highaltitude.log.20090402

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[00:10] <SpeedEvil> Today my brothers somewhat confused girlfriend referred to the process of sending a twitter message.
[00:10] <SpeedEvil> 'twatting'.
[00:11] <jcoxon_> oh
[00:11] <jcoxon_> thats unfortunate
[00:11] <SpeedEvil> Unintentional, but perhaps somewhat appropriate in some cases.
[00:12] <jcoxon_> SpeedEvil, you going to be around tomorrow lunch/afternoon?
[00:12] <SpeedEvil> should be
[00:12] <jcoxon_> i' m probably going to miss the end of the flight
[00:12] <jcoxon_> if i run vnc will you keep an eye on the decoding
[00:12] <SpeedEvil> sure
[00:13] <jcoxon_> you got the old details?
[00:13] <SpeedEvil> If it's started, it's pretty much a case of clicking the cursor if the waterfall shows the spectrum has shifted, and the data has errors?
[00:13] <SpeedEvil> and worst-case changing the frequency a tad, if it falls off the audio
[00:13] <SpeedEvil> umm
[00:13] <SpeedEvil> maybe, but msg me
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[00:14] <jcoxon_> yeah exactly
[00:14] <jcoxon_> ummmm okay
[00:14] edmoore (n=edmoore@88-202-208-187.rdns.as8401.net) left irc:
[00:14] <jcoxon_> i'll email - as a hard copy
[00:14] <SpeedEvil> works too
[00:15] <jcoxon_> cool, great
[00:15] <jcoxon_> i should be around for the beginning
[00:15] Action: SpeedEvil needs to check on the price of gravel and hydrogen tomorrow.
[00:16] <SpeedEvil> (seperate projects)
[00:16] Action: SpeedEvil ponders cargolifter-DIY to move gravel, and decides against.
[00:34] <Tigga_Lab> CUSF launch tomorrow...
[00:34] <Tigga_Lab> in case Ed hasn't told you all :P
[00:35] <jcoxon_> Tigga_Lab, yeah
[00:35] <jcoxon_> ETA launch?
[00:46] <rjharrison> Listener working now
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[00:53] <jcoxon_> evening fergusnoble
[00:53] <fergusnoble> jcoxon_: hi
[00:54] <jcoxon_> late night payloading hacking?
[00:57] <fergusnoble> nope, im at home at the moment
[00:57] <fergusnoble> so i miss all the fun :(
[00:57] <fergusnoble> are you going to be listening in on the radio tomorrow?
[00:57] <jcoxon_> yes/no
[00:57] <jcoxon_> we are testing the UKHAS Network
[00:58] <jcoxon_> but i have to be out in the afternoon
[00:58] Action: SpeedEvil has email.
[00:58] <SpeedEvil> Night all.
[00:58] <jcoxon_> will set everything up and then let people vnc and keep me logging
[00:58] <jcoxon_> night SpeedEvil
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[01:01] <fergusnoble> so is robert going to listen too to test the network?
[01:02] <jcoxon_> yes
[01:02] <jcoxon_> and perhaps ed as well
[01:02] <fergusnoble> shame I dont have a radio here
[01:02] <jcoxon_> so: we have
[01:02] <jcoxon_> http://www.pegasushabproject.org.uk/track/
[01:02] <jcoxon_> http://maps.google.com/?q=http://www.robertharrison.org/listen/receivers.php&t=p
[01:02] <jcoxon_> and to bring them all together:
[01:02] <jcoxon_> http://www.pegasushabproject.org.uk/track/track.kml
[01:02] <jcoxon_> which will work nicely in google earth
[01:04] <fergusnoble> oh awesome, live update kml?
[01:04] <jcoxon_> yup
[01:04] <jcoxon_> and tells you which receivers are online
[01:05] <jcoxon_> i'm at the moment working on DLClient/M which reads a gps and will update the position of the listener station
[01:05] <fergusnoble> jcoxon_this is so cool
[01:05] <fergusnoble> didnt realise it was so advanced
[01:06] <jcoxon_> we've been crazy hacking all day
[01:06] <jcoxon_> robert's tracker page is broken
[01:06] <fergusnoble> does the track come up on the google maps map with the listening stations too?
[01:06] <jcoxon_> no not yet
[01:06] <jcoxon_> still working on that
[01:06] <jcoxon_> so either 2 seperate pages in your web browser
[01:06] <jcoxon_> or combined on google earth
[01:06] <jcoxon_> fergusnoble, any experience with pserial?
[01:07] <fergusnoble> pyserial?
[01:07] <jcoxon_> yeah
[01:08] <fergusnoble> not much, i think i tried it out once a while back
[01:08] <jcoxon_> basically i'm reading a serial port periodically
[01:08] <jcoxon_> and the data is backing up
[01:08] <jcoxon_> but when i flush the input it flushes it for ever
[01:08] <jcoxon_> really weird
[01:09] <fergusnoble> once you flush you get no more data after that?
[01:09] <jcoxon_> yeah
[01:10] <fergusnoble> odd
[01:11] <jcoxon_> indeed
[01:13] <Tigga_Lab> jcoxon_: sorry - got distracted. Launch aimed at 12 noon.
[01:14] <Tigga_Lab> fergusnoble: from Dan: dominoex had to be removed from the code to get it to compile and now are using RTTY - is this ok?
[01:14] <fergusnoble> Tigga_Lab: how goes it?
[01:14] <jcoxon_> okay
[01:15] <fergusnoble> Tigga_Lab: should be ok, but it really should be compiling with domino in
[01:15] <Tigga_Lab> I think we're just about finished on the badger. Got to go to the dept. to do a hang test
[01:15] <fergusnoble> are you sure that the not compiling is not symptomatic of another problem?
[01:15] <Tigga_Lab> then we should be lovely
[01:15] <fergusnoble> because it was compiling fine for me
[01:16] <Tigga_Lab> we can try including it again and see
[01:16] <Tigga_Lab> but we hadn't modified anything at the time
[01:16] <fergusnoble> just check its all ok
[01:17] <Tigga_Lab> what do you mean?
[01:17] <Tigga_Lab> just check the GPS is still working?
[01:17] <fergusnoble> like test the radio for more than a few minutes to check that when its due to switch to domino it doesnt cock
[01:17] <Tigga_Lab> and radio etc.
[01:17] <Tigga_Lab> yup will do
[01:17] <Tigga_Lab> we commonted out the switch
[01:17] <fergusnoble> ok, cool
[01:17] <Tigga_Lab> and just told it to always use rtty so it should be fine
[01:18] <fergusnoble> what was the compile error out of interest?
[01:18] <fergusnoble> im sure it will be fine, the domino didnt work very well anyway so i would have recommended taking it out anyway
[01:18] <Tigga_Lab> we sorted the error
[01:18] <Tigga_Lab> we were just about to ask that
[01:19] <Tigga_Lab> it had an int inside a loop
[01:19] <fergusnoble> oh the C99 error
[01:19] <fergusnoble> bums
[01:20] <fergusnoble> maybe i configured my crossworks to allow gcc extensions
[01:20] <Tigga_Lab> dan stole the computer there
[01:20] <Tigga_Lab> easy to fix though
[01:21] <Tigga_Lab> updated http://www.srcf.ucam.org/~cuspaceflight/predict/index_jeremy.php
[01:21] <Tigga_Lab> looks prettier
[01:24] <fergusnoble> Tigga_Lab: nice
[01:25] <fergusnoble> Tigga_Lab: wouldnt mind having a chat about it at some point though as I have some ideas for future changes
[01:27] <fergusnoble> Tigga_Lab: i think on the page when we have the map and options together we dont need all the options
[01:27] <jcoxon_> fixed it
[01:27] <fergusnoble> and it would be good to think how this will integrate with the overlays
[01:27] <jcoxon_> you know how you can't fix something so you just do random things
[01:27] <fergusnoble> would be good to try and squeese a bit more space for the map too
[01:28] <Tigga_Lab> yeah - should get a bit more when I remove the thing on the reset
[01:28] <Tigga_Lab> dunno about the overlays
[01:29] <Tigga_Lab> fergusnoble: re - options. The thing is it lets you go again without having to go back. It also removes the need for some of the othe text as it is already in the options
[01:29] <Tigga_Lab> definately agree that it needs more space
[01:29] <jcoxon_> fergusnoble, you should change the kml to a network link then i could add it to my google earth superkml
[01:30] <fergusnoble> Tigga_Lab: i know, i started implementing something similar from the start, just never got round to finishing it
[01:31] <fergusnoble> Tigga_Lab: but would be good to have a dialogue about it if you are interested in doing more to it
[01:31] <Tigga_Lab> fergusnoble: yeah - sure. It has some glitches with the locking at the moment which I have spoke to rob about fixing
[01:31] <fergusnoble> jcoxon_: unforunately the kml is overwritten when someone else runs the predictor
[01:32] <jcoxon_> true
[01:32] <fergusnoble> jcoxon_: was going to make it use proper sessions at some point so there can be multiple concurrent users
[01:32] <jcoxon_> that isn't necessarily bad somehow time stamp the forecast
[01:32] <Tigga_Lab> fergusnoble: my plan was to save a .csv unique to each run settings. same for kml
[01:32] <Tigga_Lab> then re-runs would be free
[01:32] <jcoxon_> and everythime it runs it updates teh forecast for that time
[01:33] <Tigga_Lab> the files are tiny so space isn't much of an issue
[01:33] <jcoxon_> which then updates google earth
[01:33] <Tigga_Lab> we just have to delete the old ones
[01:33] <fergusnoble> Tigga_Lab: i have been thinking a lot about this, too much to discuss here
[01:33] <fergusnoble> think some kind of system that knows when you are doing a rerun of the same area
[01:34] <fergusnoble> from the file name of the tiles
[01:35] <fergusnoble> then we can get it to pull in the latest version of certain areas automatically every few hours so you never need to wait for it to download gribs in areas that are commonly launched in
[01:35] <Tigga_Lab> oooh
[01:35] <Tigga_Lab> auto-gribbing would be lovely
[01:36] <fergusnoble> also the multi-day forecast is supposed to be mainly for emailing
[01:36] <fergusnoble> am thinking for the maps of implementing a way of running for arbitrary ranges of any of the parameters
[01:36] <fergusnoble> like i did for the star tracker console
[01:37] <Tigga_Lab> I think multi-day is nice just so you can visualise it
[01:37] <Tigga_Lab> at least for now
[01:37] <Tigga_Lab> I was thinking of that too
[01:37] <fergusnoble> yeah, but could be more flexible in the future, e.g. do a range of burst altitudes
[01:37] <Tigga_Lab> the interface is a bit of a PITA
[01:37] <fergusnoble> or range of a few hours around launch
[01:37] <fergusnoble> yeah, needs some working on
[01:38] <Tigga_Lab> I think that could be replaced by a MC simulation
[01:38] <Tigga_Lab> doing small ranges manually isn't too painful with the no reset button
[01:38] <fergusnoble> Tigga_Lab: yeah, have thought about MC, my thoght was to run regular MCs but to have an interface for doing specific runs
[01:39] <fergusnoble> i think doing MCs will be too slow to just decide to do one and then it draws on the map
[01:40] <Tigga_Lab> I dunno - the main pain is GRIB getting
[01:40] <Tigga_Lab> the predictor itself can almost certainly be sped up
[01:40] <Tigga_Lab> 1000 iterations isn't out of the question if you're willing to wait a minute
[01:40] <fergusnoble> sure, but there are a lot of parameters in the space
[01:41] <Tigga_Lab> I'd have to talk to Ed - he knows more about it than me
[01:41] <fergusnoble> i think you would have to do it by randomising every wind value by some amount
[01:41] <fergusnoble> just characterising the variance is quite difficult
[01:42] <jcoxon_> okay thats me done for the night
[01:42] <Tigga_Lab> yeah - I think we'd have to experiment a bit
[01:42] <jcoxon_> Tigga_Lab, I've written a version of the DLClient for mobile use
[01:42] <Tigga_Lab> g'night jcoxon_
[01:43] <fergusnoble> jcoxon_: will try and be online to help tomorrow
[01:43] <fergusnoble> night
[01:43] <jcoxon_> so if you have the chance to run it with internet and a gps
[01:43] <jcoxon_> that would be great
[01:43] <jcoxon_> while chasing or whatever
[01:43] <Tigga_Lab> if I'm honest I have no idea what "the DLClient" is :S
[01:44] <jcoxon_> its a python script that uploads any data to the web
[01:44] <jcoxon_> the server then compares data from multiple sites, verifies it and plots it
[01:45] <jcoxon_> it also keeps an eye on who is providing data, plotting their position as well
[01:45] <jcoxon_> Ed knows what to do - I'll leave it up to him to sort out
[01:45] <jcoxon_> night
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[01:49] <Tigga_Lab> fergusnoble: squeezed a bit more space for the map
[01:49] <Tigga_Lab> date wraps a bit too much
[01:50] <Tigga_Lab> fergusnoble: unconnected - is there any chance we could get the jazzy chase software for tomorrow?
[01:50] <fergusnoble> no
[01:50] <fergusnoble> its on my eee which is in my college room :(
[01:51] <fergusnoble> actually... wait
[01:51] <fergusnoble> i do have a copy here
[01:51] <fergusnoble> do you have a laptop with linux?
[01:51] <fergusnoble> it could be quite a hassle to set up though
[01:51] <Tigga_Lab> we have ed's eee
[01:51] <fergusnoble> hmm... you can try it if you want
[01:52] <fergusnoble> i think it would take a while even if i was there
[01:52] <Tigga_Lab> okies - sounds like that's not for this time then
[01:53] <Tigga_Lab> it's a fairly nice launch - looking at being under 20km from Cambridge
[01:53] <Tigga_Lab> so we don't need super-tracking
[01:54] <Tigga_Lab> lapwing just went so I may have missed replies
[01:59] <Tigga_Lab> when are you back in Cambridge fergusnoble?
[01:59] <fergusnoble> not till term starts
[02:00] <fergusnoble> unless im needed before that
[02:00] <Tigga_Lab> ok
[02:00] <fergusnoble> can prolly come up any time if necessary
[02:01] <Tigga_Lab> re: prediction website - if you have any nice thoughts you can email me and I'll try to implement/do a mockup
[02:02] <Tigga_Lab> fergusnoble: badger up :D
[02:02] <Tigga_Lab> going for a 5 hr 30 min flight
[02:02] <fergusnoble> Tigga_Lab: i will at some point
[02:03] <fergusnoble> wow, long
[02:03] <fergusnoble> what burst?
[02:03] <fergusnoble> and weight?
[02:03] <Tigga_Lab> a little over 2kg, burst 34.5km
[02:04] <Tigga_Lab> ascent 2m/s ish
[02:04] <fergusnoble> cool, good luck
[02:04] <fergusnoble> is that with a 3kg?
[02:04] <Tigga_Lab> 1.5kg
[02:05] <fergusnoble> ok, cool
[02:07] <Tigga_Lab> fergusnoble: rob asks if one 6V cell is good enough for the badger
[02:08] <fergusnoble> yes, pleanty if your not flying cutdowns
[02:08] <fergusnoble> *plenty
[02:08] <Tigga_Lab> good
[02:08] <fergusnoble> using a new one?
[02:09] <Tigga_Lab> yup
[02:14] <Tigga_Lab> ended up with 4 cameras...
[02:15] <fergusnoble> you guys arent actually walking are you?
[02:15] <Tigga_Lab> might do
[02:16] <fergusnoble> please have a car available in case you have to df
[02:16] <fergusnoble> it would be such a pain if something went wrong
[02:16] <fergusnoble> and we didnt get it back because we didnt have a car
[02:17] <Tigga_Lab> don't worry
[02:17] <Tigga_Lab> we are planning on driving
[02:17] <Tigga_Lab> ed's got his car
[02:17] <fergusnoble> ok, cool
[02:17] <fergusnoble> ed is coming to the launch then?
[02:17] <Tigga_Lab> ignore that - it was Dan
[02:17] <Tigga_Lab> yeah
[02:18] <fergusnoble> ok cool
[03:34] <Tigga_Lab> fergusnoble: auw - 2.4kg
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[05:04] <natrium> 4 cameras, whoa :)
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[08:53] <jcoxon> morning all
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[08:54] #highaltitude: mode change '+o jcoxon' by ChanServ!ChanServ@services.
[08:56] Topic changed on #highaltitude by jcoxon!n=jcoxon@host81-152-142-254.range81-152.btcentralplus.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk, wiki.ukhas.org.uk . Nova 11 Flight Today 11:00GMT, Tracking on http://www.pegasushabproject.org.uk/track/ (check out the kml file - also shows the radio receivers using the UKHAS Network
[08:56] Topic changed on #highaltitude by jcoxon!n=jcoxon@host81-152-142-254.range81-152.btcentralplus.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk, wiki.ukhas.org.uk . Nova 11 Flight Today 11:00GMT, Tracking on http://www.pegasushabproject.org.uk/track/ (check out the kml file - also shows the radio receivers using the UKHAS Network)
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[09:03] Topic changed on #highaltitude by jcoxon!n=jcoxon@host81-152-142-254.range81-152.btcentralplus.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk, wiki.ukhas.org.uk . Nova 11 Flight Today 11:00GMT, Track: http://www.pegasushabproject.org.uk/track/ More info http://wiki.ukhas.org.uk/current_launch_details
[09:03] Topic changed on #highaltitude by jcoxon!n=jcoxon@host81-152-142-254.range81-152.btcentralplus.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk, wiki.ukhas.org.uk . Nova 11 Flight Today 11:00GMT, Track: http://www.pegasushabproject.org.uk/track/ More info: http://wiki.ukhas.org.uk/current_launch_details
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[09:04] <rjharrison> ping natrium
[09:05] <jcoxon> morning rjharrison
[09:05] <rjharrison> hehe didn't see you there
[09:05] <rjharrison> @
[09:05] <jcoxon> managed to get the DLClientM working
[09:05] <rjharrison> Coo
[09:05] <rjharrison> l
[09:05] <jcoxon> after a big fight
[09:05] <rjharrison> I'll test with my gps tonight
[09:05] <jcoxon> okay
[09:05] <rjharrison> how much later did you play till
[09:05] <jcoxon> 1.30
[09:06] <rjharrison> lat enough
[09:06] <jcoxon> yeah
[09:06] <rjharrison> right I had better make sure that the tracker passes the standard string
[09:07] <jcoxon> i'm going to have to leave at 1 from home
[09:07] <jcoxon> so hopefully will get the first hour in
[09:07] <jcoxon> they are planning a long long flight
[09:07] <rjharrison> Perfect day for a lunach
[09:07] <jcoxon> with a very small ascent rate
[09:07] <rjharrison> hehe
[09:07] <jcoxon> one might say an altitude attempt
[09:07] <jcoxon> with 4 cameras...
[09:07] <jcoxon> written up here: http://wiki.ukhas.org.uk/current_launch_details
[09:11] <rjharrison> Yep about time
[09:13] <jcoxon> right i'll bbl, time to run my errands
[09:15] <rjharrison> I'm going to clean out the recievers
[09:16] <rjharrison> Any got a track from wyoming
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[09:45] Action: shellevil sort-of wakes up.
[09:52] <rjharrison> fergusnoble ping
[09:52] <rjharrison> CUSF ping
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[09:59] <rjharrison> Hi steve
[09:59] <rjharrison> We should be launching this w/e
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[10:10] <G8KHW> just taking a look at the wx
[10:11] <G8KHW> are nova still on for mid-day
[10:14] <G8KHW> rjharrison:early Saturday looks OK - today and friday are better
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[10:33] <G8KHW> bbl
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[10:39] <SpeedEvil> jcoxon: vnc works
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[11:03] Nick change: G8KHW -> G8KHW_Away
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[11:19] <jcoxon> hey all
[11:19] <jcoxon> SpeedEvil, great
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[11:21] <jcoxon> hey G8KHW_
[11:21] Nick change: G8KHW_ -> g8khw-iPhone
[11:22] <g8khw-iPhone> Hey is the launch still on
[11:22] <jcoxon> yes
[11:22] <jcoxon> 11GMT
[11:22] <jcoxon> long flight 5 or so hours is their plan
[11:22] <jcoxon> i see you've got the DLClient up and running :-D
[11:25] <g8khw-iPhone> Yea hope so
[11:26] <jcoxon> looks fine
[11:26] <jcoxon> did you get the latest copy?
[11:26] <g8khw-iPhone> Yep
[11:27] <g8khw-iPhone> Just installed everything
[11:27] <g8khw-iPhone> From scratch
[11:27] <g8khw-iPhone> Dl4
[11:27] <jcoxon> cool
[11:27] <jcoxon> on windows?
[11:28] <g8khw-iPhone> Yep vista 32
[11:28] <jcoxon> wow and worked first time
[11:29] <g8khw-iPhone> I'm out at the mo - will nip home when it launches
[11:29] <jcoxon> okay cool
[11:29] <jcoxon> what stop bits will they use?
[11:30] <g8khw-iPhone> Front know 1 I would think
[11:30] <g8khw-iPhone> Don't
[11:30] <jcoxon> yeah thats what i suspected
[11:30] <g8khw-iPhone> Bbl
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[12:00] <SpeedEvil> jcoxon: what's lunchtime today?
[12:00] <SpeedEvil> ^a
[12:00] <jcoxon> i thought now
[12:00] <jcoxon> but i'm not so sure
[12:01] <SpeedEvil> who's is it?
[12:01] <jcoxon> cusf
[12:01] <jcoxon> ping fergusnoble
[12:08] <jcoxon> i can't remember if they are on .075 or .650
[12:11] <jcoxon> ooo its 434.650
[12:14] <jcoxon> its not there yet
[12:14] <jcoxon> l looked it up
[12:18] <SpeedEvil> be nice if there was an auto-scanner thingy
[12:19] <jcoxon> 25 mins
[12:19] <jcoxon> yeah i hacked teh fldigi code a bit
[12:19] Nick change: G8KHW_Away -> G8KHW
[12:19] <jcoxon> to make it scan up and down
[12:19] <jcoxon> but its not too practical
[12:19] <jcoxon> need to think of another clever way
[12:19] <SpeedEvil> lose the GUI, scan in 3KHz lumps for data in the right format...
[12:20] <SpeedEvil> or 9KHz - if the radio is 10 wide
[12:25] <jcoxon> yeah, but there is nothing like be able to look at it
[12:26] <jcoxon> oooo the new google maps on symbian s60 supports kml
[12:27] <G8KHW> are they going to use dominoex?
[12:27] <jcoxon> no just rtty today
[12:27] <jcoxon> dominoex didn't work inflight last time
[12:28] <G8KHW> :-(
[12:28] <G8KHW> so rtty then (hence the stop bit Q)?
[12:28] <jcoxon> yes
[12:29] <G8KHW> 50 baud?
[12:29] <jcoxon> on 434.650
[12:29] <jcoxon> 50, 425 shift
[12:29] <jcoxon> ASCII-7
[12:29] <G8KHW> ok
[12:30] <rhjharrison> Launch news
[12:30] <rhjharrison> if any
[12:31] <rhjharrison> .075
[12:31] <rhjharrison> no
[12:31] <rhjharrison> .650
[12:31] <rhjharrison> definate
[12:31] Action: SpeedEvil is having wheatabix, with some orange marmalade
[12:31] <rhjharrison> I was going to send icarus up bhind them
[12:31] <rhjharrison> whish I had
[12:31] <rhjharrison> wish
[12:32] <jcoxon> it'll be in about 15mins
[12:32] <G8KHW> yeah wx is good 2 day
[12:32] <jcoxon> they'll be more days
[12:32] <rhjharrison> jcoxon r u in camb?
[12:32] <jcoxon> rhjharrison, the network will be the coolest
[12:32] <jcoxon> no
[12:32] <jcoxon> am still in london
[12:32] <jcoxon> am going home to suffolk, leaving here in 30mins
[12:32] <jcoxon> so will be on the train
[12:32] <rhjharrison> U staying there?
[12:32] <rhjharrison> hehe
[12:32] <rhjharrison> cool
[12:33] <jcoxon> am away this weekend unfortunately - no ballooning for me
[12:33] <rhjharrison> me 2
[12:33] <rhjharrison> Bloody stag w/e
[12:33] <rhjharrison> I rather launch a baloon them go to a stripbar
[12:33] <rhjharrison> I can do that in the rain
[12:34] <rhjharrison> do we know who the CUSF team is today?
[12:35] <G8KHW> if this fldigi works I'm going to ditch trueTTY
[12:35] <jcoxon> G8KHW, it does work!
[12:35] <jcoxon> ooooo how cool
[12:35] <G8KHW> have we got a projected flight path?
[12:36] <jcoxon> i have the network link on my phone
[12:36] <jcoxon> with google maps and kml
[12:36] <rhjharrison> fldigi is better than truetty IMHO
[12:36] Action: SpeedEvil ponders strip-bars with indoor rain.
[12:36] <jcoxon> yeah i agree
[12:36] <jcoxon> rhjharrison, shall we remove the single badger point
[12:36] <rhjharrison> gone :)
[12:36] <jcoxon> oh
[12:36] <jcoxon> hmmmm still on the kml
[12:40] <rhjharrison> I delete it through the pannel
[12:40] <jcoxon> its gone
[12:43] <G8KHW> its still on mine
[12:44] <G8KHW> ? near northhampton?
[12:44] <jcoxon> G8KHW, might need to refresh
[12:44] <jcoxon> we are using an old version of the tracker
[12:45] <G8KHW> why?
[12:46] <jcoxon> because the new one has got a bug that causes browsers to crash
[12:46] <jcoxon> the listening server is all new, just the tracker display is the old version
[12:47] <G8KHW> done a refresh - still there and started up firefox rather than explorer - still there
[12:48] <jcoxon> strange
[12:48] <jcoxon> not there for me
[12:49] <G8KHW> ah well - hardly important if the rest works ok
[12:49] <jcoxon> the key is actually just http://www.robertharrison.org/listen/view.php
[12:50] <G8KHW> do the nova guys know what dominoex stoped working in flight
[12:51] <fergusnoble> G8KHW: i think it might have been the spacing changing due to temperature
[12:51] <fergusnoble> on the bench it was very sensitive to that
[12:52] <G8KHW> ah - I was about to check the HFTX for the same thing today
[12:52] <fergusnoble> will do some more testing, might have been that the spacing was only just on the edge of working anyway with the 12bit dac
[12:53] <jcoxon> oooo ed is online
[12:53] <jcoxon> rhjharrison, you not bringing your station online?
[12:57] <fergusnoble> how does it know when someon is online or offline?
[12:59] <fergusnoble> 2mins till balloon filling
[12:59] Action: G8KHW takes bets
[13:00] <rhjharrison> U send identity data to the syatem
[13:00] <rhjharrison> If you have been online in the last hour you are deemed active
[13:01] <fergusnoble> cool
[13:01] <jcoxon> hmmmm ed seems to be having trouble with the Client
[13:01] <fergusnoble> whats the link to the kml?
[13:02] <rhjharrison> linux?
[13:02] <jcoxon> i think mac
[13:02] <jcoxon> fergusnoble, http://www.pegasushabproject.org.uk/track/track.kml
[13:03] <jcoxon> urgh need to get some data so i can check everything works
[13:05] <rhjharrison> I have some
[13:05] <rhjharrison> Shall I send a string
[13:05] <jcoxon> the problem was the client reading fldigi
[13:06] <rhjharrison> It would be good to be able to specify the logfile directly
[13:06] <jcoxon> you can
[13:06] <jcoxon> with --no-fldigi
[13:07] <fergusnoble> jcoxon: he got it sorted yet?
[13:07] <jcoxon> he had to go out for the launch
[13:07] <jcoxon> something to fix afterwards
[13:07] <jcoxon> its just i have to go leave by 13.15
[13:10] <jcoxon> okay i've got to go
[13:10] <jcoxon> will have to debug by phone
[13:10] <jcoxon> SpeedEvil, the radio station is all yours
[13:10] Action: SpeedEvil is logged in
[13:10] <jcoxon> good luck
[13:10] <SpeedEvil> nothing visible though
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[13:16] <rhjharrison> SpeedEvil there won't be till launch
[13:17] <SpeedEvil> yeah - just playing - nothing other than a carrier at 434.6498 or so
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[13:18] <rhjharrison> Hi james
[13:18] <M6JCX> Hey guys
[13:19] <M6JCX> Anything?
[13:19] <rhjharrison> No yet
[13:20] <rhjharrison> I'm listening
[13:20] <G8KHW> HISSSSSSSSSSSSSSS
[13:20] <M6JCX> Hehe
[13:22] <M6JCX> Have they actually launched?
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[13:23] <G8KHW> not that we know
[13:23] <Laurenceb> hello
[13:23] <rhjharrison> Hi Laurenceb
[13:24] <G8KHW> yo laurenceb
[13:26] <rhjharrison> G8KHW we need to get up soon
[13:26] <rhjharrison> We could do a midweek launch
[13:26] <G8KHW> yeah
[13:27] <rhjharrison> not sure how EARS would cope with that
[13:27] <G8KHW> not from elsworth
[13:27] <rhjharrison> I'm so ready for a launch a day off work would be good
[13:27] <G8KHW> I have all the time in the world ATM
[13:28] <G8KHW> contract has finished
[13:29] <G8KHW> I'll check with the CAA - see if I can get EARS OKed for week flights
[13:30] <G8KHW> they were a bit iffy about that in the past due to the local military airfields
[13:31] <rhjharrison> http://maps.google.com/?q=http://www.robertharrison.org/listen/receivers.php&t=p
[13:31] <rhjharrison> This is a list of the active stations for the distributed listener
[13:31] <rhjharrison> any news guys
[13:32] <rhjharrison> Who is at the launch?
[13:33] <Laurenceb> somethings flying?
[13:34] <G8KHW> /me thinks 13:45 - 10 to 1, 14:00 - 5 to 1, 14:15 2 to 1
[13:34] <G8KHW> yep nova
[13:34] <rhjharrison> lol
[13:36] <Laurenceb> appears to have landed
[13:36] <Laurenceb> ?
[13:36] <G8KHW> yeah I get that badger point too
[13:36] <Laurenceb> 10.2Km
[13:36] <Laurenceb> weird
[13:36] <Laurenceb> hope its ok
[13:38] <G8KHW> its just old data
[13:38] <rhjharrison> if you are looking at http://www.robertharrison.org/tracker/
[13:38] <rhjharrison> Yo are in the wrong place
[13:38] <rhjharrison> http://www.pegasushabproject.org.uk/track/
[13:39] <rhjharrison> It's a long story but the tracker does not work under Centos 4.7
[13:39] <Laurenceb> dont see anything
[13:39] <rhjharrison> Either that or refresh your browser
[13:40] <rhjharrison> There should not be any points on the map
[13:40] <G8KHW> ah ta - thats better
[13:40] <Laurenceb> what should I see?
[13:41] <G8KHW> a map of the world with nothing on it
[13:42] <Laurenceb> they lanmded?
[13:43] Action: G8KHW thinks 14:30 is now odds on favorite
[13:44] Action: Laurenceb doesnt follow
[13:44] <G8KHW> I'm offering odd on launch times
[13:44] <G8KHW> odds
[13:44] <Laurenceb> oh they havent launched?
[13:45] <G8KHW> nope not yet
[13:45] <Laurenceb> right
[13:45] <G8KHW> 12:00 was planned
[13:45] <Laurenceb> in c, if I set an 8 bit rigister to 0b000001100
[13:45] <Laurenceb> what happens?
[13:46] <G8KHW> i have data
[13:46] <G8KHW> 4000m
[13:47] <G8KHW> $$Badger,3808,12:46:28,52.2173,-0.0108194,4054.76,2,9,0,0,0,0,0.0
[13:47] <SpeedEvil> 434650?
[13:47] <SpeedEvil> rtty 425 50?
[13:47] <Laurenceb> badgers badgers badgers badger
[13:47] <G8KHW> about 1.5KHz down from 434.650
[13:48] <G8KHW> yep rtty 425/50
[13:48] <G8KHW> 7 bit
[13:48] <G8KHW> ascii
[13:49] <G8KHW> not showing up on the tracker map though
[13:50] <Laurenceb> I'll fire up my icom in a bit
[13:51] <G8KHW> wow - its shifting up in frequency enough to make the lines on fldigi slightly diagonal
[13:52] <G8KHW> $$Badger,4156,12:52:18,52.2256,-0.0491098,5539.71,0,9,0,0,0,0,0.0
[13:53] <rhjharrison> Ok I'm getting the data but there is an extra field
[13:53] <rhjharrison> give me a sec
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[13:54] <G8KHW> 434649.5 is centre freq at the mo
[13:54] <SpeedEvil> wo
[13:54] <SpeedEvil> o
[13:55] <SpeedEvil> 6372 alt?
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[13:56] <Jcoxon> Hey
[13:56] <Jcoxon> Data is coming in
[13:56] <SpeedEvil> hey
[13:56] <SpeedEvil> sorry - some of it was me being very slow and not working out the IF
[13:56] <fergusnoble> nothing on the map though
[13:56] <Jcoxon> Steve. You'll need to turn logging on with fldigi
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[13:57] <fergusnoble> hi dan_strange
[13:57] <Jcoxon> In the config bit
[13:57] <G8KHW> $$Badger,4441,12:57:03,52.2363,-0.083681,6929.77,0,8,0,0,0,0,0.0
[13:57] <dan_strange> hey
[13:58] <SpeedEvil> $$badger,4452,12:57:12,52.2369,-0.085187,6985.21,3,8,0,0,0,0,0,0
[13:58] <Jcoxon> Yeah the data is in view.php
[13:58] <dan_strange> does anyone have a figure for the ascent rate?#
[13:59] <SpeedEvil> 65m in 15s
[13:59] <G8KHW> just passing 434650.0 centre frequency
[13:59] <SpeedEvil> or 4.2m/s or so
[13:59] <fergusnoble> dan_strange: bit speedy :(
[14:00] <Jcoxon> http://www.robertharrison.org/listen/view.php
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[14:00] <SpeedEvil> to 3.6
[14:00] <dan_strange> it is
[14:00] <Laurenceb> right icom time
[14:00] <dan_strange> was quite windy and hard to judge
[14:01] <dan_strange> thanks for the rate
[14:01] <SpeedEvil> 434649.3 ish
[14:01] <Jcoxon> Anything on the map?
[14:01] <G8KHW> yep
[14:02] <G8KHW> nice set of tracks now - just west of camb
[14:02] <Jcoxon> Oooo got it
[14:02] <Jcoxon> Steve is your logger working?
[14:02] <G8KHW> yep
[14:02] <Jcoxon> Or is it showing no new data?
[14:02] <Laurenceb> what frequency?
[14:02] <rhjharrison> jcoxon all go here
[14:02] <rhjharrison> Map is working
[14:03] <Jcoxon> Great
[14:03] <rhjharrison> ~434.650
[14:03] <Jcoxon> I can view the kml on my phone
[14:03] <rhjharrison> They added an extra field for the funof it
[14:03] <Jcoxon> Thats kind
[14:04] <G8KHW> actually - no its not working - fldigi is fine - but dl4 keeps reporting no new data
[14:04] <G8KHW> I tried re-starting it but the same
[14:04] <Jcoxon> You need to turn on logging
[14:04] <SpeedEvil> Is this an unusual level of drift?
[14:05] <rhjharrison> Do we know the balloon size?
[14:05] <Jcoxon> For fldigi
[14:05] <fergusnoble> 1.5kg
[14:06] <fergusnoble> if you load in the current prediction its matching up quite nicely
[14:06] <rhjharrison> where can I find that fergusnoble
[14:06] <SpeedEvil> file->logs
[14:06] <Laurenceb> cant see anything :-/ whats the frequency?
[14:06] <SpeedEvil> ifnore me
[14:06] <fergusnoble> http://www.srcf.ucam.org/~cuspaceflight/predict/index.php, enter 4.6ms ascent
[14:06] <rhjharrison> 434.650
[14:06] <SpeedEvil> 434649.8 or so
[14:06] <G8KHW> thats better
[14:07] <fergusnoble> rhjharrison: there is a link to get a kml
[14:07] <rhjharrison> fergusnoble I like the mod target icon
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[14:10] <G8KHW> the shift is more like 350Hz IMO
[14:10] <SpeedEvil> yeah - 425 is the outside of the waterfall indeed
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[14:11] <fergusnoble> iain_w: http://www.pegasushabproject.org.uk/track/track.kml to get in google earth
[14:13] <rhjharrison> When was launch?
[14:13] <rhjharrison> do e know the flight duration?
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[14:14] <fergusnoble> rhjharrison: at this ascent rate something like 2:40 maybe
[14:15] <SpeedEvil> 6.5m/s looks like ATM
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[14:15] <SpeedEvil> Squiggly graph.
[14:15] <SpeedEvil> Is that local, or is the transmitter a bit wobbly.
[14:15] <Tigga> 6.5 m/s
[14:16] <Tigga> eek
[14:16] <Tigga> can't be right
[14:16] <fergusnoble> btw, looks like on the tracker the heading is calculated from east rather than north
[14:16] <fergusnoble> Tigga: its been about 4.6m/s
[14:17] <iain_w> hi all, what's the ascent rate/ burst altitude that novas aiming for?
[14:17] <iain_w> Is it on a 1.5?
[14:17] <G8KHW> looks like the frequency drift has stopped at the mo
[14:17] <G8KHW> 434650.90
[14:18] <fergusnoble> iain_w: on a 1.5kg, was aiming for 2m/s :)
[14:18] <G8KHW> started off at 434648.50 when I first got it
[14:18] <fergusnoble> which would have possibly gotten up to 34km, I think this will go at more like 30km
[14:19] <G8KHW> 2.4KHz
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[14:19] <fergusnoble> or just a bit over
[14:19] <SpeedEvil> G8KHW I tappears to be oscillating over 20Hz or so over 10s or so intervals from here
[14:19] <SpeedEvil> where 'here' is the virtual here
[14:19] <G8KHW> yeah its wavering about a bit
[14:20] <iain_w> 30km will do for this one though, sounds good!
[14:20] <G8KHW> cf is more or less the same - just up and down about that spot
[14:22] <fergusnoble> iain_w: load in a landing prediction along side the track in google earth, its matching up quite well
[14:22] <Laurenceb> whats the frequency now?
[14:22] <G8KHW> i think the shift has gone down further
[14:22] <SpeedEvil> 434650.414
[14:23] <SpeedEvil> and yeah
[14:23] <SpeedEvil> shift looks maybe 300Hz even
[14:23] <fergusnoble> SpeedEvil: would you say there is any evidence that the shift has changed over the flight?
[14:24] <SpeedEvil> Not strong
[14:25] <SpeedEvil> but maybe
[14:25] <SpeedEvil> It was certainly never 450Hz when I've seen it
[14:25] <fergusnoble> ok, not sure how it was set up
[14:25] <SpeedEvil> 400Hz was a better match when I looked a bit ago
[14:25] <rhjharrison> They need to get their shift sorted :)
[14:25] <fergusnoble> it could have been set for 350
[14:25] <fergusnoble> its usually 425
[14:25] <rhjharrison> I'm off to higher ground
[14:26] <SpeedEvil> Looking at the FFT now, it looks like 90%+ of time the main lobes are inside 350
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[14:26] <fergusnoble> interesting
[14:26] <G8KHW> fergusnoble: Id say definatly less shift now - I have been using 350Hz shift for some time - and it was exactly on the bars - now its inside the bars
[14:26] <fergusnoble> even the slightest shift could have put the domino out
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[14:27] <fergusnoble> ok, thats good to know
[14:27] <G8KHW> yeah
[14:27] <rharrison_eee> boo
[14:27] <fergusnoble> with the domino there was only one value of spacing for the DAC that worked
[14:27] <rharrison_eee> I'm off to higher ground
[14:27] <fergusnoble> a single bit up or down and it wouldnt
[14:28] <SpeedEvil> hmm. Is it possible to set ftdigi to non standard rtty freq shifgts?
[14:28] <fergusnoble> SpeedEvil: nope, unfortunately
[14:28] <G8KHW> the wavering up and down is more pronounced now an speeded up
[14:28] <SpeedEvil> 450,350,240 is all it seems to offer - and 240 is too tight
[14:28] <fergusnoble> SpeedEvil: it tends to work even when not perfect though
[14:29] <G8KHW> teah I'd say it was a tad over 300
[14:29] <SpeedEvil> I assume the best position for the 'bars' is on the peak of the signal? Yes - not for now - oodles of signal.
[14:29] <SpeedEvil> but for following it into trees
[14:29] <SpeedEvil> peaks of the signal
[14:30] <G8KHW> seems to go up and down on a 8 seconds cycle
[14:30] <SpeedEvil> how long is the string?
[14:30] <fergusnoble> G8KHW: odd, could it be heating from when its facing the sun?
[14:30] <fergusnoble> some kind of effect of spinning?
[14:31] <G8KHW> Might be - but if its inside a container I doubt that
[14:31] <G8KHW> just too much damping for 8 seconds
[14:31] <SpeedEvil> could it be 10s?
[14:32] <fergusnoble> G8KHW: yeah, im not sure what the payload was like
[14:32] <G8KHW> its more like 7 seconds now
[14:32] <Laurenceb> wow 34Km
[14:32] <Laurenceb> that could be a record
[14:33] <G8KHW> ??? 17.4Km at the mo
[14:33] <Laurenceb> yeah, thats forecast
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[14:34] <Jcoxon> Hey
[14:35] <SpeedEvil> hey
[14:35] <fergusnoble> Laurenceb: it'll never get there at this speed
[14:35] <fergusnoble> jcoxon: hi
[14:35] <Laurenceb> its not drifting
[14:35] <Laurenceb> whats the cutdown set to?
[14:35] <fergusnoble> jcoxon, rharrison_eee: awesome job on the tracker, its working beautifully
[14:35] <fergusnoble> Laurenceb: no cutdown
[14:36] <Laurenceb> ah
[14:36] <SpeedEvil> 4km/h!
[14:36] <fergusnoble> (i think)
[14:36] <Laurenceb> oh its going up too fast your saying?
[14:36] <G8KHW> this is great - I havn't had to move the yagi at all
[14:36] <SpeedEvil> Damn near straight up
[14:36] <SpeedEvil> (20km/h up or so)
[14:36] <Jcoxon> Glad its working
[14:36] <Jcoxon> It needed a full test
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[14:37] <SpeedEvil> Jcoxon: much easier once I worked out how to enter frequencies properly, and worked out how to set my window size so it only has the appropriate window.
[14:38] <Jcoxon> Yeah its a funny format for the freq
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[14:39] <SpeedEvil> And FFT seems lighter on VNC bandwidth
[14:39] <Laurenceb> hmm its due north of me, and theres the rest of the building in that direction
[14:39] <fergusnoble> Laurenceb: are you picking it up?
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[14:39] <Laurenceb> no
[14:39] <SpeedEvil> Is this the most vertical of recent launches?
[14:40] <fergusnoble> SpeedEvil: one of the most
[14:41] <Laurenceb> whats the frequency now?
[14:41] <fergusnoble> dan_strange: hows it going in cambridge?
[14:41] <G8KHW> 434650.9
[14:42] <G8KHW> +/- 150Hz shift
[14:42] <Laurenceb> nothing :-/
[14:42] <Jcoxon> Should make an ncurses version of fldigi and ssh in
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[14:44] <SpeedEvil> And your screensaver breaks up horribly on VNC :)
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[14:45] <Jcoxon> Turn it off in settings
[14:45] <hallam> hey folks
[14:45] <hallam> how's the launch going?
[14:45] <SpeedEvil> Ok so far.
[14:45] <SpeedEvil> 21Km
[14:45] <SpeedEvil> damn near straight up
[14:45] <fergusnoble> hallam: got it up google earth?
[14:45] <SpeedEvil> 4Km/h or so horizontal, 20Km/h vertical
[14:46] <fergusnoble> hallam: its following the prediction really well :)
[14:46] <hallam> no - not seeing it on spacenear.us?
[14:46] <hallam> cool
[14:46] <SpeedEvil> http://www.pegasushabproject.org.uk/track/
[14:46] <dan_strange> Everything's packed away. we're retreating to Steve Raffes house to grab some lunch and then we'll go pick it up
[14:46] <fergusnoble> ok, cool
[14:46] <dan_strange> ciao
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[14:46] <Jcoxon> Speed. We are winning on lines logged!
[14:47] <SpeedEvil> :)
[14:48] <G8KHW> What I have noticed by listening to the signal is that the signal strength is going up and down on about the same 8 sec cycle as the frequency
[14:48] <G8KHW> so I suspect that the frequency change could be to do with antenna waving about
[14:49] <SpeedEvil> actually - yeah
[14:49] <SpeedEvil> you can see that on the fft quite clearly
[14:50] <hallam> looks good - I'll be back later on
[14:50] <Laurenceb> heading towards huntingdom
[14:50] <SpeedEvil> Though you could walk faster :)
[14:51] <SpeedEvil> Another 10-40 minutes I guess to burst.
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[14:54] <G8KHW> SpeedEvil: yes I see what you say
[14:54] <G8KHW> about the fft
[14:54] <SpeedEvil> IT's also bandwidth friendlier than the waterfall for vnc
[14:55] <SpeedEvil> Winding the decibels covered down to a sensible noise floor on the fft/waterfall helps too
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[14:56] <Laurenceb> whats the frequency now? I'll have one more try
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[14:56] <SpeedEvil> 434650.4
[14:56] <SpeedEvil> 320Hz or so shift
[14:57] <Laurenceb> usb ?
[14:57] <SpeedEvil> yes
[14:58] Action: SpeedEvil realises the reason for the 'USB' at the top-left, and feels stupid.
[14:58] <SpeedEvil> Acronym overload.
[14:59] <Jcoxon> :-) still looking good
[15:00] <G8KHW> USB - radio got there 1st
[15:01] <Laurenceb> nope nothing :/ this building sucks
[15:02] <SpeedEvil> heading back for the origin :)
[15:02] <G8KHW> its in the centre of the passband for 434649.0 USB
[15:02] <SpeedEvil> yeah - stick it at 650 dead, and you won't get a signal
[15:02] <G8KHW> i.e. 434650.5
[15:02] <G8KHW> +/- shift
[15:03] <Laurenceb> oh ok
[15:03] <G8KHW> Speedevil you have it centred on 434650.0?
[15:04] <SpeedEvil> 434649.5 is the frequency - it's coming in at ~900Hz at that
[15:04] <G8KHW> yeah - that more or less identical
[15:05] <G8KHW> within 100Hz or so
[15:05] <G8KHW> which isn't bad
[15:05] <SpeedEvil> fldigi is reporting 434650.421
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[15:05] <SpeedEvil> +-10Hz
[15:05] <MOTEK> yo all
[15:05] <Laurenceb> ok
[15:06] <SpeedEvil> yoyo
[15:06] <SpeedEvil> (with an 8s period)
[15:06] <Laurenceb> hi weird mayan god person
[15:06] <Laurenceb> hmm maybe theres just too much cellotex
[15:06] <Laurenceb> in here
[15:06] <G8KHW> bbl - going out - I'll just leave the DL running on the whip
[15:06] Action: SpeedEvil has 7 sheets in the corridor, and 2 sheets in the lounge.
[15:06] <Laurenceb> bah need roof mounted yagi
[15:07] Nick change: G8KHW -> G8KHW_Away
[15:07] <Laurenceb> hmm 27Km
[15:07] <MOTEK> she's heading back for us
[15:07] <SpeedEvil> It's not unlikely that it'll be bursting practically over the start
[15:08] <MOTEK> i don't think it'll make it back
[15:08] <fergusnoble> MOTEK: hello
[15:08] <SpeedEvil> yeah
[15:08] <SpeedEvil> 7m/s
[15:08] <MOTEK> pretty windy on ground but not so much up there
[15:08] <Laurenceb> it the stratosphere now
[15:08] <MOTEK> it was actually rather gusty on the ground. really tough to extract lift from the wind.
[15:08] <SpeedEvil> so 30km in a couple of mins
[15:09] <Laurenceb> going down the street
[15:09] <MOTEK> not much fun at all
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[15:11] <SpeedEvil> Jcoxon: your radio is in cambrige?
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[15:14] <fergusnoble> so close
[15:14] <SpeedEvil> couple more seconds
[15:14] <SpeedEvil> and 30km!
[15:14] <SpeedEvil> Let's hope for 40 :)
[15:14] <fergusnoble> yey
[15:15] <hallam> nice
[15:15] <SpeedEvil> what's on this one?
[15:15] <hallam> what's the predicted burst?
[15:15] <fergusnoble> hallam: it was overfilled, not sure if anyone run the spreadsheet again
[15:15] <fergusnoble> i would guess a bit over 30km
[15:16] <SpeedEvil> To get a latex balloon to the highest alt, you have a tiny payload, and a small margin only of lift excess?
[15:16] <fergusnoble> yup
[15:17] <hallam> it's a 3kg though?
[15:17] <fergusnoble> 1.5
[15:18] <hallam> oh
[15:18] <hallam> Jcoxon: love the little 0-40km bar chart
[15:18] <fergusnoble> 31km
[15:21] <hallam> 32
[15:21] <MOTEK> i have lost signal in churchill. whhip is on the wrong side of a large concrete building
[15:21] <hallam> what's with the 1970?
[15:21] <SpeedEvil> improper time format?
[15:21] <SpeedEvil> oh - there is no date
[15:22] <SpeedEvil> oh - it's heading down in freq again
[15:22] <Laurenceb> jcoxon: where is your ant?
[15:22] <SpeedEvil> Jcoxon's signal is still pinned to the top of the scale pretty much
[15:22] <Laurenceb> wow
[15:22] <SpeedEvil> 30dB over the noise if I'm reading it right
[15:23] <Laurenceb> I have a moxon ant as well, but its inside
[15:23] <Laurenceb> my room faces south :-/
[15:23] <Laurenceb> its due north
[15:23] <hallam> SpeedEvil: how are you seeing Jcoxon's signal strength?
[15:24] <SpeedEvil> vnc
[15:24] <hallam> ok
[15:24] <SpeedEvil> and fft display of the ssb otuput
[15:25] <fergusnoble> 33!!
[15:25] <hallam> woo, 33
[15:25] <hallam> current record is?
[15:25] <SpeedEvil> what's the rerod?
[15:25] <Laurenceb> 56Km, JAXA
[15:26] <fergusnoble> cusf est is 33,280
[15:26] <fergusnoble> *best
[15:26] <hallam> cool
[15:26] <fergusnoble> or was i should say
[15:26] <MOTEK> rharrison_eee: what is ukhas record?
[15:26] <hallam> what's rjharrison's?
[15:26] <fergusnoble> now 33391 and counting
[15:26] <Laurenceb> new record
[15:27] <fergusnoble> i think rjh got 33.8?
[15:27] <hallam> 352889
[15:27] <hallam> 35289*
[15:27] <hallam> bit of a way to go
[15:28] <hallam> come on Nova
[15:28] <SpeedEvil> I suppose it actually gains another 5m ballistically.
[15:28] <SpeedEvil> Do we count that?
[15:28] <fergusnoble> SpeedEvil: we count whatever the GPS reads
[15:29] <SpeedEvil> What's the payload on this?
[15:29] <Laurenceb> 34
[15:29] <hallam> 34k...
[15:29] <fergusnoble> nice
[15:29] <SpeedEvil> :)
[15:29] <hallam> SpeedEvil: cameras and some sponsor stuff
[15:29] Action: hallam wishes the star tracker was on it
[15:29] <SpeedEvil> Is it as clear down there as it is up here?
[15:29] <fergusnoble> blimey, its still going up
[15:29] <SpeedEvil> black sky time
[15:29] <Laurenceb> 1km to record
[15:30] <SpeedEvil> hallam: how heavy is your tracker?
[15:30] <hallam> it's very hazey here, but I don't think Boston is a very useful data point for you
[15:30] <SpeedEvil> I mean in cambridge :)
[15:31] <hallam> SpeedEvil: about 120g
[15:31] <hallam> exc. batteries
[15:31] <SpeedEvil> Nice
[15:31] <fergusnoble> the adger you mean?
[15:31] <SpeedEvil> GEtting close to another nice round.
[15:31] <hallam> rharrison_eee: look out
[15:31] <SpeedEvil> hmm - signal probs
[15:31] <hallam> fergusnoble: I meant the star tracker
[15:31] <SpeedEvil> nope - still up
[15:32] <fergusnoble> yeah
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[15:32] <fergusnoble> this payload was something like 2.6kg uuw
[15:32] <fergusnoble> *auw
[15:33] <hallam> wow
[15:33] <hallam> hefty
[15:33] <fergusnoble> come on!
[15:33] <hallam> I guess that was the [redacted]
[15:33] <hallam> schweet, 35
[15:33] <SpeedEvil> oops
[15:33] <fergusnoble> ooh that awesome
[15:33] <hallam> 284m to go
[15:33] <fergusnoble> just kissed 35
[15:33] <fergusnoble> no its burst
[15:33] <hallam> aw
[15:34] <hallam> but still very nice
[15:34] <fergusnoble> max alt 35005
[15:34] <fergusnoble> :)
[15:34] <hallam> I see 35076
[15:34] <Laurenceb> bah
[15:34] <Laurenceb> yeah 35076
[15:34] <SpeedEvil> It fell off the bottom of the audio passband, and I diddn't notice the cause of it not demodding
[15:35] <Laurenceb> 213m off
[15:35] <SpeedEvil> So I diddn't quite get the peak
[15:35] <hallam> I bet rharrison_eee is standing somewhere with a sniper rifle
[15:35] <Laurenceb> wow its coming down fast
[15:35] <hallam> well it will in that thin air
[15:36] <SpeedEvil> 50m/s
[15:36] <iain_w> oh well, no record this time, but it was never intended for it! not bad for a 1.5kg though
[15:36] <hallam> yeah v impressive especially with such a heavy payload
[15:36] <hallam> c.n. will be pleased
[15:37] <Laurenceb> it'll be good to see the photos
[15:37] <Laurenceb> right bbl
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[15:44] <SpeedEvil> can I has bogon?
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[15:46] <rjharrison> close
[15:46] <rjharrison> I nearly lost my position there
[15:48] <fergusnoble> wow, looks like it might land right next to longstanton airport
[15:49] <SpeedEvil> still data - but mostly garbage
[15:49] <SpeedEvil> definately the right signal
[15:50] <iain_w> fergusnoble: what's the pred co-ords of landing?
[15:50] <fergusnoble> iain_w: not got exact ones
[15:51] <iain_w> p.s. longstanton has an airport????
[15:51] <fergusnoble> somewhere between cottenham and longstanton
[15:51] <fergusnoble> well, some kind of airstrip
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[15:54] <fergusnoble> nobody getting any more data?
[15:54] <SpeedEvil> got 3 good lines I think
[15:54] <SpeedEvil> 434645 or so
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[15:54] <rjharrison> Yep I'm getting loads
[15:55] <rjharrison> 10218
[15:55] <rjharrison> alt
[15:55] <SpeedEvil> 10128
[15:56] <rjharrison> This is in Leeds too
[15:56] <rjharrison> Well just outside
[15:56] <SpeedEvil> ok - that looks better
[15:56] <rjharrison> 9440
[15:56] <G8KHW_Away> is it still up?
[15:56] <SpeedEvil> afc seems to have problems - perhaps due to the shift - which looks lits less than 350
[15:56] <rjharrison> Where is the predictor again?
[15:57] <SpeedEvil> 9250m
[15:57] <rjharrison> Yep
[15:57] Nick change: G8KHW_Away -> G8KHW
[15:57] <rjharrison> 9250
[15:57] <rjharrison> hehe
[15:57] <SpeedEvil> seems to be drifting down at 2Hz/s
[15:58] <rjharrison> Max reading was 10247 14:33:58 Alt 35115
[15:59] <rjharrison> going up mow
[15:59] <rjharrison> now
[15:59] <rjharrison> it the temperature
[15:59] <hallam> the airfield is RAF Oakington which is disused
[15:59] <hallam> they might do car racing or something there now, don't know
[16:00] <rjharrison> Where is the predictor?
[16:02] Action: SpeedEvil lost it as it fell off the top end - where is it - freq?
[16:03] <rjharrison> 645.40
[16:03] <rjharrison> 434 obv
[16:03] <rjharrison> 434.645.40
[16:03] <rjharrison> 6406 alt
[16:04] <hallam> fergusnoble: they're not actually going to walk, right?
[16:05] <fergusnoble> no, theyre in the car near cottenham now
[16:07] <rjharrison> loosing signal
[16:07] <rjharrison> 4400M
[16:07] <SpeedEvil> 'cadger'
[16:08] <G8KHW> gone
[16:08] <G8KHW> for me
[16:08] <SpeedEvil> yeah
[16:09] <Laurenceb> its down?
[16:09] <Laurenceb> 2.7km
[16:10] <G8KHW> yeah fldigi had real problems keeping up with the drift
[16:10] <G8KHW> at the end
[16:11] <G8KHW> the trace was almost 45degrees
[16:11] <SpeedEvil> I'm unsure
[16:11] <SpeedEvil> It was actually afcing correctly for me - it just fell into the noise
[16:11] <SpeedEvil> But
[16:11] <SpeedEvil> not demodulating - the
[16:12] <SpeedEvil> AFC seems to get the optimum position a bit wrong with the shift
[16:12] <G8KHW> need some polystyrine round the tx - or keep it constant tempreture
[16:12] <SpeedEvil> with the non-standard shift
[16:12] <G8KHW> yeah I guess
[16:13] <Laurenceb> what was the descent rate?
[16:13] <rjharrison> Where abouts
[16:13] <rjharrison> At the beginning pretty fast
[16:13] <Laurenceb> at the end
[16:13] <SpeedEvil> I think I lost it maybe 2.8Km
[16:14] <rjharrison> The last sentence from the listeners was :
[16:14] <rjharrison> M0TEK : Badger,12271,15:07:43,52.282,0.167385,2763.92,4,4,0,0,0,0,0.0
[16:15] <G8KHW> bbl
[16:15] <rjharrison> fergusnoble: you on the road with CUSF?
[16:15] Nick change: G8KHW -> G8KHW_Away
[16:16] <SpeedEvil> I think 12258 was the last really sensible partial I had
[16:16] <Laurenceb> prob down in those fields somewhere
[16:16] <rjharrison> What did you all think of the listener passing the data through to the tracker
[16:17] <rjharrison> 12160 for me
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[16:18] <SpeedEvil> 12172 looks like the last line without errors
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[16:19] <fergusnoble> rjharrison: nope, at home guiding them in
[16:20] <rjharrison> Cool
[16:20] <rjharrison> Do U have a final yet?
[16:20] <fergusnoble> nope
[16:20] <fergusnoble> theyre just getting the radio out i think
[16:20] <rjharrison> Whos radio is out there
[16:20] <SpeedEvil> It was going 4km/h or so still - horizontally - but down at 30km/h or so
[16:20] <SpeedEvil> at 2.7km
[16:20] <fergusnoble> its the cusf yaseu i think
[16:21] <rjharrison> Arse so not on the listener then
[16:21] <Laurenceb> its prob down in those fields then
[16:21] <SpeedEvil> which would put it a couple of hundred metres from 52.282,0.167385 or so
[16:21] <rjharrison> James and I were pleased with the success of the listener
[16:22] <rjharrison> About 1500 clean sentances logged
[16:22] <SpeedEvil> A scale on the tracker map would be v handy
[16:24] <rjharrison> Will look into
[16:25] <SpeedEvil> yeah - just at the end of the next field or so makes sense
[16:25] <SpeedEvil> the multicoloured one
[16:28] <Laurenceb> photos should be good
[16:28] <Laurenceb> grr I'm still trying to get the rogallo working :-/
[16:29] <Laurenceb> goes into a reset loop after a few minutes
[16:33] <SpeedEvil> :/
[16:33] <rjharrison> memory leak?
[16:33] <Laurenceb> its c
[16:33] <Laurenceb> something to do with the radio
[16:34] <Laurenceb> it resets the radio at bootup, and that works
[16:34] <Laurenceb> but the second time it tries to reset the radio, something goes wrong
[16:34] <Laurenceb> the radio appears to reset, but the flight computer doesnt detect it
[16:34] <Laurenceb> meanwhile the radio goes into a 1Hz reset loop
[16:35] <Laurenceb> and the flight computer stops sending messages as it realises the radio isnt responding correctly
[16:35] <Laurenceb> its not helped by the bootloader on the radio, which takes 300ms before the main code starts running
[16:36] <Laurenceb> however, the bootloader shouldnt be sent anything from the flight computer, so it should exit
[16:37] <Laurenceb> i need a scope :-/
[16:37] <Laurenceb> even if I pull the reset line low on the radio, nothing is registered on the flight computer
[16:38] <SpeedEvil> :/
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[16:39] <Laurenceb> for(n=255;n;n--){;} will loop right?
[16:39] Action: SpeedEvil finds fldigis keys
[16:39] <SpeedEvil> pgup/dow
[16:39] <SpeedEvil> make things lots easier
[16:39] <SpeedEvil> yes
[16:40] <Laurenceb> hmf.. I set a 0 pulse on the CTS line at bootup
[16:41] <Laurenceb> that should cause an interrupt on the flight computer
[16:41] <Laurenceb> is cartainly works the first time
[16:43] <Laurenceb> hmm maybe spotted something
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[16:43] <jcoxon> hey all
[16:43] <Laurenceb> I'm not actually sure the line ever goes low
[16:43] <Laurenceb> hi
[16:43] <Laurenceb> new CUSF record
[16:43] <sbasuita> jcoxon, how did the flight go?
[16:44] <jcoxon> not sure
[16:44] <jcoxon> i wasn't around :-D
[16:44] <jcoxon> but it seems like it went well
[16:44] <sbasuita> jcoxon, is it generally better in terms of wind to launch in the summer?
[16:45] <jcoxon> yes, though the JS changes on individual days
[16:45] <rjharrison> Hi james
[16:45] <rjharrison> You destinated
[16:45] <jcoxon> you want high pressure systems really
[16:45] <jcoxon> as they have less wind
[16:45] <jcoxon> hey rjharrison
[16:45] <jcoxon> yeah i'm at home
[16:46] <rjharrison> Listener was awsume
[16:46] <rjharrison> The track is really good
[16:47] <jcoxon> yeah thats a lot of data in view.php
[16:48] <jcoxon> have they retrieved it yet?
[16:51] <rjharrison> fergusnoble: is coordinating
[16:51] <fergusnoble> nope, cant get radio on the ground
[16:51] <fergusnoble> erm, i have to leave in about half an hour or so, if they havnt got it y then is anyone else ale to help be their eye in the sky?
[16:51] <Laurenceb> what, they've driven close now?
[16:51] <fergusnoble> Laurenceb: its uncertain where exactly it ended up
[16:51] <rjharrison> Yep
[16:52] <rjharrison> I will
[16:52] <rjharrison> jcoxon is a pro too
[16:52] <fergusnoble> rjharrison: ill email you the prediction i was using
[16:52] <jcoxon> i'm not on a good 'puter
[16:52] <jcoxon> but i'll have a look
[16:52] <rjharrison> Actually crap I need to pick kids up at 6pm
[16:53] <fergusnoble> jcoxon: whats your email?
[16:53] <jcoxon> jacoxon@googlemail.com
[16:54] <fergusnoble> ok, sent
[16:54] <fergusnoble> its not that good but you can use it to see the general trend
[16:54] <fergusnoble> along with the tracker data
[16:54] <fergusnoble> interestingly it looks like there is a change in descent rate near the end
[16:55] <fergusnoble> a sharp increase
[16:55] <jcoxon> just reinstalling google earth
[16:55] <fergusnoble> hehe
[16:55] <jcoxon> its my mothers computer
[16:55] <jcoxon> tis rubbish
[16:56] <jcoxon> SpeedEvil: good work with the tuning
[16:57] <jcoxon> do we get a prize for winning number of lines logged?
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[16:57] <Laurenceb> jcoxon: whats happening with the trans?
[16:58] <Laurenceb> did you send off the level sensor?
[16:58] <jcoxon> no i still have it
[16:58] <jcoxon> i'm going to test the ballast tank in the UK
[16:58] <jcoxon> in regards to the trans we've slowed down development
[16:59] <jcoxon> as there are a number of admin things to sort out such as permission
[16:59] <jcoxon> (as was discussed in the email)
[16:59] <Laurenceb> yeah
[17:00] <rjharrison> jcoxon: not this time
[17:00] <rjharrison> I think location helps and of course the coxon moxon
[17:01] <rjharrison> 493 is a good set of loggs
[17:01] <rjharrison> Be interested to hear feedback on the listener. I think the speed of updates brings it alive for every one
[17:03] <jcoxon> fergusnoble: where are they looking now?
[17:06] <rjharrison> It may have ended up in cottenham
[17:07] <Laurenceb> itr was coming down fast
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[17:11] <fergusnoble> jcoxon: just running a pred from the last point
[17:11] <SpeedEvil> I make it about 200-300m west of the last point
[17:11] <jcoxon> so its descending at about 12m/s
[17:11] <SpeedEvil> it was going down at 10m/s or so, and only blowing at 1-2m/s
[17:11] <jcoxon> so that gives it another 230 seconds of flight time
[17:14] <jcoxon> hmmm i make it 87m between the last points horizontally
[17:14] <jcoxon> in 10 seconds
[17:14] <SpeedEvil> are you sure that it's 10s?
[17:14] <SpeedEvil> not missing points?
[17:15] <jcoxon> looking at the raw data
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[17:16] <jcoxon> M0TEK : Badger,12258,15:07:33,52.2817,0.168652,2881.01,1,6,0,0,0,0,0.0
[17:16] <rjharrison> any sign of life?
[17:16] <jcoxon> M0TEK : Badger,12271,15:07:43,52.282,0.167385,2763.92,4,4,0,0,0,0,0.0
[17:16] <rjharrison> That was the last log
[17:16] <SpeedEvil> Err
[17:16] <SpeedEvil> oh
[17:17] <rjharrison> ~10m/s
[17:17] <SpeedEvil> err
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[17:17] <SpeedEvil> isn't the number after the altitude the speed in knots?
[17:18] <rjharrison> no idea
[17:18] <Laurenceb> km/h on the tracker
[17:18] <Laurenceb> nmea is in knots
[17:18] <jcoxon> yeah they don't match
[17:18] <jcoxon> as in it isn't speed
[17:18] <Laurenceb> but iirc they use tsip
[17:18] <hallam> any news on the recovery?
[17:18] <jcoxon> i think you want to start looking 52.286766 0.140286
[17:19] <fergusnoble> jcoxon: sent a new prediction from the last point
[17:19] <rjharrison> I think it may a looong evening ahead if the radio has gone down. Is there any backup?
[17:20] <fergusnoble> hallam: they cant get the radio on the ground
[17:20] <Laurenceb> fergus: they cant pick it up?
[17:20] <fergusnoble> but theres a chance they just werent close enough to it to get it
[17:20] <Laurenceb> yeah
[17:20] <hallam> could the impact really have been hard enough to take out Badger?
[17:20] <rjharrison> fergusnoble: Do they have the new yagi?
[17:21] <hallam> this is why we need a chase plane ;)
[17:21] <rjharrison> lol
[17:21] <fergusnoble> from the latest prediction it looks like the nearest they tried to listen to it was a bit less than 1km
[17:21] <fergusnoble> rjharrison: yup
[17:21] <Laurenceb> need a hook to catch it in mid air
[17:21] <hallam> yeah that could well not be close enough
[17:21] <hallam> if it landed on the antenna
[17:22] <fergusnoble> Laurenceb: like the old spy sats used to get the film ack
[17:22] <Laurenceb> yeah
[17:22] <hallam> I think we were closer than that when we picked up nova 10
[17:22] Nick change: Bluenarf -> EI5GTB
[17:23] <fergusnoble> hallam: it landed pretty hard though
[17:23] <fergusnoble> might have died
[17:23] <fergusnoble> the ascent rate shot up at aout 5.5km from the deck
[17:23] <Laurenceb> make it tree seeking
[17:24] <fergusnoble> to 16m/s
[17:24] <SpeedEvil> what lenght of string was on the payload?
[17:24] <Laurenceb> I was thinking about making the rogallo tree avoiding
[17:24] <fergusnoble> SpeedEvil: dunno, didnt see it rigged
[17:24] <Laurenceb> using a webcam sensor
[17:25] <Laurenceb> http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=4965068
[17:26] <Laurenceb> hallam: where did you get the lens for your startracker?
[17:26] <SpeedEvil> ooh - neat
[17:27] <jcoxon> fergusnoble: any update on where abouts teh recovery crew are?
[17:27] <Laurenceb> cheap as well
[17:28] <hallam> Laurenceb: http://www.mars-cam.com/lenses/ccd_cmos/44.html
[17:28] <Laurenceb> thanks
[17:28] <SpeedEvil> Aha - page 9 of that DS
[17:29] <SpeedEvil> minimum illumination onto chip - 80mW/m^2
[17:30] <Laurenceb> hmm need longer focal lenght
[17:31] <hallam> can you even get the image out of that thing?
[17:31] <Laurenceb> yes
[17:31] <Laurenceb> but I want to use it for landing
[17:32] <SpeedEvil> As I read it you get one pixel per image
[17:32] <Laurenceb> its 255 pixels
[17:32] <SpeedEvil> Though at 1500FPS, 1500/255 = only 1/6ths or so
[17:32] <Laurenceb> really, where
[17:33] <Laurenceb> I read it as just limited by the spi speed
[17:33] <SpeedEvil> page 34
[17:33] <jcoxon> right i'm off
[17:33] <jcoxon> good luck in finding it!
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[17:33] <rjharrison> to find a balloon
[17:33] <SpeedEvil> 'the pixel address and data will then be incremented on the next frame'
[17:34] <Laurenceb> bah yeah
[17:34] <Laurenceb> hmm theres other avago sensors where that might not be the case
[17:34] <SpeedEvil> and the sensor picks the pixels, you can't seem to dump a random pixel
[17:34] <SpeedEvil> yeah
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[17:35] <Laurenceb> I picked that as it has higher relative motion rate
[17:36] <Laurenceb> annoyingly none of those cameras have long enough focal lenght
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[17:37] <SpeedEvil> why do you want that?
[17:37] <SpeedEvil> oh - you're actually using it as an imager
[17:37] <SpeedEvil> I forgot
[17:37] <hallam> Laurenceb: can't you just put a new lens on it?
[17:37] <Laurenceb> thats the idea
[17:38] <Laurenceb> epoxy a lens onto it
[17:39] <Laurenceb> I guess the V-4416.0-1.2-HR may just be acceptable
[17:40] <hallam> that's the one I used for the star tracker
[17:40] <Laurenceb> pixles are something like 0.03mm square
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[17:41] <Laurenceb> so yeah that would work ok
[17:41] <Laurenceb> 5cm per pixel at 25m
[17:41] <Laurenceb> pretty much ideal
[17:42] <hallam> are you going to use something with a bit more CPU to do the tree detection?
[17:42] <SpeedEvil> what are you using this again?
[17:42] <SpeedEvil> for again
[17:43] <hallam> how about doing something based on the colour?
[17:43] <SpeedEvil> I mean - won't the existing firmware work just fine?
[17:43] <Laurenceb> it will
[17:43] <Laurenceb> so thats what I'll use
[17:47] <Laurenceb> whats the aperture?
[17:47] <hallam> f/1.2
[17:48] <Laurenceb> so 19.2 is the diameter of the aperture?
[17:48] <shellevil> note that the sticky out bit on the paackage will vignette
[17:48] <shellevil> if it doesn't actually have a lens in it
[17:49] <Laurenceb> the aperture is 19.2mm diameter?
[17:50] <hallam> no, 16/1.2 = 13.3mm
[17:50] <Laurenceb> ah
[17:52] <shellevil> 0.8mm apature - what - 6mm below the chip?
[17:53] <Laurenceb> more like 3
[17:53] <shellevil> Which will limit you to F/3 or so
[17:53] <shellevil> ?
[17:53] <Laurenceb> yeah
[17:54] <Laurenceb> hmm the aperutre is too big
[17:54] <Laurenceb> the sensor will be saturated
[17:54] <shellevil> 80mW/m^2
[17:54] <shellevil> that's minimum
[17:54] <Laurenceb> about 0.34*albedo*solar constant
[17:55] <Laurenceb> could be over 30W/m^2
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[17:55] <shellevil> that's 800mW or so counting 0.1 albedo, and 8W/m^2 counting a slow lens
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[17:55] <shellevil> so it'll work OK on cloudy days
[17:55] <shellevil> look at the max number though, it's lots higher
[17:55] <sbasuita> Laurenceb, wouldn't it be easier to use a set of predefined "no-go" zones around your target landing area? The rogallo could just use gps to steer clear of them?
[17:56] <Laurenceb> well alternative landing sites is better
[17:56] <sbasuita> Laurenceb, better than intensive cpu image processing?
[17:56] <Laurenceb> but it still wants to turn into the wind just before touchdown
[17:56] <Laurenceb> thats done for me
[17:57] <Laurenceb> shellevil:the equation is solar_down*albedo/(8*rel_aperture)
[17:58] <Laurenceb> * the equation is solar_down*albedo/(8*rel_aperture^2)
[17:58] <shellevil> :)
[17:58] <Laurenceb> its close to saturating the sensor
[17:58] <shellevil> sunglasses
[17:59] <Laurenceb> the 12mm lens may work
[18:00] <shellevil> or just put a pinhole over the lens
[18:00] <Laurenceb> yeah
[18:01] <shellevil> I wonder if they can do sun sensors
[18:01] <Laurenceb> should work
[18:01] <Laurenceb> would need a short focal langht
[18:02] <Laurenceb> maybe some sort of fisheye lens
[18:04] <Laurenceb> whats the solar constant at ground level?
[18:05] <shellevil> 1000W/m^2
[18:05] <shellevil> pretty much
[18:06] <shellevil> depends on how high the sun is in the sky - air mass
[18:06] <shellevil> and clouds and haze and stuff
[18:07] <Laurenceb> yeah looks like need at least rel aperture of 2
[18:14] <Laurenceb> grr
[18:14] <Laurenceb> it needs more dynamic range
[18:16] <hallam> it's a freaking optical mouse, what do you expect? :P
[18:16] <Laurenceb> I'd be tempted to go with the 1.2 aperture
[18:16] <Laurenceb> it'd work in cloudy conditions and only saturate when looking at white things in strong sunlight
[18:17] <Laurenceb> you could always add a pinhole
[18:19] <Laurenceb> it should give you pretty good altitude over ~1 to 100m
[18:22] <iain_w> hi all, what's the news on picking up nova?
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[18:27] <Laurenceb> ed, recovered?
[18:30] <hallam> hi edmoore
[18:30] <edmoore> no
[18:30] <edmoore> busy
[18:33] <G8KHW_Away> SpeedEvil: any idea what the total shift was today due to tempreture - I made it about 5KHz
[18:34] Nick change: G8KHW_Away -> G8KHW
[18:36] <shellevil> umm
[18:36] <shellevil> of that order
[18:36] <shellevil> I think it started out at -2 or so
[18:36] <shellevil> went up to maybe 2
[18:37] <shellevil> (650-2)
[18:37] <G8KHW> the 1st frequency I have is 434648.5
[18:37] <shellevil> oh - right - I commented about it a few times
[18:37] <G8KHW> and it ended up at about 434645...
[18:38] <G8KHW> but at some point in the flight it was 434650.9 - cos I wrote that down too
[18:39] <G8KHW> i'll look back at the logs
[18:39] <G8KHW> bbl
[18:45] <sbasuita> Is the comma after <altitude> and before <custom data> in the protocol http://wiki.ukhas.org.uk/communication:protocol mandatory?
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[18:59] <Laurenceb> hallam: how much for that lens?
[19:00] <hallam> price is on the page
[19:00] <hallam> $40 or something
[19:01] <hallam> sbasuita: I think at the very least it's a good idea
[19:01] Action: Laurenceb gets a wider monitor
[19:01] <sbasuita> hallam, that puts a single string of telemetry at just under 5 seconds
[19:02] <sbasuita> hallam, is 50 baud really the fastest we should be going?
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[19:03] <hallam> 300 works too, but 50 works better with weak signals
[19:03] <hallam> and if you've been following the launch today you'll appreciate why that can be useful
[19:04] <hallam> is the extra 200 milliseconds for the comma really going to kill you?
[19:04] <sbasuita> hallam, hehe ;P
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[19:05] <sbasuita> hallam, we were considering shortening the callsign from ALIEN-1 to just A1. That won't cause any trouble will it?
[19:05] <hallam> should be fine
[19:05] <sbasuita> cool
[19:05] <hallam> Hi dan - any news?
[19:08] <dan> jeremy and I are back running sims trying to get a better estimate of the landing position
[19:09] <dan> We've narrowed it down to a about a 4 square km area...
[19:09] <dan> but suspect the radio might be dead
[19:09] <dan> Ed, Rob and Steve are back out and are going to walk the line
[19:10] <hallam> what's the ground like?
[19:10] <hallam> any hills?
[19:10] <dan> nope
[19:10] <dan> pretty flat
[19:11] <Laurenceb> getting dark soon
[19:12] <Tigga> dark is bad
[19:14] <hallam> were there fresh batteries in the badger?
[19:18] <DanielRichman> AVR Interrupts: You know using the ISR macro to make an interrupt in avr-libc/gcc (eg, ISR (TIMER1_COMPA_vect)) disables global interrupts while it is running and then re-enables at the end... If you have a lot going on, and many different types of Interrupts, doesn't that mean that you could miss an interrupt? If something fires an interrupt while global-interrupts have been disabled by ISR, what happens to that interrupt? I guess that its
[19:18] <DanielRichman> not queued... could this be bad?
[19:22] <Laurenceb> no they are queued
[19:22] <G8KHW> interrupts don't get queued - but the flag will be set when you re-enable interrupts
[19:22] <G8KHW> so any that you have pending will com in then
[19:23] <hallam> not necessarily in the same order that they occured in
[19:23] <hallam> but they'll still be flagged
[19:23] <Laurenceb> yeah, thats what I meant :P
[19:23] <Laurenceb> avr doesnt have interrupt prioritios
[19:23] <G8KHW> so whether its bad or not depends on what you are doing
[19:23] <DanielRichman> That's fine, I was worried that if I sit waiting for the UART-ready interrupt, and it gets fired during the 50hz radio thing, it would get lost and I'd never get to send the next byte, but that's great
[19:23] <Laurenceb> priorities
[19:24] <G8KHW> if you disable intterupts for long enough then you loose multiple intterupts
[19:24] <DanielRichman> G8KHW, I'll keep the interrupt routines short then
[19:25] <DanielRichman> Any idea how many it can keep track of before they get lost?
[19:25] <G8KHW> if your using the intterupts for timing (generating RTTY) then that will spoil the character
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[19:26] <G8KHW> for rtty is best to disable intterupts between characters if you have to at all
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[19:26] <DanielRichman> Ah, I see what you mean
[19:27] <DanielRichman> But, if the clock speed is 16Mhz, and the rtty is only at 50hz... It can't be that bad?
[19:28] <G8KHW> yeah 5 characters per sec
[19:28] <G8KHW> it all depends on whats going n and for how long
[19:28] <Laurenceb> G8KHW: you can lose interrupts?
[19:29] <Laurenceb> you mean if multiple characters arrive?
[19:29] <DanielRichman> Yeah. If the interrupt routines are very efficient, then I guess it should be ok. Need to do some testing!
[19:29] <G8KHW> laurenceb: sure if you disable longer than the inter intterupt period
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[19:30] <G8KHW> then you have had multiple hidden intterupts
[19:30] <Tigga> hallam: yeah - fresh. How long do you think they'll last?
[19:30] <hallam> basically if you don't have any actual delays in your interrupt routine, it'll probably be fine
[19:31] <G8KHW> Laurenceb: the intterupt flag will still be set but multiple intterupts have occured
[19:31] <Laurenceb> got you, sure
[19:31] <hallam> Tigga: probably not overnight
[19:32] <hallam> it's something like 200mA draw I think?
[19:32] <hallam> so that gives about 8 hours
[19:32] <G8KHW> for timing 50baud RTTY - I would be keeping the maximum disable period as about 2ms (10%)
[19:33] <hallam> I'm sure Ed and Rob are doing everything they can - if i were them I would focus on surveying as many locations as possible within the predicted landing area with radio
[19:33] <rjharrison> sbasuita: You should have that comma in that is how we separate the fields
[19:33] <hallam> and leave visual searching to tomorrow
[19:34] <Tigga> we have them going along a line of likely landing points
[19:34] <DanielRichman> Did they only have Radio or was there anything else as backup?
[19:34] <sbasuita> rjharrison, ok
[19:34] <hallam> DanielRichman: just radio I think
[19:34] <rjharrison> sbasuitabL no
[19:34] <rjharrison> np
[19:34] <Tigga> but we've been within ~100m of all of them and checked with the radio
[19:35] <Tigga> so probably either a dead radio or a ditch
[19:35] <hallam> done a proper 360 check with the yagi at all of them?
[19:35] <Tigga> given the speed it may have hit the ground... dead radio might be possible
[19:35] <Tigga> yeah - for about 5 mins each
[19:35] <DanielRichman> How high up was it when you lost radio?
[19:36] <Tigga> last point is 2.7km
[19:36] <hallam> do the ground winds match the grib predictions?
[19:36] <G8KHW> yeah - if you think you have been within 1km and havn't heard it I would say its likly to be dead (or antanna snapped off etc).
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[19:38] <Tigga> hallam: it was pretty still
[19:39] <hallam> I wonder if it's worth getting Steph to fly someone over the search area at 500ft tomorrow
[19:39] <Tigga> hehe
[19:40] <hallam> I'd do it if I were there
[19:41] <Tigga> it's annoyingly mysterious
[19:41] <G8KHW> have you guys got any ascent data other than the distributed listener - it didn't get going until about 7Km
[19:42] <Tigga> the descent rate drops rather sharply
[19:42] <Tigga> I would have thought that Ed's would have picked it up
[19:43] <Tigga> sorry - increases rather sharply
[19:43] <hallam> as if the parachute detached or something?
[19:43] <Tigga> which gives us quite a large spread of landing points depending on quite what happened
[19:43] <Tigga> aye
[19:44] <hallam> there's no possibility that the descent rate increase is just bad telemetry?
[19:45] <Tigga> last 5 data points all show it
[19:45] <hallam> I guess best bet is just to try to refine the predictions tonight, and go look tomorrow
[19:46] <hallam> good luck :/
[19:46] <Laurenceb> anyone still out there?
[19:46] <Tigga> well... dropping from 2.7km with unknown descent rate
[19:46] <hallam> do you have the latest prediction? (just for my google earth curiosity)
[19:47] <Tigga> it's rather hard to refine
[19:47] <hallam> can't you get an estimate of the desc rate from those 5 data points?
[19:47] <Tigga> have done
[19:47] <Tigga> no payload there
[19:47] <hallam> ah
[19:47] <hallam> bums
[19:47] <hallam> looked really hard?
[19:48] <Laurenceb> is there any thick grass/crops?
[19:48] <hallam> it'll be hard to see if the parachute fell off
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[19:49] <Tigga> http://www.srcf.ucam.org/~cuspaceflight/predict/flight_path.kml
[19:49] <Tigga> no - we could look harder
[19:49] <Tigga> probably tomorrow given the light levels
[19:49] <Tigga> it's a bit discrete
[19:50] <Tigga> could make it better... but then descent rate +/- 0.5m/s makes a huge difference
[19:50] <hallam> at least it's fields
[19:50] <hallam> better get the landowner's permission before looking *really* hard
[19:50] <hallam> I'll be back later - good luck
[19:50] Nick change: hallam -> hallam|away
[19:52] <Laurenceb> so everyones given up for the night?
[19:54] <Tigga> nah
[19:54] <Tigga> we have three people poking fields
[19:54] <Tigga> they're giving up soon
[19:55] <Laurenceb> http://www.fourmilab.ch/cgi-bin/Earth/action?opt=-p
[19:56] <Tigga> yeah... we'd noticed
[20:01] <Laurenceb> any leds?
[20:02] <dan> nope
[20:02] <Tigga> not externally
[20:08] <rjharrison> Laurenceb: LOL
[20:14] <Laurenceb> what?
[20:21] AlexBreton (n=Alexande@client-86-25-182-53.bkl-bng-012.adsl.virginmedia.net) left irc:
[20:26] AlexBreton (n=Alexande@client-86-25-182-53.bkl-bng-012.adsl.virginmedia.net) joined #highaltitude.
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[20:29] <Laurenceb> http://www.youtube.com/watch?v=s7UJ66u941g
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[21:01] <Laurenceb> http://news.bbc.co.uk/1/hi/business/7979483.stm
[21:01] <Laurenceb> ^ lol
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[21:05] <rjharrison> humm
[21:14] <rjharrison> ping G8KHW
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[21:36] Hiena (n=Hiena@81.93.195.181.datatrans.hu) left irc: "-=Mi ez a szag? Hippit égettéll?=-"
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[21:57] <shellevil> :/
[21:57] <shellevil> is there an address label?
[22:12] AlexBreton (n=Alexande@client-86-25-182-53.bkl-bng-012.adsl.virginmedia.net) left irc:
[22:14] <Laurenceb> cya all, good luck
[22:14] Laurenceb (n=laurence@dyres221-35.surrey.ac.uk) left irc: "The day microsoft make something that doesnt suck is the day they make a vacuum cleaner"
[22:20] <rjharrison> .
[22:20] <rjharrison> any news
[22:21] <shellevil> nope
[22:21] <shellevil> :/
[22:22] <shellevil> oh - thought ypu'd just joined
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[22:24] Action: shellevil supposes it's dark there, so they'll have given up now
[22:52] <G8KHW> rjharrison: you pinged
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[00:00] --- Fri Apr 3 2009