highaltitude.log.20110108

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[10:34] <fsphil> morning all
[10:56] <Randomskk> hiya
[11:01] <Darkside> hrmm
[11:01] <Darkside> hi all
[11:09] <junderwood> fsphil, is the launch still on for tomorrow?
[11:09] <junderwood> 15 mph ground level winds look like fun
[11:11] <fsphil> forecast atm is for 6mph
[11:12] <fsphil> should be fine :)
[11:12] <fsphil> although there's to be some light snow today at the launch site
[11:14] <junderwood> where did you get 6 mph from?
[11:14] <junderwood> metoffice has gusts to 23
[11:15] <junderwood> metcheck has 15, gusting 18
[11:15] <fsphil> http://news.bbc.co.uk/weather/forecast/2713?area=BT79
[11:18] <junderwood> Ah.
[11:18] <junderwood> Well. Good luck! I hope to be listening.
[11:18] <junderwood> Although you will need a decent altitude before I can pick you up
[11:19] <junderwood> Where is the current landing prediction?
[11:39] <fsphil> http://habhub.org/predict/#!/uuid=dca534b8d599b8bb25b4cd5e9296f98f0e660ad8
[11:40] <fsphil> not far from Darlington
[11:40] <fsphil> well, a fair bit
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[12:18] <fsphil> eek, heavy snow
[13:22] <Upu> you're going to land on a military base
[13:22] <Upu> "lol"
[13:23] <Darkside> hahahaha
[13:23] <Upu> from Ireland
[13:23] <Upu> "lol"^2
[13:28] <Laurenceb_> hi all
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[13:33] <Upu> hi Laurenceb
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[13:41] <fsphil> stuuupit internet
[13:42] <fsphil> Upu, on the plus side someone would find it :)
[13:42] <Upu> Might not put your address on it though :)
[13:43] <fsphil> lol
[13:43] <Upu> "greetings from ireland"
[13:43] <Upu> controlled explosion :)
[13:44] <fsphil> be typical that, to make it that far, be found .. only to be blown up
[13:44] <fsphil> brb, food!
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[15:12] Action: Laurenceb_ has been eating birthday cake
[15:17] <fsphil> yours?
[15:23] <Laurenceb_> yes
[15:23] <fsphil> happy birthday :)
[15:23] <Laurenceb_> thanks
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[15:43] <jonsowman> [B[B
[15:43] <jonsowman> #.
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[15:57] <Laurenceb_> http://www.b3tards.com/u/420c52b7900bd7084f02/hit-by-train.gif
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[16:10] Action: Laurenceb_ is adding more SDR features
[16:12] <Laurenceb_> should now spit out signal in dBm, if the active ant is on, and allow mixer calibration and archiving of settings to eeprom
[16:12] <Laurenceb_> anyone ehre got a funcube dongle?
[16:14] <Hibby> I know someone who's bought one, but outside that not really
[16:14] <Hibby> too busy playing with APRS and my big satellite system :)
[16:18] <Laurenceb_> sounds fun
[16:18] <Laurenceb_> id be interested to see how well it really works
[16:19] <Laurenceb_> im not convinced there wont be harmonics of the lo
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[16:36] <jonsowman> #.
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[16:47] <jcoxon> afternoon
[16:47] <jonsowman> hello :)
[16:50] <jcoxon> hey jonsowman
[16:50] Action: jcoxon is sad as b and q have sold out of foiled bubble wrap
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[16:54] <jonsowman> :(
[16:57] <jcoxon> fsphil, i've changed spacenear.us's title
[16:57] <fsphil> brilliant, thanks jcoxon
[16:58] <fsphil> will the prediction work automatically or does that have to be setup at the time?
[16:58] <jcoxon> ummm i need to grab the gfs
[16:58] <jcoxon> probably best to pull teh data tomorrow
[16:58] <jcoxon> i'll do it in the morning
[17:00] <fsphil> I'm sure I've forgotten something
[17:00] <jcoxon> hehe
[17:01] <jcoxon> it'll be fine
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[17:03] <fsphil> added the code to set the gps mode
[17:03] <fsphil> seems to work, at least it's responding the way it should
[17:03] <jcoxon> good move
[17:03] <jcoxon> did you write the code?
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[17:08] <fsphil> grr internet
[17:08] <jcoxon> <jcoxon> did you write the code?
[17:08] <fsphil> the actual command packet is the one from the wiki
[17:08] <jcoxon> okay cool
[17:08] <jcoxon> i recently posted my code on the wiki
[17:09] <jcoxon> well not my code i think i nicked it off juxta
[17:09] <fsphil> I think juxta wrote the other wiki code too?
[17:09] <jcoxon> yeah
[17:10] <fsphil> brb,, needa get some duct tape
[17:15] <jcoxon> i'm quite pleased now - have got my basic flight computer code well optimised
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[17:40] <jonsowman> jcoxon: any idea for timing yet next sunday?
[17:43] <jcoxon> jonsowman, tempted to swtich to monday
[17:44] <jcoxon> would that work better?
[17:44] <jonsowman> monday is definitely better for me
[17:44] <jcoxon> i might be having sunday lunch you see.
[17:45] <jcoxon> i'm also thinking - if the weather is rubbish we should't do the float
[17:45] <jonsowman> i have a fair amount of work to do but I should be able to turn up for a bit
[17:45] <jonsowman> yep ok
[17:45] <jcoxon> instead launch some foil balloons perhaps
[17:45] <jonsowman> we will see what happens - keen to help with the floater launch if it happens
[17:45] <jcoxon> ping eroomde
[17:47] <jonsowman> you got a payload together for the superpressure?
[17:47] <jcoxon> not yet...
[17:47] <jcoxon> still waiting on my dhl delivery - which is still stuck in customs even though i've paid :-((
[17:48] <jonsowman> ah right :(
[17:48] <jcoxon> but it won't take long...
[17:48] <jonsowman> what's that, radios?
[17:48] <jcoxon> seeeduino film
[17:48] <jonsowman> :)
[17:48] <jcoxon> 1g flight computer
[17:48] <jonsowman> yeah was reading about it the other day when you mentioned it
[17:49] <jonsowman> neat thing
[17:49] <jcoxon> so gps module + seeeduino + ntx2
[17:49] <jcoxon> + battery
[17:50] <jonsowman> sounds good to me
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[18:06] Action: fsphil shoots the router
[18:07] <fsphil> actually I'd need to fix that tonight, I'm running radio from home too
[18:13] <Laurenceb_> launch next weekend?
[18:13] <SpeedEvil> Argh.
[18:14] <SpeedEvil> Stupid sleep.
[18:14] <SpeedEvil> I was tired last-night and went to bed around midnight. I woke up at 5, was online for a bit, and decided to get another couple of hours sleep.
[18:14] <SpeedEvil> Just woke up
[18:16] <Laurenceb_> lol
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[18:17] <Laurenceb_> jcoxon: launching next weekend?
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[18:20] <Laurenceb_> oh hes gone
[18:24] <fsphil> are you going to try receiving with the lna antenna tomorrow Laurenceb_?
[18:24] <Laurenceb_> launch tomorrow?
[18:24] <Laurenceb_> oh thats slightly annoying
[18:24] <fsphil> yep, I'm hoping to put something up there
[18:25] <Laurenceb_> i was hoping to get down there
[18:25] <Laurenceb_> really poor line of sight to the south here unfortunately
[18:25] <fsphil> where are you now?
[18:26] <Laurenceb_> derbyshirr
[18:28] <fsphil> this flight will be to your north west
[18:29] <fsphil> n.ireland to yorkshire
[18:30] <Laurenceb_> oh nice
[18:30] <Laurenceb_> dodnt realise you were launching
[18:30] <Laurenceb_> i have a really good view in that direction
[18:30] <fsphil|m> nor did I until a few days ago :)
[18:31] <fsphil|m> only just got the caa paperwork
[18:31] <Laurenceb_> what time is launch?
[18:31] <fsphil|m> 11:00
[18:32] <fsphil|m> roughly
[18:32] <Laurenceb_> ok
[18:32] <fsphil|m> if the wind at the launch site is strong, could delay it a bit
[18:35] <gb73d> tomoz ?
[18:36] <Laurenceb_> 434.075?
[18:37] <gb73d> have swapped the vr5000 for the AOR8200mkIII seems to be much more sensitive
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[18:37] <gb73d> on uhf
[18:38] <gb73d> plus all the foliage is gone
[18:38] <gb73d> i might do well w a balloon, justy need to swap the gp to the 430mhz version
[18:39] <gb73d> not sure if i can make it tomoz but will try a ballon monitoring again soon
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[18:40] <fsphil|m> be great if you could
[18:43] <jcoxon> i think i'm too far for tomorrow
[18:43] <jcoxon> especially as i'm behind the south downs
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[18:46] <fsphil> possibly .. though with a decent yagi it may work
[18:46] <jcoxon> decent yagi + climbing up to chanctonbury ring
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[18:48] <fsphil> looking at a picture of that, it's pretty high up. that's to your north?
[18:48] <jcoxon> nothing really
[18:48] <jcoxon> very good view
[18:48] <jcoxon> its where eroomde and I would track from
[18:49] <fsphil> it's not far of the height of the local mountain here
[18:49] <jcoxon> i think i'll be more suited to some globaltuners :-)
[18:52] <gb73d> ok will put it on my list for 1100
[18:54] <fsphil> everything's inside the payload box, looks fairly snug
[18:56] <fsphil> oh jcoxon, can you change the payload xml? I'm using 2 stop bits now
[18:57] <jcoxon> done
[18:57] <jcoxon> pics?
[19:00] <fsphil> putting the foil on first
[19:00] <fsphil> "space foil" .. nice
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[19:32] Action: Laurenceb_ poners if it is wise to update SDR firmware at this point
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[19:52] <Laurenceb_> whats the burst altitude going to be?
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[20:06] <fsphil> I'm expecting ~31km
[20:06] <fsphil> the ascent will be fairly slow
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[20:28] <fsphil> payload box without the roof: http://www.flickr.com/photos/fsphil/5336352159/
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[20:59] Action: MrCraig starts texting phill
[21:00] <fsphil> yea oops :) noticed that after
[21:01] <MrCraig> question - why is the payload so large? Is all that insulation necessary?
[21:01] <MrCraig> reason I ask is, I was planning a far smaller box
[21:03] <fsphil> padding for landing mostly
[21:03] <fsphil> the cirrus payload fell apart when it hit the ground
[21:04] <MrCraig> ahh
[21:04] <MrCraig> When is your launch due?
[21:05] <fsphil> 11:00 tomorrow morning
[21:05] <MrCraig> oh yours is the launch tomorrow :-) awesome.
[21:06] <fsphil> weather permitting -- it's really gusty at the moment, though forecast to ease
[21:06] <MrCraig> yeah, I figured this time of year could be tricky for winds
[21:07] <fsphil> the high altitude winds are pretty fast .. the payload is in for a rough ride :)
[21:07] <MrCraig> I'm hoping to be ready for sometime april/may. I'm currently breadboarding serial communications.
[21:07] <fsphil> how's it going?
[21:08] <MrCraig> well - there's a mountain for me to learn still. The chips I've chosen have serial ports which is handy, but they aren't good running from the internal osc and as yet I don't have any crystals.
[21:08] <MrCraig> I'm still in the learning phase.
[21:09] <MrCraig> I have almost all of the build materials, and I'm just waiting on a new controller for the CNC to build the pcb
[21:09] <fsphil> ah your fabbing the pcb yourself? neat
[21:10] <MrCraig> yeah, and probably fabbing parts of the payload box etc.
[21:10] <MrCraig> I've still to sort out a CCA exemption and launch site - did you get your own or are you launching on a group exemption?
[21:11] <fsphil> got my own
[21:12] <MrCraig> That's the part that concerns me the most, I'd like my own. Back when I first emailed rob and found out about this channel he suggested I might launch on a group exemption but that was a long time ago and frankly I should do it for myself if I want to continue with repeat projects.
[21:12] <fsphil> the launch site is easy enough for them as it's nowhere near... anything
[21:13] <MrCraig> you're launching from cambridge?
[21:14] <fsphil> I wish, would have been handier :) launching from here: http://habhub.org/predict/#!/uuid=2b67c825eec0f28e088aaa49471cc54418ec2580
[21:16] <MrCraig> That's so cool, a flight across the waters
[21:16] <fsphil> indeedy
[21:16] <fsphil> a bit of a risk as there's quite a bit of water, and I can't recover it myself if it reaches dry land
[21:16] <fsphil> there's also the lake district and yorkshire dales to get lost in :)
[21:17] <MrCraig> hmm, hills and radio signals
[21:17] <MrCraig> good point
[21:18] <fsphil> yep - if it lands there I can't see it ever coming back. unless some hill walker or climber finds it
[21:18] <MrCraig> it's a bit far north for me to hope to pick up the signal directly unless I pack up and head north
[21:19] <MrCraig> Perhaps if you try the same sort of flight again, consider a gsm for sending final positioning data?
[21:19] <fsphil> yep, gsm backup is definitely on my list for next time
[21:20] <MrCraig> I wonder if anyone has ever recovered a payload from the sea's too. I mean, I imagine they float and there ought to be a good line of sight.
[21:21] <fsphil> Tim from the Netherlands did that
[21:21] <fsphil> well, I don't think he used the radio -- just went to the last position in a boat
[21:21] <MrCraig> Guessing that's pricey
[21:23] <fsphil> juxta had to swim to recover one of the horus flights -- this is in australia too, where everything in the sea probably wanted to eat him
[21:23] <MrCraig> wow
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[21:24] <MrCraig> but then - aren't austrailians 'ard?
[21:24] <fsphil> I won't have the same dedication ;-)
[21:24] <fsphil> if it lands in the irish or north sea.. it can stay there :)
[21:24] <MrCraig> hehe - I can't say I'd be willing to engage the waters personally
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[21:24] <fsphil> it'll wash up eventually I think
[21:25] <fsphil> but the innards would be well corroded
[21:25] <MrCraig> yah salt water, would be lucky to get back any data
[21:26] <MrCraig> I'm building twin payloads for that very reason - incase of losing one
[21:26] <fsphil> it would be a neat experiment, having an air-tight box and some solar panels - along with one of those satellite trackers
[21:27] <Randomskk> :( so I left my yagi at home it turns out
[21:27] <MrCraig> I've had a strong desire to launch a fiberglass fixed wing glyder from the oceans with gps guidance for return.
[21:27] <Randomskk> which will make tracking tomorrow somewhat hard
[21:28] <fsphil> MrCraig, that would be pretty epic
[21:29] <fsphil> Randomskk, drats!
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[21:31] <Randomskk> fsphil: yea D:
[21:31] <Randomskk> really gutted, seeing as I got this yagi specially since it folded up so was easy to bring to uni
[21:39] <fsphil> you've 12 hours to make one :)
[21:39] <MrCraig> it's a 6 hour drive from here and all I have is a multi whip
[21:39] <MrCraig> and I'm actually marginally disturbed, it looks from these pics like you've been canibalising commodore systems.
[21:40] <fsphil> lol
[21:40] <fsphil> the amiga with the hammer?
[21:40] <MrCraig> yah! that belongs in a museum
[21:41] <fsphil> the hammer is needed to get it working, the chip it's resting on has a dodgy solder joint
[21:41] <MrCraig> aaah then that's a perfectly acceptable use for a hammer on an amiga
[21:41] <fsphil> I got a hot air gun to try and reflow the solder, but I'm not brave enough to try it yet :)
[21:42] <MrCraig> it's a 1200 too right?
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[21:42] <MrCraig> yeah, found the label - don't kill a 1200.... maybe blue tac
[21:42] <fsphil> yea
[21:43] <fsphil> I'll get it reflowed once I'm sure I can do it without burning the pcb
[21:43] <fsphil> all other bits are fine, and it boots up with that hammer
[21:43] <MrCraig> *nods makes sense.
[21:43] <MrCraig> lol can't stop giggling
[21:44] <MrCraig> Ahh those were the days - passive cooling.
[21:44] <fsphil> single disk operating systems
[21:44] <MrCraig> 880KB and no more
[21:45] <fsphil> or a bit more with the right hack
[21:45] <MrCraig> really? you could get at the extra on the HD floppies?
[21:45] <fsphil> not that much, but I remember being able to format a DD disk to 990kb
[21:47] <MrCraig> interesting - mine ended up with an additional external disk drive and a laptop HD butchered in. Always wanted to tower it but never did, it was very pricey and I was a broke student
[21:47] <fsphil> 960kb, http://www.wordiq.com/definition/Floppy_disk#The_Commodore_Amiga
[21:47] <fsphil> that a1200 motherboard was in a tower at one point
[21:47] <MrCraig> eventually it got swapped out for a rare 286 which had some 386 features (such as protected mode)
[21:47] <fsphil> but I never liked it
[21:48] <fsphil> I've got a compact flash disk in my other amigas, 4Gb and totally silent
[21:48] <fsphil> boots in seconds
[21:48] <MrCraig> awesome :-) you're a true hacker
[21:50] <MrCraig> takes around 30 seconds to boot the eeepc from flash into winxp - and something's wrong with my power supply :-/ Need to fab a board for that too when the tools arrive.
[21:50] <natrium42> hey fsphil, good luck with the launch tomorrow!
[21:50] <fsphil> have you any heat problems with your eeepc psu? my power brick is a small white one, and get incredibly hot -- almost too hot to touch
[21:50] <fsphil> heya natrium42, thanks! looking forward to it :)
[21:52] <MrCraig> well the eeepc is mounted behind the dash of my car, not using the supplied brick, I'm feeding it DC from a modded cigarette lighter socket supply. But that supply is tripping out frequently, and over the christmas period wouldn't light up at all. The eeepc is also VERY touchy about it's supply, tollerance is slight and it refuses to start if the supply is out
[21:52] <MrCraig> I need to build up a 12v regulator for it.
[21:53] <fsphil> there's a bug in the bios of this one where it never powers down the usb ports
[21:53] <fsphil> the battery always drains within a day, even if it's not being used
[21:53] <fsphil> I'll probably be using the thinkpad tomorrow, even though it's a bit slower
[21:53] <MrCraig> hmm, I didn't notice that issue with my previous one (older model) - I wouldn't with the newer one as the battery is removed.
[21:54] <fsphil> this is the 900 model I think
[21:54] <MrCraig> I've noticed though that when I power down the eeepc in the car, the usb is still lit until I kill the mains.
[21:54] <MrCraig> sounds about right
[21:55] <fsphil> shame too cause it's a great wee laptop
[21:55] <fsphil> I replaced the PCI flash board with something a bit faster, as you say it's very slow
[21:55] <MrCraig> it could be a useful thing too though, those batteries do seem to suffer from the memory issue, which a permanent discharging could help preserve.
[21:56] <fsphil> though I'm running fedora on it, not windows
[21:56] <fsphil> but it boots up in about 20 seconds
[21:57] <MrCraig> ahh, I avoided linux for only one reason - setting up drivers for everything is alien to me and reinstalling those eeepc's without an external cdrom is a chore. I cut the xp install down as much as poss and removed swapping to help. It's not so bad, just too long to bother turning on for short journeys.
[21:57] <Laurenceb_> launch still on?
[21:58] Action: Laurenceb_ runs ubuntu
[21:58] <Laurenceb_> is there a forecast?
[21:59] <MrCraig> I've tried ubuntu on this laptop (and run ubuntu and fedora boxes happily before) but again, driver issues. Which sux cos I'd much rather linux as a day to day desktop.
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[22:03] Nick change: MrCraig -> MrCraig_Away
[22:04] <fsphil> Laurenceb_, yep: http://habhub.org/predict/#!/uuid=a9c63bea87a4c827238759e91c928b7835e9419e
[22:04] <fsphil> everything on the eeepc should work these days with fedora and ubuntu out of the box
[22:07] <Upu> looks better for pick up
[22:07] <Upu> 11am launch ?
[22:07] <fsphil> yep
[22:07] <Upu> Still considering if I can go get that
[22:08] <fsphil> if it lands there, could be anywhere on that flight path
[22:09] <Upu> aye well I'll check back tommorrow morning
[22:09] <Laurenceb_> ill try and get something with the SDR
[22:09] <Laurenceb_> RTTY?
[22:10] <fsphil> yep, 300 baud, 350hz shift, 8n2
[22:10] <Laurenceb_> should have good reception here - im on a hill facing north west
[22:10] <Laurenceb_> hmm thats fast
[22:10] <Laurenceb_> will be interesting
[22:10] <fsphil> yea, needs to be faster for the images
[22:10] <m0dts_Rob> I'l be monitoring from Middlesbrough so looking forward to some good data if it gets ove the sea!
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[22:11] <Laurenceb_> oh images?
[22:11] <Laurenceb_> do i need modded fldigi?
[22:11] <fsphil> fantastic -- it should be heading right for you rob
[22:11] <fsphil> Laurenceb_, the latest version should do the trick
[22:11] <Laurenceb_> how?
[22:11] Action: Laurenceb_ wonders if jcoxon pulled the stream addition
[22:12] <fsphil> it has extra code to listen out for ssdv packets, and render them to a window
[22:12] <fsphil> "View -> SSDV RX"
[22:12] <fsphil> it also uploads them so they can be combined with what others are receiving
[22:12] <Laurenceb_> hmm he hasnt
[22:13] <m0dts_Rob> yes it may well get close to me but who knows..
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[22:13] <Laurenceb_> i have 3.20.16
[22:13] <m0dts_Rob> need 3.20.29
[22:14] <Laurenceb_> ill have to rebuild for source
[22:14] <fsphil> yea, upgrading is recommended
[22:14] <fsphil> there's a few bugs fixed
[22:14] <Laurenceb_> .me isnt a github expert
[22:14] <Laurenceb_> is there a way to pull jcoxons stuff into my build?
[22:14] <Laurenceb_> brb
[22:14] <fsphil> yea, lemme see if I can remember
[22:15] <fsphil> you add jcoxon's branch as a remote: git remote add http://github.com/jamescoxon/dl-fldigi.git
[22:15] <fsphil> no
[22:16] <fsphil> git remote add jcoxon http://github.com/jamescoxon/dl-fldigi.git
[22:16] <fsphil> fetch: git fetch jcoxon
[22:16] <fsphil> merge: git merge jcoxon/master
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[22:42] <mattltm_> Is Hadie set for launch tomorrow?
[22:43] <Upu> yep
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[22:45] <Laurenceb_> blerg
[22:46] <fsphil> it's snowing pretty heavy here atm
[22:47] <mattltm_> Thanks Upd. What time is the launch?
[22:48] <fsphil> target is still to launch at 11:00
[22:48] <Laurenceb_> how do i do remote add?
[22:48] <fsphil> git remote add <name> <url>
[22:49] <Laurenceb_> oh im just browsing github
[22:49] <fsphil> ahh, nah this is on the command line
[22:49] <Laurenceb_> got you
[22:49] <fsphil> you merge it into your local copy, then push that to github
[22:49] <Laurenceb_> im lazy ill do it manually
[22:49] <Laurenceb_> but yeah setting it up properly would be wise
[22:50] <fsphil> it should be easier to merge
[22:50] <fsphil> Upu, what's the forecast like for you tomorrow?
[22:51] <Laurenceb_> argg hes changed the main interface
[22:51] <Upu> I'm good at the moment
[22:51] <Upu> not for the lakes
[22:51] <fsphil> Laurenceb_, only added the frequency control
[22:51] <Upu> but A1 is ok
[22:52] <Laurenceb_> fsphil: yeah bu i need to add my changes as well
[22:52] <fsphil> sweet -- it *should* miss the lakes
[22:53] <fsphil> stopped snowing here now
[22:54] <mattltm_> Thanks fsphil. I am going to have a go at tracking. My first time. I may be a bit to far away though.
[22:54] <Upu> Where are you Matt ?
[22:54] <mattltm_> Kent.
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[22:55] <mattltm> Thats better!
[22:55] <Upu> you might get a signal at the highest
[22:55] <Upu> the tracker shows a circle which is the radio horizon
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[22:55] <mattltm> I have a 14 element yagi. Where is the launch point?
[22:56] <fsphil> mattltm, the latest prediction: http://habhub.org/predict/#!/uuid=a9c63bea87a4c827238759e91c928b7835e9419e
[22:56] <mattltm> exelent. Thanks.
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[22:56] <Upu> can someone PM me the password for the tracker so if I do go I can use the mobile tracker
[22:56] <Upu> Unfortunatly I don't have the version that caches the location if the signal is crap
[22:56] <mattltm> And do I need ti install Fidigi?
[22:56] <fsphil> mattltm, have you installed the latest version of dl-fldigi?
[22:57] <mattltm> lol
[22:57] <mattltm> I will have in a second :)
[22:57] <fsphil> I iz in your mind ;-)
[22:57] <Upu> whats the URL fsphil ?
[22:57] <mattltm> Agggghhhh! There is a fair bit of room in there.
[22:57] <fsphil> http://github.com/jamescoxon/dl-fldigi
[22:57] <fsphil> click 'Downloads'
[22:57] <mattltm> Downloaded
[22:58] Nick change: MrCraig_Away -> MrCraig
[22:58] <fsphil> make sure to run the HAB version, as the received data is uploaded to the tracker
[22:58] <mattltm> V3.20.29 installed
[22:58] <Upu> got it
[22:58] <mattltm> So I just run it?
[22:58] <fsphil> if you receive any image data, it's displayed in the 'View -> SSDV RX' window
[22:58] <fsphil> yep
[22:58] <fsphil> on first run it should ask you some questions
[22:58] <Upu> and the password to allow me to post chase car updates to the tracker ?
[22:59] <fsphil> Upu, I don't think there is a password for that atm
[22:59] <Upu> hmm ok and 2 other things
[22:59] <Upu> PM me your phone number
[22:59] <Upu> and can you send me a picture so I know what I'm looking for
[22:59] <fsphil> http://www.flickr.com/photos/fsphil/5336352159/
[23:00] <fsphil> that's without the lid on
[23:00] <fsphil> it won't be a silver lid, just grey polystyrene - I'd be afraid of the foil blocking the gps
[23:01] <Upu> you guys need more glow in the dark gaffer tape http://picasaweb.google.com/upuaut/201009AVAPayloadConstruction#5520396803283092610
[23:01] <fsphil> yea but this is all shiney :)
[23:01] <Laurenceb_> ok manually splced it around in gedit
[23:01] <Laurenceb_> how to see if it compiles
[23:02] <fsphil> I'll take a better picture tomorrow before launch
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[23:02] <Darkside> \o juxta
[23:02] <Upu> really hope I can go
[23:03] <juxta> morning
[23:03] <mattltm> Lat (DD)??
[23:04] <mattltm> Not good with coords
[23:04] <fsphil> latitude .. how far north you are
[23:04] <mattltm> What format does fldigi want it in?
[23:05] <mattltm> 0° 33' 38'' E
[23:05] <mattltm> or 0.56044 E
[23:05] <juxta> mattltm, decimal, the second one
[23:05] <fsphil> both should work, but decimal is safer
[23:08] <mattltm> Ok - I think im set up. Maybe :)
[23:08] <fsphil> haha
[23:08] <fsphil> lemme see, it should plot a point on the map for you
[23:08] <mattltm> Yup. Im there :)
[23:08] <fsphil> sweet
[23:09] <mattltm> So just leave it running, point the yagi the right way and see what happens at 11am?
[23:09] <fsphil> basically
[23:10] <fsphil> stay in the channel for updates
[23:10] <fsphil> after launch the frequency will likely drop
[23:10] <mattltm> So i will have to retune?
[23:11] <fsphil> yep, it will probably be a few khz lower
[23:11] <mattltm> Ok cool. I'll stay in the channel and be vocal if I have problems :)
[23:11] <fsphil> that's it :)
[23:12] <fsphil> I'll keep the channel updated as the frequency drifts
[23:12] <fsphil> once you've got a signal it'll be easy to keep it
[23:12] <mattltm> cool. Will hadie be sending live images?
[23:12] <fsphil> it will
[23:13] <MrCraig> I'll actually make an attempt to detect a signal but frankly odds are against it without a yagi I reccon.
[23:13] <fsphil> little 320x240 jpegs
[23:13] <mattltm> Can I recive them?
[23:14] <fsphil> dl-fldigi has a window for decoding them
[23:14] <fsphil> "view -> ssdv rx"
[23:14] <fsphil> they're send in packets, if you receive one it'll be decoded there
[23:14] <mattltm> Ah HA!
[23:14] <fsphil> send/sent
[23:14] <mattltm> I like it
[23:15] <fsphil> it's very experimental - I'll be really interested to see how well it works at distance
[23:15] <MrCraig> are there internet based repeaters?
[23:15] <fsphil> globaltuners might have a radio that can receive it
[23:15] <Laurenceb_> i could do a repeated with a cc*
[23:16] <Laurenceb_> *repeater
[23:16] <fsphil> woo, just cleared the launch with ATC
[23:16] <MrCraig> look exploring
[23:16] <Laurenceb_> nice
[23:16] <MrCraig> cool
[23:16] <Laurenceb_> how often will it send a photo?
[23:16] <fsphil> at 300 baud, one every 5 minutes
[23:16] <Laurenceb_> thats slow
[23:16] <fsphil> well it's 300 baud :p
[23:16] <Laurenceb_> whats the format?
[23:17] <fsphil> mostly jpeg, with some tweaks
[23:17] <Laurenceb_> isnt it badly effected by errors?
[23:17] <fsphil> each packet can be decoded independently now
[23:18] <mattltm> very cool
[23:18] <fsphil> so gaps can be handled a bit more gracefully than last time
[23:18] <Laurenceb_> ah
[23:18] <fsphil> the last one just give up if there was any gap in the data
[23:18] <Laurenceb_> doesnt jpeg run some osrt of zip style compression over the entire photo?
[23:19] <Laurenceb_> or am i remembering wrongly
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[23:19] <fsphil> not really
[23:19] <MrCraig> think that's png, runs lhz over the entire image
[23:19] <Laurenceb_> ah
[23:19] <fsphil> the jpeg data is made up of 16x16 blocks
[23:19] <MrCraig> iirc jpeg runs level of detail filters
[23:19] <Laurenceb_> yeah
[23:19] <fsphil> (well, 8x8 blocks - but the colour components are doubled)
[23:19] <SpeedEvil> Laurenceb: JPEG does a DCT of the image, then discards the low-energy bins till it reaches a threshold, then lzws the rest
[23:20] <SpeedEvil> with additional complexity
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[23:20] <Laurenceb_> whats lzws?
[23:20] <MrCraig> fsphil, those blocks are used as a lookup table?
[23:20] <SpeedEvil> liv-zempel-welch
[23:20] <SpeedEvil> IIRC
[23:20] Action: Laurenceb_ googles
[23:20] <fsphil> the blocks contain the frequency data
[23:21] <mattltm> fsphil - USB or LSB?
[23:21] <fsphil> USB
[23:21] <Laurenceb_> ah variable bit lenght i see
[23:21] <mattltm> I think thats the last of my stupid questions for now :)
[23:21] <Laurenceb_> what camera and hardware are you using?
[23:22] <MrCraig> no such thing as a stupid questions - I've been consuming the answers you've been given mattltm - so your questions are useful not only to you :)
[23:23] <fsphil> main camera is an A560, the live camera is...
[23:23] <fsphil> hmm I've lost the link
[23:23] <Laurenceb_> what do you process the images on?
[23:23] <fsphil> but basically a small JPEG camera
[23:23] <Laurenceb_> ah and avr?
[23:23] <fsphil> it spits out the data over a serial port
[23:23] <fsphil> yea, atmega644p
[23:23] <Laurenceb_> neat
[23:24] <fsphil> it takes the jpeg data, rearranges it and transmits it
[23:24] <Laurenceb_> whats the resolution?
[23:24] <mattltm> Ta MrCraig
[23:24] <fsphil> the camera can do 640x480, but because of the slow transfer I'll be using 320x240
[23:24] <Laurenceb_> still quite high res
[23:25] <jcoxon> evening all
[23:25] <fsphil> indeed -- there isn't that much extra detail at 640x480 anyway so it worked out well
[23:25] <fsphil> with a better camera maybe, and a faster baud rate :)
[23:25] <fsphil> g'day jcoxon
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[23:26] <fsphil> there's a test sample here: http://www.sanslogic.co.uk/ssdv/capture-20101004.wav
[23:27] <jcoxon> fsphil, happy with the server setup
[23:27] <fsphil> though the picture was from a much better camera
[23:27] <Laurenceb_> so FSK bytes of data?
[23:27] <jcoxon> as in spacenear.us
[23:27] <fsphil> jcoxon, yep it's looking perfect
[23:27] <jcoxon> good good
[23:27] <fsphil> I think everything's in place now
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[23:28] <fsphil> I've got the antenna to solder up yet, but I think that's it
[23:29] <jcoxon> cool cool
[23:30] <Upu> hey jcoxon if I want to update my location as a chase car on the tracker whats the password ?
[23:31] <jcoxon> see PM
[23:31] <m0dts_Rob> upu where are you ?!
[23:31] <Upu> UK
[23:31] <Upu> about west yorkshire
[23:31] <m0dts_Rob> North ?
[23:32] <m0dts_Rob> ah ok
[23:32] <Upu> yeah
[23:32] <jcoxon> fsphil,i'll clear the tracker before hand - don't worry about that
[23:32] <Upu> about an hour and a half from the possible landing
[23:32] <fsphil> thanks jcoxon, I don't think there'll be any more uploads until I'm at the launch site
[23:32] <m0dts_Rob> may bump into you then if it gets close enouh to me!
[23:32] <Upu> where are you ?
[23:32] <m0dts_Rob> Nr Middlesbrough
[23:33] <Upu> closer to you than it is to me :)
[23:33] <Upu> and my condolences I lived for 4 years in Middlesbrough
[23:33] <Upu> swore I'd never go back
[23:33] <jcoxon> fsphil, how confident are you about launching?
[23:33] <jcoxon> worth an email to GPSL
[23:33] <jcoxon> ?
[23:33] <m0dts_Rob> depends how far you want to travel.. rr on 'boro i live in a small village a few miles outside so not too bad..ha
[23:34] <Upu> oh I lived in the center :)
[23:34] <fsphil> 80% - only concern now is wind speed at the launch site
[23:34] <fsphil> ooh yea good idea
[23:34] <Upu> does look a little on the windy side
[23:34] <fsphil> forecast is for between 6 and 8mph gusts on the ground
[23:35] <fsphil> should be fine as long as that's all it is
[23:35] <fsphil> the payload should reach 100km/h once its over the sea :)
[23:36] <jcoxon> fsphil, you able to email them?
[23:37] <fsphil> jcoxon, I've lurked on the list for a few weeks -- I'll see if I can forward the mail I sent to ukhas@
[23:38] <jcoxon> yeah go for it
[23:38] <jcoxon> mention #highaltitude as well
[23:38] <fsphil> it's a mostly US list isn't it?
[23:38] <fsphil> yea I forgot that on the email
[23:41] <m0dts_Rob> Thanks for the ssdv test file..works great.
[23:42] <mattltm> I just ran it too.Nice image.
[23:42] <jcoxon> fsphil, you going to clear the image gallery :-p
[23:42] <fsphil> lol yea
[23:43] <Upu> ok catch you tommorrow, off to bed night all
[23:43] mattltm-alt (mattltm@92.29.187.128) joined #highaltitude.
[23:43] <fsphil> night Upu!
[23:43] <m0dts_Rob> i'm off line so hopefully not uploaded anything!
[23:43] <m0dts_Rob> gn Upu
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[23:43] <fsphil> it's no worries, I can clear it before launch
[23:43] <MrCraig> gn upu
[23:44] <fsphil> http://www.sanslogic.co.uk/ssdv/live.php
[23:44] <fsphil> sweet :)
[23:44] <fsphil> if only this camera was as good as that
[23:44] <fsphil> the test file is useful too to give an idea of what it sounds like
[23:44] <m0dts_Rob> cool
[23:44] <fsphil> and how the image data will appear in the text window -- basically gibberish
[23:45] <mattltm> Looks like i'm uploading ok then :)
[23:45] <fsphil> but lots of gibberish -- normal static won't come in as quick
[23:46] <m0dts_Rob> is it serial data from a cmos camera module?
[23:48] <fsphil> yep
[23:48] <fsphil> the avr tells it to take a picture, and it spits out a jpeg
[23:53] <MrCraig> right - I'm out. Good luck tomorrow fsphill. night all.
[23:53] MrCraig (MrCraig@host86-166-104-180.range86-166.btcentralplus.com) left irc:
[23:53] <fsphil> thanks MrCraig, g'night
[23:54] <mattltm> what GPS module is Hadie carrying fsphil?
[23:54] <jcoxon> fsa03
[23:55] <mattltm> very nice. I've just been reading about that one :)
[23:55] <jcoxon> mattltm, i'm not too much of a fan any longer of them
[23:55] <jcoxon> weak connection between board and antenna
[23:55] <mattltm> Problems?
[23:55] <mattltm> oh.
[23:55] <jcoxon> not everyone has found this
[23:56] Jasperw (~jasperw@93-97-176-250.zone5.bethere.co.uk) left irc: Quit: Leaving.
[23:56] <mattltm> I must say that from the image it looks like a bad design.
[23:56] <jcoxon> but the chip is awesome
[23:57] <mattltm> Maybe it needs some small tabs on the edges of the board that the antenna casing could clip in to.
[23:57] <mattltm> Sounds good. Can they only be purchaced from the US?
[23:57] <fsphil> yea I suspect the gps will self destruct on landing :)
[23:58] <jcoxon> try sequoia in the UK
[23:58] <jcoxon> mattltm, my favourite is the GPSbee currently
[23:58] <fsphil> though it's well padded in there
[23:58] <jcoxon> same chipset, no dodgey antenna
[23:59] <fsphil> email sent
[23:59] <jcoxon> cool cool
[23:59] <fsphil> ah, there it is - thought it might get caught in moderation
[23:59] <jcoxon> came through
[00:00] --- Sun Jan 9 2011