[00:00] <mattltm> The GPSbee looks good.
[00:10] <jcoxon> night
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[00:20] <stilldavid> oh, man. really hating sparkfun right now
[00:20] <mattltm> Why?
[00:20] <stilldavid> oh, someone messed up this board: http://www.sparkfun.com/products/9945
[00:20] <stilldavid> which is the only way to interface with the ublox-5 module
[00:21] <stilldavid> I've just turned the place over looking for an old revision and couldn't find one :(
[00:21] <stilldavid> see: product comments
[00:22] <mattltm> Oh crap!
[00:23] <mattltm> Can you solder direct to the board?
[00:24] <stilldavid> the connector is just too small. I grabbed another gps unit, but I'd really like to prototype with the one that will be used on the payload
[00:24] <stilldavid> (I work at SFE, so take my comments with a grain of salt)
[00:24] <mattltm> SFE??
[00:24] <stilldavid> sparkfun electronics
[00:25] <mattltm> Ohhhh...
[00:25] <mattltm> lol
[00:25] <mattltm> I love the sparkfun site.
[00:25] <mattltm> Shame wedont have a UK distrib :(
[00:25] <stilldavid> good to hear :) I'm kind of fond of it myself
[00:26] <stilldavid> how about: you get radiometrix to the US and I'll get sparkfun to the UK
[00:26] <fsphil> postage to the uk is actually pretty good these days, so long as customs don't find it :)
[00:26] <mattltm> lol
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[00:27] <mattltm> At least you ship to the UK. There is another US site that I love that wont ship here :(
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[00:33] <fsphil> hmm.. these little battery holders are not very good
[00:33] <stilldavid> fsphil, which ones are you using?
[00:34] <fsphil> they're plastic 4x AA holders, with one of those clip connectors on top
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[00:36] <stilldavid> I like the 2x2 brick things
[00:37] <stilldavid> I'm going to need 12v on the ZP flight :-/ thinking having 4 of them, 2x6v for 16 lithiums total
[00:37] <stilldavid> thought it looks like energizer gives them out like candy, I should email them
[00:37] <fsphil> indeed, I've got a few 2x2's somewhere buried deep in a box
[00:38] <fsphil> the trouble with this one is it's too tight on the battery, and holds it away from the terminal
[00:38] <fsphil> I have to push the battery down for it to make contact
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[00:43] <fsphil> final payload weight: 505g
[00:43] <stilldavid> wow, nice
[00:44] <fsphil> under budget too, I expected 600
[00:45] <fsphil> 15 metres of nylon cord to add yet, but that's not going to add much
[00:46] <stilldavid> which balloon is this on?
[00:46] <fsphil> this is for the hadie:2 launch tomorrow
[00:47] <fsphil> er, later today
[00:47] <stilldavid> no, it's tomorrow. at 4am. :P
[00:48] <mattltm> lol
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[09:07] <Upu> morning
[09:12] <fsphil> morning Upu
[09:12] <Upu> morning fsphil
[09:12] <Upu> I can't get a precition this morning for some reason
[09:12] <Upu> but wind here anyway looks like its blowing south this morning, quickly :)
[09:13] <Upu> and we have yet more snow...
[09:13] <fsphil> this link work? http://habhub.org/predict/#!/uuid=57e4346571d991e7aaeb511267cbc6f9f57fc334
[09:13] <Upu> if you're relying on me to recover don't :)
[09:13] <fsphil> urg, snow
[09:14] <Upu> yeah thats a hike :)
[09:14] <Upu> whereever that lands :)
[09:14] <fsphil> recovery has always been optimistic for this flight
[09:15] <Upu> well I'll go and see if I can pick it up
[09:15] <Upu> and if we can get a final coordinates might have a trip up next weekend if the weather is better
[09:15] <Upu> I doubt its going anywhere if it lands up there :)
[09:15] <Upu> so you still launching ?
[09:16] <fsphil> indeedy, heading out to the launch site in about 20 minutes
[09:16] <fsphil> not sure how long it's going to take filling the balloon
[09:17] <Upu> ok cool well my radio is all charged I'll set off to my listening place when the radio horizon starts coming my way
[09:17] <Upu> Good luck!
[09:19] <fsphil> thanks!
[09:20] Action: fsphil should have made a checklist
[09:21] <Upu> yeah I have one of those :)
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[09:33] <mattltm> Mornin' all :)
[09:33] <Upu> moening
[09:33] <Upu> morning even
[09:33] <mattltm> All looking good?
[09:33] <fsphil> controlled panic, but yea ;-)
[09:33] <mattltm> the best kind of panic :)
[09:34] <fsphil> soldering up the antenna, then heading out to the launch site
[09:34] <mattltm> cool.
[09:34] <mattltm> Anyone up for a bit of mountain climbing later? lol.
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[09:44] <m1x10> Happy hi!
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[10:05] <fsphil> antenna soldered up, looks dodgey :) packing up car
[10:05] <fsphil> we're running a bit late
[10:05] <mattltm> Yay! Good luck fsphil. :)
[10:06] <m1x10> Hi fsphil
[10:20] <MrCraig_Away> good luck phil
[10:22] Nick change: MrCraig_Away -> MrCraig
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[10:27] <fsphil> no way we're making 11:00, probably 11:30
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[10:29] <jcoxon> morning
[10:29] <m1x10> oh lol, new flight?
[10:30] <MrCraig> *tips hat
[10:32] <jcoxon> its a good chance for some of the northern listeners
[10:33] <mattltm> Not sure I'll be in for much luck dwn' south.
[10:34] <jcoxon> maybe at top altitude
[10:34] <jcoxon> the current record is 555km
[10:34] <jcoxon> as in receving the data rather than altitude
[10:34] <gb73d> Hi what do I need to put into FLDIGI to upload lines to the server?
[10:34] <gb73d> pse
[10:35] <jcoxon> gb73d, do you have dl-fldigi?
[10:35] <gb73d> yes
[10:35] <jcoxon> open it up in HAB mode
[10:35] <mattltm> http://ukhas.org.uk/guides:tracking_guide
[10:35] <mattltm> may help.
[10:35] <gb73d> tnx
[10:35] <mattltm> The guide sorted me out yesterday :)
[10:35] <jcoxon> need to update that for the new version
[10:36] <mattltm> A better one - http://projecthorus.org/?page_id=336
[10:37] <mattltm> Urm, whe i say better, i mean "an alternative" :)
[10:37] <jcoxon> uh hu
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[10:40] <mattltm> I thouhgt there was an updated guide on UKHAS. Im sure I found it yesterday.
[10:41] <jcoxon> hmmm all the pics have gone
[10:41] <jcoxon> something is wrong with the wiki it seems
[10:41] <jcoxon> ping jonsowman, Randomskk, DanielRichman
[10:41] <mattltm> Strange :(
[10:41] <jcoxon> do you see pics?
[10:41] <DanielRichman> jcoxon: hello
[10:41] <DanielRichman> ah. let me have a look
[10:42] <G3VZV> morning all - do we have a launch this morning?
[10:42] <mattltm> I get the older version images but the new ones have gone.
[10:42] <jcoxon> G3VZV, yup
[10:43] <jcoxon> G3VZV, they were on their way out to the launch site
[10:43] <G3VZV> tnxs
[10:43] <jcoxon> might be a little late launching though
[10:43] <jcoxon> (normally is)
[10:43] <mattltm> I thinkthe last update was for 11:30
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[10:47] <DanielRichman> mmk webserver restarted
[10:47] <DanielRichman> jcoxon: seems to work now
[10:47] <jcoxon> DanielRichman, thanks, yeah
[10:47] <jcoxon> any ideas what went wrong?
[10:48] <DanielRichman> nope.
[10:48] <jcoxon> oh well
[10:49] <gb73d> is this HORUS or Hadie2 ?
[10:50] <mattltm> Hadie2
[10:50] <gb73d> ok ty
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[11:04] <gb73d> I believe I am ready here, bit of a long shot down here but who knows ! standing by good luck
[11:06] <GW8RAK> gb73d, where are you?
[11:06] <mattltm> I think you have a better chance than me! Im furthest south out of everyone.
[11:07] <gb73d> M1ELK
[11:07] <gb73d> 4m s Reading
[11:09] <mattltm> Ohh - I think its between you and me. Be interesting to find out if you recive anything.
[11:09] <gb73d> my 433 mhz gp lost a leg when I tried to bend it , have stuck w the UHF airband version for this
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[11:10] <mattltm> I have a 14 element homebrew yagi on the roof but am about 1/2 down the south side of a hill.
[11:10] <mattltm> http://www.mattltm.co.uk/2010/05/25/12-element-yagi-for-70cm/
[11:11] <GW8RAK> Looks good
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[11:11] <mattltm> works great for SSB on 70cm :)
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[11:13] <Upu> theres more and more people doing this every launch :) Map looks good
[11:15] <mattltm> Getting a bit crowded :)
[11:18] <G3VZV> Pls excuse my two entries on the map - I am trying to run the IC910 in parallel with a new FUNcube SDR dongle receiver - see www.funcubedongle.com
[11:18] <jcoxon> G3VZV, that'll be very interesting - those funcubes look amazing
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[11:22] <jcoxon> is anyone running the latest version of dl-fldigi and has their rig set up to be control over CAT?
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[11:22] <Laurenceb_> im using xmlrpc
[11:23] <jcoxon> Laurenceb_, its more i wanted people to try out hte new freq tracking feature
[11:23] <jcoxon> probably best to be tested on a normal radio :-
[11:23] <jcoxon> [
[11:23] <Laurenceb_> ah
[11:25] <M0DTS_Rob> Ah i will connect cat and try it...
[11:25] <m1x10> scadinavian gods: thor and?
[11:25] <mattltm> I can test it with my FT-857 over cat if you tell me how to set it up.
[11:25] <jcoxon> well you need to setup rig control in dl-fldigi
[11:26] <jcoxon> then if you go to the dl-fldigi menu and select configure in the enable tab you can turn on freq. tracking
[11:26] <Upu> I got a cable for that might try it some time
[11:26] <jcoxon> basically if the signal drifts off teh waterfall it'll retune the radio
[11:26] <mattltm> so config > rig control > tick "Use RigCAT
[11:27] <jcoxon> yeah but you'll also need to select your radio
[11:27] <mattltm> how? Rig desc file?
[11:30] <Darkside> jcoxon: oh nice
[11:30] <Darkside> jcoxon: also can someone PLEASE implement multithreaded server stuff on fldigi
[11:30] <Darkside> so you can have multiple clients connected to onedl-fldigi, getting data from it
[11:31] <Darkside> we need that in one of our chase cars, where we have 2 machines, one up front and one in the back, which could both make use of the data from dl-fldigi
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[11:32] <fsphil|m> hi guys
[11:33] <fsphil|m> balloon is being filled now
[11:33] <fsphil|m> late as usual :)
[11:33] <Laurenceb_> cool
[11:33] <MrCraig> :-)
[11:33] <gb73d> matt your homebrew yagi looks well made good job
[11:33] Action: Laurenceb_ is still trying to make version 5 sdr firmware behave
[11:33] <Laurenceb_> stupid python Popen
[11:36] <Laurenceb_> how can i read the stdout of a subprocess thats still running
[11:36] <MrCraig> tracking url anyone pls?
[11:36] <Laurenceb_> so read any new stdout
[11:36] <Upu> http://spacenear.us/tracker/
[11:36] <MrCraig> ty
[11:36] <mattltm> Thanks. Very easy to do. And I just love folded dipoles :)
[11:36] <mattltm> Next project will be a 4 folded stack for 70cm
[11:41] <mattltm> jcoxon - I hev got the rigCAT desc file, set to use rigCAT and set to the correct com port.
[11:41] <mattltm> Is there a way to test if it's working?
[11:43] <gb73d> i would have a long yagi matt but i have no space here, stuck with omni loft antennas for now
[11:44] <mattltm> My homebrew worked well in the loft before I put it on the roof.
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[11:49] <mattltm> Looks like I have the CAT control working :)
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[11:53] <fsphil|m> balloon is filled, trying everything together
[11:53] <fsphil|m> gorgeous day there
[11:53] <fsphil|m> here
[11:53] <gb73d> great
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[11:56] <gb73d> im getting a ultra short telem frame every 48 sec from my new wx stn on 433.900 is causeing a spike but s=hud be ok
[11:56] <Laurenceb_> spacenear not loading
[11:57] <Laurenceb_> well, not properly, just the banner here
[11:57] <Randomskk> working her
[11:57] <Randomskk> +e
[11:57] <M0DTS_Rob> rig control with fldigi on my ic706MKIIG not working above 99MHz any ideas?
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[11:58] <fsphil|m> payload is on, waiting on lock
[11:58] <fsphil|m> got luck .. ooh that was quick
[11:59] <fsphil|m> lock
[11:59] <fsphil|m> even
[11:59] <GW8RAK> Good luck fsphil/m
[11:59] <fsphil|m> though luck is good too
[11:59] <Randomskk> wish I had my yagi with me :| good luck with the launch anyway, though
[11:59] <SpikeUK> Good luck from G8IPN also
[12:00] <Laurenceb_> spacenear working now
[12:00] <Laurenceb_> good luck
[12:00] <mattltm> Good luck!
[12:00] <davejay> Good luck from down here in Essex
[12:01] <Upu> wonder if this is going to get the balloon speed record ? :)
[12:02] <Darkside> speed record?
[12:02] <Upu> well given the winds this one is going to be moving quite quickly
[12:02] <Upu> I don't know if there is a speed record btw :)
[12:02] <Darkside> how quick is quick?
[12:02] <Darkside> :P
[12:03] <Darkside> i think i've seen 120kph on some horus balloons
[12:03] <Upu> 100mph I think fsphil said
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[12:03] <Darkside> jeez
[12:03] <Upu> 100 something
[12:03] <Upu> maybe 100km
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[12:04] <Darkside> ooh whats this - live images?
[12:04] <m1x10> good luck
[12:05] <Randomskk> Darkside: yup, 300 baud RTTY transmitting (digital) JPEGs
[12:05] <Darkside> oh ool
[12:05] <Darkside> cool
[12:05] <m1x10> cool
[12:05] <Darkside> we're hoping to do ATV sometime soon :P
[12:05] <Darkside> not much showing on the live video atm tho :P
[12:06] <Darkside> i guess the receiver is too far away
[12:06] <fsphil|m> not long now
[12:07] <Darkside> cool
[12:07] <Darkside> im settling down with a an of pringles, ready to watch :P
[12:08] <Darkside> Randomskk: how many seconds per picture?
[12:08] <Randomskk> many
[12:08] <Darkside> lol
[12:08] <Randomskk> also the pictures are quite small
[12:10] <Darkside> so it takes a picture, and squirts it out?
[12:10] <Darkside> then takes another picture?
[12:10] <mattltm> 1 image every 5 mins i think?
[12:10] <Randomskk> Darkside: yes. or maybe it takes many and stores them locally then sends out the latest, not sure. but that kind of thing.
[12:10] <Darkside> ok
[12:10] <Darkside> wow 5 min..
[12:11] <mattltm> http://ukhas.org.uk/projects:hadie
[12:11] <mattltm> tx takes between 2 - 5 mins per image
[12:12] <Darkside> fsphil|m: who is SG?
[12:12] <Darkside> C2 SG
[12:17] <Laurenceb_> http://stackoverflow.com/questions/375427/non-blocking-read-on-a-stream-in-python
[12:17] <gb73d> come on climb up !
[12:17] <Laurenceb_> ^me is trying to get that to work
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[12:17] <Laurenceb_> try: input = sys.stdin.readline() except: continue
[12:18] <jcoxon> gb73d, soon
[12:18] <Laurenceb_> what exactly is that doing? continue... continues?
[12:18] <jcoxon> its off
[12:18] <fsphil|m> it's up!
[12:18] <Upu> yay
[12:18] <Laurenceb_> cool
[12:18] <Upu> party time :)
[12:18] <Upu> you have more recieving stations than NASA
[12:19] <jcoxon> fsphil|m, do you get telem in between image packets
[12:19] <mattltm> lol
[12:19] <jcoxon> ?
[12:19] <SpikeUK> Good luck Hadie:2
[12:19] <fsphil|m> yesa
[12:19] <DanielRichman> Laurenceb_: continue aborts the current loop of the while block and starts a new one
[12:19] <Laurenceb_> ah i see
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[12:19] <DanielRichman> i.e., skips over the hanlde_input line and just starts again
[12:20] <GW8RAK> The predicted landing site is moving east rather quickly.
[12:20] <DanielRichman> continue can be used in the same way as break
[12:20] <Laurenceb_> DanielRichman: why are they setting input =
[12:20] <Laurenceb_> istn input the input function
[12:21] <DanielRichman> input is a variable; sys.stdin.readline() will return a string, which is stored in input
[12:21] <DanielRichman> and that string is then passed to handleInput
[12:21] <Laurenceb_> ah didnt know you could do that with keywords
[12:21] <Laurenceb_> ill call it input_ to be less confusing
[12:21] <DanielRichman> oh right yeah the builtin input() can just be overridden
[12:21] <mattltm> on the tracker, green circle is the signal footprint?
[12:21] <DanielRichman> also, note that it would be "better" to explcitly catch the timeout or EAGAIN or nonblocking error, rather than just except absolutely everything
[12:22] <Laurenceb_> DanielRichman: do you think that will work with readlines?
[12:22] <Laurenceb_> rather than readline
[12:22] <DanielRichman> if the file doesn't exist, or is deleted, or whatever, the program will go 100% cpu infinite loop
[12:22] <jcoxon> GW8RAK, its a little early to follow the predictor
[12:22] <DanielRichman> Laurenceb_: I don't know
[12:22] Action: Laurenceb_ tries it
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[12:23] <muf> hi
[12:23] <jcoxon> hi muf
[12:23] <GW8RAK> I realise that, but it's interesting that there was such a big change with just oneor two data points
[12:24] <SpikeUK> mattltm Think it indicates the ground area where it's 5deg or more above the horizon
[12:24] <mattltm> Ah! green is the 5deg and blue is the horizon.
[12:24] <mattltm> Thanks Spike
[12:24] <SpikeUK> mattltm NP
[12:25] <fsphil|m> still see it, just about
[12:25] <M0WOJ> Good luck trying to retrieve the payload with current predictions
[12:26] <fsphil|m> lol, yea I don't have too much hope
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[12:27] <MrCraig> based on current speed, the overshoot could still be quite an inaccurate prediction.
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[12:28] <fsphil|m> signals a bit choppy
[12:28] <Darkside> not long until the first aerial image :D
[12:28] <Upu> yikes the sea
[12:29] <M0DTS_Rob> how long between images?
[12:29] <fsphil|m> depends on the complexity of the image, less than 5 minutes
[12:29] <M0DTS_Rob> ok
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[12:31] <jonsowman> hi all
[12:31] <jonsowman> jcoxon: pinged earlier?
[12:31] <jcoxon> jonsowman, fixed no worries
[12:31] <jonsowman> righto :)
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[12:32] <jcoxon> no image packets for a bit
[12:33] <fsphil|m> yep
[12:33] <fsphil|m> still working, isngla
[12:33] <fsphil|m> signals a bit shoppy
[12:33] <fsphil|m> choppy
[12:34] <jonsowman> snowy launch then fsphil|m ?
[12:35] <jonsowman> oh goodness, i hope the dynamic predictor is wrong at the moment
[12:35] <Randomskk> oh god
[12:35] <mattltm> I'll get my rowing boat!
[12:35] <jcoxon> i think we are going through clouds so the ascent rate drops a bit
[12:35] <jcoxon> so the perdictor will predict further
[12:35] <fsphil|m> no clouds
[12:35] <jcoxon> then doooom!
[12:35] <jcoxon> hehe
[12:35] <jcoxon> it'll be fine
[12:36] <jonsowman> haha yeah... coxon kilometer or something? :P
[12:36] <jcoxon> we are passed that
[12:36] <SpikeUK> "trust me, I'm a Doctor"? ;-)
[12:37] <jonsowman> everything will be fine then
[12:37] <Darkside> jcoxon: ever played with the radiometrix VHF modules?
[12:37] <Darkside> i've ordered a 100mW 151.7MHz module
[12:38] <Darkside> hopefully it will work like the UHF modules
[12:38] <m1x10> i have the 144.8 one
[12:38] <jcoxon> Darkside, never have - not allowed for our balloons :-(
[12:38] <Darkside> heh
[12:38] <m1x10> works in great distanaces
[12:39] <Darkside> well i figured i'd give the VHF one a go
[12:39] <mattltm> is 2M allowed for HAB?
[12:39] <Darkside> that way juxta doesn't have to change his module
[12:39] <Darkside> mattltm: in australia, anything is allowed :P
[12:39] <jcoxon> mattltm, not in teh UK
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[12:39] <Darkside> hell, i'd do 5W UHF off a balloon, if it didn't require so much battery power
[12:39] <mattltm> lol - I do love Aus :)
[12:39] <Randomskk> the dynamic predictor doesn't appear to be changing
[12:40] <Randomskk> that would be a ridiculous flight
[12:40] <mattltm> so UK only 70cm?
[12:40] <Darkside> jcoxon: so yeah, i guess i'll have to hook the module up to an analyser and work out what the shift is for different voltages
[12:40] <jcoxon> mattltm, not even that
[12:40] <SpikeUK> Randomskk - is for me!
[12:40] <Randomskk> mattltm: 10mW at 433 to 434MHz, one channel
[12:40] <Randomskk> SpikeUK: I mean, it's changing in little bits
[12:40] <Randomskk> but not in the main detail
[12:40] <jcoxon> 868 500mW as well
[12:41] <Randomskk> true, and there are a few others besides
[12:41] <jcoxon> its got some temp inversions to go through which will change it as well
[12:41] <mattltm> so its LPD 443 or SRD 868 only for telem?
[12:41] <Randomskk> essentially
[12:41] <mattltm> offfp 433
[12:41] <jcoxon> hope G4LIO is listening :-)
[12:41] <mattltm> Nice airborne image
[12:41] <jonsowman> mattltm: any of the license free channels really
[12:42] <mattltm> Oh, ok. So no special HAM allocation then?
[12:42] <jonsowman> no
[12:42] <Darkside> you can't jump in the air while transmitting in the UK
[12:42] <Darkside> (on the amateur bands anyway)
[12:42] <jonsowman> 434 is convenient in terms of free space path loss, antenna sizes, ERP allowance
[12:43] <jcoxon> mattltm, the whole point is that we aren't transmitting as amateurs
[12:43] <SpikeUK> Randomskk Oh right! Must be getting more accurate?
[12:43] <jcoxon> we are in licence-exempt zone
[12:43] <mattltm> So it allows anyone to take part. I see :)
[12:43] <Darkside> heh jcoxon - we are the exact opposite
[12:43] <jcoxon> well the amateur licence doesn't allow airborne use
[12:43] <Darkside> we run amateur stuff in our balloons - next flight might have an APRS digipeater on it
[12:44] <jcoxon> not necessarily a bad thing - dl-fldigi + tracker grew out of it
[12:44] <mattltm> Yes. Very cool. I like inclusive projects
[12:44] <jcoxon> and we have pushed the ability of 10mW
[12:45] <jonsowman> record is 555km or something at the moment is it not?
[12:45] <jcoxon> yeah
[12:45] <jonsowman> :)
[12:45] <Randomskk> it is kinda annoying though. there's no decent reason to not allow hams to transmit airborne except from WWII
[12:46] <Randomskk> would mean you could do data a lot faster than 300 baud
[12:46] <jcoxon> it ain't going to change
[12:46] <jcoxon> they have made that clear
[12:46] <Darkside> move to australia
[12:46] <Darkside> :P
[12:47] <jonsowman> that is an option I suppose
[12:47] <jonsowman> would mean a bit of a commute to lecures
[12:47] <jonsowman> *lectures
[12:47] <Darkside> haha
[12:47] <fsphil|m> good signal here atm
[12:47] <fsphil|m> full images coming through
[12:47] <G3VZV> nice piccies
[12:47] <MrCraig> yeah live pics are cool
[12:48] <jonsowman> fsphil|m: pictures looking great!
[12:48] <jonsowman> predictor looks a bit better now too :)
[12:48] <fsphil|m> my home radio isn't hearing anything
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[12:48] <fsphil|m> hmmpf
[12:48] <Darkside> is that the balloon?
[12:48] <fsphil|m> the sun
[12:48] <Darkside> lol
[12:49] <GW8RAK> Once again, I can see traces on the waterfall before the balloon is over the horizon
[12:50] <Randomskk> if only we were using qpsk right :P
[12:50] <Randomskk> then you'd get data before traces on the waterfall :P
[12:50] <jonsowman> in theory
[12:51] <jonsowman> still want to try putting together a bpsk transmitter for a hab
[12:51] <GW8RAK> But when you can't hear anything and the scree is showing data, it's a bit spooky
[12:51] <GW8RAK> screen
[12:52] <Darkside> 32km expected burst - cool
[12:52] <jcoxon> Darkside, oh thats hardcoded
[12:52] <G3VZV> wots the freqeuncy presently?
[12:52] <Darkside> heh
[12:52] <Randomskk> jonsowman: I was thinking about that, you know ed's android app?
[12:52] <fsphil|m> my radios on 434.075
[12:52] <Randomskk> it was accidentally phase shifting
[12:52] <jonsowman> Randomskk: oh?
[12:52] <jonsowman> awesome
[12:52] <Randomskk> but like, you could make it intentional
[12:53] <Darkside> Randomskk: android app?
[12:53] <jonsowman> indeed... we should have a play with that
[12:53] <jcoxon> anyone else getting any reception?
[12:53] <Randomskk> yea
[12:53] <Randomskk> could probably whip up a prototype in python tbh
[12:53] <jcoxon> Darkside, android flight 'puter
[12:53] <Darkside> oh
[12:53] <Darkside> heh
[12:53] <Randomskk> ^ the above statement is true for all values, that said
[12:53] <Darkside> i want to fly a beagleboard
[12:53] <Darkside> the abstraction level goes up quite a few notches when you fly something that can run linux :P
[12:53] <Darkside> i could write all my code in python!
[12:54] <jcoxon> i used to fly gumstixs Darkside
[12:54] <jcoxon> all written in perl
[12:54] <Darkside> nice
[12:54] <Darkside> haha
[12:54] <jcoxon> to expensive to lose
[12:54] <Darkside> well we haven't lost a payload yet
[12:54] <jcoxon> i still have a pegasus payload sitting on my shelf
[12:54] <Darkside> even when it landed in the sea, we still got it back
[12:54] <jcoxon> its the sstv one - just needs new batteries
[12:55] <m1x10> i chose randomly LF85CV
[12:55] <m1x10> oops
[12:55] <Darkside> jcoxon: i guess it helps for us that we have so much landmass around us
[12:55] <Darkside> i.e. its not going to overshoot and land in a sea very often
[12:55] <Darkside> it just might land far inland
[12:55] <jcoxon> Darkside, oh yes
[12:55] <jcoxon> you are very lucky
[12:55] <Laurenceb_> DanielRichman: can you offer any advice on this - im try to read the stdout of a subprocess in python
[12:55] <Laurenceb_> its blocking
[12:56] <jcoxon> and with good radio laws and once you're notam is place easy to launch
[12:56] <Darkside> means we can do some insane flights - need to try for an altitude record sometime i recion
[12:56] <jcoxon> yeah
[12:56] <DanielRichman> Laurenceb_: and you want to do something else while it's blocking?
[12:56] <Laurenceb_> no
[12:56] <DanielRichman> it's just blocking forever?
[12:56] <Laurenceb_> yes
[12:56] <Darkside> whos the dl-fldigi dev here?
[12:56] <DanielRichman> what is the output of the subprocess? ascii?
[12:56] <Laurenceb_> i want to read the lines it spits out
[12:56] <Laurenceb_> whilst its still running
[12:56] <Laurenceb_> yes
[12:56] <Laurenceb_> ascii csv
[12:57] <jcoxon> Darkside, me, fsphil and DanielRichman
[12:57] <Darkside> jcoxon: we'd like to have multiple TCP connections into dl-fldigi
[12:57] <DanielRichman> ok. I wonder how the file/pipe is buffered.
[12:57] <jcoxon> we'd like a lot of things :-p
[12:57] Action: Laurenceb_ needs to fix this before balloon comes in range
[12:57] <Darkside> so multiple computers can take the output from one dl-dlfigi
[12:57] <DanielRichman> Laurenceb_: how are you opening the pipe?
[12:57] <Darkside> we actually need this in one of the chase cars
[12:57] <Laurenceb_> subprocess.Popen(['./dump', sys.argv[1]], shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
[12:57] <jcoxon> Darkside, well you could change the output server to a local server
[12:57] <Darkside> at the moment only one computer can access the output from dl-fldigi
[12:57] <Darkside> yeah, i could do that
[12:58] <jcoxon> then write something to forward it
[12:58] <Darkside> would be nice to just have dl-fldigi's server multithreaded :P
[12:58] <jcoxon> but also repeat it
[12:58] <MrCraig> Wouldn't you fork/thread a blocking process anyway, if you want to do something else or not - so your exe becomes event driven and doesn't chew OS resource?
[12:58] <Darkside> jcoxon: well i can probably write a python script that connects to dl-fldigi and has a multithreaded listening server
[12:59] <jcoxon> more the other way round
[12:59] <DanielRichman> Laurenceb_: and then how are you reading data from it?
[12:59] <jcoxon> so have dl-fldigi connect to it
[12:59] <Darkside> nah
[12:59] <Darkside> we connect to fldigi's tcp server thingo
[12:59] <Darkside> the one thats already there
[12:59] <jcoxon> what tcp server?
[12:59] <Darkside> the one that outputs raw data
[12:59] <M0JCU> xml-rpc
[12:59] <Laurenceb_> input_ = bp.stdout.readlines()
[13:00] <Darkside> M0JCU: no, its not xml
[13:00] <Randomskk> Darkside: sounds like a use case for habitat >.>
[13:00] <Darkside> it just spits out whatever you see on teh received data window via a tcp connection
[13:00] <DanielRichman> Darkside: if you mean the thing that sends data to the listener at robertharrison.org, dl-fldigi makes a HTTP POST request ?
[13:00] <Darkside> and you can send in lines, and it will transmit them
[13:00] <Darkside> DanielRichman: no
[13:00] <M0JCU> didn't realise it had 2 http ports
[13:00] <Darkside> ill find out the port it uses, hang on
[13:00] <jcoxon> Darkside, thats xml-rpc
[13:00] <DanielRichman> Laurenceb_: what happens if you add bufsize=1 to the popen function?
[13:00] <Darkside> jcoxon: but theres no xml?
[13:01] <Laurenceb_> DanielRichman: wont that block if the buffer fills?
[13:01] <DanielRichman> Laurenceb_: bufsize=1 means line buffered, apparently
[13:01] <Darkside> port 7322
[13:01] <DanielRichman> i.e., it blocks until it gets a \n
[13:01] <Laurenceb_> oh weird
[13:01] <jcoxon> http://www.w1hkj.com/FldigiHelp-3.12/xmlrpc-control.html
[13:02] <DanielRichman> Laurenceb_: did you write the dump program yourself/are you sure it's outputting on stderr rather than stdout or something similar?
[13:02] <Darkside> ARQ?
[13:02] <Laurenceb_> i wrote it yes
[13:02] <Laurenceb_> and ive checked, its spitting out ascii csv
[13:02] <Darkside> jcoxon: its the ARQ server
[13:03] <Darkside> juxta's code connects to that, and parses the data itself - that way he can still read lat/longs from lines that fail checksum
[13:03] <Darkside> seriously we need to get all this stuff in a git respoitory somewhere
[13:03] <fsphil|m> weak signal now
[13:03] <fsphil|m> but steady, very little drift
[13:04] <jcoxon> feel free to make changes
[13:04] <Darkside> jcoxon: i wouldn't know where to start... i think i'll go with my hackish python script idea
[13:04] <Darkside> since i know i can do that well enough
[13:05] <jcoxon> fair enough
[13:05] <jcoxon> currently we use dl-fldigi as a client rather than a server
[13:05] <Darkside> well we do that too
[13:05] <Darkside> but this is for in-car stuff
[13:06] <jcoxon> i'd just make a local server which repeats the data to the online server but also makes it avaliable to other things
[13:06] <Randomskk> once habitat is working you would be able to run it in the car, have fldigi upload to it, then just use its database for everything.
[13:06] <Randomskk> sadly it's not working yet >_>
[13:06] <Darkside> we plot received data onto another mapping program, called oziexplorer
[13:06] <Darkside> which has topographic maps of all the areas we go
[13:07] <Darkside> so it will plot the balloons trace, and if the checksum fails, it puts a distinctive marker - its up to the operator to decide if its a valid point or not
[13:07] <Darkside> its very useful on landing - we can make a decision as to what road to take to get to GZ in time for landing
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[13:09] <Laurenceb_> havent had any data for a while?
[13:09] <Laurenceb_> 12:59
[13:10] <Laurenceb_> oh its ok now.. odd
[13:10] <fsphil|m> very weak signal here
[13:10] <mattltm> Anyone else reciving it yet?
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[13:13] <M0DTS_Rob> just starting to come in here now
[13:13] <fsphil|m> over 10km
[13:14] <fsphil|m> just about decoding some text
[13:14] <fsphil|m> hmpf
[13:15] <fsphil|m> wonder what's going on
[13:17] <fsphil|m> 11.1km
[13:18] <jcoxon> its probably just hit the JS
[13:18] <Darkside> js?
[13:18] <Darkside> oh
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[13:19] <jcoxon> fsphil|m, antenna issues?
[13:20] <fsphil|m> possibly
[13:20] <Upu> going to set off and set up in 30 mins
[13:20] <jcoxon> perhaps we need some big yagi's pointed at it
[13:20] <fsphil|m> 11.8km
[13:20] <fsphil|m> I have big yagis :)
[13:21] <Upu> whats the green circle round it ?
[13:21] <jcoxon> not getting through to the server though ?
[13:21] <fsphil|m> not receiving total strings
[13:21] <M0DTS_Rob> 2x25el pointed at it here and one seperate with elevation!
[13:21] <jcoxon> hehe
[13:21] <jcoxon> that might work
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[13:22] <jonsowman> Upu: 5 degree horizon
[13:22] <fsphil|m> it should be over the irish sea by now
[13:22] <M0DTS_Rob> exact frequency?
[13:23] <fsphil|m> my radio is tuned to 434.075 exact
[13:23] <fsphil|m> it's about 1700hz up from that
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[13:23] <fsphil|m> almost sounds like its burst
[13:23] <M0DTS_Rob> ok, i thought i heard it on 434.076 but maybe something else.
[13:24] <GW8RAK> I've got weak signals about there fsphil but only intermittently
[13:24] <fsphil|m> same here GW8RAK
[13:27] <Upu> think I should be able to pick it up ?
[13:27] <fsphil|m> 13.5km .. I think
[13:28] <Upu> I might wait a little
[13:28] <jcoxon> fsphil|m, coords?
[13:29] <fsphil|m> nothing clear enough
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[13:29] <fsphil|m> 54.420555,-5.762223
[13:31] <jonsowman> bbiab, good luck fsphil|m :)
[13:31] <fsphil|m> thanks jonsowman
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[13:34] <fsphil|m> big spin
[13:35] <Laurenceb_> IOError: [Errno 11] Resource temporarily unavailable
[13:36] <Upu> So really until the 5' horizon moves closer to me I probably won't be able to recieve ?
[13:36] <fsphil|m> the map is out of date
[13:36] <fsphil|m> radio is still tuned to 434.075
[13:36] <fsphil|m> signal hasn't drifted much at all
[13:36] <fsphil|m> just too weak to decode
[13:36] <fsphil|m> aarg
[13:37] <Upu> that an aerial issue ?
[13:37] <M0DTS_Rob> small bursts here
[13:37] <fsphil|m> yea I think the aerial on the payload has been damaged
[13:37] <fsphil|m> it hit some really strong winds on the way up
[13:39] <gb73d> oh well good test of the set up n e how
[13:39] <M0DTS_Rob> yes some good images earlier.
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[13:44] <fsphil|m> signal getting any stronger for you guys?
[13:44] <GW8RAK> Good luck with the rest of the flight fsphil and hopefully there'll be telemetry on the descent. Got to go out now.
[13:44] <fsphil|m> I can still hear it but haven't decoded any meaningful text in a while
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[13:44] <fsphil|m> cya GW8RAK, thanks for trying
[13:45] <Laurenceb_> odd.. i have no data since 13:09 on spacenear
[13:46] <fsphil|m> there hasn't been anything uploaded
[13:46] <Laurenceb_> ah :(
[13:46] <Laurenceb_> right im heading out into garden with sdr
[13:46] <Laurenceb_> reverted to v4 firmware
[13:46] <Laurenceb_> as i cant fix the pythonissue
[13:47] <Laurenceb_> whats the frequency?
[13:48] <fsphil|m> 434.075 + 1700hz
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[13:48] <fsphil|m> but it's very weak
[13:53] <fsphil|m> still got the signal, still too weak
[13:55] <fsphil|m> signal is just about on the waterfall with my receiver at home
[13:55] <fsphil|m> the vertical
[13:56] <fsphil|m> packing up here
[13:57] <Laurenceb_> it should be north of me here by now
[13:57] Action: Laurenceb_ rage at python
[13:57] <fsphil|m> yea, I think it should be near or over land by now
[13:57] <Laurenceb_> someone actually seriously suggested using a file :(
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[14:01] <GM4JTJ> At last lsb .080.... ENZMEROVTB A ET NDAGL888485.3.50"7/,5 SEXRWCLUW
[14:04] <fsphil|m> ooh
[14:04] <fsphil|m> all upper case?
[14:04] <fsphil|m> are you in 8-bit mode?
[14:04] <Upu> Hadie USB or LSB ?
[14:05] <fsphil|m> USB
[14:05] <fsphil|m> frequency was increasing slightly, 434.075 + 1800hz
[14:06] <fsphil|m> driving home now, will try with the yagis there
[14:06] <fsphil|m> should be close to G4ILO
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[14:09] <DanielRichman> Laurenceb_: can you send the sauce code to both dump and the python?
[14:09] <Laurenceb_> im in garden atm
[14:09] <Laurenceb_> *sigh*
[14:09] <Laurenceb_> retune is broken now
[14:09] <Laurenceb_> going to have to try and fully revert to version 4
[14:11] <fsphil|m> anyone even hearing it?
[14:13] <gb73d> bbl cheers all
[14:13] Action: Laurenceb_ is reflashing sdr atm
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[14:16] <Laurenceb_> whats the actual carrier at?
[14:17] <M0JCU> USB=no carrier. Based on the last report, frequencies should be 434.255+/-175Hz
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[14:17] <MI6VIM> pesky mobile internet :)
[14:18] <MI6VIM> any reception?
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[14:20] <M0DTS_Rob> signal improving but still no decode
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[14:21] <Laurenceb_> i have a carrier near there
[14:21] <Laurenceb_> what are you on?
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[14:21] <Laurenceb_> frequency?
[14:22] <fsphil|m> I can't hear it anymore
[14:22] <Darkside> :(
[14:24] <Laurenceb_> anyone got it?
[14:24] <Laurenceb_> M0DTS_Rob: last freq?
[14:25] <Laurenceb_> :(
[14:26] <M0DTS_Rob> 434.076 centre of tones ==1200hz on waterfall
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[14:27] <M0DTS_Rob> hearing it audibly now but no decode yet
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[14:28] <jcoxon> any progress
[14:28] <jcoxon> ?
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[14:30] <fsphil> home now
[14:30] <fsphil> it should be coming down soon
[14:31] <M0DTS_Rob> 14:29:25 i think 54.451990 -4.265905, 28130
[14:31] <fsphil> oooh cool
[14:32] <m1x10> what happened?
[14:32] <fsphil> just over the isle of man
[14:32] <fsphil> m1x10, antenna troubles - the payload signal is very weak
[14:32] <M0DTS_Rob> $$h14:32:02,5´.462890,-4.129251,:9033,1,10,?*5C9$$hadie,9y2,1:32>02,54.462990,-4.929251,2y033,1,10,?*0Aw$$h`déeή6.¦vèF4B7¾o/Q
[14:32] <m1x10> lost it?
[14:32] <fsphil> sorta, rob's getting the signal now
[14:33] <fsphil> it's too far for my little yagis
[14:33] <Upu> is it worth me going up and having a look ?
[14:33] <Upu> where abouts is it ?
[14:33] <fsphil> over the isle of man
[14:33] <fsphil> if that last position was accurate
[14:33] <fsphil> 28km, still got a bit before burst hopefully
[14:33] <m1x10> thats in the water
[14:34] <fsphil> maybe
[14:34] <Upu> ok I'll go back online in 10
[14:34] <M0DTS_Rob> hadie,1006,14:f,54.474680,-4.025228,29475,1,
[14:34] <jonsowman> how are things going?
[14:35] <fsphil> I think it's gonna reach dry land
[14:35] <m1x10> I hope so
[14:35] <m1x10> Did you use the jpeg cam?
[14:35] <fsphil> jonsowman, signal is very weak, likely damage to the antenna
[14:35] <fsphil> only rob's receiving anything atm
[14:36] <jonsowman> ah right, not uploading to spacenear?
[14:36] <fsphil> m1x10, yep -- only got a few images before the signal went: http://www.sanslogic.co.uk/ssdv/live.php
[14:36] <M0DTS_Rob> $$hadie,1065,04:36:09,54.48091%3n878373,30217,1,10,?&DC32
[14:36] <fsphil> not complete strings yet I don't think
[14:36] <fsphil> 30k
[14:36] <fsphil> sweet!
[14:36] <jonsowman> righto
[14:36] <jonsowman> oo, nice
[14:36] <fsphil> it's higher than cirrus got
[14:37] <fsphil> M0DTS_Rob, you should be able to decode image data soon -- are you using the latest dl-fidigi?
[14:37] <M0DTS_Rob> yes i'm all set
[14:39] <Laurenceb_> whats the frequency?
[14:39] Action: Laurenceb_ cant see anything yet
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[14:40] <Laurenceb_> arg processor keeps maxing out now
[14:40] <Laurenceb_> this is a disaster
[14:42] <M0DTS_Rob> just inland ~egremont south of whitehaven.
[14:42] <M0DTS_Rob> $$ha@ie,106<l14:42:32,54492648,-3.473870,3115,1,10,?76ED
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[14:44] <fsphil> now, will it burst before it hits the north sea
[14:45] <fsphil> M0DTS_Rob, how's the frequency shift -- does it look narrower than 350hz?
[14:45] <MrCraig> Where is she? I'm still seeing Lough Neagh on google maps, that's where she was an hour ago?
[14:46] <fsphil> just made the english coast
[14:46] <MrCraig> :-)
[14:46] <fsphil> hopefully the strings will be uploading to the tracker soon
[14:46] <MrCraig> cool thanks
[14:46] <fsphil> so, plan for next time: better antenna
[14:46] <jonsowman> :D
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[14:48] <M0DTS_Rob> shift ~320
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[14:50] <fsphil> on the plus side, at least I know the gps mode set code works
[14:50] <Laurenceb_> M0DTS_Rob: last freq?
[14:50] <UpuMobile> last know location so I can get a bearing pls ?
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[14:51] <M0DTS_Rob> 434.076
[14:51] <M0DTS_Rob> no recent strings... sounds like it's burst......
[14:52] <Laurenceb_> bah
[14:52] <UpuMobile> i'll go swing antenna round
[14:52] <Laurenceb_> looks like me issue is the antenna
[14:52] <Laurenceb_> needs a few more pF tuning capacitance
[14:53] <Laurenceb_> good luck with recovery
[14:54] <M0DTS_Rob> $$hadie,1180,1:52:20,54.498205< .80Ü0x,"Ã4FZ¾l
[14:54] <M0DTS_Rob> $$hadie,7,42f3}YÓç"1,6s47,,,:0 "# Ìg940,µ-2.791158,266%8,1,7:l1NEdi-118914:52#41400l-2.790506l26228¬1,10,?*EF69
[14:54] <M0DTS_Rob> hadie,1232,14:54:20,54.5004u8,-2.732365,23442,1,10,?*62B5
[14:54] <fsphil> 26km, yea
[14:54] <fsphil> she's goin' down!
[14:55] <Laurenceb_> over land yet?
[14:55] <fsphil> just at the right edge of the lake district
[14:55] <fsphil> it's gonna hit solid ground
[14:55] <Laurenceb_> cool, but might involve some hill climbing
[14:55] <Laurenceb_> hopefully not sellafield
[14:56] <M0DTS_Rob> hadie,126#,14:55:29,5$.02026,-2.70307¶A;¹Rm²ie,1:v,14:
[14:56] <Laurenceb_> cya all, good luck
[14:56] <fsphil> yea looks like it's going to land south of Keld
[14:58] <M0DTS_Rob> $$hadie,1315,14:5731(54.503162.652270,19292,1,10,
[14:58] <fsphil> yes!
[14:58] <fsphil> telemetry
[14:58] <M0DTS_Rob> wohoo
[14:59] <fsphil> G4FVP
[15:00] <fsphil> another
[15:00] <UpuMobile> not recieving here
[15:00] <M0DTS_Rob> another
[15:00] <fsphil> is that prediction accurate?
[15:01] <fsphil> and you just got a complete string too
[15:02] <fsphil> -13.1 m/s
[15:02] <fsphil> guess 12" parachute really isn't enough
[15:02] <UpuMobile> can hear it
[15:03] <junderwood> fsphil, it will slow down as it gets more atmopshere
[15:03] <M0DTS_Rob> 14661m now
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[15:06] <fsphil> yep, slowing down
[15:06] <m0hok> getting odd partial decodes here in io94hn..using colinear on the roof
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[15:07] <UpuMobile> getting partial strings here
[15:08] <fsphil> man I so thought I'd lost the payload
[15:08] <mattltm> Im glad it came through.
[15:08] <mattltm> Nothing recived her in Kent but thats not suprising.
[15:08] <m0hok> ive lost signal again now
[15:09] <UpuMobile> my Yagi is blowing off the roof of my car lol so windy up here
[15:09] <junderwood> fsphil, given it's coming down in the middle of the Yorkshire Dales, I'm not sure you're out of the woods yet
[15:10] <UpuMobile> hadie,1: 8s554.510028,-2>$ºµ5>~¹ã®wt~Ü.aò,-2.5S061021,1,11¬?*782¹
[15:13] <UpuMobile> ok guys my Yagi just blew off the roof so I'm calling this :)
[15:13] <fsphil> eek
[15:14] <junderwood> Upu, where are you?
[15:14] <M0DTS_Rob> drifting rapidly now
[15:14] <UpuMobile> Halifax
[15:15] <junderwood> good attempt at that range
[15:15] <UpuMobile> I got some partial strings
[15:15] <junderwood> looks like it's going to land in Swaledale
[15:15] <UpuMobile> but I think this location is great for Cambridge launches
[15:15] <UpuMobile> not so good for northern ones
[15:16] <M0DTS_Rob> $$hadie,1803,1:16;0354.463718,-2.274871,7289,1,12,?*0343
[15:16] <UpuMobile> just going to move a little brb
[15:18] <fsphil> getting near the earth now
[15:19] <fsphil> still looks likely to land on a hill
[15:20] <SpikeUK> fsphil - It's over t'Yorkshire Dales! It's all bloody hills ;-)
[15:20] <fsphil> landing site actually looks quite nice
[15:21] <junderwood> Grinton should be OK. You missed Crackpot :-)
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[15:26] <junderwood> g4fvp should be able to track it virtually to the ground
[15:26] <fsphil> looks like, he's getting great telemetry now
[15:26] <M0DTS_Rob> he's ost it now too i think ...
[15:26] <M0DTS_Rob> *lost
[15:26] <M0DTS_Rob> gone here
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[15:27] <fsphil> fantastic work rob
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[15:33] <Upu> boy that was cold
[15:34] <M0DTS_Rob> found it?
[15:34] <fsphil> I don't think it's landed yet
[15:34] <fsphil> next 10 minutes or so
[15:35] <M0DTS_Rob> was going to go out for a look but no need i think!
[15:35] <M0DTS_Rob> k
[15:35] <fsphil> that was a crazy flight
[15:39] <mattltm> Kept me interested :)
[15:39] <mattltm> Well done fsphill
[15:39] <m1x10> how is hadie ?
[15:39] <m1x10> :)
[15:39] <fsphil> very near the ground :)
[15:42] <Upu> http://www.youtube.com/watch?v=wrgJxBWfBMA
[15:42] <Upu> I think I need a sturdier tripod :)
[15:43] <fsphil> wow that's breezy
[15:43] <fsphil> everything was so calm at the launch site
[15:45] <jcoxon> fsphil, antenna issues then you reckon?
[15:45] <fsphil> I think so, I can't of anything else that'd make the signal so weak
[15:45] <fsphil> the payload got battered about, the main element could have been bent or snapped off
[15:46] <fsphil> have to say I was impressed how steady the signal was
[15:47] <fsphil> all that insulation worked a reat
[15:47] <fsphil> treat
[15:47] <fsphil> or it could have been that the vreg was very near where the crystal is
[15:47] <fsphil> kept it warm
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[15:48] <Upu> so best not launch in strong winds next time ?
[15:48] <Randomskk> or make a hardcore antenna
[15:49] <fsphil> better antenna yea, something that can flex a bit
[15:49] <fsphil> but also yep, next time will be a calmer day :)
[15:50] <fsphil> I think we only used half the gas
[15:50] <MrCraig> "zera flag de interrupcao de recepcao na USART" <-- is this spanish or italian?
[15:50] <Upu> you used a T Cylinder ?
[15:50] <fsphil> Upu, yeppers
[15:50] <Upu> how long did it take to fill 1000g balloon ?
[15:50] <mattltm> looks italian to me
[15:50] <MrCraig> tks
[15:51] <Randomskk> google translate reckons Galician
[15:51] <fsphil> only about 15 minutes, and that was with us testing the ballast
[15:51] <fsphil> a lot quicker than I expected
[15:51] <Randomskk> http://translate.google.com/#auto|en|zera%20flag%20de%20interrupcao%20de%20recepcao%20na%20USART
[15:51] <Randomskk> "resets the interrupt flag in USART reception"#
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[15:52] <MrCraig> appears to be spanish - thanks.
[15:52] <Upu> cool
[15:53] <SpikeUK> quadrifilar helix antenna > http://homepages.ipact.nl/~pa1are/QHA.html
[15:53] <fsphil> anyone near the landing site?
[15:53] <Upu> notes for Ava allow 30 mins for filling and use strong antenna and no wind !
[15:53] <fsphil> yes, wind is bad :)
[15:53] <fsphil> also pack the car the night before
[15:54] <fsphil> and keep a checklist :)
[15:54] <fsphil> it should be on the ground now
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[15:56] <keng> hi room
[15:56] <fsphil> hullo keng
[15:56] <keng> i'm wondering about model simulator here - http://habhub.org/predict/
[15:57] <keng> i'm trying to create a model for 9 jan 02:00UTC at 14.941431, 102.837406
[15:57] <keng> i got this message "The server rejected the submitted form data: Server couldn't make a model from the form data"
[15:57] <fsphil> it won't work for flights in the past
[15:58] <Randomskk> indeed
[15:58] <keng> it was working for this - http://habhub.org/predict/#!/uuid=e4ca003ed83c6f041872aacb62639a64d5b4cdde
[15:58] <keng> ah.
[15:58] <keng> therefore I need to specify the future date?
[15:59] <fsphil> ideally, although that last prediction is a few day sold
[15:59] <fsphil> the data may have been cached
[15:59] <Randomskk> that prediction was already run
[15:59] <Randomskk> visiting the link just shows the previously run prediction
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[15:59] <Randomskk> you can't generate a new prediction for a date in the past
[15:59] <Randomskk> so yes, you'll need to specify the date you actually plan to release the balloon
[16:00] <keng> @Randomskk oh yeah. i got it. "search for wind data" is confused me somehow.
[16:00] <keng> that why i thought it was for a 'reference' past prediction.
[16:00] <Randomskk> yes, it could be done better. I've opened an issue on the bug tracker for it to poke jonsowman into fixing the error messages
[16:00] <Randomskk> if I was less lazy I would fix it myself >_>
[16:01] <keng> @Randomskk lol
[16:02] <keng> i'm living in thailand planning to do the first high altitude balloon flight here :)
[16:02] <Randomskk> sounds good
[16:02] <fsphil> have to say, the prediction was spot on today
[16:02] <Randomskk> have you investigated all the local laws? :P
[16:03] <keng> @Randomskk i'm working on regulations :-O
[16:04] <Randomskk> hehe
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[16:09] <keng> the law is crazy here
[16:17] <Hiena> Cops wears clownhats?
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[16:22] <Laurenceb_> hi
[16:23] <Laurenceb_> looks promising for recoevery
[16:24] <fsphil> nice spot, was worried it was going to land on one of those big hills
[16:26] <Laurenceb_> turns out my antenna wasnt tuned properly
[16:26] <fsphil> the live images code worked well too, if it hadn't been for the antenna I think it would have worked for the entire flight
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[16:26] <Laurenceb_> im going to have to disamentle it and add a 10pF cap
[16:27] <Upu> fsphil what was the final location and what accuracy is it ?
[16:27] <fsphil> prediction was for 54.3629, -1.88296
[16:27] <fsphil> when the payload was 3.7km up
[16:28] <fsphil> seemed to be drifting east a little with each string
[16:28] <Upu> hmm well lets see if someone call you
[16:28] <fsphil> I'd say it's near Stainton
[16:29] <Upu> bit to big to go looking
[16:29] <fsphil> yea, wide open space
[16:31] <m1x10> fsphil: what was max alt?
[16:31] <fsphil> m1x10, over 32km - can't be sure what exactly
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[16:32] <fsphil> max full string was at 18.6km
[16:32] <m1x10> did u have a normal cam on it?
[16:32] <fsphil> yep
[16:33] <m1x10> ok
[16:34] <fsphil> if it worked, there should be some pretty neat images on there
[16:35] <m1x10> yea
[16:35] Action: m1x10 would like to stole those images :)
[16:35] <m1x10> steal*
[16:35] <fsphil> well, if you cant find it :p
[16:35] <fsphil> -t
[16:35] <m1x10> yea haha
[16:37] <fsphil> I need a better way to control the home PC -- might use your remote control system next time jcoxon
[16:37] <fsphil> vnc over mobile internet is awful
[16:38] <Upu> RDP
[16:38] <fsphil> on linux?
[16:38] <Upu> command line
[16:38] <Upu> :)
[16:40] <fsphil> ooh, command line fldigi
[16:40] <fsphil> ascii art waterfall
[16:48] <jonsowman> yeah I will sort that predictor thing Randomskk
[16:48] <jonsowman> been meaning to do that for a while
[16:49] <Randomskk> hehe
[16:49] <Randomskk> I think I should prioritise working out how to pause time so I can do all the rest of my projects
[16:50] <jonsowman> yeah that would be nice
[16:51] <Randomskk> indeed
[16:51] <Laurenceb_> heh the too many project problem
[16:51] <mattltm> fsphil: I use logmein.works ok.
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[16:58] <jcoxon> fsphil, we can package it up sometime
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[16:58] <jcoxon> perhaps roll it into the installation file
[16:58] <fsphil> yea
[16:59] <fsphil> how are you serving the page? apache?
[16:59] <jcoxon> yeah
[17:00] <fsphil> could use something like this: http://www.gnu.org/software/libmicrohttpd/
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[17:02] <fsphil> means no extra packages -- just have a tickbox, and a port number text box
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[17:08] <m1x10> fsphil: where is the payload?
[17:09] <fsphil> in a field in yorkshire :)
[17:10] <Randomskk> is anyone attempting recovery?
[17:10] <fsphil> don't think so
[17:10] <jcoxon> fsphil, email the ukhas list to ask if anyone is nearby
[17:11] <fsphil> just writing up one now :)
[17:11] <jcoxon> also hit southgatearc
[17:11] <fsphil> gonna see if there is a local news paper too
[17:11] <jcoxon> it'll be tx'ing on the ground
[17:11] <fsphil> not for much longer
[17:11] <G0EHV> M0DTS has had a look up there with a radio, nothing heard
[17:12] <fsphil> ooh, was he near the predicted landing spot?
[17:12] <G0EHV> yes, he has tried at 2 locations in Swaledale
[17:13] <fsphil> hmm.. it either died on impact or the weak signal is muting it
[17:13] <G0EHV> what sort of power from tx?
[17:14] <fsphil> 10mw, but I think the antenna was damaged
[17:15] <fsphil> I lost the signal after it got about 30km away
[17:16] <fsphil> should have been able to track it most of the way
[17:17] <fsphil> infact M0DTS should have had no problem receiving it shortly after launch, he was able to receive the last launch from here
[17:18] <G0EHV> g4fvp had partial decode at 1528, hight 1300 metres
[17:18] <G0EHV> he lost the trace at 1536
[17:21] <fsphil> was there enough text to work out a position?
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[17:26] <G0EHV> he gave me 54.383, 2.03966 if that helps.
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[17:28] <G0EHV> i make that about 9km from predicted
[17:28] <Randomskk> 2 degrees east?
[17:28] <G0EHV> west
[17:28] <Randomskk> ah
[17:29] <Randomskk> right, that makes the difference between the middle of the sea and somewhere in the yorkshire dales :P
[17:31] <fsphil> looks to have been on course for the predicted landing spot
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[17:31] <G0EHV> thatt position was at 1528, it was still airborne until at least 1536 when g4fvp lost the signal
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[17:38] Nick change: ebfe -> eb5290
[17:39] Nick change: eb5290 -> ms7821
[17:41] <mattltm> When is the next scheduled launch?
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[17:42] <fsphil> a good bit of tracking considering the distance and bad signal
[17:42] <fsphil> brb, dinner :)
[17:43] <gb73d> am up for the next launch too, wanty to test the aor and the new fldigi
[17:45] <mattltm> Im thinking about building 3 more yagis and making a stack :)
[17:45] <mattltm> Not sure it would go on the roof though :)
[17:48] <gb73d> ona rotator ?
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[17:55] <gb73d> i reckon I wud have got it today if it dint aerial prob
[17:56] <gb73d> circle was heading my way
[17:56] <gb73d> prolly 20 mins away from copy here
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[18:04] <gb73d> suggest lash the antenna harder so it can survive being swung round like a cat
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[18:06] <mattltm> gb73d: My current 1 is on a rotator but im due to upgrade it this year to somthing that can do azimuth too.
[18:07] <MrCraig> have been in pic programming mode - has fsphil's payload been recovered?
[18:07] <gb73d> u can get anything withna steerable stack
[18:07] <gb73d> massive gain
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[18:08] <mattltm> Sure. My homebrew yagi seems to do a good job on its own so a stack would be nice to try.
[18:08] <mattltm> http://www.mattltm.co.uk/2010/05/25/12-element-yagi-for-70cm/
[18:09] <M0DTS_Rob> Sorry guys nothing heard on my trip out... nothing from Upu then?
[18:10] <gb73d> that YAGI wouldnt even fit in my loft
[18:11] <mattltm> lol. I had it it my loft for a bit. Worked very well.
[18:11] <mattltm> It's on the chimney stack now.
[18:12] <mattltm> I have been thinking about getting a SCAM 12 mast to play with as I do like to mess about with designs and climbing onto the roof has lost it's fun factor.
[18:15] <M0DTS_Rob> The furthest i went across was to near low row in the hills, main roads had 1" of snow on so did not venture to the minor roads!
[18:19] <fsphil> M0DTS_Rob, really appreciated - it looks like a fairly big empty landing spot, would be tricky to locate without the signal
[18:21] <M0DTS_Rob> I wish i had set off a bit earlier now!
[18:22] <M0DTS_Rob> If it was operating i think i would have heard it but u never know...
[18:23] <fsphil> I think I'll go back to using the bazooka dipoles
[18:23] <mattltm> What antenna did you use this time fsphil?
[18:23] <fsphil> it was a quarter wave vertical
[18:24] <fsphil> a vertical element, and four ground radials
[18:24] <mattltm> And you think there was a problem with the vertical?
[18:25] <fsphil> yea, I think it could have lost a few of the ground elements and still worked better
[18:26] <fsphil> there may have been a soldering defect too, although the signal strength was excellent for the first few minutes
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[18:26] <mattltm> Have you got any images of it?
[18:27] <fsphil> there are a few but I haven't got a copy of them yet
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[18:31] <gb73d> yeah maybe too much stress on a soldered joint in the antenna connection
[18:32] <gb73d> needs to eb mechanicallt isolated
[18:32] <gb73d> be mechanivcally
[18:32] <fsphil> I didn't test it with the meter afterwards
[18:32] <gb73d> maybe a dry joint even
[18:33] <gb73d> and it did have strong winds a low level
[18:34] <fsphil> from the sound of the signal fading, it must have been spinning an awful lot
[18:34] <fsphil> a few times I thought it was falling
[18:35] <fsphil> parachute worked well, the final descent speed was a fairly gentle 4m/s
[18:36] <gb73d> turbulence in the boundary layer
[18:36] <gb73d> hope u find and can tell what happemned
[18:36] <fsphil> me too!
[18:37] <fsphil> though otherwise I'd call it a successful flight - I'm pleased with the way most things worked
[18:37] <mattltm> I got to go and do some work now :(
[18:37] <mattltm> See you later all.
[18:37] <fsphil> eep, good luck mattltm
[18:37] <gb73d> yes yes all went well , was a bit of a challenger type disaster
[18:37] <mattltm> And well done to you fsphil..
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[18:37] <gb73d> went up so far then blew up
[18:42] <fsphil> tell technically that's how all balloon flights go ;)
[18:42] <fsphil> t/w
[18:43] <gb73d> tru
[18:43] <fsphil> it travelled 335km .. sweet :)
[18:44] <gb73d> one day we will be laucnhing ballons on that planet round saturn
[18:44] <gb73d> track that matt
[18:45] <fsphil> M0DTS will have that covered :)
[18:45] <SpeedEvil> fsphil: good luck!
[18:47] <fsphil> 335km with in 3.5 hours, average speed was 95km/h
[18:47] <fsphil> -with
[18:47] <fsphil> sheesh my grammer has failed today
[18:47] <fsphil> thanks SpeedEvil
[18:48] <gb73d> yeah the track across to the northsea looked really spectatuclr
[18:48] <M0DTS_Rob> An excellent afternoon had here, looking forward to next time!
[18:48] <fsphil> indeed, so who's next? :D
[18:48] <fsphil> I'm waiting for warmer weather before trying again
[18:49] <Upu> me probably
[18:50] <Upu> I need to do a LoS test from my parents upto the moors, 5 clear miles
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[18:51] <Upu> oh and a parachute may not go amiss
[18:51] <fsphil> yes those are good :)
[18:51] <fsphil> arg, looks like I need to get another one
[18:51] <Upu> I ordered some xform ones
[18:54] <Upu> you had more people recieving today than I've seen before
[18:55] <fsphil> I know! there's far more stations up north than I expected :)
[18:55] <fsphil> shame I didn't give them a good signal, but its a good sign
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[18:56] <Upu> and 63 in here too
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[19:00] <gb73d> yeah winter launch was higher risk
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[19:06] <fsphil> not really, that would have been a risky flight at any time
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[19:13] <M0DTS_Rob> Thanks for the fun today...i'm off..
[19:14] <fsphil> cya M0DTS_Rob, and thanks for going out and looking!
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[19:14] <M0DTS_Rob> bye..
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[19:29] <Laurenceb_> debugging hardware is so much easier if you arent in the garden with cold fingers
[19:30] <Laurenceb_> seems my zl-special needs an extra 4pF or so - i swapped the stock 30pf variable cap for 22pF variable
[19:31] <Laurenceb_> probably need 23.5 or so best i can tell
[19:32] <Laurenceb_> microwave oven tests probably arent the way to go - im getting better results with it at the end of the street
[19:35] <Laurenceb_> looks like its more complex than just impedance matching - theres some sort of resonant effects going on
[19:36] <Laurenceb_> its completely dead at 18pF
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[19:42] <jcoxon> evening all
[19:44] <fsphil> hi hi
[19:45] Action: jcoxon is constructing mini payloads
[19:45] <jcoxon> my 868mhz modem only goes down to 9600 baud and gps are standard 4800
[19:46] <fsphil> need something to buffer it
[19:46] <fsphil> a little surface mount attiny maybe?
[19:46] <jcoxon> i've got an arduino pro lying around
[19:53] <Upu> if you're doing mini payloads you should use that GPS chip I use its only £22
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[19:58] <junderwood> jcoxon, you can usually set the GPS chips to a higher baud rate. If you can store that in EEPROM, you have the problem solved
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[19:59] <jcoxon> junderwood, yeah am researching that now
[20:00] <junderwood> Is the plan just to have a GPS receiver and radio?
[20:00] <jcoxon> yeah
[20:00] <jcoxon> as i've actually made an xml on the server which accepts GPGGA strings
[20:00] <junderwood> neat
[20:00] <jcoxon> its not perfect but will plot onto spacenear.us
[20:01] <jcoxon> just researching an idea i have and will email the list this evening
[20:01] <junderwood> how do you plan to receive at 9k6 baud?
[20:02] <SpeedEvil> you can turn the rate way down
[20:02] <SpeedEvil> ah
[20:02] <SpeedEvil> misread
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[20:21] <mattltm> Finished working. Anyone still here?
[20:21] <fsphil> just us ghosts :) wooooo
[20:21] <jonsowman> hi fsphil
[20:21] <mattltm> lol.
[20:21] <jonsowman> saw your email, shame it was lost :(
[20:22] <fsphil> hiya jonsowman, yep but that was always a strong possibility
[20:22] <jonsowman> true
[20:22] <jonsowman> was quite a dramatic flight path
[20:22] <fsphil> I had been counting on the live images though :)
[20:22] <fsphil> figured that at least I'd have some pics
[20:23] <SpeedEvil> What happened about that - antenna probs?
[20:23] <jonsowman> yeah it is a real shame
[20:23] <fsphil> I think so, either damage in flight or bad soldering
[20:23] <jonsowman> did you put the A560 on it in the end?
[20:23] <fsphil> I did
[20:23] <jonsowman> :(
[20:23] <SpeedEvil> I missed the flight - I went for a nap at 5AM, and woke up at 7PM
[20:24] <mattltm> Whats the chances of someone finding it? Do they often get lost and found?
[20:25] <fsphil> I've heard of some being returned, weeks after landing
[20:25] <fsphil> this is a pretty rural area though
[20:25] <SpeedEvil> Wher's your best estimate?
[20:26] <fsphil> http://www.flickr.com/photos/fsphil/5339784169/
[20:26] <fsphil> I think the prediction should be fairly close
[20:26] <fsphil> it hadn't much further to fall
[20:26] <mattltm> I guess this has been done before but what about a mobile that sends a text with gps cords every 30 mins?
[20:26] <mattltm> or a SPOT?
[20:27] <SpeedEvil> Ah.
[20:27] <mattltm> Down to weight I guess?
[20:27] <fsphil> spots are pricey
[20:27] <mattltm> and just another bit of kit to loose.
[20:27] <fsphil> esp if it lands in the ocean
[20:28] <fsphil> a little gsm module would have been good though
[20:28] <Upu> not up there it wouldn't
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[20:28] <fsphil> mm, fair point
[20:28] <SpeedEvil> GSM only works near the ground
[20:29] <mattltm> but would be fine when it came down?
[20:29] <Upu> I meant up there in Yorkshire
[20:29] <SpeedEvil> this means that you may not get off a SMS in the time between when it gets signal, and falls out of signal as it's on the ground
[20:30] <mattltm> how about a text triggered when the altitude is < 500ft?
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[20:32] <mattltm> Or you send a text to it and it sends back info?
[20:33] <fsphil> better to be automatic I think
[20:34] <mattltm> How dificult would it be to create a bit of logic that says "wow im going down fast, better start sending gps updates"?
[20:34] <fsphil> simple -- hadie did that, programmed to stop sending images once it started falling
[20:35] <mattltm> so for the cost of a GSM module and £5 sim card...
[20:35] <mattltm> I liked the backup beacon idea as well.
[20:36] <jonsowman> GSM modules aren't very cheap :(
[20:36] <jonsowman> not as cheap as I'd like, anyway :p
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[20:36] #highaltitude: mode change '+o jonsowman' by ChanServ!ChanServ@services.
[20:36] Topic changed on #highaltitude by jonsowman!jonsowman@sheeva.hexoc.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk
[20:37] <fsphil> I liked jcoxon's morse beacon, kept going for days
[20:37] #highaltitude: mode change '-o jonsowman' by ChanServ!ChanServ@services.
[20:37] <mattltm> was that on BallastHalo?
[20:38] <jonsowman> fsphil: the CW/hellscreiber one?
[20:38] <fsphil> yep!
[20:38] <mattltm> Thats the one
[20:38] <jonsowman> yeah that's a neat idea
[20:38] <jonsowman> hellscreiber is awesome, too
[20:38] <fsphil> needs to be aware of gps though
[20:38] <mattltm> neet idea. Did it give gps?
[20:38] <mattltm> opp..
[20:38] <jonsowman> mattltm: no, beacon only
[20:39] <mattltm> I'll get my doppler kit! :)
[20:39] <fsphil> jonsowman, slowhell is very good - readable with barely a signal
[20:39] <jonsowman> there are lots of cool transmission modes I'd like to play with
[20:39] <mattltm> http://www.youtube.com/watch?v=a29h2pZaij8
[20:40] <jonsowman> :D
[20:40] <fsphil> "weep weeep weep weeeep...."
[20:40] <mattltm> http://www.youtube.com/watch?v=B-o9fDeFYkE&feature=related
[20:42] <mattltm> Looks like the payload was DF'ed
[20:43] <fsphil> glad that tree was there
[20:43] <jonsowman> haha that's what I was thinking
[20:43] <jonsowman> amazing luck
[20:43] <mattltm> very lucky!
[20:43] <mattltm> I love a bit of DF.
[20:44] <mattltm> Maybe the water helped out with the beacon signal a touch.
[20:45] <mattltm> Sorry for the questions but this is new to me!
[20:45] <mattltm> Has anyone played with radiosondes?
[20:45] <mattltm> as in ripping out the TX and usine the GPS?
[20:46] <fsphil> not all radiosondes have gps
[20:46] <mattltm> I was thinking somthing like this...
[20:46] <mattltm> http://cgi.ebay.co.uk/Vaisala-Radiosonde-RS80-15GH-Digital-GPS-WeatherStation-/170500453667?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item27b29e7523
[20:46] <mattltm> seams like a cheep way of getting a gps.
[20:47] <SpeedEvil> IT's not a 'cooked' GPS
[20:47] <mattltm> cooked?
[20:47] <SpeedEvil> It outputs some sort of wierd binary protocol.
[20:47] <SpeedEvil> Which does not contain a position solution.
[20:48] <mattltm> oh, not NMEA
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[20:55] <mattltm> I see, they send GPS doppler readings.
[20:55] <fsphil> the fsa03 was the cheapest, though impossible to get these days
[20:56] <mattltm> cool - found SondeMonitor
[20:57] <mattltm> http://www.coaa.co.uk/sondemonitor.htm
[21:00] <mattltm> looks interesting.
[21:02] Action: Laurenceb_ is still trying to get python to behave
[21:02] <Laurenceb_> http://code.activestate.com/recipes/440554/
[21:02] <Laurenceb_> how would i actually use that code?
[21:03] <Laurenceb_> - whats the best way to add the functionality to Popen?
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[21:16] <DanielRichman> Laurenceb_: dump that code in a file called superpopen.py and from superpopen import Popen; then use superpopen.Popen rather than subprocess.Popen
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[21:19] <Laurenceb_> i see
[21:19] <Laurenceb_> thanks
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[22:06] <MrCraig> ok - same circuit I wired up the other day, input to ntx2 direct from tx pin on the pic with repeating data. I don't hear nothing but a buzz. hmmm
[22:07] <Laurenceb_> DanielRichman: im getting NameError: name 'subprocess' is not defined
[22:07] <DanielRichman> Laurenceb_: file/line?
[22:07] <Laurenceb_> File "./autotune.py", line 47, in <module
[22:07] <Laurenceb_> its the main script
[22:07] <DanielRichman> are you still importing subprocess in addition to superpopen?
[22:07] <DanielRichman> you need to import both
[22:08] <Laurenceb_> oh
[22:08] <fsphil> MrCraig, tried retuning the receiver?
[22:08] <Laurenceb_> now i get AttributeError: 'Popen' object has no attribute 'recv'
[22:09] <DanielRichman> uh :X
[22:09] <DanielRichman> I don't know why that would be
[22:10] <Laurenceb_> b = fixedpopen.subprocess.Popen(['./dump', sys.argv[1]], shell=False, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, bufsize=1)
[22:10] <Laurenceb_> input_=b.recv()
[22:10] <Laurenceb_> ^that line gives the error
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[22:11] <DanielRichman> try
[22:11] <MrCraig> yeah tried a little varience fsphil - I think actually I'm just transmitting so fast it sounds like a buzz - the sillyscope would bring the speed down per sample
[22:11] <DanielRichman> b = fixedpopen.Popen(...)
[22:11] <fsphil> ah, yea a high baud rate is definitely buzzy
[22:11] <Laurenceb_> ah that seems to have fixed it
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[22:12] <Laurenceb_> yeah i see why, thanks
[22:14] <MrCraig> my scope probe seems to affect it too
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[22:48] <MrCraig> icarus is pic based :-)
[22:49] <MrCraig> or perhaps not :-/
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[23:10] <jcoxon> hey all
[23:10] <jcoxon> i've been thinking about these ideas of micro balloons
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[23:12] <jonsowman> go on...
[23:12] <jcoxon> how perhaps we should actually start a class of payloads
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[23:13] <jonsowman> as in superlightweight flight computers etc?
[23:13] <jcoxon> yeah
[23:14] <jonsowman> sounds good, it'll be interesting to see how the sunday launch goes
[23:14] <jcoxon> monday
[23:14] <jcoxon> :-p
[23:14] <jonsowman> oh yes
[23:14] <jonsowman> monday
[23:14] <jonsowman> :)
[23:14] <jcoxon> so i was thinking
[23:14] <jcoxon> i might use this week to construct a lightweight payload
[23:15] <jcoxon> and sort of wiki-blog it
[23:15] <jonsowman> definitely
[23:15] <jonsowman> documenting things is always a good idea
[23:15] <jonsowman> :)
[23:15] <jcoxon> to show that little can be more
[23:15] <jcoxon> so it'll be...
[23:15] <jcoxon> gpsbee + antenna
[23:15] <jcoxon> seeeduino film
[23:16] <jcoxon> ntx2 radio
[23:16] <jcoxon> lipo
[23:16] <jcoxon> + aercomm ac4868 radio modem
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[23:16] <jcoxon> which weighs in total < 100g
[23:16] Action: MrCraig gives up for tonight - night all.
[23:16] <jcoxon> night MrCraig
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[23:16] <jonsowman> yeah
[23:20] <jcoxon> which will give us 434 downlink and 868 uplink/downlink
[23:31] <fsphil> what do you use for the uplink?
[23:31] <jcoxon> i've got 2 868 radio modems
[23:32] <jcoxon> got them for pegasus 3
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[23:38] <fsphil> how long do you think the batteries would last? they can't be all that big
[23:39] <jcoxon> which batteries?
[23:39] <Darkside> eek, what happened to hadie2?
[23:40] <The-Compiler> Darkside: "The hadie:2 payload is now resting in the green fields of England, on the edge of the Yorkshire Dales. It's quite a rural area so recovery is looking a bit unlikely at this point. If you are in the area please keep an eye out for a small silver box with a black parachute. The predicted landing spot was 54.3629, -1.88296, but it's likely somewhere east of this"
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[23:41] <fsphil> jcoxon, the lipo
[23:41] <fsphil> Darkside, tis at the mercy of the english general public :)
[23:41] <Darkside> damn
[23:41] <jcoxon> fsphil, 2000mAh
[23:42] <The-Compiler> Darkside: http://paste.pocoo.org/raw/317940/
[23:43] <fsphil> I'm still hopeful someone will find it
[23:43] <fsphil> it should stand out
[23:44] <The-Compiler> gotta find someone with a jet :p
[23:44] <fsphil> at least it reached land, I half expected it to land in the sea
[23:44] <Darkside> how was your antenna set up?
[23:44] <Darkside> i.e. how would it break in wind?
[23:45] <The-Compiler> well I'm really scared what will happen to my balloon when I let it fly, because I'm in Switzerland, and we have many lakes, the alps, high mountains and whatnot
[23:46] <Randomskk> better make it waterproof and buoyant :P
[23:46] <fsphil> Darkside, it got a pounding - spinning like mad
[23:46] <jcoxon> The-Compiler, mobile reception is good in switzerland iirc
[23:46] <Darkside> fsphil: got a pic of the payload?
[23:47] <The-Compiler> Randomskk: waterproof isn't a good idea, is it? I think it would burst at such little pressure
[23:47] <The-Compiler> jcoxon: yep, it is
[23:47] <The-Compiler> jcoxon: planning to use xbee + gsm for radio
[23:47] <Randomskk> depends how you do it I suppose
[23:47] <Randomskk> xbee is an interesting idea, what are you receiving it with?
[23:47] <fsphil> a friend was taking pictures at the launch but I don't have a copy yet, but this is it before I put the lid on last night: http://www.flickr.com/photos/fsphil/5336352159/
[23:47] <jcoxon> yeah certainly gsm
[23:48] <Darkside> fsphil: wheres the antenna?
[23:48] <The-Compiler> jcoxon: well, I heard GSM won't work above ~5km
[23:48] <fsphil> I hadn't made it at that point :)
[23:48] <Darkside> ahh
[23:48] <fsphil> will get those pics tomorrow
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[23:48] <Darkside> so the antenna was out from the side? or pointing down
[23:48] <The-Compiler> Randomskk: most likely another XBee + USB + Laptop
[23:48] <jcoxon> The-Compiler, it won't but will be great below 5km
[23:48] <fsphil> hanging from the bottom -- was a quarter-wave vertical
[23:48] <jcoxon> so even if radio stuff breaks you'll find the payload
[23:49] <Darkside> fsphil: hrm, ours have never broken :(
[23:49] <Randomskk> The-Compiler: I would be really surprised if the zigbee works for very long distances without a better antenna on the other end, but I guess you never know
[23:49] <The-Compiler> jcoxon: hmm well, if the GSM antenna breaks I won't
[23:49] <fsphil> Darkside, it could equally have been bad soldering on my part
[23:49] <Darkside> fsphil: ah :(
[23:49] <The-Compiler> Randomskk: XBee != Zigbee :p
[23:49] <Darkside> im not sure what i'm gonna do for my VHF antenna yet
[23:49] <Randomskk> The-Compiler: don't all the xbees use zigbee?
[23:50] <Randomskk> I mean, I realise there are a lot of xbees
[23:50] <The-Compiler> Randomskk: zigbee is the short-distance stuff I think (like bluetooth)
[23:50] <Randomskk> but certainly they are all 802.15.4
[23:50] <Randomskk> zigbee is a communication protocol a bit like TCP
[23:50] <Randomskk> it operates over 802.15.4, which is a low power 2.4GHz wireless link a bit like WiFi (802.11)
[23:50] <Darkside> won't that want 2 way communication to work properly?
[23:51] <Darkside> from a balloon you usually only care about getting data from the balloon - telling you where it is
[23:51] <The-Compiler> Randomskk: http://www.digi.com/products/wireless/point-multipoint/xbee-pro-868.jsp#overview
[23:51] <Randomskk> I think some of the xbee modules may work with comms only going one direction though I can't remember for sure?
[23:51] <Randomskk> xbee make a few interesting looking modules
[23:51] <Randomskk> yea, like the 868mhz ones
[23:51] <The-Compiler> Randomskk: "Outdoor RF line-of-sight range up to 80 km
[23:51] <Darkside> ok thats interesting
[23:51] <Randomskk> it will be interesting to see how well it works
[23:52] <The-Compiler> yep
[23:52] <Randomskk> that's 80km w/o a directional antenna
[23:52] <jcoxon> the xtend modules are 1W iirc
[23:52] <The-Compiler> "Up to 25 miles (40 km) with dipole antenna"
[23:52] <Randomskk> yea
[23:52] <Randomskk> 1W is usually legal for 868
[23:52] <jcoxon> 500mW
[23:52] <Darkside> i was looking at using someting similar for a RC glider thing i was working on
[23:53] <Darkside> but i don tthink 868MHZ is legal in australia
[23:53] <Randomskk> http://www.sparkfun.com/products/9411
[23:53] <The-Compiler> Transmit Power1 mW (0 dBm) to 315 mW (+25 dBm)
[23:53] <Randomskk> 1W, "40 miles"
[23:53] <Randomskk> at 115200 baud
[23:53] <Randomskk> uses FHSS too
[23:53] <jcoxon> oh i meant 500mW is legal in the air
[23:53] <Darkside> Randomskk: wow
[23:53] <Darkside> just drop the baud rate :P
[23:54] <Randomskk> indeed
[23:54] <Darkside> you don't need 115kbaud
[23:54] <The-Compiler> well, I'm thinking about transmitting pictures as well :p
[23:54] <The-Compiler> but I think I'll focus on recieving the payload on the first launch :p
[23:55] <The-Compiler> damn, gotta get up in 5 hours, I better go to sleep
[23:55] <The-Compiler> wait, no, 4 and a half :(
[23:55] <Darkside> always a good idea on aiming to get the payload back The-Compiler :P
[23:56] <fsphil> yea ;-p
[23:56] <fsphil> oh wait...
[23:56] <Darkside> awwwwww
[23:56] <Darkside> >_>
[23:56] <Darkside> (13/13)
[23:57] <Darkside> but we don't have oceans around us
[23:57] <Darkside> we only get near them when something goes wrong, like the balloon not bursting
[23:58] <fsphil> has that happened you?
[23:59] <Darkside> horus 8
[23:59] <Darkside> balloon got caught in what we assume was a jetstream, and flew straight towards the ocean at 100kph
[23:59] <Darkside> then burst at pretty much the last second
[00:00] --- Mon Jan 10 2011