highaltitude.log.20130225

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[00:14] <Lunar_Lander> oh btw
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[00:48] <arko> dang it
[00:48] <arko> saw the signal for NOAA 15 but it was too weak :(
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[01:16] <nigelvh> Anyone up who has happened to play with an SI4464?
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[01:31] <arko> i just figured it out, if i saw off my left leg and sell it on the black market, I can afford an network analyzer1
[01:31] <arko> !
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[01:51] <nigelvh> What's your budget?
[01:52] <nigelvh> I certainly couldn't afford a professional one, but I bought this one ( http://sdr-kits.net/VNWA3_Description.html) a while back and love it.
[01:53] <nigelvh> It's very well supported, and a number of people have compared it's accuracy to a pro instrument pretty favorably.
[01:53] <nigelvh> (Not related to me, just a very satisfied customer)
[01:54] <nigelvh> Hopefully that's helpful arko
[01:55] <arko> http://www.seeedstudio.com/depot/sark110-antenna-analyzer-p-1270.html?cPath=174
[01:55] <arko> that too
[01:55] <arko> i like that
[01:55] <arko> the one you posted that is
[01:55] <arko> hmmm
[01:55] <nigelvh> The seedstudio one only goes to 200MHz
[01:55] <arko> pretty pricey
[01:56] <nigelvh> The VNWA i posted goes to 1.5GHz (and some people have experimented and brought it to 2.4GHz
[01:56] <nigelvh> I certainly can't speak to your budget or finances, but I'm not exactly rolling in the dough and I know I would replace mine in a heartbeat if it broke and I couldn't repair it.
[01:57] <arko> hmm
[01:57] <arko> i really should dish out and get one
[01:57] <arko> maybe early summer
[01:57] <nigelvh> I use mine all the time
[01:57] <arko> once i get eu stuff sorted
[01:57] <arko> :) thanks
[01:57] <arko> im reading more, i like this
[01:58] <nigelvh> Like I said, I can only tell you my experiences with it, but I've been nothing but impressed.
[01:59] <nigelvh> There's a very active yahoo group around it, and the creator is very active in the group both responding to questions, as well as adding new features to the software rather frequently.
[01:59] <arko> oh!
[02:00] <arko> good news
[02:00] <arko> i hate it when they leave it alone
[02:00] <arko> but cant blame them..
[02:00] <nigelvh> He's quite active in the group. I've emailed with him a number of times.
[02:01] <arko> :) neat
[02:01] <arko> ok time to head up the mountain, sat approaches
[02:03] <nigelvh> Have fun. If you have any questions about the VNWA, feel free to msg me. I've got all sorts of screenshots from my various measurements.
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[02:54] <arko> sweet
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[03:42] <nigelvh> Haha, I did a search for Si4463, and google thinks I want search results in swedish!
[03:48] <arko> silly google
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[06:23] <arko> dance dance dance
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[06:46] <x-f> i was a dancer all alone
[06:48] <SpeedEvil> a private dancer?
[06:49] <Elwell> "habing for money, I'll launch what you want me to do"
[06:50] <Elwell> any old payload will do
[06:50] <arko> listening to some nice music
[06:50] <arko> The M Machine
[06:50] <arko> perfect music to getting work done
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[06:58] <SpeedEvil> I am watching a naked girl balancing a gnome on her head
[06:58] <SpeedEvil> the internet is a wonderful place.
[07:06] <kokey> at least it's not KDE
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[08:15] <arko> omg
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[08:16] <arko> omg
[08:16] <arko> im so stupid
[08:16] <arko> so very stupid
[08:16] <arko> i forgot to turn up the RF Gain
[08:16] <arko> these last two attempts had such low signal for a reason....
[08:16] <arko> left RF Gain at -9.9dB
[08:16] <griffonbot> Received email: David Akerman "[UKHAS] Re: Launch Announcement - Brightwalton, Monday 25th and
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[08:26] <fsphil> hehe, I did that on my last launch arko. turned the gain and preamp off because the payload was so close it overloaded it. forgot to switch it back after launch
[08:27] <arko> FUFUUUUU
[08:27] <arko> wait there is a preamp?
[08:27] <arko> in the EZCAP?
[08:27] <fsphil> nah, this was an FCD
[08:28] <arko> any tips on the RF Gain?
[08:28] <arko> can i hurt the EZCAP if i leave it on?
[08:28] <arko> like full blast
[08:28] <fsphil> not at all
[08:29] <fsphil> but if there's a strong signal nearby it might create more noise
[08:29] <arko> perfect
[08:29] <arko> cool
[08:29] <arko> going to stay awake till 1:30 to get a signal
[08:30] <costyn> arko: what are you listening to?
[08:32] <arko> NOAA 19 in 1 hour
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[09:00] <griffonbot> @daveake: Have pushed my Pi In The Sky flight back a day (better flight predictions). It will now be on Wednesday 27th February. #raspberry_pi #UKHAS [http://twitter.com/daveake/status/305965566689169408]
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[09:30] <HixWork> good moaning
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[09:31] <griffonbot> Received email: NickB "[UKHAS] Re: Android modem and tracking app"
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[09:47] Nick change: UpuWork -> MaggieFlemming
[09:48] <arko> WOOOOOAOAAAAAHHHHH
[09:48] <arko> data from space!
[09:49] <costyn> arko: w00t
[09:49] <fsphil> nice one
[09:50] <costyn> arko: what kind of format is it?
[09:50] <arko> .awesome
[09:51] <arko> one sec, organizing brb
[09:51] Nick change: MaggieFlemming -> UpuWork
[09:55] <eroomde> morning
[09:55] <arko> http://www.flickr.com/photos/arkorobotics/sets/72157632849496489/
[09:55] <arko> data!!!
[09:55] <eroomde> nice!
[09:55] <arko> im wayy to excited
[09:55] <eroomde> so how are you decoding the dataz?
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[09:55] <arko> wxtoimg
[09:55] <arko> sdrsharp on windows
[09:56] <eroomde> can you describe in ascii the receing chain from antenna to screen
[09:56] <arko> using the ezcap Upu sent me
[09:56] <eroomde> ah ok
[09:56] <eroomde> cool
[09:56] <arko> :)
[09:58] <fsphil> the noaa signals remind me of the noise from Contact
[09:59] <arko> haha
[09:59] <arko> yeah
[09:59] <Darkside> hahah
[09:59] <arko> cops drove by while we were doing this..
[09:59] <arko> in the street
[09:59] <arko> that was fun
[09:59] <UpuWork> if they ask just say looking for aliens officer
[09:59] <arko> hahaha
[09:59] <UpuWork> and not of the Mexican variety
[09:59] <arko> "ok crazy, have a nice day"
[10:00] <arko> hahaha
[10:00] <eroomde> they didn't shoot you first just incase?
[10:01] <UpuWork> lol
[10:01] <eroomde> oh btw have the decided if the charred remains were that dude?
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[10:01] <arko> eroomde: haha, then light us on fire first you mean?
[10:01] <arko> nah
[10:01] <arko> eroomde: yeah
[10:01] <arko> he killed himself before the fire got to him
[10:02] <arko> thankfully they slowed down, looked at us.. then just drove away
[10:02] <arko> "damn kids"
[10:02] <arko> ok
[10:02] <arko> work tomorrow
[10:02] <arko> good night folks!
[10:02] <fsphil> They'll have seen worse
[10:02] <UpuWork> nn
[10:02] <fsphil> nite!
[10:02] <eroomde> i used to point the yagi at approaching cars when they were driving down the road in cambridge
[10:02] <eroomde> amusing to watch them all slam the brakes on lest they get a ticket
[10:03] <costyn> haha
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[10:13] <gonzo_> I used to help a friend out with PMR radio (proper stuff, not 446meg) and he had a transit van with a dayglow orange stripe down the side
[10:14] <gonzo_> at lunch time, we used to park it on a motorway bridge, and wearing the dayglow jackets, stand on the site pointing a sandwich at the at cars.
[10:16] <costyn> haha
[10:16] <griffonbot> Received email: Steve Aerospace "Re: [UKHAS] Re: Launch Announcement - Brightwalton, Monday 25th and
[10:17] <daveake> perfect
[10:23] <gonzo_> 600bd dave! That will be fun
[10:25] <mattltm> arco: I have a APT set up here. What reciver are you using?
[10:25] <fsphil> I'll be very interested to see the effect on range
[10:25] <costyn> mattltm: I think arko has passed out
[10:26] <mattltm> :(
[10:26] <mattltm> Decoding APT will do that to a man...
[10:26] <costyn> mattltm: and he's using a EZCAP USB dvb-t dongle
[10:26] <mattltm> Ahh, right.
[10:26] <fsphil> I tried APT once but never managed to get an image
[10:26] <mattltm> I'm just getting my system back up and running...
[10:26] <mattltm> http://m0lmk.co.uk/wxtoimg/
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[10:28] <fsphil> the first one I saw going was a geostationary sat
[10:29] <fsphil> don't believe there are any analogue weather satellites up that high anymore
[10:32] <mattltm> A lot of people have mover over to reciving Metop, EUMETSAT or Meteosat
[10:32] <mattltm> Thay are the geostationary ones
[10:32] <fsphil> I think this old one was meteosat
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[10:37] <mattltm> I much prefer APT
[10:39] <mattltm> Just somthing about grabbing an image from a sat wizzing past overhead :)
[10:43] <fsphil> make your mark on the images, laser pointer :)
[10:45] <costyn> mattltm: that is pretty cool, I had no idea you could just decode the data coming down
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[10:51] <HixWork> neither did I
[10:51] <HixWork> is it a complex job?
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[10:55] <x-f> mattltm, great pictures!
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[11:18] <Elwell> I fancy getting the dvb-s stream of eumetcast, but it's on c-band in .au so need too big a dish
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[11:19] <fsphil> you change hemisphere Elwell?
[11:19] <Elwell> yeah, moving down under
[11:20] <Elwell> rest of family there, joining as soon as I finish contract here
[11:20] <Elwell> oh and gps/tx chip arrived ta
[11:26] <fsphil> I imagine it would be a nice country to live in, I think I'd miss snow too much...
[11:30] <gonzo_> and rain
[11:30] <gonzo_> and murk
[11:30] <fsphil> it can rain pretty good there
[11:31] <Elwell> yeah, delta T between here and there is about 37 degrees at the moment
[11:32] <fsphil> haha
[11:32] <fsphil> the shock of heat after a long flight is interesting
[11:40] <Elwell> the shock of being able to move legs after a long flight is interesting
[11:41] <zyp> fsphil, or the lack of one when expected
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[11:44] <Elwell> launch delayed 5 mins
[11:46] <fsphil> oh yes, that cubesat's going up today
[11:47] <Elwell> http://www.isro.org/pslv-c20/
[11:47] <fsphil> Directory Listing Denied
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[11:47] <Elwell> http://www.isro.org/pslv-c20/c20-status.aspx sorry
[11:48] <Elwell> trying to find a stream
[11:48] <russss> the header on that site is amazing
[11:48] <x-f> here is the stream - http://webcast.gov.in/live/
[11:49] <fsphil> the live stream site is badly broken here
[11:49] <fsphil> only partially loading
[11:49] <russss> I love that the indian government web presence seems to be stuck in the mid-1990s
[11:49] <gb73d> gm laUNCH strand1 1225
[11:50] <Elwell> vlc seems happy with http://164.100.31.234/hls-live/livepkgr/_definst_/liveevent.m3u8
[11:51] <fsphil> haha
[11:51] <gb73d> http://www.webcast.gov.in/live/
[11:51] <fsphil> why are asian channels unable to get the volume right
[11:53] <eroomde> because they wing the wong number
[11:53] <eroomde> no wait...
[11:53] <jonsowman> nice
[11:54] <mattltm> lol.
[11:54] <gb73d> http://ibnlive.in.com/livetv/
[11:54] <gb73d> [11:54] <gb73d> is feeding
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[11:58] <HixWork> Costyn: http://www.wxtoimg.com/
[11:58] <Elwell> sadly the folks over at the AMS POC don't do anything interesting like this
[11:58] <HixWork> jst need another antenna on the ahckspace roof :)
[11:59] <costyn> HixWork: hehe
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[12:02] <fsphil> yikes, it was the indian david milliband
[12:03] <fsphil> over over modulation
[12:04] <daveake> Is he in the Indian Labour Chapati?
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[12:06] <fsphil> I wonder if he sounds like that in person
[12:06] <fsphil> maybe the volume is fine
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[12:07] <fsphil> and the entire middle east and asia is simply suffering from overmodulationitus
[12:07] <NigelMoby> lol its dire!
[12:08] <fsphil> can't listen anymore. I'll follow strand-1's fate from comments here :)
[12:09] <russss> heh
[12:12] <daveake> Hope the scream app has the level set better than this
[12:13] <Darkside> whats this?
[12:13] <Elwell> ah bother. r-pi only provides 50mA on the 3.3v pin?
[12:15] <daveake> Darkside The #S1Launch feed
[12:15] <daveake> Elwell That's just a number :)
[12:15] <daveake> I've run a ublox/NTX2 from it no issues
[12:15] <Elwell> ah cool - that was my goal
[12:15] <daveake> That said, better to replace with a switcher
[12:16] Action: Elwell --> food
[12:17] <Elwell> daveake: suspect its time to try and get some samples from ti
[12:26] <gb73d> [12:26] <gb73d> http://www.webcast.gov.in/live/
[12:26] <gb73d> [12:26] <gb73d> launch control footage
[12:27] <Elwell> http://174.37.229.169/isro for vlc
[12:28] <eroomde> informationings on the windings
[12:31] <gb73d> http://ibnlive.in.com/livetv/
[12:31] <gb73d> live launch countdown
[12:31] <Darkside> woo
[12:32] <Darkside> and boom
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[12:33] <HixWork> that ticker[tikka] isnt annoying is it
[12:34] <HixWork> hmmm 1km/s pretty rapid
[12:34] <Elwell> alt of 120km already - yeah
[12:35] <gb73d> fantastic launch
[12:35] <fsphil> guess the cubesat will have to work now
[12:35] <fsphil> did they plan for that?
[12:35] <Elwell> next step, SCIENCE!
[12:36] <HixWork> up to ~2km/s now
[12:39] <gonzo_> that balloon must have a hell of an inflation!
[12:39] <daveake> Wonder what the neck lift was
[12:39] <x-f> yeah, to 30 km in 90 seconds
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[12:41] <staylo> This launch bought to you by windows 98
[12:41] <fsphil> nooooooooooooo *dunk*
[12:42] <daveake> "Can you hear a scream in space?" "If it's from someone who's just seen a BSOD, yes"
[12:42] <daveake> http://www.youtube.com/watch?v=r36TcG5XZDg
[12:43] <fsphil> haha
[12:47] <Randomskk> scream in space's satellite is the last one to detach
[12:47] <griffonbot> Received email: Costyn van Dongen "[UKHAS] Launch Announcement - 2/3 March - Hyperion/Habanero from
[12:48] <daveake> Busy HAB time
[12:48] <fsphil> from...
[12:48] <daveake> LL on the 5th
[12:48] <fsphil> whoa wait, that close?
[12:48] <daveake> 5th
[12:48] <daveake> March
[12:48] <daveake> 2013
[12:48] <costyn> fsphil: long subject is long
[12:48] <daveake> Think I got that all right
[12:50] <Randomskk> yay so far so good
[12:50] <Randomskk> another separation
[12:52] <gb73d> STRaND-1 carries an amateur radio AX.25 packet radio downlink on 437.568 MHz using 9k6 bps FSK modulated data HDLC frame, NRZI encoding. The telemetry format is available here. Watch the videos in the STRaND-1 video archive.
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[12:52] <gb73d> im listening on the downlink qrg
[12:52] <Randomskk> strand-1 shouldn't be turning on for a few weeks
[12:53] <Randomskk> doubt you'll hear anything yet
[12:53] <Randomskk> aiui
[12:53] <Randomskk> there we go :D
[12:53] <Randomskk> hurrah!
[12:53] <fsphil> all good?
[12:54] <Randomskk> all satellites deployed into correct orbit
[12:54] <fsphil> fantastic
[12:54] <Randomskk> mission success
[12:54] <Randomskk> we are one step closer to finding out if you can scream... in space
[12:54] <x-f> why will it wait a few weeks now?
[12:54] Action: fsphil took a shortcut
[12:54] <Randomskk> x-f: stabalisation and bootup
[12:54] <Randomskk> and attitude stuff
[12:54] <Randomskk> and thermal bits. and things.
[12:54] <fsphil> do they have any contact with it?
[12:55] <x-f> thanks, Randomskk
[12:55] <Laurenceb> scream in space
[12:55] <Laurenceb> thats a tricky one
[12:56] <Laurenceb> wait... I think I might have the answer
[12:56] <Laurenceb> NO
[12:56] <fsphil> not strictly true
[12:57] <gonzo_> but the scream wuill be transfered mechaniocally through the spacecraft structure. And people will claim that you can 'hear' it.
[12:57] <Laurenceb> exactly
[12:57] <Laurenceb> so, EPIC FAIL
[12:57] <fsphil> someone screaming on the ISS will be heard by other crew members
[12:57] <daveake> Extending that, Earth is in space
[12:58] <daveake> But yeah the structure will pass the audio
[12:58] <fsphil> I bet they still get insurance salesmen calling
[12:59] <Laurenceb> hmm
[12:59] <Elwell> http://www.space.aau.dk/aausat3/ <-- love the timeline
[12:59] <Laurenceb> this is probably the most stupid project of all time
[13:00] <fsphil> beer
[13:00] <Elwell> worse than will I am on the mars explorer?
[13:00] <Elwell> there is a precedent for stupid
[13:01] <fsphil> oh man I had forgotten about that
[13:01] Action: fsphil tries to find his happy place again
[13:01] <Laurenceb> lolz
[13:03] <Randomskk> Laurenceb: haha thanks
[13:03] <Randomskk> I think it's pretty worthwhile
[13:03] <Randomskk> ;D
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[13:07] Action: fsphil is looking forward to seeing images
[13:07] <Laurenceb> in b4 goatse
[13:08] <Laurenceb> i know thats what it'd send back if i was involved in the project
[13:08] <costyn> lol
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[13:17] <fsphil> oh dear
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[13:22] <gb73d> 2 44871 98.6073 245.8068 0005347 261.8502 98.1779 14.33079817200821
[13:22] <gb73d> that is line 2 of the amsat TLE for Strand1
[13:23] <gb73d> looks like an error in the last value
[13:23] <gb73d> it wont plot on satpc32
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[13:24] <fsphil> I've never tried receiving 9600 bps data before, I guess it's difficult?
[13:24] <gb73d> yes even terrestrially
[13:24] <gb73d> needs a very high spec connection
[13:25] <gb73d> 1200bd is easy by comparison
[13:25] <daveake> The WRC uses (well used, they changed) 9600 baud modems between the cars and a plane overhead
[13:25] <gb73d> the Tx has to be setup
[13:25] <daveake> Satel modems
[13:26] <gb73d> i cant decode it
[13:26] <costyn> can someone approve flight doc c6e66f2af3b49012903eea185404c27d ?
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[13:28] <mattbrejza> costyn: is "start":"2013-03-30T00:00:00+00:00","end":"2013-03-31T23:59:59+01:00" correct? :/
[13:28] <costyn> no
[13:28] <costyn> :(
[13:30] <costyn> mattbrejza: thanks
[13:30] <costyn> ammended
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[13:32] <mattbrejza> it would have created a new doc though (different ID)
[13:32] <costyn> I did
[13:32] <Elwell> ah, that well known medium for specicifications such as telemetry. The excell spreadsheet.
[13:32] <costyn> there's no way to edit an existing one afaik
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[13:32] <Babs> Afternoon everythBattery question of the day:
[13:33] <costyn> c6e66f2af3b49012903eea185408d9b3 is the new one
[13:33] <costyn> mattbrejza: misread your sentence :)
[13:33] <mattbrejza> ah
[13:34] <Babs> (Damn my clunky fingers) - Afternoon everyone - Battery question of the day - when using the ublox 6 breakout board, do people bother with the coin cell battery backup or not? Start up time is less of an issue for me out in the field I guess, but i wondered whether it conferred any other advantages?
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[13:36] <mattbrejza> people dont tend to bother, time to lock isnt really an issue, especially as its powered throughout hte flight
[13:37] <daveake> yeah not worth the bother imo
[13:39] <craag> Am I right in thinking that habitat expects ground speed for payload telemetry in km/h? That's how it's printed on spacenearus, but then habitat talks about SI units..
[13:42] <Babs> Awesome, thanks both. I was quite impressed by its speed to lock from such a small unit - then i saw the pico unit. If they get any smaller we won't need to bother with the balloon, we'll be able to just attach it to a grain of pollen and let it go..
[13:42] <daveake> yeah, battery is the heaviest part on some
[13:42] <HixWork> Anyone know if Tom recovered his payload yesterday?
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[13:43] <costyn> HixWork: he did yes
[13:43] <daveake> Yes he did
[13:43] <daveake> White ball in white snow
[13:43] <daveake> :)
[13:43] <HixWork> cool, that was an excellent flight from a 100g latex
[13:43] <HixWork> 24.5km wasn't it?
[13:43] <x-f> craag, i think it was changed to m/s some time ago (which broke a few chase car apps)
[13:44] <craag> x-f: That's what I thought, so it's spacenearus that's wrong, thanks!
[13:47] <craag> Room temp: 17, internal payload temp: 33, rfm temp: 40. Glad to see something's warm in the house!
[13:49] <eroomde> http://www.youtube.com/watch?v=fuWj_1cAreQ
[13:50] <eroomde> this amused me
[13:50] <eroomde> the chicken bit is pure johnny nice=painter
[13:50] <Jess--> that's similar figures to what I was getting on the rfm22 craag, be interesting to see what yours reads in a freezer (mine went to 0 and then to 255)
[13:52] <Jess--> that was the point i gave up on temps from rfm
[13:53] <craag> Jess--: With the bare board in the freezer I got -18 on the internal temp sensor (avr adjusted for ambient), and 3 degrees on the rfm22.
[13:55] <craag> Jess--: My code, with some help from SP9UOB: https://github.com/thecraag/craag-hab/blob/Flight-proto/CRAAG2/nucode/CRAAG2/RFM22.cpp#L94
[13:56] <Jess--> I will take a nose at that, as you know I have been butchering your craag1 code
[13:57] <costyn> craag: cool to see the temp probe on the rfm works
[13:57] <Jess--> probably a silly question... why did you drops sats from the rtty?
[13:58] <craag> Jess--: I wanted short strings, I've added them back into the CRAAG2 code.
[13:59] <craag> costyn: It does work, but seems to be very internal to the RF amp, showing many degrees above ambient and being quite slow to respond to air temperature change.
[14:00] <craag> Jess--: Also, where I divide the lat/lon by 1000 in gps_get_position(), I suggest you change it to 100 instead, it'll give you a lot more accuracy.
[14:00] <craag> Not quite sure what I was thinking when I put the 1000 in...
[14:00] <Jess--> i'm with you, I would be tempted to send 5 short strings (name,id_No,lat,long,alt) and then send a longer one with extra status info (not sure how tracker reception software would handle that)
[14:01] <craag> Jess--: You can specify multiple string formats in the payload doc, although I haven't tried it.
[14:03] <Elwell> which is the best source of avr code to generate aprs strings?
[14:03] <gonzo_> do it as two payload docs?
[14:05] <craag> gonzo_: You could, but putting multiple Parser Configurations in the same doc would be more elegant.
[14:05] <fsphil> Elwell: transmitter or just the strings?
[14:05] <Jess--> my attempt at a payload doc failed dismally, someone on here kindly fixed it
[14:05] <Elwell> fsphil: both eventually, but strings for now as I'm going to test it with a 'dummy' aprx client direct
[14:06] <gonzo_> not sure I've done one cleanly eather
[14:06] <craag> Jess--: They can be tricky... I've managed to pretty much fill up the first page of genpayload with my attempts at my 868 one :P
[14:06] <fsphil> ah. I have code that is mostly for transmitting the packets, you might fine something useful out of it: https://github.com/ProjectSwift/swift/blob/master/ax25modem.c
[14:06] <fsphil> it leaves the construction of the message mostly up to the caller
[14:06] <gonzo_> the last one had to be corrected in flight
[14:07] <Elwell> fsphil: cos I want to get the timings for beaconing / telemetry descriptions less frequently than pos / temp / other datalogging I can think of
[14:07] <fsphil> swift transmits the definitions every 100 strings iirc
[14:07] <Elwell> so probably 2 loops only doing the other every 10 calls
[14:08] <fsphil> basically if(seq & 100 == 0) transmit_telemetry_stuff();
[14:08] <Elwell> yeah
[14:09] <fsphil> sorry every 60 packets, it transmits the extra bits
[14:09] <fsphil> so roughtly once per hour
[14:09] <fsphil> https://github.com/ProjectSwift/swift/blob/master/swift.c#L119
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[14:22] <Elwell> fsphil: the geofence code prevents broadcast if its within the bounding boxes?
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[14:29] <NickB1> would sunday be ok for a pico launch?
[14:29] <NickB1> http://habhub.org/predict/#!/uuid=82753060080e4ab8435c64d6f5d08897ab39027c
[14:30] <NickB1> tracking wise maybe not so
[14:31] <mattbrejza> btw NickB1 the last app update should fix the decoder issue
[14:31] <mattbrejza> i forgot a .toUpperCase()....
[14:32] <NickB1> ah great!
[14:32] <NickB1> i had a lowercase in the string
[14:32] <NickB1> so that was the problem?
[14:33] <mattbrejza> yea thought that might have been the case
[14:33] <mattbrejza> everything is done using upper case in the app, and there was one place where it didnt convert
[14:34] <NickB1> ah ok
[14:35] <NickB1> next to the problem it seemed to run great
[14:35] <NickB1> locks to the freqs very fast
[14:35] <mattbrejza> good to hear
[14:37] <NickB1> is the decoding labour intensive ?
[14:37] <NickB1> I would think it contains some FFT stuf?
[14:37] <mattbrejza> the FFT is just to track the signal though
[14:37] <eroomde> DFT after negotionations with the cpu's union
[14:38] <mattbrejza> its not too bad actually, it could be decreased by reducing hte orders of some of the filters
[14:40] <Laurenceb> someone needs to do a decoder in c
[14:40] <Laurenceb> i did some decoder stuff in matlab ages ago
[14:40] <Laurenceb> give a significant improvement on fldigi
[14:41] <NickB1> labview would be cool
[14:41] <Laurenceb> rofl
[14:41] <eroomde> no it wouldn't
[14:41] <eroomde> that sentence is never ever true
[14:41] <eroomde> ever
[14:41] <Laurenceb> obvious troll is obvious
[14:41] <eroomde> under any assumptions
[14:41] <fsphil> Elwell: that's the plan yea, UpuWork has done more on that
[14:42] <Laurenceb> especially if you work on the iranian nuclear program
[14:42] <fsphil> but it's not fully implemented in swift
[14:42] <NickB1> bad labview experience?
[14:42] <Laurenceb> did you know there is now simulink for stm32 ?
[14:42] <eroomde> there is no other kind
[14:42] <Laurenceb> what could possibly go wrong
[14:42] <mattbrejza> it wouldnt be that much effort to rewrite the decoder in c(++)
[14:42] <Laurenceb> nope
[14:42] <eroomde> it is to instrumentation and control what dairy lea is to cheese
[14:43] <Laurenceb> theres even native complex datatypes now
[14:43] <Laurenceb> (since c99)
[14:44] <mattbrejza> it barely uses complex data it does seem a bit pointless for this decoder though
[14:44] <Elwell> yeah, real men code it in epics
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[14:46] <NickB1> ok I take my words back on Labviuew ;)
[14:46] <eroomde> it's like visual basic
[14:46] <Laurenceb> i ran a frequency/time correlator to search for callsign
[14:46] <eroomde> it has a place
[14:46] <eroomde> just not anywhere near me
[14:46] <Laurenceb> then initialised a DLL/FLL
[14:46] <Laurenceb> to decode the packet doing bit sync
[14:47] <NickB1> haha true
[14:47] <Laurenceb> in the worst case it can still let you know theres something there
[14:47] <Laurenceb> - peaks from correlator but corrupted data
[14:48] <mattbrejza> yea i got the basic decoder working then went on to the next bit
[14:48] <mattbrejza> havnt had time to make any real improvment over fldigi
[14:48] <mattbrejza> in theory it should also look for the start $$ but havnt really tested that
[14:49] <mattbrejza> and once it has the callsign it can search for $$CALL rather than relying on stop/start bits
[14:49] <Laurenceb> i just had a string->binary-> correlation thingy
[14:49] <Laurenceb> yes
[14:49] <mattbrejza> i think my bit sync needs some work too
[14:49] <Laurenceb> looking for stop bits is doomed to failure
[14:49] <mattbrejza> currently uses early-late
[14:49] <Laurenceb> you need a DLL with early late yeah
[14:50] <Laurenceb> then you could even get rid of start/stop bits
[14:50] <mattbrejza> but the 'how much shall i move based on error' loop has been done very quickly
[14:50] <Laurenceb> yeah that part is faffy
[14:51] <Laurenceb> also with radiometrix and stuff you dont have phase coherency
[14:51] <mattbrejza> and im fairly sure the error is only really valid on a transition but i cant remember seeing that in the paper on it
[14:51] <Laurenceb> so you just need to do power(high frequency)-power(low frequency)
[14:51] <mattbrejza> yea mines a non coherent detector too
[14:52] <Laurenceb> at each bit edge you have unpredictable phase jump
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[14:52] <Laurenceb> heh sounds like you pretty much coded something the same as me
[14:53] <mattbrejza> sounds like you spent a bit more time on getting the performance though
[14:53] <mattbrejza> also mine auto finds the rtty signals, shift, and data bits which is nice when youre on the move
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[17:15] <Jameschristie> Hi, hoping someone can help. I work for BBC Radio Scotland. We have taken on a challenge for Comic Relief to get a photo of a red nose "in space", using a high altitude balloon. We're actually hoping to send 2...we're working with both strathclyde and Edinburgh Uni and a local primary school too. We've hit a snag in that the company that strathclyde were getting the balloons from has hit delays(we're launching 2 weeks tom
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[17:16] <chrisstubbs> Jameschristie, http://randomsolutions.co.uk is the reccomended place around here
[17:16] <Jameschristie> I'm looking for advice on where I can source a couple of balloons...reasonably fast(and I suppose as cheap as possible, give. It's for comic relief)
[17:18] <Jameschristie> Tried them....they are sold out too
[17:18] <Jameschristie> Thanks though
[17:20] <chrisstubbs> Ah, im afraid im not sure what to suggest then
[17:20] <arko> morning!
[17:20] <chrisstubbs> Hey arko
[17:21] <arko> sup chris
[17:21] <fsphil> what size are you after Jameschristie?
[17:21] <HixWork> Jameschristie, have you spokend to the CAA with regards to getting a NOTAM for launch?
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[17:22] <HixWork> hey Arko
[17:22] <arko> soup hiz
[17:22] <arko> hix*
[17:22] <HixWork> heh catching my typos :)
[17:24] <HixWork> WIN! time to leave. in a bit
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[17:24] <Jameschristie> fsphil, I think we're looking for 1200g....but if we could get close to that then we'd be happy I'd imagine
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[17:28] <fsphil> I might have a spare but I'll need to check
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[17:31] <Jameschristie> fsphil...really?!? If you'd be up for selling it to us(or even donating...it is a good cause) that would be awesome. So uv got a note of it...my email is James.christie@bbc.co.uk
[17:33] <fsphil> will check when I get home
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[17:34] <Lunar_Lander> hello
[17:34] <Lunar_Lander> could someone please approve flight document c6e66f2af3b49012903eea185440e784 ?
[17:35] <arko> you flying?
[17:35] Action: SpeedEvil idly compares the cost of a natural gas balloon vs hiring a crane.
[17:36] <Lunar_Lander> yea
[17:36] <cuddykid> Jameschristie: try Chris - he sells 1200g balloons: https://sites.google.com/site/balloonnewswebstore/
[17:36] <Lunar_Lander> hopefully
[17:37] <cuddykid> Jameschristie: and also what HixWork said, ensure you've got the CAA NOTAM application ball rolling as that needs to be requested a month out
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[17:38] Action: SpeedEvil idly wonders what the penalties for accidentally floating off a balloon with a 100kg girder below it are.
[17:38] <fsphil> I hope that wasn't a no
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[17:40] <SpeedEvil> Jameschristie: if you're releasing it, have you got CAA approval?
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[17:42] <Jameschristie> SpeedEvil....yeah, we're working with Strathclyde Uni who have done this a few times. So they're keeping us right( or rather doing the technical stuff)
[17:42] <SpeedEvil> are you sure they've got the requisite approval?
[17:43] <SpeedEvil> in general, you need specific approval for a launch or a series of launches
[17:44] <eroomde> hibby is/was strathcylde
[17:44] <Upu> just a red nose ?
[17:45] <Lunar_Lander> hi Upu
[17:45] <Upu> hi Lunar
[17:45] <Hibby> listening
[17:45] <Hibby> *was
[17:46] <arko> (language) http://i.imgur.com/4AtMMFE.png
[17:46] <Lunar_Lander> damn I forgot the radio at uni
[17:46] <arko> doh!
[17:46] <Upu> lol
[17:46] Action: Hibby reads scrollback
[17:46] <Upu> anyway Jameschristie ping me when you're back
[17:46] <Hibby> yerp, they should still have all my code, he'll be fine. It's all flawless!
[17:47] <eroomde> Hibby:
[17:47] <eroomde> ah yes
[17:47] <Lunar_Lander> Upu, but today I completed the balloon antenna
[17:47] <Hibby> as for the state of the ground station, after the fire in the building I never got to see it again :'(
[17:47] <Lunar_Lander> used perpendicular wires to form a ground plane
[17:47] <Upu> very good
[17:47] <Hibby> I think my kettle and mouldy hobnobs are all likely still there
[17:47] <Jameschristie> SpeedEvil...as far as I'm aware yes.
[17:47] <Lunar_Lander> as it was suggested here
[17:47] <SpeedEvil> k
[17:48] <Lunar_Lander> Upu, also the prediction for march 4 looks good at the moment, and compared to march 3 you like get a trajectory with a landing a little bit closer to here
[17:48] <Upu> too far away Lunar_Lander
[17:48] <Lunar_Lander> sad thing is that, as you said, that isn't realiable
[17:48] <Lunar_Lander> yea
[17:48] <Hibby> anyway, I'm leaving my current place of work, which looks a bit like this: http://instagram.com/p/WKaH6ctgIF/ to go home ;)
[17:48] <Lunar_Lander> let's hope it won't go nuts when the date approaches
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[17:57] <Lunar_Lander> I got an idea btw
[17:57] <Lunar_Lander> what about specifically contacting ham radio operators in vincinity of the predicted trajectory and landing site?
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[17:59] <eroomde> Lunar_Lander, well, it's not unusual to tell local hams
[17:59] <eroomde> makes sense
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[18:02] <eroomde> a good idea to ping some of the local clubs if you can
[18:02] <eroomde> let them know your intentions
[18:02] <Lunar_Lander> yea
[18:02] <eroomde> emphasise it's all home-made and experimental. people tend to appreciate that
[18:02] <eroomde> do you have a ham license yourself?
[18:02] <Lunar_Lander> not yet, I am planning to
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[18:13] <Elwell> oh doh. wondered why fldigi didn't come up with the balloon trackin options
[18:14] <Elwell> it appears I installed the real one not the dl- version
[18:14] <Elwell> is there a prebuilt .dmg?
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[18:19] <arko> sup eroomde
[18:29] <eroomde> yo arko
[18:29] <eroomde> not much
[18:29] <eroomde> slowed down a bit in the last hr
[18:29] <eroomde> at work for another hour or so
[18:29] <eroomde> you?
[18:30] <arko> got coffee at work
[18:30] <arko> finishing up some codez
[18:30] <arko> thinking about how to improve the antenna
[18:31] <eroomde> moar copper
[18:31] <eroomde> better tuning with little bits of foil aranged in a black magic way at the feed at the base
[18:38] <eroomde> what codez are you working on arko?
[18:38] <arko> some new stuff not public yet
[18:38] <arko> :(
[18:38] <eroomde> jpl stuff or home stuff?
[18:38] <arko> not exciting as it could be
[18:38] <arko> jpl
[18:38] <arko> at work
[18:38] <eroomde> ah righty
[18:39] <arko> yeah, i need to get an RL on that antenna and a network analyzer to optimize it
[18:39] <arko> a little bit of bending
[18:40] <arko> and some epoxy to make it a bit more permanent
[18:40] <eroomde> how long did it take you to make it?
[18:40] Action: Elwell goes hunting for autoreconf since its no longer in XCode
[18:40] <NigeyS> Elwell, http://habhub.org/files/dl-fldigi/dl-fldigi-DL3.1-macosx-10.5.8-2abd6a7.dmg for 10.5.8 or http://habhub.org/files/dl-fldigi/dl-fldigi-DL3.1-macosx-2abd6a7-d955180.zip for earlier versions
[18:40] <arko> about 2 hours
[18:40] <arko> with no calculations until i started
[18:40] <eroomde> might be a bit before your time but whitestar balloon did some nice work on flightweight qfh antennas for iridium
[18:41] <arko> some length compensating since connectors take up some length
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[18:41] <arko> hmm
[18:41] <eroomde> http://whitestarballoon.com/?p=464
[18:42] <arko> OMG
[18:42] <arko> iim so stupid
[18:42] <eroomde> money shot
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[18:42] <eroomde> http://i.imgur.com/inJC8.jpg
[18:42] <arko> http://i.imgur.com/vuIyP.jpg
[18:42] <arko> this is brilliant
[18:42] <arko> i could have used cement tubing
[18:43] <arko> tapped and perfected the bends
[18:43] <eroomde> v2 right
[18:43] <Elwell> NigeyS: 's OK will rebuild for mountain lion ta
[18:43] <arko> then did it like the picture you posted
[18:43] <eroomde> there's always a v2
[18:43] <arko> :)
[18:43] <arko> yep
[18:43] <arko> wow this is very cool
[18:43] <arko> thanks for the link
[18:43] <eroomde> np
[18:44] <eroomde> shame a plain old latex got across
[18:44] <eroomde> kind of fun when you try and do it with heavy engineering
[18:44] <Elwell> disadvantage of large dog. Puts nose on laptop while its on the table
[18:44] <eroomde> rather than simplicity and luck
[18:45] <eroomde> our work black lab wiped off a bunch of my working from the whiteboard with her wagging tale as i was giving her attention when she stood up at my desk
[18:45] <arko> i should post the video of tracking, the mid section wasn't glued down yet while we were tracking and the antenna was falling apart
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[18:45] <eroomde> took me 20 mins to figure out what i'd done
[18:45] <eroomde> is it auto-tracking?
[18:45] <arko> doh!
[18:46] <arko> lol, autotracking was my friend holding it while we yelled back and fourth
[18:46] <eroomde> human in the loop
[18:46] <arko> "no dude! turn it around" "wait wait, try -45 east again" "shit shit"
[18:46] <arko> etc etc
[18:46] <arko> but it worked
[18:46] <arko> not bad for the first time
[18:46] <eroomde> v impressive stuff
[18:47] <arko> easier than expected actually
[18:47] <arko> $50 at home depot
[18:47] <arko> copper was like $30
[18:47] <eroomde> ouch
[18:47] <eroomde> tube + wire + tape sounds cheaper :)
[18:48] <arko> yea
[18:48] <arko> they said optimal diameter is like 20mm
[18:48] <arko> im like lol
[18:48] <arko> too expensive
[18:48] <arko> plus they didnt have the proper tubing
[18:48] <arko> nor do i have the equpt to bent
[18:48] <arko> bend
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[18:49] <eroomde> that is quite thick
[18:50] <arko> yeah, but skin effect means i can just get tube
[18:50] <arko> but thats heavy
[18:50] <arko> the 4 gauge ground wire im using is quite heavy
[18:50] <eroomde> and pricey
[18:50] <arko> ^^
[18:50] <arko> v2 :)
[18:51] <eroomde> :)
[18:51] <eroomde> 15mm x 3m copper tube here is £6 for a length
[18:52] <eroomde> on this web based plumbing website
[18:52] <eroomde> that's about $10
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[18:52] <eroomde> 22mm x 3m is about $20
[18:52] <arko> yikes
[18:52] <arko> well
[18:52] <arko> thats pricy
[18:52] <arko> not bad though
[18:52] <arko> but heavy
[18:52] <arko> sigh
[18:53] <domlin> hola
[18:53] <eroomde> need to visit that rocket scrapyard of yours
[18:53] <eroomde> get a coil of copper tube
[18:53] <arko> thats the spirit
[18:53] <eroomde> that's the opportunist
[18:53] <arko> damn, i wish we had time to visit that
[18:56] <fsphil> heard on the twitters that data is being received from strand-1
[18:58] <costyn> can someone approve c6e66f2af3b49012903eea185408d9b3 please? thanks!
[18:59] <costyn> be back later.. shopping, ugh
[18:59] <fsphil> guess that not shopping for gadgets and otherwise interesting stuff?
[19:00] <chrisstubbs> me good
[19:00] <arko> fsphil: really? i was interested to find out
[19:00] <arko> cool project
[19:01] <eroomde> their website is interesting
[19:01] <eroomde> http://www.nortonsalesinc.com/rocketry.php
[19:01] <fsphil> http://www.dk3wn.info/p/?p=30998
[19:02] <fsphil> pic of the signal
[19:02] <fsphil> I'm not sure I have a good enough setup to decode it
[19:02] <arko> eroomde: sexy ladies sell rockets dude
[19:02] <arko> although
[19:02] <arko> these ones are a bit
[19:02] <Upu> skinny ?
[19:02] <arko> anerexic (bad sp)
[19:02] <Upu> ah not just me then
[19:03] <arko> nah
[19:03] <Upu> brb off to play Sir Mixalot
[19:03] <arko> cheers
[19:03] <eroomde> I think the heat affects a lot of LA's market for surplus rocketry
[19:03] <fsphil> they're cylons, they're trying to steal our defence secrets
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[19:08] <Lunar_Lander> hi mclane
[19:09] <arko> freakin toasters
[19:10] <fsphil> watched the web series Blood & Chrome few nights ago. was a bit meh
[19:10] <eroomde> i never saw that
[19:10] <fsphil> it's on youtube
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[19:11] <fsphil> https://www.youtube.com/playlist?list=ELqNRe9XfM7so
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[19:12] <eroomde> i don't really want to taint the happy original memory
[19:12] <eroomde> series 3 ep 4 adama manouvre
[19:12] <on4gb> hello on4gb greetings from belgium
[19:13] <mclane> hi Lunar_Lander
[19:13] <fsphil> the best moment of the series that
[19:13] <eroomde> the best departure from the stupid broadside-naval-battles-in-space the sci fights usually are
[19:13] <on4gb> visite the site www.frapi.eu please tu
[19:14] <eroomde> cool except for the background music
[19:15] <eroomde> which interrupted a cadenza in a piano concerto
[19:15] <eroomde> you wouldn't like me when i'm angry on4gb
[19:17] <on4gb> dommage...see you later.Have a good night
[19:17] <fsphil> DS9 was guilty of that a lot. lots of ways to approach a planet, I know, lets go through that bit where the enemy fleet is!
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[19:17] <fsphil> then lots of 2D flighting
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[19:21] <Lunar_Lander> so
[19:21] <Lunar_Lander> did somone approve the flight doc?
[19:21] <fsphil> strand-1 control room still looking busy
[19:21] <on4gb> why "angry" abt on4gb my dear erome.
[19:22] <fsphil> amsat-uk's website not handling it well :)
[19:22] <arko> fsphil: looks like so
[19:22] <arko> at least they got signal
[19:22] <fsphil> indeed
[19:22] <fsphil> wasn't heard on the last UK pass
[19:23] <fsphil> on4gb: lots of people find background music on websites annoying
[19:23] <arko> you guys listening for it?
[19:23] <arko> i'll try to tune later tonight and see if ican get it
[19:24] <fsphil> I'm gonna have a try on the next pass
[19:24] <fsphil> if I can find out how to get it into gpredict
[19:25] <Elwell> fsphil:
[19:25] <Elwell> fsphil: I just cut n pasted the TLE from amsat-uk page and then did update from file in gpredict
[19:26] <fsphil> amsat-uk isn't loading at all from me.. can you paste me the line?
[19:26] <arko> is there a NORADid?
[19:26] <eroomde> nora did
[19:26] <eroomde> tales of a glaswegian lady of the night
[19:27] <fsphil> and the best selling sequal, nora didn't
[19:27] <fsphil> sequel*
[19:27] <on4gb> have a good night bye andy on4gb
[19:27] <Elwell> skidmark:~ andrew$ cat strand.tle
[19:27] <Elwell> STRaND-1
[19:27] <Elwell> 1 44871U 58056A 13056.56026665 .00000000 00000-0 +10729-3 0 330
[19:27] <Elwell> 2 44871 98.6073 245.8068 0005347 261.8502 98.1779 14.33079817200821
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[19:27] <fsphil> nite on4gb
[19:27] <Elwell> was from earlier - dunno if they've tweaked it yet
[19:28] <fsphil> thanks, still better than what I have now
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[19:29] <arko> damn, their website is dead
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[19:29] <fsphil> yea, been dead for a while now
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[19:29] <arko> glad i have an antenna for all this now :)
[19:30] <fsphil> gpredict is ignoring it
[19:30] <Elwell> even if you do updade from file?
[19:30] <Elwell> I got (several hundred) missing and then one added
[19:31] <fsphil> 0 added
[19:31] <fsphil> it's on three lines?
[19:31] <Elwell> yeah
[19:31] <arko> there's your NORAD-ID 44871U
[19:31] <arko> thanks Elwell
[19:32] <Elwell> has a blank trailing line in mine
[19:32] <fsphil> just treid that too
[19:32] <Elwell> blame differences in the mac version of gpredict
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[19:33] <fsphil> it could be fussy about newlines
[19:34] <arko> man i had such a bad time with orbitron
[19:34] <arko> it wouldn't update the tle's
[19:34] <fsphil> hmpf. nope
[19:34] <arko> or it would but lagged even when the time was synced
[19:35] <Elwell> https://dl.dropbox.com/u/6594808/strand.tle
[19:35] <fsphil> lol, just read my mind Elwell
[19:36] <Elwell> (off to get food)
[19:36] <fsphil> that worked!
[19:36] <fsphil> the only difference is the spacing between two of the numbers
[19:37] <fsphil> ah it's orbiting backwards
[19:39] <arko> east to west?
[19:40] <fsphil> yea
[19:40] <arko> hah!
[19:40] <arko> that tripped me out about the noaa sats
[19:40] <arko> leave it to the british to fly to through space on the wrong side of the road :P
[19:41] <arko> http://25.media.tumblr.com/tumblr_m3bmchJOXG1r5sf30o1_500.jpg
[19:41] <arko> but satellites
[19:43] Action: Elwell headed out of the village on the wrong side of the road the other day
[19:43] <arko> yikes
[19:43] <fsphil> http://upload.wikimedia.org/wikipedia/commons/3/32/Countries_driving_on_the_left_or_right.svg
[19:43] <fsphil> there's more than I thought
[19:44] <Elwell> oh car. oh coming towards me. OHSHITOHSHIT IM ON WRONG SIDE.
[19:44] <fsphil> I thought it was just the british isles + ozzy
[19:44] <arko> wow india
[19:44] <arko> didnt know that one
[19:44] <Elwell> HK
[19:44] <fsphil> I think india depends on the mood of the driver
[19:44] <fsphil> +in
[19:44] <arko> fsphil lol
[19:45] <fsphil> that must be difficult where there is a land border
[19:45] <arko> "today is a left day"
[19:45] <Elwell> google images for 'hong kong flipper bridge'
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[19:46] <arko> how i imagine the border http://c.shld.net/rpx/i/s/pi/mp/11460/2997140802p?src=http%3A%2F%2Fwww.choiceavenue.com%2Ftf%2Futils%2Fecx%2Fimg%2F41N1h4PNaRL.jpg&d=e8484f24e9ce4ee716fe3930b75629602b37bdce
[19:46] <fsphil> brilliant!
[19:47] <nigelvh> Be of excellent use when they make that bridge from the UK to the US.
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[19:49] <arko> heh yeah
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[20:00] <Lunar_Lander> hi RocketBoy
[20:01] <Lunar_Lander> I got a question on the KCI-1500 I bought from you
[20:01] <Lunar_Lander> we measured the diameter of the flattened inflation appendix inside the wrapping foil of the balloon package and found it to be 4.5 cm wide
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[20:01] <Lunar_Lander> is that just because it is pressed flat or are the 3 cm that are usually given inaccurate?
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[20:03] <griffonbot> Received email: Steve Aerospace "Re: [UKHAS] Launch announcement XABEN42 - midweek"
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[20:04] <RocketBoy> Lunar_Lander: is that outside an measurement
[20:04] <Lunar_Lander> we held a ruler against the wrapped balloon
[20:05] <RocketBoy> so 4.5cm wide is 9cm circumference - so 2.86cm dia
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[20:06] <RocketBoy> are you quibbling about the 1.4mm
[20:06] <Lunar_Lander> no we were just wondering and I was thinking about that it was pressed flat that this should make a difference
[20:06] <RocketBoy> yes it pressed flat
[20:06] <Lunar_Lander> yea
[20:07] <Lunar_Lander> so I know that the 3 cm figure is OK and I got the instructions to make a filler from the Wiki
[20:07] <Lunar_Lander> and we will go to the hardware store to get a 40 mm pipe
[20:07] <RocketBoy> use 40mm pipe for filler - its a stretch but snug fit
[20:07] <Lunar_Lander> yeah
[20:08] <Lunar_Lander> and then you use some sort of device to fit in a PVC hose that goes to the He cylinder
[20:08] <RocketBoy> see wiki - http://wiki.ukhas.org.uk/guides:fill_tube
[20:08] <Lunar_Lander> yeah that I meant
[20:08] <Lunar_Lander> we printed that out
[20:09] <RocketBoy> there is an example of a totex neck and a hwoyee
[20:09] <Lunar_Lander> what was used as the fit for the hose?
[20:09] <Lunar_Lander> yea
[20:09] <Lunar_Lander> i.e. what is the white "wall" in the tube?
[20:09] <RocketBoy> yep thats what I use
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[20:11] <RocketBoy> the wall is about 3 or 4 layers of 4mm foamed PVC sheet - stuck with PVC glue - machined to fit and stuck in with PVC glue and superglue IIRC
[20:12] <Lunar_Lander> ah, thank you
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[20:14] <RocketBoy> this sort of stuff http://www.ebay.co.uk/itm/3mm-Matt-WHITE-PVC-FOAM-Board-1-Sheet-420-x-297-A3-/400173669173?pt=LH_DefaultDomain_3&hash=item5d2c359b35
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[20:18] <Lunar_Lander> yea so pretty generic material
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[20:18] <Lunar_Lander> what's "nectar"?
[20:19] <Lunar_Lander> some bonus system on eBay UK
[20:19] <Lunar_Lander> ?
[20:19] <chrisstubbs> Lunar_Lander, you get points when you buy stuff, which can then be renewed for discounts/vouchers
[20:19] <chrisstubbs> sainsburys and a few other companies also use it
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[20:20] <Lunar_Lander> ah thanks
[20:21] <Lunar_Lander> thanks RocketBoy
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[20:21] <Lunar_Lander> on Friday we scheduled to try out every step of the launch save for the balloon inflation
[20:22] <Lunar_Lander> RocketBoy, would you mind to have a look at my checklist and comment on it? Upu and chrisstubbs already did
[20:22] <RocketBoy> yeah - its best not to only inflate the balloon once
[20:23] <RocketBoy> sure - can you email it to me - getting ready for a launch tomorrow
[20:23] <Lunar_Lander> ah
[20:23] <Lunar_Lander> I can also link you to it, I uploaded it on my wordpress
[20:24] <RocketBoy> sure
[20:24] <Lunar_Lander> http://oernen2balloon.files.wordpress.com/2013/02/launch-checklist-1-english.pdf
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[20:32] <Lunar_Lander> evening dave
[20:33] <Lunar_Lander> by the way, who is responsible for habhub once again?
[20:33] <Lunar_Lander> Randomskk and DanielRichman ?
[20:33] <daveake> evening LL
[20:34] <Lunar_Lander> everything good?
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[20:35] <daveake> Launch approaching not finished yet situation normal
[20:37] <Lunar_Lander> yea
[20:38] <Lunar_Lander> I am excited to join the exclusive club of HAB fliers soon
[20:38] <Lunar_Lander> :P
[20:38] <bertrik> the 20-miles-high-club?
[20:39] <Lunar_Lander> xD yea so to speak
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[20:42] <number10> when is the launch Lunar_Lander
[20:43] <Lunar_Lander> march 5 hopefully
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[20:44] <number10> this year I presume
[20:45] <number10> do you have any people to track apart from youself
[20:46] <Lunar_Lander> I am writing e-mails to try to get people to listen in
[20:47] <daveake> Well, if it invades Poland you should be fine :)
[20:47] <number10> people will always help track if you have done the same for them.. did you get the chance to track any yourself
[20:48] <number10> I think mclane was the only launch in germany last year
[20:48] <Lunar_Lander> number10, sadly not
[20:48] <domlin> where abouts in the world are you launching from Lunar_Lander ?
[20:48] <Lunar_Lander> I tracked one single balloon, Apex Alpha
[20:48] <Lunar_Lander> Osnabruck
[20:48] <number10> ah thats a shame
[20:49] <Lunar_Lander> which is in Lower Saxony, north-west germany
[20:50] <domlin> hmm, I know that chrisstubbs likes to track, however it's probably about 300 miles away from us
[20:50] <number10> well at least you got some practice tracking Lunar_Lander, so it should go well
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[20:50] <Lunar_Lander> yeah
[20:50] <Lunar_Lander> yea
[20:50] <Lunar_Lander> Brian from Denmark wants to try to listen in
[20:50] <Lunar_Lander> and NickB1 from Belgium too
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[20:51] <Upu> You should get launching Ace Lander, smoke me a cylinder I'll be back for breakfast
[20:51] <Lunar_Lander> ?
[20:52] <Upu> http://www.youtube.com/watch?v=gXYfnWRp1Q0
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[20:54] <chrisstubbs> Been on the monday night net with the local HAM's they are VERY interested in HAB tracking so i might have some new listeners onboard from essex!
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[20:57] <Lunar_Lander> Upu, XD James Bond, WW II and some Knight Rider
[20:57] <Upu> its from Red Dwarf
[20:58] <domlin> I love Red Dwarf :P
[20:58] <Lunar_Lander> yeah
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[20:58] <Lunar_Lander> I heard that Craig Charles from Robot Wars also is in it
[20:58] <daveake> Dave
[20:58] <fsphil> you mean Craig Charles from Red Dwarf
[20:58] <Upu> Craig Charles from Red Dwarf was in Robotwars yes
[20:59] <Lunar_Lander> ah
[20:59] <Lunar_Lander> XD Turbo Boost
[20:59] <fsphil> hmmm launch tomorrow
[20:59] <fsphil> I might try the fcdp++
[20:59] <fsphil> with the inline amp
[21:01] <Elwell> but the smoke me... line is also from blackadeer (rik mayall as flashadder)
[21:01] <Jess--> anyone seen distortion on transmissions from the rfm22?
[21:02] <chrisstubbs> Jess--, no mine has been surprisingly good! maybe its a software hickup jcoxn/upu could help with
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[21:02] <Lunar_Lander> yea
[21:03] <Lunar_Lander> and the turbine sound before he breaks through the shed wall with the motorcycle
[21:03] <Lunar_Lander> clearly a Knight Rider reference
[21:03] <fsphil> what?
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[21:03] <Lunar_Lander> check the link by Upu
[21:03] <Jess--> http://81.168.22.130/waterfall.jpg
[21:03] <Lunar_Lander> or what do you mean by "what"
[21:04] <fsphil> Jess--: dunno, but I like the waterfall colours
[21:04] <Jess--> each spike causes corruption of the rtty
[21:04] <fsphil> could it be the receiver?
[21:04] <Jess--> happens whether on battery or powered by the ftdi breakout board
[21:05] <chrisstubbs> Jess-- do you get any interference with the payload off?
[21:05] <chrisstubbs> energy monitors are hell for me
[21:06] <Jess--> blank waterfall with no payload, also show the interference with no antenna on the receiver (it's close enough that it's not needed)
[21:06] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Re: Launch Announcement - Brightwalton, Monday 25th and
[21:06] <fsphil> probably external noise
[21:07] <chrisstubbs> Hm. do you have a flashing LED on the payload, that caused a slight distortion when it flashed on the NTX2 board
[21:07] <chrisstubbs> added power draw i guess
[21:07] <fsphil> that shouldn't happen
[21:08] <fsphil> have you got capacitors on the avr?
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[21:08] <Broliv> Evening all!
[21:08] <fsphil> hullo Broliv
[21:08] <Broliv> Hey Phil, how's you?
[21:08] <chrisstubbs> not on the old version, do on the new :)
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[21:09] <Jess--> nothing should be running while the rtty is transmitting because it uses delaymicroseconds (as I understand it) but in answer to the led question non there are none
[21:09] <Upu> hey Jess evening
[21:09] <Upu> does the hi / lo script work ?
[21:10] <fsphil> all good here Broliv
[21:10] <Jess--> yes, up until tonight it's been transmitting a clean signal
[21:11] <fsphil> is it on breadboard?
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[21:11] <fsphil> I got random awful signals on breadboard with the NTX2
[21:12] <Jess--> it's all soldered up as one lump (pro mini, ublox, rfm22 and lipower)
[21:12] <fsphil> oh yes, is that the little bug?
[21:12] <Lunar_Lander> hi anthony
[21:13] <Jess--> yes it is, the only change that has been made to it is to dived the lat long by 100 instead of 1000, I dont see how that could make a difference to the transmission
[21:14] <fsphil> unlikely, unless you're overflowing somewhere
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[21:15] <Jess--> I'm going to try just a solid carrier (no modulation) see if it still splatters
[21:16] <Upu> are you powering from batteries ?
[21:16] <Maxell> Could also be that the signal is too strong and the reciever is barfing all over the place
[21:17] <fsphil> yea the various USB SDR dongles don't handle strong signals well
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[21:17] <Upu> you can adjust the front end gain in SDRSharp
[21:17] <Upu> click configure next to the dongle selection drop down
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[21:21] <Jess--> am using hdsdr on the fcd pro+, no antenna connected, pre-amp off and mixer gain on minimum (payload shows S5) http://81.168.22.130/waterfall1.jpg
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[21:22] <Jess--> for reference the payload has always seemed clean from s1 through to +60db
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[21:22] <Upu> is that the single carrier ?
[21:23] <Jess--> yes
[21:23] <Jess--> I switched the high rtty signal to match the low so there should be no modulation
[21:24] <Upu> not sure
[21:26] <Jess--> it seemed odd to me too, I cant think of anything that's changed
[21:27] <fsphil> battery voltage?
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[21:29] <Lunar_Lander> DanielRichman, are you there?
[21:29] <DanielRichman> just about
[21:30] <Lunar_Lander> you are responsible for flight docs right?
[21:31] <Lunar_Lander> could you please approve flight document c6e66f2af3b49012903eea185440e784 ?
[21:33] <arko> anyone tracking Strand1 who can confirm my prediction?
[21:35] <arko> it looks like the next opportunity to hear it in Los Angeles is 03:26:43 UTC 2013-02-26
[21:36] <arko> fsphil: ^
[21:36] <arko> a little less than 6 hours from now
[21:36] Action: fsphil slides over to his C+C station
[21:36] <DanielRichman> Lunar_Lander: done
[21:36] <fsphil> (laptop, sitting on the bed)
[21:37] <arko> haha
[21:37] <arko> i want to be ready
[21:37] <Lunar_Lander> thanks
[21:37] <arko> got the downlink freq and all now
[21:37] <Lunar_Lander> DanielRichman, so it now appears in dl-fldigi and so on?
[21:37] <DanielRichman> yup
[21:37] <Lunar_Lander> thanks
[21:37] <fsphil> ISS is over horizon atm arko
[21:37] <arko> im at work :(
[21:37] <arko> no gear
[21:38] <Lunar_Lander> now we only have to hope that the weather and prediction will be good
[21:38] <fsphil> according to this you'll have AOS in 2.5 hours
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[21:40] <arko> shit
[21:40] <arko> i know this orbitron is wrong
[21:41] <arko> whats the next AOS?
[21:41] <fsphil> 01:44 .. but that doesn't match the 2.5hrs it says
[21:41] <arko> 01:44 utc?
[21:42] <arko> im confused
[21:42] <fsphil> think so
[21:42] <fsphil> it doesn't say
[21:43] <fsphil> yea, UTC
[21:43] <arko> so one opportunity in 2.5hours
[21:43] <arko> then another in 4 hours?
[21:43] <arko> err 5
[21:44] <arko> 21:34 utc now, so 5 hours
[21:44] <fsphil> it's over australia atm
[21:44] <arko> 1
[21:44] <arko> 4
[21:44] <fsphil> that match what your seeing?
[21:44] <arko> jesus
[21:44] <arko> yes!
[21:45] <arko> north west OZ
[21:45] <arko> oh look at that
[21:45] <arko> 1:50 UTC it will be overhead
[21:45] <fsphil> http://pastebin.com/z5iDw8g2
[21:46] <arko> then again at 3:30 UTC
[21:46] <arko> yup!
[21:46] <fsphil> yes that matches perfectly
[21:46] <arko> your numbers match mine
[21:46] <arko> sweet
[21:47] <fsphil> that's still not 2.5hrs from now though
[21:47] <arko> gonna have to hit the 3:30 UTC one
[21:47] <arko> i'll be at work 1:50UTC
[21:47] <arko> yeah thats like 4 hours away
[21:47] <arko> ish
[21:47] <fsphil> unless there's a very low pass
[21:48] <fsphil> the predictor skips them if the pass never gets above 5 degrees
[21:48] <arko> yeah
[21:48] <arko> it's cool
[21:49] <fsphil> yep
[21:49] <arko> thanks for double checking me
[21:49] <arko> what are you using to track?
[21:49] <fsphil> there's a very low pass at 00:11
[21:49] <fsphil> gpredict
[21:49] <fsphil> 0.96 degrees
[21:49] <fsphil> you'd need a good horizon for that one
[21:50] <arko> yeah
[21:50] <arko> im in mountain central
[21:50] <fsphil> good in some ways,
[21:50] <fsphil> we just have big hills
[21:50] <arko> soonest i have is 3:30
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[21:51] <fsphil> no more passes here until tomorrow night
[21:51] <arko> aww
[21:51] <arko> gonna try?
[21:51] <fsphil> definitly
[21:52] <fsphil> I'll try tracking manually with the yagi
[21:52] <arko> nice
[21:53] <arko> do you know how the signal is polarized?
[21:53] <Lunar_Lander> arko, btw did I link you to my new blog?
[21:53] <arko> oh no, linky?
[21:53] <Lunar_Lander> https://oernen2balloon.wordpress.com/
[21:54] <arko> nice!
[21:55] <arko> good luck :)
[21:55] <Lunar_Lander> thanks :)
[21:55] <Lunar_Lander> I think I have to write a post what Oernen is for a name
[21:55] <fsphil> I suspect it's spinning a bit atm, so probably pretty random
[21:55] <daveake> 5 years work? wow. I knew you were around when I first joined here nearly 2 years ago, but didn't realise you started that long before
[21:56] <Lunar_Lander> yeah, back then I had the first idea of a balloon
[21:56] <Lunar_Lander> I think I found the EOSS group back then
[21:56] <Lunar_Lander> but I had no idea of electronics
[21:56] <Lunar_Lander> back then I thought I would be some sort of project leader, with a radio operator and an electronics person
[21:56] <daveake> Ah OK read more now :)
[21:56] <arko> fsphil ah, they haven't stablized it?
[21:57] <fsphil> just a guess arko, the cubesats I've watched before usually tumble a bit before they stabilse
[21:57] <arko> heh
[21:57] <arko> figured
[21:58] <arko> wonder if my quadrifilar will pick it up
[21:58] <mfa298> vi
[21:59] <fsphil> yes sir
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[21:59] <arko> sweet
[21:59] <arko> it's not perfectly tuned, but im sure it will get something
[22:00] <daveake> LL On your list, use 2 cable ties to tie the balloon to the filler
[22:00] <Lunar_Lander> ok
[22:00] <daveake> I don't think it's worthwhile measuring the battery voltage if (as they should be) they're straight out of a new unopened packet
[22:01] <Lunar_Lander> yes, I just included that "for the record"
[22:01] <daveake> ok
[22:01] <daveake> You haven't got "weigh the ballast". Best to have a box there for "ballast weight should be - "
[22:02] <Lunar_Lander> that is what I meant with "calibrate ballast....free lift is F = g"
[22:02] <daveake> Oh, yet again I need to read further :)
[22:03] <daveake> and not much further :p
[22:03] <Lunar_Lander> ;)
[22:03] <daveake> OK next ...
[22:04] <daveake> ... DON'T remove the filler tube till you've tied the balloon closed (2 cable ties) AND tied a string to it with the other end held down (e.g. tie to the cylinder)
[22:04] <daveake> So it's ... put 2 cable ties on, then tie the string on, then remove the filler. Then you can fold over the neck and put another cable tie around the whole thing
[22:05] <Lunar_Lander> OK, so turn the points around there
[22:05] <daveake> yup
[22:06] <daveake> Remember that when you put the neck on the filler, you have to leave enough of the neck free (i.e. not on the filler) to be able to fit the two cable ties on
[22:07] <Lunar_Lander> yes
[22:07] <Lunar_Lander> so don't push the filler in too far
[22:07] <daveake> Nope
[22:07] <daveake> Otherwise looks good
[22:07] <Lunar_Lander> thanks
[22:08] <Lunar_Lander> we decided to scrap the 808 camera due to your and anthony's experience
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[22:08] <daveake> Yes, he killed my tracker :p
[22:09] <Lunar_Lander> xD
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[22:14] <Lunar_Lander> yea
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[22:14] <Lunar_Lander> hopefully the prediction will be good
[22:14] <daveake> yep
[22:17] <AdamDynamic> Hi everyone. Apologies for jumping into the conversation, i was wondering whether someone could help me with a question about materials required?
[22:17] <Lunar_Lander> yes
[22:17] <Randomskk> hi AdamDynamic
[22:18] <AdamDynamic> Hi guys :)
[22:18] <Randomskk> just got your email to cusf btw, we don't have any launches upcoming right atm but might soonish
[22:18] <Randomskk> still it might be worth you emailing the ukhas list to ask the same question, there are a few launches in the next week
[22:18] <Randomskk> where in the country are you?
[22:18] <AdamDynamic> I'm based in East London
[22:19] <AdamDynamic> Happy to travel to a site within a reasonable distance
[22:19] <AdamDynamic> For some reason I thought the CUSF list and UKHAS lists were run by the same people. I'll drop UKHAS an email.
[22:20] <Randomskk> heh, in a loose sense. two of the people running cusf are also moderators on the ukhas list
[22:20] <Randomskk> they are separate entities though
[22:20] <AdamDynamic> This might sound like a broad question (I'm very much still learning about this), but is there a 'beginners shopping list' of materials anywhere that you'd need for a 'first flight'?
[22:21] <AdamDynamic> i,e. "You'll need a balloon (get balloon x from shop y), you'll need a microcomputer (get this one from here...)" etc
[22:21] <Randomskk> the wiki has a lot of that, though it might be a little dispersed
[22:22] <AdamDynamic> There's a ton of information on the UKHAS site, I'm just struggling to make sense of it
[22:22] <Broliv> Best think is to checkout the UKHAS website for that: http://www.ukhas.org.uk/general:beginners_guide_to_high_altitude_ballooning
[22:22] <Broliv> *thing
[22:23] <AdamDynamic> Yeah, I've been pouring over the UKHAS site for a while now :)
[22:23] <Broliv> Hab supplies and Random engineering stock the majority of what you will need. They are also UKHAS members
[22:24] <AdamDynamic> For instance, the beginners guide says you need a GPS and a radio and a balloon
[22:24] <Broliv> There are other sources such as Farnell, sparkfun and a few other startups who hve started supplying balloon gear but Hab Supplies and Random engineering are your best bet.
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[22:24] <AdamDynamic> The GPS section of the UKHAS Supplies website has GPS Antennas, Breakout boards and Modules
[22:25] <AdamDynamic> Do I need one of each?
[22:25] <nigelvh> Though I don't believe either of them sell whole tracker systems. That's something that's been left to the user to assemble. The group tends to think of it as a learning experience to put your own tracker together.
[22:26] <Broliv> You'll need somthing like an Arduino or a rasberry pi, a GPS breakout board, radio transmitter (NTX2 is the easiest to setup)
[22:26] <AdamDynamic> I'm certainly interested in a learning experience :)
[22:26] <Broliv> You've definatly come to the right place then ;)
[22:27] <nigelvh> An arduino, an NTX2, and a Ublox GPS are the most common main components.
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[22:27] <AdamDynamic> I was just wondering whether there was a complete BOM published anywhere that would get me past the 'what do I need' stage and towards the 'starting to assemble' stage.
[22:27] <Geoff-G8DHE> There is a list of some suppliers on the Wiki http://www.ukhas.org.uk/general:suppliers
[22:28] <AdamDynamic> An arduino Mega?
[22:28] <nigelvh> A normal arduino (like the Uno or the Duemilanove are plenty capable
[22:28] <nigelvh> The pro/pro mini are the same deal on a smaller board.
[22:29] <fsphil> yea the mega is overkill for this kind of thing
[22:29] <Broliv> I use an Arduino Uno
[22:29] <AdamDynamic> Would any of the GPS breakout boards on the UKHAS Supplier site work with an Uno for example?
[22:29] <Broliv> nice and simple to get used to codeing if you have never done it before (or are really rusty)
[22:30] <Broliv> Yes, the Arduino capable breakout board
[22:30] <Broliv> I think it is the £40 one
[22:30] <nigelvh> Yes
[22:30] <fsphil> the 5V compataible one will work on the Uno
[22:31] <AdamDynamic> The "Arduino / 5V Compatible uBLOX MAX-6 Breakout With Sarantel Antenna"?
[22:31] <fsphil> yea
[22:31] <Broliv> Thats the one
[22:31] <fsphil> the module itself works at 3.3v, and that breakout board has some extra bits to allow it to talk with the 5V arduino
[22:32] <AdamDynamic> Ok cool, so if I start with an Arduino Uno, a NTX2 and the module above, I'll have everything I need for a basic payload?
[22:32] <Lunar_Lander> btw I use a arduino mega
[22:32] <Lunar_Lander> xD
[22:32] <nigelvh> Plus or minus a few resistors and capacitors.
[22:32] <fsphil> and something to receive with :)
[22:33] <AdamDynamic> There's an infographic on the 'Beginners Guide...
[22:34] <AdamDynamic> page that suggests a 'Yaesu 817' as part of the set up
[22:34] <AdamDynamic> It seems to cost a couple of hundred pounds though
[22:34] <Broliv> Yeah, don't bother with the Yaesu, go for a SDR
[22:35] <Lunar_Lander> ah other radios are possible too
[22:35] <nigelvh> The recieve radio is going to be a more expensive part of the gear
[22:35] <Lunar_Lander> a FT-790R can be found on ebay sometimes
[22:35] <nigelvh> Also, an SDR will work, but generally aren't as sensitive as a real reciever.
[22:35] <fsphil> the 790R is a wonderful receiver
[22:35] <fsphil> built like a tank
[22:35] <Broliv> SDR dongle will set you back about £40 at most and will allow you to get testing your kit. You can get a Yaesu later on
[22:36] <Geoff-G8DHE> http://bit.ly/13Lep23 for the dongle
[22:36] <craag> For testing, an SDR such as an rtl-sdr is fine. For the flight however it's a good idea to have a real radio, they are far more sensitive.
[22:36] <Broliv> Yeah the 790R is a brilliant bit of kit
[22:36] <nigelvh> If I didn't have a rig, I might lean towards the Yaesu FT-60R
[22:36] <nigelvh> Relatively inexpensive and a good little radio
[22:37] <fsphil> does it do SSB?
[22:37] <AdamDynamic> The dongle might be best way forward for now :)
[22:37] <fsphil> the dongle will be more than enough for testing
[22:37] <nigelvh> AM, but not SSB particularly
[22:37] <fsphil> and I know it's been used for tracking
[22:37] <nigelvh> I forgot you guys do that SSB stuff.
[22:37] <nigelvh> FM over here baby
[22:37] <fsphil> well we *could* do FM, but it wouldn't work :)
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[22:38] <fsphil> well it would, just not as well
[22:38] <nigelvh> That's the advantage to having more power to play with
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[22:39] <fsphil> there's been a few flights using FM with an NTX2
[22:40] <AdamDynamic> Down the line I'd like to hook a camera up to the rig to capture some shots of the earth from high altitude, how straightforward is this to do?
[22:40] <fsphil> with the right camera it's very easy
[22:40] <nigelvh> Transmitting images is not a simple prospect
[22:40] <fsphil> yea live transmittion is a bit trickier
[22:41] <fsphil> but just a standard camera -> SD card is simple
[22:41] <nigelvh> Saving images and picking up the payload after it lands is much easier
[22:41] <AdamDynamic> I think I'd be satisfied with recovering the images later (one step at a time I think :)
[22:42] <AdamDynamic> Would you say it is necessary to use the 'adventure sports' cameras? They look tough but they're also expensive?
[22:42] <fsphil> I used a Canon A560
[22:42] <nigelvh> Most consumer cameras work alright
[22:42] <fsphil> got two of ebay for £20
[22:43] <nigelvh> I've used a PowerShot A520
[22:43] <AdamDynamic> Do you do anything to the firmware or just set them off when you load them into the payload?
[22:43] <fsphil> CHDK is an alternative firmware that allows scripting on certain Canon cameras
[22:43] <nigelvh> The easiest option would be the CHDK option. I opened mine up and wired into the buttons so my flight computer could control it.
[22:43] <fsphil> I just did a basic script that took a picture every 10 seconds
[22:44] <AdamDynamic> Ah, so you use CHDK?
[22:44] <fsphil> yea
[22:44] <Lunar_Lander> AdamDynamic, just a remark
[22:44] <Randomskk> chdk is good
[22:44] <Lunar_Lander> that 808 keychain camera looks cool but I was told it can jam GPS
[22:44] <fsphil> I believe there are smarter scripts out there that can alternate between video and pictures
[22:44] <Lunar_Lander> so I decided to leave mine behind
[22:45] <fsphil> any camera has a risk of putting out noise on GPS frequencies
[22:46] <AdamDynamic> @Lunar_Lander - which keychain camera?
[22:46] <fsphil> but the cheap chinese ones tend to be worse
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[22:46] <Lunar_Lander> the so called "808"
[22:46] <Lunar_Lander> http://www.techmoan.com/blog/2011/12/25/christmas-presents-the-80816-camera.html
[22:47] <fsphil> a few flights had problems with those cameras blocking the GPS
[22:49] <AdamDynamic> Ah ok, I'll stay away from that one then (though it's faintly astonishing that cameras exist that are that small :)
[22:49] <fsphil> totally
[22:49] <fsphil> and for their size, pretty good picture quality
[22:49] <fsphil> though they don't handle motion well
[22:50] <fsphil> and they've got an annoying timestamp you can't remove
[22:50] <fsphil> and it's always at the wrong time
[22:51] <AdamDynamic> I don't think I've ever seen a timestamp on a photo that had the right time...
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[22:51] <Broliv> Right chaps i'm off. Night all
[22:51] <arko> good night!
[22:51] <nigelvh> Evening
[22:51] Broliv (Broliv@2.26.25.39) left irc:
[22:52] <AdamDynamic> Anyway, thanks a lot for all of your patience answering my questions. Seems I have lots to research on, but certainly a little more direction.
[22:52] <fsphil> it's a great learning experience doing a flight
[22:52] <nigelvh> Definitely
[22:52] <fsphil> even if it doesn't go according to plan
[22:53] <nigelvh> Which is every time
[22:53] <AdamDynamic> I'm half-tempted to just tie an empty box to the balloon for the first flight, just to get the first one out of the way :)
[22:53] <lz1dev> fsphil: especially when it doesnt go according to plan :P
[22:54] <lz1dev> AdamDynamic: do a 100, with a note, and see how many you will find
[22:55] <lz1dev> wait, i think somebody did that with paper planes
[22:55] <fsphil> yea... the result was, dubious
[22:55] <lz1dev> did they get any back?
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[22:56] <lz1dev> it was some SD card PR thing
[22:57] <fsphil> they said they did, but iirc the places they claimed they landed in where more or less impossible
[22:57] <lz1dev> http://projectspaceplanes.com/image/2959260740
[22:58] <fsphil> yep
[22:58] <lz1dev> south africa
[22:58] <lz1dev> cmon
[22:58] <nigelvh> Yeah, that's BS
[23:02] <Lunar_Lander> yea I always thought that too
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[23:03] <lz1dev> really hard to believe, must've been the best paper plane in the world ever
[23:03] <AdamDynamic> Anyway, I'm off to bed. Thanks again for all your help!
[23:04] <fsphil> g'nite!
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[23:05] <nigelvh> Evening
[23:05] <Lunar_Lander> night AdamDynamic
[23:06] Nick change: heathkid|2 -> heathkid
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[23:08] <chrisstubbs> night all
[23:09] <fsphil> g'nite
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[23:11] <Lunar_Lander> good night people it has been well here
[23:11] <Lunar_Lander> but people have to sleep
[23:11] <Lunar_Lander> and I am no one else at this
[23:11] <Lunar_Lander> (silly song, sorry)
[23:11] <Maxell> You are weak :P
[23:11] <Lunar_Lander> XD
[23:12] <nigelvh> You've just got the wrong time zone
[23:12] <nigelvh> It's three in the afternoon.
[23:12] <arko> ^^
[23:12] <arko> yep
[23:12] <Maxell> no, no no!
[23:12] <Maxell> GMT+1 will rule the world
[23:12] <arko> no way man
[23:12] <Maxell> no matter what cost
[23:12] <arko> GMT -8
[23:12] <Maxell> pfft
[23:14] <nigelvh> US Pacific Time
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[23:15] <arko> if only there were more US folk here
[23:16] <arko> i get to my lab at night to work on things and no one is on :<
[23:17] <Maxell> You should introduce more newbies with dvb-t sticks
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[23:17] <arko> heh
[23:17] <arko> our hackerspace is giving them away
[23:17] <arko> we got 10
[23:17] <arko> 5 have been given away
[23:17] <nigelvh> I always leave my client on, whether I'm around or talking is another deal.
[23:17] <arko> anyone who walks in and wants one gets one
[23:18] <nigelvh> What about someone who expresses interest over the internet?
[23:18] <nigelvh> I have a postal address you know...
[23:18] <arko> hah, you dont have one?
[23:19] <nigelvh> Nah. I haven't bothered to get one yet. I've got a variety of real HAM radios, so I haven't had the need.
[23:19] <arko> ahh
[23:19] <arko> email me an addy
[23:19] <nigelvh> Don't worry about it. I don't need one. Might as well give it to someone who will really use it.
[23:19] <Maxell> or grab one for 12 dollar
[23:20] <arko> heh, kk
[23:20] <arko> they are stupid cheap really
[23:21] <nigelvh> I've got an FT-950 and an FT-8900 as my home setup, an IC-706MKII-G in the car, and a VX-150 and a FT-60R handhelds. I'm covered.
[23:21] <arko> wow
[23:21] <arko> damn
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[23:22] <arko> i have a razor, a pencil, and a paper clip
[23:22] <arko> foxtrot that
[23:22] <nigelvh> Well, I'm an extra class HAM, and pick up radios over the years.
[23:22] <arko> ah that makes sense
[23:23] <nigelvh> I had the 706 in the house, but decided I wanted the FT-950, so I stuck the 706 in the car.
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[23:23] Nick change: [1]G8KNN-Jon -> G8KNN-Jon
[23:23] <Lunar_Lander> yea
[23:23] <Lunar_Lander> good night
[23:23] <Lunar_Lander> XD
[23:23] <nigelvh> Evening Lunar
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[23:24] <arko> i have my FT-60 with me
[23:24] <arko> and some V something or another mobile yaseu
[23:24] <nigelvh> I love my FT-60, it's a great little handheld.
[23:24] <arko> dude, it's bulletproof
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[23:24] <arko> i droppped it from 3 stories once, it just bounced
[23:24] <nigelvh> I'm quite fond of yaesu's radios
[23:25] <arko> indeed
[23:25] <nigelvh> I've got my FT-950 running WSPR presently. You can see it on the map here: http://wsprnet.org/drupal/wsprnet/map
[23:25] <nigelvh> Punch in K7NVH as the callsign, and increase the time span to a few hours.
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[23:29] <Jess--> I have the ft-60 here too, shame the batts don't last longer on them
[23:30] <nigelvh> I haven't had an issue with the batteries
[23:30] <Jess--> main radio's are ft-2000 and ft-897
[23:30] <nigelvh> Do you have the power save mode enabled?
[23:30] <arko> it has that?
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[23:31] <Jess--> the main person that uses the ft-60 is famed for long overs
[23:31] <nigelvh> Yep, there's a setting that says in recieve, turn off the recieve circuitry for some period of time, and then wake up every so often to check for a signal, if it hears anything then it stays on to hear the signal
[23:32] <nigelvh> Let me grab it and look real quick
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[23:32] <nigelvh> It's called RXSAVE in the menu
[23:33] <nigelvh> And the settings let it sleep for 200ms,300ms,500ms,1sec,2sec or off
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[00:00] --- Tue Feb 26 2013