBodnar> Ha!
[11:14] <nats`> yep but I'm used to qfn and bga
[11:14] <Lunar_LanderU> maybe something will come out of that later when B-11 comes around
[11:14] <nats`> I don't really like qfp
[11:14] <LeoBodnar> Easy to replace
[11:14] <Laurenceb> LeoBodnar: so STM32L1 !
[11:14] <nats`> I don't agree ;)
[11:15] <nats`> I love the flux + hot air rework on qfn
[11:15] <nats`> less short cut and quicker
[11:15] <LeoBodnar> OK, I am convinced
[11:15] <nats`> (on small qfn obviously)
[11:15] <nats`> I don't try to convince you ;)
[11:15] <nats`> that an opinion
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[11:18] <nats`> I'm puzzled the uqfn package of stm32 is worse than the lqfp in thermal conductivity...
[11:18] <nats`> I always though that qfn was better
[11:19] <Laurenceb> yeah that is odd
[11:19] <Laurenceb> not that an stm32 is likely to overheat
[11:19] <nats`> ohh my bad they give thermal resistance
[11:19] <Laurenceb> lol
[11:19] <nats`> in that case the highest thermal resistance could be a plus in fact :D
[11:20] <Laurenceb> they are rated to -40C so *shrug*
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[11:21] <nats`> what temperature you expect to have in high altitude ?
[11:21] <nats`> I saw some -20 in log
[11:22] <Laurenceb> -30C seems to be the minimum
[11:22] <Darkside> i've seen lower
[11:22] <Laurenceb> i tempted to launch my own pico now
[11:22] <Laurenceb> with hydrogen
[11:22] <Lunar_LanderU> I measured -60°C on my flight in March
[11:22] <Darkside> yeah
[11:22] <Laurenceb> and omnivision sensor
[11:22] <Laurenceb> i mean of B11/12
[11:22] <Darkside> the problem is we often hit the temp sensors bottom end
[11:22] <nats`> -60 ?! oO
[11:22] <Darkside> we had a paylaod flying over night at 38km hit -55 degrees
[11:23] <Darkside> and i've seen temp sensors on met bureau radiosondes report -90
[11:23] <nats`> and you didn't use a "hot wire" heater ?
[11:23] <Darkside> well the temp inside the payload will be warmer
[11:23] <Darkside> due to power dissipation
[11:24] <Laurenceb> LeoBodnar: the class E amp on the silabs can do 100mW on 3.3v cant it?
[11:24] <Darkside> ooooer the silabs use a class E amp on 434MHz?!
[11:24] <Darkside> thats cool
[11:24] <Laurenceb> in which case thats about 20mW at 1.8v
[11:24] <Laurenceb> thats why its so decent
[11:24] <Laurenceb> one of many reasons
[11:27] <nats`> you could use a different matching to have better performance
[11:27] <nats`> but at the loss of current
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[11:28] <enkidu> some bitch is gonna die today ;/
[11:29] <Laurenceb> thats the spirit
[11:29] <nats`> ?
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[11:30] <gonzo_> he's having his dog put down?
[11:30] <enkidu> I cannot scan for radiosondes because whole band is taken by some device
[11:30] <LeoBodnar> Si4463 yes you can +20dBm
[11:30] <nats`> electronic war declaration :D
[11:30] <LeoBodnar> But voltage spikes can cause output MOSFETs to blow
[11:31] <navrac_work> 385km from a pico - I'm just holding on to see if I can get 400km
[11:31] <DL1SGP> now uploading telemetry
[11:31] <LeoBodnar> YOu need to shunt harmonics before LPF
[11:31] <PE2G> enkidu: 403 band taken?
[11:33] <nats`> LeoBodnar you mean when you use a Switched current matching ?
[11:33] <enkidu> PE2G: unfortunately
[11:33] <enkidu> multiple transmissions
[11:33] <PE2G> enkidu: That's really bad
[11:33] <enkidu> in 30khz spacing
[11:33] <Laurenceb> LeoBodnar: you need SSDV on one
[11:34] <Laurenceb> using omnivision sensor - RS sell them cheaply
[11:34] <PE2G> enkidu: You could call the authorities for that
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[11:34] <Laurenceb> well that or a pressure sensor - second option is probably more sane
[11:34] <enkidu> most funny is, that signal has similar encoding to that from sonde
[11:35] <Laurenceb> is there a hysplit for B-12?
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[11:35] <PE2G> A strong signal from a met-sonde??
[11:36] <enkidu> it should be attached to my antenna for such signal
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[11:37] <g4sgx_iain> B12 back again? no way..!
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[11:39] <SpeedEvil> way
[11:39] <Laurenceb> nice range Navrac
[11:40] <navrac_work> thanks - not bad for a colinear on a short stick leaning against the barn at 5mASL
[11:40] <navrac_work> just holding out to make 400km - 394 at the moment
[11:40] <g4sgx_iain> Any theories on what happened to it?
[11:40] <WD8MNV> aliens
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[11:42] <enkidu> http://25.media.tumblr.com/tumblr_m9qhtgr9cj1qbilvco1_400.jpg
[11:42] <Laurenceb> where did you get my photo from
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[11:45] <navrac_work> 400.6Km yea
[11:45] <Rebounder> sri for stupid question... but where's the link to the latest dl-fldigi? find nothing att code.google..
[11:46] <gonzo_> on the ukhas page, 'a guide to tracking'
[11:47] <Rebounder> ah
[11:47] <Rebounder> "of course"... :)
[11:47] <Rebounder> thanks
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[11:48] <Laurenceb> LeoBodnar: if you turn the TCXO on/off is there a warm up drift?
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[11:50] <LeoBodnar> updated http://leobodnar.com/balloons/B-11/NOAA.gif http://leobodnar.com/balloons/B-12/NOAA.gif
[11:50] <LeoBodnar> Laurenceb: probably not, it only consumes ~ 2mW of power
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[11:54] <LeoBodnar> Laurenceb: what is the omnivison sensor?
[11:55] <nats`> LeoBodnar those graph are based on the winds prevision ?
[11:56] <Maxell> Omg, OZ1SKY is now tracking. Hero!
[11:57] <Laurenceb> http://uk.rs-online.com/web/p/graphics-display-development-kits/0550435/
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[11:58] <SpeedEvil> store.sony.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&productId=8198552921666597728 would in principle be useful for HAB
[11:58] <SpeedEvil> though clearly not teeny balloons
[11:59] <SpeedEvil> 105g
[12:01] <navrac_work> log time
[12:03] <Laurenceb> http://mamedev.org/source/src/lib/libjpeg/libjpeg.txt.html
[12:03] <Laurenceb> that shuld run on stm32l1
[12:05] <Laurenceb> annoyingly theres no camera interface on l1 tho
[12:05] <LeoBodnar> nats`: yes http://ready.arl.noaa.gov/HYSPLIT_traj.php
[12:07] <nats`> thanks for the link !
[12:07] <nats`> :)
[12:07] <nats`> Now I need to find a friends in england or screw with french laws :D
[12:07] <Laurenceb> looks like they should be receivable over the weekend
[12:10] <Laurenceb> aha http://code.google.com/p/jpegant/
[12:13] Action: Laurenceb wonders if DMA could be haxored to run from gpio on an stm32
[12:14] <LeoBodnar> You can probably compress JPEG as you read it from CCD in blocks of 8 lines (if you don't do full frame analysis or correction)
[12:14] <Laurenceb> i think thats how the compressor works
[12:14] <LeoBodnar> To avoid spacious RAM requirements
[12:14] <LeoBodnar> OK
[12:14] <DL1SGP> back after Lunch. B-11 still coming in fine, in a while I gonna adjust antenna bearing
[12:14] <Laurenceb> dunno if you could store frame on the image sensor
[12:15] <LeoBodnar> But some sensors require on precise timing when retrieving the data as this triggers sampling of the next line
[12:15] <Laurenceb> you could cheat
[12:15] <LeoBodnar> 'course you can
[12:15] <Laurenceb> and use different frames for each line of the image
[12:15] <Laurenceb> tear central
[12:15] <LeoBodnar> there is always a neat hack
[12:15] <fsphil> hah
[12:15] <fsphil> that's be ugly
[12:15] <fsphil> 'd
[12:16] <fsphil> how much memory do you have?
[12:16] <Laurenceb> 32KB
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[12:17] <enkidu> taxi drivers
[12:17] <LeoBodnar> external SRAM no problem
[12:17] <enkidu> they are interferencing
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[12:17] <fsphil> only just enough to store 640x16
[12:17] <Laurenceb> more space and current
[12:17] <fsphil> no room for anything else
[12:18] <fsphil> unless you don't need colour
[12:18] <Laurenceb> http://docs-europe.electrocomponents.com/webdocs/0cbe/0900766b80cbe14a.pdf
[12:18] <Laurenceb> that does QVGA 4:2:2 compliant with CCIR656
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[12:18] <Laurenceb> 72KB
[12:18] <fsphil> 5K would be enough to store a 640x8 line in b/w
[12:19] <Laurenceb> im wondering if there re sensors that can be paused during readout
[12:20] <fsphil> that'd be ideal
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[12:21] <fsphil> 15KB could store a 640x16 line if it's stored yuv with the uv subsampled
[12:22] <ike> LeoBodnar can't you just store it in flash
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[12:25] <LeoBodnar> Yes there are Laurenceb they have separate storage area
[12:25] <LeoBodnar> They usually look 2x bigger than they should be
[12:26] <LeoBodnar> http://www.avcemporium.com/ccd-sensor-architectures/
[12:27] <LeoBodnar> flash takes a long time to write
[12:28] <Laurenceb> i guess GIF would work
[12:28] <Laurenceb> with inline encoding
[12:29] <navrac_work> 450km :-)
[12:29] <Laurenceb> crazy
[12:29] <mattbrejza> what elevation is that?
[12:29] <PE2G> navrac_work: Cool
[12:29] <navrac_work> -0.8
[12:30] <mattbrejza> i had it down to -1 at one point i think
[12:30] <mattbrejza> my antenna was higher than yours though
[12:31] <navrac_work> -0.9 now - i think the reason im getting it so well is im so close to the sea there are no hills - so just sea between me and it
[12:31] <mattbrejza> pretty much the same for me
[12:32] <Laurenceb> actually - 100 pixel square subsampling would work with the omnivision sensors
[12:32] <Laurenceb> then use 16bit colour
[12:32] <Laurenceb> thats 20KB
[12:33] <Laurenceb> probably doable with stm32l1
[12:34] <Maxell> HorizonHunter: RevSpace is now out of B-12's horizon!
[12:34] <Maxell> PB0AHX
[12:34] <Maxell> He is also out :P
[12:37] <PE2G> navrac_work: di you ever have -0.9 with RTTY ?
[12:37] <PE2G> *did you
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[12:45] <navrac_work> no never that low -0.3 or 4 was about as low as i got
[12:45] <enkidu> zinoo2 released
[12:46] <enkidu> ill have hard time making decisions, what to decode first
[12:46] <SpeedEvil> http://www.belfasttelegraph.co.uk/news/local-national/northern-ireland/tragedy-of-the-13yearold-girl-who-died-after-sticking-her-head-into-a-heliumfilled-balloon-28614829.html
[12:47] <enkidu> where are frequencies for zinoo?
[12:48] <PE2G> navrac_work: That goes for me too: RTTY -0.4 , DomEx16 -0.6
[12:49] <navrac_work> from my ears i was decoding at a noise level that was much higher than i could decode rtty
[12:52] <PE2G> Yeah, currently I have some interference that would spoil RTTY completely, and DomEx still decodes
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[12:53] <bertrik> my attempt at THOR is still work in progress, but close to working I think
[12:54] <bertrik> the varicode implementation in dl-fldigi clearly was not made to be memory efficient, so I plan to rewrite it or copy it from Upu's code
[12:57] <Ugi> with all the water-landings I'm getting predicted, I'm more worr
[12:57] <Ugi> ied about this: http://www.belfasttelegraph.co.uk/news/world-news/never-mind-the-pollocks-testicleeating-pacu-fish-found-in-paris-could-be-coming-to-the-uk-29556761.html
[12:57] <kopijs_> enkidu: zinoo2 must be 434.650, 50baud, 300shift, 7buts, no prty, 2 stop bits
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[12:58] <enkidu> kopijs_: where are frequencies on habhub?
[12:59] <taai> Hi! Can anybody help us to track our baloon right NOW? We are in Latvia and baloon is broadcasting at 600 MHz frequency. Name: ZINOO2
[13:00] <Darkside> 600MHz?!
[13:00] <enkidu> o.O
[13:00] <enkidu> no way I will receive it here
[13:00] <enkidu> its in TV range
[13:00] <Darkside> why th hell is it transmitting there
[13:00] <enkidu> 602MHZ is 100kW dvbt transmitter
[13:00] <enkidu> 9km away
[13:00] <Darkside> thats not in any amateur band
[13:00] <Darkside> yeah
[13:00] <Darkside> thats a TV band...
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[13:01] <Darkside> that can't be right..
[13:01] <Laurenceb> interesting
[13:01] <Laurenceb> it seems stm32l1 might be fast enough to do line based jpeg encode
[13:01] <Laurenceb> so you can clock down the omnivision pixel clock to 500KHz
[13:01] <Laurenceb> then just encode the lines as they arrive
[13:01] <taai> Nope. I was wrong. It's 434.650 MHz
[13:02] <Darkside> that sounds more reasonabl
[13:02] <Laurenceb> also the SSDV trims out loads of the upper level stuff
[13:02] <Laurenceb> so its faster if everything is packaged together coherently
[13:02] <enkidu> now we can talk
[13:03] <Darkside> i wonder if theres any globaltuners around there
[13:03] <Laurenceb> pity that omnivision sensors need 2.4v supply, but that seems to be tho only requirement
[13:03] <Laurenceb> all the digital can eat 1.8v
[13:03] <taai> We have a weak antenna that is plugged in laptop, so it's not that strong and we are getting scrambled data. That's why we ask you for help tracking it. :)
[13:03] <Darkside> you shoudl have tested this before launching...
[13:04] <enkidu> taai: is it designed for what altitude?
[13:05] <taai> We did test it and it worked. But now it's in the sky and now we see the problem - we can't get that strong signal and we think that it's because the antenna is too weak.
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[13:06] <taai> It's transmitting. But we get scrambled data - few letters, but no full sentences to put in http://spacenear.us/tracker/
[13:08] <Geoff-G8DHE-M> You haven't got the freq's reversed by any chance have you ? Try the Rv button in fldigi ?
[13:10] <Darkside> LeoBodnar: dammit :P
[13:10] <DL1SGP> taai: where is your ballon going to?I would assume drifting to the north?
[13:10] <enkidu> DL1SGP: actually wind will blow it south
[13:10] <Darkside> nope, going south it looks like
[13:10] <Darkside> according to the prediction anyway
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[13:11] <taai> It should be 434.65 MHz . The packet is being sent in ~5 seconds at 50 baud rate and there is a 2 second pause between them.
[13:11] <Darkside> heh, leo is on the globaltuner that could hear it
[13:11] <enkidu> with its current speed it will be near me at few hours
[13:11] <taai> It's going to SW
[13:11] <DL1SGP> aha have not checked preds sorry folks, still I fear it won't get close to me
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[13:12] <Darkside> nup, theres nothing in the area thats useful
[13:13] <Darkside> no receivrs i can use
[13:13] <LeoBodnar> Darkside: I can't hear anything on Vidablick on 434.650 you are welcome to use it
[13:13] <Darkside> ah if you cant hear anthing there, then it wont matter
[13:13] <taai> Actually the baloon will break at ~30 km altitude and will fall down after ~ 100 km. It's a test flight.
[13:14] <Darkside> though it might hear something in an hour or so
[13:15] <Laurenceb> LeoBodnar: you could use an LDO to 2.5v to power the camera analogue rail
[13:15] <Laurenceb> and put the camera into sleep mode most of the time
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[13:16] <LeoBodnar> I'll try later Darkside, sorry didn't meant to hog the receiver. It's quite deaf and there are some local 1sec and 3 sec beepers in the noise (radars?)
[13:17] <Darkside> probably LIPD stuff
[13:17] <LeoBodnar> Yes Laurenceb that looks appealing, I have been looking at some sensors a little bit
[13:18] <Laurenceb> maybe more sane to add a baro sensor first
[13:18] <LeoBodnar> There is also nice 50Hz mains hum possibly from the PSU
[13:19] <Laurenceb> but pico SSDV would be very cool
[13:19] <LeoBodnar> Poland has joined in as well :D
[13:19] <DL1SGP> taai: I sent you a direct message with req for info
[13:19] <SpeedEvil> :)
[13:19] <LeoBodnar> Yeah, minimalist way
[13:21] <SpeedEvil> If you draw a 250km radius around the outside of the towers on the map, it's quite impressive :)
[13:22] <eroomde> i like sensors
[13:23] Action: SpeedEvil wishes there were more sensors.
[13:23] <SpeedEvil> Gravitational gradient sensors would be nice - ones that could be used to detect small (1cm) objects of a varying density
[13:24] <Geoff-G8DHE-M> Should have said earlier I have a couple of dozen of them in my pocket!
[13:24] <SpeedEvil> :)
[13:25] <SpeedEvil> Readout is a problem
[13:25] <Laurenceb> how do the mil ones work?
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[13:27] <enkidu> no way I will receive zinoo, only noise around
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[13:28] <Upu2> ping fsphil :)
[13:28] Nick change: Upu2 -> Upunodnol
[13:28] <OZ1SKY_Brian> Hi
[13:29] <Upunodnol> hey Brian
[13:29] <OZ1SKY_Brian> nice signal from b-12 and B-11 weak
[13:29] <Upunodnol> picked anything up yet ?
[13:29] <OZ1SKY_Brian> yes decoding
[13:29] <Upunodnol> cool :)
[13:29] <Ugi> red dwarf fan UPU?
[13:29] <OZ1SKY_Brian> Also alerted oz9aeh and oz5agj
[13:29] <Upunodnol> cant load snus on iphone as Leo has broken it
[13:30] <Upunodnol> maybe Ugi :)
[13:30] <Upunodnol> just waiting for fsphil
[13:30] <gonzo_> no poppong behind the sand dunes!
[13:30] <Ugi> Well, we are thw smart party!
[13:30] <Ugi> the
[13:30] <Upunodnol> then we are going to get arko
[13:31] <Upunodnol> who is here
[13:31] <Upunodnol> later
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[13:32] <OZ1SKY_Brian> Thats a pretty god mode, decoding B-11 on allmost no signal
[13:33] <OZ1SKY_Brian> B-11 is at -0.9deg elevation and just audioable
[13:33] <nats`> ZINOO2 grabbed by a receptor in russia ?
[13:33] <Laurenceb> LeoBodnar: will B11 start overwriting its log soon?
[13:33] <nats`> isn't it a record ?
[13:34] <OZ1SKY_Brian> how lucky is it they are about 500Hz apart and not transmitting at the same time :-)
[13:35] <mattbrejza> OZ1SKY_Brian: its using a tcxo so they dont drift
[13:35] <Geoff-G8DHE-M> B-12 was set to be 500Hz lower for that reason!
[13:35] <OZ1SKY_Brian> ohh ok good point
[13:36] <taai> Wait, what? Did you receive the signal of ZINOO2 in Russia?
[13:36] <LeoBodnar> after 64 x 2 hours
[13:36] <LeoBodnar> from the 1st record
[13:37] <nats`> look at the map
[13:37] <nats`> a russian receptor got the zinoo2
[13:37] <LeoBodnar> so after 5 days 8 hours
[13:37] <LeoBodnar> Hehe Geoff-G8DHE-M
[13:37] <enkidu> icarus at 28km, hope it will be flying longer than wonderwoks
[13:38] <Geoff-G8DHE-M> I think they have the wrong Lat/Long in dl-fldigi
[13:38] <LeoBodnar> would be cool for dl-fldigi to report SNR back to the habitat
[13:39] <LeoBodnar> Anybody keeps habitat features wish-list?
[13:39] <enkidu> I have some signal but too weak to decode
[13:40] <Geoff-G8DHE-M> Don't think so I would love dl-fldigi to actually read the GPS position on windows but it doesn't :-(
[13:41] <taai> nats` : Nope, there is a one letter difference! ZONOO-TDRS and ZINOO-TDRS But I really don't know. :)
[13:44] <LeoBodnar> The "Russian" station has GPS coordinates 57.32 , 57.32
[13:44] <LeoBodnar> 57.32N 57.32E
[13:44] <LeoBodnar> Lucky
[13:46] <nats`> taai when I put the cursor on the zinoo2 track there is a green line going to this station in russia
[13:47] <bertrik> must be wrong station coordinates, because otherwise it would be waay out of range
[13:47] <LeoBodnar> Just snapped a nice doodle of http://spacenear.us/tracker/?filter=B-12;B-11
[13:47] <enkidu> what is icarus?
[13:48] <Geoff-G8DHE-M> An old flight someone played back a sample mp3 file
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[13:50] <enkidu> taai: rtty, 50baud?
[13:50] <taai> dnkidu: Yes
[13:51] <taai> enkidu :)
[13:51] <enkidu> I see signal little above noise
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[13:51] <taai> That's a great news! Do receive any usable data?
[13:52] <tweetBot> @AnthonyStirk: #ukhas Arko testing he doesn't crash on the meridian http://t.co/EuYrthT6pD
[13:53] <enkidu> only carrier, little modulated
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[13:53] <Sven_> Hallo
[13:53] <Sven_> or hello :)
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[13:54] <Geoff-G8DHE-M> Welcome
[13:54] <OZ1SKY_Brian> Hi Sven_
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[13:56] <Sven_> flight a ballon?
[13:56] <taai> My college who is out there, said that he thinks that the direction diagram of the antenna is not right. What ever that means. :) Does it mean that the probe will be untraceable until it's on the ground again?
[13:57] <LeoBodnar> Never give up
[13:57] <DL7AD> do we have any new predition now?
[13:57] <taai> About the tower from Russia - nope, it appears to be ours, just the coordinates of it are wrong. :D
[13:58] <nats`> sorry to leo there is no 37.52 37.52 HAM :D
[13:59] <taai> Yes, we can see the landing prediction in the map. But it would be more useable to get the actual GPS coordinates.
[14:00] <Laurenceb> B12 seems fully chanrged?
[14:01] <OZ1SKY_Brian> B11 transmitting all the time now?
[14:01] <LeoBodnar> Hehe it would be funny if there was!
[14:01] <OZ1SKY_Brian> keeps sending strings
[14:02] <WD8MNV> doesn't it dump it's log on the even hours?
[14:02] <LeoBodnar> Yes it does UTC even hours
[14:02] <Laurenceb> how many hours before B11 log overwrites?
[14:02] <OZ1SKY_Brian> funny, did something just happen to the GPS, now i read -6.6deg elevation, before -0.9
[14:02] <LeoBodnar> 5 days 8 hours
[14:02] <Laurenceb> coming up soon then
[14:03] <LeoBodnar> from the 1st entry
[14:03] <Laurenceb> yeah
[14:03] <OZ1SKY_Brian> ah ok its logged
[14:03] <Laurenceb> so it will then temporarily fix the bug?
[14:03] <LeoBodnar> I've lost count of time :P
[14:03] <DL1SGP> it is sending like mad :)
[14:03] <OZ1SKY_Brian> yes
[14:03] <Laurenceb> almost 5 days
[14:03] <LeoBodnar> It is mad
[14:03] Action: DL1SGP likes mad things!
[14:04] <OZ1SKY_Brian> ok now b-11 stopped
[14:04] <DL1SGP> yes
[14:04] <DL1SGP> sending its beeps now
[14:04] <DL1SGP> such a beepshow
[14:04] <DL1SGP> and tlm
[14:05] <OZ1SKY_Brian> yes back to normal now,
[14:08] <Sven_> is b-11 a SSDV ballon?
[14:09] <DL1SGP> OZ1SKY_Brian: I will be operationg /p from Ebeltoft area around xmas if things go fine, just to pre-warn ye :)
[14:10] <OZ1SKY_Brian> DL1SGP nice, let me know when and we´ll have a qso :-)
[14:10] <DL1SGP> sure will :)
[14:11] <Laurenceb> SpeedEvil: http://www.gravitec.co.nz/gravity_gradiometer.html
[14:12] <Laurenceb> <Sven_>: no, but we were discussing SSDV on a foil floater earlier
[14:12] <Laurenceb> it seems feasible
[14:13] <OZ1SKY_Brian> That domx16 mode seems to be very good
[14:14] <DL1SGP> yeah it rocks the house!
[14:14] <OZ1SKY_Brian> Clear decodes even when just audioable.
[14:14] <DL1SGP> when I was on roof a bit ago to re-adjust antenna bearing it was interesting to see that it was in correct position already. had no compass earlier lol
[14:15] <OZ1SKY_Brian> DL1SGP we should be able to qso direct also with abit of tropo, your not THAT far away
[14:15] <SpeedEvil> Laurenceb: neat
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[14:15] <SpeedEvil> Laurenceb: Wake me when it's in QFN36
[14:15] <SpeedEvil> :)
[14:15] <Laurenceb> heh
[14:15] <OZ1SKY_Brian> DL1SGP jo42 or close to ?
[14:15] <DL1SGP> I will have a directional antenna with me and can go to the beach then there is just water and a bit of land between us
[14:16] <OZ1SKY_Brian> DL1SGP no i mean from Germany
[14:16] <OZ1SKY_Brian> DL1SGP on 2m
[14:16] <DL1SGP> oh I am in JO42co
[14:16] <DL1SGP> JO52co
[14:16] <OZ1SKY_Brian> DL1SGP i hear the hamburg rep regulary on 2m
[14:17] <DL1SGP> I would not worry about running a QSO from the shacks :D
[14:17] <DL1SGP> chance that you need DOK H05 for the DARC Diploma if you are doing such nasty things?
[14:18] <OZ1SKY_Brian> DL1SGP let me check :-)
[14:19] <OZ1SKY_Brian> DL1SGP yes missing on 6,2 and 70cm :-)
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[14:20] <DL1SGP> hehe well you find my email on qrz.com, we can sked once equipment has been restored entirely here (which should happen tomorrow)
[14:20] <OZ1SKY_Brian> DL1SGP FB :-)
[14:21] <Rebounder> What range can one expect with a R820T and stock antenna? Have one mounted at my chimeny. And also now one 9 el yagi in the attic but not a good place to have it.
[14:21] <OZ1SKY_Brian> Could someone enable predict for B-12?
[14:21] <Rebounder> <= SM3ULC
[14:22] <OZ1SKY_Brian> Rebounder tjena
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[14:23] <Rebounder> OZ1SKY_Brian: hejhej
[14:23] <DL1SGP> hejhej Rebounder!
[14:23] <Upu2> nice location for tommorrow really well sigh posted
[14:23] <Upu2> sat in lecture theatre now
[14:24] <mattbrejza> can you log in to the pc?
[14:24] <mattbrejza> whiteboard?
[14:24] <mattbrejza> internet?
[14:24] <mattbrejza> (eduroam?)
[14:24] <eroomde> Upu2, what news re: OHP?
[14:25] <eroomde> can you put a flag on the cutty sark pointing towards the conference?
[14:25] <Upu2> you have two massive ones
[14:25] <mattbrejza> also you should have enabled chasecar on the way down
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[14:27] <eroomde> cool
[14:27] <eroomde> that's gud
[14:27] <eroomde> thanks
[14:27] <enkidu> I will probably not receive zinoo, too many signals around, need real receiver ;/
[14:27] <eroomde> oh was that at mattbrejza or me, Upu2?
[14:28] <mattbrejza> anyone really
[14:28] <mattbrejza> need a swarm of cars converging on the conference
[14:29] <eroomde> i mean OHPs
[14:29] <eroomde> two massives ones
[14:29] <eroomde> or what it about whiteboards
[14:29] <mattbrejza> oh i misread
[14:29] <eroomde> the presence or not of an OHP will have a fairly significant influence on the presence of my talk or not
[14:29] <mattbrejza> is a whiteboard good too?
[14:30] <eroomde> i've drawn OHP slides now
[14:30] <eroomde> during the meeting yesterday
[14:30] <mattbrejza> oh right
[14:30] <Rebounder> Did anyone ahve any opions about the stock antenna (about 400 mhz ish...) so i know if i can expect some signal or if it's a dead end..
[14:30] <eroomde> with a box of transparecies i found in the bottom of the stationery drawer
[14:30] <mattbrejza> well get the pc projector to display a white page
[14:30] <mattbrejza> and put the ohp slide infront
[14:30] <mattbrejza> sorted
[14:30] <eroomde> what could go wrong
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[14:31] <WD8MNV> stock antenna may be good for a few miles on the ground i think
[14:31] <mattbrejza> http://www.gre.ac.uk/enterprise/venue
[14:31] <mattbrejza> http://www.gre.ac.uk/enterprise/venue/audio-visual you can hire it seems
[14:32] <eroomde> i'm assuming it comes with the room
[14:33] <mattbrejza> Upu might have to go an ask for one
[14:33] <mattbrejza> alothugh i guess there will probably be internet looking at that list
[14:33] <iain_G4SGX> Alas I'm definitely not going to make it down for the conference, just too busy.
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[14:33] Nick change: Geoff-G8DHE_ -> Geoff-G8DHE-M
[14:34] <iain_G4SGX> Waste of a ticket really but there you go. Next year..
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[14:34] <mattbrejza> there wasnt anyone wanting to come but was too late?
[14:35] <mattbrejza> mind you it seems people still registered after the deadline
[14:35] <WD8MNV> hope i'm here for the live feed
[14:36] <mattbrejza> bit far for you to travel?
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[14:37] <mattbrejza> ah W____ is the US
[14:37] <WD8MNV> yep... CM87VS here
[14:38] <mattbrejza> :/
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[14:38] <WD8MNV> and i'm even /6 (oakland, california)
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[14:44] <enkidu> I am pretty sure string I have decoded contain nuclear bomb plans
[14:44] <Rebounder> WD8MNV: ok, it's about 8 m up with clear view to the trajectory
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[14:50] <OZ1SKY_Brian> Just sent an email to norway and sweden, hope they answer, they tracked before.
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[14:51] <OZ1SKY_Brian> i mean to two people, not the entire country :-)
[14:52] <OZ1SKY_Brian> B-11 seems to be moving very slow
[14:52] <DL1SGP> yeap
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[14:57] <Laurenceb> 118hours for B-11
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[14:57] <OZ1SKY_Brian> fantastic
[14:58] <ike> B-12 Temperature: 3C Battery: 4.11 V looks fully charged
[14:58] <OZ1SKY_Brian> first time im inside some other flights 5deg elevation ring
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[14:59] <enkidu> ike: it will drop like that night
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[15:01] <Maxell> OZ1SKY_Brian: and how does the strong signal feel?
[15:01] <LeoBodnar> current prediction for B-11 and B-12 on the same map: http://ready.arl.noaa.gov/hypubout/1279_trj001.gif
[15:01] <Upu2> will be testing live stream soon
[15:02] <ike> tomorow will come back like http://en.wikipedia.org/wiki/AO-51
[15:02] <Upu2> eroomde, going to let you have main theatre
[15:02] <eroomde> Upu2, blimey
[15:02] <eroomde> wyzat?
[15:02] <eroomde> OHP?
[15:03] <LeoBodnar> Will there be split auditoriums ?
[15:03] <Rebounder> OZ1SKY_Brian: I've sent some mail here too
[15:03] <OZ1SKY_Brian> Maxell well in fact its not that strong, but the GP9 also have a very flat gain
[15:03] <OZ1SKY_Brian> Rebounder super
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[15:04] <Upu2> setup is way better than last year
[15:04] <Upu2> just sorting radio mikes
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[15:05] <eroomde> Upu2, sorry to be a broken record
[15:05] <eroomde> is there an OHP?
[15:05] <Upu2> we have three rooms
[15:05] <Upu2> yes
[15:05] <eroomde> ok cool
[15:05] <eroomde> splendid
[15:05] <eroomde> brilliant
[15:05] <eroomde> everything will be fine
[15:05] <Upu2> its 5 meters eude
[15:05] <eroomde> sorry for repeatedly bothering you
[15:05] <eroomde> ok
[15:05] <eroomde> um
[15:05] <eroomde> can i bother you one more time
[15:05] <Upu2> we are going to stream you
[15:05] <eroomde> i have never used an OHP before really
[15:06] <eroomde> can it take landscape transparencies?
[15:06] <Upu2> vga input
[15:06] <Upu2> its ok
[15:06] <OZ1SKY_Brian> Upu2 B-12 is now passing my launch site :-)
[15:06] <Upu2> there is a ohp thing hang on
[15:06] <eroomde> because i just realised i've drawn most of my diagrams in landscape
[15:06] <Upu2> cool :)
[15:06] <eroomde> although none of them are like fully crammed edge-to-edge
[15:06] <Babs> eroomde - we could all lay down to view your presentation
[15:06] <OZ1SKY_Brian> just, 10km from it
[15:07] <eroomde> yep that'd be the best way
[15:07] <Babs> there is always an alternative if one things laterally
[15:07] <Babs> *thinks
[15:07] <Upu2> fsphil and arko are trying to work it out
[15:07] <eroomde> ok
[15:07] <Upu2> it has pne
[15:07] <eroomde> sorry this is all a bit last minute. somewhat hampered talk prep conditions given this stupid proposal has to be in by the end of today
[15:08] <eroomde> I HATE PROPOSALS
[15:08] <Upu2> no probs
[15:08] <eroomde> since when was 'i'm good and i'm honest, trust me' no longer sufficient to get funding
[15:08] <Upu2> yes ohp wirks
[15:08] <Upu2> works
[15:08] <eroomde> ok great
[15:08] <eroomde> so can i have OHP and projector side by side?
[15:08] <eroomde> one diagram, one me typing code to represent the diagram
[15:09] <tweetBot> @AnthonyStirk: #ukhas http://t.co/J09xF10qNh
[15:09] <Upu2> that ed
[15:09] <mattbrejza> can you do the fancy thing where the stream can take the image from the screen with a little insert of the talker?
[15:09] <Upu2> yes
[15:09] <mattbrejza> :D
[15:09] <Upu2> vga
[15:09] <mattbrejza> not that ill be watching
[15:09] <eroomde> ok cool
[15:09] <eroomde> thanks
[15:10] <mattbrejza> a pdf with slides on a memory stick is fine?
[15:10] <eroomde> i'm totally breaking it by having ohp and projector, that's not gonna work well with picture-in-picture :)
[15:10] <eroomde> soooooorry
[15:10] <Upu2> we have 2 cameras
[15:10] <eroomde> ah ok great
[15:11] <eroomde> well i'll shut up and just make sure i have this lot finished for tomorrow
[15:11] <eroomde> it all looks great
[15:11] <eroomde> thanks Upu2
[15:11] <LeoBodnar> So will there be three lectures going at once?
[15:11] <eroomde> my understanding is it's all in the main lecture theatre until lunch
[15:11] <Laurenceb> LeoBodnar: looks like reception well into Monday then
[15:11] <eroomde> then 'workshops' from 2-4pm after lunch
[15:11] <eroomde> of which one is mine and there are a few others
[15:12] <eroomde> this is my understanding
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[15:12] <Babs> ping hixwork
[15:12] <LeoBodnar> Hopefully sorted for some time
[15:12] <Upu2> afk
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[15:13] <enkidu> Babs: have you played trem?
[15:13] <Babs> ? enkidu - what is it?
[15:14] <enkidu> if you dont know then you dint. okay :)
[15:16] <PE2G> Thunderstorm nearly overhead here. Decision to make, shut down everything or not.
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[15:17] <Babs> googled trem. the first few references make disturbng readings....
[15:17] <PE2G> B-12 coming down fast?
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[15:17] <OZ1SKY_Brian> B-12 going down?
[15:17] <Upu2> ok can people open stream page pls
[15:18] <Upu2> just connecting
[15:18] <mattbrejza> http://www.batc.tv/ch_live.php?ch=3&id=1010
[15:19] <Babs> OZ1SKY - re: b12 descent. if you were a balloon, wouldn't you like to eliminate all possibilities of visiting Norway or Sweden?
[15:19] <Babs> ;-)
[15:19] <OZ1SKY_Brian> Babs lol
[15:19] <mattbrejza> it seems to be a gps blip rather than a burst
[15:19] <OZ1SKY_Brian> Babs i like both countrys, so not really :-)
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[15:20] <Babs> nope, B12 received notice that there was a 3rd series of The Killing coming out, and decided to get down there pronto.
[15:20] <Upu2> can anyone confirm stream is black ?
[15:20] <G0TDJ_Steve> Have stream page ready Upu2
[15:20] <craag> mfa298: ping
[15:21] <Babs> OZ1SKY_Brian - i know both Norwegians and Swedes, I like both countries too :-)
[15:21] <wb8elk> There is a WebSDR radio in Skarnes Norway that will tune 434.500 or is it 434.495 for B12
[15:21] <wb8elk> here's the link to Skarnes Norway websdr radio: http://87.248.30.172:8901/
[15:21] <G0TDJ_Steve> Just the BATC testcard image on the streaming page Upu2
[15:21] <sa3azk> And im nice :D
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[15:22] <wb8elk> 434.4995 MHz for B12?
[15:22] <ike> yes
[15:23] <wb8elk> looks like it may be in range of the Skarnes Norway WebSDR radio soon... www.websdr.org
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[15:24] <mattbrejza> can we put F1 qually on during lunch? :P
[15:24] <OZ1SKY_Brian> sa3azk lets hope it will reach you also
[15:24] <G0TDJ_Steve> mattbrejza: You want everyone to fall asleep ;-)
[15:24] <OZ1SKY_Brian> sa3azk still a long way to JP73
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[15:26] <G0TDJ_Steve> Stream is up
[15:26] <chrisstubbs> No audio though
[15:27] <G0TDJ_Steve> Nope, no audio yet
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[15:27] <Upu2> ok dtteam
[15:27] <G0TDJ_Steve> Hi Anthony
[15:27] Action: G0TDJ_Steve waves
[15:27] <Upu2> stream up ?
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[15:27] <G0TDJ_Steve> Yep, up Upu2
[15:27] <mattbrejza> its squashed though
[15:28] <G0TDJ_Steve> Anthony, there is no audio
[15:28] <Upu2> working on it
[15:28] <G0TDJ_Steve> OK No worries
[15:29] <mattbrejza> is it 16:9 squished to 4:3 or just me?
[15:29] <G0TDJ_Steve> Looks like it mattbrejza
[15:29] <Upu2> fixed that
[15:29] <chrisstubbs> res is a bit low on the PC screen
[15:30] <G0TDJ_Steve> Oh, we're lagging a bit
[15:30] <mattbrejza> can you clear the OSD?
[15:31] <eroomde> stream link?
[15:31] <mattbrejza> http://www.batc.tv/ch_live.php?ch=3&id=1010
[15:31] <mattbrejza> do we get a laser pointer or stick or somthing?
[15:32] <Upu2> can someone work out how to turn osd off on canon za10 pls
[15:32] <G0TDJ_Steve> Looking Upu2 ...............
[15:32] <eroomde> mattbrejza, i'm bringing a pointer
[15:32] <mattbrejza> does it have a DISP button?
[15:32] <mattbrejza> ok eroomde :)
[15:32] <G0TDJ_Steve> Although you were pretty close when you went through the displays earlier
[15:32] <eroomde> it has the usual things
[15:32] <enkidu> anon OSD symbols disappears after ~10 seconds while the camera is in record mode.
[15:32] <eroomde> start pres, stop pres, black screen, forwards, backwards, laser
[15:33] <eroomde> oh that was not @ me
[15:33] <eroomde> i don't really need the laser pointer though really
[15:33] <Laurenceb> there is no audio
[15:33] <Upu2> working on audio
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[15:34] <G0TDJ_Steve> Upu2: Downloading manual for camera
[15:34] <LeoBodnar> Vidablick receiver on globaltuners is broken, it cuts in and out as if there is lose antenna connection or some other problem. Cuts out 50% of reception every few seconds. Almost unuseable
[15:34] <eroomde> ask ara to dance
[15:34] <eroomde> just to test the motion blur
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[15:35] <eroomde> amazing
[15:35] <eroomde> thanks ara
[15:35] <eroomde> very good dynamic response
[15:35] <G0TDJ_Steve> Upu2: Pressing DISP will turn off most of the icons and displays that appear automatically but will not remove control buttons ([FUNC.], [PHOTO], etc.) and onscreen displays that were turned on manually (for example, onscreen markers or the audio level meter).
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[15:37] <G0TDJ_Steve> Upu2 Did you see my last post?
[15:37] <Upu2> yep
[15:37] <Upu2> ta
[15:37] <G0TDJ_Steve> Roger
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[15:38] <eroomde> who is that by the projection screen?
[15:38] <eroomde> with the beard
[15:38] <G0TDJ_Steve> Would that be fsphil by any chance?
[15:39] <mattbrejza> nope
[15:39] <eroomde> nope
[15:39] <G0TDJ_Steve> Just a guess....
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[15:40] <G0TDJ_Steve> Well done Upu2
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[15:41] <OZ1SKY_Brian> are there any pictures of b11 or b12 somewhere?
[15:42] <ike> search for B-10
[15:42] <ike> B-11 is repaied B-10
[15:42] <chrisstubbs> http://leobodnar.com/balloons/
[15:42] <ike> Actually B-11 payload is recovered B-10 with repaired solar panels
[15:42] <ike> http://leobodnar.com/balloons/B-11/index.html
[15:43] <mattbrejza> whats hte earliest we can actually enter tomorrow? (i know the googel doc says 9.45)
[15:43] <adamgreig> that kinda answers your question then
[15:43] <mattbrejza> well
[15:43] <OZ1SKY_Brian> thanks
[15:43] <mattbrejza> is it correct?
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[15:45] <chrisstubbs> Something funky is going on with the BR feed
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[15:49] <G0TDJ_Steve> Upu- Is the WiFi connection available to everyone?
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[15:50] <mattbrejza> i expect there probably will be
[15:50] <mfa298> craag: pong
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[15:51] <ike> looks like B-12 is wining Oslo race
[15:52] <G0TDJ_Steve> mattbrejza: I'm hoping so. I'd like to do some social networking. It would be nice to set the connection up before I got there.
[15:53] <mattbrejza> you dont need internet to talk to people :P
[15:53] <G0TDJ_Steve> Stream a little intermittent at the mo
[15:53] <mfa298> G0TDJ_Steve: if not you'll just have to do some face to face social networking
[15:53] <G0TDJ_Steve> mattbrejza: Yes - good points
[15:55] <G0TDJ_Steve> Stream is a little bit intermittent
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[16:00] Nick change: danielsaul -> Guest45791
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[16:00] <Babs> I haven't been in a lecture theatre in 16 years, this is going to be quality. Can we still throw board rubbers at the speaker when their back is turned?
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[16:01] <mfa298> Babs: I assume the method now is to moan about them on facebook (although IRC would probably work well as well)
[16:01] <DL1SGP> LOGTIME!
[16:02] <mattbrejza> will the speaker be able to see irc?
[16:03] <Babs> mfa298 - we should moan about the speakers on irc in real time, so in true student form they are out of the joke from the outset
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[16:03] <Babs> (theoretically, I know that all speakers are going to be excellent)
[16:04] <Babs> who are in the batc picture anyway. can we have a roll call?
[16:05] <DL1SGP> what does the "unmergable" error in dl-fldigi stand for? I got that each time during the log tlm transmission
[16:05] <number10> Babs: I thought it was the other way round the speaker will throw board rubber at any the audience for not paying attention
[16:05] Nick change: Guest45791 -> danielsaul
[16:05] <mattbrejza> DL1SGP: i think the log messages have been blocked from getting new listeners
[16:06] <G0TDJ_Steve> No audio yet Anthony
[16:06] <DL1SGP> okies :) tu dr mattbrejza
[16:06] <mattbrejza> not a dr yet...
[16:06] <Babs> number10 - I think you are right. I may ask eroomde how to measure the distance to the horizon from a given altitude to kick things off.
[16:06] <chrisstubbs> stream locked up?
[16:06] <G0TDJ_Steve> Yep, here too chris
[16:06] <Babs> chrisstubbs - it is a joke at our expense
[16:07] <Babs> expect upu to moonwalk out of frame in 5 secs
[16:07] <chrisstubbs> haha
[16:07] <Babs> actually, on the picture i have he looks ready to moonwalk right now
[16:07] <LeoBodnar> These messages are already in the database and if they were shown again the whole map becomes screwed up. So they have been blocked. There will be new messages at some point in the future
[16:08] <eroomde> i will answer that question if people want to know
[16:08] <DL1SGP> mattbrejza: dr = "dear" not "doctor"
[16:08] <eroomde> i will literally remind them of pythagoras
[16:08] <mattbrejza> oh
[16:08] <Babs> eroomde - the whole point is not for you to answer the question, just to sigh and give a look of total disdain
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[16:09] <Babs> half of me is tempted to go into London tonight and try and spot people carrying around bits of polystyrene as identification, like the big X people put in their windows on the X-files
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[16:10] <Babs> *Babs realises half the people on here won't have seen either the X-files or Gillian Anderson in her prime*
[16:10] <Babs> hubba
[16:10] <G0TDJ_Steve> Seconded
[16:11] <G0TDJ_Steve> Stream dropped again here. I hope it's a problem my end...
[16:11] <mattbrejza> same here
[16:11] <mattbrejza> and my internet is on the decent side
[16:11] <mattbrejza> they might be playing about with settings
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[16:12] <G0TDJ_Steve> I hope that's it mattbrejza
[16:12] <mattbrejza> kinda need audio though
[16:12] <G0TDJ_Steve> Absolutely
[16:13] <Babs> its like if Charlie Chaplin did a lecture theatre comedy.
[16:13] <ike> http://goo.gl/maps/3lYTW websdr
[16:13] <mfa298> Babs: bits of polystrene or pink balloons ?
[16:13] <eroomde> pink gaffer tape
[16:13] <Babs> there is only one pink ballooner
[16:13] <eroomde> the name badges of choice at the first conference
[16:14] <Babs> I'd be looking for bits of blue polystyrene in hair, the thousand yard stare from two hours staring at code before realising = doesn't mean ==, that kind of thing
[16:15] <Babs> does anyone have the contemplative Plato-esque Stirk as their frozen stream picture?
[16:15] <G0TDJ_Steve> Yep
[16:15] <G0TDJ_Steve> He's a thinker....
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[16:17] <craag> mattbrejza: I'll be managing audio tomorrow
[16:17] <mattbrejza> ah
[16:17] <craag> on the IoW at the moment though
[16:18] <chrisstubbs> oo audio
[16:18] <Babs> All I can say is, I hope the Uni of Greenwich have got their IT equipment insured, some of the participants have form http://arkorobotics.com/blog/?p=17
[16:18] <G0TDJ_Steve> YAY!
[16:18] <G0TDJ_Steve> Got audio
[16:18] <oldswl> got audio
[16:18] <eroomde> linky
[16:18] <mattbrejza> its in the title
[16:18] <G0TDJ_Steve> LOL
[16:19] <chrisstubbs> pretty good for cameras
[16:19] <G0TDJ_Steve> A little low res
[16:19] <chrisstubbs> live stream from PC was a bit low res
[16:20] <chrisstubbs> OK if there is no small text on slides
[16:20] <eroomde> so just a 'mic' then
[16:24] <eroomde> slash nick speeehs nickname <enter>
[16:25] <wb8elk> Leo...which remote radio are you using?
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[16:30] <LeoBodnar> Vidablick on globaltuners but it is very glitchy
[16:30] <LeoBodnar> cuts in and out
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[16:37] <wb8elk> interesting to hear both B11 and B12 on Vidablick
[16:41] <OZ1SKY_Brian> yes in perfect offsync :-)
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[16:51] <Laurenceb> 5days flight, 120hours!
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[16:54] <Sven_> So wieder da
[16:54] <det__> auch da
[16:54] <LeoBodnar> Oh, a full working week.
[16:54] <eroomde> http://i1.ytimg.com/vi/j7jhb8_UPfw/hqdefault.jpg
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[16:55] <det__> I tried to capture B-11 visually with perfect cloudless blue sky, but did not see it, when I was nearly exactly underneath it.
[16:55] <SpeedEvil> :)
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[16:56] <SpeedEvil> It's going to depend on the background, and the reflections.
[16:56] <SpeedEvil> Binoculars may help
[16:56] <SpeedEvil> if the sun is in a position to reflect off the envelope, that will clearly make it more visible
[16:58] <det__> yes, I guess the correct sun-angle would have helped a lot.
[16:58] Action: cm13g09 returns to IRC
[16:58] <PE2G> Using binoculars I couldn't find B-12 either, when it passed overhead earlier today. Blue sky, no clouds
[16:59] <adamgreig> so small and far away
[16:59] <SpeedEvil> Blue sky overhead I think is going to be nearly impossible
[16:59] <det__> but then a good reflector
[16:59] <adamgreig> even directly overhead it's a foot large 9km or so away
[16:59] <SpeedEvil> adamgreig: It's a big balloon - more like two feet
[16:59] <adamgreig> and not exactly sitting still
[16:59] <SpeedEvil> And 3km
[16:59] <adamgreig> 3km?
[17:00] <SpeedEvil> err
[17:00] <adamgreig> not sure 2' is much different to 1' in this instance :P
[17:00] <SpeedEvil> ignore me
[17:00] <SpeedEvil> I'm not awake
[17:00] <SpeedEvil> If you can get to the sunward side about 45 degrees away i suspect that'd be best for a clear sky
[17:00] <SpeedEvil> Or silhouetted against dark clouds
[17:01] <LeoBodnar> 3' but still almost nothing, what is the angular dimension at such distance?
[17:01] <SpeedEvil> LeoBodnar: 1/10000th radian
[17:01] <LeoBodnar> 1m / 9000m = 10^-4 rad
[17:01] <LeoBodnar> hehe beat me to it
[17:01] <det__> hmmm, 45 degrees away, how far would that be then from the balloon?
[17:01] <LeoBodnar> x 1.4
[17:02] <det__> yes, should have known myself ;-)
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[17:03] <LeoBodnar> so 10^-4 rad ~ 6*10^-3 degrees
[17:03] <LeoBodnar> 1/100th the size of the Moon disk
[17:03] <det__> yes, should have known myself ;-) see you...
[17:03] <LeoBodnar> (or the Sun)
[17:03] <enkidu> I hope B-11 will enter NW wind area
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[17:03] <det__> dinner call for me... must go now
[17:03] <LeoBodnar> see you later!
[17:04] <LeoBodnar> Am I right SpeedEvil ?
[17:04] <enkidu> B12 is loosing power due to sunset
[17:04] <SpeedEvil> LeoBodnar: It's smaller than all of the planets
[17:04] <SpeedEvil> (pluto is not a planet)
[17:04] <LeoBodnar> yeah will probably incommunicado again
[17:04] <LeoBodnar> *go
[17:04] <OZ1SKY_Brian> what are the solar panel values, charge voltage?
[17:04] <LeoBodnar> yes
[17:05] <SpeedEvil> http://en.wikipedia.org/wiki/Angular_diameter - I make it .3 arc minutes.
[17:05] <OZ1SKY_Brian> volt or amps?
[17:05] <LeoBodnar> Volts
[17:05] <LeoBodnar> see you in a bit
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[17:05] <SpeedEvil> Err - derp
[17:05] <SpeedEvil> It's the same size as jupiter or saturn
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[17:06] <SpeedEvil> more commonly saturn
[17:06] <adamgreig> huh, so big as that?
[17:06] <adamgreig> shame it's not reflecting quite as much sunlight
[17:07] <SpeedEvil> If you're not on the sunward side -it'll be reflecting mostly sky
[17:07] <SpeedEvil> and - well - if the sky is clear - that's going to be blue on blue
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[17:11] <enkidu> right before sunset is best tibe
[17:11] <enkidu> time*
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[17:12] <OZ1SKY_Brian> B-12 now left Denmark
[17:12] <DL1SGP> Farewell B-12
[17:13] <Laurenceb> balloon is heading to Trollhattan
[17:13] <Laurenceb> heh
[17:13] <SpeedEvil> :)
[17:14] <SpeedEvil> how many users were here at the start of the week?
[17:14] <enkidu> unfortunately, it will stop transmission when solar power will be down ;/
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[17:14] <DL1SGP> :(
[17:14] <enkidu> battery wont last long
[17:14] <enkidu> internal resistance too high
[17:15] <OZ1SKY_Brian> whats the min voltage it will run on?
[17:16] <enkidu> 1.8 is minimal for cpu
[17:16] <OZ1SKY_Brian> and the tx?
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[17:19] <enkidu> also
[17:19] <PE2G> What about sunset time? Somewhat later there than at lower latitudes, I suppose
[17:19] <OZ1SKY_Brian> ok thanks
[17:20] <Laurenceb> http://www.daylightmap.com/index.php
[17:20] <batchoy> Is anyone else having problems with getting permission out of the CAA for balloon releases?
[17:21] <OZ1SKY_Brian> sunset for göteborg is 1956 cet
[17:21] <SpeedEvil> PE2G: in 20 minutes after 0.56V yesterday, it was at 0.29V - basically no power from the sun
[17:22] <SpeedEvil> So maybe another 15-20 min of sun tops
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[17:22] <SpeedEvil> The solar panels are horiontal - so will perform very poorly near the horizon
[17:22] <PE2G> Ok. So we have to rely on a restart in daylight
[17:23] <Laurenceb> the low temperatures might actually be helping a bit
[17:23] <SpeedEvil> Laurenceb: yeh - -2mV/c
[17:23] <Laurenceb> it should be getting a bit more charge in the battery too
[17:23] <enkidu> PE2G: sometimes freezing discharged lipo makes them recover at lower capacity
[17:23] <Laurenceb> as the chemistry seems to shift with temperature
[17:24] <DrLuke> souns like loadsa assumptions
[17:24] <Laurenceb> heh
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[17:24] <DrLuke> ;)
[17:24] <Laurenceb> it was quite cold all day today
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[17:28] <PE2G> After two days B-12 restarted today, maybe it can do that again
[17:28] <enkidu> not really after two days
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[17:29] <enkidu> first it restarted over pyrenees, but we had no receiver there
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[17:30] <PE2G> So it restarted every morning?
[17:30] <DrLuke> how do you know it restarted then?
[17:30] <enkidu> it had to
[17:30] <enkidu> just like today
[17:30] <DrLuke> why
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[17:31] <enkidu> its liku plugging mouse in usb port - is became powered
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[17:31] <SpeedEvil> $$B-12,1,080746,50.39,5.8416,9319,8,-6,3.48,0.6*2de1
[17:31] <SpeedEvil> WAs the first line this morning apparantly
[17:32] <SpeedEvil> so it is apparantly resetting - unless it goes into some sort of deep power save 'off' mode
[17:32] <enkidu> it doesnt even stored its ram contents
[17:32] <SpeedEvil> We don't know the code though, it could intentionally turn off
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[17:33] <SpeedEvil> Anyway - turns off or crashes or whatever - the battery discharges to a level where it is too low for the micro to draw any current - but is sufficitrn for the solar panel to charge it once light appears
[17:34] <SpeedEvil> Oh
[17:34] <SpeedEvil> is it a protected cell?
[17:35] <DrLuke> maybe the micro has a brown out detector and intentionally switches off
[17:35] <PE2G> Sunrise was at 04:58 UTC over Southern NL this morning (at ground level)
[17:35] <DrLuke> before it browns out
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[17:36] <PE2G> So it restarted 3 hrs after sunrise at ground level
[17:36] <ike> $$B-12,1, - first packet, 080746 - UTC time, 3.48,0.6 battery and solar voltage?
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[17:37] <SpeedEvil> sunrise will have basically no output for a while - simply as it's so close to the horizon and the solar cells are flat
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[17:38] <enkidu> probably some condition on charger
[17:39] <PE2G> Heads up every morning, 3 hrs after sunrise at ground level!
[17:40] <SpeedEvil> enkidu: that too - if there is some parasitic load, it has to exceed that
[17:41] <enkidu> I see some noise similar to RTTY modulation. has latvian space shuttle crashed yet?
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[17:44] Nick change: KipK -> KipK_away
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[17:46] <enkidu> as I said: dick over europe.
[17:47] <SpeedEvil> heading that way.
[17:47] <SpeedEvil> Violates TPPB though.
[17:48] <enkidu> tppb?
[17:48] <SpeedEvil> http://www.b3ta.com/links/B3tan_reacts_to_telling_off
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[17:52] <OZ1SKY_Brian> how much power does the b11 and 12 transmit?
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[17:54] <LeoBodnar> 10mW OZ1SKY_Brian
[17:54] <OZ1SKY_Brian> thanks
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[17:56] <ike> how often?
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[17:56] <ike> every 3 sec beep and ever 3 min GPS data?
[17:57] <LeoBodnar> ike: GPS every 5 minutes now, beeps are ~ 3 sec apart
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[17:59] <ike> LeoBodnar 10x for the info
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[17:59] <LeoBodnar> pleasure
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[18:01] <chrisstubbs> Has anyone noticed this line in the ofcom frequency allocation table before: “[Amateur] Users must accept interference from ISM users”
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[18:02] <chrisstubbs> Dosent seem to apply tot he 434mhz ism band though
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[18:04] Nick change: KipK_away -> KipK
[18:04] <PE2G> I just lost B-11's signal. This concludes 21 hrs of non-stop Bee monitoring.
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[18:07] <LeoBodnar> Well done PE2G !
[18:08] <chrisstubbs> PE2G, Nice work :) You never know it might come around for another lap in a few days ;)
[18:08] <enkidu> I hope that band here is not too crowded for reception
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[18:09] <PE2G> LeoBodnar: Many thanks to you again for these exceptional flights!
[18:09] <ike> B-12 Temperature: -26C Battery: 3.64 V Solar Panel: 0.47 battery is droping fast
[18:09] <LeoBodnar> :)
[18:09] <SpeedEvil> LeoBodnar: Is it a protected battery?
[18:09] <LeoBodnar> from what ?
[18:10] <SpeedEvil> LeoBodnar: undervoltage - does it have protection circtuiry
[18:10] <SpeedEvil> on reflection - that's probably a silly question
[18:11] <PE2G> chrisstubbs: yes, I hope so. I'll be ready for it :)
[18:12] <LeoBodnar> No, it was assumed that night use won't deplete it (and it did)
[18:12] <ike> LeoBodnar people are asking the same questions about RF, battery, payload over and over, can't you put some info on your site http://leobodnar.com/balloons/B-11/
[18:13] <LeoBodnar> I will I am just trying to do a few things at once :)
[18:14] <ike> ok ;)
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[18:15] Action: SpeedEvil guesses LeoBodnar to be assembling more payloads.
[18:16] <LeoBodnar> actually making some meal
[18:16] Action: mfa298 wonders if B-13 will be launched pre or post conference
[18:16] <ike> LeoBodnar he is tracking B11 and B12 via global tuners
[18:17] <LeoBodnar> I can see Main Bus B undervolt coming back
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[18:19] <SpeedEvil> looks like.
[18:19] <ike> 10 minutes ago B-12 Temperature: -26C Battery: 3.64 V Solar Panel: 0.47 ; now it's Temperature: -31C Temperature: -31C Solar Panel: 0.32
[18:19] <ike> I think battery does nothing
[18:19] <enkidu> it does
[18:19] <SpeedEvil> Not good to have a battery whos capacity is measured in uF.
[18:19] <enkidu> ballast
[18:20] <SpeedEvil> It is actually working
[18:20] <SpeedEvil> To a very small degree
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[18:20] <enkidu> maybe really supercapacitor would be better
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[18:20] <SpeedEvil> If the peak power voltage is .32V, you have basically no power whatsoever coming from the solar cells
[18:20] <ike> some caps are really crappy at 0*C temp
[18:20] <SpeedEvil> under .1% of nominal
[18:20] <Rebounder> I've a 9 el yagi pointing west in sthlm. Will see if I can pick it up in a while.
[18:21] <enkidu> ike: some of them handle -40
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[18:22] <SpeedEvil> wierd.
[18:22] <enkidu> they are using special electrolytes that will freeze at -90 (maybe)
[18:22] <SpeedEvil> is this just 'I'm falling over' from the GPS
[18:23] <ike> Battery: 3.01 V Solar Panel: 0.23
[18:23] <ike> LeoBodnar does it support firmware update over RF?
[18:23] <enkidu> old method of producing electrolytic capacitor was conditioning aluminium plate in NH4NO3 solution
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[18:24] <OZ1SKY_Brian> Hope SM3ULC will catch something soon
[18:24] <LeoBodnar> no ike
[18:25] <LeoBodnar> This is just a bad LiPo sample - used with unknown history, not bad by design.
[18:25] <ike> LeoBodnar http://processors.wiki.ti.com/index.php/EZ430-Chronos?DCMP=Chronos&HQS=Other+OT+chronoswiki#Wireless_Update_.28RF_BSL.29
[18:26] <ike> The Wireless Update feature allows you to change the firmware on the Chronos wirelessly. There will be no need to open the enclosure to upgrade the program in use. :)
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[18:28] <tweetBot> @thecraag: See you in 2 days IoW.. UKHAS conf tomorrow! #ukhas http://t.co/qhmr62ohYb
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[18:29] <enkidu> LeoBodnar: what is current drain of your payload?
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[18:30] <LeoBodnar> About 20mW on average
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[18:31] <enkidu> ampers?
[18:31] <SpeedEvil> one cell, so 6mA or so at 3V
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[18:33] <enkidu> assume 10mA
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[18:35] <OZ1SKY_Brian> dinnertime, back asap
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[18:41] <enkidu> 120F supercap would be enough for 7 hours
[18:42] <ike> I think that B-11 is better than 120F supercap
[18:42] <ike> I think that B-11 battery is better than 120F supercap
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[18:43] <enkidu> B12 is not for sure ;)
[18:43] <LeoBodnar> B-11 is perfectly suitable for a few days flight. For which it has been slated.
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[18:44] <enkidu> I think that - if google is not joking witl Loon - they will use supercaps instead of cells
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[18:45] <LeoBodnar> You can just use regular tantalum cap and shut down for the night.
[18:45] <enkidu> not really. also, 10F sc would be enough for "sleep mode" without transmitting
[18:46] <enkidu> company I worked for produced RF meter systems that lasted 10 years on single battery
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[18:48] <enkidu> 50F 2.7V is like 4$
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[18:48] Nick change: KipK -> KipK_away
[18:49] <LeoBodnar> What is the weight of it?
[18:50] <enkidu> they claim its 20grams, but I doubt it
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[18:51] <enkidu> similar one is 10grams, same dimensions
[18:51] <enkidu> same cap
[18:51] <LeoBodnar> enkidu: B-12 payload including antenna and enclosure is 8.5 grams
[18:52] <enkidu> I think it is probably due to packaging, not device itself
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[18:52] <LeoBodnar> battery was 2.5 grams
[18:53] <LeoBodnar> B-11 battery is 4 grams
[18:54] <LeoBodnar> Weight is very critical
[18:54] <enkidu> probably using low power techniques would allow to use smaller caps
[18:54] <enkidu> I know it is
[18:54] <LeoBodnar> If it wasn't for weight I'd have used LiFePO4s (my second choice)
[18:55] <navrac_home> either that or get a bigger balloon
[18:55] <enkidu> cap doesnt matter if it is +40 or -40
[18:55] <enkidu> battery do
[18:56] <LeoBodnar> I like the challange of keeping it all small
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[18:57] <enkidu> Id like to create something that will be able to fly v.long and transmit
[18:57] <navrac_home> so did i - but you rather took it to the limit
[18:57] <navrac_home> i thought i was doing well with 20g with 2 solar cels
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[18:58] <LeoBodnar> enkidu: are the scaps you are suggesting from Panasonic?
[18:59] <LeoBodnar> so do I enkidu & navrac_home
[18:59] <enkidu> maxwell etc
[18:59] <enkidu> there are some producers around
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[19:00] <LeoBodnar> My thinking was: supercaps have at least 50% lower power density than LiPos and my goal was only a few cycles lifespan (4 days.)
[19:01] <LeoBodnar> Of course if you are building something that is supposed to fly for a month this would be completely new kettle of fish!
[19:01] <enkidu> you hold record in amateur balloon flight
[19:01] <SpeedEvil> Were they different sorts of battery?
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[19:01] <LeoBodnar> Starting from envelope survival, He diffusion etc
[19:01] <navrac_home> i think your next challenge should be to wait till the winds are in the right dirextion then launch a few on the us repeater frequencies...
[19:02] <LeoBodnar> Laurenceb: sorry for diffusion, maybe that was a wrong term
[19:02] <enkidu> navrac_home: would be hard. winds will be blowing from NA to EU for many weeks at reast
[19:02] <enkidu> least*
[19:02] <LeoBodnar> I am working on it (it needs a full UK licence, etc)
[19:02] <WillTablet> Wasn't someone planning to use bird netting to make a balloon float for longer? Did that work?
[19:03] <LeoBodnar> There were a few opportunities last month to reach Alaska within 4-5 days
[19:04] <LeoBodnar> But let's not move too quickly or arrogantly
[19:04] <mfa298> WillTablet: that's something that craag was thinking of testing but I don't think he's had time yet
[19:04] <navrac_home> no - they were in the ism band when thy left england... aprs weighs too much so you need a way of drawing attention in the states if they arrive
[19:04] <LeoBodnar> I want to try HF comms
[19:04] <SpeedEvil> WillTablet: yes - but this was basically the aim
[19:04] <navrac_home> the onl license free frequencies are really noisy
[19:04] <SpeedEvil> WillTablet: nobody realised that a normal large balloon could superpressure like this at that time - so latex + net was the thoguht
[19:05] <LeoBodnar> My current tracker will do APRS without any modification, Just needs 2m 1/4 wave GP antenna
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[19:05] <SpeedEvil> hah
[19:05] <WillTablet> Superpessure?
[19:05] <LeoBodnar> I still want craag to do netted latex floater
[19:05] <SpeedEvil> WillTablet: Where the balloon envelope stops the balloon from expanding - and keeps it at a constant pressure altitude
[19:05] <navrac_home> blimey aprs as well...
[19:06] <WillTablet> Ok
[19:06] <mfa298> LeoBodnar: does it need any other matching to change between 2m and 70cms
[19:06] <LeoBodnar> I was going to do it as well but my friend in the office I am showing these projects to objects to using nets
[19:06] <mfa298> could be interesting if it could start off doing domino on 70cms and then do bits of aprs when it's in an allowed country
[19:08] <enkidu> found it
[19:08] <navrac_home> probably would need more than 10mw
[19:08] <ike> 144.390 MHz 144.575 MHz 144.660 MHz 144.800 MHz 144.930 MHz 145.175 MHz 145.570 MHz 145.525 MHz are you going to use single APRS frequency?
[19:08] <LeoBodnar> In theory you can use 2m GP for 20cm telemetry. It's not going to be spectacular but it would work. Unfortunately this means LPF has to include 70cm band so it will either have to have switchable LPF or allow higher 3rd harmonic content on 2m
[19:08] <mfa298> 144.800 is standard in europe for aprs, and 144.390 in usa
[19:09] <LeoBodnar> Considering APRS is only going to be 20mW it's not the end of the world.
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[19:09] <LeoBodnar> Maybe 100mW
[19:10] <mfa298> a 2m GP antenna should be a reasonable match on 70cm (or failing that go for a dipole)
[19:10] <LeoBodnar> ike: it is frequency agile so it will switch the freq depending on the region it is flying over
[19:10] <ike> ISS APRS?
[19:11] <LeoBodnar> Yeah, antenna is not a worry. They don't have to be perfect 50Ohm impedance as there is no feeder
[19:11] <LeoBodnar> I think jcoxon is playing with that but it needs 1-5W from what I have heard.
[19:11] <mfa298> could make for an interesting payload if it could switch between 2m aprs and 70cm Domino with the same tx.
[19:12] <hojo1690> Hey gang. Sorry to interrupt. I'm interested in getting a balloon project going with the ham club here at Cornell U. I'd love to do a simple APRS beaconing balloon to start. Might you have good URLs to suggest for resources?
[19:12] <ike> http://www.aprs.org/iss-faq.html
[19:12] <enkidu> I am only afraid, that hunting for 1mW transmitter would be pain in the neck
[19:12] <LeoBodnar> I am hoping to do that mfa298 as 70cm only temporary while flying over UK and few other countries that not allow airborne AR
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[19:13] <mfa298> hojo1690: for aprs in USA you need an amateur radio license.
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[19:13] <mfa298> there are a few americans on here although currently several of them are in the UK
[19:13] <ike> not only in USA
[19:13] <LeoBodnar> hojo1690: http://www.arhab.org maybe
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[19:15] <hojo1690> Thanks. I've got the arhab link. Hadn't thought of looking right on APRS. Regarding licensing, not a problem. I'm licensed, as are most club members.
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[19:16] <mfa298> there's quite a lot of information on google for aprs, there are also some off the shelf solutions for arps although if it's going on a balloon you need to choose a suitable gps.
[19:17] <hojo1690> I'm mostly trying to find resources on chips/parts to assemble a package with a transmitter, gps, and aprs capabilities. I could start by buying a tt3 or tt4 package from bionics, but I thought it might be fun to try and put it together from scratch.
[19:17] <ike> a suitable gps - what do you mean?
[19:17] <mfa298> most stop reporting somewhere between 12 and 18km
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[19:18] <Lunar_Lander_> hello
[19:18] <mfa298> most latex balloons go up to at least 30km
[19:18] <Lunar_Lander_> hi OZ1SKY_Brian
[19:18] <ike> aren't all supposed to stop at 18KM
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[19:18] <daveake> no
[19:19] <mfa298> there are gps modules that work up to 50km
[19:19] <daveake> they're all supposed to not stop at 18km, but some get it wrong
[19:19] <ike> B-12 Temperature: -34C Battery: 2.78 V
[19:20] <tweetBot> @AnthonyStirk: Ready for conference ! #ukhas http://t.co/aYyRbymrHz
[19:20] <OZ1SKY_Brian> Lunar_Lander_ hi
[19:20] <Lunar_Lander_> how are you?
[19:20] <OZ1SKY_Brian> tracking B-12, but its getting very weak
[19:21] <Lunar_Lander_> yeah
[19:21] <Lunar_Lander_> did that too earlier
[19:21] <Lunar_Lander_> :)
[19:21] <LeoBodnar> hojo1690: http://kt5tk.wordpress.com/tag/pecan/
[19:21] <enkidu> 2.7V
[19:21] <OZ1SKY_Brian> would be nice to get sm3ulc back online
[19:21] <ike> he have gps antenna near TX connector
[19:22] <ike> B10/11/12 is better
[19:22] <SpeedEvil> Still tooling along at 60km/h or so
[19:22] <SpeedEvil> b12
[19:22] <LeoBodnar> oh, sped up then?
[19:23] <SpeedEvil> Maybe just in range of sm3ulc when it wakes up
[19:23] <SpeedEvil> - that's if I'm reading the scales right
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[19:25] <LeoBodnar> Next log transmission will finish B-12 nicely :)
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[19:25] <LeoBodnar> In 35 min - if it won't die earlier
[19:25] <OZ1SKY_Brian> trying to hail some swedes, not much luck though
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[19:26] <ibanezmatt13> Good evening
[19:26] <hojo1690> LeoBodnar: Thanks. Great stuff!
[19:26] <Rebounder> Still nothing on the display here. Have a fcd to the yagi in the attic.
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[19:27] <ibanezmatt13> Upu-: Where should we head for tomorrow for the conference? I know it's at Grenwich University but that's quite a big place...
[19:27] <enkidu> B11 took longer way
[19:27] <OZ1SKY_Brian> Rebounder still too far away from you
[19:27] <ibanezmatt13> oh wait
[19:27] <LeoBodnar> Has Latvian balloon been recovered?
[19:27] <ibanezmatt13> directions on wiki, nevermind Upu- :)
[19:29] <Rebounder> OZ1SKY_Brian: possibly so yes
[19:29] <chrisstubbs> there is a marker on spacenear.us too
[19:29] <ike> B-11 Altitude: 7116 m Rate: -7.3 m/s
[19:30] <enkidu> LeoBodnar: dont know, no signal anyways
[19:30] <ike> B-12 Battery: 2.61 V
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[19:32] <SpeedEvil> LeoBodnar: 35 minutes - or rather sooner
[19:33] <Rebounder> OZ1SKY_Brian: wife snooring beside in couch to probably possibly to spende a little time to arrange antenna inte beter place.. :)
[19:34] <OZ1SKY_Brian> Rebounder LOL good idea, cease the chance now
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[19:34] <LeoBodnar> I bet on 20:07 SpeedEvil
[19:34] <LeoBodnar> UTC
[19:34] <crash_18974> Did B-11 just go dark?
[19:34] <SpeedEvil> It's already transmitted another point
[19:34] <OZ1SKY_Brian> B-12 2.66V
[19:35] <OZ1SKY_Brian> B-11 still alive
[19:36] Nick change: KipK_away -> KipK
[19:36] <DL1SGP> :)
[19:37] <crash_18974> all there she is :)
[19:37] <crash_18974> all=ah!
[19:37] <ike> B11- Altitude: 8747 m Rate: 0.3 m/s
[19:38] <LeoBodnar> GPS does throw some wobbles from time to time.
[19:39] <ike> maybe you TX first gps fix
[19:39] <crash_18974> yes, that was definitely a wobble
[19:39] <ike> if you let is settle
[19:40] <ike> it will be more precise, or you can filter GPS wobbles
[19:40] <LeoBodnar> It has something to do with putting GPS to sleep. KT5TK had exactly the same problem. It needs some sanity filter to remove sharp jumps.
[19:40] <OZ1SKY_Brian> data again from B-12
[19:40] <OZ1SKY_Brian> 2,52v
[19:40] <OZ1SKY_Brian> 2,46 last
[19:41] <ike> Battery: 2.46 V
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[19:43] <ike> B11 Altitude: 8782 m Rate: 0.1 m/s
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[19:44] <LeoBodnar> x-f website plug for newcomers here: http://x-f.lv/dev/habitat-graphs/payload/055a7e5147d3a7258f07a652d4cda64c
[19:44] <SpeedEvil> https://maps.google.co.uk/maps?q=mellerud&ie=UTF-8&ei=Jy4qUtTBKq6e7Abp7YB4&ved=0CAoQ_AUoAg - where b12 is going
[19:45] <LeoBodnar> Spelerud (sp?)
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[19:46] <ike> Battery: 2.67 V
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[19:46] <SpeedEvil> odd - i wonder if that's the reference going out of regulation
[19:46] <SpeedEvil> Rathe rthan the battery voltage actually ridsing
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[19:47] <Rebounder> SpeedEvil: Mellerud, the place to be!
[19:47] <LeoBodnar> GPS consumes unpredictable amount of current on each wake up and battery recovers a little but - to an unpredictable level.
[19:48] <SpeedEvil> Guess so
[19:48] <LeoBodnar> No reference should be OK.
[19:49] <LeoBodnar> Did I sound confident then? XD
[19:49] <OZ1SKY_Brian> might have found one to track in sweden, x-figers
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[19:50] <OZ1SKY_Brian> B-12 going here
[19:50] <LeoBodnar> Mellerud - the place 2 Bs
[19:50] <OZ1SKY_Brian> Dont hear B-12 anymore
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[19:52] <SpeedEvil> :/
[19:52] gb73d (gb73d@79-68-253-120.dynamic.dsl.as9105.com) left irc: Quit: Look out Dave she's gonna blow !
[19:52] <LeoBodnar> Can't hear it either
[19:52] <LeoBodnar> Time for a Hysplit
[19:53] <Rebounder> Hope AGJ can keepit for a while
[19:53] <OZ1SKY_Brian> SM5DIC reports no signal also, so its ZZZZzzzz
[19:54] <Rebounder> OZ1SKY_Brian: where's sm5dic?
[19:54] <OZ1SKY_Brian> RebounderJO89RT
[19:54] <OZ1SKY_Brian> sri JO89JT
[19:55] <OZ1SKY_Brian> just outside västeräs
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[19:56] <Rebounder> aha
[19:56] <DL1SGP> Tracked B-11 for a bit more than 7h now not hearing it any more at my QTH, have a save trip dear B-11 :D
[19:57] <LeoBodnar_> B-12 is going to Poland http://leobodnar.com/balloons/B-12/NOAA.gif
[19:57] <Lunar_Lander_> xD https://en.wikipedia.org/wiki/Police,_Poland
[19:58] <Lunar_Lander_> just saw that on the tracker map
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[19:58] cuddykid (~acudworth@host-78-145-108-79.as13285.net) joined #highaltitude.
[19:59] <LeoBodnar_> Who will be the first to put a teddy bears on coats of arms?
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[20:00] <LeoBodnar_> *bear
[20:00] <OZ1SKY_Brian> At least we got the last tx from B-12 before ZZZzzz
[20:00] <OZ1SKY_Brian> SM5DIC will have a listen for it tomorrow
[20:00] <Lunar_Lander_> yeah :)
[20:01] <LeoBodnar_> That eagle looks quite menacing
[20:02] <ike> did B-11 send log?
[20:02] <OZ1SKY_Brian> it is now
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[20:04] <OZ1SKY_Brian> B-11 log tx ended now
[20:05] <LeoBodnar_> It probably feels very tired
[20:05] <LeoBodnar_> And cold
[20:05] <PE2G> But proud
[20:06] <LeoBodnar_> Is it going to overtake B-12 at least on the map?
[20:06] <SpeedEvil> And strangely horny.
[20:06] <ike> like holder of the firs and second price of longest hobby HAB
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[20:06] <ike> proud part, not the horny one
[20:07] <chrisstubbs> What was superman doing on the map yesterday?
[20:07] <LeoBodnar_> They will probably come together on the map. I shall take a screenshot at that moment.
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[20:08] <LeoBodnar_> Two brothers
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[20:08] <Laurenceb_> LeoBodnar_: i had a devious plan
[20:08] <OZ1SKY_Brian> Remember to skip B-13 and go on to B-14 :-)
[20:08] <Laurenceb_> use stm32l1 with 16mhz vctcxo
[20:08] <Laurenceb_> then use MCO to clk the HF
[20:08] <Laurenceb_> s/clk/drive class E amp
[20:09] <LeoBodnar_> Keep going Laurenceb_ :)
[20:09] <Laurenceb_> annoyingly 28mhz seem too high?
[20:09] <LeoBodnar_> Will 13.560 MHz do?
[20:10] <ike> and you will use payload-balloon wire as an antenna?
[20:10] <Laurenceb_> will the silabs clk off that?
[20:10] <Laurenceb_> wait i know
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[20:10] Nick change: Geoff-G8DHE_ -> Geoff-G8DHE-M
[20:10] <Laurenceb_> 13.560Mhz vctcxo -> stm32l1 -> pll in stm32 -> moc -> silabs or class E amp
[20:11] <enkidu> new antenna just mounted
[20:12] <LeoBodnar_> PLLs are usually phase-noisy in MCUs but who knows?
[20:12] <LeoBodnar_> I had this idea for dsPIC33s
[20:12] <Laurenceb_> LeoBodnar_: just need to way to stabilise it for dominoex
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[20:12] <Laurenceb_> its clean enough for ethernet...
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[20:12] <ike> Laurenceb_ you bitbang ethernet?
[20:12] <LeoBodnar_> YOu can generate pretty much few 100 Hz steps by tweaking the coefficients
[20:12] <Laurenceb_> but that doesnt need to be very clean
[20:13] <Laurenceb_> hmm
[20:13] <Laurenceb_> wonder if anyone has looked at MCO jitter
[20:13] <Laurenceb_> i suspect you could use another xtal on the RTC oscillator to discipline it
[20:13] <LeoBodnar_> The problem was PLL coeffients are not synchronously updated and it creates horrible spectral splat
[20:13] <Laurenceb_> yeah
[20:13] <Laurenceb_> so use vctcxo and dac
[20:13] <Laurenceb_> stm32l1 has DAC
[20:14] <Laurenceb_> but thats horrible and analogue unless its disciplined
[20:14] <Laurenceb_> i guess you could use the gps 1pps to do it..
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[20:14] <Laurenceb_> but thatd be pretty poor
[20:14] <LeoBodnar_> I use CDCE913 PLL chip to generate DominoEX 4 signal http://www.ti.com/lit/ds/scas849e/scas849e.pdf
[20:15] <LeoBodnar_> Sorry if I sound like an old record - I can't remember whom I said what and when :)
[20:15] <LeoBodnar_> It's good enough to get sub 0.2Hz freq spacing
[20:15] <Laurenceb_> ah cool
[20:15] <Laurenceb_> it wasnt me
[20:16] <Laurenceb_> 27mhz dipole above the payload?
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[20:16] <jcoxon> evening all
[20:16] <LeoBodnar_> And the output is good enough to be used as a PA directly into antenna for ISM device
[20:16] <OZ1SKY_Brian> Hi James
[20:16] <LeoBodnar_> hello jcoxon
[20:16] <enkidu> Laurenceb_: why not?
[20:16] <fsphil> haha, still going
[20:17] <LeoBodnar_> Yeah Laurenceb_ why not?
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[20:17] <Laurenceb_> i was wondering how to feed it
[20:17] <enkidu> there used to be halfwave mast for 227kHz
[20:17] <Laurenceb_> twisted pair?
[20:17] <enkidu> so why not few meters of line?
[20:17] <jcoxon> LeoBodnar_ another day, more ballooning
[20:17] <Laurenceb_> heavy
[20:18] <Geoff-G8DHE-M> LeoBodnar, Is going to fly a heavy balloon ? I don't believe it!
[20:18] <Laurenceb_> yeah me neither
[20:19] <LeoBodnar_> I have actually sent one balloon up on 13.560MHz but the signal was very very weak and silly me didn't investigate.
[20:19] <Laurenceb_> that Ti chip looks pretty handy
[20:19] <jcoxon> LeoBodnar_, so B11 is still going!
[20:19] <Laurenceb_> but i like the simplicity of MCO :P
[20:19] <LeoBodnar_> just awg36 wire would work
[20:19] <Laurenceb_> whats the impedance?
[20:19] <LeoBodnar_> yes jcoxon why the heck not?
[20:19] <fsphil> not showing any signs of stopping
[20:19] <enkidu> jcoxon: B12 also reappeared
[20:19] <Geoff-G8DHE-M> bear in mind you won't have a ground plane at HF
[20:19] <ike> you can send CW morse code http://www.ebay.com/itm/5x-27MHZ-OSC-HALF-Active-Crystal-Oscillator-OSC-square-DIP-/170872075016?pt=LH_DefaultDomain_0&hash=item27c8c4f308
[20:19] <jcoxon> yeah i saw enkidu , very cool
[20:20] <LeoBodnar_> Ah can't remember, bad but workabe
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[20:20] Action: Laurenceb_ realises he doesnt know how to work out twisted pair impedance
[20:20] <enkidu> why were wind predictions so fail...
[20:20] <jcoxon> hey OZ1SKY_Brian
[20:20] <jcoxon> hows everything?
[20:20] <Laurenceb_> ive used a trailing like of coax with the shield stripped for 434mhz
[20:20] <Laurenceb_> but thatd be heavy for 27mhz
[20:20] <OZ1SKY_Brian> jcoxon fine here, finaly something to track again, LOL, how are things your way?
[20:21] <enkidu> Laurenceb_: but imagine range
[20:21] <Laurenceb_> yeah
[20:21] <Laurenceb_> theres got to be a way to make it work..
[20:22] <jcoxon> OZ1SKY_Brian, yeah not bad at all, UKHAS conference tomorrow
[20:23] <OZ1SKY_Brian> jcoxon yes have a nice day, i would like to have been there. I tryed to find a why, but it was impossible unless i had 2-3 hotel days, no returnflights saturday or sunday.
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[20:24] <jcoxon> OZ1SKY_Brian, you can watch the stream!
[20:24] <OZ1SKY_Brian> jcoxon yes that i will do
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[20:24] <jcoxon> LeoBodnar_, you've managed to unite the listening network of europe
[20:25] <fsphil> the great HAB tour
[20:26] <LeoBodnar_> roll up, roll up!
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[20:27] <Laurenceb_> LeoBodnar_: looks like you could use a DIY microstrip to feed an antenni
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[20:27] <Laurenceb_> using copper or alu foil
[20:27] <Laurenceb_> not sure if ive ever seen this done
[20:28] <LeoBodnar_> Microstrip at 13MHz?!
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[20:29] <JDat> Hello!
[20:29] <Laurenceb_> for the antenni feed, it has to be ~3m long
[20:29] <Sven_> hello
[20:29] <JDat> Sorry for silence about Zinoo2
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[20:29] <JDat> Test flight was 90% sucessfull
[20:29] <enkidu> was it recovered?
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[20:30] <JDat> 1) problems with Ground station lat lon settings
[20:30] <LeoBodnar_> Tell us more JDat
[20:30] <JDat> 2) problems with ground plane antenna and we lost telementry data in altitude above 1 KM
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[20:31] <JDat> 3) Zinoo2 wasnt in active flight list, so problems with azimutsh and elemvation. Hot to fix this?
[20:31] <LeoBodnar_> How about J-pole antenna ?
[20:31] <Laurenceb_> LeoBodnar_: unless there is some clever antenni design
[20:31] <LeoBodnar_> Or asymmetrical dipole
[20:31] <Laurenceb_> lol pre-empted
[20:32] <JDat> No way, we will fix ground palne antenna
[20:32] <Laurenceb_> i was thinking a center fed dipole for 27mhz leo
[20:32] <JDat> main mission: 1280 MHz live video downlink tests
[20:32] <LeoBodnar_> Sorry JDat we had a separate antenna chat going
[20:32] <JDat> picture was bad, RF receiving was good
[20:33] <LeoBodnar_> A bit over 2m diameter but maybe OK still
[20:33] <ibanezmatt13> off to sleep, see some of you tomorrow at the conf :)
[20:33] <JDat> no ploblems regarding 434 Mhz telemetry antenna. we will fix it :)
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[20:33] <JDat> landig was not far from predicted postion
[20:33] <LeoBodnar_> does awg38 wire count as part payload? :)
[20:34] <LeoBodnar_> If it is just hanging down
[20:34] <enkidu> Ive put my slim-jim outside, using cable profile as a support
[20:34] <Laurenceb_> ill shut up
[20:34] <JDat> Admins, please remove all unacessary information regard Zinoo2 baloon from tracker and our chase cars because Mission completed
[20:34] <jcoxon> JDat, thanks
[20:34] <jcoxon> will do
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[20:34] <JDat> Payload was on the tree approx. 20 meters above ground
[20:35] <JDat> no damage to antennas or electronic container
[20:35] <LeoBodnar_> Hey why Laurenceb_ ?! Did I say smth?
[20:35] <Laurenceb_> sorry it was getting confusing there
[20:35] <Upu_M0UPU> and B-11 continues onwards :)
[20:35] <JDat> I have some pictures and www.chaula.tv live video stream on my facebook profile
[20:35] <Laurenceb_> but j-pole looks good for 27mhz i guess
[20:36] <SpeedEvil> JDat: Did you get it down?
[20:36] <LeoBodnar_> Yep
[20:36] <SpeedEvil> JDat: congratulations!
[20:36] <JDat> https://www.facebook.com/jdat.deface
[20:36] <JDat> thank you SpeedEvil
[20:37] <JDat> some prototyping pictures without commets
[20:37] <JDat> http://failiem.lv/u/atsmzec
[20:37] <enkidu> jpole yor 27mhz: 8111mm length. 241mm width
[20:37] <JDat> final version was different
[20:37] <Geoff-G8DHE-M> Updated GE files for both B-11 and B-12 for those interested http://360.g8dhe.net/HAB_Flights/index.php
[20:37] <JDat> antenna mount was the same
[20:37] <Laurenceb_> http://www.hamuniverse.com/jpole.html
[20:37] <Laurenceb_> eeek its huge
[20:37] <JDat> external GPS antenna was mounted on main antenna structure
[20:38] <Laurenceb_> i guess doable with polystyrene foam spars and wire
[20:38] <JDat> 434 MHz telemtry antenna was with incorrect agled ground poles
[20:38] <ike> like is trying to say someting http://360.g8dhe.net/hab_flights/B-11_20130901/B-11_201309051930.jpg
[20:38] <LeoBodnar_> Balsa wood
[20:38] <JDat> we will test in on antenna laborotory in Lievarde as soon as possible and will fix it
[20:39] <Lunar_Lander_> JDat, cool
[20:39] <LeoBodnar_> it just did ike
[20:39] <JDat> transitter is from radiometrix (as I know) 10 mW power
[20:39] <JDat> remember we need lot of antennas
[20:39] <LeoBodnar_> I want 13.560MHz
[20:40] <LeoBodnar_> At least for a day or two
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[20:41] <JDat> telemetry 434 MHz, Video downlon 1280 Mhz, GPS antenna, additionaly there is GPS+GSM backup tracker, GoPro camera (I don't know model) video camera, fly computer based on arduino mini (or something similar)
[20:41] <Lunar_Lander_> JDat, was that your balloon or a cooperation with x-f ?
[20:41] <JDat> it not my ballon :D
[20:41] <Lunar_Lander_> ah
[20:41] <JDat> it's for www.zinoo.lv
[20:41] <Lunar_Lander_> ah
[20:42] <JDat> x-f was invited, but he was busy on job today
[20:42] <Laurenceb_> 13.560mhz will be even bigger O_o
[20:42] <JDat> anyway, we learned lot from x-f LAASE-1 and LAASE-2 expierence ;)
[20:42] <Lunar_Lander_> ah ok
[20:42] <Laurenceb_> 15.917
[20:42] <Lunar_Lander_> what's zinoo's job?
[20:42] <Laurenceb_> meters
[20:43] <JDat> in line of singht there isn't any problems with 10 mW and 70 cm band
[20:43] <JDat> the same for video
[20:43] <JDat> another great idean, taht works: it is possible to receibe video with old, analog SAT receiver
[20:45] <JDat> sat receiver works better than standard RC reciever, vecause it is possible to fine tune frequency while ballon is flying and thremal drifh on transmitter oscillator. You know: problems with cold etc
[20:45] <LeoBodnar_> Maybe file a NOTAM and have 20m vertical dipole
[20:45] <Laurenceb_> lolz
[20:46] <JDat> paylad weight 870 grams+150 grams for chute
[20:46] <LeoBodnar_> Yeah why not. 2x 5.5m wires it's few grams if awg36
[20:46] <JDat> Gopro camera recovered an we got great videos
[20:47] <LeoBodnar_> I'd say its over 100% success rate
[20:47] <JDat> so this ir short tehcincal story
[20:47] <JDat> BTW this ir first baloon launch for me and my team
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[20:47] <LeoBodnar_> Congratulations
[20:48] <JDat> in short: the only one problem: bad telemetry antenna
[20:48] <JDat> main launch with party for Zinoo2 (or three) on September 21
[20:48] <JDat> ok
[20:48] <Laurenceb_> LeoBodnar_: yeah i guess a massive J-pole isnt actually that heavy
[20:48] <JDat> I wasn't sleep last night while we finish palyoad and going to rest
[20:48] <JDat> bye
[20:49] <Laurenceb_> J-pole HABs have been flown before
[20:49] <LeoBodnar_> bye! see you later!
[20:49] <Laurenceb_> why 13.5mhz rather than 27mhz?
[20:49] <JDat> and good luck to evryone
[20:49] <JDat> why 27 MHz
[20:49] <JDat> 430 Mhz works
[20:49] <JDat> last mile prblem could be fixed with GSM tracker
[20:49] <LeoBodnar_> 27MHz is noisy due to CB activity nearby and propagation is so much sweeter on 20m
[20:50] <Laurenceb_> interesting, I see
[20:50] <JDat> Now I am thinking about 5.8 GHz video downlink...
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[20:50] <Laurenceb_> Pi filters out the output to knock off the harmonics?
[20:50] <JDat> 27 MHz can be used for chare ans fox hunting on ast mile
[20:50] <JDat> last*
[20:51] <JDat> chase*
[20:51] Nick change: WillyBoy -> Willdude123
[20:51] <LeoBodnar_> Don't pay attention JDat it's an anorak project
[20:51] <JDat> but why to invet wheel, while there are tested systems?
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[20:51] <JDat> :)
[20:51] <JDat> Ok
[20:51] <Laurenceb_> lol
[20:51] <JDat> bye and good luck to your projects
[20:52] <enkidu> JDat: because there is need for long distance reception, over 1000km
[20:52] <LeoBodnar_> We have just un-invented all that you knew before now! :D
[20:52] <LeoBodnar_> CU
[20:53] <LeoBodnar_> Yeah so where were we?
[20:53] <Willdude123> I was looking at my PCB I can't quite remember why C1 is in that position, and the schematic shows the GND end connected to GND and the VCC end connected to VCC http://imgur.com/TQAJlNN
[20:53] <Willdude123> I just drew the airwires...
[20:54] <LeoBodnar_> It sounds very poetic
[20:55] <chrisstubbs> Willdude123, its decoupling the vcc of your gps
[20:55] <chrisstubbs> taking out any power supply noise and things that have been picked up along the track
[20:55] <Willdude123> But those 3 pins were i2c pins, that should've gone unused I think.
[20:55] <Willdude123> But OK
[20:56] <Laurenceb_> this is me spotting an arduino user http://i.imgur.com/i2Z85jB.gif
[20:56] <chrisstubbs> remember your gps is spun around 180 from the datasheet view
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[20:59] <adamgreig> Laurenceb_: haha excellent. would love to see you try that irl
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[21:00] <LeoBodnar_> Haha
[21:01] <Willdude123> Ah yes
[21:01] <LeoBodnar_> Have you finished your thesis yet?!
[21:02] <Laurenceb_> trollback
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[21:04] <LeoBodnar_> Do theses on the balloons instead, reviewers won't notice.
[21:04] <LeoBodnar_> *thesis
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[21:07] <LeoBodnar_> Tomorrow B-11 will [hopefully] start replacing entries in its flight log. I am sure this will keep fsphil very happy.
[21:07] <LeoBodnar_> Not!
[21:07] <fsphil> replacing?
[21:07] <fsphil> int overflow?
[21:07] <fsphil> or battery?
[21:07] <LeoBodnar_> It's a ring buffer but we are only looking at its head
[21:08] <Upu_M0UPU> B-12 frozen again I guess ?
[21:08] <LeoBodnar_> tomorrow the rolling update will restart from the head again
[21:08] <LeoBodnar_> Yes Upu_M0UPU
[21:08] <Upu_M0UPU> B-11 still going strong though
[21:09] <Upu_M0UPU> does it turn south again ?
[21:09] <crash_18974> Upu_M0UPU: are you getting any good checksums from vidablick?
[21:09] <LeoBodnar_> Who would have known it will come to this?! I hop it did not crash in a spectacular manner
[21:09] <enkidu> Upu_M0UPU: it will take a day
[21:09] <enkidu> it is in slowly mowing airmass
[21:10] <LeoBodnar_> Yes, back to Poland
[21:10] <Upu_M0UPU> I'm in a hotel in London
[21:10] <Upu_M0UPU> no RX
[21:10] <Upu_M0UPU> oh epic
[21:10] <Upu_M0UPU> poland :))
[21:10] <LeoBodnar_> Watch some movies instead
[21:10] <Upu_M0UPU> knackered off to bed soon
[21:10] <enkidu> maybe its right time to build collinear antenna
[21:11] <mfa298> going to bed soon, anyone would think you've got to get up early to travel miles to get to a conference.
[21:11] <mfa298> :p
[21:11] <Laurenceb_> LeoBodnar_: so something like this on the Ti pll output?
[21:11] <Laurenceb_> http://www.wa4dsy.net/cgi-bin/lc_filter3?FilterResponse=Bandpass&poles=6&CF=13.56&cfunits=MHZ&cutoff=1.0&funits=MHZ&Z=50
[21:12] <LeoBodnar_> Yes, why not? We are trying to prove the concept.
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[21:12] <Laurenceb_> seems very simple
[21:12] <Laurenceb_> nice
[21:13] <LeoBodnar_> I think I have 5-pole filter/match between antenna and PLL
[21:13] <LeoBodnar_> Reasonable output power. 10mW should be easy
[21:13] <LeoBodnar_> Can't control power though
[21:13] <Laurenceb_> yeah
[21:14] <Laurenceb_> i calculate about 25mW
[21:14] <LeoBodnar_> No I can! XD
[21:14] <Laurenceb_> control the voltage?
[21:14] <Laurenceb_> using separate SMPS for the VDDIO?
[21:14] <OZ1SKY_Brian> will go to bed now, but leave the RX on, goodnight all.
[21:15] <Laurenceb_> cya
[21:15] <LeoBodnar_> I have three output paralleled and I can Hi-Z some if lower power is required
[21:15] <LeoBodnar_> GN OZ1SKY_Brian thanks for your help!
[21:15] <Laurenceb_> oh neat
[21:15] <OZ1SKY_Brian> LeoBodnar your welcome, its been fun.
[21:16] <LeoBodnar_> It works on this. OK, I ma going to post it again.
[21:16] <Laurenceb_> so are you going to have another smps for 3.3v?
[21:16] <Laurenceb_> the Ti pll?
[21:16] <Laurenceb_> i know
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[21:17] <LeoBodnar_> Laurenceb_: http://leobodnar.com/balloons/files/IMG_1428.jpg
[21:18] <Laurenceb_> whoa
[21:18] <Laurenceb_> thats small
[21:18] <Laurenceb_> whats on there?
[21:18] <LeoBodnar_> I am shoving LiPo voltage where it 3.3V is supposed to be
[21:18] <LeoBodnar_> rearrange words until read proper
[21:19] <LeoBodnar_> *reads
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[21:19] <LeoBodnar_> this IRC client eats keypresses, doesn't it?
[21:20] <LeoBodnar_> A PIC12Fsomething and CDCE913 and some 1x1 SMPS thing for LiPo->1.8v generation
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[21:21] <Laurenceb_> wait no gps?
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[21:22] <LeoBodnar_> It's horrible to assemble manually. Kids, don't use 1mm size packages
[21:22] <Laurenceb_> heh
[21:22] <LeoBodnar_> That's DF tracker
[21:22] <Laurenceb_> oh i see
[21:22] <Laurenceb_> could you hook it up to the other board?
[21:23] <Laurenceb_> via uart or something
[21:23] <LeoBodnar_> Yes, sure. I already have a bullet-style PCB with CDCE913 on it
[21:23] <Laurenceb_> neat
[21:24] <LeoBodnar_> Just need to whip up a version with MPPT controller and step-down
[21:24] <LeoBodnar_> So it's all sort of converges into one
[21:24] <Laurenceb_> yeah
[21:24] <Laurenceb_> will you keep the 434mhz?
[21:24] <Lunar_Lander_> LeoBodnar_ which device is 1mm size?
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[21:25] <enkidu> voltage converter
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[21:26] <LeoBodnar_> top right corner under the cap. It is bga but I have broken out pads from under it
[21:26] <SpeedEvil> LeoBodnar: use http://shop.evilmadscientist.com/productsmenu/tinykitlist/652
[21:27] <LeoBodnar_> Ha! Beautiful
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[21:27] <Laurenceb_> https://www.youtube.com/watch?v=tqYAQdNWQjQ
[21:28] <LeoBodnar_> Suddenly -4dB s/n ratio on DominoEX sounds ear-splitting after sitting all day with -20dB signals
[21:28] <SpeedEvil> :-)
[21:32] <LeoBodnar_> https://www.youtube.com/watch?v=lfATy3UhKHo
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[21:33] <zs260> Hi, newbie here, looking for a ballon kit that anyone can recommend for the first launch
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[21:35] <mfa298> zs260: welcome, as to the best way to do a high altitude balloon that can depend on where you are and what experience you have
[21:36] <zs260> i will be launching it from Dallas Fortworth area, and i have no experience with high altitude balloon. Though i'm an engineer who can prototype basic electronic components, private pilot so i understand airspace
[21:37] <LazyLeopard> Well, the roads to the east of London are right royally completely stuffed at present. I wonder how much will have cleared by tomorrow...
[21:37] <jcoxon> LazyLeopard, my Gf is still on the M25
[21:38] <LazyLeopard> It's pretty hideous on the south side...
[21:38] <LazyLeopard> ...but I expect the north is worse.
[21:38] Action: mfa298 is glad he's approaching from the west
[21:39] <mfa298> zs260: in the USA most people use a system known as APRS to track their balloons however that requires an Amateur Radio License
[21:40] <LazyLeopard> I've been to Gravesend this evening. I managed to bail off at J3 on the way there.
[21:40] <K9JKM> These guys in Dallas haven't update their balloon launch website lately http://www.ntexbp.org/ but might have some points of contact
[21:40] <zs260> Thanks mfa, i'm looking into getting myself ham license, but it won't happen in next couple of weeks, i am trying to get it launched on the 16th of Sept :) may be stupidly ambitious
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[21:41] <LazyLeopard> ...and I came back via J2, and the north-bound side was solid and pretty much not moving right back to J3 still.
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[21:42] <mfa298> zs260: depending on the size you might need to get launch permission for somewhere which if it's anything like the uk that can take weeks (if not months)
[21:42] <LazyLeopard> south-bound side was, of course, moving fine, apart from the confused folk wanting to go north who found themselves going south again...
[21:42] <wrea> zs260: keep it small and just issue a NOTAM
[21:43] <LazyLeopard> jcoxon: Hope sh escapes soon!
[21:43] <zs260> yes i'm nothing thinking about really high altitude, my goal is to like 30k, and cut the cord and let the payload drop
[21:43] <zs260> *not really thinking
[21:43] <zs260> for NOTAM, i need to talk to FAA rite?
[21:45] <wrea> Yeah, whatever the regional office is closest
[21:45] <wrea> I'd also look at FAA Rule 101(?)
[21:46] <zs260> ok cool.. i can do that.. do you guys use something like SPOT in the UK for tracking?
[21:46] <zs260> if not APRS
[21:46] <mfa298> zs260: 30k - feet or metres
[21:46] <wrea> http://www.chem.hawaii.edu/uham/part101.html
[21:46] <zs260> 30k ft
[21:46] <mfa298> SPOT and GSM are generally seen as backup measures. GSM can be very poor. Spot works but only if it lands the right way up
[21:47] <wrea> zs260: Maybe talk to a local ham club to see if they'd work with you this launch?
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[21:47] <SP9UOB> Hello from London :-)
[21:47] <zs260> so what do you guys use?
[21:48] <chrisstubbs> Hi SP9UOB
[21:48] <mfa298> In the UK we mostly use the 434 ISM band as that allows low powered (10mW) devices from airborne.
[21:48] <zs260> yes i found a guy with HAM license.. looking for trackuino for that&
[21:48] <zs260> oki
[21:48] <zs260> cool
[21:48] <mfa298> we can't use HAM from the air (although other bits of europe can)
[21:49] <SP9UOB> Hi chrisstubbs :-)
[21:49] <mfa298> but I think the lowest ISM band you've got is around 900MHz which may not be so suitable
[21:49] <zs260> i see
[21:50] <enkidu> or 27 MHz ;)
[21:50] <mfa298> when making a payload pay attention to the GPS some stop working at somewhere between 12km and 18km a few will go up to 50km
[21:50] <jcoxon> LazyLeopard, just managedto get on to the A2
[21:50] <K9JKM> In USA if you transmit on 144.390 MHz tons of APRS stations will hear you
[21:50] <mfa298> for 10k ft you're probably ok
[21:50] <chrisstubbs> SP9UOB, just arrived today?
[21:51] <jcoxon> though going to need some creative directions to get back home
[21:51] <SP9UOB> chrisstubbs: yes,
[21:51] Action: mfa298 thinks it's probably time to get some sleep. It's an early start in the morning for some reason
[21:52] <SP9UOB> ok, see You tommorow - im realy tired :-) Night all
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[21:52] <K9JKM> Have a good conference!
[21:52] <LazyLeopard> I expect even the crossings in central London are probably feeling the weight of extra traffic at present.
[21:53] <jcoxon> yeah i've worked out a route for her
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[21:53] <jcoxon> most people i think won't know when to get off teh A2 and will get stuck
[21:53] <jcoxon> but enough about traffic (abit amateur radio repeater coversation)
[21:54] <LeoBodnar_> jcoxon: what is the best way to get there tomorrow arriving from Oxford?
[21:54] <LeoBodnar_> lol bad timing
[21:54] <Laurenceb_> http://ready.arl.noaa.gov/hypubout/11483_trj001.gif
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[21:55] <LeoBodnar_> ~ roughly where to get off M25?
[21:55] <enkidu> will pass so close
[21:56] <mfa298> LeoBodnar_: from soton (coming up the m3) google suggests M3, M25, M4 and then through london - and the alternatives I tried didn't seem any better
[21:56] <Laurenceb_> ooh it can do rainfall
[21:56] <ike> can I recive dominoEX16 with FM UHF walkie-talkie?
[21:56] <jcoxon> LeoBodnar_, ummm tis difficult
[21:57] <jcoxon> if its early you could go through london
[21:58] <mfa298> jcoxon: what's early ?
[21:58] <Laurenceb_> http://ready.arl.noaa.gov/hypubout/11582_trj001.gif
[21:58] <Laurenceb_> good news
[21:58] <jcoxon> well before 10 ish
[21:58] <Laurenceb_> 0mm rainfall
[21:59] <cm13g09> chrisstubbs: around?
[21:59] <chrisstubbs> hello
[21:59] <cm13g09> apologies for not being around much this week
[22:00] <cm13g09> was just wondering if you were launching this weekend at all
[22:00] <cm13g09> Predictions for tomorrow look vaguely OK
[22:00] <chrisstubbs> I was thinking about sunday but it looked like a long drive!
[22:00] <LeoBodnar_> cheers for suggestions guys, I will just trust/blame Apple to get me there
[22:00] <cm13g09> chrisstubbs: Sunday is only Colchester
[22:01] <chrisstubbs> hmm
[22:01] <cm13g09> well
[22:01] <chrisstubbs> will think about it on the day, I could do with some sleep
[22:01] <cm13g09> anywhere between Bury St Edmunds and Colchester
[22:01] <cm13g09> fair enough
[22:01] <LeoBodnar_> Laurenceb_: yes, staying within civilisation bounds
[22:02] <cm13g09> as could I
[22:02] Action: cm13g09 sleeps
[22:02] <chrisstubbs> Just need to upload this vid...
[22:02] <chrisstubbs> been testing the CHDK SSDV :)
[22:02] <jcoxon> chrisstubbs, you bring that for a demo tomorrow
[22:02] <jcoxon> ?
[22:02] <chrisstubbs> Will do :)
[22:02] <chrisstubbs> will there be an RX set up?
[22:02] <chrisstubbs> or shall i bring radio and laptop
[22:02] <Geoff-G8DHE> ike, No FM rceivers won't work as its Frequency Shift Keying rather than FM.
[22:03] <craag> chrisstubbs: I think there'll be an RX or 7..
[22:03] <chrisstubbs> Haha cool :)
[22:03] <chrisstubbs> Been busy with the hot glue gun tonight
[22:03] <chrisstubbs> http://bit.ly/1aUrFd1
[22:05] <jcoxon> awesome
[22:05] <ike> Geoff-G8DHE 10x for the info. I hope that I will get my SDR dongle in monday from mail
[22:05] <chrisstubbs> credit where credits due to fsphil for messing about building the firmware for me with his C code in
[22:05] <chrisstubbs> apparently it wasnt *too* bad haha
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[22:06] <Geoff-G8DHE> ike, The dongle will work fine!
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[22:06] <LeoBodnar_> cool chrisstubbs
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[22:07] <Geoff-G8DHE> Right I'm off, early start for a Saturday for me!
[22:07] <LeoBodnar_> while being summoned every two hours to clean up after B*s
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[22:07] <LeoBodnar_> Me too!
[22:07] <LeoBodnar_> It's time to have some rest
[22:07] <LeoBodnar_> see you tomorrow chaps!
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[22:08] <LeoBodnar_> We haven't finished yet Laurenceb_ ! I'll keep thinking about HF stuff.
[22:11] <jcoxon> hey Laurenceb_
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[22:13] <chrisstubbs> Laters LeoBodnar and Geoff-G8DHE
[22:13] <LeoBodnar> gn!
[22:13] <jcoxon> ping Laurenceb
[22:13] <chrisstubbs> See you both tomorrow
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[22:16] <Laurenceb_> pong jcoxon
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[22:17] <Laurenceb_> has someone flown a picoballoon into the dartford crossing?
[22:17] <jcoxon> Laurenceb_ is okay if i include some mihab stuff in my talk tomorrow
[22:18] <mfa298> < craag> chrisstubbs: I think there'll be an RX or 7..
[22:18] <mfa298> and that's just what we're bringing !
[22:18] <Laurenceb_> sure np
[22:18] <chrisstubbs> Ahah dare I ask why?
[22:18] <chrisstubbs> oh the exam practicals
[22:19] <mfa298> yep, exams
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[22:19] <chrisstubbs> sod it may as well bring mine too, its loaded up with batteries anyway
[22:19] <mfa298> I'm not sure we're quite bringing 7 but between us we could be close
[22:19] <chrisstubbs> can scare the londeners with my dodgy looking camera with protuding wires
[22:20] <DL1SGP> they gonna evac the tub
[22:20] <mfa298> just needs a t-shirt "If you can read this I left my bag on the underground"
[22:20] <Willdude123> I know it's off-topic but does anyone know any good free software for recording games? Like fraps, but that has a 30s limit.
[22:20] <mfa298> bag could be replaced by a 4 letter word starting with the same latter
[22:21] <chrisstubbs> oh it needs a "this is a harmless scientific experiment" sticker
[22:21] <chrisstubbs> then we will be all good
[22:22] <mfa298> right, having said I was heading to bed 1/2 hour ago I should go drink the hot (or possibly cold) chocolate and get that sleep
[22:22] <DL1SGP> add one "No animals were harmed for this experiment either.." sticker
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[22:22] <DL1SGP> have a restful and peaceful night mfa298
[22:23] <Willdude123> To everyone going to the conference: Hah! You have to actually go there while I can just sit back with a can of Pepsi Max watching.
[22:23] <chrisstubbs> all fun and games until bt destroyes your internet
[22:23] <chrisstubbs> like they do
[22:24] <wrea> Willdude123: Dont brag about drinking Pepsi MAx, no one is jealous of that :P
[22:24] <gonzo_> there is a lot more to the confs than just the talks
[22:24] <chrisstubbs> Canon a530 UART RTTY CHDK testing n tings: http://www.youtube.com/watch?v=IBEZR4E6blI
[22:24] <DL1SGP> bt is good at destroying internet, when I was at voluntary work near southampton and we just SAW the BT truck we told folks that internet would be failing within minutes
[22:24] <Willdude123> wrea, Why?
[22:24] <gonzo_> (beer for ecample)
[22:25] <DL1SGP> name badges!
[22:25] <wrea> Willdude123: It's just like bragging about diet soda
[22:25] <DL1SGP> and each attendee could say "I went to Oxford"
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[22:25] <chrisstubbs> oh arse there is a empty title in the middle of the video
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[22:26] <Willdude123> wrea, It's the aspect of relaxing with a refreshing drink.
[22:26] <chrisstubbs> oh well will deal with that another day
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[22:26] <Willdude123> chrisstubbs, Will put off my PCB sending off till tomorrow.
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[22:26] <chrisstubbs> ping Lunar_Lander_ ^^
[22:27] <Lunar_Lander_> hi chrisstubbs
[22:27] <chrisstubbs> check out the in frame straw I added for extra realism
[22:27] <unify> ~
[22:27] <Lunar_Lander_> xD
[22:29] <chrisstubbs> Lol
[22:30] <chrisstubbs> right better chuck my stuff in a bag then go to sleep!
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[22:31] <Willdude123> chrisstubbs, how does it select the best photo?
[22:31] <chrisstubbs> well at the moment it selects the biggest file size
[22:32] <Willdude123> Also why 600 baud
[22:32] <chrisstubbs> But after experimenting the best files seemed to be about 3/5ths the largest
[22:32] <chrisstubbs> so will take 5 and select 3rd
[22:32] <chrisstubbs> 600 baud becuase we had timing problems with the hax0red up uart at 300 baud
[22:32] <Willdude123> Oh OK. Does it do tracking too?
[22:32] <chrisstubbs> which might be fixed now, need to check
[22:32] <chrisstubbs> not at the moment
[22:33] <chrisstubbs> when i stumble accross some more money i might buy a gps camera
[22:33] <chrisstubbs> but may invlove reriting a lot of the uart code as it was platform specific
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[22:34] <Willdude123> Couldn't you make something really really small (using a shift register or something-haven't really done much in the way of those) that takes in data at 600 baud and then sends it to the NTX2 at 300?
[22:38] <chrisstubbs> the problem is in CHDK you can only capture an image at the resolutions the firmware allows
[22:38] <chrisstubbs> well canon allows, you cant change them in the firmware afaik
[22:38] <chrisstubbs> so the images are farily large and will take an age to send at 300b
[22:38] <chrisstubbs> 600b should be fine :) about 6-7 mins per image
[22:39] <chrisstubbs> 640*480 at the moment
[22:41] <Lunar_Lander_> chrisstubbs, cool demo!
[22:41] <Willdude123> Isn't that too fast to decode?
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[22:41] <Willdude123> But would my aforementioned idea be possible?
[22:42] <Laurenceb_> are you using the actual USART on the processor?
[22:42] <chrisstubbs> Willdude123, I have no idea, possibly not
[22:42] <chrisstubbs> it would be a lot of data to buffer
[22:43] <chrisstubbs> the uart might work at 300 baud now
[22:43] <chrisstubbs> Laurenceb, yeah
[22:43] <chrisstubbs> the uart is used to access the vxworks event shell
[22:43] <chrisstubbs> and you can print stuff out down it with an event call
[22:43] <chrisstubbs> Im doing a write up of how it all works, will be ready soon :)
[22:44] <ike> http://www.silabs.com/Support%20Documents/TechnicalDocs/Si4464-63-61-60.pdf Frequency range = 119–1050 MHz +20 dBm (Si4464/63) Data rate = 100 bps to 1 Mbps
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[22:49] <Sven_> can mee help a person with SSDV?
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[22:50] <Laurenceb_> ike: thats on the picoballoons
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[22:51] <Sven_> not?
[22:53] <chrisstubbs> Right I'm off, see some of you tomorrow!
[22:55] <WillTablet> Sven_ patience, you need.
[22:57] <WillTablet> Asleep, fsphil is, probably. Yes, hmmm.
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[23:25] <Lunar_Lander_> night!
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[00:00] --- Sat Sep 7 2013