highaltitude.log.20121010

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[04:15] <asbokid> Just reading your websfite, jonsowman .. very interesting. The section on your Weather Satellite Receiver especially intrigues..
[04:16] <asbokid> I've often wondered why artificial satellites are needed at all. Surely ionospheric refractive propagation ("skywave") would be just as effective.
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[04:19] <asbokid> Here's a much-cited 1943 IRPl Radio Propagation Handbook that explains in laymans' terms enough of the Appleton-Hartree equation to establish an ionospheric refractive wireless link: http://pdfcast.org/pdf/irpl-radio-propagation-handbook
[04:19] <asbokid> Hope you might find it interesting, Jon Sowman and friends ;-)
[04:19] <asbokid> goodnite chaps!
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[05:06] <KT5TK> asbokid Thanks very much for posting the link to the propagation handbook. Impressive what was known already in the old days...
[05:07] <x-f> he's gone :|
[05:08] <x-f> good morning (or whatever time of day you have)
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[06:13] <CanadaWest> Hmm.. 231pages of layman's terms.
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[07:27] <costyn> hello
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[07:40] <Graham_G3VZV> is ready to do some tracking today:)
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[07:42] <cuddykid> still looking good for sat :)
[07:46] <gonzo__> is craag's pico still on for launch ?
[07:47] <craag> gonzo__: yes as far as i know!
[07:47] <gonzo__> Morning Phil, ta for the update.
[07:48] <gonzo__> Just about to email it to the local radio club, hopefully that will geta few more trackers up
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[07:49] <craag> Great, thanks!
[08:08] <craag> Could I get my flight doc approved? id: 66c01b6b180d294922d740f238883891
[08:09] <Darkside> Randomskk: DanielRichman ^^
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[08:24] <craag> Current predicted landing is the middle of Basingstoke :( I'm hoping that'll change.
[08:24] <fsphil> moooorning
[08:26] <LazyLeopard> Yeah... landing in the middle of town is Not Recommended(tm)... ;)
[08:27] <number10> morning
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[08:37] <craag> I might have to delay the launch until about 12:15 bst to miss Basingstoke.
[08:37] <gonzo__> as a pico, could you change the launch site to avoid the town?
[08:38] <mattbrejza> i didnt think picos were reliably predicted as they tend to flaot?
[08:39] <craag> mattbrejza: This is based on 6000-7000 burst. Very little wind so not much variation between the two.
[08:39] <craag> I'm hoping it'll burst!
[08:39] <mattbrejza> oh ok
[08:39] <LazyLeopard> Foil pico?
[08:40] <craag> Yep.
[08:41] <gonzo__> could launch that from anywhere really.
[08:43] <kokey> I discovered how rusty I am with C last night
[08:43] <fsphil> it's like a bike
[08:43] <fsphil> it'll all come back to you
[08:44] <craag> gonzo__: I could. But this site is rather nice, field on top of the highest hill, with a local ham's dx station a short walk away.
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[09:46] <eroomde> what is happening mind-de-la-hive?
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[09:58] <costyn> eroomde: craag is launching today
[09:58] <eroomde> nice
[10:00] <Darkside> we might have snow in adelaide tonight!
[10:00] <Darkside> only in the hills, on the highest peaks
[10:00] <costyn> heh
[10:00] <Darkside> still, snow!
[10:00] <eroomde> have you seen that before Darkside?
[10:00] <Darkside> nope
[10:01] <eroomde> well don;t panic
[10:01] <eroomde> the sky isn;t falling in
[10:01] <eroomde> it's actually just water, believe it or not
[10:01] <eroomde> but in the force of crystals of ice
[10:01] <eroomde> ice is water that's frozen
[10:01] <eroomde> frozen is when the temperure is below 0 degrees C
[10:01] <eroomde> below 0 degrees C is quite a complicating thing to explain to an australian
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[10:02] <russss> haha
[10:02] <eroomde> but basically you have to weat trousers and a jumper or it gets uncomfortable cold
[10:02] <eroomde> uncomfrtably cold is a sensation whereby you want to be warmer. it's sort of like the opposite of going into a shaded area to escale 40C sun
[10:02] <eroomde> but more so
[10:03] <costyn> eroomde: hehehehe
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[10:03] <fsphil> I thought it was nearly spring there Darkside?
[10:03] <Darkside> it is
[10:04] <fsphil> although we often get snow in spring now that I think about it
[10:04] <eroomde> the most australian thing you've ever said was
[10:04] <costyn> eroomde: this phase diagram of water blew my mind when I first saw it: http://en.wikipedia.org/w/index.php?title=File:Phase_diagram_of_water.svg I had no idea there were so many states
[10:04] <eroomde> not 'just play it a bloody wav file', infact
[10:04] <eroomde> but
[10:04] <eroomde> 'i've been wanting to go to maplins for 2 days now but it's been raining'
[10:04] <Dan-K2VOL> lol
[10:05] <fsphil> hah
[10:05] <costyn> haha
[10:05] <fsphil> when it rains there, it rains properly
[10:05] <fsphil> british weather doesn't like commitment
[10:06] <MrScienceMan> word
[10:06] <costyn> MrScienceMan: sup
[10:06] <MrScienceMan> nm, admiring that phase diagram
[10:07] <costyn> MrScienceMan: sorry, I should've linked to the article: http://en.wikipedia.org/wiki/Ice#Phases it has details on the 15(!) states
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[10:09] <russss> Dragon's berthing with the ISS: http://www.nasa.gov/multimedia/nasatv/index.html
[10:09] <eroomde> russss: what time bst is berthing expected?
[10:10] <Dan-K2VOL> what an exciting week
[10:10] <russss> I think it's about an hour
[10:10] <eroomde> ah ok
[10:10] <eroomde> i'll keep it on mute
[10:10] <eroomde> i'm on a date with carlos kleiber
[10:10] <eroomde> trying to relieve the annoyance of making a mistake on the pcb i sent to the fab house last night
[10:12] <SpeedEvil> can you ring them and stop the presses?
[10:12] <eroomde> 24hr service
[10:12] <eroomde> has to be in by 7am today to get it tomorrow morning by 9am
[10:12] <SpeedEvil> oooh. I thought dragon was a day yet, banks
[10:12] <SpeedEvil> thanks
[10:12] <eroomde> so too late, as i realised at about 9.30
[10:12] <SpeedEvil> workroundable?
[10:13] <eroomde> well, maybe
[10:13] <eroomde> just v large areas on copper pour on the top and bottom with no connective vias
[10:13] <eroomde> which is bad on a gps board
[10:13] <eroomde> it was late and i was being very 'flu-ey and left it all too late to concentrate and review it properly
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[10:15] <SpeedEvil> aftermarket vias?
[10:16] <eroomde> dremel perhaps
[10:16] <eroomde> but messy to just spot the solermask off
[10:16] <SpeedEvil> I guess
[10:16] <eroomde> if i get valid I & Q out, it will be ok
[10:16] <eroomde> http://www.flickr.com/photos/eroomde/8071558586/in/photostream
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[10:17] Nick change: grumbleist_ -> grumbleist
[10:17] <MrScienceMan> what gal
[10:17] <MrScienceMan> has crazy hair
[10:17] <Dan-K2VOL> Sunita Williams
[10:17] <Darkside> eroomde: why the long thin trace?
[10:18] <Darkside> going to the chip, i mean
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[10:18] <MrScienceMan> Darkside: TIL :)
[10:19] <Darkside> and yeah, via stitching is just good practice
[10:19] <Darkside> but given all the RF stuff is off to one side, you will probably be ok
[10:20] <eroomde> Darkside: from where?
[10:20] <eroomde> from the headers?
[10:20] <Darkside> no
[10:21] <Darkside> on the left, from what i presume is a cap?
[10:21] <eroomde> oh, that's the gps line
[10:21] <Darkside> shouldn't it be microstrip up to the chip?
[10:21] <eroomde> that's basically to make it more of a tuned microstrip
[10:21] <Darkside> or as close as possible
[10:21] <Darkside> ahh
[10:21] <Darkside> so you're doing magic rf stuff with it
[10:21] <eroomde> possibly, but that's only 1cm so i didn't bother
[10:21] <Darkside> mmmrgh
[10:21] <eroomde> i only made is a microstrip from the bias tee input
[10:22] <Darkside> 1/19thwavelength
[10:22] <Darkside> eeeeeeeeeeeergh
[10:22] <Darkside> thats what that is
[10:22] <Darkside> for the bias tee, the inductor shoudl be *on* the microstrip line
[10:22] <Darkside> the ublox hardware integration manual has a good guide on how to do it
[10:22] <eroomde> i probably should have read it
[10:23] <eroomde> alas, this was a v rush job
[10:23] <Darkside> at these frequencies, you're basically made a bunch of stubs
[10:23] <Darkside> which may or may not give you problems
[10:23] <Darkside> also i lol'd at I0 and I1
[10:24] <Darkside> you didn't want the header to go I1,I0,Q0,Q1?
[10:24] <eroomde> no, that's all set in firmware via spi
[10:25] <Darkside> no no no i mean how you did the trace to I1
[10:25] <eroomde> you can do sign/magnitude, unsgined binary, 2's completment binary
[10:25] <eroomde> oh, nope, wasn't bothered
[10:25] <Darkside> :P
[10:25] <eroomde> it just need to go to my signal analyser
[10:26] <Darkside> k
[10:26] <eroomde> it's operational life will be about 10 minutes if it works
[10:26] <eroomde> i'll do a 'proper' one as a 4 layer board - the chip i think is really meant to be 4 layer
[10:27] <Darkside> probably
[10:27] <eroomde> too many very mixed kinds of signals in close proximity to each other
[10:27] <Darkside> this looks like the frontend of the vaisala radisondes :-)
[10:27] <G7PMO_Kev_> Graham_G3VZV - are you here?
[10:27] <eroomde> well it might do eventually :)
[10:27] <G7PMO_Kev_> or Graham_G3VZV_ :)
[10:28] <eroomde> the 'proper' board will be the gps front end properly layed out, an inertial menasurement unit, and a cortex mx to an sd card, provded we can get the data rate sustained
[10:28] <eroomde> which is something being worked on at the mo too
[10:28] <craag> Balloon is filled, leaving for the launch site now. (I think I might have overfilled it though..)
[10:28] <eroomde> and will record inertial and gps data with a common time stamp
[10:28] <SpeedEvil> you're not trying to stream gps directly to the card?
[10:28] <G7PMO_Kev_> good luck Craag
[10:28] <eroomde> am i not?
[10:28] <eroomde> i thought i was
[10:29] <SpeedEvil> without several Meg of budget, I mean
[10:29] <eroomde> well, i was going to try and do it *with* several meg of budget
[10:29] <SpeedEvil> i:-)
[10:29] <SpeedEvil> buffer
[10:30] <SpeedEvil> I guess if you timestamp, and don't need 100% continuous data.
[10:30] <eroomde> SpeedEvil: want to see if we can sustain 12Mb/s first
[10:30] <eroomde> if we can then we should get away with it
[10:30] <eroomde> but if not, there will be a big ram buffer
[10:30] <eroomde> or fire it off over ethernet
[10:31] <SpeedEvil> SD cards typically have very nasty peak latencies
[10:31] <SpeedEvil> of the order of a second
[10:32] <eroomde> i want to see what it's like when you don't use a file system and optimise how you address it
[10:33] <eroomde> i know all too well about the wait states being hundreds of ms long, having actually encountered it on badger2, but i suspect a lot of that was the wear leveller trying to cope with us constantly hitting the file allocation table
[10:33] <eroomde> but given we have an olimex stm43f4 board here with a full sd card interface, i want to put a number on transfer rates
[10:35] <SpeedEvil> :-\
[10:35] <zyp> stm32f4 can do 48 MHz SDIO, i.e. 24 MB/s of total throughput
[10:35] <SpeedEvil> I wish SD cards were more sane.
[10:35] <SpeedEvil> broken in so many ways.
[10:36] <eroomde> zyp: yes i know that, having looked at the datasheet
[10:37] <eroomde> the question is whether or not the sd card holds up its end on the bargain
[10:38] <zyp> 12 Mb/s is just 1.5 MB/s, which is not very much for a decent SD card
[10:38] <eroomde> and if the sd card can, getting the gps data in should be not too hard i think, with dma
[10:38] <eroomde> zyp: sure on average
[10:38] <zyp> the question is rather how much you would have to buffer while waiting for the SD card to respond
[10:38] <eroomde> now you have caught up
[10:38] <zyp> :)
[10:39] <eroomde> so i've been burned by wait states before
[10:39] <eroomde> but i think it might have been the filesystem (we used one, not really necessary in hindsight) constantly hammering the same address space - the file allocation table - to keep it up to date
[10:40] <eroomde> and so the internal wear levelling was having a whoopsie
[10:40] <zyp> I wish I had performance figures to share, but I only recently started writing my own SDIO driver, so I'm not there yet :p
[10:40] <zyp> and yes, the wear levelling theory sounds reasonable
[10:41] <eroomde> indeed. but it's just speculation for me atm
[10:41] <eroomde> i'm hoping i can just treat it as a dumb address space and keep the pointer in cortex's ram
[10:41] <eroomde> we shall see
[10:42] <zyp> no reason you can't, it's just a block device
[10:45] <eroomde> indeed. will give it a go
[10:45] <eroomde> i want this board eventually be be able to be stitched into a football, which i can then kick
[10:46] <eroomde> in an enviroment with a ball tracking system like hawkeye
[10:46] <eroomde> which i can use as truth
[10:46] <eroomde> and see how well the big sensor fusion algorithm can reconstruct the path from gps and inertial sensors
[10:52] <SpeedEvil> :-)
[10:53] <eroomde> i think it would be a nice little demo
[10:53] <SpeedEvil> 'is your inertial guidance system smarter than a 5 year old'
[10:53] <eroomde> 'is my inertial guidance system good enough to get this paper accepted'
[10:53] <eroomde> but yes maybe i could expand it to a tv show after that
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[10:54] <Dan-K2VOL> here goes the Canadarm toward dragon!
[10:54] <eroomde> link me up?
[10:55] <staylo> http://www.nasa.gov/multimedia/nasatv/ustream.html
[10:55] <eroomde> ty
[10:56] <Darkside> grabby grabby
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[10:57] <russss> I still don't quite comprehend how you can grab that thing without pushing it away
[10:57] <russss> the grapple connector is pretty clever
[10:58] <eroomde> yeah
[10:59] <russss> http://upload.wikimedia.org/wikipedia/commons/8/8d/Power_Data_Grapple_Fixture_on_station.jpg
[10:59] <russss> weird looking thing
[10:59] <eroomde> it grabs onto that wee ball doesn't it
[10:59] <eroomde> in some kind of cup
[10:59] <eroomde> and it can then pull it in the last few cm via the ball
[10:59] <eroomde> as i udneratand it
[11:00] <Dan-K2VOL> actually I think it uses a triangle of wires that iris closed around the ball
[11:00] <Dan-K2VOL> closed below the ball
[11:00] <Dan-K2VOL> but I could be remembering wrong
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[11:01] <Dan-K2VOL> the next question is where is the power and where is the data, in that fixture
[11:05] <eroomde> are there any in that fixture?
[11:05] <eroomde> might they not be in the docking ring?
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[11:08] <Dan-K2VOL> heh the name of the fixture is the "Power Data Grapple Fixture
[11:09] <eroomde> i should pay more attention
[11:10] <eroomde> " In addition, they feature four rectangular-shaped electrical connectors, that either transfer power and data to Canadarm2 from the ISS, or to a grappled payload from Canadarm2."
[11:10] <russss> the canadarm2 has one of those on each end
[11:10] <Dan-K2VOL> ahh
[11:10] <russss> so it can move around
[11:10] <Dan-K2VOL> they must have retractable covers
[11:11] <navrac_work> all gone quiet from craag - and nothing on logtail
[11:11] <gonzo__> he's prob chasimg the balloon again
[11:11] <SpeedEvil> argh. missed it.
[11:12] <SpeedEvil> oh well. woo!
[11:12] <SpeedEvil> three successfull rockets (mostly) and a couple of dockings in a row leads to a lot of confidence.
[11:12] <gonzo__> not heard any news that it's launched
[11:13] <Graham_G3VZV> is back in shack now
[11:13] <gonzo__> was just taking the micky after the last one got released befopre the payload was attached
[11:13] <Dan-K2VOL> ok so this is the best soundtrack to a balloon movie EVER.
[11:13] <Dan-K2VOL> javascript:popupVideo('popUpVisionnage.php?id=1299&type=grandPublic','main')
[11:13] <Dan-K2VOL> whoops
[11:13] <Dan-K2VOL> http://videotheque.cnrs.fr/doc=1299
[11:14] <Dan-K2VOL> I feel like one of these scientists will surely jump out of the bushes with a machine gun
[11:14] <mfa298> my guess is craag will be arriving at the launch site shortly. I think it was around an hour between qth and launch site.
[11:15] <gonzo__> long way to go for a pico!
[11:15] <mattbrejza> is he driving up from soton?
[11:16] <mfa298> I think it's a case of being a known good location by being high and open.
[11:16] <mfa298> mattbrejza: I believe so.
[11:16] <gonzo__> and landing in fields I suppose too
[11:17] <mfa298> last time I think craag was on gb3et / gb3sn beforehand.
[11:17] <craag> Just arrived.
[11:17] <gonzo__> what timingf!
[11:17] <navrac_work> we were getting worried about you!
[11:18] <craag> Yeah, some non-hab issue delayed me, sorry about that.
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[11:19] <craag> Randomskk: Could I get my flight approved? :)
[11:20] <mattbrejza> hes still in lectures (apparently)
[11:21] <craag> Any issues with me launching without approval??!
[11:21] <mattbrejza> people will have to manually select the payload from testing and may not show up on spacenear
[11:22] <mattbrejza> ithink it shows up though
[11:22] <craag> It showed up last night when I tested.
[11:23] <gonzo__> power it up and try now
[11:23] <mattbrejza> not a massive disaster then
[11:24] <G7PMO_Kev_> talking with the guys last night all (valid) data currently gets passed to spacenear - dont *need* a flight doc yet
[11:25] <mattbrejza> if nothing else you can always get the gps position and enter into a gps
[11:28] <Laurenceb> navrac_work: ping
[11:28] <navrac_work> hiya
[11:29] <Laurenceb> hi, can i ask about the pll stuff
[11:29] <Laurenceb> so you got it runing with vctcxo?
[11:29] <navrac_work> fire away
[11:30] <navrac_work> yes
[11:30] <Laurenceb> nice
[11:30] <Laurenceb> i was thinking about that
[11:30] <Laurenceb> i think you can make it work well
[11:30] <Laurenceb> using clk out from the rfm22b and gps timepulse
[11:30] <Laurenceb> so overall it would look like :
[11:31] <navrac_work> thats layed out on my breadboard at the moment
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[11:31] <Laurenceb> timer 1 pwm -> filter -> vctcxo -> rfm22b
[11:31] <Laurenceb> rfm22b gpio clkout at 15mhz -> timer1 clk input
[11:31] <Laurenceb> gps timepulse at 1KHz or so -> timer1 input capture
[11:32] <Laurenceb> so you have a feedback path now
[11:32] <navrac_work> the difficulty is that with 15.6hz step at 432mhz= err 1hz step at 30mhz ish
[11:32] <Laurenceb> unfortunately its not that simple
[11:32] <gonzo__> craag, ok see it on spacenearus
[11:32] <Laurenceb> yeah exactly
[11:32] <Laurenceb> but ive solved that problem
[11:33] <Laurenceb> you can fix it using a kalman filter
[11:33] <craag> gonzo__: Thanks, just waiting on local ham to set up his receiver.
[11:33] <Laurenceb> so you treat the vctcxo response as a 2nd order polynomial
[11:34] <Laurenceb> then use a kalman filter to estimate the three coefficients
[11:34] <mattbrejza> craag: was 434.191 from an accurate rxr or the rtl dongle?
[11:34] <navrac_work> having quickly googled it - ill leave that bit to you!
[11:34] <Laurenceb> based on measurements of the gps timepulse
[11:34] <Laurenceb> it sounds more complex that it would be
[11:34] <craag> mattbrejza: ft897 from last time, will get a confirmation shortly.
[11:34] <Laurenceb> excluding the matrix libraries itd be <100 lines of code
[11:35] <Laurenceb> so basically you apply some changes in pwm voltage to the vctcxo
[11:36] <Laurenceb> and then see how they change the phase relative to the gps
[11:36] <Laurenceb> and do that at a rate of 1khz or so
[11:37] <Laurenceb> each measurement giving a little bit of info on the way the vctcxo behaviour changes
[11:38] <craag> diaL FREQ 434.192
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[11:39] <navrac_work> ive ordered a vcxo which doesnt require a pll to multiply up to 30mhz - which will save power
[11:40] <mattbrejza> does the rfm22b need a particular crystal freq?
[11:40] <Laurenceb> its supposed to be 30mhz
[11:40] <Laurenceb> i see now reason 30+-10% wont work
[11:40] <Laurenceb> but the baud rates of the internal modem will be off
[11:40] <mattbrejza> the cc1101 for eg says 26-27MHz
[11:41] <mattbrejza> and then you adjust values as neede
[11:41] <mattbrejza> d
[11:41] <craag> it's away :D
[11:42] <G7PMO_Kev_> Craag :)
[11:42] <mattbrejza> first
[11:42] <mattbrejza> g8gtz doesnt count
[11:42] <craag> no he doesn't
[11:42] <craag> astra that is impressive!
[11:43] <craag> g8gtz is at the launch site with 18 ele yagi and masthead preamp.
[11:43] <G7PMO_Kev_> craag - what balloon are you using?
[11:43] <mattbrejza> first string after release (or at least you saying release)
[11:43] <mattbrejza> 25dB snr
[11:43] <Laurenceb> ewww
[11:43] <craag> 1x 96" foil
[11:44] <Laurenceb> http://www.kickstarter.com/projects/74441894/gigastrand-operating-system
[11:44] <Laurenceb> pmsl
[11:44] <Laurenceb> bbl
[11:45] <Darkside> oh dear
[11:45] <G7PMO_Kev_> craag - cool, with a 1xAA tracker?
[11:45] <mattbrejza> why do they need 40k :/
[11:45] <craag> G7PMO_Kev_: 1x AAA, 5.5 hours life.
[11:46] <MrScienceMan> Laurenceb: what scares people off linux is the terminal
[11:46] <G7PMO_Kev_> nice
[11:47] <navrac_work> 25mhz is the closest stable vctcxo I can get - although the internal baud rates might be off it doesnt really matter to us. I havent yet tried how off frquency you can run an rfm22b - it didnt work at 20mhz tho
[11:47] <navrac_work> sorry 26mhz
[11:47] <navrac_work> 96cm?
[11:51] <Laurenceb> navrac_work: i thought there was 30.xxx mhz on RS?
[11:51] <LazyLeopard> Ugh. Lubuntu update has broken something...
[11:52] <navrac_work> turns out to be not vc - just txco - although its in the voltage controlled oscillators section
[11:53] <navrac_work> the data sheet says vc parts are available - but the rs one isnt - spent ages trying to work out why the frequency wouldnt pull
[11:56] <costyn> MrScienceMan: but the terminal is what makes it awesome
[11:56] <gonzo_mob> craag1 is goinh back home!
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[11:58] <navrac_work> actually laurenceb - i came across some 30mhz ish ones that werent very temperature stable somewhere - but your approach would overcome that thanks to the feedback
[11:59] <Laurenceb> yeah
[11:59] <navrac_work> taitien do a 30.7mhz one but its £27+VAT
[11:59] <Laurenceb> eww
[11:59] <navrac_work> so i disocunted that
[11:59] <Laurenceb> see this is where stm32 helps
[11:59] <Laurenceb> built in pll
[11:59] <Laurenceb> thats 2ma or so current draw
[12:00] <navrac_work> but i saw a fox module somewhere which was vcxo ( not tc) which would do
[12:01] <navrac_work> anyone got a good dial for craag1?
[12:02] <mattbrejza> 191.5
[12:02] <navrac_work> thanks - got it
[12:07] <navrac_work> easier to decode when its not set to 5 bit baudot
[12:08] <LazyLeopard> Yeah, definitely setting up the hard way today...
[12:08] <LazyLeopard> No flight doc, so guessing on the RTTY settings, and I had to re-build dl-fldigi before it would start.
[12:09] <Laurenceb> is it visible from the ground
[12:09] <Laurenceb> should be close now
[12:09] Nick change: LazyLeopard -> LazyL_M0LEP
[12:11] <fsphil> nice about turn
[12:12] <mattbrejza> im getting s7 on the radio, what power is the rfm22 set to?
[12:12] <mattbrejza> or is it just that close...
[12:14] <kokey> nice and warm still
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[12:30] <LazyL_M0LEP> Oops. Something happened...
[12:31] <cuddykid> looks like landing for saturday's flight is going to be in the same area as flight before - between banbury and bicester
[12:31] <LazyL_M0LEP> craag: burst?
[12:31] <craag> yep.
[12:31] <fsphil> that was quite a drop
[12:32] <fsphil> I blame Bob
[12:32] <Graham_G3VZV_> signal suddenly went very weak - suspect antnna is all wrapped up in something:)
[12:32] <fsphil> I wonder if it hit something
[12:33] <LazyL_M0LEP> balloon foil, presumably...
[12:33] <craag> It is coming down rather fast...
[12:33] <craag> packing up now!
[12:33] <fsphil> g'luck!
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[12:38] <LazyL_M0LEP> Fairly steady descent....
[12:39] <LazyL_M0LEP> Signal barely noticable on the waterfall here now.
[12:39] <G8GTZ> Heading for open land - still loud here
[12:40] <costyn> looks like a nice big field
[12:40] <G7PMO_Kev_> :)
[12:40] <G8GTZ> The land between the A30 and M3 where it is is the common ;-)
[12:41] <costyn> aargh... u-turn
[12:41] <LazyL_M0LEP> open land is good, but the low altitude air will blow it back the other way...
[12:41] <costyn> into the trees
[12:42] <G8GTZ> No trees there - that's heading back in to town...
[12:42] <costyn> going for a low-pass over the road
[12:42] <staylo> curse you light easterly
[12:42] <fsphil> in a tree?
[12:42] <G8GTZ> Time to go and ctach it Phil ;-)
[12:43] <fsphil> cleared the road
[12:43] <costyn> phew
[12:43] <fsphil> and into the other set of trees
[12:43] <G7PMO_Kev_> common land behind those houses...
[12:43] <G8GTZ> I just lost it...
[12:44] <costyn> G8GTZ: so 323M was the last string
[12:44] <G8GTZ> It's gone...
[12:45] <G8GTZ> Very strong then nothing - 19 element yagi with mast head pre-amp at 10mts, 5 miles away ;-(
[12:45] <costyn> G8GTZ: what do you think happened?
[12:46] <G7PMO_Kev_> G8GTZ - we need you tracking all our launches with hardware like that avaliable to you :)
[12:46] <G8GTZ> Didn't drift, just went dead
[12:46] <G8GTZ> Ahh that's why Phil came up here ;-)
[12:49] <staylo> really interesting how the surface winds were 180 degrees to winds aloft
[12:49] <Randomskk> eroomde: I totally said you needed more stitching last night :P
[12:51] <eroomde> did u?
[12:51] <eroomde> i blaNKED
[12:51] <G8GTZ> Just talked to Craag - he's underneath where it burst...
[12:51] <eroomde> I was v tired and snotty and wanted to go home
[12:51] <eroomde> Randomskk: but now
[12:51] <eroomde> i have a standing desk!
[12:52] <eroomde> courtesy of some boxes
[12:52] <Dan-K2VOL> haha
[12:52] <eroomde> and a bit of plywood
[12:53] <Randomskk> nice :D
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[13:00] <eroomde> Randomskk: http://i.imgur.com/q6f7y.jpg
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[13:00] <eroomde> height of things still needs tuning
[13:00] <eroomde> but ok so fR
[13:01] <eroomde> except learning this split keyboard
[13:02] <fsphil> not a fan of those mice
[13:02] <fsphil> although I understand the idea behind them
[13:03] <BrainDamage> careful for splinters
[13:03] <fsphil> swagelok?
[13:04] <fsphil> ah, regulators
[13:04] <eroomde> plumbing for rockets
[13:04] <eroomde> well, pipes, fittings, joins, all sorts
[13:04] <eroomde> they are the Farnell of the rocket world
[13:05] <eroomde> we have about 200 boxes like those
[13:05] <eroomde> more in every day
[13:05] <Randomskk> eroomde: classy :p
[13:05] <craag> I'm hearing it
[13:06] <costyn> craag: cool you're close to the last known position?
[13:07] <craag> New location on map.
[13:07] <craag> Packing up again to head over there! :D
[13:07] <costyn> craag: good luck
[13:08] <eroomde> oh sorry for interrupting OT during a chase craag
[13:08] <eroomde> forgot
[13:08] <eroomde> good luck
[13:09] <costyn> looks like quite a lot of shrubs on street view
[13:17] <G8GTZ> He might be lucky - the edge of a park and houses
[13:17] <fsphil> fairly open there
[13:18] <craag> I'm at the site, had a quick look and can't see it.
[13:18] <craag> Some very tall tress though :(
[13:18] <craag> Getting out the yagi
[13:18] <G8GTZ> still hear it?
[13:20] <craag> v loud
[13:20] <Darkside> you should be able to DF it then
[13:20] <Darkside> if you can attenuate the signal somehow
[13:21] <fsphil> it looks to be in a garden
[13:21] <gonzo__> give it a few updates and see whet it averages to
[13:21] <craag> got it :D
[13:21] <G8GTZ> excellent!
[13:21] <fsphil> nice
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[13:22] <gonzo__> if you have an fm hheld, you can use your body as a shield and FD it for max quieting in fm
[13:22] <gonzo__> good one
[13:22] <craag> No wonder it came down so fast..
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[13:23] <craag> it ripped around the stem, so just the payload and valve-tube came down!
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[13:24] <gonzo__> time to fly again?
[13:24] <craag> Not really, I've got uni work I should be doing.
[13:24] <craag> This'll be it for today, thanks for the tracking guys!
[13:24] <G8GTZ> I do like a happy ending ;-) 73
[13:26] <G7PMO_Kev> :)
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[13:33] <cuddykid> this is probably a ridiculous question.. just want to make sure.. the helium we ordered from BOC is not liquid?! It's just super compressed gas right& Only reason I asked this is the Uni is going on about supplying liquid helium :/
[13:34] <Dan-K2VOL> just compressed
[13:34] <cuddykid> good - thought so :)
[13:34] <cuddykid> thanks
[13:34] <Dan-K2VOL> np
[13:34] <cuddykid> apparently the uni are now in talks about how they're going to maintain supplies given the shortage
[13:35] <eroomde> lots of unis use liquid
[13:35] <eroomde> they need so much of it
[13:35] <eroomde> easier to keep as a cryogen
[13:36] <cuddykid> yep, going to try and get them to give me a canister of gas
[13:36] <cuddykid> apparently they use air products for their helium
[13:36] <eroomde> you'll often see big white dewars out the back of uni buildings
[13:36] <cuddykid> ah, yes!
[13:36] <cuddykid> that's what they are then
[13:36] <cuddykid> I'm around the physics/engineering area quite a bit
[13:36] <eroomde> we got all our helium for free via the uni's boc representative
[13:36] <eroomde> it's definitly worth asking
[13:37] <eroomde> our useage was lost in the noise compared to what physics use
[13:37] <eroomde> and they got nice publicity
[13:37] <cuddykid> apparently, they use BOC for everything else, but use air products for helium - got a number to call, hopefully they can sort something out
[13:37] <cuddykid> yep :)
[13:37] <kokey> need some thorium and a lot of time
[13:38] <eroomde> :)
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[13:54] <cuddykid> no one seems to be answering their phones
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[14:25] <Graham_G3VZV_> i seem to be receiving xaben but I dont see it on the tarcker page
[14:25] <Graham_G3VZV_> ah - its there now:)
[14:25] <eroomde> a hugh job for steve maybe
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[14:26] <eroomde> hush*
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[14:27] <RocketBoy> its up
[14:28] <RocketBoy> in case you didn't know
[14:28] <eroomde> we do now
[14:29] <fsphil> aah, wales
[14:29] <fsphil> typically I'm not setup, and this is closer than usual
[14:30] <eroomde> why wales?
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[14:34] <mfa298> xaben0 looks to be drifting a fair bit.
[14:35] <eroomde> in whicvh dimension
[14:35] <eroomde> freq?
[14:35] <mfa298> frequency
[14:36] <mfa298> dial is 434.076.
[14:36] <RocketBoy> .075 and .250
[14:36] <LazyLeopard> Hmmm... A day for flights without flight docs in dl-fldigi, it seems...
[14:36] <eroomde> brecons beacons sounds like a fun place to launch
[14:36] <RocketBoy> cans someone compare both
[14:37] <RocketBoy> sort of - more later
[14:37] <kokey> less fun place to land tho
[14:38] <RocketBoy> can someone asso do me a predicted landing spot given 30km burst and 4m/s descent rate
[14:38] <RocketBoy> \(no access to tracjer atm0
[14:38] <mfa298> I think I'm getting slightly better snr on xaben1
[14:38] <kokey> where did craag1 fall?
[14:39] <mfa298> LazyLeopard: I think craag is still waiting for his flight doc to be approved.
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[14:41] <mfa298> xaben1 snr 20db+, xaben0 snr 16db
[14:42] <LazyLeopard> What are the RTTY settings for them?
[14:42] <mfa298> 7n1
[14:42] <LazyLeopard> Thanks
[14:42] <mfa298> xaben0 is around 450 shift, xaben1 600 (although looked to be more like 660)
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[14:43] <LazyLeopard> XABEN1 nearer 650 shift
[14:44] <LazyLeopard> XABEN0 around 400
[14:44] <LazyLeopard> XABEN0 is slightly stronger than XABEN1 here
[14:45] <LazyLeopard> ...but also a bit more wavery
[14:45] KT5TK (~thomas@c-76-30-70-108.hsd1.tx.comcast.net) got netsplit.
[14:46] <navrac_work> didnt realise this launch was happening
[14:47] <LazyLeopard> XABEN1 is rather more steady.
[14:48] <kokey> what radios are they?
[14:49] <LazyLeopard> Mind, the narrower shift on XABEN0 may be accentuating the waveyness of the traces...
[14:50] <LazyLeopard> navrac_work: Something clogged in the flight notification and approval process, perhaps?
[14:51] <mfa298> moved my antenna out the window and now xaben0 has the better snr (30db)
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[14:52] <mfa298> I think the launch email ended up in the thread about launches on the 8th Sept.
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[14:54] <LazyLeopard> Ah well... All the more reason to make sure a new launch gets a new thread...
[14:54] <navrac_work> oh yes - i remember seeing it - i wanted to listen out for the new tx unit
[14:57] <navrac_work> did xaben1 just jump in freq by a few hundred hz - or did i lean on something and retune?
[14:58] <navrac_work> ah mouse wheel retuning error...
[15:01] <costyn> hehehe
[15:01] <costyn> PEBCAK
[15:03] <LazyLeopard> XABEN1 does seem to be getting a bit more wobbly.
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[15:08] Nick change: MrScienceMan -> RG-LZ1DEV
[15:09] <RG-LZ1DEV> good evenin'
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[15:13] <SP9UOB> hi
[15:13] <G7PMO_Kev_> hi
[15:13] <SP9UOB> someone can approve flight doc ?
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[15:24] <Randomskk> SP9UOB: yea
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[15:31] Nick change: Guest40983 -> danielsaul
[15:32] <SP9UOB> Randomskk: hi
[15:32] <Randomskk> just need the document ID
[15:33] <Randomskk> also craag, sorry, was at lectures 9-2 basically
[15:33] <Randomskk> probably best to ask for flight docs to be approved the day before if possible :P
[15:33] <griffonbot> Received email: Adam Greig "Re: [UKHAS] Launch Announcement - CUSF - Thursday 11th Oct"
[15:33] <Randomskk> for now anyway -- soon we should have the approval interface done so lots more people can approve them
[15:34] <Graham_G3VZV_> believes that PA3WEG is in range of the XABEN balloon:)
[15:34] <SP9UOB> Randomskk: flight name SP9UOB-2
[15:34] <SP9UOB> Randomskk: docid was lost :-(
[15:34] <Graham_G3VZV_> and awards Wouter the best DX prize???
[15:36] <Wouter-[pa3weg]> haha, hi graham
[15:36] <SP9UOB> Graham_G3VZV_: on 20 oct i'll launch baloon with 28 MHz RTTY tracker 1 Watt out
[15:36] <tioukcom> anyone know the current draw from a ultra lithium AAA. energizer site is useless unless you like pictures.
[15:37] <SP9UOB> Graham_G3VZV_: So should be heard across Europe
[15:37] <Randomskk> SP9UOB: approved
[15:37] <Wouter-[pa3weg]> what was the other frequency again? now on 250
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[15:37] <mfa298> 434.077
[15:37] <Graham_G3VZV_> .075
[15:37] <SP9UOB> Randomskk: thanks
[15:38] <Graham_G3VZV_> SP9UOB - sounds a nice payload - make sure it gets lots of publicity!
[15:38] <SP9UOB> Graham_G3VZV_: tests before transasiatic flight
[15:40] <SP9UOB> any listeners are welcome :-)
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[15:43] <SP9UOB> Graham_G3VZV_: here is beta version of the transmitter: http://www.youtube.com/watch?v=9V8v9jY6k0w
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[15:45] <Graham_G3VZV_> very nice:)
[15:46] <mfa298> snr looks very similar between both tx's now from here.
[15:47] <Graham_G3VZV_> lots of doppler
[15:47] <mfa298> looks like burst
[15:49] <navrac_work> xaben1 is very steady - havent had to retune at all
[15:54] <Graham_G3VZV_> very true
[15:54] <SP9UOB> Cu All
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[15:59] <navrac_work> looks like its stayed within 100hz from when i first tracked it
[15:59] <Wouter-[pa3weg]> out of range here
[15:59] <Wouter-[pa3weg]> both trackers were OK here
[16:00] <SamSilver> dave-on-hols: are you watching http://spacenear.us/tracker/
[16:00] <dave-on-hols> Er no ...
[16:00] <dave-on-hols> why wossup?
[16:00] <mfa298> xaben0 has drifted in freq a bit on the way down again. but not too much
[16:01] <dave-on-hols> I was just going to dive-bomb y'all with http://i.imgur.com/Jpoc3.jpg and http://i.imgur.com/lsT5o.jpg :p
[16:01] <RocketBoy> v bad 3g ere - could someone do a predictoion based on 51.77676,-3.10998,30908m and 4m/sec descent rate
[16:01] <RocketBoy> tracker isn't updating for me
[16:02] <SpeedEvil> wait a bit. if nobody else gets to it
[16:02] <griffonbot> @cuspaceflight: Nova 24 will be launching 9am tomorrow from Churchill College. #ukhas #cusf [http://twitter.com/cuspaceflight/status/256062228145520640]
[16:02] <RocketBoy> cheers
[16:02] Action: SpeedEvil sighs at android cup
[16:03] <SpeedEvil> argh, no c+p
[16:03] <SpeedEvil> the silly way then
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[16:04] <SpeedEvil> predicting
[16:05] <SpeedEvil> over breanarton now
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[16:07] <SpeedEvil> about 11km to the northeast
[16:07] <SpeedEvil> also.
[16:08] <SpeedEvil> the predictor is very, very retarded on the stock nexus 7 chrome.
[16:08] <RocketBoy> is that 11km to nw of my chase car/
[16:09] <RocketBoy> ?
[16:09] <RocketBoy> (cheers btw)
[16:09] <SpeedEvil> Firefox is better
[16:10] <SpeedEvil> 18km northeast of breanarton, which that position was
[16:11] <navrac_work> i made it 1km east of coldbrook
[16:11] <RocketBoy> cheers :-)
[16:12] <jonsowman> the predictor is not mobile compatible :P
[16:12] <jonsowman> (yet)
[16:12] <jonsowman> (maybe)
[16:13] <SpeedEvil> oh, silly me
[16:13] <SpeedEvil> the tracker works
[16:13] <navrac_work> lost it here - still a good signal but the local qrm is better
[16:14] <SpeedEvil> navrac_work's position looks quite plausible
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[16:17] <LazyLeopard> Still just getting XABEN1 here
[16:17] <Graham_G3VZV_> getting weak here now - quite quiet channel
[16:18] <LazyLeopard> Losing it now.
[16:18] <navrac_work> its slowing - I think its going to make it a couple of km further North to the werndu golf club
[16:19] <jonsowman> ls
[16:19] <jonsowman> oops
[16:19] <jonsowman> sorry
[16:20] <jonsowman> irssi should look for standard unix commands and ask if you're sure.
[16:21] <LazyLeopard> Faint trace here still, but not decodable any more
[16:21] <Randomskk> maybe you should write a plugin
[16:21] <Randomskk> in perl
[16:21] <jonsowman> :|
[16:21] <jonsowman> no ta
[16:21] <Graham_G3VZV_> sorry not fully decoding it now
[16:22] <Graham_G3VZV_> $$$$$XABg1,1012,16:21:40,51.81735,-2.97102.2382*721B location looks ok
[16:22] <navrac_work> last prediction put it 2 miles due east of the maindiff courst hospital
[16:22] <navrac_work> 2km sorry
[16:23] <Graham_G3VZV_> 16:20:55,51.82011,-2.96903,1850
[16:27] <Graham_G3VZV_> gone now sorry
[16:28] <navrac_work> 51.8335,-2.8752 was the predictors guess based on the last packet
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[16:42] <G7PMO_Kev_> navrac_work - I dont seem to be seeing the predictor output mapped on spacenear.us, I thought I used to see it though?
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[16:46] <futurity> Hi, Is Steve still due to launch today.
[16:49] <futurity> Hi Steve
[16:49] <futurity> Did have you already launched today>
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[17:02] <DanielRichman> craag: done
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[17:11] <The-Compiler> does Adam Greig happen to be in here as well? Can't really map the mail to an IRC nick :P
[17:12] <DanielRichman> The-Compiler: Randomskk
[17:12] <DanielRichman> [bbl]
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[17:21] <The-Compiler> Randomskk: got a minute? In your mail you said the GPS didn't get a lock because of the GoPro cameras, kinda got my attention.. care to explain?
[17:22] <RocketBoy_S2> yo - got it back - cheers chaps
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[17:30] <fsphil> nice one RocketBoy_S2
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[18:15] <SpeedEvil> The-Compiler: from memory, emc issues
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[18:36] <nosebleedkt> Reached 181$ from donations !!!!!
[18:38] <nosebleedkt> .
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[18:39] <nosebleedkt> .
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[18:42] <nosebleedkt> .
[18:42] <nosebleedkt> hi everybody!!!
[18:42] <nosebleedkt> it seems i have to talk very often so the IRC servers won't kick me out !
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[18:54] <RG-LZ1DEV> nosebleedkt: perhaps something is blocking the ping/pong
[18:55] <nosebleedkt> .
[18:55] Nick change: RG-LZ1DEV -> RG-lz1dev
[18:55] <RG-lz1dev> im mrscienceman btw
[18:55] <fsphil> or your isp has strict limits on connection times?
[18:55] <RG-lz1dev> finally got my callsign
[18:55] <RG-lz1dev> :)
[18:55] <fsphil> congrats!
[18:55] <nosebleedkt> I have the same ISP as 3yrs now
[18:55] <RG-lz1dev> thx
[18:55] <nosebleedkt> welldone RG-lz1dev
[18:55] <fsphil> I keep having to change ISP as they kept getting bought by Talk Talk
[18:56] <nosebleedkt> fsphil, where r u ?
[18:56] <nosebleedkt> how r u ?
[18:56] <nosebleedkt> whats up ?
[18:56] <nosebleedkt> !
[18:56] <fsphil> all good here nosebleedkt, yourself? things calmed down with you yet?
[18:58] <RG-lz1dev> nosebleedkt: you were from greece right?
[18:58] <nosebleedkt> yeah they seem to forget me little by little and that ubercool
[18:58] <nosebleedkt> yeah!
[18:58] <nosebleedkt> fsphil, im preparing for slarosII :)
[18:58] <RG-lz1dev> hows the weather there, here in Bulgaria is freezeing
[18:58] <fsphil> revenge of slaros :)
[18:59] <nosebleedkt> hey bulgaria !
[18:59] <fsphil> what do you call freezing?
[18:59] <nosebleedkt> Got some find pictures of your territory RG-lz1dev
[18:59] <nosebleedkt> have you seen them ?
[18:59] <nosebleedkt> find/fine
[18:59] <RG-lz1dev> nope
[19:00] <nosebleedkt> RG-lz1dev, got facebook ?
[19:00] <nosebleedkt> I have Pirin Mt, Bankso, Sofia, and our borders from 38km :)
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[19:02] <nosebleedkt> RG-lz1dev, and of course my mission was entitled 'balkan space express' as we are all balkan tribes :P
[19:03] <nosebleedkt> RG-lz1dev, https://fbcdn-sphotos-g-a.akamaihd.net/hphotos-ak-prn1/150143_526039804076735_2066817955_n.jpg
[19:04] <nosebleedkt> https://fbcdn-sphotos-c-a.akamaihd.net/hphotos-ak-ash4/399403_501253943221988_749131209_n.jpg
[19:04] <nosebleedkt> sofia, bankso, velinigrad
[19:04] <RG-lz1dev> fsphil: about 10C
[19:04] <RG-lz1dev> its was 30C two days ago
[19:04] <nosebleedkt> RG-lz1dev, if you got fb join https://www.facebook.com/slaros.project
[19:04] <RG-lz1dev> im not a fan of facebook :)
[19:04] <RG-lz1dev> sorry
[19:05] <RG-lz1dev> excellent pics
[19:05] <RG-lz1dev> my payload got similiar
[19:05] <RG-lz1dev> should've pointed the camera a bit down
[19:05] <RG-lz1dev> or used gopro
[19:05] <RG-lz1dev> :)
[19:05] <nosebleedkt> where r your pics?
[19:05] <fsphil> 10c is fairly nippy
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[19:05] <nosebleedkt> would be nice to see them
[19:06] <nosebleedkt> where r u located in BG ?
[19:06] <RG-lz1dev> Sofia
[19:06] <nosebleedkt> lol
[19:06] <nosebleedkt> Did you got anything from greece?
[19:06] <nosebleedkt> send me some link
[19:06] <RG-lz1dev> we didnt launch near sofia
[19:06] <RG-lz1dev> http://www.youtube.com/watch?v=vT_FZrswoys
[19:07] <RG-lz1dev> here is the video
[19:07] <RG-lz1dev> fsphil: well, the weather here is much harsher than UK
[19:08] <nosebleedkt> metra !
[19:08] <RG-lz1dev> we had really strong winds
[19:08] <fsphil> we haven't had a frost just yet, but it's not far away
[19:08] <RG-lz1dev> im waiting for the snow really ;)
[19:09] <fsphil> same here
[19:09] <fsphil> we got none last year
[19:09] <fsphil> well a bit of sleet
[19:09] <RG-lz1dev> where were you from fsphil
[19:10] <RG-lz1dev> romania?
[19:10] <fsphil> nah, uk
[19:11] <RG-lz1dev> ahh, wierd that you are connected through the romanian freenode server
[19:11] <RG-lz1dev> :)
[19:11] <fsphil> it's pretty much random :)
[19:11] <RG-lz1dev> there was a 1 week of snow
[19:11] <RG-lz1dev> but it wasnt last year, but the year before that
[19:11] <RG-lz1dev> i think
[19:12] <RG-lz1dev> remember having quite a few snow ball battles
[19:12] <nosebleedkt> RG-lz1dev, got any still pictures?
[19:12] <RG-lz1dev> http://www2.cs.man.ac.uk/~popovr8/tiny/img/content/tiny-pano.jpg
[19:13] <RG-lz1dev> its all footage nosebleedkt, no actual pictures
[19:13] <nosebleedkt> ah ok
[19:13] <RG-lz1dev> it was a bit disapointing as I have interest in photography
[19:14] <RG-lz1dev> im considering a night flight
[19:14] <RG-lz1dev> over Sofia, to take a picture of the lights
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[19:14] <nosebleedkt> RG-lz1dev, I think you dont need fb account to watch this: https://www.facebook.com/media/set/?set=a.493992450614804.128626.259791880701530&type=3
[19:15] <RG-lz1dev> fsphil: i remember, having a day of sun,rain and snow
[19:15] <RG-lz1dev> think its was 2008
[19:15] <fsphil> hah, nice
[19:15] <x-f> i guess it's always like that - those who get snow, doesn't want it, and vice versa
[19:15] <RG-lz1dev> you dont really want snow in a city
[19:16] <RG-lz1dev> slows everything right down
[19:16] <RG-lz1dev> but on a mountain, OH BOY
[19:16] <x-f> we had half a meter of snow two years ago, it was.. deep :/
[19:16] <jcoxon> evening all
[19:16] <nosebleedkt> yo jcoxon
[19:16] <nosebleedkt> :)
[19:16] <jcoxon> KT5TK, ping
[19:16] <RG-lz1dev> x-f: thats nothing
[19:16] <RG-lz1dev> :)
[19:17] <fsphil> hiya jcoxon
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[19:17] <x-f> RG-lz1dev, it was quite something!
[19:18] <fsphil> we're quite near the atlantic here so we don't tend to get deep snow
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[19:31] <jcoxon> fsphil, back on the case
[19:31] <fsphil> how far is it now?
[19:32] <fsphil> I think you'd just got it sending sstv last time
[19:32] <jcoxon> yeah i'm just installing python
[19:32] <jcoxon> so that all my old scripts work
[19:32] <jcoxon> i've also been tuning it a bit
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[19:33] <fsphil> I found the sstv stuff very difficult to tune right
[19:35] <jcoxon> that part is perhaps just an experiment
[19:38] <fsphil> I don't think anyone has flown sstv/ssb since your last one
[19:41] <RG-lz1dev> has anyone tried to make a live stream?
[19:41] <fsphil> there's been a few people in the US who did live tv, and I know Darkside and crew are planning on the same
[19:43] <RG-lz1dev> what are they using, DVB-S ?
[19:43] <fsphil> i think it's just analogue PAL
[19:45] <RG-lz1dev> PAL is used in Europe
[19:45] <RG-lz1dev> right?
[19:45] <RG-lz1dev> NTSC was the US one i think
[19:45] <fsphil> most of the world iirc, except north america
[19:45] <fsphil> well it used to be, a lot of places are DVB only now
[19:46] <RG-lz1dev> yeh
[19:46] <fsphil> the last analogue services in the UK stop transmitting at the end of this month
[19:48] <RG-lz1dev> yeah, UK switched to digital
[19:48] <jcoxon> RG-lz1dev, where you based?
[19:49] <RG-lz1dev> im mrscienceman
[19:49] <RG-lz1dev> :)
[19:49] <jcoxon> oh
[19:49] <jcoxon> :-)
[19:49] <jcoxon> hey
[19:49] <RG-lz1dev> studied in the UK for 7 years
[19:49] <RG-lz1dev> will be back soon to continue
[19:52] <jcoxon> cool
[19:53] <RG-lz1dev> 6* :)
[19:54] <RG-lz1dev> anyway got my callsign today
[19:54] <RG-lz1dev> and im pretty happy
[19:54] <fsphil> been on the air yet?
[19:54] <RG-lz1dev> not yet
[19:54] <RG-lz1dev> just listening on the local repeater
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[19:57] <jcoxon> hmm need more space
[19:57] Action: jcoxon goes on a uninstallation spree
[19:57] Action: RG-lz1dev was uninstalled successfully.
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[20:23] <kokey> hmmm, does anyone do RTTY with the RF22 library?
[20:26] <jcoxon_> its certainly done
[20:26] <jcoxon_> i use the RFM22 library
[20:26] <jcoxon_> which i've stripped down a bit
[20:27] <kokey> hmmm, I might switch back to using RFM22
[20:28] <kokey> RF22 was good for testing my wiring
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[20:38] <kokey> yay
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[20:40] <Lunar_Lander> hello
[20:40] <kokey> seems like I tested it well with the RF22 lib
[20:40] <kokey> applied the jcoxon_ RFM22 lib and it worked first time
[20:42] <jcoxon_> :-)
[20:42] <Lunar_Lander> hi jcoxon_
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[20:54] <jcoxon_> hi Lunar_Lander
[20:54] <jcoxon_> ping craag
[20:55] <Lunar_Lander> jcoxon_, thanks to PulseAudio I can connect my radio to ubuntu now
[20:56] <jcoxon_> excellent
[20:56] <RG-lz1dev> \o/
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[21:28] <CanadaWest> Congrats to Phil Crump today.
[21:28] <CanadaWest> For his successful CRAAG1 launch.
[21:28] <Lunar_Lander> can someone test if Wikipedia is slow at your places too?
[21:29] <CanadaWest> Umm.. in Canada, screaming fast on my 50Mbps connection
[21:29] <jcoxon_> CanadaWest, getting a nice set of data for pico launches
[21:29] <Randomskk> The-Compiler: last time I launched wombat
[21:29] <Randomskk> it was in a box with a gopro below, above and to two sides
[21:29] <Randomskk> and didn't get gps lock
[21:30] <Randomskk> I blame the gopros as it gets gps lock in the middle of my roomfine and stuff
[21:30] <Randomskk> so launching it w/o this time
[21:30] <CanadaWest> jcoxon_: His descr said he wanted to go to 10kms... he went to 30?
[21:30] <jcoxon_> CanadaWest, no it was a mini launch
[21:30] <jcoxon_> went to 5km
[21:31] <The-Compiler> Randomskk: okay.. sounds odd
[21:31] <Randomskk> so instead wombat has this amazing case
[21:31] <Randomskk> https://www.dropbox.com/s/wxu1jl6hd94h8vj/2012-10-10%2016.57.48.jpg
[21:31] <Randomskk> https://www.dropbox.com/s/p7fu9erfxfvtelg/2012-10-10%2019.18.01.jpg
[21:31] <Randomskk> it's just some foam
[21:31] <Randomskk> duct taped around it
[21:31] <Randomskk> =D
[21:32] <RG-lz1dev> slick
[21:32] <RG-lz1dev> :)
[21:32] <jcoxon_> Randomskk, anything special on tomorrows flight
[21:32] <jcoxon_> ?
[21:32] <RG-lz1dev> nice bike, where's the tire?
[21:33] <CanadaWest> jcoxon_: Then I'm misreading the tracker data. thought so.
[21:33] <jcoxon_> you seeing XABEN?
[21:33] <jcoxon_> that went to 32km
[21:34] <griffonbot> Received email: James Bromley "[UKHAS] Newbie questions..."
[21:34] <Randomskk> jcoxon_: not really
[21:34] <griffonbot> Received email: Brian Hougesen "[UKHAS] Ballon Jump Live"
[21:34] <Randomskk> wombat and joey as standard
[21:34] <Randomskk> mostly it's because we needed to get this launch done asap
[21:34] <Randomskk> exciting things maybe to come soon
[21:34] <jcoxon_> :-)
[21:34] <jcoxon_> new term
[21:34] <Randomskk> indeed
[21:35] <jcoxon_> so has DanielRichman and co joined cusf?
[21:35] <Randomskk> quite a few ideas kicking around
[21:35] <Randomskk> he has signed up as interested
[21:35] <Randomskk> the first meeting for new members is tomorrow actually
[21:35] <Randomskk> my task tonight is to make the presentation for that
[21:35] <DanielRichman> read: yes (pending acceptance by Randomskk)
[21:35] <Randomskk> then wake up at 0530 to get to the launch site at 0630
[21:35] <jcoxon_> DanielRichman, was about to say!
[21:35] <Randomskk> I don't think your acceptance is exactly in doubt :P
[21:35] <Lunar_Lander> I can't find the E-Mail by James Bromley on the mailing list
[21:35] <jcoxon_> its as if they've bee planning this all along
[21:35] <CanadaWest> I was looking at the wrong stuff. Not XABEN.
[21:36] <Randomskk> Lunar_Lander: it just posted. might take a sec.
[21:36] <Lunar_Lander> ah
[21:36] <Randomskk> but yea we have some fun sounding ideas kicking around
[21:36] <Randomskk> was having dinner with iain and dan tonight
[21:36] <Randomskk> to chat through things
[21:36] <Randomskk> cusf will be around for a little while yet
[21:37] <Randomskk> we spent £17k last academic year, it turns out
[21:37] <jcoxon_> :-)
[21:37] <jcoxon_> wow
[21:37] <Randomskk> but still turned a profit ;)
[21:37] <Randomskk> (I am treasurer so should know these things, but just compiled the full end of year accounts a day or two ago)
[21:39] <Randomskk> DanielRichman: are you able to come to the meeting tomorrow? can't remember
[21:39] <Randomskk> formal at like 19.20 right?
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[21:43] <DanielRichman> Randomskk: yeah I can make it. meeting starts 6pm, right?
[21:43] <Lunar_Lander> hi RocketBoy_S2
[21:43] <Lunar_Lander> Randomskk, still doesn't show
[21:44] <Randomskk> DanielRichman: that's right. cool.
[21:44] <DanielRichman> I will apply a bike to the problem
[21:44] <Randomskk> man, that is proactive
[21:44] <DanielRichman> provided I don't get lost it should be possible
[21:44] <Randomskk> I only just got a bike a week ago
[21:44] <Randomskk> like four years into a degree
[21:44] <Randomskk> and still haven't ridden it except home from where I got it
[21:45] <DanielRichman> locking up is sometimes a pain
[21:45] <Randomskk> CUED has _loads_ of places to lock up
[21:45] <Randomskk> shouldn't be an issue
[21:45] <DanielRichman> perfect
[21:45] <DanielRichman> CMS is good, middle of town is fine, new museums site is really bad
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[21:45] <jonsowman> CUED will be otherwise empty at that time
[21:46] <Randomskk> yea new museums is terrible
[21:46] <Randomskk> what do you go there for?
[21:46] <DanielRichman> all my lectures ever (except for a couple)
[21:46] <Randomskk> huh
[21:46] <DanielRichman> where ever = first year
[21:46] <Randomskk> I see
[21:46] <Lunar_Lander> I got a question
[21:46] <Randomskk> I thought they were CMS for some reason
[21:46] <Randomskk> Lunar_Lander: weird, I don't see it either. it'l appear eventually.
[21:46] <jcoxon_> Lunar_Lander, don't ask to ask - just ask!
[21:46] <Lunar_Lander> a friend asked me "you know balloons and GPS, I'd need a GPS that is accurate to 1 m, what can you recommend?"
[21:46] <Lunar_Lander> and I decided to ask here
[21:46] <DanielRichman> IDK why not, but nope. Unless of course I've been going to geography lectures without noticing...
[21:46] <Lunar_Lander> :)
[21:47] <Randomskk> this is my fav HAB case https://www.dropbox.com/s/p7fu9erfxfvtelg/2012-10-10%2019.18.01.jpg
[21:47] <Randomskk> we bought a label printer
[21:47] <Randomskk> and stickers
[21:47] <Randomskk> =D
[21:47] <jonsowman> everything is labelled
[21:47] <Randomskk> including chairs
[21:47] <Randomskk> people
[21:47] <jonsowman> inc furniture
[21:47] <jonsowman> and Ed
[21:47] <Randomskk> "mysterious electronics"
[21:47] <Randomskk> "secret launch codes"
[21:47] <Lunar_Lander> xD
[21:48] <jonsowman> "key hook"
[21:48] <jcoxon_> Lunar_Lander, GPS modules will struggle to get 1m accuracy
[21:48] <SpeedEvil> needs more pink
[21:48] <Randomskk> that's true
[21:48] <Randomskk> oh well
[21:48] <jcoxon_> but the best you can do is go with say a ublox
[21:49] <Lunar_Lander> yeah
[21:49] <Lunar_Lander> I told him how I got about 5 m accuracy
[21:50] <Randomskk> but it'l be like 3m maybe. you have to start doing very clever tricks to get 1m
[21:50] <Lunar_Lander> but he wants to make a model airplane autopilot using raspberry and GPS
[21:50] <Randomskk> don't need 1m accuracy
[21:50] <Lunar_Lander> yea
[21:50] <Randomskk> also check out all the many existing ones like ardupilot and things
[21:50] <Lunar_Lander> yes
[21:52] <W0OTM> iHAB-8 is set for Sunday - http://www.ihabproject.com/iHAB-8/
[21:54] <jcoxon_> W0OTM, the 20m beacon what is it txing?
[21:55] <W0OTM> W0OTM iHAB-8 Iowa High Altitude Balloon Project
[21:55] <W0OTM> CW
[21:57] <jcoxon_> oh cool
[21:57] <RG-lz1dev> http://fiber.google.com
[21:57] <RG-lz1dev> lol
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[22:00] <Lunar_Lander> internet fails today
[22:00] <Lunar_Lander> wikipedia was slow earlier
[22:00] <Lunar_Lander> farnell is down
[22:01] <Lunar_Lander> farnell back up
[22:03] <fsphil> normal for farnell
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[22:04] <W0OTM> jcoxon_: I am SUPER excited about these micro xmtr. We are going to offer them in kit form. 40M, 20M, 15M, and 10M
[22:04] <jcoxon_> nice!
[22:04] <W0OTM> run off a 9V battery, and all fit in a altoids tin
[22:04] <W0OTM> 1-2watts
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[22:04] <W0OTM> perfect for HAB
[22:05] <jcoxon_> wow
[22:05] <SpeedEvil> 9v sucks at that power
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[22:10] <Randomskk> oh god, what.
[22:10] <Randomskk> PageRank is so called because it's a ranking algorithm developed by Page
[22:10] <Randomskk> nothing to do with pages.
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[22:10] <W0OTM> SpeedEvil: what do you mean?
[22:10] <fsphil> I don't rank that highly
[22:11] <W0OTM> SpeedEvil: puts out 1-2 watts for 6+ hours on a 9V battery
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[22:18] <SpeedEvil> oh, never mind. I was meaning a pp3
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[23:38] <DrLuke> University is amazing, so far I've drank more beer than water the past days
[23:39] <DrLuke> aka why am I sober
[23:40] <Lunar_Lander> XD
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[23:52] <DrLuke> so apparently the german FAA is a restaurant: http://i50.tinypic.com/5nul2q.png
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[00:00] --- Thu Oct 11 2012