highaltitude.log.20100213

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[00:09] <jcoxon> crap - its a bad idea to make changes tonight isn't it
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[00:11] <jcoxon> scrap this - no changes
[00:14] <jcoxon> right time to close BH4 up
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[00:15] <SpeedEvil> :)
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[00:37] <jcoxon> its chilly outside
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[00:49] <jcoxon> hi Ziltro
[00:49] <Ziltro> hello
[00:49] <jcoxon> welcome to #highaltitude
[00:49] <Ziltro> thanks. :)
[00:50] <Ziltro> I heard about 'a baloon launch' earlier ... well yesterday now
[00:50] <jcoxon> yeah its tomorrow
[00:50] <Ziltro> my clock says today
[00:50] <Ziltro> assuming it is Saturday?
[00:50] <jcoxon> oh yeah
[00:51] <jcoxon> hehe
[00:51] <jcoxon> good poitn
[00:51] <jcoxon> point*
[00:51] <Ziltro> I thought I'd give it a go at making a recording for the duration of the flight
[00:51] <Ziltro> assuming you call it a flight...
[00:51] <jcoxon> Ziltro, where are you based?
[00:51] <Ziltro> of course I'm busy for the duration it is likely to be within audio range
[00:51] <Ziltro> the receiver is in Poole, south coast.
[00:52] <jcoxon> oh right
[00:52] <jcoxon> fair enough
[00:52] <jcoxon> the issue will be temperature drift
[00:52] <jcoxon> so the freq of the tx will drop down quite a bit
[00:52] <Ziltro> ah, I wonder how wide the filter actually works on that thing...
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[00:53] <Ziltro> I have an Icon PCR1000 in Poole, which can do SSB, and a scanner here which can't. I don't suppose there is any chance of receiving RTTY in AM/FM?
[00:54] <jcoxon> nah, going to need SSB
[00:54] <Ziltro> damn. I have SSB up to 200 MHz here, the PCR1000 is in a cupboard in my parents house. :)
[00:55] <Ziltro> apparently it has a filter choice of 3, 6, 15, 50 & 230.
[00:55] <Ziltro> as th wether they are all allowed in SSB or not, I don't know.
[00:57] <jcoxon> i've never used a pcr1000
[00:57] <Ziltro> it is an odd device. controlled via RS232.
[00:57] <Ziltro> I have connected the audio output into a laptop where I can record.
[00:59] <jcoxon> oooo cool
[00:59] <jcoxon> urgh, hurry up and get a lock
[00:59] <jcoxon> i vow that next time i'm switch back to a ublox module
[01:00] <jcoxon> switching*
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[01:05] <Ziltro> hmm, a manual I found says the PCR1000 can do filter widths of 3 or 6 kHz on SSB, but selecting 15kHz seems to work.
[01:05] <Ziltro> any idea how far the drift might be?
[01:06] <jcoxon> depends on how good my insulation is
[01:06] <jcoxon> i suspect from 434.073 down to around 434.070
[01:06] <Ziltro> 6kHz would just cover that, wouldn't it?
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[01:12] Action: jcoxon is beginning to rant
[01:12] <jcoxon> i hate payloads just before a launch
[01:12] <jcoxon> they never get gps lock
[01:14] <Ziltro> GPS always takes time
[01:14] <Ziltro> especially when you don't want it to
[01:14] <jcoxon> oh yes
[01:15] <jcoxon> just 1 sat
[01:15] <jcoxon> hurry up and get a lock so i can get some sleep
[01:19] <Ziltro> would recording for 3 hours from 1500z be a good sort of timeframe? I have plenty of disk space.
[01:21] <jcoxon> probably from 16:00
[01:22] <Ziltro> ok. I think 3 hours recording is slightly less than 1GB at CD quality, mono. that would leave 26GB free. :)
[01:23] <Ziltro> or did I calculate that wrong? I think I should check.
[01:23] <Ziltro> nope, it won't be anywhere near 27GB.
[01:25] <SpeedEvil> that's about right
[01:27] <Ziltro> great. I'll probably retreiv it saturday evening or sunday sometime as my parents have ADSL bandwidth limits.
[01:27] <jcoxon> oooo 2 sats
[01:27] <Ziltro> haha it is in mega-slow mode then
[01:28] <Ziltro> I swear my GPS device knows I'm watching it
[01:29] <jcoxon> finally a lock!
[01:29] <Ziltro> yay!
[01:29] <Ziltro> I say that, I knew nothing of this project a few hours ago. :)
[01:30] <Ziltro> someone announced it at the Poole radio Society meeting earlier on.
[01:30] <jcoxon> oh cool
[01:30] <jcoxon> tis a sub project which i'm working on
[01:31] <jcoxon> http://www.pegasushabproject.org.uk/wiki/doku.php/missions:ballasthalo:ballasthalo4
[01:31] <Ziltro> so there might be people from the area listening out
[01:31] <jcoxon> great
[01:33] <jcoxon> damn damn damn
[01:33] <jcoxon> forecast has shifted a bit
[01:34] <Ziltro> hmm I think I'm getting stuttering with my recording. CD quality may be too good...
[01:34] <Ziltro> or not. original .wav is ok, .flac is not. that's not supposed to be.
[01:35] <Ziltro> nope, Audacity was doing the stuttering. flac is fine.
[01:38] <Ziltro> I think I can go to bed now. I have 'at' set up to do the recording just in case I forget, and it seems to be working. we'll see what happens. :)
[01:39] <Ziltro> I'll have to read up on the project more when I'm awake. Something which requires tying a radio transmitter and GPS to a baloon can't not be interesting. ;)
[01:50] <natrium42> hrm, jcoxon, could you check my way of calculating horizon?
[01:50] <jcoxon> i can have a look
[01:50] <jcoxon> but i'm having an big debate with myself
[01:50] <jcoxon> the forecast seems to have shifted
[01:51] <jcoxon> very similar flight path to last time
[01:51] <jcoxon> very similar
[01:51] <natrium42> is that good or bad?
[01:52] <natrium42> http://en.wikipedia.org/wiki/Horizon
[01:52] <natrium42> using the sqrt(12.756*height_meters) formula
[01:53] <natrium42> getting 437km for 15000m altitude
[01:53] <natrium42> does that sound right?
[01:55] <jcoxon> yeah i think so
[01:58] <natrium42> k
[01:59] <natrium42> it just looks so big --> http://spacenear.us/tracker/index2.php
[01:59] <natrium42> the UK could fit in it
[02:00] <jcoxon> yeah thats a little big
[02:00] <natrium42> but that's 437 km radius, i checked
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[03:18] <juxta> natrium42: that new balloon icon looks awesome, well done!
[03:20] <natrium42> thx
[03:21] <natrium42> it's a WIP, so i will be breaking it all the time until launch
[03:21] <jcoxon> crap - i'm also trying to fix the tracker for wb8elk
[03:22] <natrium42> is he launching?
[03:22] <jcoxon> yeah tomorrow
[03:22] <jcoxon> and has been playing with dl-fldigi
[03:24] <natrium42> are you using a separate tracker?
[03:25] <jcoxon> no :-)
[03:25] <jcoxon> will that be an issue?
[03:25] <juxta> natrium42: WIP?
[03:25] <natrium42> juxta, work in progress
[03:25] <juxta> oh
[03:25] <juxta> nvm, I got it, haha
[03:26] <natrium42> jcoxon, i see, muti-launches eh? :)
[03:26] <jcoxon> well wb8elk is a key balloon guy
[03:26] <jcoxon> really want him onboard with dl-fldigi etc
[03:26] <natrium42> juxta, right now it shows alert boxes when you move cursor over polyline
[03:26] <juxta> natrium42: yeah I noticed ;p
[03:26] <juxta> '0'
[03:26] <natrium42> jcoxon, i better finish the new stuff then :P
[03:27] <jcoxon> hehe
[03:27] <jcoxon> i better fix this damn payload
[03:29] <natrium42> i wish there was a cure for sleep
[03:29] <natrium42> i wish i had it for you, jcoxon
[03:29] <natrium42> but alas no..
[03:30] <jcoxon> oh i'm still going well
[03:30] <juxta> jcoxon probably has access to a few things at school I suppose ;p
[03:31] <jcoxon> hehe, just on endogenous adrenaline right now
[03:31] <natrium42> the question is, if they catch you doping, is it going to invalidate the results?
[03:36] <jcoxon> hehe
[03:48] <jcoxon> natrium42, wooohoo , dumping ballast cause we are <2.0
[03:56] <jcoxon> right sleep
[03:56] <jcoxon> tis 4am
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[08:04] <jcoxon> morning
[08:24] <juxta> morning jcoxon
[08:28] <jcoxon> hey juxta
[08:33] <natrium42> hi jcoxon & juxta
[08:34] <jcoxon> hey natrium42
[08:37] <jcoxon> natrium42, is it okay if i clear the tracker?
[08:37] <natrium42> yeah
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[08:38] <natrium42> hmm, one sec
[08:38] <natrium42> testing chrome support
[08:39] <natrium42> ok
[08:39] <natrium42> now you can clear it again :P
[08:42] <jcoxon> done
[08:42] <natrium42> kk
[08:43] <natrium42> btw, in emergency, old tracker is at index1.php
[08:44] <jcoxon> oh is this the new tracker?
[08:44] <natrium42> yep
[08:44] <jcoxon> cool cool
[08:44] <jcoxon> wb8elk won't be using nearspace
[08:44] <natrium42> alright
[08:45] <jcoxon> we need to make some adjustments to the system (well rob and I do
[08:45] <jcoxon> )
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[09:07] <jcoxon> oh natrium42 in theory its Total Ballast Left rather then Dropped
[09:08] <natrium42> ah
[09:08] <natrium42> i will fix it
[09:08] <natrium42> just adding list of callsigns that received a location
[09:08] <natrium42> rob sends me the info :)
[09:09] <jcoxon> same flight forecast this morning
[09:11] <natrium42> k
[09:12] <natrium42> launch still on?
[09:12] <jcoxon> yeah
[09:12] <jcoxon> we'll be at 16km alt
[09:12] <jcoxon> and have precautions in place to raise the ascentrate if necessary
[09:12] <jcoxon> and need to be careful with calculating free float at launch anyway
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[09:31] <jcoxon> wow the french hams are rallying
[09:31] <natrium42> :D
[09:31] <natrium42> jcoxon, added list of receivers for each position
[09:32] <natrium42> just testing atm before i commit
[09:32] <jcoxon> no worries
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[09:54] <natrium42> k, i am done
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[09:57] <natrium42> jcoxon, going to catch some sleep
[09:58] <jcoxon> okay cya later
[09:59] <jcoxon> morning m0blf
[09:59] <natrium42> nite all
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[09:59] <m0blf> jcoxon, Hi, and to everyone else
[10:00] <m0blf> It's Dom, one of the CUWS guys here, James. I'm in Plymouth atm, so probably too far West to help today, I think?
[10:00] <jcoxon> hmm yeah, the forecast has shifted a bit more east
[10:02] <m0blf> OK. I might be able to drum up some help in France for you, though. What's needed to decode the telemetry?
[10:02] <jcoxon> 70cm ssb
[10:02] <jcoxon> but if you want to autoupload to the server you use dl-fldigi
[10:02] <jcoxon> http://code.google.com/p/dl-fldigi/
[10:03] <jcoxon> http://ukhas.org.uk/guides:tracking_guide
[10:04] <m0blf> That's the page I was looking for! You might link it from the BallastHalo 4 page :)
[10:05] <jcoxon> yeah thats a good idea
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[10:05] <rjharrison> ping Randomskk
[10:06] <rjharrison> ping anyone on radio in cambridge with access to GBSPY
[10:08] <Randomskk> hi
[10:08] <Randomskk> GBSPY or GB3PY?
[10:08] <rjharrison> Randomskk 3 :)
[10:09] <Randomskk> listening now
[10:09] <rjharrison> If you give me your call sign I'll give you a shout
[10:09] <Randomskk> M0RND
[10:09] <Randomskk> gotta run in 5min though
[10:11] <rjharrison> cool
[10:11] <rjharrison> me too
[10:11] <rjharrison> breakfast
[10:11] <rjharrison> will chat later
[10:11] <rjharrison> 73's
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[10:13] <Randomskk> rjharrison: when you're back: will be on the radio tracking the launch but probably not at the launch site itself
[10:13] <Randomskk> also your callsign is somewhat obvious in retrospect :P
[10:16] <Randomskk> my sister is coming up to visit cambridge and has decided she would be very annoyed if I ran off to EARS for the 1500 launch :P
[10:17] <jcoxon> hehe its okay
[10:17] <Randomskk> but she should be gone by 3 anyway so tracking shouldn't be an issue.
[10:18] <Randomskk> also for the first hour or so my whip should be able to pick it up practically unattended besides tuning the radio when it drifts
[10:20] <jcoxon> okay cool
[10:21] <LazyLeopard> Where's the latest track prediction?
[10:22] <jcoxon> i'll put it up
[10:22] <LazyLeopard> Cheers. ;)
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[10:23] <hsmith> Best wishes for Ballast Halo 4 Launch Today EARS, Camb, UK
[10:23] <jcoxon> LazyLeopard, its shifted towards you, though perhaps not in a good way :-)
[10:23] <jcoxon> little close to london etc
[10:26] <jcoxon> http://www.pegasushabproject.org.uk/wiki/doku.php/missions:ballasthalo:ballasthalo4#launch_plans
[10:27] <jcoxon> though the bit in the M25 will be ~16000m
[10:29] <m0blf> jcoxon: That new prediction looks a lot further East to me, and takes you well away from most of the hams I know in France
[10:32] <jcoxon> its causing me some issue
[10:32] <jcoxon> to tell the truth
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[10:33] <jcoxon> we've got a few hams along the flight path
[10:35] <G8DSU> you've got one here who is within 100m of the exact overhead! The predicted track clips the far end of my road!
[10:35] <G8DSU> Pity its cloudy, or I'd be able to eyeball it.. :-)
[10:36] <jcoxon> i wish it was a bit more west
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[10:37] <jcoxon> the forecast is till only 00z
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[10:38] <jcoxon> so we've still got 06Z and 12Z to go
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[10:48] <G8DSU> And its probably not worth 2nd guessing the next forecast, but there might be a trend setting in for a further shift to the east :-( . Guess its all a lot more complex so fingers crossed that's not so.
[10:50] <LazyLeopard> Presumably comes a point it's too far east... :/
[10:53] <jcoxon> it'll go where it wants
[11:01] <jcoxon> right time to go
[11:01] <jcoxon> bbl
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[11:21] <rjharrison> fdfd
[11:22] Nick change: rjharrison -> rharrison-2e0rjh
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[11:33] <G3VZV> test ping only
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[11:35] <MikeMc68> morning
[11:38] Action: SpeedEvil is unsure if it's morning.
[11:39] <MikeMc68> feel like crap after not arriving in Cheshire till 3.30am this morning
[11:39] <MikeMc68> 7.5 hours to drive 250 miles
[11:40] <MikeMc68> ridiculous
[11:45] <MikeMc68> everyone set for the launch?
[11:46] <SpeedEvil> For small values of set.
[11:47] <G3VZV> nope - still making up a lead from the rx to sound card
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[11:51] <ei7ig_laptop> hope so
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[11:56] Nick change: edmoore -> ed_M0TEK
[11:57] <rharrison-2e0rjh> Yo ed_M0TEK
[11:57] <ed_M0TEK> hi rharrison-2e0rjh
[11:57] <rharrison-2e0rjh> I have got echolink to the repeater
[11:57] <ed_M0TEK> so i am awake and surprisingly alert
[11:57] <rharrison-2e0rjh> So will in radio contact later
[11:57] <ed_M0TEK> is james en-route? he is not answering phone
[11:57] <rharrison-2e0rjh> yepo
[11:57] <rharrison-2e0rjh> yes
[11:57] <ed_M0TEK> GB3PY is going offline today iirc
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[12:01] <ed_M0TEK> right, bbl
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[12:14] <Laurenceb> whos launching?
[12:14] <M0VFC> (most delayed reply ever:) yes, GB3PY will be off-site, temporarily at least; with a bit of luck it'll be back on later today, but not sure when
[12:14] <Laurenceb> oh ballast halo4?
[12:14] <Laurenceb> nice
[12:15] <Laurenceb> good luck
[12:15] <MikeMc68> Did I miss something?
[12:15] Action: Laurenceb afk
[12:21] <SpeedEvil> not yet
[12:21] <SpeedEvil> 15:00
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[12:32] <M0VFC> D'oh, snow up here in Cambs now!
[12:39] <junderwood_> 00Z forecast shows it passing about 0.5 mile west of LHR
[12:40] <MikeMc68> No snow above the clouds ;)
[12:45] <M0VFC> @MikeMc68: true, but *I* won't be above the clouds, sadly :-p
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[12:50] <russss> ah, the old buzz heathrow flightpath again.
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[12:57] Nick change: asimmons_ -> imipak
[13:00] Nick change: alexelder -> aelder
[13:02] <rjmunro> Anyone going to be able to Ustream (or similar) the launch?
[13:04] <SpeedEvil> I think rocketboy
[13:04] <SpeedEvil> If I diddn't miss the context
[13:05] <rjmunro> Cool. And everything is still looking on schedule?
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[13:06] <eam52> it's not great in cambridge
[13:06] Nick change: eam52 -> edmoore
[13:06] <edmoore> wet snowy slush
[13:07] gb73d (gb73d@80-42-64-68.dynamic.dsl.as9105.com) joined #highaltitude.
[13:08] <russss> as per usual, no snow in London!
[13:09] <gb73d> is the launch still on for 1500 today ?
[13:10] <russss> I haven't heard anything to the contrary yet
[13:10] sbasuita (~sbasuita@unaffiliated/drebellion) joined #highaltitude.
[13:10] <russss> however it's snowing in cambridge and the flight path currently takes us very close to Heathrow. Again.
[13:10] <gb73d> looks like it may be cancelled then
[13:11] <edmoore> perhaps not
[13:11] <russss> we'll see. I think the latest prediction is still based off the 06Z weather data.
[13:11] <edmoore> the final decision will be based off the 06
[13:11] <russss> and snow shouldn't really be a constraint I guess.
[13:11] <gb73d> see the winds on here
[13:11] <gb73d> http://www.xcweather.co.uk/
[13:12] <russss> that's ground level wind though
[13:12] <gb73d> yes well i thiort it might help
[13:13] <edmoore> not really
[13:13] <edmoore> cuspaceflight.co.uk/predict
[13:13] <gb73d> well if the wind at launch is bad they wont need higher levels
[13:14] <edmoore> not really - the high altitude winds count
[13:15] <rjmunro> Why is heathrow airport a problem, but Luton airport fine?
[13:16] <russss> I'm not sure there's really much difference. It should be at a high enough altitude by then not to make any difference
[13:17] <rharrison-2e0rjh> edmore you near a radio and capable on gb3py
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[13:24] <M0VFC> @rharrison-2e0rjh PY is now off-air - GB3PI is on, but not echolink enabled
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[13:24] <rharrison-2e0rjh> thanks M0VFC
[13:25] <M0VFC> There is MB7IGC, a simplex link, though: http://www.mb7igc.co.uk/
[13:26] <hsmith_> A new station at 51.34 0.126 (Purley) using ft790r and moxon will try to track BH4 if the launch goes ahead - temp callsign hsmith
[13:30] <SpeedEvil> :)
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[13:32] <hsmith_> Question from newbie: I've pluged an audio cable into speaker socket of ft790r - and then into computer, but now cannot hear signal. Can I configure so hear the signal through the computer speakers in some way?
[13:33] <SpeedEvil> can the computer 'hear' the signal - does dl-fldigi pick it up?
[13:33] <SpeedEvil> try playing with the audio mixer controls
[13:34] <rharrison-2e0rjh> hsmith_ negative
[13:34] <hsmith_> dlfldigi is hearing the radio for sure
[13:34] <sbasuita> hsmith_, yes, if your operating system has the features this is possible
[13:34] <M0VFC> hsmith_: sometimes you can half-insert the jack plug so it doesn't quite cut the speaker :-p
[13:34] <russss> heh
[13:34] <hsmith_> running xp
[13:34] <M0VFC> an ugly hack to be sure, but it is possible with care
[13:34] <sbasuita> M0VFC, great for enhancing the weak balloon signal ;)
[13:35] <M0VFC> sbasuita: it's normally fine in terms of audio quality - you normally only get one channel, but that's not an issue; it just doesn't quite break the "I have something inserted" contact on the socket
[13:35] <M0VFC> anyway, heading out to meet James on site - BBL on a 3G connection hopefully
[13:35] <hsmith_> canno get the 'plug half in' solution to work
[13:35] <SpeedEvil> Try playing with the mixer anyway
[13:35] <sbasuita> hsmith_, yeah mess about with your audio mixer
[13:36] <hsmith_> will do
[13:37] <hsmith_> cannot see anything in the mixer wrong
[13:37] <hsmith_> may have to split the audio path itself and plug in another speaker
[13:37] <DanielRichman> hsmith_, open the standard windows xp volume control
[13:38] <DanielRichman> hsmith_, under Options, top left, one of those items will open a window with two Radio Buttons, one marked Recording, one Playback.
[13:38] <russss> I believe the "monitor mic input" feature is dependent on your sound card drivers.
[13:39] <russss> so you may not have it.
[13:39] <DanielRichman> hsmith_, provided dl-fldigi is picking something up (if you can see colours in the waterfall, yellow, etc) you can see which of the channels is "selected" under Recording, by toggling on the recording button and clicking ok. There will be a line along the bottom saying "Select [ ]"
[13:39] <DanielRichman> hsmith_, once you know that toggle back to Playback, then in the box below (before clicking [OK] out of the options window) make sure that the channel that was selected for Recording is enabled in playback
[13:39] <DanielRichman> hsmith_, once you click ok from that it'll probably be muted; unmute, hope for the best
[13:40] <hsmith_> I current see blue noise in waterfall
[13:41] <hsmith_> I currently see blue noise in the waterfall
[13:42] <hsmith_> Forgetting about the audio card problem for the time being, may I ask another question
[13:42] <DanielRichman> hsmith_, try the above ^^
[13:43] <G8DSU> With Windows 7 I'm able to select the option of listening to the microphone (it warns of possible feedback, which obviously won't happen in this case) Works OK so sure it will in XP when you find the button!
[13:43] <hsmith_> Once I get signal, and position the red bar, do I need to click Tx or Rx to get it to decode and transit to Internet, or does that happen automatiucally
[13:43] <DanielRichman> it will begin automatically
[13:43] <DanielRichman> provided it is all setup in the right mode (RTTY, etc. Should happen automatically if you select the payload in dl-fldigi)
[13:45] <hsmith_> set, I set the payload
[13:45] <sbasuita> hsmith_, you'll see a status line at the bottom indicating its uploading strings
[13:46] <hsmith_> presumably it won't upload strings until it gets some?
[13:47] <sbasuita> hsmith_, that's correct
[13:47] <hsmith_> thx
[13:47] <sbasuita> hsmith_, although i think it 'logs in' to the tracker... dunno if it tells you about that though
[13:48] <hsmith_> have not yet managed to get the mic input to pass thru to speakers
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[13:49] <sbasuita> hsmith_, tried turning up all the different levels in the sound mixer?
[13:49] <russss> yeah you should be able to see your login show up here http://www.robertharrison.org/listen/view.php?reg=/ZZ/
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[13:49] <gb73d> gb73d (ham call M1ELK, nr Reading Berks) is tuned in with Multipsk running and using a Yaseu Vr5000 scanner with 446mhz loft mounted gp with jim 75 20db preamp inline at the antenna
[13:50] Nick change: Oliver__ -> OliverNS
[13:50] <gb73d> good luck to launch team
[13:50] <rharrison-2e0rjh> Any news from cambridge yet?
[13:50] <hsmith_> Hi OliverNS
[13:50] <rharrison-2e0rjh> jcoxon on site?
[13:50] <OliverNS> hi
[13:50] <gb73d> yes see last tweet
[13:53] <rharrison-2e0rjh> gb73d Yep got it
[13:53] <rharrison-2e0rjh> Thanks
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[14:01] <djellison> How's it looking for 1500?
[14:02] <russss> not much news from here
[14:03] <hsmith_> Question about configuring Long/Lat in digi
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[14:04] <rharrison-2e0rjh> Hi steve are you on site?
[14:04] <ei7ig_laptop> lat/long in decimal degrees
[14:05] <ei7ig_laptop> 52.xxxxx -005.xxxxx
[14:05] <ei7ig_laptop> etc
[14:05] <SpeedEvil> north, then west
[14:05] <ei7ig_laptop> make sense hsmith_
[14:05] <ei7ig_laptop> ?
[14:06] <djellison> It's East isn't it - so neg numbers are west.
[14:06] <SpeedEvil> go to google maps - scroll and zoom to your location
[14:06] <SpeedEvil> http://maps.google.com/?ie=UTF8&hq=&hnear=Glenrothes,+Fife+KY7+6LA,+United+Kingdom&ll=56.215991,-3.11212&spn=0.012218,0.023818&t=h&z=15
[14:06] <ei7ig_laptop> -005 is 5 Degrees west
[14:06] <SpeedEvil> then click 'link' - and copy url
[14:06] <SpeedEvil> the above would be entered as 56.215 -3.112
[14:07] <gb73d> where can i get software to decode the RTTY ?
[14:07] <russss> gb73d: http://code.google.com/p/dl-fldigi/
[14:07] <SpeedEvil> http://code.google.com/p/dl-fldigi/
[14:08] <gb73d> thank you kindly
[14:09] <G3VZV> yup my location is wrong on the map for this reason - G3VZV is actually nr Milton Keyens..am trying to correct it:)
[14:09] <russss> I think dl-fldigi only sends your location to the server once every 15mins unless you restart it, fwiw
[14:09] <G3VZV> thanks noted...
[14:12] pjm (~pjm@host81-146-71-253.btremoteinternet-dsl.bt.net) joined #highaltitude.
[14:12] <pjm> Hello, its M0EYT Paul here, down in Poole
[14:12] <SpeedEvil> Hello.
[14:13] <RocketBoy> http://www.ustream.tv/channel/xaben
[14:14] <pjm> this balloon experiment tx's on 434.075 in 50bd rtty?
[14:15] <pjm> i've only seen a string of convoluted emails on the topic
[14:15] <russss> yeah that's correct I believe
[14:15] <SpeedEvil> http://wiki.ukhas.org.uk/guides:tracking_guide
[14:15] <pjm> ok i will set up RX
[14:15] <SpeedEvil> Also http://code.google.com/p/dl-fldigi/
[14:15] <gb73d> ive got fldigi setup now
[14:15] <pjm> ah hello ;-)
[14:15] <G8DSU> Ustream looking good!
[14:16] <SpeedEvil> dl-fldigi is a patch that auto-submits information to the balloon tracker - to do distributed listening
[14:16] <gb73d> welcome pj, i neva hrd of freenode but the channles list is 19000 rooms !
[14:17] <russss> freenode is mostly software/open source geekery
[14:17] <pjm> gb73d yes i'm on #emc cnc controller and #gpsd - gpsdaemon etc
[14:17] <G8DSU> Asking a bit much perhaps, but is there sound with the ustream video?
[14:17] <gb73d> wow
[14:17] <SpeedEvil> ##electronics ##hamradio maybe useful too
[14:18] <gb73d> gonna exp-lore geeks universe
[14:18] <gb73d> wowee
[14:19] <gb73d> will tune em in after todays BONANZAAAAAAAAAAAAA !
[14:20] <gb73d> this will be my 1st uhf balloon if i get it
[14:20] <gb73d> only heeard one other knoxville on 10mhz cw
[14:20] <gb73d> a few yaers back
[14:20] <pjm> wow i must make sure my rx works below a GHz, never use it at DC
[14:20] <gb73d> ;)
[14:24] <hsmith_> I've now got the Long/Lat right on the listeners map, hsmith is just above Banstead
[14:25] <imipak> ustream offline, temporarily?
[14:25] <russss> Who's in the Bering Sea, is what I want to know.
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[14:25] <russss> ah, we have a station online in France now, splendid
[14:26] <ei7ig_laptop> ustream?
[14:26] <ei7ig_laptop> where?
[14:26] <russss> http://www.ustream.tv/channel/xaben
[14:26] <russss> it was the launch site
[14:26] <russss> but it's stopped
[14:26] <ei7ig_laptop> ok
[14:28] Action: G3VZV will get his latitude correct soon(ish)
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[14:29] <LazyLeopard> mental note: it helps if the radio and computer are _connected_ *eyeroll*
[14:30] M0VFC (~rob@212.183.140.32) joined #highaltitude.
[14:31] <russss> we have telemetry
[14:31] <russss> http://spacenear.us/tracker/
[14:32] <SpeedEvil> :)
[14:33] <hsmith_> still on ground presumably?
[14:33] <G8DSU> Any way to get rid of the track from London on the tracker display?
[14:33] <russss> it's not there for me
[14:34] <hsmith_> I can see a balloon marker on the tracker
[14:34] <SpeedEvil> http://www.robertharrison.org/listen/view.php
[14:34] <gb73d> how do i get my call to appear on the tracker map ?
[14:34] <SpeedEvil> gives the 'raw' data
[14:34] <gb73d> i have fl digi open
[14:35] <russss> gb73d: make sure you entered your lat/long in decimal format
[14:35] <SpeedEvil> Scroll down to the end - and see the tracked data recieved.
[14:35] <M0VFC> OK, on site now
[14:35] <gb73d> tnx
[14:36] <SpeedEvil> G8DSU : ZZ,G8DSU,2010-02-12+22:04:06,51.443011,-0.335153,FT-817ND,MOBILE+WHIP M6JCX : ATLAS,21,22:3:38,51.4981,-0.0530,4,6,-0.1;0;0;17;20;16;49;500;0*4C
[14:36] <SpeedEvil> first line is a station declaration
[14:36] <djellison> That'll just be james powering the thing up
[14:36] <SpeedEvil> second is a recieved line from the ablloon
[14:37] <SpeedEvil> well - payload
[14:37] <Randomskk> back
[14:37] <gb73d> do i have to enter an email ?
[14:38] <Randomskk> what freq is the main transmitter on for today?
[14:38] <pjm> presumably the fldigi client only talks to the server once a valid sentance has been received, and then updates the map with users info?
[14:38] <hsmith_> question: At what altitude do you think the balloon will have to be, for me to pick up its tiny 10mw from a moxon on a 790R South of London?
[14:38] <russss> hsmith_: it's purely a line-of-sight issue
[14:38] <SpeedEvil> pjm: it transmits balloon info once it gets it. it transmits station information every few mins
[14:38] <SpeedEvil> hsmith_: what's range?
[14:39] <russss> depends on your local horizon
[14:39] <M0VFC> rharrison-2e0rjh: ping tis james
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[14:39] <hsmith_> I understand
[14:39] <M0VFC> something is up
[14:39] <M0VFC> with the tracker
[14:39] <hsmith_> oops!
[14:40] <SpeedEvil> moV: how\?
[14:40] <rharrison-2e0rjh> M0VFC is there
[14:41] <rharrison-2e0rjh> Looks ok to me
[14:41] <SpeedEvil> you need to zoom out a little till the map is not blank if you meant htat
[14:41] <Randomskk> listening on BH4's freq from selwyn, estimated time still 1500?
[14:41] <M0VFC> Randomskk: "maybe"
[14:41] <russss> heh
[14:42] <G8DSU> Sorted: 'delivery' track from London shows on http://www.robertharrison.org/tracker/map.php?height=900 but now looking at http://spacenear.us/tracker/ with the pretty balloon icon and no track ...yet!
[14:42] <SpeedEvil> Tehre is a track
[14:42] <SpeedEvil> But only if you zoom way in
[14:42] <russss> heh yeah
[14:43] <G8DSU> :-)
[14:43] <SpeedEvil> Also - if you zoom out - you will see a beautiful green ring.
[14:43] <hsmith_> tracker fine for me
[14:44] <SpeedEvil> Which indicates the optical horizon. (assuming a spherical earth)
[14:44] <russss> aha
[14:44] <SpeedEvil> s/optical/geometrical/
[14:44] <SpeedEvil> Assuming a spherical earth at sea level
[14:44] <russss> also presumably it's the horizon at sea level
[14:45] <russss> now you made me want to grab some elevation data and do it better.
[14:45] <G8DSU> Magic! In the unlikely event of a clear sky, I'll know whether to go out and take a look!
[14:45] <SpeedEvil> SRTM would be awesome. :) But is probably overkill.
[14:46] <SpeedEvil> http://srtm.csi.cgiar.org/SELECTION/inputCoord.asp
[14:46] <gb73d> i dun it !
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[14:46] <SpeedEvil> I can't think of any way to work out range nicely from elevation raster data
[14:47] <MikeMc68> evening
[14:47] <SpeedEvil> other than the obvious of 'raytracing' 360 (say) beams
[14:48] <rharrison-2e0rjh> ok all the trackers are working now
[14:48] <ei7ig_laptop> ustream is showing something
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[14:49] <RocketBoy> http://www.ustream.tv/channel/xaben on again
[14:50] <G3VZV> audio now on irc
[14:50] rjmunro_ (~chatzilla@87.127.91.51) joined #highaltitude.
[14:50] <SpeedEvil> http://www.ustream.tv/channel/xaben
[14:50] <SpeedEvil> oops
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[14:50] bhungy (~bhungy@unaffiliated/bhungy) joined #highaltitude.
[14:50] <SpeedEvil> hmm - intermittent.
[14:50] Action: SpeedEvil wonders if that's his DSL
[14:50] <rharrison-2e0rjh> Cool needs focusing
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[14:51] <SpeedEvil> Is it cutting in and out for others?
[14:51] <MikeMc68> no
[14:51] <MikeMc68> works fine for me
[14:51] <ei7ig_laptop> no
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[14:52] Nick change: rjmunro_ -> rjmunro
[14:52] <SpeedEvil> k
[14:52] Nick change: alexelder -> aelder
[14:55] <SpeedEvil> Ah.
[14:55] <SpeedEvil> My DSL is now going at 128k.
[14:55] Action: SpeedEvil sighs.
[14:55] <rharrison-2e0rjh> Fine for me too
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[14:55] <rharrison-2e0rjh> no balloon inflated yet so going to be a while yet
[14:56] <rharrison-2e0rjh> 15:20 at best
[14:57] <Randomskk> what're you listening on?
[14:57] Action: SpeedEvil reroutes.
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[14:58] <gb73d> is usb best ?
[14:58] rjmunro (~chatzilla@87.127.91.51) joined #highaltitude.
[14:59] <SpeedEvil> gb73d: neither is inherently better if you've flipped the right switch in fldigi
[14:59] <SpeedEvil> and have it tuned to the right freq
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[14:59] <gb73d> ok
[14:59] djellison (~djellison@78-86-234-136.zone2.bethere.co.uk) joined #highaltitude.
[14:59] <LazyLeopard> Hi Doug.
[15:00] <djellison> HI :)
[15:00] <LazyLeopard> <-- Rick from OAS.
[15:00] <djellison> Still sorting myself out here - but should be better prepared than last time.
[15:00] <djellison> Ahh - Hi Rick !
[15:00] <Randomskk> rharrison-2e0rjh: are they on the repeater?
[15:01] <hsmith_> btw - pleasure to meet u all
[15:02] <M0VFC> Inflating now
[15:02] <M0VFC> windy here!
[15:02] Action: LazyLeopard has a slightly wobbly mast outside the window. Yagi adjustment to be performed using a four foot pole poked out of said window.
[15:02] <M0VFC> rharrison-2e0rjh: I see valid data in fldigi, but I don't see it appearing under M0VFC at http://www.robertharrison.org/listen/view.php
[15:03] <M0VFC> any thoughts?
[15:03] <Randomskk> what're we getting valid data on?
[15:04] <Randomskk> should I be pointing a yagi towards EARS?
[15:04] <M0VFC> Randomskk: still at ground level so a few minutes yet, but launch soon I hope
[15:04] <Randomskk> ah okay, are you onsite now?
[15:04] <M0VFC> yes
[15:05] <rharrison-2e0rjh> Randomskk point away
[15:05] <Randomskk> is N52 15.068 W0 05.561 correct?
[15:06] <SpeedEvil> Neat.
[15:06] <SpeedEvil> ustream works from my phone too.
[15:06] <SpeedEvil> See you all in the toilet.
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[15:06] <russss> :/
[15:06] <rharrison-2e0rjh> looks very windy
[15:06] <Randomskk> http://www.ears.org.uk/launches/site/index.shtml ?
[15:07] <rharrison-2e0rjh> yep that will do
[15:07] <hsmith_> PARS flies rockets from EARS (http://www.fairdene.com/pars/) can be windy
[15:07] <gb73d> standing by
[15:08] <M0VFC> rharrison-2e0rjh - can you confirm this looks valid to you: $$ATLAS,152,15:7:27,52.2514,-0.0925,55,5,0.0;0;0;10;14;5;92;500;0*55
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[15:09] <lnkz> hey. (S/E France here)
[15:09] <hsmith_> Welcome France
[15:09] <M0VFC> lnkz: hi!
[15:09] <Twiner> Hey! :D
[15:09] <Randomskk> nah, can't hear anything yet
[15:10] <Randomskk> though EARS is not in the most convenient location for my northerly window :P
[15:10] <MikeMc68> lol LazyLeopard - nice technique
[15:10] <Twiner> The balloon is sure taking a beating in the wind. :/
[15:11] <hsmith_> Hope you guys on site get some pics of the launch
[15:11] <djellison> Looks evil windy at EARS
[15:13] <gb73d> ivw goit a carriere on the display
[15:14] <gb73d> could be spurious
[15:15] <russss> woah
[15:15] <russss> bad datapoint
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[15:15] <gb73d> looks like a 2mph northerly
[15:16] <gb73d> 20mph
[15:16] <russss> rharrison-2e0rjh: bad datapoint from you...
[15:16] <russss> 2E0RJH : ATLAS,26,23:12:44,51.3920,0.5290,-46,4,0.0;0;0;25;26;23;43;500;0*66
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[15:17] <juxta> is a balloon up atm?
[15:17] natrium42 (~alexei@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) joined #highaltitude.
[15:17] <MikeMc68> no
[15:17] <Randomskk> which flight XML do I want on dl-fldigi?
[15:17] <juxta> ah right
[15:17] <gb73d> is comimng soon
[15:17] <junderwood_> Balloon is nearly inflated
[15:17] <junderwood_> http://www.ustream.tv/channel/xaben
[15:18] <natrium42> hi all
[15:18] <natrium42> ooh
[15:18] <Randomskk> atlas?
[15:18] <russss> yeah atlas
[15:18] <Randomskk> cool
[15:18] <juxta> ahh the weather looks a bit ugly
[15:19] <gb73d> fantastic video feed
[15:19] <M0VFC> ok about to release
[15:19] <russss> I'm glad I'm inside and not up on my roof, put it that way.
[15:19] <djellison> The weather can most kindly be described as 'a bit Heathrowey'
[15:19] <Twiner> Launch imminent! :D
[15:19] <Randomskk> got my whip up and radio tuned
[15:19] <juxta> yeah the video is pretty good!
[15:19] john (~f1omz@ARouen-151-1-123-251.w90-17.abo.wanadoo.fr) joined #highaltitude.
[15:19] <djellison> Time to drop Ethanol over France
[15:19] <juxta> quite a few people there
[15:20] Nick change: john -> Guest90725
[15:20] <djellison> Hope they really do get 2m/sec
[15:20] <DanielRichman> Hmm. External HDD has been in Garage; wouldn't work earlier (click of death) but now (appears) fine - I imagine some components just had to expand back to their normal size (cold outside)... or should I be concerned for its life?
[15:20] <djellison> She's away
[15:20] <Randomskk> DanielRichman: not a bad time to back it up
[15:20] <russss> DanielRichman: I'd back it up
[15:21] <DanielRichman> Yah, that's the thing. It is the backup
[15:21] <Randomskk> 434.075 right?
[15:21] <russss> I dunno if the tracker will work if it's got that old datapoint...
[15:21] <juxta> heh, that rose much slower than mine which I overilled
[15:21] <DanielRichman> Whoa there we go; has died again - took longer this time, I guess it was warmer :o
[15:21] Nick change: Guest90725 -> jancyve
[15:22] <djellison> Hard to tell what the ascent rate is like when the ground winds are so strong
[15:22] <juxta> will the tracker be cleared of the old points?
[15:22] <russss> that wasn't an old point
[15:22] <russss> or at least, it only just got received.
[15:23] <juxta> the one near catham I mean
[15:23] <hsmith_> Has BH4 been released?
[15:23] <juxta> hsmith_: yeah
[15:23] <russss> yeah that only just got submitted somehow
[15:23] <russss> but it's erroneous
[15:23] <G3VZV> short burst of rtty just received
[15:24] <G3VZV> 075.6 on my dial
[15:25] <Randomskk> still nothing here yet
[15:25] <rjmunro> The tracker doesn't seem to be showing any data yet.
[15:25] <russss> nothing received yet
[15:25] <russss> since that dodgy datapoint
[15:25] <russss> http://www.robertharrison.org/listen/view.php?reg=/ATLAS/
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[15:26] <juxta> anybody hearing it yet?
[15:26] <natrium42> what are those datapoints anyway?
[15:26] <natrium42> should i clear them?
[15:26] <juxta> yeah I think so natrium42
[15:26] <russss> just clear the last one
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[15:26] <russss> 2E0RJH : ATLAS,26,23:12:44,51.3920,0.5290,-46,4,0.0;0;0;25;26;23;43;500;0*66
[15:26] <russss> that one is erroneous
[15:27] <russss> I think it's from a few days ago.
[15:27] <russss> dunno why it just appeared
[15:27] <SpeedEvil> might it be a few seconds delay - but timezone?
[15:27] <natrium42> ok, cleared the last one
[15:28] <Randomskk> still not hearing anything
[15:28] <Randomskk> on the yagi or the whip
[15:28] <hsmith_> I am in London on 790R, not hearing anything
[15:28] <russss> give it a second
[15:28] dougnetbook (~djellison@78-86-234-136.zone2.bethere.co.uk) joined #highaltitude.
[15:28] <MikeMc68> WHy does the tracker have it marked as 'atlas' ?
[15:28] <juxta> natrium42: is the green ring the radio horizon distance bassed on alt?
[15:28] <natrium42> wow, quite a few listeners today
[15:29] <natrium42> juxta, yes
[15:29] <rjmunro> Is anyone hearing anything?
[15:29] <juxta> MikeMc68: jcoxon is using the atlas payload
[15:29] <MikeMc68> ok
[15:29] <juxta> natrium42: nice, that's nifty :)
[15:29] <natrium42> :)
[15:29] <natrium42> maybe it should be 10 degree horizon though
[15:29] <G3VZV> is the rtty continuous or in short bursts?
[15:29] <MikeMc68> LazyLeopard has sent a good string - well done
[15:30] <juxta> G3VZV, continuous usually
[15:30] Simon-MPFH (~simon@phantom.mpfh.co.uk) joined #highaltitude.
[15:30] <G3VZV> tnxs juxta
[15:30] <MikeMc68> why does it still say altitude 50m ?
[15:30] <MikeMc68> Do I have the right URL - http://www.robertharrison.org/tracker/map.php?height=900 ?
[15:31] <russss> there have been no packets successfully posted yet
[15:31] <russss> http://spacenear.us/tracker/ also works.
[15:31] <juxta> MikeMc68: last submitted position
[15:31] <MikeMc68> k
[15:31] <LazyLeopard> I've seen nothing...
[15:31] <russss> spacenearus is the recommended one
[15:31] <juxta> surprised nobody can hear it yet..
[15:32] <russss> yeah that's a bit weird.
[15:32] <MikeMc68> not a peep
[15:32] <rjmunro> It's definitely working?
[15:32] <juxta> natrium42, do you have jcoxon's CAT rig?
[15:32] <russss> does it have the CW beacon on board?
[15:32] <MikeMc68> what about the CW backup transmitter ?
[15:32] <juxta> russss, yeah it does
[15:32] <natrium42> juxta, nope
[15:32] <SpeedEvil> It's got to be at >1km now
[15:33] <juxta> it looked pretty slow in the video, but it was hard to tell with the wind
[15:33] <gb73d> the tx was not tested at launch ?
[15:34] <juxta> gb73d: it was i'm sure, but they wouldnt have had a radio hooked up to the net
[15:34] <russss> they picked up some packets before it launched.
[15:34] <gb73d> not sure how high or how long to reach slant range here
[15:35] <MikeMc68> something is seriously wrong
[15:35] <russss> it should be in range by now
[15:35] <djellison> Typically, I have to wait for 4km before I get it here in Leicester
[15:35] <juxta> where are you gb73d?
[15:35] <Randomskk> what frequency is the CW on?
[15:35] <hsmith_> I can hear nothing from London
[15:35] <russss> I don't know.
[15:35] <gb73d> Reading
[15:35] <MikeMc68> James what is the interval for the CW Beacon ?
[15:35] <gb73d> 4km
[15:35] <gb73d> i c
[15:35] <russss> the spec says that it's using the same NTX2, but I dunno what the offset is.
[15:35] <MikeMc68> try tuning around - maybe the frequency is off
[15:36] <djellison> I'm using headphones to find it before hooking in to dlfldigi
[15:36] <Randomskk> I'm not getting anything a few mhz either side
[15:36] <Randomskk> not sure what the CW beacon is meant to be on
[15:37] <djellison> 434.075 for RTTY .070 for CW
[15:37] <juxta> Randomskk: shift should be no more than 25khz
[15:37] <russss> Downlink (2) : CW Beacon, 434.070Mhz - 3 strings 1 minute apart every 15 minutes
[15:37] <russss> **Yes there is a risk of a clash but temperature drift should avoid this**
[15:37] <MikeMc68> 15 mins as in on the hour, etc ?
[15:37] <Randomskk> juxta: oops, by mhz I mean khz
[15:38] <juxta> ;p
[15:38] <Randomskk> shame the cw is so far apart
[15:38] <Randomskk> I could try tunign to that instead
[15:38] <Randomskk> is it actual CW though
[15:38] <MikeMc68> yeah it would be an idea if one or two people tuned to teh CW freq.
[15:38] <juxta> Randomskk: yeah it is
[15:38] <Randomskk> or same as rtty just with cw encoding?
[15:38] <djellison> I'm flicking between a.t.m.
[15:39] <G8DSU> Nothing heard at 070, continuing to monitor for CW
[15:39] <djellison> SCanning up and down between .065 and .080
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[15:39] <juxta> Randomskk: it's CW - on/off morse
[15:39] <gb73d> is there no one at the launch site with a radio ?
[15:39] <gonzo_> watching a whole 190kHz on the SDR here in Dorset
[15:39] <pjm> me to but 50KHz in Dorset
[15:40] <G3VZV> theres a lucky man with a nice SDR-IQ:)
[15:40] <pjm> everyone should have one ;-)
[15:40] <gb73d> u shud be 1st toi rx vzv
[15:40] <hsmith_> No valid data appears to have been uploaded to the tracker as far as I can see
[15:41] <juxta> hsmith_: not yet
[15:41] <juxta> rharrison-2e0rjh, are you about?
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[15:42] <gb73d> vfc anything hrd ?
[15:42] <rjmunro> Don't we normally get data starting a few minutes before the launch and carrying on right through?
[15:42] <SpeedEvil> rjmunro: yes.
[15:42] <SpeedEvil> rjmunro: regrettably there should amost certainly be data by now.
[15:42] <M0VFC> balloon down :-(
[15:42] <SpeedEvil> Somethng is odd.
[15:42] <M0VFC> sorry all...
[15:42] <juxta> =\
[15:43] <juxta> what happened?
[15:43] <SpeedEvil> ;/
[15:43] <M0VFC> noty
[15:43] <hsmith_> noty?
[15:43] <M0VFC> sorry
[15:43] <rharrison-2e0rjh> Launch cancelled
[15:43] <M0VFC> typing while walking
[15:43] <M0VFC> not enough lift; didn't take off properly
[15:44] <juxta> ahh
[15:44] <M0VFC> just avoided power lines, then got caught in a tree
[15:44] <hsmith_> Oh dear
[15:44] <juxta> yeah it looked very slow on the video :(
[15:44] <SpeedEvil> :/
[15:44] <SpeedEvil> recoverable?
[15:45] <M0VFC> had to burst it, and not enough He for another I think
[15:45] <SpeedEvil> I meant - payload.
[15:45] <M0VFC> payload looks intact, but obviously a bit battered
[15:45] <M0VFC> no significant visible damage
[15:45] <SpeedEvil> :) Glad about that - but obviously not the other.
[15:45] <M0VFC> indeed
[15:45] <rharrison-2e0rjh> Looks very windy out there
[15:45] <M0VFC> such is life!
[15:45] <juxta> ahh thats no good :(
[15:45] <djellison> Are we looking at a refly tomorrow perhaps, or later?
[15:45] <hsmith_> Will there be another attempt today?
[15:46] <M0VFC> not today - I'm not sure about other plans
[15:46] <gonzo_> a good trial run. Lots of people now set up for telem for the nest attempt.
[15:46] <M0VFC> James is just packing up the stuff
[15:46] <rharrison-2e0rjh> :(
[15:46] <sbasuita> D;
[15:46] <Randomskk> :( aww
[15:46] <rharrison-2e0rjh> Ok guys smile wx looked bad
[15:46] <M0VFC> no doubt he'll say more when back in front of a PC
[15:46] <hsmith_> :-( Best wishes to James
[15:46] <LazyLeopard> Oh dear. :/
[15:46] Nick change: rharrison-2e0rjh -> rjharrison
[15:46] <imipak> ah well, if everything worked perfectly first time there'd be no fun
[15:46] <LazyLeopard> Better luck next time...
[15:46] <M0VFC> gtg for now to pack up and get back in the warmth
[15:46] <M0VFC> thanks all!
[15:47] <hsmith_> Best wishes
[15:47] <imipak> (easy to say when it's not my project of course :/ )
[15:47] <gonzo_> will be qrv for the enxt one. Bye.
[15:47] <imipak> thanks to all
[15:47] <aelder> is there a bug in the tracking map? At one point it said that the balloon was over Gillingham...
[15:47] <SpeedEvil> Many thatnks for the attempt!
[15:47] <djellison> For the love of god don't drink the payload
[15:47] <SpeedEvil> aelder: yes - that's a bug
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[15:47] <imipak> aelder: hmmm, can has bugzilla? :D
[15:48] Action: G3VZV thanks everyone for their efforts and looks forward to the next attempt:
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[15:48] <djellison> Well - what am I going to do with a free evening now :o Might go a reherse my plans for a Zombie Apocalypse
[15:49] <gb73d> i thort those trees looked a bit close
[15:49] <imipak> personally I have several days' UMSF to catch up on :)
[15:49] <gb73d> shud have carted it away from em more
[15:49] <hsmith_> the trees at EARS also kill rockets
[15:49] <MikeMc68> DOH!!!
[15:49] <gb73d> well at least the kit is ok
[15:50] <gb73d> and we all got ready and waiting so heres to the next try
[15:50] <hsmith_> The wsather in Camb area looks a little better for 2morrow
[15:50] <imipak> :)
[15:50] <gb73d> wow this balloon stuff is so difficult and so exciting
[15:50] <gb73d> on tx and rx !
[15:50] <MikeMc68> it's all about the wind direction, etc. - the 'weather' is irrelevant
[15:51] <imipak> are there not limits of surface wind, turbulent or storm clouds in the vicinity, precipitation &c?
[15:51] <imipak> (limits ON surface...)
[15:52] <SpeedEvil> well - yes.
[15:52] <SpeedEvil> Launching is _lots_ easier in calm weather
[15:52] <SpeedEvil> As everything from launching it without bursting to measuring the correct amount of helium to put in is easier.
[15:53] <MikeMc68> yeah looked very blustery on the video
[15:53] <imipak> ty! (trying to pick up as much background as I can...)
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[15:56] <rjmunro> How do you measure the helium you have put in?
[15:56] <juxta> rjmunro: tie something of known weight to the balloon and fil till you have the lift you need
[15:58] <MikeMc68> my Yagi is all wonky
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[15:58] <gb73d> at least they tried
[15:58] <MikeMc68> I need a drill press to ensure straight 90 degree holes
[15:58] <gb73d> it would have been easy to say scrub due winds
[15:58] <gb73d> and that would have p everyone
[15:59] <gb73d> so well done and cant wait for more
[15:59] <MikeMc68> yep - these things happen
[15:59] <gb73d> the "infrastructure" around it is fab
[15:59] <MikeMc68> the payload survived to fly another day - that's the most important thing
[15:59] <gb73d> live viedoe feeds twitter chat the lot
[15:59] <gb73d> yes
[16:00] <hsmith_> I agree
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[16:01] <G8DSU> Video from launch site was a brilliant idea. Great effort all round. Can't wait until the next attempt
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[16:04] <gb73d> bbl
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[16:21] <bluekingcroft> Can someone update me please - was the balloon launched?
[16:21] <juxta> bluekingcroft: it was but it was aborted, it got caught in some trees
[16:22] <bluekingcroft> Oh, that explains no sibnals on 70cm
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[16:43] <jcoxon> :-(
[16:43] <juxta> hey jcoxon
[16:43] <AlexBreton> oh dear
[16:43] <jcoxon> sorry everyone
[16:43] <juxta> sorry to hear re the launch
[16:44] <sbasuita> no wories james
[16:44] <jcoxon> oh well, the payload survived
[16:45] <jcoxon> please spread the word
[16:46] <juxta> when are you planning to reattempt jcoxon?
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[16:58] <MikeMc68> are you able to retry tomorrow James or will it be another weekend now ?
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[17:41] <hsmith_> Any news on a re-launch date?
[17:42] <SpeedEvil> .nope
[17:42] <hsmith_> ok, understood
[17:43] <SpeedEvil> last real word was (03:46:03 PM) M0VFC: not today - I'm not sure about other plans
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[18:14] <natrium42> jcoxon, this is what we need --> http://numist.net/post/2010/project-typewriter.html
[18:14] <natrium42> hook it up to computer to type out radio sentences :D
[18:22] <SpeedEvil> I was hoping for something with a couple of really fast servos and a solenoid
[18:24] <natrium42> haha
[18:27] <SpeedEvil> http://singularityhub.com/2009/09/15/someone-made-a-flexpicker-out-of-legos-nutty-video/
[18:31] <natrium42> whoa, cool
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[19:40] <G8DSU> I see Bill Brown's balloon is aloft and going well - http://aprs.fi/?call=WB8ELK-11
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[20:18] <Ziltro> well, I now have a recording I could call "3 hours of noise on 70cm"... :)
[20:19] <Ziltro> but at least the (timed) recording does seem to have worked.
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[20:25] <SpeedEvil> :)
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[20:46] <jcoxon> back home
[20:46] <jcoxon> hey all
[20:48] <Ziltro> g'day
[20:49] <Laurenceb> SpeedEvil: your kada 852D, how did you fit a uk plug?
[20:49] <Ziltro> in good news, my 3 hour audio recording of 70cm worked perfectly. :)
[20:50] <LazyLeopard> http://aprs.fi/?call=WB8ELK-11 is on its way down
[20:50] <jcoxon> Ziltro, hehe, glad something worked today
[20:52] <Ziltro> looks set to land on the I75?
[20:52] <LazyLeopard> ...except when there's some jitter in the data. ;)
[20:53] <Ziltro> oh no, it is going backwards. different wind at different heights presumably... :)
[20:53] Action: russss FINALLY sent that email about trying to run amateur radio license courses at the london hackspace
[20:53] <Ziltro> of course this time yesterday I knew nothing about baloons of this kind.
[20:54] <LazyLeopard> I figure the backwards-and-upwards is data arriving out-of-sequence...
[20:54] <Ziltro> isn't it all timed?
[20:54] <Ziltro> my GPS logs all seem to have a timestamp, unless I've read them wrong
[20:55] <russss> I can confirm that things do not usually fall upwards
[20:55] <Ziltro> except at first.
[20:55] <LazyLeopard> One would have hoped so, but there's been at least three occasions it's jumped back and then forward again...
[20:55] <Ziltro> having a dance
[20:55] <LazyLeopard> It's back down at 51kft...
[20:56] <LazyLeopard> Methinks the tracker needs a tweak
[20:56] <Ziltro> so what is the identifier WB8ELK-11?
[20:56] <SpeedEvil> Laurenceb: with a screwdriver
[20:56] <SpeedEvil> Laurenceb: flat-bladed
[20:57] <Laurenceb> sure
[20:57] <Laurenceb> but whats the pinout of the cable
[20:57] <Ziltro> ah it is headding for the I75 on my screen now. :)
[20:57] <Laurenceb> ok yeah maybe I was a bit vague there :P
[20:57] <SpeedEvil> IIRC it was sensibly coloured
[20:57] <SpeedEvil> wat colours?
[20:58] <Laurenceb> white,black,green
[20:58] <Ziltro> neutral, hot, ground
[20:58] <Laurenceb> green is clearly ground, but not sure about live AND NAUTRAL
[20:58] <Ziltro> oh you are talking about USA mains. :)
[20:58] <Laurenceb> bleh capslock
[20:58] <Laurenceb> chinese mains probably
[20:59] <russss> yeah china uses that.
[20:59] <Ziltro> green is ground, black (or red) is live, white is neutral if it is USA/canada.
[20:59] <Laurenceb> http://www.justblair.co.uk/images/stories/dscn0544.jpg
[20:59] <Ziltro> that's USA plug.
[20:59] <Laurenceb> thats the plug, it says 250V AC
[20:59] <Laurenceb> so different from usa
[20:59] <Ziltro> hold it with the ground pin down and neutral is on the left.
[21:00] <Ziltro> then it is anything. ;)
[21:00] <russss> yeah I'm fairly sure black is live if there's a white conductor.
[21:00] <Ziltro> I've done some wiring in Florida. don't tell their government though...
[21:00] <Ziltro> wirenuts. brilliant...
[21:01] <Laurenceb> http://en.wikipedia.org/wiki/File:Weltkarte_der_Netzspannungen_und_Netzfrequenzen.svg
[21:01] <Laurenceb> http://upload.wikimedia.org/wikipedia/commons/b/b7/Weltkarte_verwendeter_Netzsteckertypen.svg
[21:01] <Laurenceb> fuuuuuuuuuuu
[21:02] <Laurenceb> too many chinese plugs
[21:02] Action: russss is slightly embarrased to note that he spent quite a lot of time sorting out that wikipedia page on plugs.
[21:02] <Ziltro> is it China where one of their three-phase colours is green?
[21:03] <russss> well the new UK phase colours are confusing enough
[21:03] <Ziltro> nah they are grey grey and grey
[21:03] <russss> heh
[21:03] <Ziltro> I haven't played 3-phase really though
[21:03] <Laurenceb> china is crazy stripy
[21:04] <russss> brown black and grey
[21:04] <Ziltro> did you know there is an international standard plug/socket for 230V use?
[21:04] <russss> except that black used to be the neutral colour :/
[21:04] <russss> well there's the IEC/"commando" blue one
[21:04] <Ziltro> it is the standard (and in use) in: Brazil.
[21:04] <russss> oh yeah, and that one
[21:04] <Laurenceb> im pretty certain the plug is for use in china
[21:04] <russss> it's a standard in name only
[21:04] <Laurenceb> so just have to work out whats live and neutral when that plug is in use in chnina
[21:04] <Ziltro> and blue used to be live. or neutral, depending.
[21:05] <Laurenceb> I guess its just the same as in the US?
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[21:05] <Ziltro> I would imagine it is the same.
[21:05] <russss> Laurenceb: yeah I think it's the same as the US.
[21:05] <Laurenceb> coolio
[21:05] <russss> oh wait, is this your soldering station?
[21:05] <Laurenceb> it may not even matter if live and nautral are reversed
[21:05] <Laurenceb> yes
[21:05] Nick change: RocketBoy -> RocketBoy|Away
[21:05] <Laurenceb> KADA 852D+
[21:05] <Ziltro> http://en.wikipedia.org/wiki/NEMA_connector
[21:05] <russss> well I can tell you I wired ours up with black as live and it works fine.
[21:05] <russss> :)
[21:06] <Ziltro> it won't matter unless there's some exposed wires.
[21:06] <Laurenceb> russss: cool thanks
[21:06] <Laurenceb> unfortunately the soldering iron holder is cracked due to their shoddy packaging :(
[21:07] <russss> yeah you get what you pay for I guess
[21:07] <Laurenceb> I'm thinking I'll take a photo and send a moaning email
[21:07] <Laurenceb> well they removed half the polystyrene for some stupid reason
[21:07] <Laurenceb> thats why its cracked
[21:07] <Ziltro> save weight
[21:07] <Laurenceb> lol
[21:07] <russss> odd, I don't think I noticed that on ours
[21:07] <russss> heh
[21:08] <Laurenceb> I asked for some bits as well
[21:08] <Laurenceb> think they removed it to fit them in the top
[21:08] <Ziltro> why am I still listening to my recording?!
[21:08] <Laurenceb> cuz you have no life?
[21:08] <Ziltro> ah, yes, that's the one
[21:09] <jcoxon> just upload images of the payload
[21:09] <jcoxon> suprisingly undamaged
[21:09] <Ziltro> so, these baloons... has anyone ever stuck a microphone on one?
[21:10] <Laurenceb> Ziltro: Roswell
[21:10] <Ziltro> I'm not sure there's much to hear, but you never know. there'll be a big bang at the end presumably...
[21:10] <Ziltro> Laurenceb: is that a yes?
[21:10] Action: Laurenceb is wondering how to repair the stand in the meantime - some sort of heat resistant glue
[21:11] <jcoxon> Ziltro, yeah people have
[21:11] <Laurenceb> Ziltro: AIUI Roswell was a weather balloon for detecting infrasound from nuke tests
[21:11] <jcoxon> often when recording video it also records sound
[21:11] <Ziltro> I'm assuming it gets a little cold up there? I remember seeing -50° on an aeroplane...
[21:11] <jcoxon> because there is very little air at the top there sound is a bit weird
[21:11] <jcoxon> Ziltro, yeah around -50
[21:12] <Ziltro> so you would have to have heaters for the electronics? I noticed the radio transmitter module is rated down to -20°C
[21:12] <jcoxon> http://www.flickr.com/photos/jcoxon77/4354643726/in/set-72157623226106480/
[21:15] <Ziltro> MacGyver could get to the moon in that.
[21:15] <jcoxon> hehe
[21:15] <jcoxon> its not bad for dragging and bouncing about a mile
[21:17] <Ziltro> wow, no i suppose not.
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[21:17] <Ziltro> do you test the survivability of the payload/carrier by, say, driving into it or throwing it off of a cliff?
[21:18] <Ziltro> actually throwing it out the back of a car might be better
[21:18] <jcoxon> hehe, not usually
[21:18] <jcoxon> though i did drop a payload out a window once by mistake
[21:19] <Ziltro> whoops
[21:20] <Ziltro> what sort of speed to they hit the ground at?
[21:20] <jcoxon> depends on the parachute really
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[21:23] <jcoxon> evening M0VFC
[21:24] Action: SpeedEvil tries astrophotography on the n900.
[21:24] <SpeedEvil> (with the inbuilt cam) :)
[21:24] <natrium42> through a scope?
[21:24] <SpeedEvil> No
[21:24] <natrium42> photographing the sun/moon?
[21:25] <SpeedEvil> Idly wondering if you can actually generate a position - or at least an orientation - from a moving starfield/static cam
[21:25] <SpeedEvil> And _lots_ of averaging
[21:26] <russss> there's a Google Sky Map app for Android which is pretty cool
[21:26] <russss> (slightly related)
[21:26] <M0VFC> jcoxon: evening - good journey back?
[21:26] <SpeedEvil> yeah. Not that. :)
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[21:27] <jcoxon> M0VFC, yeah not too bad thanks though have come over tired now :-)
[21:27] <SpeedEvil> Ziltro: For most payloads - at least ones with cameras - cold isn't really a problem - with the amount of heat being generated inside an insulated box.
[21:28] <Ziltro> ah right, that should do it. I was thinking that a camera would need to at least have a view of outside...
[21:29] <Ziltro> or at elast if you want any good photos.
[21:29] <SpeedEvil> yes. But the hole it pokes out of can be quite small
[21:29] <SpeedEvil> or even covered with a UV filter or something
[21:31] <russss> although you run the risk of condensation/icing then
[21:32] <Ziltro> windscreen wiper...
[21:32] <russss> heh
[21:44] <russss> ah SpeedEvil, regarding generating orientation from photos of the stars, have you seen the Astrometry group on flickr?
[21:46] <SpeedEvil> I know how to do it in principle
[21:46] <russss> http://www.flickr.com/photos/srsantander/4329489838/in/pool-astrometry
[21:47] <russss> awesomest group ever
[21:47] <SpeedEvil> I'm just wondering if it's possible with a totally, totally unsuitable camera
[21:47] <russss> I'm thinking probably not
[21:48] <SpeedEvil> probably not indeed
[21:50] <russss> if I wasn't in the middle of a massive city, I would have spent thousands of pounds on astrophotography gear.
[21:50] <russss> I think this is one of the few times that living in London has *saved* me money.
[21:50] <SpeedEvil> :)
[21:51] <SpeedEvil> I'm basically wondering if it can be done at all - despite the camera - instead of with the camera - as you might expect of a better cam
[21:51] <russss> if the camera is steadied somehow then it probably is
[21:51] <russss> but freehand, I think not
[21:51] <russss> not nearly sensitive enough
[21:53] <SpeedEvil> no. I'm assuming long average times
[21:54] <russss> I think camera sensor sensitivity is something which someone needs to make a massive breakthrough with.
[21:54] <SpeedEvil> And that the stars will actually move over the image - helping som
[21:54] <SpeedEvil> They have.
[21:55] <SpeedEvil> http://focus.ti.com/docs/prod/folders/print/tc253spd-30.html
[21:56] <SpeedEvil> impactron is basically a semiconductor photomultiplier
[21:56] <russss> interesting
[21:57] <SpeedEvil> I notice now that most of the parts are not recommended for new designs. (but they were not really 'properly' available)
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[22:31] <Laurenceb> russss: so black= live, white=nautral and green=ground?
[22:31] <Laurenceb> *neutral
[22:31] <russss> yup
[22:31] <Laurenceb> thanks
[22:34] <Laurenceb> what would be good for repairing the iron stand? its phenolic resin and gets hot (obviously)
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[22:38] <Laurenceb> the hot air tool seems to use a linear halogen
[22:38] <Laurenceb> quite a short leaded one too
[22:40] <Laurenceb> russss , SpeedEvil: did your KADA stations come with a spare M4 bolt and washer?
[22:40] <Laurenceb> about 60mm long
[22:40] <russss> I think that might be one of the shipping bolts
[22:40] <russss> there were two in mine
[22:41] <russss> check if there's another one that it's removed.
[22:41] <russss> or it makes a terrible racket when you turn it on ;)
[22:41] <SpeedEvil> russss: I don't recall
[22:41] <SpeedEvil> laui
[22:41] <SpeedEvil> Laurenceb:
[22:42] Nick change: RocketBoy|Away -> RocketBoy
[22:42] <Laurenceb> yeah the shipping bolts are in it
[22:42] <Laurenceb> there was a 60mm M4 in the bag with the main unit
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[22:53] Nick change: RocketBoy -> RocketBoy|Away
[22:53] <Laurenceb> hi natrium42
[22:53] <natrium42> hey Laurenceb
[22:53] <natrium42> i wanted to talk you about calculting horizon
[22:54] <natrium42> using the formula from wikipedia atm
[22:54] <Laurenceb> go for it
[22:54] <natrium42> think it's better to calculate 10 degree horizon instead?
[22:54] <natrium42> otherwise i am getting a radius of ~430 km for altitude of 15,000 meters
[22:54] <natrium42> err
[22:55] <natrium42> yep, that's correct
[22:55] <natrium42> http://en.wikipedia.org/wiki/Horizon
[22:55] <Laurenceb> that sounds sensible for 0 degrees
[22:55] <Laurenceb> afk
[22:56] <natrium42> using the sqrt(12.756*height_meters) one
[22:56] <jcoxon> natrium42, chatting with RocketBoy|Away today he reckons therotically you could still Rx over the horizon
[22:56] <jcoxon> though only a little bit
[22:56] <natrium42> ah
[22:56] <natrium42> so should i leave it as is?
[22:57] <jcoxon> yeah leave it in and we'll 'field' test it sometime
[22:57] <natrium42> k
[22:57] <natrium42> hrm, vml is borked in non-compatibility mode of IE8
[22:58] <russss> it still doesn't support canvas either does it
[22:59] <natrium42> http://ajaxian.com/archives/the-vml-changes-in-ie-8
[23:08] <SpeedEvil> I'd look at the fresnel zone page I poi9nted at earlier
[23:09] <SpeedEvil> Look at when the fresnel zone interrupted by an object at the point when the earth intersects it to the largest amount - by that amount - gets affected
[23:09] <Laurenceb> I've gtg, sorry
[23:09] <Laurenceb> I'll try and work it out for arbitrary angle above horizon
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[23:18] <SpeedEvil> that too
[23:21] <natrium42> hmm, does anybody run IE7?
[23:22] <juxta> natrium42: I have it on this PC
[23:22] <Ziltro> I try not to.
[23:22] <juxta> but I dont use it ;)
[23:22] <natrium42> juxta, could you test the tracker please? see if the horizon circle is shown
[23:22] <juxta> sure
[23:23] <natrium42> i added code to make it work in IE8, but it might have broken IE7
[23:23] <juxta> yep, it's there
[23:23] <juxta> looks quite large for 50m alt though
[23:24] <natrium42> you haven't seen what it looks like at 30km :P
[23:24] <juxta> heh
[23:24] <natrium42> but that's actually correct
[23:24] <natrium42> it's over 600 km in radius at 30km
[23:24] <juxta> yeah
[23:24] <juxta> I drew a circle on a map here to work out which radio clubs to email ;p
[23:25] <natrium42> mind you, it doesn't account for ground elevation
[23:25] <juxta> oh, and to see if I would be hitting some repeater entry freq's with my TX
[23:25] <natrium42> good idea
[23:25] <russss> at lower altitudes the margin of error is massively increased by ground elevation
[23:25] <natrium42> thanks for testing, juxta
[23:26] <juxta> np
[23:26] <russss> what frequency did you use in the end juxta?
[23:26] <juxta> 434.650
[23:26] <russss> is that an amateur range in australia?
[23:27] <juxta> russss: yeah it's in the 70cm ham band, but we have the same ISM class as you guys - so it can be used license exempt
[23:27] <russss> (did you work out if you can transmit on amateur bands/powers from a balloon?)
[23:27] <juxta> we get 25mW though, not 10 :)
[23:27] <russss> because then you could just use APRS
[23:27] <juxta> russss: yeah we can - I know I could use APRS, but that takes the fun out of it ;p
[23:27] <Ziltro> how do you go about finding radio clubs within an area?
[23:27] <russss> heh
[23:28] <Ziltro> also, how high do you have to go before being legally not in a country any more therefore not goverened by its laws?
[23:28] <russss> Ziltro: quite high. basically space
[23:28] <juxta> Ziltro: I'm not sure where you are - but we have an index at the governing body for radio here, the wireless institute of Australia
[23:28] <Ziltro> also how could "they" prove who was doing teh transmitting if more than one person sent a TX up and none of you admitted anything?
[23:29] <Ziltro> russss: that's quite high.
[23:29] <russss> and theoretically objects in space are still regulated in trasmitting by the laws of the countries they're transmitting to
[23:29] <Ziltro> juxta: I was thinking around Perth, WA actually. I'm in the UK unfortunatly.
[23:29] <russss> I think.
[23:29] <juxta> Ziltro, lemme give you a link :)
[23:29] <Ziltro> juxta: why thank you.
[23:30] <juxta> Ziltro: http://www.wia.org.au/clubs/vk6/
[23:30] <juxta> not many listed there, I'm sure there are more clubs than that in WA, but that's a start at least :)
[23:30] <russss> in the UK the RSGB has a list of clubs on their site
[23:30] <Ziltro> wow. 8 clubs in the whole state
[23:31] <juxta> I'm in SA, we have a few more
[23:31] <juxta> http://www.wia.org.au/clubs/vk5/
[23:41] <Ziltro> mmmm I wonder what it is like in SA
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[00:00] --- Sun Feb 14 2010