highaltitude.log.20090113

[00:13] rjharrison (n=rharriso@80.176.172.227) left irc:
[00:20] <Laurenceb> Think I'm going to finally get myself a flickr account
[00:21] <Laurenceb> oh god yahoo ids
[00:34] <Laurenceb> hmm seems to work :P
[00:34] <Laurenceb> http://www.flickr.com/photos/34315036@N04/
[00:34] <Laurenceb> some photos of constyruction work :D
[00:34] <natrium42> ooh
[00:35] <natrium42> so you did actually do it!
[00:35] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) left irc:
[00:35] <Laurenceb> yeah thats what I've been doing for the past year
[00:39] <Laurenceb> thats from over the summer
[00:41] <natrium42> cool
[00:45] <Laurenceb> added some more from yesterday
[01:08] <Laurenceb> http://wiki.ukhas.org.uk/_media/projects:imgp0191.jpg
[01:08] <Laurenceb> thats the min rogallo I've been working on (- radio)
[01:20] <Laurenceb> corona dsp just to the left of the servo
[01:30] <SpeedEvil> wht code have you actually tested on the platform?
[01:30] <Laurenceb> I've tested the full flight code
[01:30] <Laurenceb> with a time limit of 2 minutes or so to make it easier to test
[01:31] <Laurenceb> i.e. it cuts down after 2 minutes
[01:31] <SpeedEvil> what's to be done befere flying?
[01:31] <Laurenceb> nothing really apart from gluing the wings on (wings are finished)
[01:32] <Laurenceb> you cant see on that photo but there are holes behind the servo and in front of the batts
[01:32] <Laurenceb> for the 9mm spars that support the rogallo wong frame
[01:33] <SpeedEvil> Planning to let it go anytime soon>#
[01:33] <Laurenceb> hopefully in a few weeks
[01:33] <Laurenceb> need to launch the aerosol sampler first
[01:33] <Laurenceb> I'm still fiddling about with optimised route planning
[01:34] <Laurenceb> I've got code that works ok, but I'm trying to get something thats actually optimal
[01:35] <Laurenceb> the little board above the servo is an RF splitter, so the green cutdown lead can be used as the 35MHz antenna
[01:36] <Laurenceb> and the pink thingy is the rate gyro... think that explain it all
[01:42] <Laurenceb> http://wiki.ukhas.org.uk/_media/projects:imgp0192.jpg < the side panel is designed to seal around the perimeter so it should remain above -15C inside
[01:43] <SpeedEvil> :)
[01:44] <Laurenceb> problem is it could overheat on landing, so theres a thermal fuse that cuts of power to the servo above 95C
[01:47] <SpeedEvil> what batteries>
[01:48] <Laurenceb> they're from sparkfun
[01:48] <Laurenceb> I'm using an RC plane charger from ebay
[01:48] <SpeedEvil> li-po?
[01:48] <SpeedEvil> unlikely to be rated to 95C
[01:49] <Laurenceb> well the 95C thermal fuse is epoxied to the switched mode IC
[01:49] <Laurenceb> above the lipo cell
[01:49] <SpeedEvil> ah
[01:51] <Laurenceb> I havent recharged it yet
[01:51] <Laurenceb> battery life is around 20 hours
[01:53] <Laurenceb> going down to probably less than 1 if the servo is going full torque
[01:59] <Laurenceb> http://www.spacex.com/updates.php <-- nice shots
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[05:13] <natrium42> .
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[11:05] <rjharrison> moring all
[11:05] <edmoore> morning rjharrison
[11:05] <rjharrison> how is it going
[11:05] <edmoore> not bad
[11:05] <edmoore> you?
[11:18] <fergusnoble> edmoore: im up for pizza tonight
[11:18] <edmoore> fergusnoble: fantastic
[11:18] <edmoore> will get some beers in the fridge
[11:18] <fergusnoble> cool
[11:19] <edmoore> am going to try and knock up an HF antenna
[11:19] <edmoore> there's too much awesome stuff floating around on HF
[11:19] <edmoore> I'm loving seeing such a range of digital modes on the waterfall displays
[11:21] <edmoore> may be fun to try some of these FSK modes seeing as there's bandwidth in the radiometrix
[11:25] <edmoore> fergusnoble: have you seen henry in the last 2 days?
[11:25] <edmoore> or one day perhap?
[11:25] <fergusnoble> saw him last night
[11:26] <edmoore> he didn't reply on skype, was just wondering if he could resend license key/code for eagle
[11:26] <edmoore> need to nail badger2
[11:27] <edmoore> and borrow you for a sesh
[11:31] <fergusnoble> edmoore: send him an email is probably the quickest way to reach him
[11:31] <edmoore> have done
[11:31] <fergusnoble> or phone
[11:31] <edmoore> just checking he wasn't sitting next to you now or something
[11:38] <edmoore> fergusnoble: not that it's currently a big issue, but worth noting is that if we try some kind of MFSK, it wouldn't be overselling to say we could double the bandwidth and half the number of interrupts per sec
[11:39] <fergusnoble> i know
[11:39] <edmoore> worth a play!
[11:40] <edmoore> + much better drift tolerance
[12:20] <rjharrison> hey up
[12:20] <rjharrison> It's lunch time
[12:21] <rjharrison> You all back at uni hard at work now
[12:22] <rjharrison> edmoore how's your long wire going
[12:22] <edmoore> when did I mention a long wire?
[12:22] <rjharrison> HF
[12:22] <rjharrison> Are you going to use sommat else?
[12:23] <edmoore> I don't think i was going to use a long wire when it was discussed at about midnight yesterday :)
[12:23] <edmoore> probably a loop just for space constraints
[12:24] <edmoore> but also since it was only mentioned at midnight yesterday, not much progress!
[12:27] <rjharrison> hehe
[12:27] <fergusnoble> edmoore: what are you talking about in your email?
[12:27] <edmoore> replying to greg?
[12:27] <fergusnoble> yeah
[12:27] <edmoore> did I forward it wrong?
[12:28] <fergusnoble> making correlators in hardware is a MUCH harder job than designing a system to dump it all to disk
[12:28] <edmoore> that's exactly what I said
[12:29] <edmoore> without the capital letters
[12:29] <fergusnoble> also greg has more experience than the rest of us put together with fpgas and cplds
[12:29] <fergusnoble> so he knows the capibilities
[12:33] <edmoore> I think though that a full sd access would be tough to do in most CPLDs. For example, There was a guy in the dept a couple of years ago making an SD multiplexer based around a CPLD, and I asked him if he could actually fit the SD interface in the CPLD, and he said that it was quite unlikely, he was just doing the multiplexing
[12:34] <edmoore> so to actually arrange the iq data and then package it for an SD interface would be really quite a trick on a CPLD
[12:35] <fergusnoble> quite possibly, but greg knows best
[12:35] <fergusnoble> he said he'd look into it
[12:35] <fergusnoble> not that it was for certain
[12:36] <fergusnoble> ah well
[12:36] <edmoore> rough morning?
[12:37] Action: edmoore ducks
[12:37] <fergusnoble> no, just thought you were telling greg to do it using correlators in hardware
[12:37] <fergusnoble> which is silly
[12:38] <rjharrison> hehe
[12:38] <edmoore> I think he would realise, as do you and I, that doing that would be purely for the masochistic pleasure
[12:39] <rjharrison> I ran a simulation lastnight and my code seems to be fixed
[12:39] <rjharrison> Well I flew over a few .00xxx boundries
[12:43] <edmoore> fergusnoble: clarifiction sent!
[12:44] <fergusnoble> :p
[12:45] <edmoore> right, food time.
[13:20] Action: SpeedEvil lost scroll.
[13:20] <SpeedEvil> Was the recent correlator talk about GPS?
[13:26] <fergusnoble> SpeedEvil: to determine the rocket's altitude we are developing a gps reciever based around the SiGe chip
[13:26] <fergusnoble> it just dumps the raw I/Q to an sd card
[13:26] <fergusnoble> and then we calculate the position fixes on the ground
[13:26] <SpeedEvil> well...
[13:26] <SpeedEvil> that's somewhat pointless maybe
[13:26] <SpeedEvil> http://www.geotate.com/
[13:27] <SpeedEvil> http://maxim-ic.com
[13:27] <fergusnoble> SpeedEvil: we exceed the maximum altitude and speed limits of commercial gps systems
[13:27] <SpeedEvil> they have a chip that outputs 18Mbits/sec samples.
[13:27] <SpeedEvil> and you just jam a bit on the SD card
[13:27] <SpeedEvil> doesn't matter.
[13:27] <SpeedEvil> This one has no limits
[13:27] <fergusnoble> yeah, thats what we are doing
[13:28] <SpeedEvil> It's just a digitised 1.023MHz IF, sampling at 18MHz, for a fiver.
[13:28] <fergusnoble> only using the SiGe chip not the maxim one
[13:28] <SpeedEvil> I don't know if geotate.com have samples yet.
[13:28] <fergusnoble> they are similar, only we have been sponsored a load of silicon from SiGe
[13:28] <SpeedEvil> as that'd be more or less exactly what.
[13:28] Action: SpeedEvil has been sponsored by maxim.
[13:29] <SpeedEvil> (to the extent of a free sample or three)
[13:30] <SpeedEvil> For some reason I conflated the SiGe mention with the thinkgeek plugin - USB and quite expensive.
[13:31] <fergusnoble> yeah they gave us one of the usb dongles
[13:31] <fergusnoble> should come in handy for testing the decoding software
[13:32] Action: SpeedEvil is trying to make a product based around software GPS.
[13:32] Action: SpeedEvil is currently shuffling opcodes.
[13:33] Action: SpeedEvil ponders.
[13:33] <SpeedEvil> I don't think the geotate stuff actually comes under the definition of a GPS in the ITAR rules.
[13:33] <SpeedEvil> s/geotate/postprocessed GPS in general)
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[14:18] mib_qh8efg (i=836f0142@gateway/web/ajax/mibbit.com/x-05cbe6938d2d4f1c) joined #highaltitude.
[14:18] Nick change: mib_qh8efg -> hallam
[14:18] <rjharrison> hi hallam
[14:20] Nick change: edmoore -> M0TEK
[14:21] <hallam> Hi rjh
[14:21] <hallam> Ed and I passed our full radio licences, still waiting to hear from Fergus
[14:21] <M0TEK> hallam: do the deed
[14:21] <hallam> hehe
[14:21] <hallam> someones' taken M0ORE?
[14:21] <M0TEK> yes
[14:21] <M0TEK> and also
[14:21] <M0TEK> 'it's crap in morse'
[14:21] <M0TEK> to quote the reflex response of Michael Wells
[14:21] <hallam> pff
[14:22] <M0TEK> also it's sort of the reason I got the license
[14:22] <M0TEK> (tech)
[14:25] <M0TEK> rather than 'working' contacts
[14:25] <hallam> fair enough
[14:26] Nick change: hallam -> M0HMH
[14:26] <M0HMH> forgot to check M0CUS
[14:26] <M0TEK> we can probably get a club call for that
[14:26] <M0TEK> might be worth looking into
[14:43] <rjharrison> U wankers
[14:43] <rjharrison> well done
[14:44] <rjharrison> You kept that quiet
[14:44] <rjharrison> I was hoping to do that first
[14:44] <M0TEK> too late :p
[14:44] <M0TEK> we did the exam about 4 weeks ago
[14:44] <M0TEK> seems to take a while to get processed
[14:46] <rjharrison> Ho well that's that plan out the window
[14:46] <M0TEK> cool callsign thought for someone
[14:46] <M0TEK> M0HWK
[14:46] <rjharrison> hehe
[14:46] <rjharrison> can you see of M0RJH is there?
[14:47] <M0TEK> it's not on qrz.com
[14:47] <M0TEK> no guarantee though
[14:49] <M0HMH> you could try M035K
[14:49] <M0TEK> don't think you can do numbers :)
[14:50] <rjharrison> You haven't got that high yet :)
[14:51] <M0TEK> only a question of deciding to do it :p
[14:52] <M0TEK> (he says)
[14:52] <rjharrison> yeh yeh yeh
[14:53] <rjharrison> Try keeping it in England
[14:53] <M0TEK> it's the right time of year soon
[14:53] <rjharrison> I got real lucky on that 2x
[14:53] <M0TEK> the winds change direction
[14:53] <rjharrison> Cool will it come up north
[14:53] <rjharrison> I'll post it back to you
[14:54] <M0TEK> no, i mean they're generlly very low during the transition
[14:54] <M0TEK> although nova 7 went up byond notts
[14:54] <M0TEK> i was a tired person after that chase
[14:54] <rjharrison> That's more like it
[14:54] <rjharrison> better than dover
[14:55] <M0TEK> that's true
[14:55] <M0TEK> thought for me it was (after finishing work at 5pm) oxford to cam
[14:55] <rjharrison> Best change your call signs too
[14:55] <M0TEK> then cam to flexistowe to pick up a balloon from steve
[14:55] <M0TEK> then felixstowe back to cam
[14:55] <M0TEK> then cam to the north
[14:55] <M0TEK> then the north to cam
[14:55] <M0TEK> then cam back to work at oxford
[14:56] <M0TEK> just in time for lunch
[14:56] <M0TEK> a lot of miles!
[14:56] <M0TEK> and not a wink of sleep
[14:58] <rjharrison> on the wiki
[14:58] <M0TEK> oh yeah - link?
[14:58] <rjharrison> members list on the wiki
[15:00] <M0TEK> locked by you
[15:00] <rjharrison> hehe
[15:00] <rjharrison> free now
[15:00] <rjharrison> was going to write something else
[15:00] <rjharrison> but jc might chase me
[15:00] <M0TEK> ?
[15:01] <rjharrison> Something suitably insulting
[15:01] <rjharrison> for passing your M0
[15:03] <rjharrison> TEK = TECHNICAL?
[15:03] <M0TEK> why not
[15:03] <M0TEK> also sounds nice
[15:03] <rjharrison> was that the thinking
[15:03] <M0TEK> lots of -o's
[15:04] <rjharrison> M0ONR
[15:06] <M0TEK> M0FRG is also taken
[15:06] <M0TEK> annoyance on behalf of fergusnoble
[15:07] <M0TEK> M0FOZ
[15:07] <M0TEK> hams in da hood
[15:07] <rjharrison> MOSFET
[15:07] <rjharrison> not quite
[15:26] <rjharrison> .
[15:28] <M0TEK> M0SES
[15:28] <M0TEK> would be useful for the chase on windy days
[15:31] Action: rjharrison hehe
[15:31] <rjharrison> heh
[15:31] <rjharrison> I like it
[15:31] <rjharrison> and for parting the waves when recoving your HA attempt
[15:32] <M0TEK> that was my implication, yes
[15:34] <M0TEK> M0HMH: ping
[15:34] <M0HMH> hello
[15:35] <M0HMH> Iain and I are having some fun with latex
[15:35] <M0HMH> I'm slapping it all over his rocket
[15:35] <M0TEK> I'm not sure i want to know
[15:35] <M0TEK> are you in clave room?
[15:35] <rjharrison> I think you're going to have to change your names back as I'm going to get confused soon
[15:35] <M0HMH> yes
[15:35] <M0TEK> I might pop down and finish off working - have a supervis at 5 anyway
[15:35] <M0TEK> HMH = henry miranda hallam
[15:35] <rjharrison> well more confused
[15:36] Nick change: M0HMH -> subtlety
[15:36] <M0TEK> I will pop down
[15:38] <M0TEK> bbl
[15:38] Nick change: M0TEK -> M0TEK|away
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[16:29] <Laurenceb> hello
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[17:33] <Laurenceb> hi rjharrison
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[17:55] <Xenion> Guten Abend alle miteinander :-) / good evening folks !: -)
[17:56] <natrium42> moin moin
[17:56] <rjharrison> hi all
[17:56] <rjharrison> GNUPLOT rocks
[17:57] <rjharrison> I'm sure you all know that
[17:59] <natrium42> i think Laurenceb is using it alot
[18:00] Action: SpeedEvil hugs gnuplot.
[18:01] <SpeedEvil> Though it doesn't like large datafields.
[18:01] <SpeedEvil> I tried feeding it a 256*250K datafile, and it diddn't really like it.
[18:04] <Laurenceb> I use it all the time :P
[18:04] <Laurenceb> the png export thingy is quite bad
[18:04] <SpeedEvil> (to generate a coloured plot of the attenuation of my ADSL line over time.
[18:05] <Laurenceb> you can use eps
[18:05] <SpeedEvil> Radio 4 steals a couple of kilobits/second from me!
[18:05] <Laurenceb> then convert outside
[18:05] <Laurenceb> damn radio4
[18:05] <SpeedEvil> no - not an image
[18:05] <SpeedEvil> the SNR/atten reports for each OFDM bin every 10 mins
[18:06] <Laurenceb> when I was working on a phone cable insulation analiser we had a weird signal on the scope
[18:06] <Laurenceb> I tried sticking it into headphones and... radio4 !
[18:07] <Laurenceb> they use so much power its crazy
[18:07] Action: SpeedEvil sighs.
[18:07] <SpeedEvil> And wishes DAB diddn't suck so hard.
[18:08] <SpeedEvil> At least as it's implemented in the UK.
[18:11] <Laurenceb> if you're naughtly you can use gnuplot to make a basic flight data display
[18:11] <Laurenceb> *naughty
[18:11] <SpeedEvil> I've used awk for real-time DSP before.
[18:11] <natrium42> lol
[18:12] <natrium42> now that's hard core
[18:12] <SpeedEvil> fuel injector -> soundcard -> sox -> hexdump ->awk -> real-time fuel usage display.
[18:12] <Laurenceb> I made a fft waterfall with gnuplot
[18:13] Nick change: M0TEK|away -> M0TEK
[18:14] <M0TEK> i don't like gnuplot
[18:14] <Laurenceb> nooooo
[18:14] <M0TEK> it's like a not-very-good version of several other plotting programs
[18:14] <SpeedEvil> gnuplot came first!
[18:14] <SpeedEvil> (usually)
[18:14] <Laurenceb> whys it not good?
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[18:17] <Laurenceb> SpeedEvil: how did you get that data for the ADSL?
[18:18] <SpeedEvil> my modem will dump it
[18:18] <M0TEK> it's ugly, not good at large datasets, and isn't particularly flexible
[18:18] <SpeedEvil> o adsl info --linediag;
[18:18] <SpeedEvil> echo adsl info --Bits ;
[18:18] <SpeedEvil> echo adsl info --stats;
[18:18] <SpeedEvil> ..
[18:18] <M0TEK> it's most similar rival, matlabplot, is a lot nicer to use
[18:19] <SpeedEvil> it's a linux based cheap router.
[18:19] <SpeedEvil> (without a GPL offer)
[18:19] <Laurenceb> nice
[18:19] Action: SpeedEvil stabs.
[18:19] <Laurenceb> gnuplot always works for me
[18:19] <Laurenceb> you just need to read the man
[18:19] <M0TEK> sure it works, until you want to do something that it can't do
[18:19] <M0TEK> no, feigning linux geek doesn't work here
[18:19] <Laurenceb> just read the FAQ more :P
[18:19] <M0TEK> it actually doesn't have a lot of the features that it's rivals do
[18:19] <SpeedEvil> Some things it can't do.
[18:20] <M0TEK> GLX, for example, does some things a lot better
[18:20] <rjharrison> If one was to learn one would you recommend Octive or gnuplot?
[18:21] <M0TEK> er...
[18:21] <M0TEK> octave and gnuplot go together
[18:21] <M0TEK> octave does the maths, gnuplot does the plotting
[18:21] <rjharrison> but octive is more matlab
[18:21] <rjharrison> ok cool
[18:21] <M0TEK> with a tiny crossover on the Venn diagram
[18:21] <M0TEK> well, gnuplot is basically octave's plotting tool
[18:22] <rjharrison> Ok
[18:22] <rjharrison> Cool
[18:22] <rjharrison> So
[18:22] <M0TEK> octave produces text files full of numbers, gnuplot turns them into pretty graphs
[18:22] <rjharrison> I want OS
[18:22] <Laurenceb> OS?
[18:22] <rjharrison> so are there any others
[18:22] <M0TEK> open source?
[18:22] <rjharrison> Open source
[18:22] <Laurenceb> ah
[18:22] <M0TEK> octave+gnuplot is a good solution
[18:22] <rjharrison> :)
[18:22] <rjharrison> Great
[18:22] <M0TEK> just if you get itchy feet there are nicer things than gnuplot
[18:23] <rjharrison> Right I'll settle for that
[18:23] <M0TEK> fergusnoble will tell you there are nicer things than octave
[18:23] <rjharrison> My math sucks any how
[18:23] <rjharrison> maths
[18:23] <M0TEK> he is probably right, but as for right now octave is quite stable and complete and well documented
[18:23] <Laurenceb> sure, octave isnt amazing
[18:23] <rjharrison> that was a typo not an americanism
[18:23] <Laurenceb> but gnuplot ftw
[18:23] <M0TEK> right, bbl
[18:23] <M0TEK> tesco trip
[18:23] <SpeedEvil> wave!
[18:23] Action: SpeedEvil hugs tesco delivery.
[18:24] <rjharrison> laters
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[18:29] <Laurenceb> theres an icom pcr-1000 on ebay
[18:29] <Laurenceb> pls dont bid :P
[18:29] <Laurenceb> think I'll go up to £150, but theres a lot of activity
[18:32] <SpeedEvil> sniping is probably sensible.
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[18:40] <hallam> Hallo
[18:40] <SpeedEvil> Does that work with linux?
[18:40] <hallam> no
[18:41] <hallam> M0TEK: any chance of a ride for Fergus, Sondy and myself a bit later on? It would make it possible to carry a lot more beer
[18:41] <Laurenceb> hes gone to tescos
[18:42] <hallam> thx
[18:42] <jcoxon> oooo this is interesting:
[18:42] <jcoxon> http://icbnn.wordpress.com/2009/01/04/temperature-as-measured-by-the-camera/
[18:42] <jcoxon> balloon launch in florida
[18:42] <jcoxon> got chdk to log temp and battery of the camera during hte flight
[18:42] <Laurenceb> neat
[18:43] <Laurenceb> I'm knackered :(
[18:43] <Laurenceb> 8 hour brainstorming/planning session
[18:44] <Laurenceb> ah well pub lunch in an hour :P
[18:45] <Laurenceb> after I bag myself an icom ... hopefully
[18:45] <jcoxon> what you planning?
[18:45] <Laurenceb> *wans everyone to stay away from the bidding*
[18:45] <Laurenceb> about 2 minutes left, £134
[18:46] <hallam> which model icom?
[18:46] <Laurenceb> pcr1000
[18:46] <Laurenceb> worth £200?
[18:46] <SpeedEvil> Well
[18:46] <SpeedEvil> previous one went for ~120
[18:46] <SpeedEvil> err
[18:46] <SpeedEvil> ignore that
[18:46] <Laurenceb> yeah, but that was luck
[18:47] <Laurenceb> no £160
[18:47] <Laurenceb> is the cheapest
[18:47] <SpeedEvil> If you need it, and can't get it cheaper, put 180 or so on it.
[18:47] <SpeedEvil> at the last 7 secs
[18:47] <SpeedEvil> I don't think it's going to stay below 150
[18:49] <SpeedEvil> :/
[18:49] <Laurenceb> got it
[18:49] <SpeedEvil> :)
[18:49] <Laurenceb> £197
[18:49] <Laurenceb> I'm happy with that
[18:49] <Laurenceb> got it 2 secobnds before the end
[18:50] <Laurenceb> pity I couldnt get it cheaper, but it looks in ok condition
[18:50] <SpeedEvil> local enough to pickup?
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[18:51] <Laurenceb> not really
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[18:51] <Laurenceb> I dont have a car, and trains are a rip ioff
[18:51] <SpeedEvil> mostly for balloon stuff?
[18:51] <Laurenceb> yeah
[18:51] <SpeedEvil> Laurenceb: you can have my car, if you can get it started. :)
[18:51] <Laurenceb> lol
[18:52] Action: SpeedEvil needs to assemble and fit the ECU, and tune it.
[18:52] <Laurenceb> what is it?
[18:52] <SpeedEvil> old renault laguna.
[18:52] <SpeedEvil> (currently broken)
[18:52] <Laurenceb> interesting
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[18:53] <Laurenceb> hmm I'll need an antenna
[18:53] <Laurenceb> here goes all my cash
[18:53] <SpeedEvil> Bought by hte very simple means of 'oops - crashed car, what's on ebay in the next 15 mins'.
[18:53] <Laurenceb> lol
[18:53] <SpeedEvil> you can make your own anteenna.
[18:53] <Laurenceb> my dad manged to crash a car with a gravestone in the back at 90mph
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[18:54] <Laurenceb> luckily it was behind the passenger seat
[18:54] <SpeedEvil> That could be nastily darwin awards worth.
[18:54] <Laurenceb> yeah :P
[18:54] <SpeedEvil> My one was accidental misreading of road leading to departure of road at 30MPH and 30 degrees.
[18:55] <Laurenceb> my friend crashed into a sandstone quarry just before his final a level exam
[18:55] Action: SpeedEvil has GPS logs.
[18:55] <Laurenceb> managed to stumple in with a brocken arm, determined to sit it
[18:55] <SpeedEvil> There is today a node on openstreetmap saying oops.
[18:55] <Laurenceb> arg spelling
[18:55] <Laurenceb> lmao
[18:56] <SpeedEvil> Fortunately, no injuries, and insurance wasn't a problem.
[18:56] <SpeedEvil> While waiting for the AA, I counted bits from 8 seperate cars.
[18:57] <SpeedEvil> So it's apparantly popular to misread the road the way I did.
[18:57] <Laurenceb> whats a good radio kit site?
[18:57] <Laurenceb> radioworld.co.uk
[18:58] <SpeedEvil> For 433MHz, there are IIRC some TV antennas that will go that low.
[18:59] <SpeedEvil> But it's not really hard to make your own from bamboo and wire.
[18:59] <SpeedEvil> Or stuff.
[18:59] <hallam> cheap tripods from http://www.7dayshop.com/
[18:59] <Laurenceb> hmm http://www.radioworld.co.uk/~radio/catalog/20919-tonna-70cm-440mhz-yagi-p-2322.html?osCsid=c11119141c367dc7bd5ffcf60f3c5e25
[18:59] <Laurenceb> roof rack ?
[18:59] <hallam> quite decent, at least for antenna pointing purposes
[19:00] <hallam> Laurenceb: do you plan on driving round a roundabout slowly until the signal comes in?
[19:00] <Laurenceb> hehe
[19:00] <Laurenceb> http://www.radioworld.co.uk/~radio/catalog/a430s15r-diamond-430440mhz-70cm-yagi-p-3963.html?osCsid=c11119141c367dc7bd5ffcf60f3c5e25
[19:01] <SpeedEvil> hallam: naah.
[19:01] <SpeedEvil> hallam: handbrake turns.
[19:01] <jcoxon> hey hallam, launch soon - i'm getting impatient to do some tracking :-p
[19:01] <Laurenceb> only problem is, I need to power that thing
[19:02] <SpeedEvil> Laurenceb: go to tip. Pick up old car battery.
[19:02] <hallam> jcoxon, maybe end of next week if weather permits
[19:02] <SpeedEvil> Take 0.1R resistor to test batteries first.
[19:02] <hallam> Laurenceb: product 20909 from radioworld is the nice yagi that rjf uses and that CUSF subsequently bought
[19:03] <hallam> er, rjh
[19:03] <Laurenceb> thanks
[19:03] <Laurenceb> http://www.astro.hr/ucionica/tom/Pcr1000Portable/
[19:03] <Laurenceb> SpeedEvil: ^ is slightly lighter
[19:03] <SpeedEvil> :)
[19:03] <jcoxon> hallam, oooo exciting - look forward to it
[19:03] <SpeedEvil> Car batteries are good for excersize!
[19:05] <Laurenceb> hallam: huge antenna ftw
[19:05] <Laurenceb> I'm joking :P
[19:06] <Laurenceb> http://wiki.ukhas.org.uk/_media/projects:imgp0191.jpg <-- thats the mini rogallo tronics if you havent seen it already
[19:06] <hallam> even that yagi was inconveniently big in the car on the teddy chase
[19:08] Action: SpeedEvil is sure Laurenceb is lying.
[19:09] <SpeedEvil> He's really using trained hampsters.
[19:09] <SpeedEvil> And doesn't want the
[19:09] <SpeedEvil> RSPCH to get onto him.
[19:12] Action: SpeedEvil has wondered about
[19:12] <SpeedEvil> r/c wildlife before.
[19:12] <Laurenceb> right I'm off
[19:12] <Laurenceb> cya
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[19:39] <M0TEK> hi jcoxon
[19:39] <jcoxon> hey M0TEK
[19:39] <M0TEK> all well?
[19:39] <jcoxon> nice callsign ed
[19:39] <M0TEK> ta :)
[19:39] <hallam> hi Ed
[19:40] <jcoxon> all is well, very tired though, long day
[19:40] <hallam> just had to explain over the phone to an american lady with the loveliest voice that I was trying to make a giant rocket-shaped condom, and ask her for suggestions
[19:40] <M0TEK> hallam: it's a tough life
[19:41] <M0TEK> why are you lot not at sains?
[19:41] <hallam> plan is, Fergus and Iain will continue applying more silicone and walk up to chu around 9
[19:41] <hallam> Sondy and I are leaving for sains now
[19:41] <hallam> I'll call you from there?
[19:41] <M0TEK> ok cool
[19:41] <hallam> ok see you soon
[19:41] <M0TEK> do we know what pizza they want?
[19:41] <M0TEK> it's 6.50 per pizza
[19:42] <hallam> "big/filling/tasty"
[19:42] <hallam> fergus thinks he can eat two
[19:42] <hallam> ok, leaving now
[19:42] <M0TEK> like if you just tell me what you want there's actually absolutely no hurry
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[19:43] <M0TEK> M0TEKnology
[19:43] <M0TEK> oh the fun that can be had
[19:43] <jcoxon> oh dear
[19:47] <M0TEK> actually I think that is about the entire extent of the fun
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[19:47] <akawaka> launch today?
[19:47] <M0TEK> nope
[19:47] <M0TEK> gregHome: are you greg?
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[20:11] <rjharrison> hi
[20:28] <M0TEK> hi rjharrison
[20:28] <rjharrison> yo ed
[20:28] <rjharrison> now you need to learn how to practically use your radio :)
[20:29] <rjharrison> obv. can do the theory :)
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[20:34] <M0TEK> rjharrison: getting tyere
[20:34] <M0TEK> been listening to things
[20:35] <rjharrison> Cool
[20:35] <rjharrison> Doing some work tonight
[20:35] <rjharrison> :(
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[20:35] <M0TEK> I'm watching iPlayer
[20:35] <rjharrison> Blast?
[20:35] <M0TEK> got some peeps over for pizza too
[20:35] <M0TEK> yep
[20:35] <M0TEK> CUSF cinema
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[20:35] <rjharrison> hehe fergusnoble with u
[20:36] <M0TEK> he will be soon
[20:36] <rjharrison> The M0 brigade
[20:36] <M0TEK> he and iain are just finishing off siliconing the rocket mold
[20:36] <M0TEK> and getting it in the autoclave
[20:37] <rjharrison> Sound like fun
[20:37] <rjharrison> I didn't know you were at the rocket stage
[20:38] <rjharrison> We're going to look like radio pros soon
[20:38] <M0TEK> ballooning is one of the lesser things we're doing at the moment!
[20:38] <M0TEK> there's a lot going on, it should get pretty exciting soon
[20:39] <M0TEK> but yes, loads behind the scenes, not much to show until we actually hit 100km
[20:39] <rjharrison> Who are the rocketry people
[20:39] <M0TEK> same faces
[20:39] <M0TEK> but it's mainly Iain's masters project - aurodyanmics of the rocket
[20:39] <M0TEK> going hypersonic
[20:40] <M0TEK> 0-Mach 1 in about 0.4s
[20:41] <M0TEK> at the moment though it's really just experimenting lots with carbon fibre layups and trying out new techniques
[20:41] <M0TEK> tuning the ZP maker
[20:42] <M0TEK> documenting stuff for new people
[20:42] <M0TEK> making sure badger 2 can do everything necessary for the rocket launch rail/gondola
[20:43] <rjharrison> Sounds good. You'll have to get badger 2 up soon
[20:44] <M0TEK> when it's done :)
[20:44] <M0TEK> like I say it's more important that it does what we want rather than just launching yet another balloon
[20:45] <rjharrison> Yep
[20:45] <rjharrison> You have done that enough times
[20:45] <M0TEK> well... it's still loads of fun :)
[20:45] <M0TEK> but i guess the focus is sharpeneing on space
[20:45] <rjharrison> Launch platform = 30K?
[20:45] <M0TEK> maybe a touch below
[20:45] <M0TEK> 28 say
[20:46] <rjharrison> To make sure you get there with out popping
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[20:48] <M0TEK> popping?
[20:51] <rjharrison> baloons
[20:51] Last message repeated 1 time(s).
[20:51] <rjharrison> balloons
[20:52] <rjharrison> over 30k you run a risk I guess
[20:52] <M0TEK> not with ZP
[20:53] <M0TEK> listening to radio4 on my icom
[20:53] <M0TEK> happy days
[21:00] <rjharrison> me too ! DAB
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[21:38] <akawaka> how much do you expect the rocket to weigh?
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[22:47] <M0TEK> akawaka: 3kg
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[22:48] <Laurenceb> hello
[22:57] <natrium42> ello
[22:58] Nick change: Bluenarf -> EI5GTB
[23:03] Nick change: akawaka -> KI6PFW
[23:03] Nick change: mogwie -> KI6PFT
[23:04] Nick change: KI6PFW -> akawaka
[23:04] Nick change: KI6PFT -> mogwie
[23:09] <Laurenceb> lol
[23:09] <Laurenceb> ham freaks
[23:09] Action: Laurenceb joins in with his icom
[23:09] Action: gordonjcp is PSK31ing away up here
[23:09] <gordonjcp> loads of italian stations on
[23:11] <Laurenceb> its the ionosphere
[23:11] <Laurenceb> you need MIDAS
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[23:16] <Laurenceb> http://scholar.google.co.uk/scholar?hl=en&safe=off&client=firefox-a&rls=com.ubuntu:en-GB:unofficial&hs=73X&q=midas%20ionosphere&um=1&ie=UTF-8&sa=N&tab=ws
[00:00] --- Wed Jan 14 2009