highaltitude.log.20090206

[00:00] <Laurenceb> patch ant on a pcb?
[00:00] <natrium42> yep
[00:00] <Laurenceb> or chip antenna?
[00:00] <Laurenceb> right
[00:00] <natrium42> no ready made antennas
[00:00] <natrium42> just the pcb i would manufacture
[00:00] <Laurenceb> ok, so you want to mount the patch on top of a ground pour
[00:00] <natrium42> :S
[00:00] <Laurenceb> then on the underside have the traces
[00:00] <natrium42> no mounting either
[00:01] <natrium42> i want a trace antenna essentially
[00:01] <Laurenceb> ok
[00:01] <Laurenceb> hmmm
[00:01] <Laurenceb> tricky
[00:01] <natrium42> yeah :P
[00:01] <natrium42> i am not an EE :(
[00:01] <Laurenceb> without an RF testing lab I'd copy an existing design
[00:01] <Laurenceb> you'd need a GHz signal gen and spectrum anyliser
[00:01] <natrium42> ok, i have a sample design
[00:02] <Laurenceb> yeah I'd find some sample designs, theres got to be loads
[00:02] <Laurenceb> but it will depend on pcb properties
[00:02] <natrium42> is it important to know what the trace resistance is?
[00:02] <natrium42> right
[00:02] <Laurenceb> no
[00:02] <Laurenceb> the board thickness and permittivity
[00:02] <Laurenceb> is what you're worried about
[00:03] <akawaka> do they have details on the firmware anywhere?
[00:03] <Laurenceb> but you can guesstimate permitivity as 4.5
[00:03] <Laurenceb> akawaka: on the site
[00:03] <Laurenceb> theres a pdf
[00:06] <Laurenceb> ooh interesting - its not an IC
[00:06] <Laurenceb> its a board encapsulated in epoxy with bare die parts
[00:07] <Laurenceb> you can see on some of the photos on the skytraq site
[00:07] <natrium42> yeah, i wonder whether it's easy to destroy it by hot air reflow soldering
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[00:08] <edmoore> you guys seen sparkfun?
[00:08] <natrium42> edmoore!!!111
[00:08] <natrium42> yes
[00:08] <edmoore> 10Hz GPS
[00:08] <natrium42> edmoore, i requested a quote for 100 units
[00:08] <edmoore> claims to work above 18,000m too
[00:09] <edmoore> wow
[00:09] <natrium42> wait, are we talking about that single chip one?
[00:09] <edmoore> that's a lot of units
[00:09] <edmoore> yes
[00:09] <Laurenceb> yeah.... but the blackfin will annihilate it :P
[00:09] <natrium42> edmoore, i have an idea to use it for a nintendo ds thing
[00:09] <edmoore> hrm, i'm assuming this is hardware aided
[00:09] <natrium42> we'll see what they quote
[00:09] <Laurenceb> yeah
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[00:09] <Laurenceb> theres a pcb inside
[00:10] <Laurenceb> its bare die onto pcb, then epoxied
[00:10] <natrium42> edmoore, i would like to try using a pcb trace as an antenna for it
[00:10] <edmoore> that sounds like a cool thing to try
[00:10] <natrium42> i have a module which uses that approach
[00:10] <natrium42> so all i need is to copy it :P
[00:10] <Laurenceb> downconversion to low IF, then hardware aided 32bit processor
[00:10] <edmoore> right, I am off to bed - need to make cold go away.
[00:10] <natrium42> aah, g'nite
[00:10] <Laurenceb> cya
[00:11] <natrium42> get better soon
[00:11] <Laurenceb> still got it :(
[00:11] <Laurenceb> yeah get well soon
[00:11] <edmoore> it's going gradually, but i need to give it all the help I can get for saturday night
[00:11] <edmoore> am going to CU wine society annual dinner and there's no point going there if I have no sense of smell or taste!
[00:11] <Laurenceb> hehe
[00:12] <edmoore> cya
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[00:13] Action: Laurenceb wonders how many blackfin gps units could be sold before the black helicopters arrive
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[00:25] <natrium42> ooh, i got a quote :D
[00:25] <Laurenceb_> how much?
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[00:26] <Laurenceb_> or is it secret? :P
[00:27] <natrium42> $8.50
[00:27] <natrium42> MOQ 250
[00:27] <Laurenceb_> each?
[00:27] <natrium42> yep
[00:27] <Laurenceb_> wow
[00:27] Action: natrium42 orders
[00:28] <Laurenceb_> my audio keeps breaking :/
[00:28] <natrium42> http://share.findmespot.com/shared/faces/viewspots.jsp?glId=0iYBQsZKupoOBTJq8x6cWA4PRJUYRi1ir
[00:28] <Laurenceb_> I have to reinstall the audio driver
[00:28] <natrium42> it worked
[00:29] <Laurenceb_> I know where you live
[00:29] <Laurenceb_> is it actually inside?
[00:36] <natrium42> nah, i had to put it outside into the snow :)
[00:36] <Laurenceb_> cool
[00:36] <natrium42> so, they will ship my gps chips at the end of feb
[00:36] <natrium42> but send me 2 samples next week
[00:37] <Laurenceb_> this is really odd, windows sound effects work, but neither fldigi nor firefox can find my sound hardware
[00:37] <Laurenceb_> cool
[00:37] <Laurenceb_> any idea what could be causing the problem?
[00:38] <natrium42> did you try rebooting?
[00:38] <Laurenceb_> yeah I have before
[00:38] <Laurenceb_> I just tried reinstalling the driver and it fixed it for 1/2 an hour
[00:38] <natrium42> did you try installing gnu/linux?
[00:38] <natrium42> :)
[00:38] <Laurenceb_> now its gone again
[00:38] <Laurenceb_> hehe yeah works fine under linux
[00:39] <Laurenceb_> guess I'll just have to reinstall the driver
[00:39] <Laurenceb_> I really need to wipe winxp on here, its getting really buggy
[00:40] <Laurenceb_> it may be the HDD failing, ubuntu says the MBR is corrupted, but its been saying that for over a year
[00:41] <natrium42> bbl food
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[03:52] <josepharmbruster> took my exam last night
[03:52] <josepharmbruster> i'm now a technician :-)
[03:52] <josepharmbruster> going to grab the general book tomorrow
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[05:38] <natrium42> shellevil, so, i was trying to dump the microcontroller of the SPOT
[05:39] <natrium42> but my MSP430 cable is not being recognized by winxp :(
[05:41] <natrium42> anyway, i have a different cable to try tomorrow
[05:42] <natrium42> btw, finding the GPS lines was damn easy -- it has a bunch of test points on the PCB
[05:42] <natrium42> NMEA at 9600 baud
[06:06] <shellevil> :)
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[08:01] <natrium42> hi edmoore
[08:01] <rjharrison> morning all
[08:01] <rjharrison> hi ed
[08:01] <edmoore> good morning!
[08:02] <natrium42> hey rjharrison
[08:02] <rjharrison> jcoxon was suggesting that a sat launch might be possible
[08:02] <rjharrison> hi natrium42
[08:02] <edmoore> that's cool
[08:02] <rjharrison> me and rocketboy arn't quite ready yet
[08:02] <edmoore> I am on a solemn promise to do spaceflight work for the next few days
[08:02] <rjharrison> If the sky was clear it might be fun to shove a cam up
[08:03] <edmoore> though I may go to history of maths thisafternoon as it's so damn good
[08:03] <rjharrison> hehe
[08:03] <rjharrison> The others have been pushing ahead
[08:03] <edmoore> i think though that for the first time since week 1, first term, first year, I am on top of all my work
[08:03] <edmoore> degree work, that is
[08:03] <rjharrison> Not sure how well their degree course is going :)
[08:03] <edmoore> don't talk to hallam about that
[08:04] <edmoore> you can imagine how doing GPS 24/7 for 10 days affects your degree...
[08:04] <rjharrison> GPS is so much more fun though
[08:04] <rjharrison> natrium42: I dread to think what time it is with you
[08:05] <natrium42> 3 am :S
[08:05] <natrium42> looking at tiny gps antennas
[08:06] <rjharrison> Right I have some real work to be getting on with
[08:06] <edmoore> snap
[08:06] <edmoore> 9am lecture and a lab
[08:06] <edmoore> then a supervision
[08:06] <rjharrison> Have a good day all and we'll chat over the w/e
[08:07] <rjharrison> natrium42: get some sleep sir
[08:07] <natrium42> yeah, i should
[08:07] <natrium42> g'nite
[08:11] <rjharrison> edmoore: Did you guys get an 817?
[08:11] <rjharrison> Radio
[08:13] <edmoore> not yet
[08:13] <edmoore> will reconsider once the rotator is all set up
[08:13] <rjharrison> BTW when you get 5 check out slim jim antennas. I'm going to make one for rx on icarus
[08:15] <edmoore> cool, will have a read
[08:15] <rjharrison> You can make them out of a bit of linear feed cable so flexable and light
[08:16] <edmoore> right, got to be off
[08:16] <edmoore> bbl
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[08:59] <jcoxon> morning all
[08:59] <jcoxon> seems to be lots of excitment concerning that gps module :-p
[08:59] <rjharrison> ?
[09:00] <jcoxon> http://www.sparkfun.com/commerce/product_info.php?products_id=9060
[09:00] #highaltitude: mode change '+o jcoxon' by ChanServ!ChanServ@services.
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[09:04] Topic changed on #highaltitude by jcoxon!n=jcoxon@host86-158-31-172.range86-158.btcentralplus.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www. ukhas. org. uk, wiki. ukhas. org. uk - UKHAS Prize 2009 http: / / wiki. ukhas. org. uk/ #ukhas_prize_2009
[09:05] Topic changed on #highaltitude by jcoxon!n=jcoxon@host86-158-31-172.range86-158.btcentralplus.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk, wiki.ukhas.org.uk - UKHAS Prize 2009 www.wiki.ukhas.org.uk/#ukhas_prize_2009
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[10:55] <SpeedEvil> Anyone make a DX order recently?
[10:55] <SpeedEvil> I've got an order submitted on the 25th that's still pending.
[11:08] <SpeedEvil> http://dealextreme.com/forums/Forums.dx/Forum.-204~threadid.265807
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[12:12] <jcoxon> hey G8KHW
[12:39] <G8KHW> hey jcoxon
[12:47] <G8KHW> bbl
[12:48] <jcoxon> hehe
[12:48] <jcoxon> was just about to send you a link
[12:48] <jcoxon> http://pegasus4.no-ip.org/~jamescoxon/socket.php
[12:50] <G8KHW> I was just going out - but I'll go out in a min
[12:50] <jcoxon> its only a start
[12:50] <jcoxon> but you can now control my radio over the web
[12:51] <G8KHW> nope - still cant get to that site - tis the old problem
[12:51] <jcoxon> oh rubbish
[12:51] <jcoxon> oh well
[12:51] <jcoxon> basically got hamlib working with my 817 so its computer controlled
[12:52] <jcoxon> then added some php to change the freq and mode
[12:52] <G8KHW> must be the dynamic dns
[12:52] <G8KHW> ?
[12:52] <jcoxon> yeah
[12:52] <G8KHW> whats the IP at the mo
[12:52] <jcoxon> 86.158.31.172
[12:54] <G8KHW> its not the dns then - I cant get that site - cant even ping it
[12:54] <jcoxon> bt broadband for you
[12:54] <jcoxon> yeah we had this problem before
[12:54] <jcoxon> :-)
[12:54] <jcoxon> no worries
[12:57] <G8KHW> thats (still) really strange - its a BT central plus address (btinternet) - and thats hangingin off the same core network as this connection
[12:57] <G8KHW> its not even going to the internet
[12:57] <G8KHW> ah well bbl
[12:57] <jcoxon> very strange
[12:57] <jcoxon> perhaps a weird policy on the routing system
[12:58] <jcoxon> not sure
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[15:46] <jcoxon> afternoon all
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[15:47] <edmoore> hi jcoxon
[15:47] <jcoxon> edmoore, http://pegasus4.no-ip.org/~jamescoxon/socket.php
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[16:01] <rjharrison> Hi all
[16:01] <rjharrison> Any exciting news
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[17:08] Action: SpeedEvil is getting a new phone line!
[17:08] <SpeedEvil> (your excitment may vary)
[17:10] <jcoxon> woohoo
[17:11] <SpeedEvil> Outsourcing - filled in web form applying yesterday.
[17:11] <SpeedEvil> Reply 3:45AM today
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[17:45] <jcoxon> ping ping ping :-p
[17:45] <jcoxon> anyone really who can receive streaming audio
[17:45] <shellevil> me
[17:46] <jcoxon> oooo okay
[17:46] Action: shellevil is streaming DAB ATM
[17:46] <jcoxon> one sec
[17:46] <shellevil> though can also do anything mplayer supports
[17:46] <shellevil> or flash
[17:46] Action: shellevil presses ear to jcoxons icon.
[17:47] <jcoxon> http://86.158.31.172:8000/listen.m3u
[17:47] <jcoxon> http://pegasus4.no-ip.org/~jamescoxon/socket.php
[17:47] <jcoxon> basically thats the audiostream from my radio
[17:47] <shellevil> ...
[17:47] <jcoxon> and the second link controls it
[17:48] <jcoxon> so you can change freqs etc
[17:48] <shellevil> something happening
[17:48] Action: shellevil has sound
[17:48] <jcoxon> i think its tuned into a repeater right now
[17:49] <shellevil> ah - no antenna
[17:49] <jcoxon> shellevil, you ain't going to get anything, i've only got a 70cm ant attached
[17:49] <shellevil> (for mw)
[17:50] <jcoxon> did it work though?
[17:50] <shellevil> It responds
[17:50] <shellevil> I don't have audio - predictably enough on either
[17:50] <shellevil> well
[17:50] <shellevil> I have audio - but not signal
[17:50] <jcoxon> try this
[17:51] <shellevil> There was audible comms on the original freq
[17:51] <shellevil> yes, hear that
[17:51] <jcoxon> i've put it back
[17:51] <jcoxon> cool, good quality?
[17:52] <shellevil> The picture I assume is meant to be static?
[17:52] <jcoxon> yeah right now
[17:52] <shellevil> hangon - I'll turn it up
[17:53] <shellevil> ok - loud static
[17:54] <jcoxon> shellevil, could you close the stream
[17:54] <jcoxon> i'll do some more fiddling
[17:54] <shellevil> k
[17:54] <shellevil> It's good quality white noise it sounds like though
[17:54] <shellevil> Really good static :)
[17:55] <shellevil> But I had voices originally, just faint due to local mixer problems.
[17:55] <shellevil> So I imagine it'll work
[17:55] <jcoxon> cool cool
[17:56] <shellevil> This is so we can tell slashdot the URL to listen to our balloon on?
[17:56] <shellevil> :)
[17:56] <jcoxon> please don't
[17:56] <shellevil> Of course not, though that would be fun - if planned for properly.
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[18:05] <jcoxon> right i've fixed the lack of FM radio stations
[18:10] <shellevil> want me to have another go?
[18:12] <jcoxon> yeah
[18:13] <shellevil> On the station it's on - was reasonable reception of voice contact - with quite a lot of static
[18:14] <jcoxon> okay
[18:14] <jcoxon> mine is pretty good
[18:14] <shellevil> On random FM - it's quite acceptable quality
[18:14] <jcoxon> but then i'm on the same plan
[18:14] <shellevil> no audible clipping or anything
[18:14] <shellevil> (99.5)
[18:15] <shellevil> I can't say if it's hifi or not - as I'm on my eeepc
[18:15] <jcoxon> hehe
[18:15] <jcoxon> no worries
[18:15] <shellevil> but quite fine enough for rtty
[18:15] <jcoxon> its more for ballooning
[18:15] <jcoxon> just need to find some rtty :-p
[18:15] <shellevil> well - rtty or whatever
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[18:16] <jcoxon> hehe nothing on that repeater obviously :-p
[18:21] <Hiena> Hey guys! Want to hear a neat thing?
[18:21] <jcoxon> Hiena, go for it
[18:21] <Hiena> The first hungarian sattelite will be lauched at september.
[18:22] <jcoxon> oh cool
[18:22] <jcoxon> :-)
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[18:24] <Hiena> Code name MaSat-1, callsign will be HA5MASAT.
[18:24] <Hiena> http://cubesat.bme.hu/
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[18:24] <jcoxon> evening G8KHW
[18:25] <Hiena> The frequency not decided,yet. But it will be operate on the amateur-band.
[18:26] <Hiena> The interesting thing: The sattelite will be magnetically stabilised.
[18:28] <Hiena> http://cubesat.bme.hu/?page_id=28&lang=en
[18:33] <G8KHW> They used to call that magnatorq I think (the magnetically stabilised bit) - its been used on ham sats before
[18:34] <jcoxon> G8KHW, shame you can't access my trackign station as i've now got an audio stream set up
[18:36] <G8KHW> yeah major :-(
[18:36] <jcoxon> traceroute doesn't show anything?
[18:36] <G8KHW> I cant figure it
[18:37] <G8KHW> I tried before - hang on il'll try again
[18:38] <jcoxon> hehe
[18:46] <G8KHW> Tracing route to host86-158-31-172.range86-158.btcentralplus.com [86.158.31.172]
[18:46] <G8KHW> 1 28 ms 99 ms 99 ms dsldevice.lan [192.168.1.254]
[18:47] <G8KHW> 2 52 ms 51 ms 49 ms sdsldiag1-hg1.reading.broadband.bt.net [217.41.145.72]
[18:47] <G8KHW> 3 48 ms 48 ms 51 ms 217.41.145.34
[18:47] <G8KHW> 4 44 ms 44 ms 48 ms 217.41.145.110
[18:47] <G8KHW> 5 50 ms 48 ms 49 ms interconnect1-l0.reading.fixed.bt.net [62.6.198.
[18:47] <G8KHW> 244]
[18:48] <G8KHW> 6 49 ms 49 ms 49 ms core1-gig2-1.reading.ukcore.bt.net [62.6.198.1]
[18:48] <G8KHW> 7 * 52 ms 52 ms core1-pos0-0-0-4.ealing.ukcore.bt.net .189]
[18:48] <G8KHW> 8 51 ms 50 ms 50 ms core1-pos7-0.faraday.ukcore.bt.net [62.6.204.78]
[18:48] <G8KHW> 9 47 ms 46 ms 48 ms oracle2-s0.customer.bt.net [194.72.4.130]
[18:49] <G8KHW> 10 45 ms 45 ms 48 ms 217.47.93.179
[18:49] <G8KHW> 11 54 ms 57 ms 54 ms 217.41.177.37
[18:49] <G8KHW> 12 51 ms 52 ms 49 ms 217.41.177.77
[18:49] <G8KHW> 13 52 ms 48 ms 48 ms 217.41.177.6
[18:49] <G8KHW> then thats it - it don't get any further
[18:49] <jcoxon> whats your ip?
[18:50] <G8KHW> 217.47.75.27
[18:51] <jcoxon> so is it my side or your side?
[18:52] <SpeedEvil> still working here
[18:52] <SpeedEvil> (tested for 5s)
[18:53] <G8KHW> don't know - its doing all the right routing here - reading - ealing - faraday (central london)
[18:53] <G8KHW> jcoxon: try a route trace to me
[18:53] <SpeedEvil> 177.6 works is the last element in my traceroute too
[18:54] <SpeedEvil> 177.6 is the last element in my traceroute too
[18:54] <SpeedEvil> and it works
[18:55] <jcoxon> 1 BThomehub (192.168.1.254) 80.429 ms 99.283 ms 99.413 ms
[18:55] <jcoxon> 2 217.47.90.58 (217.47.90.58) 22.176 ms 23.605 ms 22.865 ms
[18:55] <jcoxon> 3 * * *
[18:55] <G8KHW> I guess its on the return path then
[18:57] <jcoxon> yeah mine pauses on after the 2nd
[18:58] <jcoxon> SpeedEvil, can you traceroute both G8KHW and myself?
[18:58] <SpeedEvil> My traceroute to you matches - more or less - after the initial bit up to the last line
[18:59] <SpeedEvil> hops max, 38 byte packets
[18:59] <SpeedEvil> 1 router.mauve.plus.com (10.0.0.2) 5.240 ms 4.454
[18:59] <SpeedEvil> err
[18:59] <SpeedEvil> http://pastebin.com/m158d34fa
[18:59] <SpeedEvil> to G8KHW
[19:00] <jcoxon> hmmmm
[19:02] <jcoxon> stupid btinternet
[19:04] <G8KHW> looks like a router near jcoxon (a little into the BT network) doesn't know the way to route to me
[19:04] <SpeedEvil> port sensitive?
[19:04] <SpeedEvil> I mean - can you hit the http
[19:04] <G8KHW> nope
[19:06] <jcoxon> G8KHW, but then i can't ping you off my shell server which is on a remote system
[19:06] <G8KHW> humm whats its address?
[19:06] <jcoxon> oh wait i can't ping anyone
[19:07] <SpeedEvil> http://nmap-online.com/
[19:07] <jcoxon> don't worry about that
[19:07] <jcoxon> lister.gridstar.net
[19:07] <jcoxon> but i think they must of blocked something
[19:12] <G8KHW> well whatever it is it has been like it for months
[19:12] <jcoxon> yeah
[19:12] <jcoxon> no worries
[19:13] <G8KHW> what I cant figure is why SpeedEvil isn't comming in the same IP Addresses as I go out on the 1st few hops
[19:13] <shellevil> routing isn't always symmetric
[19:13] <shellevil> links have assymetrical bandwidths/...
[19:15] <G8KHW> sure - but the last hop sdsldiag1-hg1.reading.broadband.bt.net [217.41.1
[19:15] <G8KHW> 45.72]
[19:15] <G8KHW> isn't shown and thats where my PPP session is terminated - so it must come in there
[19:16] <G8KHW> ah well - just getting that feeling I don't know enough about it to be sure of anything
[19:17] <jcoxon> i can traceroute up to : dsldiag1-nte.reading.broadband.bt.net
[19:17] <jcoxon> then it stops
[19:17] <jcoxon> all seems very weird
[19:17] <shellevil> Try rebooting your router
[19:18] <jcoxon> oh well, my internet radio receiver is very cool, you'll have to take my word for it them :-p
[19:18] <jcoxon> shellevil, its been like this for months, we tried last year
[19:18] <shellevil> dsl router
[19:18] <shellevil> ah
[19:18] <shellevil> And mine!
[19:18] Action: shellevil runs a thermal analysis of the signal from jcoxons reciever.
[19:19] <shellevil> 138K!
[19:19] <jcoxon> i'll attach my dodgey 2m antenna as well
[19:19] <G8KHW> humm hang on I'll try my 3G phone
[19:20] <G8KHW> whats the URL again?
[19:20] <jcoxon> http://pegasus4.no-ip.org/~jamescoxon/socket.php
[19:21] <shellevil> The image is totally static - it doesn't even refresh on page load?
[19:21] <jcoxon> yeah
[19:21] <jcoxon> its teh image that isn't refreshing
[19:22] <shellevil> worked out a plausible way to get it to refresh?
[19:22] <jcoxon> yeah but i'm not at presnet running fldigi
[19:22] <G8KHW> oh brill no ~ on the iphone keypad
[19:22] <jcoxon> can you get the audio link?
[19:22] <shellevil> http://tinyurl.com/c87gpg
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[19:23] <shellevil> is the above link
[19:23] <G8KHW> send the link again and then i can click on it on my iphone
[19:23] <shellevil> http://tinyurl.com/c87gpg
[19:23] <shellevil> oh
[19:24] <shellevil> well - redirects to http://pegasus4.no-ip.org/~jamescoxon/socket.php
[19:24] <G8KHW> woo i have it
[19:25] <jcoxon> i'm trying to remember the radio beacon in south london
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[19:27] <G8KHW> no audio on the iphone :-(
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[19:28] <jcoxon> can you get anything like vlc?
[19:29] <jcoxon> G8KHW it should be possible
[19:29] <jcoxon> as its just an internet radio station
[19:29] <G8KHW> ?
[19:29] <G8KHW> http://pegasus4.no-ip.org/~jamescoxon/socket.php
[19:30] <jcoxon> yup
[19:30] <jcoxon> http://pegasus4.no-ip.org:8000/listen.m3u
[19:30] <G8KHW> yeah - just clicked on it on my iphone
[19:30] <jcoxon> it doesn't play automatically
[19:30] <G8KHW> so click on Audio Stream ?
[19:31] <jcoxon> yeah
[19:31] <jcoxon> oh i think you'll need an app
[19:32] <jcoxon> ooo FStream
[19:32] <jcoxon> its on the app store
[19:32] <G8KHW> just get "Failed to load this URL Frame load inteerrupted"
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[19:33] <G8KHW> ooo its free
[19:33] <G8KHW> installing
[19:36] <G8KHW> could take some time - the 3G is slow ere
[19:36] <jcoxon> found the GB3VHF beacon
[19:38] <natrium42> hi
[19:39] <shellevil> Hi.
[19:40] <shellevil> See spot run?
[19:40] <jcoxon> natrium42, http://pegasus4.no-ip.org/~jamescoxon/socket.php
[19:40] <natrium42> lul
[19:40] <natrium42> jcoxon, ooh
[19:40] <natrium42> jcoxon, what's that signal?
[19:41] <jcoxon> a local beacon
[19:41] <jcoxon> GB3VHF
[19:42] <natrium42> neat, it seems to be playing some tune now :P
[19:42] <jcoxon> yeah
[19:43] <jcoxon> apparently thats JT65B
[19:45] <jcoxon> i've had to stop fldigi running as well
[19:45] <jcoxon> as its making my old ibook run a bit too hot
[19:46] <natrium42> btw, if anybody wants one of those GPS chips, let me know
[19:46] <natrium42> i am getting 250 of them
[19:46] <jcoxon> natrium42, i'll have one on a pcb with an avr :-p
[19:46] <natrium42> :)
[19:46] <natrium42> still need to find a nice antenna to use
[19:46] <natrium42> not sure about using a chip antenna
[19:47] <natrium42> the gain is quite bad, but the gps chip is very sensitive
[19:47] <shellevil> gps chips
[19:47] <shellevil> ?
[19:47] <natrium42> shellevil, that same one that sparkfun has got
[19:47] <shellevil> the 39.95 10*10*1mm?
[19:48] <natrium42> yep
[19:49] <natrium42> jcoxon, i have been looking at http://www.taoglas.com/antennas/GPS_Antennas/
[19:49] <shellevil> what'd the price work out as?
[19:49] <natrium42> need a pcb mounted antenna
[19:49] <natrium42> shellevil, $8.50 per chip
[19:49] <shellevil> hmm.
[19:50] <shellevil> I'd be interested in 5
[19:50] <natrium42> so about $2200 for the whole bunch
[19:50] <natrium42> okay
[19:50] <shellevil> Unsupported wire helix is quite light
[19:50] <natrium42> i should get them at beginning of march
[19:50] <shellevil> though very unrobust
[19:50] <jcoxon> natrium42, thats alot of chips!
[19:51] <natrium42> jcoxon, i have a use for them, so... :)
[19:51] <jcoxon> fair enough
[19:51] <jcoxon> i'd love to have some but would need a pcb
[19:52] <natrium42> i'll get two samples to play with next week
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[19:52] <shellevil> I've made some Al wire helixes, which worked OK
[19:52] <G8KHW> http://pegasus4.no-ip.org/~jamescoxon/socket.php
[19:52] <jcoxon> G8KHWyup
[19:52] <jcoxon> oops
[19:52] <jcoxon> G8KHW yup
[19:53] <G8KHW> yeah - im just pasting it so I can pick it up on the Iphone
[19:53] <jcoxon> but you might want the audio link
[19:53] <jcoxon> http://pegasus4.no-ip.org:8000/listen.m3u
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[20:52] <shellevil> natrium42: teaser datasheets are so annoying. 'flash can be customised' 'for (undocumented) flash logger mode' ...
[21:09] <natrium42> srsly
[21:14] <shellevil> I mean - if you can't think of fun things to do with GPS + I2C bus, + programmable micro in GPS, you must already be dead! (To misquote Samuel Johnson)
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[21:23] <natrium42> i could probably request it
[21:23] <jcoxon> hmmm anyone got any ideas how i could wack a waterfall on my web page
[21:23] <natrium42> flash
[21:24] <natrium42> and some kind of screen capturing app
[21:24] <jcoxon> yeah i've done that already
[21:25] <jcoxon> but i really want something quicker
[21:25] <jcoxon> and more 'native'
[21:25] <shellevil> The internet is damn _wierd_
[21:25] <shellevil> And brilliant.
[21:25] <shellevil> http://www.missileforums.com/forums/
[21:25] <natrium42> is there an API for the waterfall data?
[21:26] <jcoxon> http://www.tree-axis.com/Ess/_examples/inputFFT/
[21:26] <jcoxon> it runs off your own sound rather then the servers
[21:27] <jcoxon> tis a shame
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[22:29] Action: shellevil has waterfall from jcoxons radio.
[22:29] <shellevil> (in a silly way)
[22:29] <jcoxon> how?
[22:29] <shellevil> load stream into amarok, and play it
[22:29] <jcoxon> :-)
[22:30] <jcoxon> i thought of a way using java however it won't play my audio stream even though it claims to do mp3s
[22:32] <jcoxon> tis a shame - it would have been really cool
[22:39] <jcoxon> oh wait it does work!
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[22:50] Action: shellevil ponders jcoxon furiously javaing a FFT waterfall and automatic demodulator app.
[22:51] <jcoxon> i'm getting there
[22:51] <jcoxon> just give me time!
[22:52] <shellevil> Actually
[22:52] <shellevil> mp3 is already half of that in theory.
[22:52] <jcoxon> i've got the mp3 bit sorted
[22:52] <shellevil> The psychoacoustic model may screw you for low SNR
[22:52] <jcoxon> its now a matter of linking that to a FFT
[22:52] <jcoxon> which i have
[22:53] <shellevil> I was meaning mp3 is FFT based
[22:53] <shellevil> so in theory, you don't need to decode it all the way - in practice tho...
[22:53] <jcoxon> hehe
[22:53] <jcoxon> i'm nearly there
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[23:04] <natrium42> ohai josepharmbruster
[23:06] Nick change: Mogwie_ -> Mogwie
[23:31] <shellevil> Anyone happen to recall what wireless data equipment in the 10.9GHz band is called?
[23:31] Action: shellevil is reading OFCOM website, and found you can emit a watt there.
[23:34] <shellevil> OMG - metal detectors that transmit speech are prohibited!
[23:34] <shellevil> :)
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[00:00] --- Sat Feb 7 2009