highaltitude.log.20110407

[00:00] <fsphil> serial begin
[00:01] <NigeyS> yeah, in the test script i only need the nss.begin
[00:01] <NigeyS> i think
[00:01] <NigeyS> either way the t68 has been altered to use nss* instead of serial*
[00:02] <fsphil> neat that that worsk
[00:02] <fsphil> works*
[00:02] <fsphil> I needs some sleeps. g'night all!
[00:02] <NigeyS> yeah im chuffed
[00:03] <NigeyS> nn phil, tnx again for the help, wouldnt have worrked at all without your patients :)
[00:04] <NigeyS> hey Zuph didn't see you creep in :P
[00:05] <Zuph> hey NigeyS, how are you this evening?
[00:05] <NigeyS> im very well, except my cable modem has gone down again so on that horrid 3g dongle until i kick their ass tomorrow morning!
[00:05] <NigeyS> u?
[00:05] <Zuph> 20 degrees and sunny today, Dan and I have the garage door open, and are enjoying the fresh air and HABing :-p
[00:05] <NigeyS> woohoo was warm here today to, 18degrees!
[00:06] <Zuph> Damn cable modem. Locally, the cable company is the only non-shitty internet service.
[00:06] <NigeyS> their normally pretty good in this area, but they did some "upgrades" and its not been right since
[00:08] <Zuph> bah
[00:08] <NigeyS> and this 3g dongle .. the speeds are laughable
[00:13] <NigeyS> bed time! nn all
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[01:28] <griffonbot> @CollegeARC: http://bit.ly/fuoOw0 hey #hamradio ops near #roc #ny come to Imagine #RIT to see K2GXT #hamr club #arhab launch! [http://twitter.com/CollegeARC/status/55804006290825217]
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[01:52] <griffonbot> @LVL1WhiteStar: Unfortunately the attendance of most of the payload construction team has become very low. Don't core team can get any less sleep. #arhab [http://twitter.com/LVL1WhiteStar/status/55810232596701184]
[01:53] <natrium__> :S
[01:57] <Zuph> Sleep is for the weak
[01:58] <Zuph> Also I am weak
[01:59] <stilldavid> holy hashtags batman
[02:01] <natrium__> <stilldavid> #holy #hashtags #batman
[02:01] <natrium__> FTFY
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[04:35] <Dan-K2VOL> test
[04:50] <stilldavid> it's working
[05:18] <Dan-K2VOL> good good
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[05:51] <Darkside> woot
[05:51] <Darkside> my funcube dongle arrived
[06:11] <natrium__> Darkside: when did you order it?
[06:15] Nick change: natrium__ -> natrium42
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[06:36] <griffonbot> @LVL1WhiteStar: Still a chance to make it across the ocean for the rest of the month. #arhab [http://twitter.com/LVL1WhiteStar/status/55881638630014976]
[06:37] <Darkside> natrium42: the last sale
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[06:59] <natrium42> ah
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[07:09] <Darkside> fsphil: ping
[07:17] <jonsowman> morning all
[07:17] <SamSilver> hi there
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[07:31] <Upu> amorning
[07:33] <natrium42> hi Upu
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[07:41] <fsphil> pong Darkside
[07:41] <fsphil> (ish -- may be a bit laggy)
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[07:52] <Darkside> fsphil: have you played with your funcube dongle yet?
[07:56] <fsphil> yea, been scanning about with it and using it with my payload
[07:56] <Darkside> ok
[07:56] <Darkside> what software are yuo using?
[07:56] <fsphil> for the payload, fldigi directly -- but for everything else I've been using spectravu to do the demodulation
[07:56] <fsphil> via wine
[07:56] <Darkside> ooh ok
[07:57] <Darkside> didnt realise that'd work
[07:57] <Darkside> are you seeing images?
[07:57] <Darkside> as in, signals either side of the centre?
[07:57] <fsphil> yea -- they seem to be worse on 70cm
[07:57] <Darkside> hmm ok
[07:58] <Darkside> also not 100% sure about the relationship betwee the frequenc setting and what you see in spectravue
[07:58] <Darkside> is the centre of the screen what you set? it doesn't seem to be
[07:58] <fsphil> the tuned frequency should be at the centre
[07:58] <Darkside> hmm ok
[07:58] <Darkside> will need to do som etesting with a dig gen
[07:58] <Darkside> sig gen*
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[08:00] <fsphil> it seems like it would benefit from a good preamp
[08:01] <Darkside> hrmmmmm not so sure
[08:01] <Darkside> its prone to overloading
[08:01] <Darkside> i had troubles with pagers with mine
[08:01] <fsphil> I've seen that mentioned on the list a few times
[08:01] <Darkside> yep
[08:02] <Darkside> its a problem, but where we're going to be using them it shouldn't matter so much
[08:02] <fsphil> a band pass filter too maybe
[08:02] <Darkside> yep
[08:02] <Darkside> im thinking of putting a band pass filter on mine for ballooning
[08:02] <fsphil> I'd looked at some off-the-shelf 70cm filters but they're stupid moneys
[08:02] <Darkside> look at some of hte minicircuits ones
[08:03] <Darkside> theres probably a reseller
[08:03] <fsphil> will do
[08:03] <Darkside> what about a coaxial filter?
[08:04] <Darkside> i need to do some research on this, heh
[08:04] <Darkside> anyway, almost at my stop (on the bus), back later
[08:05] <fsphil> same here (research, not the bus)
[08:06] <earthshine> morning
[08:07] <fsphil> morning earthshine!
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[08:16] <NigelMoby> Morning
[08:16] <fsphil> so soon!
[08:17] <jonsowman> morning NigelMoby
[08:17] <NigelMoby> Lol hey Phil, Jon
[08:20] <NigelMoby> Looks like another lovely warm sunny day in sheepie land.
[08:20] <jonsowman> yep, lovely day here too
[08:20] <jonsowman> weather for the dawn launch isn't looking great though :\
[08:22] <NigelMoby> Oh dear, what's the forecast?
[08:23] <jonsowman> http://habhub.org/predict/#!/uuid=8d02b0c1058140e1b9e168dedef4237bc9b550f4
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[08:29] <NigelMoby> Hmm Android not liking the predictor
[08:29] <jonsowman> oh yes it won't work well on mobile platforms at the moment... that's on the todo list
[08:30] <jonsowman> amongst many other things
[08:30] <NigelMoby> Hehe big list eh
[08:31] <jonsowman> yeah
[08:31] <NigelMoby> Had success with the t68 BTW
[08:31] <jonsowman> oh good :)
[08:31] <NigelMoby> Tnx to Phil
[08:31] <jgrahamc> Given the state of the wind it looks like Sunday morning is OK for GAGA-1 launch.
[08:32] <jgrahamc> Although there might be some light rain
[08:32] <NigelMoby> Oo rain .. yuck
[08:33] <jgrahamc> Depends who you believe in terms of weather forecast
[08:34] <NigelMoby> Yup, I tend to get more accurate forecasts from the BBC lately.
[08:34] <jgrahamc> So, they are the ones predicting light rain.
[08:35] <NigelMoby> Typical :/
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[08:41] <eroomde> one can launch with light rain
[08:41] <eroomde> if you don't mind the payload getting a bit wet
[08:44] <jgrahamc> I have no problem with a bit of light rain, although would be a pity if the camera lens got cover in rain drops.
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[09:23] <fsphil> woo, 869mhz radio module on it's way
[09:23] <fsphil> 450mw :)
[09:24] <NigelMoby> Yey radio modules have arrived
[09:24] <fsphil> lol
[09:24] <NigelMoby> Haha u win on mw :(
[09:25] <NigelMoby> This rflink is teeeeeny
[09:25] <fsphil> more power but only 10% duty -- and limited receivers
[09:26] <fsphil> this the little AM transmitter?
[09:26] <NigelMoby> Yups
[09:27] <NigelMoby> Plenty to drive me insane today, Ntx2 is here also and we know what fun they can be.
[09:29] <fsphil> you can transmit sound with the ntx2 -- must try that some ay
[09:29] <fsphil> *day
[09:29] <NigelMoby> That'll be fun
[09:30] <fsphil> wire two together, make a really simple repeater :)
[09:30] <NigelMoby> Morning lunar
[09:31] <NigelMoby> Hm that's an idea, I quite like what they did on Ihab 3 with the repeater stuff
[09:32] <fsphil> yea .. and the horus repeater too
[09:33] <fsphil> fair enough only 10mw, it'll need a big antenna on the ground
[09:33] <fsphil> but I bet a lot of people would try using it
[09:33] <NigelMoby> Huge, wanna lend my washing line? Lol
[09:35] <fsphil> might be something you could launch -- a track from south wales towards the east coast would keep it near a huge amount of people
[09:37] <NigelMoby> Hmmm good idea, bit beyond my tech know how though :/
[09:38] <fsphil> a simple repeater would just be an nrx2 wired into an ntx2
[09:38] <fsphil> two antennas
[09:39] <NigelMoby> Ohhh
[09:39] <fsphil> different frequencies .. receive on 434.650, transmit on 434.075
[09:39] <NigelMoby> That'd work
[09:39] <fsphil> wouldn't have to do the parrot-type repeater that ihab and horus did
[09:40] <fsphil> possible legal grey area though -- amateurs using non-amateur equipment
[09:40] <NigelMoby> Ah
[09:41] <fsphil> though I suppose it doesn't matter, the modules are licensed for any use
[09:41] <NigelMoby> Yup, Hm, its an idea for ATS-2
[09:41] <jgrahamc> I'd say that if you are staying within the specified use, power and duty cycle then there should be no issue.
[09:42] <fsphil> indeedy
[09:42] <NigelMoby> Agreed Jon.
[09:42] <NigelMoby> Hm I was thinking...
[09:42] <NigelMoby> My washing line ... lol bare with me on this..
[09:43] <fsphil> haha
[09:43] <NigelMoby> It's 10m wide
[09:43] <NigelMoby> Horizontal
[09:44] <jgrahamc> So you can have some HF fun with that
[09:44] <NigelMoby> Wonder if by running a cable along it can I turn it into something useful
[09:44] <NigelMoby> Spot on john, that's my thinking
[09:46] <jgrahamc> Too short for a G5RV, but you could run a centre fed dipole
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[09:47] <NigelMoby> Silly phone
[09:48] <fsphil> the metal poles might affect the antenna -- but you could put something non-metal in the tops to raise it up away from them
[09:49] <NigelMoby> Ah forgot about that
[09:49] <jgrahamc> NigelMoby: how do you get a private communication here?
[09:50] <NigelMoby> Type /msg user msg
[09:50] <jgrahamc> Ah, thanks
[09:50] <NigelMoby> Np
[09:54] <NigelMoby> Right have to do some housework bbs.
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[09:56] <jgrahamc> Current landing prediction for GAGA-1 puts it landing conveniently near a layby on the A10:http://habhub.org/predict/#!/uuid=35a4d7a0369fe7529fac5f98909e4c21fcc237fc
[10:04] <russss> apparently Arch Reactor (the St Louis hackerspace) is going to get one of those Interorbital Tubesats launched
[10:07] <Laurenceb_> nice
[10:09] Action: SpeedEvil ponders a tubesat tubesat.
[10:09] <SpeedEvil> For people interested in 20g sats.
[10:15] <Laurenceb_> heh
[10:15] <Laurenceb_> bah my mouser shipment has vanished
[10:16] <Laurenceb_> its down as delivered and signed for... which would be nice but i wasnt even around at the time it was supposedly signed for
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[10:16] <mattltm-alt> Hi all :)
[10:17] <jonsowman> morning mattltm-alt
[10:17] <SamSilver> bbl
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[10:17] <mattltm-alt> Morning jonsowman :)
[10:19] <griffonbot> Received email: John Graham-Cumming <jgc@jgc.org> "[UKHAS] GAGA-1 Sunday, April 10, 2011 0900 UTC"
[10:26] <SpeedEvil> Laurenceb_: Was anyone?
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[10:29] <Laurenceb_> it went to work address
[10:29] <Laurenceb_> need to speak to a few more people who were around at the time/shout at fedex
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[10:41] <Darkside> fsphil: about?
[10:41] <fsphil> floating about the desk a bit yea :)
[10:41] <Darkside> ok
[10:41] <Darkside> so i'm transmitting on 420.050
[10:42] <Darkside> i have qthid setting the dongle to 420.050
[10:42] <Darkside> the signal is not showing up in the middle on spectravue
[10:42] <fsphil> how have you configured spectravu?
[10:42] <Darkside> sterep complex. sample rate 96k, BW limit 96K, and centre 48K
[10:43] <Darkside> hmm hang on
[10:43] <Darkside> thats going to give ma aliases
[10:43] <Darkside> still unsure about this..
[10:44] <fsphil> lemme see if I can get a screenshot of the setup here
[10:44] <Darkside> ok
[10:45] <fsphil> if it ever loads...
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[10:46] <Lunar_Lander> hello mattltm-alt
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[10:47] <fsphil> there we go
[10:48] <fsphil> Darkside, http://i.imgur.com/UfdEP.png
[10:48] <gb73d> i just cleaned out the inside of my PC, the case would not go back on and it wouldnt start, I was going abs mental , bstard box
[10:49] <gb73d> ive defeated it I am here !!!!
[10:49] <Darkside> fsphil: same as i have here...
[10:49] <fsphil> have you changed the span?
[10:49] <fsphil> that caught me out first time
[10:50] <Darkside> yeah
[10:50] <Darkside> i've used spectravue before
[10:50] <Darkside> its more whats showing up on the screen that doesnt seem right
[10:50] <fsphil> that's right, you had me install it once
[10:50] <Darkside> so i'm expecting 48KHz to line up with whatever qthid has programmrd the dongle for
[10:50] <Darkside> but it doesnt seem to work
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[10:51] <Darkside> i.e. my handheld is transmitting on 420.050, and i see the signal on the far right of the screen
[10:51] <Darkside> around what i would expect to be 420.050 + about 40Hz
[10:51] <griffonbot> Received email: "Graham Shirville" <g.shirville@btinternet.com> "Re: [UKHAS] GAGA-1 Sunday, April 10, 2011 0900 UTC"
[10:52] <fsphil> I can't explain that at all -- is there anything else you can test it with? a commercial station maybe?
[10:53] <Darkside> mm
[10:53] <Darkside> i know my handheld is calibrated
[10:53] <Darkside> maybe i have to do frequency correction or something
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[10:58] <fsphil> it's possible you're using a different version of the firmware
[10:58] <fsphil> though I doubt that would affect tuning
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[10:59] Nick change: NigelS -> Nige|S
[10:59] <Darkside> fsphil: im on 18f
[11:00] <fsphil> nah, same
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[11:01] <Nige|S> 3g dongle my a** .. cant even get a 3g signal :@
[11:03] <Darkside> aha
[11:03] <Darkside> i can set the correction
[11:03] <Darkside> and that seems to fix it
[11:03] <Darkside> ill have to calibrate it with a sig-gen at uni tomorrow
[11:04] <fsphil> aah
[11:04] <fsphil> it's really 40khz off? that's quite a bit
[11:08] <Darkside> i think its the qthid being set upincorrectly
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[11:11] <Nige|S> error: 'int tone' redeclared as different kind of symbol
[11:11] <Nige|S> in english anyone? :|
[11:12] <mattltm-alt> Right habers....
[11:12] <Nige|S> hey matt
[11:12] <Nige|S> merci for the ntx2 :D arrived today
[11:12] <fsphil> "tone" is probably being used elsewhere already
[11:12] <mattltm-alt> Hi Nige|S, fsphil
[11:12] <fsphil> g'day mattltm-alt
[11:12] <Nige|S> ahh i see it, cheers phil
[11:13] <mattltm-alt> Should the london TMA worry me with regards to launching a HAB?
[11:16] <mattltm-alt> That much huh? :P
[11:16] <fsphil> lol
[11:16] <fsphil> I'm not entirely sure what it is, but I don't think it'll be a problem
[11:17] <mattltm-alt> Its the controled airspace. I guess a NOTAM takes care of that.
[11:17] <Nige|S> hmm can i use the vcc pin as a data pin, have the avr control the power to it from that and not the power rail ?
[11:17] <fsphil> yea -- basically if the CAA and the local ATC say yes, then you shouldn't need to worry about anything else
[11:17] <mattltm-alt> fsphil: Got permission from the airport next door to launch a HAB from their grounds as part of our opening event.
[11:18] <fsphil> sweet!
[11:18] <fsphil> that'd be perfect
[11:18] <mattltm-alt> They said they would susspen local traffic for us :)
[11:18] <mattltm-alt> Anso, have a sponced putting up £300 for the launch.
[11:18] <mattltm-alt> Maybe I could use the money to learn how to type!
[11:18] <fsphil> that would pay for a good launch
[11:18] <fsphil> nah -- fuzzy typing is the new thing
[11:19] <mattltm-alt> lolz
[11:19] <fsphil> have you applied for the notam? that can sometimes take a while
[11:20] <mattltm-alt> The airport ops manager also gave me the contact details, including mobile number of the CAA Arospace Specialist AS5
[11:20] <mattltm-alt> Whatever that is!
[11:20] <fsphil> David Miller?
[11:20] <mattltm-alt> Thats the man :)
[11:21] <mattltm-alt> Nice guy so I have been told.
[11:21] <fsphil> aye - he's the one I pester all the time ;-)
[11:21] <fsphil> yea he's pretty good to deal with
[11:21] <mattltm-alt> Not done the NOTAM yet. I have a new member of staff starting on Monday and they will be organising the opening event.
[11:22] <mattltm-alt> Planning on a Saturday ond of June/start of July.
[11:23] <fsphil> still some time then .. 28 days is the minimum, but sometimes it takes longer
[11:23] <mattltm-alt> Ok, well we will pick a date on Tuseday and take a look at the NOTAM.
[11:24] <mattltm-alt> I am hoping we will be able to use your code to get images from the balloon and display them on a highdef digital projector in our conferance room :)
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[11:31] <fsphil> that'd be very cool
[11:31] <fsphil> I'm going to be doing some tests with a higher power module soon, which might allow for slightly faster reception
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[11:39] <Nige|S> hmm
[11:39] <Nige|S> fldigi not liking this c/w
[11:44] <mattltm-alt> fsphil: What module?
[11:48] mattltm-alt (~mattltm-a@mail.icm2.org.uk) left irc:
[11:49] <Laurenceb_> http://i.imgur.com/ZmJq7.jpg
[11:49] <Laurenceb_> ^is that bad? i2c bus, blue is data
[11:52] <Laurenceb_> rise looks a bit slow to me
[11:55] <Nige|S> pass.. looks cool thoguh :|
[11:55] <Nige|S> though*
[11:57] <Nige|S> http://www.amateurdeepfield.org/capture.wav .. can anyone else decode that?
[12:16] <jgrahamc> What are you listening to Nige|S?
[12:16] <Nige|S> a c/w beacon im trying to set up, its xmitting fine, but not decoding
[12:17] <jgrahamc> What speed are you sending at?
[12:19] <Nige|S> well im using james's c/w code so its ..
[12:19] <Nige|S> 15, 1200, and 3*(1200/speed)
[12:20] Lunar_Lander (~lunar_lan@p54A06B2E.dip.t-dialin.net) left irc: Quit: Nettalk6 - www.ntalk.de
[12:21] <Laurenceb_> aha order located
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[12:21] <Laurenceb_> annoyingly the sepic diodes didnt ship, so i cant get the smps up and running
[12:28] <fsphil> "ooi ooi ooi" hehe, the ntx2 isn't very good at ook
[12:29] Lunar_Lander (~lunar_lan@p54A06B2E.dip.t-dialin.net) joined #highaltitude.
[12:29] <Lunar_Lander> back
[12:30] <fsphil> decoding fine though ... "HIGH,ATITUDE,BALLOONEV,ATS-1,HIGH,ATITUDE"
[12:30] <fsphil> re lunar!
[12:31] <Lunar_Lander> did I tell you my smart move of the week :)?
[12:33] <fsphil> don't think so
[12:33] <Nige|S> hmm odd phil
[12:33] <Nige|S> doesnt decode here at all
[12:34] <jgrahamc> Who borked the hourly predictor? :-)
[12:35] <Hibby> Found out what the local QRM was
[12:35] <Hibby> yesterday
[12:35] <Lunar_Lander> well
[12:35] <Lunar_Lander> the smart move
[12:35] <fsphil> something really local Hibby?
[12:36] <Lunar_Lander> I wanted some articles by Paul Verhage from Nuts & Volts that I found through their search
[12:36] <SpeedEvil> You went to the library?.
[12:36] <Lunar_Lander> so I simply asked at #sparkfun who subscribed to N&V and someone was so kind to send me the PDFs
[12:36] <Lunar_Lander> :)
[12:36] <SpeedEvil> Ah
[12:36] <Lunar_Lander> I searched the libraries nearby
[12:36] <Hibby> aye, we've got students testing IP over UHF :/
[12:37] Action: SpeedEvil wants a library.
[12:37] <SpeedEvil> A nice two-level one with a little stream down the middle.
[12:37] <Lunar_Lander> we have the GBV, a catalogue which shows everything from the libraries accessible via interlibrary loan
[12:37] <Lunar_Lander> and they don't have N&V
[12:38] <griffonbot> @cuspaceflight: Three launches planned from the CU Spaceflight launch site over the weekend. More details will follow. #cusf [http://twitter.com/cuspaceflight/status/55972601352302593]
[12:38] <fsphil> d'oh! what kind of modules Hibby? similar to the ntx2?
[12:38] <Lunar_Lander> FINALLY!
[12:39] <Lunar_Lander> just tried the predictor in FF4 and it again stopped at "searching for wind data"
[12:39] <Lunar_Lander> now in Chrome it calculates something
[12:39] <fsphil> working well in FF4 here
[12:39] <jonsowman> Lunar_Lander: hmm, I haven't tested in FF4 but it should work
[12:39] <Lunar_Lander> launch from Churchill just now is not good
[12:39] <griffonbot> @jgrahamc: RT @cuspaceflight: Three launches planned from the CU Spaceflight launch site over the weekend. More details will follow. #cusf [http://twitter.com/jgrahamc/status/55973001048506368]
[12:39] <jonsowman> I can clear the cache
[12:39] <Lunar_Lander> would splash down near Southend-on-Sea
[12:39] <Lunar_Lander> yeah, one moment please jonsowman
[12:40] <jonsowman> sure
[12:40] <jonsowman> this is Apex's prediction http://habhub.org/predict/#!/uuid=ac27167b4dab99c281bb449e0440b5fdca57c4a1
[12:41] <Lunar_Lander> yeah, it stops in FF4
[12:41] <Lunar_Lander> can you clear the cache please?
[12:41] <jonsowman> Lunar_Lander: done
[12:43] <Lunar_Lander> thanks
[12:43] <Lunar_Lander> it now stands
[12:43] <Lunar_Lander> "Sending data to server...
[12:43] <Lunar_Lander> The server accepted the form data
[12:43] <Lunar_Lander> The server gave us uuid:
[12:43] <Lunar_Lander> 7b02a6da994112577798f9db855776e437b4b211
[12:43] <Lunar_Lander> Starting to poll for progress JSON"
[12:44] <Lunar_Lander> nothing more happens
[12:44] <jgrahamc> Hmm. Working ok for me, I just did a GAGA-1 prediction (post the cache flush) and got this: http://habhub.org/predict/#!/uuid=35a4d7a0369fe7529fac5f98909e4c21fcc237fc
[12:44] <Lunar_Lander> in Chrome, again, it works
[12:45] <Lunar_Lander> with GFS and GFS HD
[12:45] <jgrahamc> What's the difference between the two?
[12:45] <Lunar_Lander> IIRC, GFS uses 17 hoirzontal layers and GFS HD 24
[12:46] <jgrahamc> I'll use whichever one shows me not landing on the A11
[12:46] <jgrahamc> :-)
[12:46] <Lunar_Lander> GFS HD in Chrome stopped at 70%
[12:50] <jonsowman> hmm
[12:50] <Nige|S> this xmitter seems to shift loads when set low, would it hurt to keep it permenantly high ?
[12:52] <jonsowman> jgrahamc: HD is marginally more accurate at the expense of more data and more time
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[12:54] <fsphil> which module Nige|S?
[12:54] <Nige|S> rf-link
[12:54] <Nige|S> takes ages to settle
[12:54] <griffonbot> @Bernattc: RT @cuspaceflight: Three launches planned from the CU Spaceflight launch site over the weekend. More details will follow. #cusf [http://twitter.com/Bernattc/status/55976752371073025]
[12:54] <Nige|S> but i tnik im bound to a 10% duty
[12:54] <fsphil> you are yea
[12:54] <Nige|S> as the freq is 433.967
[12:55] <fsphil> though it doesn't say what time period that 10% should be in :) you could say you're doing less than 10% this month
[12:55] <Nige|S> haha very true
[12:55] <fsphil> yea 10% .. same limit the 869 modules have
[12:55] <fsphil> that'll be fin
[12:55] <fsphil> fun*
[12:56] <Nige|S> yups, guess ill stick to every 10 minutes :/
[12:56] <fsphil> saves you battery power though, which is nice
[12:56] <Nige|S> true
[12:57] <Nige|S> very busy freq this.. my waterfalls full of junk
[12:57] <fsphil> I've never actually looked ...
[12:57] <fsphil> eek
[12:58] <fsphil> getting a nasty data burst signal once every 2 seconds
[12:58] <jonsowman> car keys are around that frequency iirc
[12:58] <fsphil> stopped now, replaced by a more annoying one
[12:59] <Nige|S> oo
[12:59] <jonsowman> and garage door remotes, and all kinds of general low power consumer RF devices
[12:59] <jgrahamc> Thanks jonsowman
[12:59] <fsphil> yea, it's a lot busier than 434.075
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[13:00] <Nige|S> im wondering how good the signal is on this, seems itll take upto 12v .. more power.. better signal
[13:00] <Nige|S> fsphil, www.amateurdeepfield.org/junk.jpg
[13:01] <fsphil> that looks like what I'm hearing yup
[13:01] <fsphil> hmm I wonder if 869mhz is just as noisy
[13:01] <Nige|S> hope not lol
[13:02] <fsphil> I must throw together a small antenna
[13:03] <fsphil> anyone know how much BOC's Latex filling kit is?
[13:04] <Nige|S> pass
[13:04] <Nige|S> time to do the ntx2 .. oh yippee
[13:07] <fsphil> you'll love this bit .. more resistors!
[13:07] <fsphil> which method are you going to try? one pin or two pins?
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[13:08] <Nige|S> errm, not sure yet, if i have the pics i took from last time, it was the 2 pin method, ill try that first
[13:11] <fsphil> if you're feeling up to an experiment lemme know, I'd like to see how well the 1-pin method works for you
[13:11] <Nige|S> i can give it a go, would save me a bit of room on the breadboard / spaghetti junction .. lol
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[13:33] <Hibby> anyone clever on?
[13:33] <Hibby> anyone able to remind me of the voltage divider based RTTY circuit?
[13:34] <Dan-K2VOL> not really
[13:34] <Dan-K2VOL> :-P
[13:34] <Dan-K2VOL> I'm only clever when I have more than 6 hours of sleep
[13:34] <Hibby> dangit :p
[13:35] <Dan-K2VOL> and I got about 3 last night
[13:35] <Nige|S> Hibby, im doing an ntx2 now if you hold on for 15 / 20 mins i can let you know if it works this way
[13:35] <Nige|S> hey Dan :D
[13:35] <Dan-K2VOL> hibby don't try to cross the atlantic with a weather balloon. That's as much advice as I can muster at the moment.
[13:35] <jonsowman> haha
[13:35] <Hibby> Nige|S: nice one, cheers. Fallen out with the two pins method, really not getting any results :/
[13:36] <Nige|S> hehe its a pain!
[13:36] <Nige|S> hey jonsowman :)
[13:36] <jonsowman> hi Nige|S
[13:37] <Dan-K2VOL> morning NigelS and Jonsowman
[13:37] <jonsowman> morning Dan-K2VOL, how are things?
[13:37] <Nige|S> dan.. 3 hours sleep? :o
[13:37] <Dan-K2VOL> sorta lousy
[13:37] <jonsowman> oh dear
[13:37] <Dan-K2VOL> yeah the rest of my team is sort of abandoning the project
[13:38] <jonsowman> oh, why's that?
[13:38] <Hibby> Dan-K2VOL: shall keep it in mind
[13:38] <Dan-K2VOL> jonsowman I think they're tired of the endless work
[13:38] <jonsowman> it does seem like a huge amount of work
[13:39] <Dan-K2VOL> which is catch-22, it will end if we work some more
[13:39] <jonsowman> yep
[13:39] <jonsowman> I know that feeling
[13:40] <Dan-K2VOL> we need to test the video cam and breakaway linkage (to meet the 225N rope breaking) in the cryo chamber,
[13:40] <Dan-K2VOL> mount the video cam on the payload
[13:41] <Dan-K2VOL> mount whatever antenna we end up with
[13:41] <jonsowman> oh yes, how did the QFHs go?
[13:44] SamSilver (2985f4df@gateway/web/freenode/ip.41.133.244.223) joined #highaltitude.
[13:44] <Dan-K2VOL> beats me, the ham that offered to help has basically taken all our antennas and told us that we should have been fine on the vertical dipole (no kidding), that the Jpole he built should be fine, that we have local intermod here at the hackerspace that prevents reception, and that we need to cart the paylaod out to some suburban office parking lot to test it tonight, and been extremely negative about anything to do with the QFH.
[13:45] <Dan-K2VOL> I do not think we have intermod, as I use the 5/8ths wave whip here on a steel plate ground plane and get great signal
[13:45] <Hibby> pain :/
[13:46] <Dan-K2VOL> and JPoles from what I read are horribly variable in SWR and radiation pattern if you put them near metal objects, like a dangling HF antenna perhaps
[13:46] <Dan-K2VOL> that's swinging in the breeze
[13:47] <Dan-K2VOL> and he's coming up with all kinds of reasons that our QFH won't work, instead of just fixing the damn thing, or letting us borrow his antenna analyzer so we can
[13:48] <Dan-K2VOL> sorry guys, I just have no patience left, as I've had to try to take up the slack of everyone else, which is what I expressly explained in August that I would not do for them
[13:48] <Dan-K2VOL> when they demanded that we not wait until next winter to fly, that we fly this winter
[13:48] <Hibby> grumblegrumble...
[13:48] <jonsowman> hmm yes, that happens
[13:49] <Hibby> both outputs from the microcontroller are working, but not combining after the resistors :/
[13:49] <jonsowman> interesting about the antennas, I've heard that j-poles are very sensitive to surroundings in terms of SWR too
[13:49] <Dan-K2VOL> it will be nearly impossible to launch next winter without re-doing tons of work we've done, as people leave that have made custom systems
[13:49] <jonsowman> oh that's irritating
[13:50] <jonsowman> inevitable to a more of lesser extend with such a complex project I imagine
[13:50] <jonsowman> *entent
[13:50] <jonsowman> fail. *extent
[13:51] <Dan-K2VOL> yeah, this darn things must fly now or I'm afraid it will be too much of a mess to fly later
[13:51] <Nige|S> .... Starting Testing ATS-1 1 Pin RTTY....
[13:51] <Nige|S> yeeha
[13:51] <Dan-K2VOL> nice Nigel
[13:51] <Nige|S> not me, this is purely down to fsphil :D
[13:51] <Nige|S> 1 pin rtty kicks butt :D lol
[13:51] <Dan-K2VOL> On a better note, we got news yesterday that LiveATC.net will stream the mission control audio feed
[13:52] <Nige|S> awsome!!
[13:52] <jonsowman> oh nice :)
[13:52] <Dan-K2VOL> 1 pin rtty, I assume you just leave the TX on ?
[13:52] <Nige|S> yip, phil can explain in explicit detail, lol
[13:53] <Dan-K2VOL> cool, I'll catch him
[13:54] <Nige|S> so thats t68i, c/w beacon, and ntx2, all set up and working, within 18 hours
[13:54] <Nige|S> somethings going to wrong / bang
[13:54] <fsphil> nice, you can make my next payload :p
[13:54] <jonsowman> haha, you never know :)
[13:55] <Nige|S> haha nooo phil!! but pls remind me to SAVE the code before shutting down this time ;)
[13:55] <Dan-K2VOL> ugh NigelS!
[13:55] <Dan-K2VOL> what are you programming with
[13:56] <Nige|S> not a nice mistake to make, we live and learn :/
[13:56] <Nige|S> just the arduino ide, so it's all C
[13:56] <Dan-K2VOL> cool me too, for the sat comm controller
[13:56] <Dan-K2VOL> I've really appreciated storing the arduino project in Dropbox
[13:56] <Dan-K2VOL> instant backup
[13:57] <Nige|S> i like the ide, its kinda friendly, im not exactly a good coder, id be totally stuck without the guys in here
[13:57] <Dan-K2VOL> well, when you save
[13:57] <Nige|S> i discovered github, good for sharing and backup :D
[13:57] <Dan-K2VOL> Nige|S try Notepad++ and turn on "Use External Editor" in the arduino IDE. This forces you to save every upload
[13:57] <jgrahamc> I like github. All the GAGA-1 code is in there for the taking
[13:58] <Dan-K2VOL> ugh I'm jealous, I haven't had a spare minute to learn git
[13:58] <jonsowman> version control generally, awesome
[13:58] <Dan-K2VOL> it'll be where our code goes when thigns calm down
[13:58] <Dan-K2VOL> agreed
[13:58] <jonsowman> Dan-K2VOL: the tutorials on github are really good
[13:58] <Dan-K2VOL> oh good to hear jonsowman
[13:59] <jonsowman> also I was recommended this article when I first started using git, really helped me to understand it
[13:59] <jonsowman> http://www.eecs.harvard.edu/~cduan/technical/git/
[13:59] <Dan-K2VOL> zuph scared us off by saying "you need to read this book to learn it" a zillion page manual
[13:59] <Nige|S> oo i have notepad++ ill try the external editor thingy!
[14:00] <Dan-K2VOL> I was like- I don't have time for that, and no one else knows SVN, so it's Dropbox all around!
[14:00] <Dan-K2VOL> awesome jon I'll put that on my readitlater
[14:01] <jonsowman> it's really not that bad, it's worth reading that article and some of the tutorials, but it's not /that/ complex
[14:01] <Dan-K2VOL> Nige|S it's handy, when you enable that you cannot edit (only view) in the IDE, but every time you hit the play button or upload it reloads the source from the files
[14:01] <Dan-K2VOL> yeah I figured it wouldn't be any worse than SVN
[14:01] <Nige|S> oh, thats dam handy, ill set that up now !
[14:02] <Dan-K2VOL> anyone you know use a mac for GIT? I was wondering about the preferred client
[14:02] <jonsowman> it's better than svn in many ways. not that svn is that bad, but I prefer git personally
[14:02] <jonsowman> Dan-K2VOL: yup, on a mac here :)
[14:02] <jonsowman> just do everything from command line
[14:02] <jgrahamc> I use Apple hardware, Dan-K2VOL and git. I just use the command-line git in a terminal. But I am an old fart who likes to do things at the command line.
[14:03] <Dan-K2VOL> ugh lol I don't like being forced to use commandline for things I will seldom use :-/ they don't stick in memory
[14:03] <jonsowman> Dan-K2VOL: I would really recommend using the command line, but this is a really good GUI client if you want one http://www.git-tower.com/
[14:04] <Dan-K2VOL> yeah I'll try both, I've got no moral opposition to the commandline, I've just learned that the skill will be with me longer if I have visually memorable operation
[14:05] <jonsowman> fair enough :)
[14:05] <Dan-K2VOL> thanks for teh recommendation jgrahamc and jonsowman :-)
[14:06] <Dan-K2VOL> I actually hate that our code is hidden, we intend to be open about it
[14:06] <jgrahamc> You're welcome Dan-K2VOL I agree that some people prefer the GUI approach. I tend to go for the command-line because I started programming on teletypes :-) and also because I like to understand what's happening inside the box.
[14:07] <jgrahamc> However, whatever gets people programming is fine by me!
[14:07] <jgrahamc> Also version control really, really important.
[14:07] <Dan-K2VOL> cool
[14:07] <jonsowman> Dan-K2VOL: shout if you need a hand, there are loads of people in here that use git & github
[14:07] <griffonbot> @YusraAlA: #AliSaleh sends tribal mediation to #Arhab tribe asking permission of 30 tanks to enter #Sanaa th RG camp, tribes refuse #yemen #yf [http://twitter.com/YusraAlA/status/55995184961421312]
[14:08] <jonsowman> hmm
[14:08] <Dan-K2VOL> absolutely agree on the version control. Dropbox is a very lousy version control, the interface to go back to previous versions wants to just overwrite the file in place every time
[14:08] <Dan-K2VOL> uhh what griffon?
[14:08] <jonsowman> Dan-K2VOL: it relays tweets containing certain hashtags, and emails sent to the ukhas list, to this channel
[14:08] <jonsowman> oh sorry
[14:09] <jonsowman> I thought you said "what's", not "what"
[14:09] <Dan-K2VOL> yeah, I'm wondeing what the heck arhab in that is
[14:09] <jonsowman> apologies
[14:09] <Dan-K2VOL> something arabic I suspect
[14:09] <jonsowman> and I've no idea
[14:09] <griffonbot> @YusraAlA: #AliSaleh sends tribal mediation to #Arhab tribe asking permission of 30 tanks to enter #Sanaa thru RG camp, tribes refuse #yemen #yf [http://twitter.com/YusraAlA/status/55995598997958656]
[14:09] <Dan-K2VOL> persistent whatever it is
[14:09] <jonsowman> hah
[14:10] <Laurenceb_> http://i.imgur.com/a34T7.jpg
[14:10] <Laurenceb_> ^reduced height coil cell holder works
[14:10] <Laurenceb_> i had to file off the legs and solder on new ones to get it to work
[14:10] <Dan-K2VOL> pretty board
[14:10] <jgrahamc> Arhab is a place in Yemen.
[14:10] <Dan-K2VOL> I see
[14:11] <Laurenceb_> keystone-500
[14:11] <Dan-K2VOL> haaha who knows, we might drop an ARHAB in Arhab
[14:11] <Laurenceb_> normally it has 3mm high standoffs, rather lame
[14:11] <Laurenceb_> unfortunately i scratched it a bit, cant see on thatr poor phonecam pic
[14:12] <Dan-K2VOL> lol anyone ever use http://lmgtfy.com/
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[14:12] <jonsowman> Dan-K2VOL: all the time :P
[14:12] <Dan-K2VOL> love that
[14:13] <jonsowman> hehe it's great
[14:13] <jgrahamc> I sent one of the senior people in my company a lmgtfy link and he was _not_ amused.
[14:13] <jonsowman> hahaa
[14:14] <jgrahamc> Guy was pissing me off with dumb questions.
[14:14] <Dan-K2VOL> lol!
[14:22] <Hibby> Nige|S: what's the circuit you're using for the 1pin?
[14:23] <Nige|S> 2 secs ill grab it for you
[14:24] <Hibby> cheers
[14:24] <fsphil> I made a diagram but it's backwards
[14:24] <fsphil> and only for 3.3v
[14:24] <Hibby> nice one.
[14:25] <Nige|S> ah there ya go, i got it off phil, so he's def THE ntx2 man :D
[14:25] <fsphil> don't say that :p
[14:25] <Nige|S> lol
[14:26] Action: Nige|S waits patiently for gps lock
[14:28] <fsphil> schematic: http://i.imgur.com/4BMpb.png
[14:30] <fsphil> for 5v it'll need bigger resistors
[14:30] <SpeedEvil> I recommend resistors no smaller than a corgi.
[14:31] <fsphil> a Labrador surely
[14:32] <jgrahamc> Anyone know if there's a write up of the Skypod launch the other day?
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[14:34] <Hibby> jgrahamc: there'll be in due course, once we poke them into it.
[14:34] <Hibby> fsphil: how does the code change?
[14:34] <jgrahamc> Great. Love to see all the pictures
[14:36] <Hibby> jgrahamc: saw my one last night?
[14:36] <jgrahamc> No, I did not. Where?
[14:37] <Hibby> flung it up on twitpic
[14:37] <Hibby> 2 mins
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[14:37] <Hibby> http://twitpic.com/4hpq7o
[14:38] <jonsowman> very nice Hibby :)
[14:38] <Hibby> the guys did good :)
[14:38] <Hibby> grumblegrumble, not getting anywhere with this
[14:39] <SamSilver> http://sunset-skypod.co.uk/ - launches > launch 1 > there is a write up and a dozen pics
[14:39] <Hibby> phh, not just lazy students after all!
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[14:40] <jgrahamc> Nice Hibby. When was that taken and with what camera?
[14:40] <jonsowman> bbiab
[14:40] <fsphil> Hibby, doesn't really -- but you can remove the references to the second pin
[14:41] <Nige|S> http://twitpic.com/4hy6cy
[14:41] <jgrahamc> Nice SamSilver. Thanks
[14:41] <Nige|S> meet ATS-1
[14:41] <griffonbot> @YemenPeaceNews: RT @YusraAlA: #AliSaleh sends tribal mediation to #Arhab tribe asking permission of 30 tanks to enter #Sanaa thru RG camp, tribes refuse ... [http://twitter.com/YemenPeaceNews/status/56003663952490496]
[14:42] <fsphil> don't cut the red wire Nige|S, it might explode!
[14:42] <Nige|S> lmao
[14:42] <griffonbot> @brrhom: RT @YusraAlA: #AliSaleh sends tribal mediation to #Arhab tribe asking permission of 30 tanks to enter #Sanaa thru RG camp, tribes refuse ... [http://twitter.com/brrhom/status/56003980400132096]
[14:43] <fsphil> fun going ons in Arhab
[14:44] <Hibby> jgrahamc: was from yesterday's flight
[14:44] <jgrahamc> Brilliant
[14:45] Action: Elwell needs to get a breadboard (and a clear bit of table)
[14:46] <Elwell> are they pretty much equal quality for the 'normal hobbyist' grade? any makes to avoid?
[14:46] <fsphil> All the ones I've used are more or less the same
[14:50] <Lunar_Lander> I like this line on the skypod website
[14:50] <Lunar_Lander> "The first attempt at using the GPS had been unsuccessful, telling us that it was still in Taiwan where it was made, but this was due to it being used indoors."
[14:50] <Lunar_Lander> xD
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[15:01] <Hibby> lol
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[15:07] <Hibby> half the problem is that we're using something that isn't an ntx-2.
[15:08] <fsphil> what module?
[15:09] <Hibby> s/we/they
[15:09] <Hibby> the circuit design module
[15:09] <Hibby> cdp-tx-05M-R
[15:09] <Hibby> at least I have the internal circuit
[15:11] <Hibby> ooh, finally on to something here
[15:12] <Hibby> I now have two alternating tones :)
[15:12] <fsphil> woo!
[15:12] <fsphil> the range of that module is different from the ntx2 so you'll have to play about with the resistors
[15:12] <Hibby> indeed
[15:13] <Hibby> one wire was the key, as it more or less has that as the internal datain circuit
[15:13] <Hibby> they're like, 5meg apart, but it's process :)
[15:13] <Hibby> **progress
[15:13] <fsphil> lol
[15:15] <Hibby> 4 meg...
[15:17] <fsphil> ahertz?
[15:17] <Hibby> aye
[15:17] <Hibby> And resistor values aren't changing that :/
[15:18] <fsphil> does the module accept an analogue input?
[15:18] Action: Hibby goes to read the manual
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[15:20] <Hibby> that is entirely possible
[15:21] <Hibby> yes. "Digital Input"
[15:21] <fsphil> ack
[15:21] <Hibby> morse code beacon, anyone?
[15:22] <Hibby> tbh, they won't know the difference...
[15:22] <Hibby> makes the rx end a bit more tricky, however/
[15:23] <Hibby> ukhas standard doesn't define operating mode, does it?
[15:25] <fsphil> nope
[15:26] <fsphil> though keeping it something that can be received with common equipment is ideal
[15:30] <Hibby> indeed
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[15:35] <Dan-K2VOL> Quantum Entanglement Modulation may not be compatible with dl-fldigi
[15:38] <Hibby> 20 wpm CW is, though
[15:38] <Nige|S> hmmz larger capicitor on the input, or the output ?
[15:38] <fsphil> CW is a very fuzzy mode, it's not really a digital mode
[15:38] <Hibby> depends on the application?
[15:39] <Hibby> fsphil: true. Tried and tested on arduino though, and is piss-easy to whip together in no time
[15:39] <fsphil> true true
[15:39] <fsphil> and there are some CW wizards out there
[15:39] <Hibby> any other suggestions?
[15:40] <Hibby> dl-fldigi can translate it
[15:40] <fsphil> it's not very good at it
[15:40] <Hibby> ive noticed that
[15:41] <fsphil> it's very unlikely that a string would be received well enough to pass the checksum
[15:41] <LazyLeopard> "not very good" is being too polite. ;)
[15:41] <fsphil> there's not much else you can do with that module, if it's to be received on amateur equipment
[15:41] <Lunar_Lander> so the normal RTTY is better?
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[15:41] <fsphil> unless you can force it to do some kind of PSK31 :)
[15:42] <LazyLeopard> Certainly faster and easier to decode digitally...
[15:42] <fsphil> ooh -- hellschriber (sp?)
[15:42] <Hibby> take it hell won't work will it?
[15:42] <fsphil> but it's not digital either
[15:42] <Lunar_Lander> yeah just wanted to ask about that
[15:42] <fsphil> you can send it yea, but it's not machine decodable
[15:42] <fsphil> still a very nifty mode though
[15:42] <LazyLeopard> Some folks have been experimenting with Dominoex?
[15:42] <Lunar_Lander> hey but I got another power question before I go biking
[15:43] <Hibby> fsphil: again, fldigi not very good at it?
[15:43] <Lunar_Lander> some folks I know talked about driving a payload with a fuel cell
[15:43] <Lunar_Lander> what do you think about that?
[15:43] <fsphil> Hibby, it will display hell very nicely -- but it's an image, not text
[15:44] <Hibby> ocht.
[15:44] <fsphil> unless you add some kind of OCR, but that will probably be as reliable as CW
[15:45] <Nige|S> Lunar_Lander, what kind of cell are you thinking of ?
[15:45] <fsphil> yikes .. another big quake in japan
[15:45] <Lunar_Lander> I don't know what cell they thought of
[15:45] <Lunar_Lander> it is not my own idea you know
[15:45] <Lunar_Lander> I just wanted to think about the feasibility
[15:46] <fsphil> fuel cells seem pretty expensive
[15:46] <Lunar_Lander> yeah that is the point I have as well
[15:46] <Lunar_Lander> as well as having the requirement of liquid water onboard
[15:47] <Nige|S> yeah very costly, but i guess it would work in theory...
[15:47] <fsphil> I also believe they don't work well at low temperature
[15:47] <Lunar_Lander> yeah
[15:47] <Nige|S> meh phil beat me to it, the dont like the extreme cold
[15:47] <Lunar_Lander> they also talked about energy harvesting
[15:47] <Nige|S> they*
[15:47] <Lunar_Lander> I first thought that was bogus
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[15:48] <fsphil> compared to batteries, I don't think it's worth it
[15:48] <Lunar_Lander> and I looked it up and it means stuff like that piezo crystals make a little spark when pressed
[15:48] <Lunar_Lander> but I doubt that you could drive anything with that
[15:48] <LazyLeopard> fsphil: 7.1 dip-slip at about 50kms depth, close to shore near Sendai, yes.
[15:48] <Lunar_Lander> yeah same here fsphil
[15:49] <Lunar_Lander> like that energy harvesting
[15:49] <fsphil> yep yep -- good bit weaker than the last one LazyLeopard but still mighty big
[15:49] <LazyLeopard> Yeah.
[15:50] <LazyLeopard> Hopefully rather less likely to produce a damaging tsunami...
[15:50] <Lunar_Lander> but as I read, that energy harversting seems to be taken serious by some people
[15:50] <Lunar_Lander> at least there is a group led by the Uni of Southhampton working on it
[15:51] <fsphil> there's always a group doing something somewhere :)
[15:51] <Lunar_Lander> xD
[15:52] <Hibby> hmm
[15:52] <Hibby> hands are looking tied about this transmitter :/
[15:52] <fsphil> can't swap it for an ntx2?
[15:53] <Hibby> bit late down the line for that, unfortunately
[15:53] <Hibby> suspect the gps may be gubbed too.
[15:53] <fsphil> oi ni
[15:54] <Lunar_Lander> solar cells?
[15:54] <Lunar_Lander> good idea?
[15:55] <fsphil> always, except at night
[15:55] <Lunar_Lander> lol yeah
[15:56] <fsphil> If I was making a long-distance floater, I'd try using solar cells
[15:56] <Nige|S> mm solar
[15:57] <Lunar_Lander> lol
[15:58] <Lunar_Lander> "The McSolar, now enriched with Silicon!"
[15:58] <Nige|S> lol
[15:58] <fsphil> yummy
[16:00] <Lunar_Lander> soo
[16:00] <Lunar_Lander> 4 pm UTC
[16:00] <Lunar_Lander> bike time!
[16:00] <fsphil> nearly home time :)
[16:01] <Lunar_Lander> :)
[16:01] <Lunar_Lander> cu later
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[16:05] <Nige|S> seems alot more stable now phil
[16:06] <fsphil> bigger caps?
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[16:06] <spain_aerospace> good afternoon
[16:06] <Nige|S> yeah, changed the power output cap to 100uf and added an extra AA batt
[16:06] <Nige|S> hi spain_aerospace
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[16:07] <Hibby> right, CW seems stable enough.
[16:07] <fsphil> the extra battery probably helped
[16:07] <fsphil> the most
[16:07] <Nige|S> yep, probably be fine on the 10uf if i used new batts but .. meh
[16:08] <fsphil> the bigger cap will help too
[16:08] <Nige|S> might go put it outside in the payload box for an hour
[16:08] <fsphil> esp. as the battery drains
[16:08] <Nige|S> anyone about to set up the tracker?
[16:10] <spain_aerospace> does anyone know anything about the program to calculate trajectories?
[16:10] <Nige|S> the program on habhub.org ?
[16:10] <spain_aerospace> yes
[16:11] <spain_aerospace> we've always used this one for calculations related to high altitude balloons
[16:11] <spain_aerospace> we've carried out some experiments in barcelona
[16:11] <Nige|S> probably jonsowman is the best persin to speak to about the predictor
[16:11] <Nige|S> but fire away we will help if we can
[16:11] <spain_aerospace> thanks!
[16:11] <spain_aerospace> well
[16:11] <Randomskk> depends what you're asking about it
[16:12] <Nige|S> hey Randomskk :)
[16:12] <spain_aerospace> my problem is mainly the way to get winds information
[16:12] <Randomskk> yo
[16:12] <spain_aerospace> i'm taking data from GFS
[16:12] <spain_aerospace> in .grib2 format I think
[16:12] <spain_aerospace> I would like to know how do you do that
[16:12] <Randomskk> we actually use opendap
[16:13] <Randomskk> we used to use gribs but it was worse
[16:13] <Randomskk> https://github.com/jonsowman/cusf-standalone-predictor/blob/master/predict.py is the code that, among other things, downloads the data from nomads
[16:14] <spain_aerospace> ah ok perfect
[16:15] <spain_aerospace> well, i'll take a look to that opendap and nomads things before asking something else :)
[16:15] <spain_aerospace> thank you!
[16:15] <Randomskk> no problem
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[16:29] <Nige|S> brb losing 3g signal on this dongle again :@
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[16:34] <SpeedEvil> Put it on a stick.
[16:35] <NigeyS> going to introduce it to mr hammer soon!
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[16:39] <Randomskk> hi jonsowman_mob
[16:39] <jonsowman_mob> hi Randomskk
[16:41] <NigeyS> hey Jon
[16:42] <jonsowman_mob> hi NigeyS
[16:43] <SamSilver> anyone a linky for a CW TX for 20 - 80m please
[16:43] <NigeyS> you about later on jon? need an xml for the tracker for ATS if possible .. going to put it outside, possibly take or for a drive to give it a little test :D
[16:43] <jonsowman_mob> I'm driving home about 9, but I should be free until then and from 10.30 onwards
[16:44] <jonsowman_mob> just mention me on here when you want me, I get email notifications to
[16:44] <jonsowman_mob> my
[16:44] <jonsowman_mob> phone
[16:44] <NigeyS> oki brill, what do you need, just a couple of telem strings ?
[16:44] <jonsowman_mob> sorry, badly placed send button!
[16:45] <NigeyS> hehe mobile phone keyboards are a pain!
[16:46] <jonsowman_mob> yep, and frequency, baud, shift, bits per char, stop bits
[16:47] <NigeyS> no problem, i've some tinkering to do first, but will yell when done.
[16:47] <jonsowman_mob> sure :) James can do it to if he is around and I'm not
[16:48] <NigeyS> oki dokie
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[16:50] <Hibby> did we ever work out if there was a way to manually input strings for spacenearus?
[16:51] <NigeyS> i couldnt find a way to do it in fldigi
[16:52] <jonsowman_mob> http://robertharrison.org/listen/test.php
[16:52] <NigeyS> ahh
[16:54] <Hibby> aha!
[16:55] <jonsowman_mob> I'll be clearing the tracker tomorrow evening for apex, just FYI
[16:58] <NigeyS> okies, i've bought extra coffee and milk! lol
[16:59] <jonsowman_mob> haha
[17:01] <NigeyS> oh and pork and leek sausages for a nice early sausage sandwich breakfast ! :D
[17:02] <fsphil> mmm sandwiches, good idea
[17:02] <NigeyS> munch!
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[17:03] <jonsowman_mob> my car will be mostly full of caffeine and sandwiches
[17:03] <Matt_soton> and biscuits
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[17:03] <NigeyS> chocolate digestives!
[17:10] <Dan-K2VOL> jonsowman_mob I keep thinking that you're a bunch rioters led by jonsowman
[17:11] <NigeyS> lol
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[17:14] <jonsowman> muaha
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[17:44] <MNSP> hello all :)
[17:46] <NigeyS> ello MNSP
[17:46] <fsphil> ha - just got some chocolate digestives at the shop
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[17:46] <Laurenceb__> sup
[17:46] Last message repeated 1 time(s).
[17:46] <MNSP> share fsphil
[17:47] <fsphil> muhahaha
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[17:52] <MNSP> so thats a no to the choccy biccys then? :P
[17:52] <Nigel|S> is he hoarding his chocolate digestives again?
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[17:53] <MNSP> I thinks so... too busy eating to even repond :P
[17:57] <Nigel|S> :o that's shocking lol
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[18:00] <MNSP> I'm sooo upset that Im gonna have to go and get my dinner :)
[18:00] <Nigel|S> awww
[18:00] <MNSP> Its comfort eating, if I get fat now, its all fsphils fault :P
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[18:27] <tstowe> I'll be launching a 2,000g balloon on April 21
[18:27] <Nigel|S> oo where from ?
[18:28] <tstowe> South Carolina, USA
[18:30] <tstowe> testing photos are online at http://thetalon.smugmug.com/Misc/Space/Setup
[18:30] <Dan-K2VOL> tstowe where in SC?
[18:31] <Dan-K2VOL> ah Beaufort
[18:31] <Dan-K2VOL> hope you have a boat :-P
[18:31] <tstowe> we are in Beaufort (on the coast) but we will have to launch more inland
[18:31] <Dan-K2VOL> I've been down there, actually when Forest Gump came out, pretty town
[18:31] <tstowe> we havent nailed down a city yet....too far off and the weather is too unpredictable this time of year
[18:32] <tstowe> yep Forest Gump was filmed here
[18:32] <tstowe> Prince of Tides too
[18:32] <Dan-K2VOL> well I have a brother that works at the Oconee County Airport, I'm sure he'd be able to get you a good reception there. It's too far away though
[18:32] <Dan-K2VOL> Clemson
[18:33] <tstowe> right now we are looking at Jackson Middle School in Jackson
[18:33] <Dan-K2VOL> is that GPS mounted sideways?
[18:33] <Dan-K2VOL> GPS-18LVC?
[18:33] <tstowe> or Waynesville High School, right over the state line in Georgia
[18:33] <tstowe> yes, Garmin 18x, and another one is on the opposite side.
[18:34] <tstowe> yep, the LVC version
[18:34] <Dan-K2VOL> why are you mounting them sideways?
[18:35] <tstowe> why not, it won't hurt it
[18:35] <tstowe> I've got a buzzer and another antenna on the top
[18:36] <tstowe> were sending up three capsules
[18:36] <tstowe> one with a SPOT II mounted on a gimbal
[18:36] <Dan-K2VOL> I will reduce the received signal - the antennas have much higher gain to the top, and probably about nothing under the bottom of the unit
[18:36] <tstowe> second with a video camera, a point and shoot and a mini spycam
[18:37] <Dan-K2VOL> each GPS may only receive half the sky of satellites
[18:37] <Dan-K2VOL> you would be much safer mounting both flat on top
[18:37] <tstowe> you know...or an educated guess?
[18:37] <Dan-K2VOL> or receive half the sky very poorly
[18:37] <Dan-K2VOL> I know
[18:37] <tstowe> because I could move them
[18:37] <Dan-K2VOL> if you can, I would
[18:38] <Dan-K2VOL> I've got many flights experience, about 10 of which were with that GPS. it's not the most sensitive receiver
[18:38] <tstowe> it will be a little crowded up there but it shouldn't be too much trouble
[18:38] <Dan-K2VOL> but it's easy to use
[18:38] <SpeedEvil> More importantly.
[18:38] <tstowe> yeah, i've had flight where i didn't get a signal and other where it never missed a beat
[18:39] <SpeedEvil> Receive half the GPS 'sky' - with that half rotating at several RPM
[18:39] <SpeedEvil> this can really screw it up
[18:39] <Dan-K2VOL> good point speedevil
[18:39] <SpeedEvil> as it may not have any satellite for more than 3s
[18:39] <tstowe> yes, very easy to use...attached to two MT-300s
[18:40] <Dan-K2VOL> if you can someday move to a gps with a quadrifilar helical antenna (the ones with the plastic stub antenna) that type of antenn has better reception in more uniform pattern all around
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[18:40] <Lunar_Lander> 6:40 UTC end of bike time
[18:40] <Lunar_Lander> hello again
[18:41] <tstowe> Maybe i'd switch for another launch but with two of them....and a SPOT messenger...I'm pretty well covered
[18:42] <Dan-K2VOL> oh yeah
[18:42] <tstowe> ...and a PocketFox :)
[18:42] <Dan-K2VOL> you'll be in great shape
[18:42] <Dan-K2VOL> haha man you've got some money in this bird
[18:42] <Dan-K2VOL> glad you've got that tennis canon
[18:42] <tstowe> and the buzzer...you can hear it for 1/4 mile
[18:42] <tstowe> yes, some money...but it's built up over time
[18:43] <tstowe> ah yes....lots of trees around here...gotta love the tennis ball canon. :)
[18:43] Blackover (d5950cf9@gateway/web/freenode/ip.213.149.12.249) joined #highaltitude.
[18:44] <tstowe> we are going to try for the NASA competition next year and this is a training flight for a few of the teachers
[18:44] <Blackover> Mates in Russia have done it!!!
[18:45] <Dan-K2VOL> nice!
[18:45] <Dan-K2VOL> gtg
[18:45] <tstowe> done what?
[18:45] <Dan-K2VOL> check our program tstowe whitstarballoon.org
[18:46] <Blackover> first launch in Russia Far East
[18:46] <tstowe> ah
[18:46] <tstowe> will do Dan
[18:46] <Blackover> thread on local forum
[18:46] <Blackover> http://www2.amit.ru/forum/index.php?action=vthread&forum=1&topic=65804&page=15
[18:48] <Blackover> my english is really pure - what does "gtg" mean?
[18:48] <tstowe> got to go
[18:50] <tstowe> well guys gotta go too but I'll be back...cool group
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[18:58] <Lunar_Lander> I thought HABing is forbidden in russia?
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[19:00] <Nigel|S> hmm odd
[19:02] <Nigel|S> dial freq on 434.650 and the shift is to far at the end of the waterfall . 434.651 and its in the middle :|
[19:06] <jgrahamc> Saw similar things with GAGA-1 the other day.
[19:06] <Nigel|S> its ok on .51 and .49 but .50 .. its way to far off the end .. very weird
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[19:19] <jcoxon> evening all
[19:19] <Nigel|S> evening james
[19:19] <Nigel|S> brb
[19:23] <Lunar_Lander> hi jcoxon
[19:26] <jcoxon> hello
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[19:27] <MNSP> hello all :)
[19:29] <Lunar_Lander> hello
[19:29] <MNSP> hey lunar
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[19:33] <mattltm> Hi all :0
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[19:40] <Laurenceb__> http://www.intersema.ch/products/guide/calibrated/ms5607b/
[19:40] <Laurenceb__> niceeee
[19:40] <Nigel|S> hey matt
[19:40] <mattltm> Ohh tiny!
[19:40] <mattltm> Hey Nigel|S
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[20:06] <Nigel|S> ping natrium42
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[20:34] <MNSP> hello all :)
[20:34] <mattltm> Hi :0
[20:34] <Lunar_Lander> :)
[20:34] <fsphil> lo lo
[20:35] <MNSP> has hibby been around this eve, chaps?
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[20:39] <Lunar_Lander> he was on in the afternoon
[20:40] <MNSP_> ok no probs, we were talking about the video failure of skypod at the office
[20:41] <Lunar_Lander> MNSP_ so you are andrew of skypod?
[20:41] <MNSP_> no, I Mitul of the mitul/my near space project
[20:41] <Lunar_Lander> ah
[20:42] <MNSP_> lol, ah?
[20:43] <Lunar_Lander> ah=Cool!
[20:45] <MNSP_> good save sir
[20:45] <Shuffty> :-)
[20:46] <MNSP_> hey shufty :)
[20:47] <MNSP_> *shuffty
[20:47] <Shuffty> Hey mnsp
[20:47] <Shuffty> How has your dy been
[20:47] <Shuffty> day
[20:47] <Lunar_Lander> hello Shuffty
[20:48] <Shuffty> Hey Lunar!
[20:48] <Shuffty> battery is at 9% on my laptop and I knackered... think I'll go when it dies. :-)
[20:48] <Lunar_Lander> oh
[20:48] <Shuffty> :-S
[20:49] <MNSP_> wel then v. quickly my day has been good..
[20:49] Action: fsphil sends Shuffty some electrons
[20:49] <Shuffty> lol
[20:49] <Shuffty> :-) spent my evening last night reading about protons and electrons... my wife thinks Ive lost the plot
[20:49] <MNSP_> been thinking about condensation that prevents cameras in payloads being sealed in
[20:50] <Shuffty> 20 seconds - brb
[20:50] <MNSP_> 8-D I wrote the word GIMPS at my local Asda out of the spice bottles on a rack
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[20:51] <Shuffty> Sorry - back now - you were saying..
[20:51] <Shuffty> So what conclusion have you come too?
[20:54] <MNSP_> about the spice bottles? there wasn't a U otherwise I would have written GIMP SUIT
[20:54] <MNSP_> :-D
[20:54] <Lunar_Lander> xD
[20:54] <Shuffty> :-)
[20:54] <MNSP_> It's a work in progress Shuffty
[20:55] <MNSP_> but this makes for interesting reading... http://www.airliners.net/aviation-forums/tech_ops/read.main/170548/
[20:55] <MNSP_> planes use at min 2 panes for windows, with inner one used tocontrol condensation!!
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[21:01] <MNSP_> and come to think of it, how often does camera failure occur?
[21:01] <SpeedEvil> Once a flight, tops.
[21:04] <MNSP_> tops?
[21:04] <SpeedEvil> Maximum.
[21:04] <MNSP_> ah
[21:04] <MNSP_> ta
[21:04] <SpeedEvil> But yes, getting a nice window is hard.
[21:05] <SpeedEvil> For a couple of reasons.
[21:05] <MNSP_> go on (please)?
[21:05] <Upu> the general advise is don't use a window
[21:05] <SpeedEvil> You've got wet moist air inside the enclosure, that will condense on the inner surface of the glass as it goes up and gets really cold.
[21:06] <SpeedEvil> On the way down, you've got a super-chilled payload and window, that the outside moisture will condense on.
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[21:06] <SpeedEvil> In practice - most success has been with a camera turned on, constantly shooting pics - and hence being quite warm.
[21:06] <SpeedEvil> A window can be got to work - but it gets messy - for example you'd need heating the window.
[21:07] <Upu> thats my plan, always on , no window
[21:07] <SpeedEvil> Or other complexities.
[21:07] <MNSP_> ok am a bit lost why is the air insidemoist?
[21:07] <Upu> its always moist
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[21:08] <MNSP_> yes I suppose it is
[21:08] <SpeedEvil> MNSP_: Humidity of a normal day.
[21:08] <Upu> air always has some moisture in it
[21:08] <Laurenceb__> thats what she said
[21:08] <SpeedEvil> If you purge it with dry gas, then you could get away with it.
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[21:08] <Upu> or put lots of silica gel in there
[21:08] <russss> I don't think silica gel is quick enough
[21:08] <SpeedEvil> Silica gel isn't really a very fast absorber.
[21:09] <MNSP_> back when I used to paintball in late 80s we used gel inside our glasses
[21:09] <Upu> I do keep a big bag of silica gel inside the payload for storage
[21:09] <MNSP_> lol
[21:09] <SpeedEvil> An open vat of 100% sulphuric acid is much better.
[21:09] <russss> hah
[21:09] <Upu> yes I can see an issue with that though
[21:09] Action: MNSP_ note to self open sulfuric acid in polystyrene payload = good
[21:10] <jcoxon> evening all
[21:10] <Upu> evening jcoxon
[21:10] <MNSP_> hello
[21:10] <fsphil> hihihi
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[21:10] Action: jcoxon missed the post office today (couldn't get out of work) beacon might not make it to launch site
[21:11] <Upu> they still on for an early launch ?
[21:11] <Laurenceb__> http://www.intersema.ch/products/guide/calibrated/ms5607b/ <-so nice
[21:11] <jcoxon> Upu, the beacon is for the sunday launch
[21:11] <jcoxon> but yes there is a launch early sat
[21:11] <Upu> oh ok
[21:12] <Upu> why so early on sat ?
[21:12] Action: Laurenceb__ is wondering if you can extract wind gust data from pressure fluctuations
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[21:12] <SpeedEvil> That is quite nice.
[21:12] <Laurenceb__> ~half the noise of bmp085
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[21:12] <Laurenceb__> temperature drift after calibration seems to be slightly worse
[21:13] <Laurenceb__> but the lower noise is making me wonder if you can do gust extraction
[21:13] <MNSP_> Upu I think they want sunrise pictures
[21:13] <Upu> that will be pretty :)
[21:13] <Laurenceb__> applying navier stokes to the pressure fluctuations
[21:13] <MNSP_> indeed
[21:13] <Upu> right I'm off , night all o7
[21:14] <MNSP_> nite upu
[21:16] <Nigel|S> jcoxon, have you had interrupt probs with a lassen and nss before ?
[21:16] <Laurenceb__> jcoxon: where did you get your pumps from?
[21:17] <MNSP_> and I suppose making yourown transparent heating element for a window would be a tad tricky too
[21:17] <SpeedEvil> MNSP_: that's easy
[21:17] <MNSP_> lol, oh is it?
[21:17] <jcoxon> Laurenceb_ persitaltic pumps?
[21:17] <jcoxon> Nigel|S, i avoid nss
[21:17] <Laurenceb__> yes
[21:18] <SpeedEvil> MNSP_: GEt any resistive touchscreen.
[21:18] <jcoxon> Williamsons Pumps
[21:18] <SpeedEvil> MNSP_: Rip off the plastic layer, leaving the glass, apply voltage.
[21:18] Nick change: Laurenceb__ -> Laurenceb
[21:18] <MNSP_> and an old ipod screen would be a good size too
[21:18] <Laurenceb> thsanks
[21:19] <jcoxon> Laurenceb whatcha building?
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[21:20] <Laurenceb> im after hose
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[21:20] <Laurenceb> for a pitot tube
[21:20] <Laurenceb> they dont seem to sell it
[21:20] <MNSP> Thanks speedevil, has given me food for thought
[21:21] <SpeedEvil> MNSP: Or there is the rather simpler way - a ring of resistors glued to the glass.
[21:21] <MNSP> I wonder what ford use in their windscreens, they've been doing it for years
[21:22] <SpeedEvil> resistive layer, like touchscreens
[21:22] <SpeedEvil> I do have some sapphire windows.
[21:22] <SpeedEvil> Which would be awesome for edge-heating.
[21:24] <jcoxon> Steve and I have got a new potential launch site in suffolk
[21:24] <jcoxon> going to try and get a full permission like the EARs one
[21:26] <fsphil> isn't that awfully close to the wet stuff
[21:26] <jcoxon> not for when the winds go the other way
[21:27] <Laurenceb> good luck
[21:27] <Laurenceb> SpeedEvil: how is the insulating going?
[21:28] <SpeedEvil> Laurenceb: really slowly. Just spent the past week with brother moving stuff out of that half of the house.
[21:28] <SpeedEvil> I now have a pile of 10 monitors in the living room, from various places.
[21:28] <fsphil> I'm so used to the winds going east atm :)
[21:28] <Laurenceb> heh
[21:28] <SpeedEvil> From 12" mono VGA on up.
[21:29] <Laurenceb> start a museum XD
[21:29] <jcoxon> fsphil, in the summer they sometimes go west
[21:31] <jcoxon> fsphil, also for some of my long duration stuff it'll work well
[21:31] <jcoxon> less hassle in cambridge
[21:31] <jcoxon> space for bigger antennas etc
[21:31] <jcoxon> also barns to fill in
[21:32] <fsphil> aah it's the barns you photographed a while back?
[21:32] <jcoxon> yeah
[21:32] <fsphil> that would be a great spot for the floaters yea
[21:32] <jcoxon> urgh my macport installation has died
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[21:35] <Lunar_Lander> here: http://www.youtube.com/watch?v=KPhXCxYEKA0
[21:35] <Lunar_Lander> best moment is at 2:42-2:44
[21:38] Action: Laurenceb is using Konversation on gnome
[21:38] <Laurenceb> i keep losing focus on the text box
[21:39] Action: SpeedEvil is still using pidgin.
[21:39] <Laurenceb> i used to use xchat, but i want timestamps
[21:39] <SpeedEvil> xchat does timestamps.
[21:40] <Laurenceb> ah thats slightly more convinient then
[21:40] <Laurenceb> brb
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[21:43] <Laurenceb> ok, so how do i get timestamps in xchat?
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[21:44] <fsphil> Prefs > Interface > Text Box > Enable time stamps
[21:44] <Laurenceb> aha
[21:44] <SpeedEvil> yeah - that.
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[21:44] <Laurenceb> nice
[21:45] Action: Laurenceb gets back to searching for 1.5mm id silicone tube
[21:45] <MNSP> Lunar_lander, lol, crisps
[21:46] <SpeedEvil> I have some 3.8mm or so.
[21:46] <Lunar_Lander> xD
[21:46] <SpeedEvil> (aquarium tubing)
[21:46] <fsphil> someone should dub Question Time with someone going "Bla bla bla"
[21:46] <Laurenceb> heh
[21:46] <Laurenceb> its to fit on my honeywell 26pc01smt
[21:47] <Laurenceb> - 1.88mm tube connectors for the pitot
[21:47] <Laurenceb> http://www.abfishingtackle.com/acatalog/mustad-silicon-tube-15mm.html
[21:47] <Laurenceb> think thatd work - a bit short
[21:49] <jcoxon> fsphil, on a funcube dongle is there a interference on the center freq?
[21:49] <Laurenceb> yes
[21:49] <Laurenceb> its LO leakthrough
[21:49] <Laurenceb> jcoxon: is your funcube up and running?
[21:50] <jcoxon> Laurenceb sort of
[21:50] <fsphil> it's the DC thingy
[21:50] <jcoxon> its connected
[21:50] <Laurenceb> can you tune to 217MHz and check for 434mhz reception from a radiometrix?
[21:50] <fsphil> the name totally escapes me
[21:51] <fsphil> you can adjust that with the DC offset
[21:51] <jcoxon> Laurenceb sure
[21:51] <jcoxon> hold on
[21:51] <Laurenceb> fsphile: its a single conversion receiver
[21:51] <Laurenceb> LO leakage is mapped down to DC
[21:51] <Laurenceb> jcoxon: exactly half of 434.075MHz
[21:51] <Shuffty> Can somebody explain to me what a watt is, or point me in a direction as to some good information.. sorry for being thick.
[21:51] <Shuffty> :-)
[21:51] <Laurenceb> one joule per second
[21:51] <Laurenceb> wikipedia
[21:52] <Shuffty> Bloody hell that was a fast result!
[21:52] <Shuffty> Thanks launrenceb
[21:52] <Shuffty> :-)
[21:52] <Laurenceb> thats cuz i have no life
[21:52] <Shuffty> Will go and have a read bow
[21:52] <Shuffty> :-)
[21:52] <fsphil> jcoxon, there's a few methods of reducing the centre spike mentioned on the mailing list
[21:53] <Laurenceb> there will always be some noise there
[21:53] <Laurenceb> as the xtal isnt perfect, it has jitter
[21:53] <fsphil> yea it's impossible to get rid of it totally
[21:54] <Laurenceb> ive seen OFDM implimentations that use the entire spectrum out of a single conversion, and just dont use the central channels
[21:54] <Laurenceb> one simple way to do it
[21:54] <jcoxon> okay i've tuned in at 434.077
[21:54] <Laurenceb> can you see a radiometrix?
[21:55] <jcoxon> yes
[21:55] <Laurenceb> awesome
[21:55] <jcoxon> so now i've tuned to 217
[21:55] <Laurenceb> okay, 434.077/2=217.037
[21:55] <jcoxon> yes
[21:55] <jcoxon> i see it
[21:55] <Laurenceb> :(
[21:55] <Laurenceb> as i thought
[21:55] <jcoxon> sad news?
[21:56] <Laurenceb> is there any form of Signal strenght
[21:56] <Laurenceb> well to be expected
[21:56] <Laurenceb> rssi or whatever?
[21:57] <jcoxon> my DSPradio program has an S meter
[21:57] <jcoxon> +10dB
[21:57] <Laurenceb> if you read the DVBT receiver datasheets, they all mention this issue - you have to stick a SAW filter on the front to only let through the band you want
[21:57] <Laurenceb> the LO is chock full of harmonics
[21:57] <Laurenceb> each harmonic is effectively a frequency you are receiving at
[21:58] <fsphil> ooooh
[21:59] <Laurenceb> fraid i need to get some sleep - lots to do 2morrow
[21:59] <Laurenceb> thanks for running the experiments, confirms my fears about the comprimises inherent in the use of DVBT receivers :/
[21:59] <fsphil> hmm I'm not seeing that
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[22:00] <fsphil> tuned to 217.325 and there's no signal
[22:00] <jcoxon> hey jgrahamc
[22:00] <jcoxon> failed to get to the post office
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[22:00] <jcoxon> super busy work day
[22:00] <jgrahamc> OK.
[22:00] <jcoxon> will get in there early tomorrow
[22:00] <jcoxon> see if i can get sat delivery
[22:00] <jgrahamc> Will be at home Saturday morning so shouldn't miss it.
[22:01] <jgrahamc> Need some fldigi help
[22:01] <jgrahamc> Doing final testing.
[22:01] <jgrahamc> How do I know if my strings have been correctly decoded?
[22:01] <jcoxon> so do you have an xml?
[22:01] <jgrahamc> Yes, it's loaded
[22:02] <jgrahamc> And I'm getting clear strings via RTTY.
[22:02] <jcoxon> okay
[22:02] <jgrahamc> e.g. $$GAGA-1,430,03:00:34,51.4834,-0.1887,58,0.00,23.6,16.7,47*00
[22:02] <jcoxon> and what does the bottom window say?
[22:02] <jgrahamc> (Ignore the odd time)
[22:02] <jcoxon> it should say "extracting"
[22:03] <jgrahamc> Yes, it dos
[22:03] <jgrahamc> does
[22:03] <jcoxon> and does the string get parsed and pop into the seperate lat/lon boxes
[22:03] <jcoxon> ?
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[22:04] <jgrahamc> Where would I see those boxes?
[22:05] <Nigel|S> hey jgrahamc
[22:05] <jcoxon> are you running dl-fldigi --hab
[22:05] <jgrahamc> Uh.
[22:05] <jgrahamc> That might be the problem :-)
[22:05] <jgrahamc> Running it on the Mac so I had just started it by clicking the icon.
[22:06] <jcoxon> need to run the applescript icon
[22:07] <MNSP> right thats me done, night chaps :)
[22:07] <jgrahamc> Was wondering that that was for :-)
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[22:09] <jgrahamc> Does running the AppleScript start the program?
[22:09] <jcoxon> yes
[22:10] <jcoxon> or the terminal will work
[22:10] <jgrahamc> Hmm. Why is it not starting!?!?!
[22:10] <jgrahamc> I'll go to Terminal and do it
[22:10] <fsphil> he's broke it! :p
[22:10] <jcoxon> just need to run the binary with --hab
[22:10] <jcoxon> fsphil you broke it when you broke the internetz
[22:11] <fsphil> haha .. I'm still typing out all the pages ...
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[22:11] <jgrahamc> w00t!
[22:12] <jcoxon> fsphil, on qthid what is Phase and Gain
[22:12] <jgrahamc> That's working and decoding
[22:12] <jgrahamc> Thanks
[22:13] <fsphil> I'm not sure jcoxon, any time I touch them things go a bit weird
[22:13] <jcoxon> yes!
[22:13] <jcoxon> what do you have yours set to?
[22:13] <fsphil> gain at 1, phase at 0
[22:13] <jcoxon> and dc i and dc q?
[22:14] <fsphil> Those adjust the DC level for each channel -- they're used to reduce the centre frequency spike
[22:14] <fsphil> at 48khz
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[22:15] <jcoxon> its all a bit much
[22:15] <jcoxon> all these settings
[22:15] <fsphil> it is!
[22:15] <fsphil> I've played with all the gain options and filters, but usually just leave them to the defaults
[22:16] <jcoxon> i've found that fldigi only works with phase = 1
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[22:17] <fsphil> seems to work at 0 here, or it might be because I've adjust the DC I/Q settings
[22:17] <jcoxon> what are your settings?
[22:18] <fsphil> i = 0.00048, q = 0.00138
[22:23] <Lunar_Lander> night
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[22:24] <Darkside> urgh
[22:24] <Darkside> awake with only 5 hours sleep
[22:25] <Darkside> was out until 2am met balloon hunting...
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[22:35] <fsphil> find any?
[22:35] <Darkside> it landed down a steep valley
[22:35] <Darkside> which we couldn't get into
[22:36] <Darkside> we got a reasonably good location fix, within about 100m or so
[22:36] <Darkside> DFed one i mean
[22:36] <fsphil> do you keep these? or return them?
[22:36] <Darkside> keep
[22:36] <Darkside> no reward here
[22:36] <fsphil> ah
[22:36] <Darkside> back later
[22:44] <SpeedEvil> Do they turn off onlanding?
[22:45] <fsphil> hehe, funcube is receiving the ntx2 signal at 1738.650 MHz
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[22:50] <fsphil> shift has increased to 1500hz but it's still prefectly decodable
[22:53] <Darkside> SpeedEvil: no
[22:53] <Darkside> but as the batteries die, the output freq drifts
[22:54] <Darkside> i was using a SDR-IQ to watch 190KHZ of spectrum, and monitor the drifting
[22:54] <SpeedEvil> Ah
[22:56] <fsphil> mmm 190khz
[22:56] <Darkside> yeah
[22:56] <Darkside> im gonna use the funcube next time
[22:56] <Darkside> but i'm not sure about the sensitivity
[22:57] <Darkside> i had the SDR-IQ hooked to the IF output of a Icom IC-R7000
[22:57] <Darkside> which is ridiculously sensitive
[22:57] <fsphil> I've seen a few people talking about doing that with a yaesu -- can't remember the model
[22:57] <Darkside> mm
[22:57] <fsphil> with the funcube dongle
[22:57] <Darkside> yeah
[22:57] <Darkside> to the 63MHz IF
[22:57] <Darkside> i was using the 10.7MHz IF
[23:06] <Darkside> fuck that phone call went too long
[23:12] <jgrahamc> Oh yeah, baby: $$GAGA-1,53,23:12:14,51.4719,-0.1889,62,0.00,18.3,15.5,56*39
[23:12] <jgrahamc> That's a totally correct and coded by fldigi string!
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[23:19] <Nigel|S> w00t nice one john :D
[23:21] <fsphil> fantastic
[23:24] Action: fsphil puts brain in suspend mode
[23:32] <Hibby> anyone know of any HAB suitable GPS units available at short notice? one of our gruops has killed their fsa03 and there's none in stock
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[23:36] <Hibby> drop me an email on dave(at)apartment3(dot)co(dot)uk ~ im going to bed and away curling for the weekend :)
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[00:00] --- Fri Apr 8 2011