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[00:12] <Darkside> launch
[00:12] <Darkside> too fast ascent rate
[00:14] <arko> maybe it will slow down
[00:14] <arko> target was 1?
[00:15] <Darkside> yes
[00:15] <arko> you got 0.9 at the moment :P
[00:16] <arko> slowing down too
[00:17] <Darkside> awesome
[00:17] <arko> i've found 500m off the ground the ascent varies a bit
[00:17] <arko> great job :)
[00:17] <arko> the graph looks nice too
[00:17] <Darkside> cool
[00:17] <arko> you can see a concave curve
[00:18] <arko> whats the temperature?
[00:18] <arko> on the gorund
[00:18] <arko> ground*
[00:18] <Darkside> 15
[00:18] <Darkside> ish
[00:18] <arko> nippy
[00:18] <arko> ish
[00:19] <arko> hmm, always figured the reason the ascent is fast in the beginning is because of surface winds and rising air from the heat of the ground
[00:20] <arko> woah
[00:21] <arko> its really slowing down
[00:21] <arko> yikes
[00:22] <arko> oh nvm
[00:22] <arko> man its like watching a live stock market
[00:22] <arko> wiggles and scares you, and it could crash any moment
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[00:40] <Darkside> wow 0.3m/s
[00:40] <Darkside> lol
[00:40] <Darkside> i really hope this floats
[00:42] <VK1OD> I see on the map page that freq is 434.150MHz, is that the actual MARK freq???
[00:42] <Darkside> no
[00:43] <Darkside> it will drift
[00:44] <VK1OD> Ok, is that the nominal MARK freq? I am confused because other HORUS info says to tune to 434.650 USB.
[00:46] <johnwill> My station VK2AWJ Gol Gol is not on the map
[00:48] <Darkside> johnwill: ok
[00:48] <Darkside> doesnt matter too much
[00:49] <Darkside> let me know when you can hear it
[00:49] <Darkside> VK1OD: we're usually on 434.650, but not today
[00:50] <VK1OD> So what freq should I set on a USB rx and what tones would I expect to hear, give or take a little drift?
[00:51] <Darkside> you;re not going to hear anything for a few hours
[00:51] <Darkside> probably 3-4 hours
[00:51] <Darkside> and it depends on the drift
[00:54] <VK1OD> I figure I probably won't hear it unless it is high altidude and within a couple of hundred km...if I leave the rx setup, you might get something, if it is on .650 you won't!
[00:54] <Darkside> ok
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[00:58] <johnwill> Is 0.2m /min ascent a bit slower than planned?
[00:59] <johnwill> 0.2 m/s !!!
[01:01] <Darkside> its meant to be slow
[01:01] <Darkside> not quite that slow
[01:01] <Darkside> but anyway
[01:04] <johnwill> My Multi Mode is RTTY 50. OK? I chose PicoHorus and Auto config
[01:04] <Darkside> yep
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[01:05] <Darkside> hey peter
[01:06] <VK5KX_Peter> darkside, it's going the wrong way, I may have to move later
[01:06] <Darkside> lol
[01:06] <Darkside> it'll turn
[01:06] <VK5KX_Peter> good
[01:06] <Darkside> evntually
[01:06] <VK5KX_Peter> did I confuse you with the maritime mobile location before
[01:07] <Darkside> not really, i figurd something was out :P
[01:09] <VK5KX_Peter> long 138 instead of 139
[01:11] <Darkside> VK5KX_Peter: im considering going for a drive out to where you are
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[01:12] <VK5KX_Peter> OK, I'll stay here and observe the scenery
[01:13] <VK5KX_Peter> Mark: coffee is on
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[01:16] <Darkside> VK5KX_Peter: can you go on mt beevor?
[01:16] <Darkside> VK5RMB
[01:17] <Darkside> morning VK2KRR & VK5ZEA_Michael
[01:17] <VK5ZEA_Michael> Hi Mark
[01:17] <VK2KRR> Morning
[01:17] <VK5ZEA_Michael> can't do any tracking today... but watching with interest!
[01:17] <Darkside> no probs
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[01:17] <VK5ZEA_Michael> I really really need to get a VHF/UHF SSB rig!!!
[01:17] <Darkside> VK2KRR: whereabours are you?
[01:18] <VK5KX_Peter> mt beevor, wher's that??
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[01:18] <Darkside> 146.875
[01:18] <VK2KRR> Michael, yes u do :)
[01:18] <VK5ZEA_Michael> :-)
[01:19] <Darkside> brb
[01:19] <VK2KRR> Darkside, im 30km SW Wagga
[01:19] <vk5rm> Gm All de Phil
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[01:21] <Darkside> VK2KRR: excellent
[01:21] <Darkside> we need someone around there
[01:21] <Darkside> or, we will
[01:21] <Darkside> anyway
[01:21] <Darkside> im going clear for a bit
[01:21] <Darkside> driving from mt barker up to whree VK5KX is
[01:22] <Darkside> VK5KX_Peter: ill probably be half an hour or more
[01:22] <Darkside> so cheers guys, i'll be back online when i'm there
[01:22] <Darkside> 73s
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[01:26] <VK5KX_Peter> seeya when I'm looking at you Mark
[01:28] <VK2KRR> Should I be using vertical or horizontal antennas ?
[01:31] <VK5ZEA_Michael> I've got an IC-R10 and a small hand held Yagi... needs a little more altitude...
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[01:37] <vk5mar> Hi Where is the balloon now please
[01:38] <VK2KRR> Above Elizabeth
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[01:47] <arko> Darkside: lookin good dude!
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[01:48] <Alex____> vk5nex:howdy
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[01:49] <vk5nex> what R U going to do ?? its going nowere ??
[01:49] <VK5KX_Peter> it is going ..... UP tho
[01:50] <vk5nex> Darkside, are U going to cut it down??
[01:51] <VK5KX_Peter> Mark is currently driving out to where I am located
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[02:01] <vk5fsck> 5.194km away, closest it got to me
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[02:05] <vk5fsck> vk5nex: my understanding of it is it a floater, and there no chase cars etc, going for distance more than anything
[02:07] <vk5fsck> and it prob got old dev hardware in it and Darkside not bothed if get back or not
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[02:34] <VK5KX_Peter> balloon is overhead Gawler at 5400m altitude !!
[02:35] <vk5fsck> https://www.youtube.com/watch?v=UjBrple5Idc
[02:36] <arko> ascent rate looks awesome
[02:37] <arko> Darkside: is this your first floater?
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[02:39] Nick change: heathkid|2 -> heathkid
[02:40] <vk1kw> test
[02:41] <VK2KRR> 5/9
[02:41] <vk1kw> Greetings oh mighty antenna maker you
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[02:43] <VK2KRR> Dont talk to me about antennas, bit annoyed still lol
[02:43] <vk1kw> huh - did it blow down??
[02:44] <VK2KRR> ? they never got up
[02:44] <vk1kw> oh no! the big lifting thing didn't turn up then?
[02:44] <Darkside> aaand i'm back
[02:45] <arko> yo!
[02:45] <Darkside> VK6QI de VK5QI
[02:46] <VK2KRR> Rob, no the antennas didn't tune up good enough, cant put them up
[02:46] <Darkside> righto
[02:46] <Darkside> well i'm sitting here in the murphymobile
[02:47] <Darkside> out near Palmer
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[02:47] <vk1kw> ok - hope it works out ok then
[02:48] <VK2KRR> Rob, change of plans now, will advise later
[02:48] <Darkside> vk1kw: might be a while before oyu csna hear it!
[02:50] <vk1kw> Darkside: yep just worked out what the circles mean again - good to see it is going up slowly though
[02:51] <Darkside> yeah
[02:53] <vk1kw> Darkside: any thoughts of a second balloon attached and inflate by relief valve at altitude
[02:54] <Darkside> too complex
[02:54] <Darkside> way too complex
[02:55] <vk1kw> Darkside: agree
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[03:00] <vk1kw> I have latest fldigi running but no marker on map yet?
[03:01] <Darkside> iot takes a while
[03:01] <Darkside> takes a while*
[03:02] <vk1kw> its been an hour or more - do I need to turn anything on?
[03:03] <Darkside> hrm
[03:03] <Darkside> not sure then
[03:03] <Darkside> is it online?
[03:05] <vk1kw> ahh maybe I should have the map and script running on same pc
[03:22] <Darkside> i really did screw up the temp to voltage conversion
[03:26] <Darkside> johnwill: ping
[03:26] <Darkside> you should be hearing it about now
[03:26] <vk5fsck> I am starting to loose it
[03:27] <Darkside> you shouldnt be
[03:27] <Darkside> its very strong here
[03:27] <Darkside> it might be n an antenna null
[03:28] <vk5fsck> might be
[03:28] <vk5fsck> ok it picking backup
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[03:29] <vk5fsck> Darkside: just remember I only using j-pole about 6m agl
[03:29] <Darkside> mm ok
[03:30] <Darkside> yeah you'll have nulls
[03:30] <Darkside> greetigns VK6QI
[03:30] <VK6QI> Hi portable from Bowning NSW.
[03:30] <Darkside> aha
[03:30] <Darkside> i was wondering
[03:31] <VK6QI> Yup, I wasn't expecting the winds aloft to be heading West!
[03:31] <Darkside> hahhaa
[03:31] <Darkside> yep
[03:31] <Darkside> well it might be a while before you hear it
[03:32] <VK6QI> Is the 0.9m/s the horizontal or vertical speed?
[03:32] <Darkside> ascent rate
[03:33] <VK6QI> Roger. Any idea how fast it's moving horizontally?
[03:33] <Darkside> 46kph
[03:34] <VK6QI> Looks like I have time to find a RX, antenna, software, etc!
[03:34] <Darkside> yup
[03:34] <VK6QI> Cheers, QRT for a bit.
[03:34] <Darkside> kk
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[03:39] <johnwill> Nothing heard at Gol Gol yet 434.158 MHz USB - VK2AWJ
[03:39] <johnwill> I meant 434.150
[03:39] <Darkside> ok
[03:39] <Darkside> its higher in freq now
[03:40] <Darkside> 434.155MHz
[03:40] <Darkside> ish
[03:40] <Darkside> 434.154.3 will have it dead centre of the dl-fldigi display
[03:40] <vk5fsck> my rx sitting on 434.153.79
[03:41] <Darkside> vk5fsck: peters is rubidium locked :P
[03:41] <Darkside> i trust his more thsn yours
[03:41] <Darkside> :P
[03:41] <vk5fsck> my rx sitting on 434.154.29 now
[03:41] <Darkside> k
[03:41] <vk5fsck> Darkside: dl-fldigi controling my rx
[03:42] <Darkside> cool
[03:43] <vk5fsck> Darkside: nice on the rubidium lock
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[03:45] <vk5fsck> are we there yet?!
[03:45] <shenki> https://www.google.com/loon/
[03:45] <Darkside> oh dear
[03:45] <vk5fsck> hehe
[03:45] <Darkside> they want to make their own network of superpressure floaters do they
[03:45] <Darkside> its been tried
[03:45] <Darkside> never worked well
[03:46] <shenki> some nice looking photos on their G+ page
[03:46] <shenki> https://plus.google.com/+ProjectLoon/posts
[03:46] <Darkside> oh dear
[03:47] <Darkside> big superpressures
[03:47] <johnwill> Hearing signal, faint yellow bars on display, nothing being decoded
[03:47] <Darkside> i wishi had that much money
[03:47] <Darkside> johnwill: shoud get stronger
[03:47] <Darkside> its heading towards you at 65kph :-)
[03:48] <johnwill> Seeing it unfold as we speak
[03:48] <Darkside> hehe
[03:49] <shenki> look, it's a crap version of spacenear.us https://lh3.googleusercontent.com/-OEJWEw7Cqdw/UbvVI-WWHBI/AAAAAAAAAI4/cJufACRutWw/w1043-h500-no/00L.png
[03:49] <Darkside> heh
[03:49] <shenki> i like the solar panels they hang below the balloon
[03:49] <shenki> like you said, if only we had that much money :)
[03:50] <Darkside> yeah
[03:50] <shenki> speaking of: http://www.qrz.com/db/TF3ML
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[03:51] <Darkside> vk: hello
[03:51] <Darkside> change your nickname with /nick nickname
[03:51] <vk> WE WILL be here till the cows come home
[03:51] <Darkside> yep
[03:51] <Darkside> hha
[03:51] <Darkside> its going to float for a while
[03:52] <vk> Schould have had a CUT DOWN
[03:54] <vk> Im giving up Mark, FOOTYS ON the CROWS Are playing CU.
[03:54] <Darkside> haha right o
[03:54] <Darkside> no probs dad
[03:55] <vk5fsck> my rx sitting on 434.154.79 now
[03:55] <Darkside> johnwill: you should definitely be hearing it now
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[03:56] <johnwill> Hearing the telemetry, only gibberish being decoded
[03:56] <Darkside> ok
[03:56] <Darkside> check its autoconfigured correctly, etc
[03:56] <vk5fsck> johnwill: checked the filter bandwidth
[03:56] <Darkside> yeah, might help to up the filter bandwidth a little
[03:57] <vk5fsck> dl-fldigi under linux seems to default it to 65 for some reason
[03:58] <Darkside> thats normal
[03:58] <Darkside> works fine when the shift doesnt change
[03:58] <vk5fsck> yep
[03:58] <Darkside> but as this payload gets colder, the transmit frequency will drift up, and the MARK/SPACE shift will decrease
[03:58] <Darkside> so you either change the filter, or change teh shift
[03:58] <Darkside> preferably change the shift
[03:58] <johnwill> "Uploaded telemetry successfully"
[03:59] <Darkside> awesome
[03:59] <Darkside> if that bar goes green then it means you're dcoding fine
[04:00] <johnwill> still red Bad checksum
[04:00] <Darkside> ok
[04:00] <Darkside> it'll get better
[04:02] <arko> Darkside: if this floats, will this be your first floater?
[04:02] <Darkside> no
[04:02] <Darkside> horus 16
[04:02] <arko> ah
[04:02] <arko> cool
[04:02] <Darkside> unintentional 1600g floater
[04:02] <arko> haha
[04:02] <Darkside> landed off the coast of sydney
[04:02] <arko> nice!
[04:03] <arko> so do you have any towers else where to pick it up when it drifts away from Adelaide?
[04:03] <Darkside> yep
[04:03] <Darkside> got people all the way to sydney ready to decode
[04:03] <arko> :)
[04:03] <arko> awesome
[04:04] <arko> does it look like it's going to float?
[04:04] <Darkside> dunno
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[04:05] <shenki> Darkside: where do you expect it to top out?
[04:05] <Dan-K2VOL> hello world!
[04:05] <shenki> at what altitude, i mean
[04:05] <Darkside> shenki: 20km
[04:05] <shenki> k
[04:05] <arko> lets start a betting pool for landing site
[04:06] <Darkside> Dan-K2VOL: attempting a 100g hwoyee floater
[04:06] <arko> i say within 100km of Newcastle
[04:06] <shenki> land/ocean
[04:06] <Dan-K2VOL> awesome darkside, looks like you have company in the air - http://www.wired.com/business/2013/06/google_internet_balloons/#slideid-82247
[04:07] <Darkside> Dan-K2VOL: haha yes
[04:07] <Darkside> i saw that
[04:07] <Darkside> their own superpressure fleet
[04:07] <Dan-K2VOL> quite so :-)
[04:07] <arko> thats so epic
[04:07] <Darkside> i thought you'd like that
[04:07] <Dan-K2VOL> I sure do, I've been working on them :-)
[04:08] <Darkside> AH!
[04:08] <Darkside> hahaha
[04:08] <Darkside> helium?
[04:08] <Dan-K2VOL> oh I can't say anything specific, but do just enjoy the excitement friends, I hope to be able to say more someday, at least now I can admit that I am a part of it :-)
[04:08] <Darkside> heh
[04:08] <Darkside> ok
[04:09] <Dan-K2VOL> there are some nice upclose pics on the wired article of the balloons themselves
[04:11] <Dan-K2VOL> what's your payload wt darkside
[04:11] <Darkside> 45g
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[04:11] <Darkside> upped a bit to add another aa battery
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[04:14] <VK6QI> Hi 1kw. Mark at Bowning here.
[04:14] <Dan-K2VOL> what's the expected float alt?
[04:14] <Darkside> 20km
[04:14] <Darkside> i hope
[04:14] <Dan-K2VOL> cool
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[04:17] <VK6QI> What do the green and blue circles on thespacenear.us page designate?
[04:18] <johnwill> Yippee, got the green light
[04:18] <VK1KW> Problem with missing antenna icon on map was my altitude missing from station location config
[04:18] <Darkside> ahh
[04:18] <Darkside> johnwill: might be the same for you
[04:18] <Darkside> check you ave altitude set up
[04:19] <VK1KW> put cursor on circle and green 5 deg elevation and blue horizon
[04:19] <Darkside> haha
[04:19] <Darkside> vk5dj is getting it
[04:19] <Darkside> excellent
[04:21] <johnwill> cannot find elevation field in operator details
[04:21] <Darkside> hrm
[04:21] <Darkside> oh
[04:21] <Darkside> go to dl-client -< configue
[04:22] <Darkside> then location tab
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[04:27] <johnwill> Thanks for the DL Client config - VK2AWJ now on the map
[04:28] <Darkside> awesome
[04:28] <Darkside> now we need to get VK5DJ to do the same
[04:29] <VK1KW> also found my XP PC too slow to do map and fldigi and my icon would not appear but does on Firefox Linux machine ok
[04:31] <arko> hah, theres a town called Wagga Wagga
[04:31] <arko> thats awesome
[04:31] <Darkside> lol
[04:31] <Darkside> yes
[04:33] <Darkside> johnwill: theres a very real chance that it could burst and land near your area
[04:33] <Darkside> feel free to go pick it up :-)
[04:37] <johnwill> It is over Waikerie at to moment - a long way from Gol Gol
[04:38] <Darkside> yeah
[04:38] <Darkside> if it bursts, it'll fall like a stone
[04:39] <johnwill> I'm going to put the kettle on - still erratic decoding, only an occasional green colour
[04:39] <Darkside> ok
[04:45] <Dan-K2VOL> https://twitter.com/search?q=loon&src=tyah
[04:46] <Dan-K2VOL> oops, meant to post this link of the Loon balloon from Wired: https://twitter.com/StevenLevy/status/345754007232466944/photo/1
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[05:10] <vk5fsck> wow still getting data ant it at remark
[05:10] <vk5fsck> renmark
[05:11] <johnwill> Thanks for the invitation to join th picnic. 73's VK2AWJ
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[05:14] <Darkside> vk5ly: heyvk5lhey
[05:15] <vk5fsck> one day will get a yagi up for tracking the the balloon when it couple hundred km away
[05:15] Nick change: omd -> owen
[05:16] Nick change: owen -> Guest69156
[05:16] Nick change: Guest69156 -> VK1OD-1
[05:17] <Darkside> vk5ly: if you can track that woudl begreat
[05:17] <Darkside> we need as many trackers to the east as possible
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[05:24] <vk5fsck> Darkside: I lost it at the border
[05:25] <Darkside> ok
[05:25] <Darkside> it will have gone below the hills
[05:27] <Darkside> its 2.7 degrees above the horizon here
[05:27] <Darkside> at palmer
[05:29] <Darkside> ahaha
[05:29] <VK1OD> It would be helpful to have a good estimate of the MARK freq as it passes from view.
[05:29] <Darkside> it *just* avoided victoria
[05:29] <Darkside> only just
[05:29] <vk5fsck> Darkside: I tweaking now, can still see it, but just getting bad data
[05:29] <Darkside> k
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[05:30] <Darkside> its about 1.5KHz above 434.155.7 atm
[05:31] <Darkside> VK1OD: you'll habe to tune around a bit until you see it
[05:31] <Darkside> it shoudl be pretty obvious though
[05:31] <Darkside> 2 parallel lines, approx 450Hz apart
[05:32] <vk5fsck> yeah I been on 460 all time
[05:32] <Darkside> yeah
[05:32] <Darkside> the shift isnt changing as much as i would have thought
[05:32] <Darkside> which is good
[05:32] <Darkside> means less retuning required
[05:33] <vk5fsck> Darkside: I say that be it from me, good luck
[05:33] <Darkside> ok
[05:33] <Darkside> thanks
[05:33] <VK1OD> In the 'real world' there is a standard for expressing freq of a telegraphy channel, it is the MARK freq, which I am guessing from what you say is 434155.+1.5+.225kHz.7
[05:34] <Darkside> VK1OD: yes, that sounds about right
[05:34] <VK1OD> In the 'real world' there is a standard for expressing freq of a telegraphy channel, it is the MARK freq, which I am guessing from what you say is 434155.7+1.5+.225kHz.
[05:34] <vk5fsck> Darkside: np yw
[05:34] <Darkside> VK1OD: yes, thats correct, but given the nature of the transmitter, it will drift up and down
[05:34] <Darkside> and ic an't give an exact frequency
[05:34] <Darkside> it will drift even more overnight as the payloads temperature drops down to -30 or so
[05:35] <VK1OD> In the 'real world' there is a standard for expressing freq of a telegraphy channel, it is the MARK freq, which I am guessing from what you say is 434155.7+1.5-.225kHz.
[05:35] <daveake> You seem to be cloning the real world
[05:35] <VK1OD> Yes, I understand the drift issue, but it will probably stabilise a bit now.
[05:35] <VK1OD> I can't sit by the receiver, but I can set it up so that it has a chance.
[05:36] <Darkside> it shoudl be visible in your area in a few hours
[05:36] <VK1OD> daveake: yes, typos in the thing...
[05:38] <VK1OD> daveake: The "real world" standard is ITU F.246-3.
[05:39] <Darkside> does that specify ASCII too?
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[05:59] <vk5fsck> Darkside: I uploaded heap screenies to G+ for ya
[06:00] <Darkside> k
[06:00] <Darkside> http://imgur.com/a/bec7y
[06:01] <VK1OD-1> What is the battery endurance in hours from launch?
[06:01] <Darkside> approx 40
[06:01] <vk5fsck> https://plus.google.com/u/0/photos/112834383418811528465/albums/5889583647996818497/5889584141706565266?pid=5889584141706565266&oid=112834383418811528465
[06:01] <arko> does that include the math for the resistor? :P
[06:02] <VK1OD-1> Oh good!
[06:02] <Darkside> arko: actually no
[06:02] <Darkside> lol
[06:02] <arko> uh oh
[06:02] <Darkside> haha
[06:02] <Darkside> 1K resistor
[06:02] <arko> >_>
[06:02] <Darkside> 1.5ma extra current
[06:02] <arko> OH YOU
[06:02] <Darkside> it hink it'll be fine
[06:02] <arko> yeah
[06:02] <arko> just remember you are integrating that
[06:03] <Darkside> i'd expect it to take a bit less than an hour off
[06:04] <arko> yeah
[06:04] <Darkside> as long as it doesn't freeze and die, it should last for that long
[06:05] <Darkside> no guarantees it wo't freeze though
[06:05] <arko> wonder how much heat that little guy is making
[06:05] <VK1OD-1> I see Leigh has had it for a little while, Rob should see it in an hour or so, and me in another couple (0900UTC).
[06:05] <arko> looks like you're at -7 at the moment
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[06:12] <arko> Darkside: http://www.quickmeme.com/meme/3uv0hu/
[06:12] <Darkside> :<
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[06:20] <Darkside> vk5nex: hey dad
[06:21] <vk5nex> Hi Mark Im back the CROWS got FLOGGED AGAIN AND the baloon is moving!! Im still hearing it quite well
[06:21] <Darkside> haha yep
[06:21] <Darkside> you should hear it for a while
[06:22] <arko> woah, i wish my dad knew how to use irc
[06:22] <vk5nex> Im using your AMP!!
[06:22] <arko> hah
[06:22] <Darkside> nice. i'll have to get you a new one of those, with the better filters
[06:22] <Darkside> vk5nex: http://imgur.com/a/bec7y
[06:22] <Darkside> have a look at that
[06:27] <vk5nex> { looked is this the current balloon??
[06:27] <Darkside> yes
[06:29] <shenki> Darkside: the battery is fluctuating a fair bit
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[06:30] <Darkside> shenki: i didnt decouple the ADC pin well enough
[06:30] <Darkside> its measuring switchmode noise
[06:30] <Darkside> also my conversion factor is wrong
[06:31] <shenki> fair enough
[06:31] <shenki> Darkside: what are the chances of someone recovering it for you?
[06:31] <Darkside> uhm
[06:31] <Darkside> depends where it bursts
[06:31] <Darkside> where it is right now is a really bad area
[06:32] <shenki> does it have contact details on it?
[06:32] <Darkside> yeah
[06:32] <Darkside> has my phone number
[06:32] <shenki> cool
[06:32] <shenki> why is it wrapped in the blue tape?
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[06:33] <Darkside> shenki: its what i had
[06:38] <steve_____> any flights planned for today?
[06:38] <Darkside> haha
[06:38] <Darkside> hahaha
[06:38] <Darkside> look on the tracker
[06:38] <Darkside> wrong continent though
[06:38] <steve_____> always wrong :)
[06:39] <eroomde> what are you flying Darkside?
[06:40] <Darkside> http://imgur.com/a/bec7y
[06:40] <Darkside> pico payload
[06:40] <Darkside> one of the new picohorus boards
[06:40] <eroomde> 100g?
[06:40] <Darkside> yes
[06:40] <eroomde> hoping for float?
[06:40] <Upu> morning
[06:40] <Upu> good luck with the float
[06:41] <Darkside> been ding about 0.5-0.6m/s ascent
[06:42] <Upu> well let see :)
[06:42] <Upu> I'll go walk dog back soon
[06:42] <Darkside> kk
[06:43] <steve_____> Its nice you have trackers in NSW and SA
[06:43] <Darkside> yep
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[06:43] <steve_____> I am originally from Taranaki - it needs to go a few more km and a little south to float over there though :)
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[06:45] <steve_____> I guess Australia has a large percentage of amateur radio operators given its shear size
[06:45] <Darkside> not really
[06:46] <Darkside> there arent that many of us around
[06:47] <steve_____> I guess that area is fairly well populated and has good internet connections
[06:47] <Darkside> heh
[06:47] <Darkside> not really
[06:47] <Darkside> most of our population is on teh coast
[06:48] <eroomde> stop guessing :)
[06:48] <steve_____> I need to
[06:49] <steve_____> but Adelaide, Melbourne and Sydney and Canberia are fairly major cities as far as Australia is concerned it wasn't a bad guess
[06:49] <Darkside> well
[06:49] <Darkside> they are our state capitals
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[06:53] <lz1dev> i guess Australia is surrounded by water
[06:53] <steve_____> Its huge though
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[06:54] <lz1dev> only on the mercador projections
[06:54] <lz1dev> infact its tiny
[06:54] <steve_____> :)
[06:55] <vk5nex> Hi Mark Im going inside .Im still receiving it CU later OO
[06:55] <Darkside> kk
[06:55] <eroomde> return key broken
[06:55] <Darkside> thats my dad :-)
[06:55] <eroomde> hello Mark's dad!
[06:55] <Darkside> :P
[06:57] <shenki> what causes the ascent rate to increase?
[06:58] <steve_____> Good luck with the flight - I'm off - if it hits Taranaki then I might know someone who could help retrieve it :)
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[06:58] <eroomde> shenki: that's a very interesting qustion
[06:58] <eroomde> i'm not sure
[06:58] <eroomde> can hypothesise a bit tho
[07:00] <eroomde> often slow climbers increase in velocity becuase the balloon gets more stiff as it inflates because of the dropping outside pressure
[07:01] <eroomde> but the little 100g balloons are quite spherical almost all the time
[07:01] <eroomde> a sphere's drag coefficient is often said to be about 0.4
[07:01] <eroomde> but it's actually a function of the reynold number of the flow it's in
[07:02] <eroomde> and infact there is a well known 'kick' or 'knee' in the drag vs reynolds number curve off a sphere when the flow goes from laminar to turbulent, and the drag coefficient drops to about 0.2
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[07:03] <eroomde> which would imply a fairly sudden increase in ascent velocity
[07:04] <eroomde> now if you look at the alt vs time curve, you can see the fairly sudden increase in steepness of the curve at about 8km-9km altitude
[07:05] <eroomde> Darkside: can you possibly tell me what you think the diameter of the balloon is at 9km altitude?
[07:05] <Darkside> hm
[07:05] <eroomde> we can actually work out what the reynolds number is at this point
[07:05] <Darkside> it was approx 65cm diameter on the ground
[07:05] <eroomde> and see if it agrees with standard reynolds/drag curves
[07:05] <Darkside> that help?
[07:05] <eroomde> no
[07:05] <eroomde> i need you to speculate more :)
[07:05] <Darkside> not sure how to estimate
[07:05] <Darkside> lol
[07:05] <eroomde> on the alt at 9km
[07:05] <eroomde> well actually we can have a decent stab
[07:05] <Darkside> uhm
[07:06] <Darkside> probably 1m diameter at 9km
[07:06] <eroomde> vole is 4/3 *pi * radius cubed
[07:06] <Darkside> maybe a it more
[07:06] <eroomde> volume increase proportional to pressure decrease between sea level and 9km
[07:07] <eroomde> presure at 9km = 308 mbar
[07:07] <eroomde> so about 1/3 sea level
[07:07] <eroomde> so that basically means a radius increas of the cube root of 3
[07:08] <eroomde> which is 1.44* the launch diameter
[07:08] <eroomde> about 95cm
[07:08] <Darkside> not too far off my guestimate
[07:08] <eroomde> so yes, 1m is a good speculation darkside :)
[07:08] <Darkside> :-)
[07:08] <eroomde> and also makes the maths nice
[07:09] <Alchamist> Not sure you can put the words "matsh" and "nice" in the same sentence that often ...
[07:09] <Alchamist> *maths
[07:09] <eroomde> of course tyou can
[07:09] Action: Alchamist slaps his typist
[07:09] <eroomde> it's the only way of properly understanding physical things
[07:10] <shenki> eroomde: thanks for the explaination. did you study dynamics?
[07:10] <Alchamist> I don't disagree with that statement - just the "nice" bit! ;)
[07:10] <eroomde> shenki: nope
[07:10] <Darkside> shenki: eroomde is a supergenius
[07:11] <shenki> :D
[07:11] <eroomde> wolfram alpha reckons the kinematic viscosity of air at 9km is about 8.5 x 10^-6
[07:11] <eroomde> reynolds number is (v*L)/(kinematic viscosity)
[07:11] <eroomde> v is about 1m/s i guess in this case
[07:12] <eroomde> L is a 'characteristic length' for which the balloon diameter will do nicely = 1
[07:12] <eroomde> so reynolds number at 9km for this balloon is about 120,000
[07:13] <eroomde> or between 10^5 and 10^6
[07:13] <eroomde> https://www.grc.nasa.gov/WWW/k-12/airplane/Images/dragsphere.jpg
[07:13] <eroomde> i think that'd be ya candidtate explanation for why the speed suddenly increased!
[07:14] <Darkside> kk
[07:14] <shenki> that's cool
[07:14] <eroomde> so in summary, the way the fluid went around the sphere suddenly shanged from being 'sticky' (laminar) to turbulent (it just falls off the back off the balloon) and that has the affect of suddenly reducing the drag coefficient of the sphere
[07:15] <eroomde> you can see the sudden knee in that curve there
[07:15] <eroomde> between 10^5 and 10^6
[07:15] <eroomde> that's the transisition from laminar to turbulent
[07:16] <shenki> Darkside: i think this is a good reason to do a upwards-facing camera
[07:16] <Darkside> you wont se that effect though
[07:16] <shenki> well, it would give data on the balloon size
[07:16] <shenki> and we know the altitude
[07:17] <Darkside> that will just be confirming physics though
[07:17] <shenki> well, the rate of change of altitude... the speeed
[07:17] <shenki> yeah, exactly
[07:17] <shenki> that would be a cool blog post
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[07:18] <shenki> cool to me at least
[07:19] <shenki> rate has slowed now
[07:19] <shenki> Darkside: is it possible to get the live data?
[07:19] <eroomde> shenki: that's predicatable too
[07:19] <eroomde> https://www.grc.nasa.gov/WWW/k-12/airplane/Images/dragsphere.jpg
[07:19] <eroomde> see the drag coefficient comes back up again after the trip point
[07:20] <shenki> yeah
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[07:21] <Darkside> VK6QI: you shoudl be hearing it soon
[07:21] <shenki> hah, i thought you were talking to yourself Darkside
[07:21] <Darkside> whaha
[07:23] <VK6QI> Roger. Antenna now built... need to find a radio now!
[07:23] <Darkside> haha
[07:23] <shenki> VK6QI: where abouts are you?
[07:24] <Darkside> near yass
[07:24] <Darkside> portsbe :-)
[07:24] <Darkside> portable*
[07:24] <shenki> ok
[07:24] <VK6QI> Bowning NSW, about 80km NNW of Canberra.
[07:25] <shenki> Darkside: looks like it's gone over the horizon for your dad
[07:25] <Darkside> he's 60m ASL though
[07:25] <Darkside> so his horizon is a bit further
[07:25] <Darkside> he's gone in side though i think
[07:25] <VK6QI> Name is Mark. Good excuse to find and then refurbish an old antenna. No gear set up at this location yet.
[07:26] <Darkside> VK6QI: name is mark here too
[07:26] <Darkside> my callsign is VK5QI
[07:26] <Darkside> i think we've worked each other on SO-50 before
[07:27] <Darkside> or maybe i'm confused
[07:27] <VK6QI> No - I haven't been on Sats since the very earliest of OSCARs. Heard you driving somewhere neat Young a few weeks back, but couldn't make the repeater.
[07:28] <Darkside> ahh
[07:28] <Darkside> might hsave been on mt ginini, wheni was picking stuff up from canberra
[07:28] <Darkside> or on one of the wagga wagga area repeaters
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[07:29] <shenki> Darkside: why doesn't the tracker have a prediction line on it?
[07:29] <VK6QI> So are you mobile following the balloon?
[07:29] <Darkside> nope
[07:29] <Darkside> lol
[07:29] <Darkside> not this one
[07:29] <Darkside> shenki: it shuld be thre, but isnt working
[07:29] <Darkside> dunno why
[07:29] <shenki> k
[07:30] <shenki> how has the surface mount gps antenna been going?
[07:30] <shenki> i notice that there's fewer sats than with the helical
[07:30] <Darkside> pretty good
[07:30] <Darkside> its good enough
[07:30] <shenki> yeah, plenty
[07:31] <Upu> lol
[07:31] <Upu> 9 ?
[07:31] <Upu> :)
[07:31] <Upu> come back to me when it gets to 4
[07:32] <Darkside> heh
[07:32] <Darkside> like when i was running your code, right?
[07:32] <shenki> they're dropping like flies, it's down to 8
[07:32] <shenki> Upu: you have had issues?
[07:32] <Upu> the new max7 in power saving doesn't bother with more than 5
[07:33] <Upu> nope anything above 6 is fine
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[07:34] <Darkside> aha
[07:34] <Darkside> i think the balloon is in night
[07:34] <Alchamist> I'm not liking the scale of this whole Australia thing. Is it me, or has it been over the same bit of ground forever now? ;)
[07:34] <Darkside> well, its crossing the terminator ayway
[07:35] <Upu> well this may save it :)
[07:35] <Darkside> australia is big
[07:35] <shenki> http://www.bom.gov.au/australia/satellite/?tz=AEST&unit=p23&domain=1&view=06&satSubmit=Refresh+View
[07:35] <shenki> Darkside: not yet i dont think
[07:35] <Darkside> close
[07:35] <shenki> yeah
[07:35] <Darkside> that pic is a while old
[07:35] <shenki> 5 minutes
[07:37] <shenki> or 65 minutes
[07:38] <Darkside> heh
[07:39] <Darkside> hmm
[07:39] <Darkside> 0.3m/s?
[07:40] <Upu> slowing ?
[07:40] <Darkside> maybe
[07:40] <Darkside> maybe not
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[07:41] <Martin_G4FUI> Darkside : what are the flight objectives? Endurance?
[07:42] <Darkside> to see if a 100g hwoyee can float
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[07:46] <Darkside> lol battery: 2.150V
[07:46] <Darkside> uhm no
[07:46] <Darkside> i did not decouple that well enough
[07:46] <Darkside> oh well
[07:46] <Darkside> temp is dropping
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[07:47] <Upu> now is that reduction in ascent due to it entering a float naturally or because its in the dark now
[07:47] <eroomde> it's gone to the darkside
[07:47] <Darkside> mm
[07:48] <Darkside> >_>
[07:48] <Upu> haha
[07:48] <eroomde> i might actually download this flight data and do slightly more than a fag packet / irc analysis on the velocity vs reynolds number thing
[07:49] <Darkside> Upu: note that temp
[07:49] <Upu> I know :)
[07:49] <Darkside> bets on how long until the RFM22B fails?
[07:49] <Darkside> :P
[07:49] <shenki> mm. i was thinking that plotting the derivative of the ascent rate would be interesting
[07:49] <Upu> well your pikey solution might work
[07:50] <Upu> mad max engineering :)
[07:50] <Darkside> lol
[07:50] <shenki> Darkside: what do you reckon is the temp where it will fail?
[07:50] <Upu> 1' ago shenki :)
[07:50] <Upu> they died reliably at -20
[07:50] <shenki> Upu: awesome
[07:50] <Darkside> ours have gone lower
[07:50] <shenki> but Darkside chucked a resistor on top of it?
[07:50] <Darkside> we've had osiris payloads work reliably down to -35
[07:51] <Upu> Two of mine have died on long duration flights
[07:51] <Darkside> the resistor is on the crystal, not the IC
[07:51] <Darkside> the IC is where the temp sensor is
[07:51] <Upu> its the crystal that is the issue
[07:51] <shenki> ah, to stabalise the drift?
[07:51] <Darkside> nope
[07:51] <Darkside> to stop it from freezing
[07:51] <Upu> to keep it working :)
[07:51] <shenki> ah
[07:51] <Upu> I've switch my crystals out for ones rated to -40
[07:51] <Darkside> yeah send me a few
[07:51] <shenki> is it a quartz crystal?
[07:51] <Darkside> i probably need some
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[07:51] <Upu> not flight tested it yet mind
[07:52] <shenki> balloon is saying hello to the mungo man
[07:52] <Darkside> yep
[07:52] <Darkside> lake mungo
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[07:53] <VK5ZEA_Michael> Still up there eh Mark?
[07:53] <Darkside> yep
[07:53] <Darkside> lol
[07:53] <VK5ZEA_Michael> cool
[07:53] <Darkside> its getting bloody cold up at palmer
[07:55] <eroomde> 15C?
[07:55] <Darkside> 7-8C
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[07:57] <shenki> Darkside: are you where your aprs says you are?
[07:57] <dl2sch> hallo, what maximum altitude is expected until the balloon bursts ?
[07:58] <Darkside> shenki: eys
[07:58] <Darkside> dl2sch: it will hopefully float around 20km
[07:58] Nick change: arko -> brosephstalin
[07:59] <shenki> Darkside: you're with Peter?
[07:59] <Darkside> yep
[07:59] <Darkside> in his bus in fact
[07:59] <shenki> have i met him?
[07:59] <Darkside> FLOAT
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[07:59] <Darkside> dont think so
[07:59] Nick change: brosephstalin -> arko
[07:59] <ibanezmatt13> Good Morning :)
[07:59] <shenki> you're a float
[07:59] <eroomde> peter has a bus?
[08:00] <eroomde> pics or it didn;t happen
[08:00] <number10> is this a 200g Darkside ?
[08:00] <Darkside> 100g
[08:01] <number10> looking good
[08:01] <Darkside> eroomde: http://twitter.yfrog.com/ocuo6jpj
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[08:02] <eroomde> Martin_G4FUI: nice
[08:02] <eroomde> er, Darkside nice
[08:03] <arko> Darkside: dude this looks great!
[08:03] <arko> it's starting to float
[08:03] <arko> :)
[08:03] <Ugi> Hourus looks like it's flown well - that Darkside's?
[08:03] <Darkside> yes
[08:03] <Ugi> Nice one
[08:04] <ibanezmatt13> 2400v?
[08:04] <arko> wonder if it will lose alt since night approaches
[08:04] <Ugi> How high d'you reckon before it bursts?
[08:04] <Darkside> itll float
[08:04] <Darkside> i hope
[08:04] <Ugi> It looks like it's leveling off, so you may well be right.
[08:06] <shenki> https://docs.google.com/forms/d/1AZUjMF0lhKyTd7R6S_QBJGrUtZIkF1BSz5wUDNoDuVc/viewform
[08:06] <shenki> place your bets
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[08:06] <arko> hahaha
[08:06] <Ugi> I gotta run - just wondered if there are any scheduled UK flights today. Any ideas?
[08:07] <ibanezmatt13> That's excellent :)
[08:08] <shenki> Darkside: you didn't put a time in, only a date
[08:08] <Darkside> oh
[08:08] <Darkside> oh well
[08:09] <arko> 0.0
[08:09] <arko> nice
[08:09] <shenki> Ugi: your guess was on wednesday :)
[08:10] <Ugi> so I'm an optimist?
[08:10] <shenki> :D
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[08:11] <number10> http://www.bbc.co.uk/news/technology-22905199
[08:12] <Ugi> gotta run - need to shop or we don't eat - back later.
[08:12] <Ugi> hope Horus is still up then
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[08:13] <fsphil> oh sweet, she floats
[08:13] <Upu> yup :)
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[08:16] <arko> nice job Darkside :)
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[08:20] <arko> how much are those super pressure balloons google used?
[08:21] <eroomde> suspect they might be making them
[08:21] <eroomde> probably worth building a rig to make them for that kind of quantity
[08:22] <arko> wonder how hard it would be
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[08:24] <arko> hey its -26C and the crystal hasn't died *knock on wood*
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[08:24] <PE2G> Morning all, did CHEAPO make it to the Netherlands yesterday? (I was not at home)
[08:25] <fsphil> splashed down in the channel PE2G
[08:25] <PE2G> That's a pitty...
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[08:30] <Upu> there is one up over Australia a bit out of even your range though PE2G :)
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[08:31] <PE2G> I have a very good antenna :-))
[08:33] <fsphil> EME
[08:33] <fsphil> this is 100g right?
[08:34] <x-f> yep
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[08:36] <Upu> well I suspect thats floating over night, acid test will be sunrise
[08:37] <arko> hope its still flying when i wake up
[08:37] <arko> my friend in sydney said he would be willing to retrieve it
[08:37] <fsphil> amazing
[08:37] <arko> i was like lol
[08:38] <fsphil> well it's heading that way... could be a while mind
[08:38] <ibanezmatt13> How is floating possible? Do you have to fill while in flight from a helium cyclinder or something, or is it just about getting the perfect volume of helium at launch?
[08:38] <fsphil> right lift
[08:38] <x-f> and woowoo
[08:39] <fsphil> not so much that it bursts, not so much that it can't lift quickly enough
[08:39] <fsphil> it's a very fine balance, plus what x-f said
[08:39] <ibanezmatt13> ah right, ok. Sound pretty cool :)
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[08:44] <fsphil> I'll be trying it myself soon, but probably won't manage it
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[08:45] <arko> http://www.google.com/loon/
[08:45] <arko> neat
[08:46] <LazyLeopard> What happened to CHEAPO yesterday?
[08:46] <jarod> loon = salary in dutch :/
[08:46] <Martin_G4FUI> Horus' altitude/time curve is a thing of real beauty
[08:46] <Upu> "splash" LazyLeopard
[08:47] <LazyLeopard> Ah ;)
[08:47] <LazyLeopard> How high did it get?
[08:53] <Martin_G4FUI> LL : ISTR it was about 22k - telemetry was a bit sparse
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[08:55] <LazyLeopard> Yeah, it was a little low on output power...
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[08:56] <Martin_G4FUI> I could just make out the carriers in the w/fall but far too weak for any decodes :(
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[08:58] <LazyLeopard> Yeah. I got decodes early, but none once it was past about Ipswich...
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[09:01] <Martin_G4FUI> If it were all dead easy, it wouldn't be as much fun would it?
[09:02] <fsphil> getting them back is fun :)
[09:06] <ibanezmatt13> Just a quick one, does it matter so much if I keep disabling the other NMEA sentences everytime it gets an invalid sentence? In doing so, it works perfectly and the code is bombproof; I just wanted to know whether doing so could cause me problems such as overloading the GPS. The minimum delay I've set between disabling sentences if necessary is 1 second. Will that be ok?
[09:07] <daveake> What do you mean "invalid sentence"?
[09:08] <ibanezmatt13> well, for the moment, I class an invalid sentence as one which doesn't start with $GPGGA
[09:08] <ibanezmatt13> But only for the moment
[09:08] <daveake> If you mean "if you see an RMC sentence, you disable it so you shouldn't see it again" that's just fine.
[09:09] <daveake> However, when you send a UBX command you'll get a UBX reply back. If that triggers you to send another message then you can see how that will go
[09:09] <ibanezmatt13> So if I disable these sentences each loop I don't get one I want, would that be ok?
[09:09] <ibanezmatt13> ah right
[09:09] <daveake> What I do is if I see a sentence I'm not interested in, I disable that pareticular sentence
[09:10] <ibanezmatt13> Well I have a function I run at the start which disables all sentences except GPGGA which is fine. However, if the GPS fails for a moment and resets, I end up running that disabling function every time it loops to find a good sentence.
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[09:11] <ibanezmatt13> There is a delay after doing this of 1 second
[09:11] <ibanezmatt13> I mean it's working perfectly with it in, but I just wanted to know if it would harm the ublox
[09:14] <daveake> no not at all
[09:15] <ibanezmatt13> excellent. My program is now utterly bombproog
[09:15] <ibanezmatt13> bombproof :)
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[09:15] <ibanezmatt13> I've reset the GPS while it's been running, taken out the TX line, the RX line, everything. And it still works :)
[09:15] <daveake> A bold statement; you'll soon learn not to make those :)
[09:16] <daveake> Seriously though well done
[09:17] <Upu> lol
[09:17] <ibanezmatt13> thanks :)
[09:19] <ibanezmatt13> https://gist.github.com/ibanezmatt13/5750785
[09:19] <bertrik> ibanezmatt13: have you run a static checker on your code? it can often (but not alwys) detect things like potential buffer overflows.
[09:19] <ibanezmatt13> I've never heard of one of those
[09:19] <bertrik> sorry, didn't know it was python, I assumed C ...
[09:19] <ibanezmatt13> Ah, yes but I will learn C this summer
[09:20] <ibanezmatt13> Attempt to...
[09:21] <ibanezmatt13> I already know a little, like the basics. Defining variables, for, while loops, if statments, cases, functions... I just get a bit confused with certain other bits such as the general syntax with ; and {}. Though I will get used to it
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[09:25] <RocketBoy> http://www.bbc.co.uk/news/technology-22905199
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[09:26] <Phil_M0DNY> Interesting challenge! I wonder how far from wifi their 2.4/5GHz protocols are..
[09:27] <ibanezmatt13> Does look very interesting
[09:27] <Phil_M0DNY> It'll be interesting to see what balloon <=> balloon distances they manage.
[09:27] <cuddykid> "drift around the world on a controlled path" how do they control them?
[09:28] <RocketBoy> you could go up and down to catch different winds
[09:28] <cuddykid> true, but still not that controlled
[09:28] <RocketBoy> vent and dump
[09:28] <ibanezmatt13> Will having three LEDs on my stripboard for my HAB flight affect the power consumption much?
[09:28] <cuddykid> like if you wanted it to go right by 10km or w/e - there may not be the winds to facilitate that
[09:28] <cuddykid> no ibanezmatt13
[09:28] <Upu> just turn them off if alt > 1000 meters
[09:28] <ibanezmatt13> Ok. Thanks
[09:29] <ibanezmatt13> Well, I was going to have one showing the pulses of the serial port. So as a prepare for launch, I can see that it is working. The other two will be for checking power to the various components
[09:30] <ibanezmatt13> So I thought that turning them off wouldn't be easy
[09:30] <Phil_M0DNY> People who do 10hz GPS logging, what protocol do you use to read the GPS data from the ublox? (UBX, PUBX, etc)
[09:30] <ibanezmatt13> So I just wanted to know whether it would affect my power consumption enough to jeopardize the flight.
[09:30] <steve_____> I was reading the u-bloc data sheet and was wondering if it was wise to use power saving mode on the gps
[09:31] <steve_____> also I think there are possibly several other NMEA sentences that might be switched off
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[09:31] <RocketBoy> well if you want to save power...
[09:31] <steve_____> just looking at your code ibanezmat13 :)
[09:32] <ibanezmatt13> ah right :) Thanks
[09:32] <ibanezmatt13> I've never been one for keeping to a strict format so it may have inconsistent lines and so on
[09:32] <mfa298> ibanezmatt13: look up the power consumption of your LEDs and then compare it to the Pi.
[09:32] <steve_____> I don't see you setting it to airborne mode
[09:32] <ibanezmatt13> Not done that yet
[09:33] <ibanezmatt13> I don't know how to but I've made a note so I will definitely not forget it
[09:33] <ibanezmatt13> If it's a PUBX command, I could do it right now
[09:33] <ibanezmatt13> But I thought it was something a little more complex
[09:33] <daveake> it is
[09:33] <daveake> it's in the wiki :)
[09:34] <ibanezmatt13> I didn't see it, I'll have another read
[09:34] <ibanezmatt13> That's what I saw: 0xB5, 0x62, 0x06, 0x24, 0x24, 0x00, 0xFF, 0xFF, 0x06, 0x03, 0x00, 0x00, 0x00, 0x00, 0x10, 0x27, 0x00, 0x00, 0x05, 0x00, 0xFA, 0x00, 0xFA, 0x00, 0x64, 0x00, 0x2C, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0xDC
[09:35] <steve_____> I think thats flight mode
[09:35] <ibanezmatt13> That's where I became rather confused
[09:35] <steve_____> the gps has a few modes so it can be calibrated for different applications
[09:36] <ibanezmatt13> I thought it was just one of those "$PUBX, ..." Not all those... what ever they are. Hexadecimal?
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[09:36] <steve_____> you need to set a specific flight mode to allow it to work in the air
[09:36] <daveake> Sorry I misled
[09:36] <steve_____> they are hex
[09:36] <daveake> Binary commands - UBX
[09:37] <ibanezmatt13> How do I know what order to put them in? Do I just copy that?
[09:37] <steve_____> each part is made of two bytes
[09:37] <steve_____> just copy them
[09:37] <ibanezmatt13> Yeah, I've never understood hex
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[09:37] <ibanezmatt13> something to do with base 16 or something. I can't remember
[09:38] <daveake> hex is what we would all use if we had 16 fiingers
[09:38] <ibanezmatt13> why's that?
[09:38] <steve_____> yes but its a u-blox specific machine code
[09:38] <daveake> Well we use base 10 because we only have 10
[09:38] <daveake> hex is just a way to represent binary bits
[09:38] <daveake> And the UBX commands are all binary
[09:38] <ibanezmatt13> I don't actually understand what these bases are. I'll have to have a read up.
[09:39] <mfa298> it's well worth getting to grips with hex due to the ease it converts to binary and bytes
[09:39] <daveake> Well it's ame as decimal just goes further before you "carry one"
[09:39] <daveake> We have 10 fingers; computers generally have a power of 2 fingers :-)
[09:40] <ibanezmatt13> Base 2
[09:40] <RocketBoy> when i was a lad octal was the way to program
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[09:40] <steve_____> basically you are just switching different flags in registers on the chip
[09:40] <steve_____> to make it behave as you want
[09:40] <daveake> Octal lives on in TCP/IP V4
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[09:40] <RocketBoy> yea
[09:40] <number10> RocketBoy: the highways agency still use octal for address plugs on roadside equipment
[09:41] <RocketBoy> well its a lot easier to convert mentally
[09:41] <ibanezmatt13> Is there a way I can get a true or false value for flightmode? Just to check it's set
[09:41] <steve_____> I think it has a response
[09:41] <steve_____> you can check that
[09:41] <steve_____> all the C code examples do so - not sure about the python ones
[09:42] <chrisstubbs> ibanezmatt13, I have an example of setting flight mode and checking the response in python
[09:42] <ibanezmatt13> Really, that would be handy to look at
[09:42] <chrisstubbs> https://github.com/ooda55/PiCode/blob/master/ubx.py
[09:42] <ibanezmatt13> Many thanks :)
[09:43] <chrisstubbs> that will keep sending the command to switch to flight mode until it gets a valid ack response
[09:43] <chrisstubbs> its pretty much a line by line translation of the arduino code on the wiki
[09:43] <ibanezmatt13> I'll read it thoroughly, thanks
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[09:44] <ibanezmatt13> what is the ACK for?
[09:44] <ibanezmatt13> Is that for the response?
[09:44] <steve_____> yes
[09:44] <chrisstubbs> acknowlegement responce from the ublox
[09:44] <chrisstubbs> *acknowledgement response
[09:44] <chrisstubbs> my spelling is terrible
[09:45] <ibanezmatt13> welcome to my wrold, as fsphil says :)
[09:45] <Darkside> holy crap its still going
[09:46] <daveake> sure is nice one :)
[09:46] <RocketBoy> it is
[09:46] <Darkside> thats a 100g hwoyee RocketBoy
[09:46] <RocketBoy> :-)
[09:46] <daveake> first time one's floated iirc
[09:46] <Upu> when is sunrise Darkside ?
[09:47] <m3eav> does anyone know anything about the Hastings one suppose dot go up topday?
[09:47] <Darkside> Upu: uhm
[09:47] <Darkside> like 10 hours away
[09:48] <RocketBoy> whats the payload weight?
[09:48] <ibanezmatt13> chrisstubbs: I think I understand that code
[09:48] <Darkside> 45g
[09:49] <ibanezmatt13> wow that's light
[09:49] <Darkside> 50g with 2x AAs
[09:49] <chrisstubbs> good :) Translating it from C to python really helped me understand it more
[09:49] <Darkside> well
[09:50] <Darkside> i think teh weight of everything not balloon was about 48g
[09:50] <RocketBoy> ascent rate is about 0.7m/sec by my reconning
[09:50] <Darkside> i tried to get 0.8m/s
[09:51] <RocketBoy> well spot on (as it goes) then
[09:51] <Upu> probably going to be out over the sea by the time sunrise hits
[09:52] <RocketBoy> what neck lift did yo go for - or did you use the huge rate by eye inside method/
[09:52] <RocketBoy> ?
[09:52] <ibanezmatt13> chrisstubbs: at the moment, when I get an invalid sentence I disable certain NMEA sentences. This means that sometimes I can be disabling sentences every second. If I set flight mode both at the start of the program and in the loop where I don't get a valid sentence, would that be ok?
[09:54] <chrisstubbs> Yeah probably, however note with the while loop if you disconnect the gps the code will get "stuck" in the loop
[09:54] <Darkside> RocketBoy: kitchen scales
[09:55] <Darkside> filler weight differences
[09:55] <ibanezmatt13> chrisstubbs: strangely, disconnecting power to the GPS then reconnecting it eventually after a minute or so works again
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[09:55] <Darkside> then guessing the lift indoors
[09:56] <ibanezmatt13> Getting stuck in the loop is to be expected because theoretically it should re-loop until it gets a valid sentence again.
[09:56] <Darkside> http://i.imgur.com/SK1ptLo.jpg
[09:56] <Darkside> bad picture
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[09:57] <ibanezmatt13> gotta go now, good luck for the rest of the flight Darkside. See you :)
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[10:08] <Darkside> vk6qi: found a radio? :-)
[10:09] <vk6qi> Yup. Radio. Antenna. Wine. Fire. Life's good.
[10:09] <Darkside> :-)
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[10:09] <Darkside> decoding telemetry?
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[10:10] <vk6qi> Ha!
[10:13] <vk6qi> If I actually hear the bird, I'll start running around to find a Windows computer, download software, try and sort out how to connect radio to computer, etc.
[10:14] <Darkside> lol ok
[10:15] <vk6qi> What do think my chances of doing all that are?
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[10:16] <vk3bq> hello
[10:16] <Darkside> hey
[10:17] <Darkside> VK5QI here
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[10:17] <vk3bq> can still hear it in melbourne, get the odd decode
[10:17] <Darkside> cool
[10:18] <Darkside> keep trying :-)
[10:18] <vk3bq> this is decode video http://www.youtube.com/watch?v=toGSoZynivA
[10:18] <Darkside> yeahi saw that
[10:18] <Darkside> keep decoding please :-)
[10:18] <Darkside> i have no way of trackign it now!
[10:19] <vk3bq> and the audio one, you have seen that too, its very weak, and I only have a small verticle, i guess its slowly spinning, it increases and decreses level over time, slowly..
[10:19] <Darkside> yeah
[10:19] <Darkside> it might be
[10:20] <vk3bq> ive let me sydney friends know, hopefully some have a listen , whats expected run time, how long to predicted POP.
[10:20] <vk3bq> and the decoded audio form radio, when it was louder http://www.youtube.com/watch?v=7VuM5cpvqbI
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[10:20] <Darkside> vk3bq: there is no predicted pop
[10:20] <Darkside> it probably wont turn off until the morning
[10:20] <Darkside> well, burst
[10:21] <Darkside> and yeah, its slooowly moving along at 26kph..
[10:21] <Darkside> so why didi have to float the balloon at the slowest level :P
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[10:29] <RocketBoy> Darkside: thanks for the fill info - I just wanted to check that the ascent rate calculator was giving reasonable results with small balloons based on neck lift - and from that you are saying it seems to - within 10% or so
[10:29] <Darkside> yeah
[10:29] <Darkside> i used burst3
[10:33] <fsphil> excellent float
[10:33] <fsphil> very steady
[10:33] <fsphil> I wasn't expecting that
[10:34] <Darkside> i just had to pick the slowest wind layer to float in lol
[10:35] <Phil_M0DNY> Well at least it's not heading out to sea any time soon.
[10:35] <fsphil> wish it would stay a bit closer to the coast
[10:35] <fsphil> that's where all the trackers are
[10:35] <fsphil> wagga wagga being the exception
[10:35] <fsphil> what a lovely australian name
[10:35] <Phil_M0DNY> VK2KRR seems to have it covered. Just looked at his QTH pics :O
[10:36] <Darkside> yeah but he might want to go to bed soon enough
[10:37] <fsphil> any websdr's in the area?
[10:37] <Darkside> nope
[10:38] <Phil_M0DNY> One globaltuner in sydney, still well out of range.
[10:38] <fsphil> haha, http://upload.wikimedia.org/wikipedia/commons/7/7e/QueenElizabeth_InspectingSheep_WaggaWagga_1954.jpg
[10:38] <Phil_M0DNY> lol
[10:39] <LeoBodnar> She's not "inspecting" just "looking at" lol
[10:39] <Darkside> hahahaha
[10:39] <vk5rm> GN all hopefully will still be aloft on sunday morning....73
[10:39] <VK1OD-1> vk1kw: Rob, any sign with you yet???
[10:40] <Darkside> i think the mountains to the west might be in the way
[10:40] <LeoBodnar> What are the details of the balloon, how has it made to float?
[10:41] <VK1OD-1> That may be, but Rob is realtively high and although in the west, he might still get it early with his high performance antenna system.
[10:41] <Upu> 100g Latex , slow ascent possibly assisted by sunset LeoBodnar
[10:41] <Phil_M0DNY> LeoBodnar: 100g hwoyee, 48g payload, filled for 0.3m/s ascent rate.
[10:41] <Upu> it may rise and burst when the sun comes up
[10:42] <Darkside> 0.8m/s Phil_M0DNY
[10:42] <Upu> Darkside did you aim to hit this alt at sunset or is that just a happy accident ?
[10:42] <Phil_M0DNY> Oh sorry.
[10:42] <LeoBodnar> Thanks for the info. I like the setup!
[10:43] <Darkside> Upu: accident
[10:43] <x-f> Darkside, velocity means groundspeed?
[10:43] <Darkside> yes, in kph
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[10:43] <Darkside> slooooow
[10:43] <Phil_M0DNY> Is that payload-calculated or habitat?
[10:43] <Darkside> payload
[10:46] <x-f> PicoHorus data - http://i.imgur.com/2kiNE6F.png
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[10:46] <Darkside> lol
[10:46] <Darkside> i love the battery data
[10:46] <Darkside> something must have failed
[10:47] <Darkside> happened right as the temp dropped
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[10:50] <RocketBoy> http://i.imgur.com/SK1ptLo.jpg - must be the late night coding sessions dark side
[10:50] <Darkside> lol
[10:50] <Darkside> well it looks ok
[10:51] <Darkside> i think a resistor has gone funny
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[10:56] <VK1OD> vk3bq: Andrew, what freq do you have not for the high tone???
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[10:58] <vk3bq> owen, 434.155576 currently (ive never used rtty before) mid point is 2285
[10:59] <VK1OD> vk3bq: Tks OM, I will adjust in case it gets here before morning. I just spoke to 1KW, no sign of it in Fraser.
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[11:03] <SP9UOB-Tom> hi all :-)
[11:04] <vk3bq> owen, i just played with dial, i moved it down a little now on 434.155261
[11:04] <SP9UOB-Tom> PICO recovered: http://sp9uob.verox.pl/pico/PICOF.jpg
[11:04] <vk3bq> centre frequency is 2014
[11:07] <VK1OD-1> vk3bq: Are you telling me the dial is 434.155261 and the middle of the two tones is 2014???
[11:07] <vk3bq> yes, now
[11:07] <vk3bq> to my ear
[11:07] <vk3bq> sounds striongest
[11:07] <vk3bq> (ive never used RTTY before tonight) in 18 years
[11:07] <vk3bq> :D
[11:09] <x-f> SP9UOB-Tom, good job, did you find out why it descended?
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[11:10] <SP9UOB-Tom> x-f: i think it was descending because of cold - when i untangled it from grass - it almost escaped me
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[11:11] <x-f> the valve looked fine?
[11:11] <m3eav> http://www.bbc.co.uk/news/technology-22905199 the games on then :-)
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[11:13] <Laurenceb__> some Australians left a floater
[11:14] <Darkside> eeeeew
[11:14] <Darkside> sorry about that
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[11:14] <vk3bq> its ok, darkside is from adelaide, he much prefers a PIE FLOATER!..
[11:15] <Darkside> pff
[11:16] <Darkside> says the VB drinker
[11:16] <Darkside> :P
[11:16] <vk3bq> hey i drink my coopers , i know whats good for me,
[11:16] <Darkside> YES
[11:16] <vk3bq> family farm at finniss
[11:16] <Darkside> excellent
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[11:18] <fsphil> http://ready.arl.noaa.gov/hysplitout/15370_trj001.gif
[11:19] <Darkside> its going to take AAAAAAGES
[11:19] <fsphil> yea that's 24 hours
[11:19] <fsphil> in 12 hours it's still not at the coast
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[11:21] <Darkside> jeez
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[11:25] <Upu> this is good Darkside
[11:25] <Upu> means it will still be in range
[11:25] <Darkside> mm
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[11:31] <Darkside> wb8elk: hi
[11:32] <wb8elk> once again I cannot find a link to the Genpayload page anywhere...I thought I had bookmarked it but it didn't
[11:32] <Upu> http://habitat.habhub.org/genpayload/
[11:32] <daveake> http://habitat.habhub.org/genpayload/
[11:32] <daveake> damn too slow
[11:32] <daveake> again
[11:33] <wb8elk> thanks all
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[11:41] <wb8elk> I think I've entered the Flight Docs correctly...but no confirmation that it went through...can you check?
[11:41] <Upu> upload a few strings
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[11:43] <wb8elk> OK...they won't have a lock though
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[11:44] <vk3bq> darkside, im getitng decodes, but it seems im not uploading?
[11:44] <Upu> doesn't matter can see if its accepting it
[11:47] <Upu> is dl-fldigi online vk3bq ?
[11:48] <wb8elk> uploading now...anything getting through?
[11:48] <Upu> [2013-06-15 11:47:53,004] DEBUG habitat.parser MainThread: Exception in UKHAS main parse: ValueError: Invalid XOR checksum.
[11:48] <Upu> [2013-06-15 11:47:53,003] DEBUG habitat.parser MainThread: Selected payload_configuration 52ac474b35a36a64d1f9f01cea873d0d for 'WB8ELK'
[11:48] <Upu> [2013-06-15 11:47:52,936] INFO habitat.parser MainThread: Parsing [ascii] '$$WB8ELK,16,00:03:42,0.0000000,0.0000000,-17,0,874,0,87*62E8\n' (2bf10eca1c714a34ee8b224fa24c206fba88e93a3e4181093836c3a3957d9eb6) from WB8ELK-mobile
[11:48] <Upu> [2013-06-15 11:47:42,224] INFO habitat.parser MainThread: All attempts to parse failed
[11:48] <Upu> invalid checksum
[11:48] <Randomskk> that's not an xor checksum
[11:48] <Upu> I think your document is set to XOR but your transmitting CCIT
[11:48] <Randomskk> it's two bytes
[11:48] <Randomskk> mm
[11:49] <wb8elk> yes...I'm sending CCITT this time
[11:49] <Randomskk> well unless it's a 16 bit xor
[11:49] <Upu> CCITT even
[11:49] <Upu> document needs fixing
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[11:49] <Randomskk> I'll do it
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[11:49] <Randomskk> uhm
[11:49] <Randomskk> that's the wrong payload config document
[11:50] <wb8elk> I have way too many documnents up....each time I add something it ends up adding another and I can't delete them....tough to wade through them all
[11:50] <Randomskk> it was made inapril
[11:50] <wb8elk> I thought I hadn't changed anything since then...but I added the CCITT
[11:51] <wb8elk> I have to run to the launchsite now....any chance you all can fix that doc?
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[11:51] <Randomskk> so you just made a flight doc?
[11:51] <Randomskk> that'l need approving if it's new
[11:52] <ibanezmatt13> Ok, The soldering iron is set up, I'm ready to solder. Not quite sure exactly what I'm doing yet though
[11:52] <wb8elk> I just did a flight doc
[11:52] <wb8elk> at least I think I did...no indication that it completed here
[11:52] <wb8elk> I'm running WB8ELK and WB8ELK2....with CCITT
[11:52] <Randomskk> it should have given you a flight document ID to get approved
[11:53] <Randomskk> one sec
[11:53] <ibanezmatt13> ping mfa298
[11:53] <Randomskk> did you make one flight doc for WB8ELK and one for WB8ELK2?
[11:53] <Randomskk> hmm no that's an old one
[11:54] <Randomskk> not sure it got saved at all
[11:54] <Phil_M0DNY> vk3bq: Nothing turning up on the upload logs, try closing dl-fldigi and re-opening.
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[11:54] <Phil_M0DNY> vk3bq: As I say that...
[11:54] <Randomskk> wb8elk: I suggest you just copy the most appropriate WB8ELK payload config and set it to CCITT and then save
[11:54] <chris_99> http://www.bbc.co.uk/news/technology-22905199
[11:54] <Randomskk> that should just work
[11:55] <ibanezmatt13> I'm ready to solder :) Shall I have the unregulated battery 9v on the board too? Then connect the two regulators to this 9v rail. Then go from these regulators to rails on the board?
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[11:56] <eroomde> Randomskk: i just bought a thinkpad
[11:56] <eroomde> BNW
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[11:57] <Randomskk> eroomde: ooh I saw elsewhere, the x200s or whatever?
[11:57] <Randomskk> looks v nice. I like thinkpad X series
[11:57] <Laurenceb__> newer "thinkpads" are lame
[11:57] <Randomskk> though I think I'd still have a MBA for a laptop and a big desktop for my main workstation :P
[11:58] <eroomde> that's what i have now
[11:58] <eroomde> but i do want a mobile ubuntu machine for work
[11:58] <Randomskk> fair enough
[11:58] <eroomde> just need something in the electronics lab or firing bay
[11:58] <Randomskk> yea
[11:58] <Randomskk> makes sense
[11:58] <eroomde> also the vert resolution is 900 pixels
[11:58] <eroomde> which is crucially enough for eagle
[11:59] <eroomde> whereas the MBA 11's is slightly too low
[11:59] <eroomde> which upsets me always
[11:59] <Randomskk> mm
[12:01] <eroomde> so we'll see
[12:05] <ibanezmatt13> So from my 9V power supply, I go into one of the rails on the stripboard, then I connect the two regulators to this 9V rail. Is that correct? And also, when I'm connecting things to the Pi's GPIO header, temporarily can I still use jumper cables?
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[12:07] <wb8elk> launching at GPSL in one hour...on my way to launchsite
[12:08] <mfa298> ibanezmatt13: pong
[12:08] <ibanezmatt13> Hi :)
[12:08] <ibanezmatt13> I'm about to solder but I'm still unsure
[12:08] <mfa298> Sorry, was afk, if it's about the soldering. you can probably do it either way but I'd probably take the 9v onto the board as well
[12:09] <ibanezmatt13> ok, so when I'm connecting things to the Pi's GPIO, can I just stick to jumper cables temporarily
[12:09] <ibanezmatt13> I can always change it I guess
[12:09] <mfa298> If you've not done soldering before you might want to try playing with some stuff that doesn't matter first.
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[12:09] <fsphil> and use flux
[12:09] <mfa298> I'd stick with the jumpers for now on the gpio.
[12:09] <eroomde> and the force
[12:10] <eroomde> tho i don;t recommend shutting your eyes
[12:10] <fsphil> the force is good if you have it
[12:10] <ibanezmatt13> I've done soldering before plenty of times, but I just need to be sure as to what I'm doing for this circuit.
[12:11] <mfa298> Well you've got a layout so work with that.
[12:11] <ibanezmatt13> Ok, I'll set it all up
[12:11] <mfa298> you might want to mark each bit on the layout once you've soldered it onto the board so you can easily see on the layout whats left to do
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[12:12] <ibanezmatt13> good idea
[12:13] <mfa298> although for a lot of it you just need to find what works for you.
[12:14] <ibanezmatt13> Yeah, I'll leave the NTX2 and uBlox until I'm sure it's ok
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[12:26] <Laurenceb__> very high voltage battery
[12:28] <Darkside> yeah a cap has failed
[12:28] <Darkside> so the readings are stuffed
[12:32] <SP9UOB-Tom> PICO5 chasing :-) http://www.youtube.com/watch?v=_lcELEIMLvU i also meet roe-deer :-)
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[12:33] <Upu> that looked nice and easy to find
[12:33] <Upu> still inflated :)
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[12:34] <SP9UOB-Tom> Upu: it got tangled into the grass, wien I untangle(?) it it almost escaped me - i think it was thermal effect
[12:34] <steve_____> ibanwzmatt13: you can buy a header socket that will fit a raspberry pi gpio cable perhaps its best to use something like that rather than soldering directly on to the GPIO pins
[12:34] <SP9UOB-Tom> Upu: it got tangled into the grass, when I untangle(?) it it almost escaped me - i think it was thermal effect
[12:35] <Upu> relaunch :@)
[12:35] <steve_____> alternatively you could cut the end off a GPIO cable and solder the wires from the cut off end on to the PCB
[12:36] <SP9UOB-Tom> Upu: i give it to my kids :-) Im planning to relaunch with HWOYEE 100g
[12:36] <Upu> well try get the ascent rate to 0.8 m/s and hit max altitude at sun set
[12:36] <Upu> it has worked well for Darkside
[12:36] <ibanezmatt13> steve_____: I could do that, but isn't there a risk of the jumper cables detaching from the Pi's GPIO?
[12:36] <steve_____> I am not an expert however I have heard here that a rule of thumb is if your payload can survive a drop down the stairs then it is ok
[12:37] <steve_____> why not cable tie across the top of the pie strapping it on
[12:37] <steve_____> put three on to be sure
[12:38] <steve_____> but as I say I am a long way away from being an expert
[12:38] <adhoc> steve_____: thats what makes it so much fun =)
[12:38] <steve_____> I don think it would come off - especially if you pack it in
[12:38] <ibanezmatt13> yeah, well I'm gonna use jumper cables first anyway, I can always modify them
[12:38] <steve_____> to the payload
[12:39] <ibanezmatt13> I'll definitely do that, thanks
[12:39] <SP9UOB-Tom> Upu: i'll try tonight
[12:39] <ibanezmatt13> dave has used one of those headers
[12:41] <daveake> A full (26-way ?) header isn't going to come off
[12:41] <daveake> They need a fair pull to remove
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[12:43] <ibanezmatt13> I was thinking of just using jumper cables but I've changed my mind, I'll get one of those 26pin headers
[12:43] <steve_____> I suspect it may be better if you cut the end off a GPIO cable and solder the wires directly on to the PCB
[12:44] <steve_____> Thats what I would do
[12:44] <steve_____> then you can layout your PCB better
[12:44] <steve_____> and you only need to connect the wires you are going to use
[12:45] <ibanezmatt13> I could do that also, I'll have a think
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[12:52] <ibanezmatt13> Can I connect the VCC rail on the NTX2 to the EN rail as opposed to connecting VCC and EN separately to the 3.3v rail?
[12:53] <mfa298> yes
[12:53] <ibanezmatt13> ok
[12:53] <mfa298> isn't that what you drew in the 2nd version last night ?
[12:53] <ibanezmatt13> I don't think I modified that part
[12:55] <mfa298> ah ok, I remember it being talked about
[12:55] <mfa298> looking at https://www.dropbox.com/s/zte8kcchty1e0cb/photo%20%285%29.jpg you did connect vcc or en on the ntx2
[12:57] <ibanezmatt13> oh yes I did, sorry. i'm currently uploading a pic of what I've done so far
[12:59] <ibanezmatt13> https://www.dropbox.com/s/ekwtsrmc11z9ngl/WP_000076.jpg
[13:00] <ibanezmatt13> Shocking quality
[13:00] <ibanezmatt13> But that's it so far
[13:00] <ibanezmatt13> that ok?
[13:01] <chrisstubbs> are the components on the same side as the copper?
[13:01] <ibanezmatt13> no
[13:01] <ibanezmatt13> That side you can see is not the copper side
[13:01] <mfa298> looks reasonable.
[13:02] <chrisstubbs> ah good just checking, looked like it was :P
[13:02] <ibanezmatt13> ok. The only hard part really is connecting things off the stripboard to the stripboard...
[13:02] <mfa298> chrisstubbs: I was wondering the same but assumed not as there was no sign of solder
[13:02] <ibanezmatt13> I'll cross that when I get to it though
[13:02] <ibanezmatt13> I've not actually soldered it yet, that's the layout. I'm gonna solder those parts onto it now
[13:03] <mfa298> I'd have cur the vcc/en wire *much* shorter. But that takes practice.
[13:03] <mfa298> s/cur/cut/
[13:03] <ibanezmatt13> I'll try and cut it shorter...
[13:03] <chrisstubbs> ibanezmatt13, pliers and wire cutters help
[13:04] <ibanezmatt13> already got some :) They do
[13:04] <mfa298> I aim to have everything flat on the board even when it's as short as that.
[13:04] <chrisstubbs> when you start getting really short I dont find wire strippers helpful
[13:05] <ibanezmatt13> Ok, it's shorter now. It fits perfectly
[13:06] <ibanezmatt13> Ok, off soldering. I'll stay online but I may not reply for some time.
[13:06] <mfa298> I've stopped using wire strippers for most things. I tend to just use a sharp knife (carefully). Works on all cable sizes.
[13:19] <gb73d> http://www.nasa.gov/multimedia/nasatv/
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[13:25] <vk6qi> Darkside: Mark are you still on?
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[13:28] <Darkside> vk6qi: yes
[13:28] <Darkside> just
[13:29] <ibanezmatt13> Quick question
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[13:30] <ibanezmatt13> If say the legs of two resistors are supposed to be soldered onto the same rail on the stripboard, does it matter if the solder connects the two of them? The to legs are soldered onto the same rail but a little solder is connecting the two directly together though they are supposed to be connected on the same rail anyway
[13:30] <ibanezmatt13> Is that much of an issue?
[13:30] <vk6qi> Darkside: Starting to receive balloon now. Can't seem to get the software to start in HAB mode. Any suggestions?
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[13:31] <Darkside> vk6qi: what OS
[13:32] <Darkside> on windows there's a separate shortcut
[13:32] <Darkside> in mac it defaults to hab mode
[13:32] <Darkside> on linux you stsrt it from a terminal with dl-fldigi --hav
[13:32] <vk6qi> dl-fldigi, per the Project Horus website.
[13:32] <Darkside> hab*
[13:33] <Hix> ibanezmatt13: if they share a rail solder will not affect things
[13:33] <Darkside> vk6qi: http://habhub.org/files/dl-fldigi/dl-fldigi-DL3.1-windows-2abd6a7.exe that file?
[13:34] <vk6qi> I'm using Windows.
[13:34] <Darkside> thats the latest version
[13:34] <Darkside> ok
[13:34] <Darkside> in which case it shoudl have made a shortcut with hab mode
[13:34] <vk3bq> 5qi, hope i can continue to give you spots.. radio will stay on, bed for me..
[13:34] <Hix> "C:\Program Files (x86)\Dl-Fldigi-3.21.50\dl-fldigi.exe" --hab
[13:35] <ibanezmatt13> Hix: Thanks
[13:35] <Darkside> vk3bq: thanks
[13:35] <Hix> is the command for starting in HAB mode obv replace directory with yours
[13:35] <Darkside> Hix: the windows intaller makes shortcuts
[13:35] <Darkside> so you just choose the one that says 'hab mode'
[13:35] <Darkside> you dont need to mess with anything
[13:35] <Hix> sure - if he couldnt find it though just paste into cmd
[13:35] <Darkside> k
[13:38] <Darkside> ok i really need to sleep
[13:38] <Hix> gn Darkside
[13:39] Action: Hix is having an inordinate amount of fun with an AVT and some servos. If only I had an IMU :/
[13:39] <Hix> *AVR
[13:40] <Chetic> what's an IMU?
[13:41] <daveake> Inertial measurement unit
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[13:46] <ibanezmatt13> mfa298: I've finished soldering those parts that were on that picture.
[13:47] <ibanezmatt13> Not sure what to do next
[13:47] <mfa298> I'd probably go for wires, resitors, capacitors
[13:48] <ibanezmatt13> All resistors are done
[13:48] <mfa298> as the first components,
[13:48] <ibanezmatt13> Should I work on getting some power to the components? I.e, the regulators?
[13:48] <mfa298> things that might be more damagable by heat towards the end
[13:49] <Hix> expensive bits last after checking the board with the DMM
[13:49] <ibanezmatt13> So I need an unregulated 9V rail, a regulated 3.3v rail and the Pi's 3.3v rail. I guess I don't need a 5v rail as that can go from one reg straight to the Pi
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[13:50] <ibanezmatt13> Correct?
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[13:50] <mfa298> not sure what I'd go for in your case. wires off the board could make it more annoying to solder other stuff
[13:50] <ibanezmatt13> I could work on connections for the GPS, the wires to the different rails?
[13:51] <mfa298> for the 5v line it all depends on what you want to do.
[13:51] <ibanezmatt13> 5v regulator will only be powering Pi
[13:52] <ibanezmatt13> Makes sense to keep wires off the stripboard if unecessaary I suppose
[13:52] <mfa298> If you use a 26way header I think you could feed 5v into the pi via that instead of the test point in which case 5v on your PCB might make more sense. If you want to use the test points then there's not much point putting it onto the stripboard
[13:54] <ibanezmatt13> Even if I use the 26 way header, couldn't I just go from the 5v reg into the header? Which is better for me?
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[13:57] <mfa298> the easiest way to wire onto the header is with the matching connector which works best with a ribbon cable at which point you would probably want to take them all onto the stripboard.
[13:58] <mfa298> a lot of this comes down to personal preference and what makes sense for you
[13:58] <ibanezmatt13> So you think I could use a ribbon cable to bring all 26 connections onto the stripboard? Hmm
[13:59] <ibanezmatt13> No sure whether that will jeopardize my current setup
[13:59] <mfa298> you probably don't want to connect all of them, just the ones you wanted.
[14:00] <mfa298> at which point you can either connect the 5v line as well and use that to feed power to the pi. Or not connect it and use the Test Points
[14:00] <ibanezmatt13> So with this 26 way header which connects onto the Pi's GPIO, how can I just connect one by one from the stripboard to that header yet keep the wires secure in the header?
[14:01] <mfa298> From the Pi point of view I don't know if there's any benefit of using the Test points over the GPIO for power.
[14:01] <ibanezmatt13> So if I give the testpoints a miss and use the header, how can I keep connections onto the header secure?
[14:01] <mfa298> I'd have the 26way connector with 26way ribbon cable going to the pi. and then just solder the wires you want onto the pcb
[14:02] <ibanezmatt13> For example, a normal piece of wire going from the TXD rail to the RX pin on the Pi
[14:02] <ibanezmatt13> Oh I see
[14:03] <ibanezmatt13> So the ribbon cable going from the Pi GPIO, I can split that up into individual wires
[14:03] <ibanezmatt13> ?
[14:03] <mfa298> yes
[14:03] <ibanezmatt13> I was thinking of using a ribbon cable with the connector on both ends, that's why I was confused
[14:04] <mfa298> you could do that as well but you'll have to take care soldering it onto the board and you probably would need to redo your layout
[14:04] <daveake> Personally, I'd go for pin headers at each end, because the wires in those cables won't stand much bending where you solder them. However if you sort that mechanically it should be OK
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[14:05] <ibanezmatt13> ok, I'll do that then
[14:05] <ibanezmatt13> So, unregulated 9V rail, regulated 5v rail, regulated 3.3v rail, 3.3v rail from Pi. Are they the rails I need on the board?
[14:08] <mfa298> sounds reasonable
[14:08] <ibanezmatt13> Ok :)
[14:10] <ibanezmatt13> mfa298: the stanley knife wont cut the tracks
[14:11] <mfa298> drill bit might work better
[14:11] <ibanezmatt13> What size?
[14:11] <mfa298> not sure, something big enough to remove the track and a gentle twist between your fingers
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[14:12] <ibanezmatt13> I'll see what I can fin
[14:12] <ibanezmatt13> find*
[14:12] <mfa298> if you're using a knife it needs a sharp blade
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[14:23] <ibanezmatt13> mfa298: These drill bits don't seem to do much either
[14:23] <ibanezmatt13> What will the stripboard look like on the part where it is broken out?
[14:23] <ibanezmatt13> It just looks scratched when I do it
[14:24] <mfa298> should be like the stripboard between the copper tracks
[14:25] <mfa298> the aim is to just break the copper track
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[14:25] <ibanezmatt13> it looks pretty much the same
[14:26] <ibanezmatt13> really don't think I'm succeeding here
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[14:26] <chrisstubbs> press harder
[14:26] <ibanezmatt13> I'm pressing very hard
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[14:27] <chrisstubbs> http://bit.ly/17OnL3P
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[14:30] <SpeedEvil> I suppose everyones seen http://tech.slashdot.org/story/13/06/15/120200/google-floats-balloons-for-free-wi-fi ?
[14:30] <ibanezmatt13> Sorry, I was doing the complete wrong thing. I didn't even have a drill at hand :
[14:30] <ibanezmatt13> :\
[14:31] <ibanezmatt13> So I need a small drill bit on a small drill and I just need to widen the holes a little to get rid of the cooper track
[14:31] <chrisstubbs> yeah you can get drill bits on a handle to do it that work well
[14:32] <mfa298> chrisstubbs: you need to invest in a steel ruler for photos like that :p
[14:32] <chrisstubbs> Not my photo!
[14:32] <chrisstubbs> just gogoled it
[14:32] <schoppenhauer> hello.
[14:32] <chrisstubbs> if you use a power drill i expect you will just drill straight through
[14:33] <ibanezmatt13> Drilling straight through one hole would be ok?
[14:33] <mfa298> same if your using a stanley knife you're just aiming to remove enough copper to break the track
[14:34] <ibanezmatt13> Yep, I think I got it now, back in a few mins
[14:34] <chrisstubbs> if i use a stanley i try to cut it in a cicular fashion
[14:34] <mfa298> ideally you don't want to go all the way through as it will weaken the board - especially if you have several together
[14:34] <chrisstubbs> put the point in and turn the knife
[14:35] <ibanezmatt13> ok, I'll just do it like on that picture
[14:35] <ibanezmatt13> Thanks
[14:36] <schoppenhauer> after I read a bit of stuff, it seems like for using radio in germany generally requires a license. i also found a few people who only use GSM/UMTS to send the position. so they have to wait until the balloon lands again. any expieriences with this?
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[14:37] <eroomde> schoppenhauer: generally less prferred due to the lack of data during the flight and that it's often hard to get gsm signal when you're right on the ground
[14:38] <eroomde> Lunar_lander who is often on here has launched from germany
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[14:38] <Phil_M0DNY> schoppenhauer: I don't think you need a license for using the 434MHz 10mW RTTY.
[14:38] <schoppenhauer> eroomde: yes, I talked to him already about insurance.
[14:39] <eroomde> oh right
[14:39] <schoppenhauer> I'll wait till he comes.
[14:40] <fsphil> GSM is a good backup
[14:40] <fsphil> but definitly don't rely on it
[14:40] <schoppenhauer> Phil_M0DNY: I can remember I already looked for it. it seemed like it is not common in germany.
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[14:41] <Phil_M0DNY> Using it on balloons isn't :)
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[14:41] <Phil_M0DNY> But it's got many advantages over GSM.
[14:41] <Phil_M0DNY> And was used by Lunar Lander I believe.
[14:41] <fsphil> yep
[14:42] <schoppenhauer> ah ok
[14:42] <schoppenhauer> then I will ask him again. in general, there is no problem to get a radio license. but it takes time to learn and get a certificate for this.
[14:43] <fsphil> that's why 434mhz is nice
[14:43] <fsphil> you don't need any license
[14:43] <Phil_M0DNY> the 434MHz band we use is license-exempt. You don't need a radio license.
[14:43] <fsphil> in europe at least
[14:44] <Hix> woo hoo lightning putting in an appearance
[14:44] <Hix> http://i.imgur.com/jxT0alq.png
[14:45] <eroomde> none here
[14:45] <eroomde> very rainy and now clear skies again
[14:46] <Hix> oxon or london eroomde
[14:47] <eroomde> oxon
[14:47] <eroomde> i think we've got everything you're getting a bit before
[14:48] <fsphil> oh nice one Hix
[14:48] <Hix> seems so eroomde http://www.raintoday.co.uk/
[14:48] <fsphil> we've got a slightly above zero chance here today
[14:49] <Hix> fsphil unfortunately, I'm knees deep in arduino and breadboarding so not out with the cameraaxe for lightning shots
[14:49] <Hix> but sods law dictates it would bugger off the minute i set up anyhow
[14:50] <Hix> I do love an electrical storm
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[14:50] <chrisstubbs> HAB lightning conductor that triggers the shutter on a camera?
[14:50] <SpeedEvil> I prefer strong force storms.
[14:51] <Hix> cameraaxe already does it chrisstubbs its avr based too
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[14:52] <chrisstubbs> wow thats neat!
[14:52] <chrisstubbs> just had a look at their site
[14:52] <Hix> I've got a pcb if you want to make one
[14:53] <Hix> in fact I've got 9 ;p
[14:53] <Hix> oh, hold fire, I've got enough bits to make 2 in fact. LCDs the lot
[14:53] <Hix> completely forgot about that box of bits
[14:57] <chrisstubbs> Thanks, but I cant really imagine myself using it
[14:57] <Hix> nps
[14:58] <chrisstubbs> cool bit of kit if your into rigging that kinda thing up though!
[14:58] <Hix> they are ace. Keep meaning to do something with it and my mates shiny new air rifle
[15:01] <schoppenhauer> ok, according to page 8 of http://www.gesetze-im-internet.de/bundesrecht/afuv_2005/gesamt.pdf, one needs a license for 434MHz 10mW RTTY
[15:02] <Phil_M0DNY> schoppenhauer: It is also an Amateur Radio band.
[15:02] <schoppenhauer> not even this. the highest license one can get seems to be .75 MhZ
[15:02] <Phil_M0DNY> But it is also used by car key fobs, and you don't need licenses for those!
[15:03] <Hix> driving licence ;p
[15:03] <Phil_M0DNY> hehe
[15:03] <schoppenhauer> Phil_M0DNY: probably because they are too weak.
[15:04] <Phil_M0DNY> schoppenhauer: Our transmitter are the same power as car key fobs
[15:04] <Phil_M0DNY> But by using RTTY, and with a decent antenna, we can get a *lot* of range.
[15:04] <schoppenhauer> well, I will try to get such a certificate, but I will not be able to manage this this year anymore :/
[15:05] <schoppenhauer> so the question is whether GSM/umts might be sufficient.
[15:05] <Hix> i really don't think you need to be licences
[15:05] <Hix> licenced
[15:06] <Phil_M0DNY> You don't for anywhere in Europe afaik.
[15:07] <Phil_M0DNY> GSM tends to be about 50% successful from what I've heard.
[15:07] <Randomskk> I'm sure we've had german HABs on 434 without a ham license
[15:10] <schoppenhauer> Phil_M0DNY: hm. would be worth the risk @50%. the problem is, that I cannot find any useful information about it for germany.
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[15:13] <Hix> schoppenhauer: these are used as cheap backup devices http://www.ebay.co.uk/itm/Simple-Mini-Personal-GPS-Tracker-Real-Time-Tracking-GSM-GPRS-/171057747494?
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[15:14] <schoppenhauer> Hix: ah thanks. this looks nice!
[15:15] <schoppenhauer> especially this year (as we will probably not have useful "summer"), I would prefer a really cheap flight with higher risk of failure.
[15:15] <ibanezmatt13> I "think" I've finished the stripboard; apart from the off-stripboard parts. I'll do that tomorrow.
[15:15] <schoppenhauer> just to get some expierience.
[15:15] <Hix> but I'd still recommend RTTY as primary. There is a vast network of listeners so recovery is far more likely
[15:15] <Hix> where in Deutschland are you schoppenhauer?
[15:16] <schoppenhauer> I will look for it, but as far as I understand, I need a number, and I only get this number when doing a test. and these tests are not often per year.
[15:16] <schoppenhauer> Hix: bavaria
[15:17] <schoppenhauer> Hix: currently munich, but I will probably start the balloon - if any - from ansbach.
[15:17] <mclane> schoppenhauer: where in bavaria?
[15:17] <Hix> best bet it to catch Lunar when he's on here to advise on RTTY
[15:18] <schoppenhauer> mclane: munich/ansbach
[15:18] <mclane> I am in Regensburg
[15:18] <schoppenhauer> mclane: hi.
[15:18] <mclane> we have launched already 4 balloons
[15:18] <Geoff-G8DHE_> schoppenhauer Look up LPD433 or SRD433 in German search engines , this will explain the licence exempt use of the band for these devices.
[15:19] <schoppenhauer> mclane: ah, ok. so you probably know about the legal stuff.
[15:19] <Hix> there you go. good news :)
[15:19] <mclane> the NTX2 should be licence exempt
[15:19] <Hix> schoppenhauer: http://ava.upuaut.net/store/index.php?route=product/category&path=71_63 you can get them from Upu
[15:20] <mclane> it has the necessary ce sign
[15:22] <x-f> anybody knows, what's the local time for Horus?
[15:22] <Hix> there are a lot of listeners in .CZ from memory too
[15:22] <schoppenhauer> mclane: do I still need an "Amateurfunkzeugnis"?
[15:23] <schoppenhauer> Hix: thx!
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[15:25] <Geoff-G8DHE_> Users of the the Low Power Devices in the 433 band do not need a licence your goverment holds the licence for you on your behalf.
[15:25] <mclane> schopenhauer: no
[15:26] <mclane> you do not need an Amateurfunkzeugnis for your key, weather station etc. either
[15:26] <Hix> alles gut, dann
[15:27] <mclane> schoppenhauer: do you have a reciever
[15:27] <mclane> ?
[15:27] <schoppenhauer> mclane: no.
[15:27] <schoppenhauer> mclane: I am a beginner.
[15:28] <schoppenhauer> mclane: I have nothing yet :3
[15:28] <iain_g4sgx> I have a question on HAB RTTY transmission. In USB, the Mark is left on the waterfall and the Space is higher in frequency yes?
[15:28] <mclane> we will probably launch next saturday
[15:29] <fsphil> I believe mark is the higher frequency tone
[15:29] <Geoff-G8DHE_> Agree Mark is always the higher
[15:29] <schoppenhauer> mclane: ah. hm. can I maybe come and watch it? (just out of curiousity - and I will be in munich, regensburg is only an hour away)
[15:30] <mclane> you are welcome.
[15:31] <schoppenhauer> nice! what time and where will this be?
[15:31] <mclane> we will publish details on the ukhas mailing list middle of next week
[15:31] <schoppenhauer> mclane: ah thx.
[15:32] <mclane> launch location is N49.03 E11.92
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[15:33] <mclane> we have a NOTAM for 9.30 CEST
[15:35] <iain_g4sgx> OK good thanks,
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[15:38] <ibanezmatt13> ping mfa298
[15:38] <ibanezmatt13> mfa298: https://www.dropbox.com/s/jlkrt0eqxofkw7n/WP_000079.jpg
[15:39] <number10> DanielRichman: jonsowman Randomskk some pics of the balloon launch from Churchill http://www.flickr.com/photos/65839734@N04/sets/72157634142762676/
[15:39] <mfa298> ibanezmatt13: that's starting to look good
[15:40] <Randomskk> cool, cheers number10
[15:40] Nick change: Upu- -> Upu
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[15:41] <ibanezmatt13> mfa298: Just uploading one of the back
[15:42] <ibanezmatt13> https://www.dropbox.com/s/6cvcqojym2gmqmr/WP_000080.jpg
[15:42] <ibanezmatt13> I think I broke the tracks out ok where needed
[15:44] <ibanezmatt13> I checked with a magnifying glass the sides of the holes to check that no part of the copper track remained; I think it's ok
[15:45] <mfa298> you could always use a DMM to check for continuity (or lack of)
[15:45] <ibanezmatt13> I've not got a power supply yet
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[15:47] <mfa298> for the tracks use the resistance settings (or if you've got it a continuity setting). If it shows a low resistance (a few ohms) then you've not broken the track.
[15:47] <mfa298> if it's a high resistance then they're not connected
[15:48] <ibanezmatt13> There's a section on the DMM for resistance. I'll try it
[15:48] <mfa298> some DMM's have a buzzer for continuity as well which makes life easier
[15:48] <ibanezmatt13> Not that advanced :)
[15:49] <ibanezmatt13> What resistance value shall I set it to? 2000k 200k 20k 2000 200?
[15:49] <eroomde> depends on what you're expecting!
[15:49] <eroomde> tat's just the max igt can show
[15:49] <eroomde> it*
[15:49] <ibanezmatt13> Ah, I'll choose a low one
[15:50] <mfa298> if you're expecting continuity you want the low setting. If you want to check there;s not continuity you might be better with a high setting
[15:50] <ibanezmatt13> ok
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[15:52] <ibanezmatt13> broken out tracks are fine :)
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[15:56] <jcoxon> wow that flaot is awesome
[15:56] <fsphil> agreed
[15:56] <Upu> good effort isn't it :)
[15:57] <Upu> should be good until at least 10pm our time
[15:57] <jcoxon> what was teh ascent rate?
[15:57] <Upu> 0.8
[15:58] <Upu> but he hit 18km just as the sun went down
[15:58] <Upu> 100g
[15:58] <ibanezmatt13> I have this regulator with heatsink attached: https://www.dropbox.com/s/zgnkiyxi8k0unoe/WP_000082.jpg But I also have the same one with no heatsink attached. Shall I use both with heatsink, both without, or one of each?
[15:58] <eroomde> if you're operating them near their rated maximum load, keep the heatsinks
[15:59] <ibanezmatt13> According to the datasheet they can draw a maximum of 2A
[15:59] <ibanezmatt13> I'll probably be drawing just over 1A
[15:59] <Upu> any Aussies got a dial frequency for HORUS ?
[16:00] <fsphil> 1A is quite a lot
[16:00] <ibanezmatt13> It'll be less than 1A actually, using a model A
[16:00] <ibanezmatt13> sorry
[16:02] <ibanezmatt13> I was thinking that having no heatsink, the heat it outputs would actually help the temperature inside the payload. I've not got any heatsinks for anything else either
[16:02] <fsphil> heatsink won't change the overall heat output
[16:03] <fsphil> just stops the regulator getting too hot
[16:03] <ibanezmatt13> Ah right
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[16:03] <ibanezmatt13> So it's worth keeping the heatsinks then
[16:05] <fsphil> it's extra weight, if your regulator isn't getting hot without it then you probably don't need it
[16:06] <ibanezmatt13> it wasn't getting hot when I was powering both NTX2 and GPS. That's 9V in to 3.3V out
[16:07] <ibanezmatt13> I guess the 9V to 3.3v reg will generate more heat than the 9V to 5v reg? In which case, I could use the one with the heatsink for the 3.3v powering the ublox and the NTX2, and then I could use the one without the heatsink to power the Pi on 5v
[16:07] <fsphil> depends on the drain on it
[16:08] <fsphil> load*
[16:09] <fsphil> still not ideal though
[16:09] <ibanezmatt13> are there any better ways I could do this?
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[16:13] <Phil_M0DNY> Does HORUS have an idle tone?
[16:13] <fsphil> possibly not. you want the battery voltage to be higher than your highest voltage regulators drop out voltage
[16:13] <fsphil> even when nearly empty
[16:14] <ibanezmatt13> I think the regulator has a pretty low drop out voltage, I'll check it
[16:14] <fsphil> the 5V one is the one you need to watch
[16:14] <ibanezmatt13> Oh right, why's that?
[16:15] <fsphil> a draining battery would drop below it's min-voltage first
[16:15] <fsphil> -'
[16:15] <ibanezmatt13> ah of course
[16:16] <ibanezmatt13> Perhaps I should go for slightly more than 9V to be safe
[16:16] <fsphil> I was thinking the opposite :)
[16:17] <ibanezmatt13> less?
[16:17] <ibanezmatt13> Surely that would drain quicker?
[16:17] <fsphil> your extra voltage is just generating heat
[16:17] <ibanezmatt13> but won't the battery still drain at the same rate?
[16:20] <fsphil> when you wire cells in series, you increase the voltage not the amphours
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[16:22] <qyx_> but he has smps regulator
[16:22] <fsphil> a regulator with a 100ma load at 3.3v (0.33 watts), takes 100ma from the source. if that was 9v, then 9v @ 100mw is 0.9 watts
[16:22] <qyx_> few volts doesn't make difference
[16:23] <qyx_> and this doesn't apply also
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[16:24] <Phil_M0DNY> Anyone got a link to matt's java decoder around, I seem to have 'cleared up' my copy.
[16:25] <fsphil> https://github.com/mattbrejza/rtty_modem
[16:25] <mattbrejza> users.ecs.soton.ac.uk/mfb2g09/decoder for compiled versiom
[16:26] <Phil_M0DNY> cheers matt
[16:26] <qyx_> ibanezmatt13: if you have that lm2596 regulator that someone recommended you to buy, you can safely go to higher voltage
[16:26] <mattbrejza> np
[16:26] <Upu> Phil_M0DNY it seems to be in RV
[16:26] <Upu> anyway really afk :)
[16:26] <Phil_M0DNY> Upu: Nope, just got $$$$$$$HOBUS
[16:27] <Phil_M0DNY> Sorry, 4x$
[16:27] <fsphil> you don't need a higher voltage. just work out what your battery voltage is when drained, and make sure your 5V LDO works at at least that voltage
[16:28] <qyx_> he don't have ldo :)
[16:28] <qyx_> 17:58 < ibanezmatt13> I have this regulator with heatsink attached: https://www.dropbox.com/s/zgnkiyxi8k0unoe/WP_000082.jpg
[16:28] <ibanezmatt13> The regulator I have has a certain drop out voltage which I believe is quite low
[16:28] <fsphil> yikes, is that a regulator?
[16:28] <eroomde> that's an amps
[16:28] <ibanezmatt13> yep, that's what I have
[16:28] <eroomde> smps*
[16:29] <ibanezmatt13> They're supposedly really efficient, a lot more efficient than those linear regulators
[16:29] <fsphil> well forget everything I just said then
[16:29] <ibanezmatt13> :)
[16:29] <fsphil> I was talking about linears :)
[16:29] <ibanezmatt13> I did attach a picture :p
[16:29] <ibanezmatt13> So, heatsink or no heatsink?
[16:29] <fsphil> me and urls in IRC don't mix
[16:30] <fsphil> doubt you'd need it
[16:30] <ibanezmatt13> Ok, thanks :)
[16:30] <fsphil> just be aware that switching power supplies can be a source of noise too
[16:30] <qyx_> yep, depends on switcher, but for this lm2596 you shouldn't need any even at 1-2A
[16:30] <fsphil> but they've been used successfuly before
[16:31] <fsphil> eevblog has a nice video on generating negative voltages. totally OT but I thought it was quite neat
[16:33] <ibanezmatt13> I think the LM2596 is good for minimising noise too, but I may be wrong
[16:34] <eroomde> probably not. they're only noisy because the work by switching current very fast
[16:34] <eroomde> remember what we were saying about rapidly changing currents moving around are kinda like diving rf through an antenna
[16:35] <ibanezmatt13> ah right, should be fine then
[16:35] <eroomde> so basically a lot of the engineering to make a SMPS is to layout everything well to minimise the size of the current loops
[16:36] <eroomde> and also how you connect the output to the rest of the board
[16:36] <ibanezmatt13> I see
[16:36] <eroomde> because you have an off-the-shelf module you probably don't have to worry about any of this, it will have been made by someone who (hopefully!) knows what they're doing
[16:36] <ibanezmatt13> I hope so
[16:36] <ibanezmatt13> By the way, after soldering today, I purposely left the three rails for the 3 pins on the NTX2 for the SMA connector to go to the antenna. I assume this is right?
[16:36] <eroomde> but if you ever do lay one out on a pcb yourself, remember it's important to get the layout right and there's lots of help to be found in that regard on this channel
[16:37] <eroomde> yep that's right
[16:37] <eroomde> keep that as short as possible too
[16:37] <ibanezmatt13> ok, thanks eroomde :)
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[16:38] <ibanezmatt13> where can I find the right SMA connector for the 3 stripboard rails for the NTX2?
[16:38] <eroomde> good question
[16:38] <ibanezmatt13> I assume a 3 pin SMA
[16:38] <mattbrejza> the ones upu sells should be fine
[16:38] <fsphil> yep
[16:38] <mattbrejza> the ones that stradle the board
[16:39] <eroomde> the board-edge ones should work well
[16:39] <ibanezmatt13> Didn't know upu sold those things, will have a look, thanks
[16:39] <eroomde> you could probably use a vertical one too
[16:39] <fsphil> http://ava.upuaut.net/store/index.php?route=product/product&path=71_66&product_id=59
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[16:39] <eroomde> which has 4 ground pins around a central rf pin
[16:39] <mattbrejza> there are very few things you cant bodge onto stripboard
[16:39] <eroomde> Randomskk has a very good diagram about how to connect the ntx2 to that kind of connector
[16:39] <fsphil> you will probably need to drill the holes bigger for the four GND connections
[16:39] <fsphil> on my stripboard they where just slightly too big to fit
[16:40] <Randomskk> https://randomskk.net/u/rfout.png
[16:41] <eroomde> some kind of cad program from the future
[16:41] <ibanezmatt13> thank you Randomskk
[16:41] <fsphil> braincad
[16:41] <ibanezmatt13> So I need the 5 pin one
[16:41] <eroomde> nope
[16:41] <eroomde> you just can use it
[16:41] <ibanezmatt13> Oh
[16:41] <eroomde> but you can also use the board-edge ones
[16:42] <fsphil> oh yes
[16:42] <eroomde> doesn't matter
[16:42] <mattbrejza> or http://ava.upuaut.net/store/index.php?route=product/product&path=71_66&product_id=74
[16:42] <fsphil> the edge ones would be simpler for stripboard
[16:42] <eroomde> whatever is most convenient for your layout
[16:42] <fsphil> though stripboard is quite thick
[16:42] <eroomde> i would go for whatever lets you mount it close to the ntx2 pins
[16:42] <mattbrejza> stripboard is 1.6mm?
[16:42] <ibanezmatt13> 2.54mm
[16:42] <eroomde> if it's significant difference between one and the other
[16:42] <fsphil> I must check
[16:42] <ibanezmatt13> I think
[16:43] <fsphil> that's the pin spacing ibanezmatt13
[16:43] <ibanezmatt13> ah ok, dismiss that
[16:43] <fsphil> the edge connectors fit.. well, onto the edge :)
[16:43] <fsphil> I have one here.. lemme check
[16:43] <mattbrejza> well the stripbord i have is the same thickness as a bit of 1.6mm board
[16:43] <ibanezmatt13> Would it matter that the connector would be on the opposite side of the stripboard?
[16:43] <ibanezmatt13> Same rails
[16:44] <eroomde> not really
[16:44] <ibanezmatt13> that's good
[16:45] <fsphil> ah fits perfectly
[16:45] <eroomde> but, well, the central pin has got to be in contact with the copper
[16:45] <ibanezmatt13> so http://ava.upuaut.net/store/index.php?route=product/product&path=71_66&product_id=59 is exactly what I need?
[16:45] <mattbrejza> the sma should be near the ntx2 if thats what you ment
[16:45] <ibanezmatt13> err, I think it'll be ok
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[16:47] <ibanezmatt13> I'll get one of those then :)
[16:47] <ibanezmatt13> http://ava.upuaut.net/store/index.php?route=product/product&path=71_66&product_id=59
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[16:49] <fsphil> http://i.imgur.com/H8zlOQa.jpg
[16:50] <ibanezmatt13> that's confusing
[16:50] <ibanezmatt13> why is it attached that way?
[16:51] <ibanezmatt13> oh i see, just to show measurement
[16:51] <ibanezmatt13> I thought it was an actual connection
[16:53] <Phil_M0DNY> Waiting for horus to come over the horizon is painfully slow
[16:53] <ibanezmatt13> I'm not sure whether I should get http://ava.upuaut.net/store/index.php?route=product/product&path=71_66&product_id=59 or http://ava.upuaut.net/store/index.php?route=product/product&path=71_66&product_id=72
[16:54] <jcoxon> hey fsphil
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[16:56] <Ugi> Hi guys - Horous doing well then!
[16:56] <Ugi> Horus
[16:56] <Upu> end launch ones ibanezmatt13
[16:56] <Upu> abuot 4 hours till sunrise
[16:57] <ibanezmatt13> why the end launch one over the other one ?
[16:57] <Ugi> Is Titan launching today, or just testing?
[16:57] <Upu> it will fit on your veroboard better
[16:57] <Ugi> reckon it will warm and rise when the sun comes up?
[16:57] <Upu> yep
[16:58] <Ugi> shame if it bursts then but 16 hours so far is pretty impressive
[16:58] <ibanezmatt13> thanks Upu
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[17:02] <GMT> anyone have any further info on that launch from Hastings this evening?
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[17:04] <m3eav> GMT, no heard nothing abotu it
[17:04] <m3eav> i asked here earlier too
[17:05] <m3eav> HABuino going up today?
[17:05] <m3eav> if so what frreq?
[17:06] <jcoxon> evening all, i'm playing with a baofeng uv3r+ cheap radio
[17:06] <jcoxon> trying to make it do some aprs
[17:06] <m3eav> ugh, mad ein china
[17:06] <jcoxon> to trigger PTT i need to connect the sleeve of both the mic and hte spk pins
[17:07] <jcoxon> but doing that massively upsets my micro etc connected to the mic pin
[17:07] Nick change: MichaelC|Sleep -> MichaelC
[17:07] <jcoxon> what sort of approach would be good to seperate this out? wondering if some caps need to appear
[17:09] <SP9UOB-Tom> my daughter is working on HAM radio - Amateur Radio Kids day :-)) http://www.youtube.com/watch?v=CrG0ihdxSXw
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[17:18] <mikestir> making good progress on an AJAX interface for fldigi here
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[17:29] <Tommo> horus has 3 hours before sunrise... will it make the other side of oz??
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[17:30] <tiouk_com> m3eav, HABuino not going up today, just testing.
[17:30] <m3eav> yeha i guesse dthat nowe height went down again:-)
[17:30] <m3eav> tanks
[17:32] <Tommo> when I told my wife the australians had done a floater, she thought it was a bad thing....women hey!!
[17:33] <fsphil> howdy jcoxon
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[17:34] <Tommo> and worst still, since ive been tracking hab ballons, she thinks im a geek and should take up a roer hobby like twitching?
[17:34] <fsphil> man this flight has a super solid float
[17:34] <Tommo> balloons
[17:35] <fsphil> twitching seems more a lifestyle than a hobby
[17:37] <Tommo> nearly a 10 hour float, youve gota be proud of that
[17:38] <x-f> Horus has travelled 730 km now
[17:38] <x-f> still a tiny portion of the whole 'straya
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[17:40] <Tommo> fsphil, i just thought .... my wife would rather me take out a pair of binoculars and spy on birds... she's a perv
[17:42] <Tommo> and anyway, it's against section 2.1 of my restraining ordert
[17:42] <x-f> binoculars?
[17:43] <Tommo> yeas, high powered glasses for the optical y challenged
[17:44] <x-f> i mean, you can't use them for now?
[17:45] <LeoBodnar> Does jcoxon, use optocoupler
[17:45] <Laurenceb__> yes, thats what the binoculars are for
[17:45] <x-f> :|
[17:46] <Tommo> not until the judge removes the order
[17:49] <Tommo> and because of you guys I now know you cannot send an float to sprintf and you need to dtostrf...wtf, 2 weeks ago I was quite happy
[17:49] <eroomde> the stage you're going through probably has a name
[17:50] <fsphil> arduinoism?
[17:50] <fsphil> you can set some funky compiler flags and get float support in snprintf
[17:50] <fsphil> but easier not to bother
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[17:50] <Tommo> your just talking dirty
[17:52] <G7UXW> HABuino_1 is this going up today or just testing ???
[17:52] <Tommo> yea two weeks ago I was ..... what do you call it............thats it , married
[17:53] <LeoBodnar> Is there a way of retrieving past flights from http://spacenear.us/tracker/ back onto its map?
[17:54] <G7UXW> HABuino_1 what freq and what is the configureation
[17:54] <x-f> G7UXW, just testing
[17:54] <G7UXW> ok
[17:54] <fsphil> that'll be a test
[17:54] <fsphil> I've cleared it from the map, refresh
[17:55] <G7UXW> any flights tomorrow in the uk or near europe ??
[17:55] <fsphil> steve is launching tomorrow
[17:55] <fsphil> from Elsworth
[17:56] <number10> yes, possibly xaben50 434.450MHz - Callsign: HABLAB - 700Hz shift 100 baud 7N1 ASCII
[17:56] <number10> 434.250MHz - Callsign: XABEN1 - 650Hz shift 50 baud 7N1 ASCII
[17:56] <GMT> approx time?
[17:56] <x-f> "afternoon"
[17:56] <GMT> wow, that accurate!
[17:56] <G7UXW> HABuino_1 <<< Does this package have any video ??
[17:57] <WILLdude> Going to a local radio rally tomorrow.
[17:57] <x-f> GMT, it is very approximate :)
[17:57] <x-f> as you asked
[17:58] <Phil_M0DNY> WILLdude: Newbury?
[17:58] <x-f> what is a radio rally?
[17:58] <Phil_M0DNY> It's basically a meetup/garage boot sale
[17:58] <Phil_M0DNY> You get all the commercial vendors there as well, and local clubs have stands.
[17:59] <x-f> ah, nice
[17:59] <mfa298> often some interesting items as well as old electronics people want to get rid of.
[18:00] <tiouk_com> G7UXW: Not yet, just what you see in the telemetry. It is testing a MLX sensor to measure ground temp under the balloon
[18:01] <G7UXW> ok not suuper cool but cool enough
[18:02] <G7UXW> Is Newbury quality junk or just junk ??
[18:02] <Laurenceb__> epic business plan:
[18:02] <Phil_M0DNY> G7UXW: It's one of the better ones I think.
[18:02] <Laurenceb__> salvation army give £2/bag for goods
[18:02] <G7UXW> good been to too many where its just junk
[18:02] <Laurenceb__> charity shop next door have skip around back
[18:03] <Laurenceb__> full of excess goods
[18:03] <Laurenceb__> take bags from skip to shop :P
[18:04] <mfa298> G7UXW: when I went up a couple of years ago it looked to be a decent size.
[18:04] <mfa298> unfortunately I was a bit late getting up there and wasn't good weather so wasn't much interesting to see then.
[18:04] <Phil_M0DNY> gonzo_: What's the big rally near you coming up?
[18:05] <mfa298> Bournmouth is early August I think.
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[18:05] <Phil_M0DNY> Yep that's the one.
[18:05] <G7UXW> mfa298 went to mcmicheal last yer tried to sell a 2m dish and reciver gear no takers still in garage
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[18:07] <mfa298> I've not been to the mcmicheal rally
[18:08] <Phil_M0DNY> If you're selling anything other than HF gear or magmounts then it does seem you have to pick the right rally.
[18:08] <G7UXW> telling me
[18:08] <Phil_M0DNY> There's specific ones that ATV/EME/LF and other niches tend to go to and sell at.
[18:09] <Phil_M0DNY> And it can change from year to year it seems..
[18:09] <G7UXW> which are ???
[18:10] <Phil_M0DNY> THe london one is big for ATV, that's all I've nailed down so far, haven't been to many.
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[18:11] <G7UXW> Data eg pacto packet im my thing here in godalming
[18:11] <G7UXW> pactor
[18:11] <mfa298> Bournemouth looked to have a decent range of private / carboot type sellers so might get a better range of buyers although you're probably hoping for the right buyer.
[18:11] <Laurenceb__> is there a flight in the uk today?
[18:12] <Phil_M0DNY> Laurenceb__: Nope, tomorrow.
[18:12] <Laurenceb__> i c]
[18:13] <Laurenceb__> whats the horus velocity measured in?
[18:13] <Phil_M0DNY> mfa298: Bournemouth looked quite big from what I saw on the net.
[18:13] <Phil_M0DNY> Laurenceb__: kph I believe.
[18:13] <x-f> yep
[18:14] <Phil_M0DNY> mfa298: I was hoping there would be enough of G3KMI around to justify taking the toaster rack.
[18:14] <Phil_M0DNY> Doesn't look like it though.
[18:18] <mfa298> Phil_M0DNY: that would be quite impressive
[18:18] <mfa298> I think I spotted it driving up the avenue the other day as I was going the other way
[18:19] <Phil_M0DNY> Might drop them an email, they might be interested in turning up anyway.
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[18:22] <LeoBodnar> I am curious what happens to Ozzie floater at sunrise. It's only three hours away. What batteries are onboard?
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[18:22] <mfa298> I've got a feeling it used to go to some radio events (can't remember the stories properly now)
[18:22] <Phil_M0DNY> mfa298: Which rally is it, google is failing me?
[18:23] <Phil_M0DNY> Yeah G3KMI got free entry to the Bristol rally 2 years in a row when they took it, complete with halo antenna for 2m mobile ssb.
[18:23] <Phil_M0DNY> Back in the 70s I think.
[18:25] <mfa298> 11th August Flight ReFueling
[18:25] <Phil_M0DNY> Ah FRARS rally.
[18:25] <Phil_M0DNY> :)
[18:25] <mfa298> damnned RSGB site not allowing copy and paste.
[18:27] <Phil_M0DNY> mm
[18:27] <x-f> LeoBodnar, usually they ascend a bit and then burst in an hour, there have been a couple exceptions though
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[18:28] <x-f> but this is the first 100g balloon that has floated, so it's interesting
[18:28] <x-f> hi, Dan
[18:33] <Phil_M0DNY> WILLdude: Is it the Newbury Rally that you're going to tomorrow?
[18:37] <Dan-K2VOL> hi x-f
[18:41] <fsphil> ah she's still going
[18:41] <fsphil> sunrise in a few hours I think
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[18:43] <Upu> about 10pm our time ish
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[18:50] <SpeedEvil> x-f: Oooh
[18:50] <SpeedEvil> What's the altitude?
[18:51] Action: SpeedEvil hasn't been keeping up
[18:51] <x-f> 19.5 km steady
[18:51] <SpeedEvil> I don't in principle see why any balloon that has a nonelastic constraint at the end of its elastic expansion, can't float in unturbulent air.
[18:52] <Upu> Stations in Sydney have got it now so that coverage sorted
[18:53] <Laurenceb__> wonder how it survives at low float altitude
[18:53] <Laurenceb__> should be nicer atmospheric conditions
[18:54] <Upu> extremely interested to see what happens at sunrise
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[18:55] <Laurenceb__> http://upload.wikimedia.org/wikipedia/commons/c/cb/Ozone_altitude_UV_graph.svg
[18:55] <Jess--> Nice float from horus
[18:55] <Laurenceb__> hmm lots of ozone tho :/
[18:55] <Lunar_Lander> hello
[18:55] <SpeedEvil> Spray it with silione suntan.
[18:55] <Phil_M0DNY> Upu: Globaltuner is getting stronger, but nowhere near decode yet.
[18:55] <Laurenceb__> hmm
[18:56] <Laurenceb__> yeah sun cream is effective at low thickness
[18:56] <Laurenceb__> i think...
[18:56] <SpeedEvil> Most will kill the latex I guess
[18:56] <SpeedEvil> Chop up a balloon, and try some experiments
[18:56] <Laurenceb__> it might actually be feasible
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[18:57] <SpeedEvil> Gold leaf is quite thin.
[18:58] <SpeedEvil> Applying it to the inflated balloon at altitude would be an interesting engineering challenge.
[18:59] <Laurenceb__> need to find the SPF standard specs
[19:00] <Laurenceb__> and work out optical cross section/ absorption depth
[19:00] <SpeedEvil> There are of course special UV protection coatings for plastics.
[19:00] <SpeedEvil> But...
[19:00] <x-f> do it from the inside, let the gas pressure push it out through the pores in latex :)
[19:01] <SpeedEvil> I have wondered if hydrogen or methane filling will work as an 'antioxidant'
[19:01] <SpeedEvil> The hydrogen and methane will largely fill the pores of the balloon.
[19:01] <SpeedEvil> Will this mitigate attack from ozone?
[19:02] <Laurenceb__> aha
[19:02] <Laurenceb__> SMF is 2mg/cm^2
[19:02] <Laurenceb__> *SPF
[19:02] <SpeedEvil> That's quite a lot.
[19:02] <Laurenceb__> SpeedEvil: H2 seems to give longer envelope life
[19:02] <SpeedEvil> 20g/m^2
[19:02] <Laurenceb__> so i think you are correct
[19:03] <Laurenceb__> yeah but whats the best cream?
[19:03] <Laurenceb__> like spf 100 or something?
[19:03] <SpeedEvil> Or about 480g for a 100g balloon at burst
[19:03] <SpeedEvil> Ah - true
[19:03] <SpeedEvil> Applying it evenly will at least be easier
[19:03] <Laurenceb__> so you could easily reduce by an order of magnitude
[19:03] <SpeedEvil> yeah
[19:04] <SpeedEvil> I guess you need to work out if you care about UVA/B/C
[19:04] <Laurenceb__> inflate balloon, then electrostatic spray perhaps?
[19:04] <Laurenceb__> yeah
[19:05] <SpeedEvil> I was more meaning that it's pretty trivial to smear it mostly-evenly over a balloon on the ground, than at burst altitude and area.
[19:05] <Laurenceb__> yeah
[19:05] <SpeedEvil> Oh - and not 480g, 120g.
[19:05] Action: SpeedEvil got radius and diameter confused.
[19:05] Action: SpeedEvil has been moving wood today.
[19:05] <Laurenceb__> what is the horus envelope?
[19:06] <Laurenceb__> and is it H2 ?
[19:06] Action: SpeedEvil ponders.
[19:06] <SpeedEvil> I do have a UVC 36W tube
[19:06] <SpeedEvil> I could put that in an attic light, and stick some balloons next to it.
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[19:33] <fsphil> a little dip in altitude
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[19:33] <SpeedEvil> Possibly getting dark at altitude?
[19:34] <LeoBodnar> Is it hight over geoid?
[19:34] <Upu> its got about an hour and a half before sunrise
[19:34] <fsphil> it's about an hour and a bit until sunrise
[19:34] <Upu> ish
[19:34] <Upu> lol
[19:34] <Upu> snap fsphil :)
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[19:34] <ibanezmatt13> Good Evening :)
[19:35] <Upu> hi ibanezmatt13
[19:35] <Upu> right afk for a while
[19:35] <fsphil> howdy ibanezmatt13
[19:35] <ibanezmatt13> howdy
[19:35] <BenBancroft> On a NTX2, does the En pin need to be connected to a voltage of the same level as Vcc?
[19:35] <ibanezmatt13> Upu: I will purchase that connector Upu
[19:35] <ibanezmatt13> Yes
[19:35] <Upu> BenBancroft if you want it always on yes
[19:35] <ibanezmatt13> I think
[19:35] <Upu> really afk now :)
[19:36] <BenBancroft> well im doing one way serial so i guess I will do
[19:36] <ibanezmatt13> Upu: Just out of curiosity, is that £5.00 postage price accurate?
[19:37] <Upu> ibanezmatt13 just put collect in shop
[19:37] <Upu> and send another 90p to paypalsell@nevis.co.uk
[19:37] <Upu> afk !
[19:37] <ibanezmatt13> we won't be able to collect in the next few weeks though, my Dad's venturing to Russia
[19:39] <ibanezmatt13> Oh do you mean tick collect in store, make a donation and then you'll send it? Hopefully I got that right :\
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[19:42] <ibanezmatt13> will that end launch connector not put strain on the stripboard? Is that definitely the one I need?
[19:46] <ibanezmatt13> Upu: purchased
[19:49] <fsphil> you'll want some strain relief on the cable anyway
[19:50] <fsphil> I normally just put a loop of cable before it leaves the payload box
[19:50] <ibanezmatt13> ah ok, I guess it'll be fine so long as the cable isn't too tight
[19:50] <fsphil> exactly
[19:51] <ibanezmatt13> ok, by the way, I've just uploaded a pic I'd like you to look at
[19:51] <ibanezmatt13> One sec
[19:51] <ibanezmatt13> https://www.dropbox.com/s/umkk0gzvrgllady/photo%20%281%29.JPG
[19:51] <ibanezmatt13> That's the ribbon cable I have
[19:51] <ibanezmatt13> but...
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[19:52] <ibanezmatt13> How can I tell which pin is which wire on the ribbon cable?
[19:52] <fsphil> that's an odd cable
[19:52] <fsphil> use a continuity test on a multimeter
[19:52] <ibanezmatt13> ah yes
[19:53] <ibanezmatt13> I''m gonna cut the connector off at the end (not the one that goes onto Pi)
[19:53] <ibanezmatt13> Then I'll just take a little insulation off the wires I need and solder them to the stripboard
[19:53] <ibanezmatt13> That should be fine yes?
[19:55] <fsphil> should do
[19:55] <ibanezmatt13> Ok, thanks :)
[19:55] <fsphil> I'm not a fan of soldering wires to boards
[19:55] <fsphil> https://www.youtube.com/watch?v=TGgmCiJ9iEM
[19:56] <ibanezmatt13> wow, that's good
[19:57] <ibanezmatt13> what's NBTV?
[19:57] <fsphil> who knows what it'll look like at distance
[19:57] <fsphil> narrow band tv -- narrow enough to fit through an ntx2
[19:57] <fsphil> normal tv takes up a huge amount of bandwidth
[19:57] <ibanezmatt13> ah right
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[19:58] <fsphil> this is very low resolution, and no colour
[19:58] <fsphil> thought it might be fun to fly it
[19:58] <ibanezmatt13> that would be a good thing to try
[19:59] <ibanezmatt13> That's even better than what Google are doing :)
[19:59] <fsphil> nah
[19:59] <ibanezmatt13> Well, it's different at least
[19:59] <ibanezmatt13> fsphil Are you based in Ireland?
[20:00] <fsphil> N.Ireland
[20:00] <ibanezmatt13> protesting?
[20:00] <fsphil> nah, too wet
[20:00] <ibanezmatt13> :)
[20:01] <ibanezmatt13> I may be flying over to N.Ireland with a friend who's visiting his girlfriend at some point this summer
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[20:02] <fsphil> cool, which part?
[20:02] <ibanezmatt13> well, probably Belfast City airport with Flybe; not Alergrove
[20:02] <fsphil> you do realise we've had our summer last week? :)
[20:02] <ibanezmatt13> Yes I know
[20:03] <ibanezmatt13> We'd probably only be staying a day though, not allowed to stay over
[20:04] <ibanezmatt13> He said something about a place called Lisburn I think
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[20:05] <fsphil> yea know it, don't believe I've been there
[20:05] <fsphil> drove past it many times :)
[20:05] <LazyLeopard> Never stop there?
[20:05] <LazyLeopard> ;)
[20:06] <ibanezmatt13> I'm only going for the flight, no reason to be with him and his girlfriend really.
[20:06] <fsphil> yea I love flying too
[20:07] <ibanezmatt13> I'm aspiring to be an airline pilot; I already have flying lessons
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[20:14] <SP9UOB-Tom> Thanks Tomasz. Can we talk on Monday? What is your number?
[20:14] <SP9UOB-Tom> oops
[20:14] <SP9UOB-Tom> ;-)
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[20:35] <Lunar_Lander> SP9UOB-Tom, xD!
[20:37] <qyx_> O_o horus still floating?
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[20:39] <fsphil> aye
[20:40] <fsphil> sunrise should be coming up shortly
[20:40] <LeoBodnar> in 30 minutes
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[20:47] <SP9UOB-Tom> fsphil: maybe habhub/spacenear should add sunliight/eclipsed layer to spacenear map
[20:48] <fsphil> I think the mobile tracker does
[20:48] <fsphil> hmm. it's not updating position
[20:48] <fsphil> ping lz1dev
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[20:51] <fsphil> it's not far away
[20:52] <fsphil> at that altitude it should start to see it shortly
[20:52] <fsphil> I think this is the first RFM22B that survived night
[20:54] <LeoBodnar> at -20C
[20:55] <fsphil> sunrise is now according to the mobile tracker
[20:56] <fsphil> no effect yet
[20:57] <LeoBodnar> Canberra sunrise is in 12 minutes
[20:57] <Laurenceb__> mobile tracker accounts for payload altitude?
[20:57] <fsphil> nope
[20:58] <fsphil> in theory it's already in the sun
[20:58] <fsphil> maybe takes longer for it to start warming at this altitude?
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[20:58] <Laurenceb__> odd
[20:58] <fsphil> ah, rising now
[20:58] <Laurenceb__> i wonder if there are atmospheric waves
[20:58] <Laurenceb__> that counteract it slightly
[20:58] <fsphil> 0.3m/s
[20:59] <Laurenceb__> that was sudden
[20:59] <fsphil> no 0.4
[20:59] <LeoBodnar> Horizon circle is past Newcastle and sunrise there was 5 min ago.
[20:59] <fsphil> ah, 0.4 now
[20:59] <x-f> 0.5
[20:59] <fsphil> 0.5. here we go
[20:59] <fsphil> this should be really interesting
[21:00] <fsphil> please don't burst
[21:00] <LeoBodnar> please float forever! :)
[21:00] <fsphil> hah, slowing down
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[21:02] <fsphil> 0m/s
[21:02] <fsphil> what devilry is this
[21:03] <fsphil> is it possible there's so little gas in it, that heating it has no effect?
[21:03] <fsphil> or at least not enough effect
[21:03] <Laurenceb__> erm nope
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[21:03] <Laurenceb__> is it hydrogen?
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[21:03] <fsphil> don't think they've used hydrogen for horus yet
[21:03] <SP9UOB-Tom> fsphil: my RFM22b also survived night :-)
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[21:04] <SP9UOB-Tom> evening RocketBoy :-)
[21:05] <RocketBoy> yo
[21:05] <LeoBodnar> maybe it leaked a little bit of gas to become a day floater?
[21:05] <RocketBoy> crikey picohorus sill ging
[21:05] <RocketBoy> sun up though
[21:06] <LeoBodnar> Maybe the Sun is broken?
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[21:07] <fsphil> just set here
[21:07] <SP9UOB-Tom> LeoBodnar: no , the Hill is broken - near Vk5ade
[21:07] <SP9UOB-Tom> ;-)
[21:07] <x-f> temperature is rising quickly
[21:08] <LeoBodnar> It took awhile for it to stop ascending so maybe the same effect is happening at warming up?
[21:08] <fsphil> 0.6m/s
[21:09] <fsphil> each peak of the wave is slightly faster
[21:09] <SP9UOB-Tom> anyway, in my point of view HORUS is flying upside down ;-)
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[21:11] <Lunar_Lander> evening RocketBoy
[21:11] <Lunar_Lander> did I thank you for the resistor cutdown idea?
[21:11] <Lunar_Lander> it works awesome
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[21:13] <Laurenceb__> def going up now
[21:14] <fsphil> yep
[21:14] <Laurenceb__> when does the battery die?
[21:15] <fsphil> just noticed that was below 2000
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[21:15] <x-f> voltage measurement doesn't work properly
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[21:16] <fsphil> that last wave didn't reach as high a rate as the last one
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[21:17] Nick change: omd -> VK1OD
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[21:18] <LeoBodnar> What battery type and capacity do you use on Horus?
[21:18] <fsphil> 60m below it's peak altitude
[21:19] <fsphil> -'
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[21:19] Nick change: omd -> VK1OD-1
[21:19] <fsphil> probably a couple of lithiums
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[21:20] <fsphil> this would be a great moment to release a bit of gas
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[21:20] <fsphil> evening mr.daveake
[21:22] <fsphil> I imagine if this burst now, it would never be seen again
[21:24] <WILLdude> Evening peoplez
[21:24] <VK1OD-1> I am on deck and will track the drift for a while.
[21:24] <fsphil> morning VK1OD-1
[21:24] <daveake> evening Dr Phil
[21:25] <LeoBodnar> It's turning north
[21:25] <VK1OD-1> It should pass almost overhead in abt 3h (0030UTC) at cuurrent rate.
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[21:25] <fsphil> strange how sunrise changed the direction. I guess with it rising it's being pushed by different winds
[21:26] <WILLdude> Someone from the local radio club is offering to lend me a receiver when I go to the rally tomorrow.
[21:27] <WILLdude> :)
[21:27] <WILLdude> May be useful for hab tracking
[21:28] <WILLdude> Anyone seen this?
[21:28] <WILLdude> http://www.wired.com/business/2013/06/google_internet_balloons/
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[21:30] <Upu> oh Horus is gently ascending right on cue
[21:31] <Upu> not super quick though which is good
[21:31] <Upu> wow look at the temp difference
[21:31] <Lunar_Lander> hi Upu
[21:31] <VK1KW> balloon 20km south of Cowra gaining altitude 19853 signal S5 freq 434.1557MHz
[21:31] <WILLdude> hi Upu
[21:31] <Upu> hey VK1KW keep up the good work
[21:31] <mfa298> WILLdude: well done on getting a reciever to borrow. Now you just need to get an antenna you can get put up high at your house.
[21:32] <Upu> expecting it to rise and burst now
[21:32] <Upu> ah yeah there it goes climbing away
[21:33] <WILLdude> I know, I'm looking to buy a discone tomorrow.
[21:33] <Upu> discone ?
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[21:34] <daveake> It's our local radio rally tomorrow too
[21:34] <WILLdude> http://www.maplin.co.uk/scanking-discone-antenna-29609
[21:34] <mfa298> you heading to it as well daveake ?
[21:34] <WILLdude> daveake: Ah cool, what club?
[21:34] <WILLdude> Nadars? ;)
[21:34] <daveake> Newbury yes
[21:34] <mfa298> I think that's the only rally on tomorrow
[21:35] <WILLdude> Nice. Might see you there.
[21:35] <daveake> Not actually "my" club but the showground is close
[21:35] <mfa298> both Phil_M0DNY and myself are planning on heading up as well.
[21:35] <LeoBodnar> Horus speed dropped to 20
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[21:35] <WILLdude> Ah cool.
[21:36] <fsphil> passed the 20km mark
[21:36] <WILLdude> Will there be many people there?
[21:36] <mfa298> probably lots
[21:36] <daveake> A fair few yes
[21:37] <daveake> I'll be the other one without a beard
[21:37] <LazyLeopard> Heh
[21:37] <mfa298> probably one of the four without a beard (is assuming WILLdude doesn't have a beard yet)
[21:37] <WILLdude> If I see you (and recognize you)] I'll say hi.
[21:39] <WILLdude> daveake: What license do you have?
[21:40] <WILLdude> All I have atm is a rod license.
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[21:40] <daveake> M6
[21:40] <WILLdude> Ah I remember, you're m6rpi.
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[21:41] <RocketBoy> bets on burst altitude
[21:41] <RocketBoy> 25k for me
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[21:42] <WILLdude> 25.1k for me
[21:42] <SP9UOB-Tom> 24,500
[21:42] <fsphil> 23km
[21:42] <mfa298> you have to be careful who hears you say you're only an M6 when you're around the bearded lot. Luckily I think I've just about got away from the bad remarks for only being an M1.
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[21:43] <fsphil> I'd carry a little radio, and say I'm not licensed
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[21:44] <LeoBodnar> 30,000
[21:45] <daveake> It's worse. I'm an M6 who has not intention whatsoever to use my license to speak to anyone
[21:45] <daveake> I could get ejected tomorrow if I mention that
[21:45] <WILLdude> Uhuh. So you're beardless, that's how I identify you. I'm a 5ft 5 blondish kid, OK ? :)
[21:46] <WILLdude> *5ft 5 fat blondish kid
[21:46] <WILLdude> daveake: Why did you get it then?
[21:46] <daveake> Just wear a big label "I Am Will" or some combination of those words
[21:46] <daveake> Er, to get the next one :p
[21:47] <mfa298> maybe we need a set of HAB car stickers for rallies etc.
[21:47] <daveake> Txing to payloads, and APRS, eventually
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[21:47] <Laurenceb__> battery dying
[21:47] <daveake> 23.5km
[21:47] <WILLdude> APRS has no use with airborne comms, I didn't think.
[21:48] <WILLdude> *I though.
[21:48] <mfa298> WILLdude: only in the UK
[21:48] <daveake> For outside UK
[21:48] <WILLdude> Ah right. But I thought it was license free anyway.
[21:48] <mfa298> It's more that you can't use the standard APRS frequency airborne
[21:49] <mfa298> you could use APRS on the license free frequencies but there's no listeners so no point.
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[21:50] <mfa298> APRS is normally on 144.800 which requires an amateur license and can't be used airborne in the UK (but can be used airborne in other countries - with a Full license)
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[21:51] <WILLdude> How do they maintain compatibility, for example, one country's full license could be different to another's.
[21:51] <RocketBoy> is the habhub mobile tracker working - its showing HORUS back in Adelaide?
[21:51] <mfa298> there's agreements between a number of countries that allow's a full license holder to operate in that country
[21:51] <mfa298> it doesn't apply to all countries but a lot of countries
[21:52] <daveake> maybe confused over the change of date?
[21:52] <RocketBoy> don't know - was rather hoping to use it tomorrow
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[21:55] <mfa298> WILLdude: if you can get to join the local radio club and see if you can do the foundation radio cource you should find out more about the various license levels.
[21:56] <WILLdude> I found there's a course in autumn.
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[21:58] <gez_> Horus just went strange.Announced GPS started then the signal became weak and shifted in frequency.
[21:58] <LazyLeopard> WILLdude: Where, roughly, is "local"?
[21:58] <WILLdude> Newbury from Basingstoke
[21:58] <WILLdude> There is a bstoke one but it doesn't do training.
[21:59] omd (~omd@CPE-60-229-12-22.lns4.ken.bigpond.net.au) joined #highaltitude.
[21:59] <LazyLeopard> Ah. I get lost in Basingstoke.
[21:59] Nick change: omd -> VK1OD
[21:59] <gez_> Think the batteries have gone as she's gradually faded to nothing.
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[21:59] <LazyLeopard> gez_: Maybe it burst?
[21:59] <VK1OD> Lost signal.
[21:59] <Upu> no carrier ?
[22:00] <WILLdude> LazyLeopard: The roundabouts??
[22:00] <Upu> batteries probably
[22:00] <VK1OD> Last traffic: $$$$$HORUS,5130,21:53:53,-34.06792,148.77496,20560,26,11,0,963*A8C3
[22:00] <VK1OD> $$$$$HORUS,5131pStarted GPS.
[22:00] <VK1OD> @eStarL*Started G~4Started GpStarStarted !``L`ef~acV@t Pl'
[22:00] <WILLdude> Basingstoke is easy to navigate.
[22:00] <LazyLeopard> WILLdude: You guessed it. ;)
[22:00] <Babs> Good evening HAB-fans
[22:00] <gez_> This is the last I got: $$$$$HORUS,5131Started GPS
[22:00] <Upu> batteries I suspect
[22:00] <WILLdude> Evening.
[22:00] Action: Upu slaps Darkside 1.8v next time :P
[22:01] <gez_> Then this: qStar~WStarted GhStarted GpStaU|QStarted G`!JRruaS{K|u(9w5r8! M=.nFs2WA+<)TY).3`4x6etn(4
[22:01] <WILLdude> daveake: What time are you turning up there?
[22:01] <Laurenceb__> lol its looping
[22:01] <Upu> well that was a good run , thanks for tracking it
[22:01] <Upu> brown out
[22:01] <WILLdude> Evening Upu
[22:01] <Babs> Yo WILLdude - are you still planning WILLdude #1 launch?
[22:01] <Upu> Hi Will
[22:01] <daveake> Depends on when I wake up
[22:01] <WILLdude> Je ne sais pas
[22:02] <Lunar_Lander> hi daveake
[22:02] <WILLdude> When I can afford and FTDI board, I'll continue with tracker development.
[22:02] <daveake> hi LL
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[22:02] <mfa298> WILLdude: general rule of thumb for rallies, get there as early as possible
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[22:02] <Babs> daveake: - I'm not launching tomorrow, so you an have a lie in this weekend
[22:02] <gez_> No carrier here at all (VK2IO).
[22:03] <Babs> Ps have finished your book, shall I send back?
[22:03] <mfa298> I went to the newbury rally a couple of years ago around lunchtime and people were starting to packup ( and it was supposed to close around 1530)
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[22:03] <Babs> Or take it to the conf and start up a proto-HAB library?
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[22:03] <WILLdude> daveake: Do you have a big "I AM DAVE" t-shirt?
[22:03] <Upu> nps gez_ I suspect the batteries died and it started to power cycle
[22:03] <Upu> still a damn good effort
[22:03] <LazyLeopard> Yeah, anything good is likely gone by ten minutes after the rally opens...
[22:04] <Upu> I suspect that heater took the power
[22:04] <WILLdude> Looking for a discone.
[22:04] <Upu> Why Discone WILLdude ?
[22:04] <LazyLeopard> Nah. Colinear would do better
[22:04] <mfa298> newbury rally seems to be nasty this year as well, 0900 opening time :(
[22:05] <daveake> yup :(
[22:05] <LazyLeopard> Strewth. What time are dealers allowed in, then?
[22:05] <mfa298> 0800 I think
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[22:05] <Upu> Colinear will be cheaper and perform better for HAB stuff anyway
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[22:05] <WILLdude> I'm not solely interested in hab stuff.
[22:05] <Phil_M0DNY> Has horus dropped out?
[22:06] <LazyLeopard> Yep
[22:06] <Upu> batteries most likely Phil
[22:06] <mfa298> more likely to find a colinear at a radio rally as well. Fewer ham's are interested in recieve only antennas that cover stuff outside the ham bands
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[22:06] <x-f> now it can happily go around the world and we won't even know
[22:06] <Phil_M0DNY> I thought he said 40 hours on the batteries?
[22:07] <WILLdude> A discone mostly because a guy recommended it to me for listening to comms.
[22:07] <mfa298> that probably depends what comms you want to listen to.
[22:08] <Upu> discone covers a fairly wide range of frequencies
[22:08] <WILLdude> Yes if a guy told me to jump off a cliff, I'd do it.
[22:08] <mfa298> a 2/70 colinear will probably do as good a job for air/marine/pmr
[22:08] <WILLdude> :P
[22:08] <SpeedEvil> Phil_M0DNY: more loading on the batteries with lots of listeners.
[22:08] <Upu> but personally I'd go with a colinear
[22:08] <Upu> one of the 30's or 50's X-50 W-50 etc
[22:08] <Phil_M0DNY> I'll second the colinear
[22:08] <Upu> Diamond, Watson, Sharman etc
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[22:09] <fsphil> diamond and watson both work well
[22:09] <WILLdude> hmm
[22:09] <Phil_M0DNY> SpeedEvil: I'm hoping that's sarcasm
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[22:09] <WILLdude> Discones are more compact.
[22:09] <SpeedEvil> yes.
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[22:09] <Upu> but at the expense of performance
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[22:09] <fsphil> discones are ugly beasties
[22:10] <WILLdude> I'll ask him tommorow
[22:10] <mfa298> WILLdude: what "comms" are you insterested in listening to ?
[22:10] <Upu> http://www.radioworld.co.uk/catalog/w-30_watson_2m_70cm_base_station_vertical_antenna-p-1946.html?osCsid=55205d8398886bc91cc3b7450043360f
[22:10] <Phil_M0DNY> I've just acquired (for the club) a large professional icom discone, and it's not amazing tbh.
[22:10] <SpeedEvil> quite.
[22:10] <Phil_M0DNY> It's mediocre with everything.
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[22:11] <Phil_M0DNY> As opposed to being good for 2m/70cm, and ok for everything else with a colinear.
[22:11] <SpeedEvil> just because something costs 50 p and the structural elements are drinking straws...
[22:11] <VK1KW> should I go out with my binoculars and look for Horis - frosty here but clear
[22:12] <VK1KW> gri
[22:12] <fsphil> it's a small balloon, you'd be lucky to find it
[22:12] <Upu> yeah 20km up still :)
[22:12] <SpeedEvil> there are almost no stars here at 56n
[22:12] <Upu> shame it died I suspect it won't be long before it bursts
[22:12] <VK1KW> grin - yeah
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[22:14] <WILLdude> Night peeps. See you tomorrow daveake.
[22:14] <WILLdude> Hopefully.
[22:14] <vk5nex> Hello Mark RU awake??
[22:15] <VK1OD> Well, the baloon sure ain't!!!
[22:15] <fsphil> we need lighter solar panels for these things
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[22:16] <SpeedEvil> fsphil: bare would work well
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[22:16] <vk5nex> Has the signal gone off air?
[22:16] <SpeedEvil> yes
[22:16] <VK1OD> It was lost just before 2200UTC, battery voltage collapsed rapidly.
[22:17] <Upu> think he's still asleep VK1OD
[22:17] <Upu> thats normal for the Energizer lithiums
[22:17] <Upu> once they start to drop you have about 30 mins left
[22:17] <VK5ZEA_Michael> balloon gone?
[22:17] <SpeedEvil> yes
[22:17] <Upu> yep
[22:17] <Upu> batteries ran out
[22:17] <VK5ZEA_Michael> :-(
[22:18] <VK5RM> pity
[22:18] <gez_> Yes - no signal at all now.
[22:18] <fsphil> just at the most interesting time too
[22:18] <VK1OD> Was the battery scale linear? What was 100% charge?
[22:18] <Upu> they are energizer lithiums
[22:18] <Upu> they have a very steep fall off when they go flat
[22:18] <fsphil> SpeedEvil: would. I keep meaning to get a few to play with
[22:18] <VK5RM> im sure the Sydney boya wud hv had fun with it today
[22:19] <Upu> chances are it only had about another hour left in the air anyway tops
[22:19] <gez_> Yes a pity its gone.
[22:19] <fsphil> was gonna say someone might find it, but forgot how big it is there
[22:19] <VK1OD> The telemetry reports a battery value which is not self evident. Was the scale linear, and what was the value for 100% charge... no guesses, reliable info if you have it?
[22:19] <fsphil> that said, it was heading for a populated area
[22:19] <Upu> not sure VK1OD
[22:20] <Upu> it had 2 x AA lithiums in it I believe which should have been about 3.6V at full charge
[22:20] <Upu> Darkside may be able to answer questions when he wakes up
[22:20] <SpeedEvil> fsphil: pm me your address, will try to remember to stick some in post. got several hundred w of cells from a shelved project
[22:20] <VK1OD> Upu: that is not what I asked.
[22:21] <VK1KW> last speed - last position - 1 hour - maybe
[22:21] <Upu> Well I was saying it's normally in mV so I would have expected 3000 + for the majority of the flight
[22:21] <fsphil> yikes, that's a lot SpeedEvil
[22:21] <fsphil> bare cells?
[22:22] <Upu> 963 would indicated about 500mV per cell which is about right for the discharge, however Darkside will be able to give you exact details
[22:22] <SpeedEvil> yes
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[22:22] <SpeedEvil> they are quite usable in very small fragments, and quite light
[22:23] <VK1OD> Upu: I didn't write the numbers down, but I don't recall them being around 3000 during most of the flight.
[22:23] <gez_> It was around 2500 most of the time.
[22:23] <Upu> in which case it was most likely not calibrated correct, the AVR ADC is notoriously noisy so accurate figures aren't always possible
[22:24] <Upu> you could go export the telemetry and graph it
[22:24] <Upu> but I know the shape of the curve
[22:24] <Upu> flat -> cliff
[22:24] <VK1OD> There are probably three of us with dying moment telemetry, stuff that didn't checksum ok and didn't upload, but it contains some kind of startup log so it looks like it went low on volts, possibly shed load, volts rose a little and it tried to restart.
[22:24] <Upu> most likely
[22:24] <Upu> the step up could have restarted as well
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[22:25] <SpeedEvil> That's what they want you to think!
[22:25] <Upu> anyway knock yourself out : http://habitat.habhub.org/habitat/_design/ept/_list/csv/payload_telemetry/flight_payload_time?include_docs=true&startkey=[%220634b4610d4e7b72020e375c64d25a69%22,%220634b4610d4e7b72020e375c644fec54%22]&endkey=[%220634b4610d4e7b72020e375c64d25a69%22,%220634b4610d4e7b72020e375c644fec54%22,[]]&fields=_sentence,sentence_id,time,latitude,longitude,altitude,velocity
[22:25] <Upu> ,satellites,temperature_internal,battery
[22:25] <mfa298> I think Darkside did mention earlier that he wasn't sure the battery indication was working correctly
[22:25] <Upu> 2500 for most of the flight
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[22:25] <Lunar_Lander> I got a battery reading problem today
[22:26] <Lunar_Lander> I have a voltage divider and an atmega644 on the internal 2.56V analogue reference
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[22:26] <Lunar_Lander> on the first reading it gave some 600 bits, which correctly translated to some 5 V
[22:26] <vk6qi> Darkside: Lost our battery?
[22:26] <Lunar_Lander> but then the reading dropped to 390 and 360 on the next two readings
[22:27] <Lunar_Lander> that puzzled me
[22:27] <Upu> yes vk6qi battery died
[22:27] <vk6qi> I woke up just minutes late from the looks of the decode.
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[22:28] <Upu> its only just gone
[22:28] <Upu> suspect it will have burst by now as well, if not soon
[22:28] <LeoBodnar> Battery voltage was 1124 at the start of the flight
[22:28] <Upu> testing data I think Leo
[22:29] <Upu> scroll down
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[22:29] <vk6qi> Yes, the decode lines showed the battery down to less than a volt, and the GPS re-starting.
[22:30] <fsphil> still, I declare that a very successful flight
[22:30] <SpeedEvil> :)
[22:30] <SpeedEvil> vk6qi: was it one AA?
[22:30] <Upu> two
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[22:32] <vk6qi> We'll be driving up that way tomorrow morning ; I'll keep a look out for the box!
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[22:33] <SpeedEvil> Would be highly amusing if you found it. :)
[22:33] <VK1OD> vk6qi: Last known position at 20km altitude... that will be a big search area!
[22:33] <LeoBodnar> 20km and rising
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[22:34] <Darkside> welp, that was fun
[22:34] <Upu> ah morning Darkside
[22:34] <VK1OD> LeoBodnar: Yes, quite. Some seem to know that burst was imminent... but then some predicted 40h of battery life.
[22:34] <Upu> congrats
[22:34] <arko> nice work dude
[22:34] <Darkside> the batt voltage reading is unreliable
[22:34] <Darkside> seems like a bit of a short runtime though
[22:35] <Upu> heater ?
[22:35] <Darkside> oh well
[22:35] <VK1OD> Darkside: have you seen the dying traffic?
[22:35] <Darkside> maybe
[22:35] <Darkside> no
[22:35] <Upu> it was trying to start the GPS
[22:35] <VK1OD> Do you want it?
[22:35] <Darkside> sure
[22:35] <Darkside> stick it on pastebin or something
[22:35] <VK1OD> http://habitat.habhub.org/habitat/_design/ept/_list/csv/payload_telemetry/flight_payload_time?include_docs=true&startkey=[%220634b4610d4e7b72020e375c64d25a69%22,%220634b4610d4e7b72020e375c644fec54%22]&endkey=[%220634b4610d4e7b72020e375c64d25a69%22,%220634b4610d4e7b72020e375c644fec54%22,[]]&fields=_sentence,sentence_id,time,latitude,longitude,altitude,velocity
[22:35] <Lunar_Lander> hi Darkside cool flight!"
[22:36] <VK1OD> Try again:
[22:36] VK2IO (dce95a8f@gateway/web/freenode/ip. joined #highaltitude.
[22:36] <VK1OD> http://habitat.habhub.org/habitat/_design/ept/_list/csv/payload_telemetry/flight_payload_time?include_docs=true&startkey=[%220634b4610d4e7b72020e375c64d25a69%22,%220634b4610d4e7b72020e375c644fec54%22]&endk$$$$$HORUS,5128,21:53:21,-34.06764,148.77235,20543,28,11,0,1018*374C
[22:36] <VK1OD> $$$$$HORUS,5129,21:53:37,-34.06776,148.77370,20552,27,11,0,1003*DCAD
[22:36] <VK1OD> $$$$$HORUS,5130,21:53:53,-34.06792,148.77496,20560,26,11,0,963*A8C3
[22:36] <VK1OD> $$$$$HORUS,5131pStarted GPS.
[22:36] <VK1OD> @eStarL*Started G~4Started GpStarStarted !``L`ef~acV@t Pl.
[22:36] <RocketBoy> nights
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[22:36] <Upu> night Steve
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[22:37] <Darkside> ah
[22:37] <Darkside> that means it rebooted
[22:37] <Darkside> battery voltage must have fallen so low the regulator started cycling
[22:37] <Upu> TPS61200 ?
[22:37] <VK1OD> Darkside: Looks that way.
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[22:38] <Darkside> Upu: yes
[22:38] <Upu> lucky it came back at all
[22:39] <VK2IO> The RTTY tone shifted up a few hundred Hz and then faded out.
[22:39] <Darkside> ok
[22:39] <Darkside> definitely battery failure then
[22:39] <Darkside> next time i'll have the battery readout problem fixed
[22:39] <Darkside> im pretty sure a capacitor on the board failed
[22:39] <Darkside> which is why the battery voltage readout was screwed
[22:40] <VK5ZEA_Michael> apologies for the possible stupid question... has anyone flown a HA balloon with solar cells to augment power?
[22:41] <Upu> not stupid and I think SP9UOB-Tom did it ?
[22:41] <Darkside> i know james wanted to
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[22:42] <Darkside> he showed his payload to me at the conf last year
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[22:42] <Upu> https://plus.google.com/photos/118244444241111963790/albums/5809615703033948561/5809615821755992530?banner=pwa&pid=5809615821755992530&oid=118244444241111963790
[22:42] <Upu> Never launch it
[22:42] <VK5ZEA_Michael> Ahh OK...
[22:42] <arko> woah, is that solar?
[22:43] <Upu> yes arko
[22:43] <arko> nice
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[22:43] <Darkside> Upu: it died didnt it?
[22:43] <Upu> but the TPS61200 in it had issues if it losts power
[22:43] <Upu> it does't come back on
[22:43] <Upu> which is a bit of a bummer
[22:43] <Upu> so I was going to fix a circuit to stop that but never got round to it
[22:43] <Upu> http://www.linear.com/product/LTC3105
[22:44] <Upu> will fix it
[22:44] <Upu> my typing is turning to crap late here night all
[22:44] <Darkside> night
[22:45] <Darkside> im going back to sleep
[22:45] <Darkside> :P
[22:45] <arko> nn
[22:46] <vk6qi> Excellent flight. Congrats team.
[22:46] <VK2IO> Last freq I heard Horus on was 434.1555 with RTTY centre at 1530 Hz.
[22:47] <VK2IO> It has been slowly drifting up in frequency.
[22:49] <VK2IO> Well done, guys! That was a lot of fun. Not many balloons make it over this far east.
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[00:00] --- Sun Jun 16 2013