highaltitude.log.20060524

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[08:27] <Tiger^> hi jcoxon
[08:30] <jcoxon> hey Tiger^
[08:31] <Tiger^> haven't slept since yesterday morning ;)
[08:32] <Tiger^> but i've soldered all main flight comp modules
[08:32] <Tiger^> and the radiomodems
[08:36] <defy> hey guys
[08:36] <defy> what kind of modems are you using Tiger^?
[08:42] <jcoxon> i've got a quote for £150 for 2 of those aerocomm radiomodems
[08:42] <jcoxon> though i can't use the 900mhz ones with the really long range
[08:43] <defy> my zbee arrived yesterday
[08:43] <jcoxon> would have to go for the 868mhz with a 15km range :(
[08:43] <defy> my gumstix is now wireless :D
[08:45] <defy> I spoke to aerocomms AU distributor (who happens to be a huge UAV nut) for quite some time on the phone, really cool guy with lots of good wireless info....he doens't like the aerocomms so much, but thats only because he uses much more powerful gear
[08:45] <jcoxon> yeah i read your mailing list message
[08:45] <jcoxon> oh right
[08:45] <jcoxon> what does he use
[08:46] <defy> http://www.telelink.com.au/DS_MU-1_v10e.pdf
[08:46] <defy> those
[08:46] <defy> but thats 433mhz...and they are DAMN expensive
[08:47] <defy> about $600AU for a working system with 2 modules
[08:47] <defy> compared to the aerocomes which are only about 70 each
[08:49] <jcoxon> 28 pounds per aerocomm!!
[08:49] <jcoxon> why are they asking for £150
[08:50] <jcoxon> i guess its for the developers kit
[08:50] <defy> who?
[08:50] <defy> i was pricing all the aerocomm stuff from mouser.com, they seem to have the cheapest prices
[08:51] <defy> Jack at telelink said they have the resell the aerocomms for so much because when they receive them they come with HUGE instruction manuals which are costing them about 150 just in shipping
[08:51] <defy> he's been trying to get aerocomm to ship without the manuals but aparently they wont
[08:52] <Tiger^> defy: i'm making my own modems
[08:52] <defy> but he pointed me towards the uav section of rcgroups.com which also had quite a lot of good info
[08:52] <defy> Tiger^ sweet
[08:52] <Tiger^> actually, they're just modem modules for my flight communication cpu
[08:53] <Tiger^> FSK modulators/demodulators
[08:53] <defy> cool
[08:54] <jcoxon> defy, http://www.bfioptilas.co.uk/OEM_Modules-l5659.htm
[08:54] <jcoxon> these are the ones i can get
[08:55] <jcoxon> the ones on mouser are much more powerful up to 5w
[08:55] <jcoxon> don't want to upset OFCOM
[08:55] <defy> ah cool
[08:56] <defy> same modules I'm looking at, either those..or the maxstream equivalent
[08:57] <jcoxon> but they only have a 15km range
[08:58] <defy> yeah =/
[08:59] <defy> more than 50k feet would be nice
[08:59] <jcoxon> if you lost contact above then
[08:59] <jcoxon> and then it came back down again
[09:00] <jcoxon> would it automactically reestablish a connection?
[09:00] <defy> not too sure but I think they work exactly like these zbee modules do, they are just a wireless drop in replacement for serial
[09:00] <defy> so i guess it depends on pppd, gone out of wireless range with these modules yet to see what happens
[09:01] <jcoxon> hmmm
[09:01] <defy> but i imagine that if it loses signal that pppd will just die, and you could just throw it into the inittab to make it keep respawning and retrying
[09:01] <jcoxon> £150 is a lot of money
[09:02] <defy> i just ran the gumstix, netmmc, gpsstix, antenna and zbee module on 4 AA's and it lasted 30 minutes, lol
[09:02] <defy> I guess 6 cells is better
[09:02] <jcoxon> if i got these modems i'd run it off a seperate powersupply
[09:03] <defy> are they 3.3v?
[09:03] <jcoxon> yup
[09:04] <jcoxon> but i really need the main system to function
[09:04] <defy> yea fair enough
[09:04] <jcoxon> added an lcd last night
[09:04] <defy> really? how hard was that?
[09:04] <jcoxon> made it so i could plug it in to see what was happening
[09:04] <jcoxon> but then disconnect it
[09:04] <jcoxon> before launch
[09:04] <defy> I've been thinking about that but it looks like a daunting task
[09:04] <jcoxon> well i took the easy option and got a ttl lcd
[09:05] <defy> ah sweet
[09:05] <jcoxon> so it was a matter of connecting it ttyS0
[09:05] <jcoxon> and then sending messages
[09:05] <jcoxon> right i better go in to college to do some revision
[09:05] <jcoxon> not long now
[09:05] <jcoxon> see you all soon
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[18:51] <Ed_Moore> hi
[19:45] Last message repeated 1 time(s).
[19:45] <defy_> hey :)
[19:57] <Tiger^> yay! i've got the radio comm protocol programmed and working
[20:00] <defy_> sweet
[20:00] <defy_> what kind of range are you expecting?
[20:02] <Tiger^> with my crappy soldering skills? less than three feet! ;)
[20:02] <defy_> haha
[20:02] <Tiger^> but seriously, its 300 baud FSK
[20:02] <defy_> oh wow
[20:02] <Tiger^> and a 1W trx
[20:02] <defy_> just telemetry then?
[20:02] <Tiger^> so the balloon will burst loooong before reaching max range
[20:02] <Tiger^> yeah
[20:03] <defy_> what kind of antennas are you going to use?
[20:03] <defy_> hey you wouldn't happen to have google earth installed and a spare minute would ya?
[20:04] <Tiger^> sorry defy, i don't have google earth
[20:04] <defy_> okay, I'm using it to track my gps in realtime
[20:04] <Tiger^> oh
[20:04] <defy_> it'll do 3d too, good for balloons :D
[20:04] <Tiger^> i thought about it for a minute
[20:05] <Tiger^> but its coverage of Poland is vry poor
[20:05] <defy_> yea, same with new zealand
[20:05] <defy_> but the nz govt has some good maps, and I've overlayed them ontop of the normal ones
[20:05] <defy_> so the areas I'm interested in are nice and detailed
[20:06] <Tiger^> yeah, and i'm using a polish electronic map on my PDA
[20:06] <defy_> cool
[20:06] <Tiger^> it's based on military maps, so very detailed
[20:06] <defy_> sweet
[20:07] <Tiger^> yeah
[20:07] <Tiger^> ok, back to soldering :)
[20:07] <defy_> hehe
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[20:24] <defy_> hey, you wouldn't happen to have google earth and a spare minute would ya james?
[20:25] <jcoxon> got both :-D
[20:25] <defy_> sweet :D
[20:25] <jcoxon> though i am on a mac
[20:25] Action: jcoxon has finished revision for the day
[20:25] <defy_> don't think it'll matter
[20:25] <defy_> open up http://defy.net/ge/overlay.kml
[20:25] <defy_> and then http://defy.net/ge/track.kml
[20:26] <defy_> it should load a detailed overlay, and then start tracking my gps
[20:26] <defy_> gumstix*
[20:26] <jcoxon> ooo cool
[20:26] <jcoxon> one sedc
[20:26] <jcoxon> sec*
[20:26] <defy_> _should_, i havent gotten anyone to be able to test it from outside my lan yet
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[20:28] <defy_> it does altitude too
[20:32] <jcoxon> hmmm
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[20:32] <jcoxon> how do i set this up?
[20:32] <defy_> should just need to open them in google earth
[20:33] <jcoxon> should i do a network link?
[20:33] <defy_> file > open should do it
[20:33] <defy_> oh
[20:33] <defy_> then just enter the url
[20:34] <defy_> http://home.defy.net:100/cgi-bin/track.kml is the actual tracker, and then http://defy.net/ge/track.kml is just a kml which reloads it over and over
[20:34] <jcoxon> yeah
[20:34] <jcoxon> one sec
[20:35] <defy_> its a kml 2.0 function
[20:35] <jcoxon> oops i upset google earth
[20:35] <defy_> not sure if the mac version supports that
[20:35] <defy_> doh
[20:35] <jcoxon> one sec
[20:35] <jcoxon> re opening
[20:35] <icez> oh if only happiness could be converted into rocket fuel!
[20:37] <jcoxon> i've got a error
[20:37] <jcoxon> Fetch of GPSD 1 failed
[20:37] <defy_> hrm
[20:37] <jcoxon> Http:Server Error
[20:37] <defy_> does http://home.defy.net:100/cgi-bin/track.kml work?
[20:38] <jcoxon> ooo one sec
[20:38] <jcoxon> there is a new version
[20:38] <jcoxon> let me get that
[20:38] <defy_> hehe
[20:38] <jcoxon> it'll work
[20:38] <jcoxon> don't worry
[20:38] <jcoxon> cause then you can tell me how to do it :-
[20:38] <jcoxon> d
[20:38] <defy_> hehe
[20:38] <defy_> definitely
[20:39] <defy_> i spent hours trying to get this gpsd > google earth module working, which required a hacked gpsd
[20:39] <defy_> so i gave up, and started looking at how hard it actually was to speak to google earth...its INSANELY easy
[20:39] <jcoxon> hehe
[20:39] <jcoxon> so how does it work?
[20:40] <defy_> http://home.defy.net:100/cgi-bin/track.kml is a microperl script running on the gumstix
[20:40] <defy_> microperl seems to have real issues with system(), so i had to write a second sh script which actually connected to gpsd and output the command
[20:40] <defy_> sh script just consists of...
[20:41] <defy_> # cat location.sh
[20:41] <defy_> #!/bin/sh
[20:41] <defy_> echo P | nc localhost 2947
[20:41] <defy_> that outputs...
[20:41] <defy_> # ./location.sh
[20:41] <defy_> GPSD,P=-36.788834 174.681869
[20:41] <defy_> track.kml is a microperl script
[20:42] <defy_> http://home.defy.net:100/track.kml.txt
[20:43] <defy_> I'm sure that could be rewritten all in sh
[20:43] <defy_> but I dont know it well enough, i'm a perl person =/
[20:44] <defy_> then you have one last kml, which uses <NetworkLink> to reload the microperl script
[20:44] <defy_> there is a catch, and that there needs to be another client connected to gpsd in order for it to actually track
[20:45] <defy_> but as long as you have a logger running or something that should be fine i guess
[20:45] <jcoxon> yeah
[20:45] <jcoxon> right
[20:45] <jcoxon> still nothing
[20:45] <defy_> did that overlay work?
[20:45] <jcoxon> the overlay also doesn't work
[20:45] <jcoxon> something about mount etna
[20:45] <defy_> yea
[20:45] <defy_> the header is wrong
[20:46] <jcoxon> i can't copy the error
[20:47] <defy_> i dont know how to check to see if 2.0 is enabled
[20:48] <defy_> if you save the output of http://home.defy.net:100/cgi-bin/track.kml to a file and try to open it, does that load?
[20:51] <jcoxon> i stuck it into camino
[20:51] <jcoxon> and it won't actually load
[20:51] <defy_> does home.defy.net resolve for you?
[20:53] <jcoxon> nope
[20:53] <defy_> weird
[20:53] <defy_> http://60.234.234.98:100/cgi-bin/track.kml
[20:54] <defy_> might work
[20:54] <defy_> i can wget the file from the internet
[20:54] <defy_> weird
[20:54] <icez> it resolves here
[20:55] <jcoxon> how odd
[20:55] <defy_> 192.168.1.1 - - [01/Jan/1970:03:10:26 +0000] "GET /cgi-bin/track.kml?BBOX=-180,-90,180,23.80048231512184 HTTP/1.1" 200 0 "-" "GoogleEarthMac/LT3.1.0621.0"
[20:55] <defy_> that looks like a good sign
[20:56] <defy_> i hard coded the altitude at 200m i think
[20:56] <jcoxon> oooo wait
[20:56] <jcoxon> here we go!
[20:56] <jcoxon> north island
[20:56] <jcoxon> by the sea
[20:57] <jcoxon> and it updates itself every so often
[20:57] <defy_> hrm, weird...i added a flag to make it not do that
[20:57] <defy_> oh do you mean the cords updatE?
[20:58] <jcoxon> yup
[20:58] <defy_> thats the harbour i want to make my little harbour bot boat around
[20:58] <jcoxon> :-D
[20:58] <defy_> the overlay gives a much better picture
[20:59] <defy_> im sure theres a way to make it draw a line as it moves
[20:59] <jcoxon> hehe if i double click on the overlay i get image not found
[21:00] <defy_> weird
[21:00] <defy_> the image url is just http://defy.net/overlay.png
[21:00] <defy_> but if you cant resolve defy.net either, that could be why
[21:02] <defy_> i think the pro version will run offline with cached maps
[21:03] <defy_> could actually be a viable option for out in the field...the 3d aspect is nice
[21:03] <jcoxon> the uk detail is really good
[21:03] <jcoxon> here is our launch site
[21:03] <defy_> cool
[21:04] <jcoxon> 521248.36 00551.78
[21:04] <jcoxon> okay it doesn't like that format
[21:04] <defy_> hehe
[21:05] <jcoxon> right will be back in a sec
[21:05] <jcoxon> am restarting into ubunt
[21:05] <jcoxon> u
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[21:18] <jcoxon> yay got lcdproc working on my lcd
[21:18] <jcoxon> its telling me pretty useless things though
[21:18] <defy_> is it like a 20x2 or something? or a color one?
[21:18] <jcoxon> 16x2
[21:19] <jcoxon> black and yellow
[21:19] <jcoxon> very basic
[21:19] <defy_> cool
[21:19] <jcoxon> but perfect for checking everything is go before launch
[21:20] <defy_> i have a rs232 20x2 vfd
[21:20] <defy_> but its quite big, probably too bulky for the stix
[21:30] <jcoxon> oh
[21:57] <defy_> sweet, maxstream just sent me a software update which should get me all the way to 115kbps with no packet loss
[21:57] <jcoxon> oooo
[21:58] <defy_> its quite strange that a rf modem manifacturer has live chat support on their website
[21:58] <defy_> not that i'm complaining, they've been awesome
[21:58] <jcoxon> hmmm i'm still trying to decide about these radio modems
[21:58] <defy_> hehe
[21:59] <defy_> i was thinking about grabbing some of the 900mhz ones while I was in the states in july
[21:59] <jcoxon> you see 900mhz isn't allowed here
[21:59] <jcoxon> its the gsm freq
[21:59] <defy_> yea, neither here
[21:59] <defy_> hopefully i can get away with using them out in the middle of nowhere
[21:59] <jcoxon> yeah
[21:59] <jcoxon> i don't think i can
[22:00] <defy_> but for now im going to give 2.4 a shot, even with its pathetic penetration
[22:00] <jcoxon> also as i'm pretty transparent about techinical details
[22:00] <jcoxon> and i'm already in contact with Ofcom (the freq regulators)
[22:00] <defy_> hehe
[22:01] <jcoxon> aerocomm do seem to be the cheapest
[22:01] <jcoxon> even at £150 for the developers kit
[22:01] <defy_> yea
[22:02] <jcoxon> perhaps i should go for them
[22:04] <defy_> i guess its all in your antennas
[22:04] <defy_> the gpsstix's gps stops working when the 2.4ghz wireless module is next to the antenna
[22:05] <defy_> but it only takes about 6 inches of seperation to get it working
[22:05] <defy_> gps on top of the payload and wireless antenna on the bottom, should be fine
[22:06] <jcoxon> is that hte gps module or antenna?
[22:06] <defy_> antenna
[22:07] <defy_> it all works fine when the wireless module is near the gumstix and the gps module its self
[22:07] <defy_> only when the gps antenna gets close does it start to mess up
[22:07] <jcoxon> right
[22:07] <jcoxon> cool
[22:07] <defy_> wow my english is good today, thats what i get for pulling an all nighter
[22:08] <jcoxon> hehe
[22:08] <jcoxon> didn't notice anything ;-p
[22:08] <defy_> hehe
[22:09] <jcoxon> http://www.bb-europe.com/product_multi_family.asp?MultiFamilyId=19
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[22:09] <Ed_Moore> hi all
[22:11] <defy_> hey :)
[22:16] <jcoxon> hey Ed_Moore
[22:19] <jcoxon> to radio modem or not to radio modem that is the question
[22:20] <Ed_Moore> what's the range on the uk-legal ones?
[22:21] <jcoxon> 15km
[22:21] <jcoxon> perhaps push 20
[22:21] <Ed_Moore> hmm
[22:21] <jcoxon> if i could use the 900mhz
[22:21] <jcoxon> it would be 32km
[22:22] <Ed_Moore> that would be more worth is as you would have coverage all the way, pretty much
[22:22] <Ed_Moore> would its main use be to give you more accurate directional information?
[22:22] <jcoxon> i'd use it to stream gps coordinates
[22:23] <jcoxon> and also allow me to manual activate the cutdown
[22:23] <jcoxon> i'm sort of thinking that most of these range estimates are based on line of sight on the ground
[22:23] <jcoxon> not directly into the air
[22:24] <Ed_Moore> so it's significantly more than a mobile can do then
[22:24] <jcoxon> oh yeah
[22:24] <Ed_Moore> it's a shame you can't stick a reflector infront of a mobile mast to send everything 'up'
[22:24] <jcoxon> in theory i could keep in contact for quite a lot of the flight
[22:24] <jcoxon> actually its not range on hte mobile but to many masts
[22:25] <Ed_Moore> does it sort of simultaneously appear in multiple cells?
[22:25] <jcoxon> not actually sure
[22:26] <Ed_Moore> i can imagine at, say, 10km hight it would be roughly equidistant to several masts
[22:26] <jcoxon> yeah
[22:27] <jcoxon> i think i'm going to go with the aerocomm dev kit
[22:27] <Ed_Moore> what freq is it?
[22:27] <jcoxon> 868
[22:28] <Ed_Moore> i'm sure you could have a much longer range with a tracking parabolic dish
[22:28] <jcoxon> yeah
[22:29] <Ed_Moore> the tracking bit could be fun :)
[22:31] <jcoxon> hehe
[22:31] <Ed_Moore> I have a q: do you know how easy it is to integrate stuff into google earth?
[22:32] <Ed_Moore> for example a liv 3d model of the flightpath
[22:32] <Ed_Moore> live*
[22:34] <jcoxon> hehe
[22:34] <jcoxon> defy_, has just got it working
[22:34] <jcoxon> literally today
[22:34] <jcoxon> his gumstix is being tracked on google earth
[22:35] <Ed_Moore> oh wow
[22:35] <Ed_Moore> i'd love to see that
[22:37] <jcoxon> http://www.srcf.ucam.org/~jac208/pegasus/logs/
[22:37] <jcoxon> go to today and find the url he told me about
[22:37] <jcoxon> i've disconnected since so i don't have it infront of me
[22:40] <Ed_Moore> that's absolutelly great
[22:40] <Ed_Moore> it's just a bit of xml code
[22:43] <defy_> ah i've turned my gumstix off now so the tracking wont work
[22:44] <defy_> just updating the firmware in the wireless mods
[22:44] <Ed_Moore> despite that, i'm really really impressed
[22:44] <Ed_Moore> this is great!
[22:44] <defy_> yea it was very easy
[22:44] <Ed_Moore> gimme a shout when the gps is on
[22:45] <defy_> http://earth.google.com/kml/ has pretty much all the google earth side info you need
[22:45] <Ed_Moore> i feel so ignorant of all this stuff
[22:45] <Ed_Moore> the potential is endles
[22:46] <defy_> the rest was just getting the info from gpsd to a cgi script
[22:47] <defy_> hehe yeah
[22:47] <Ed_Moore> how often does it refresh?
[22:48] <defy_> I've got the tracking kml set to refresh every 10 seconds
[22:48] <Ed_Moore> oh yeah
[22:48] <Ed_Moore> just read the script
[22:48] <Ed_Moore> *slaps self*
[22:48] <defy_> but it was working fine at 3 seconds
[22:49] <defy_> its just a matter of how quickly it can query the new kml
[22:49] <Ed_Moore> this is really exciting
[22:49] <Ed_Moore> gosh i want to get a balloon up now :)
[22:49] <defy_> hehe
[22:49] <Ed_Moore> hmm
[22:49] <Ed_Moore> is it possible to stick altitude information in?
[22:50] Action: jcoxon has just replied to ofcoms email about avaliable frequencies
[22:50] <Ed_Moore> was it a happy or an angry reply?
[22:51] <jcoxon> it was a good reply
[22:51] <jcoxon> i sent an email about a month ago asking what frequencies were avalibale
[22:51] <jcoxon> available*
[22:51] <jcoxon> and the replied yesterday with more questions
[22:51] <jcoxon> but a positive interested tone
[22:52] <jcoxon> the person said they would search for possible frequencies
[22:52] <jcoxon> its good news.
[22:52] <jcoxon> also saves me trying to learn all the legal mumbojumbo
[22:52] <Ed_Moore> lol
[22:54] <jcoxon> hmmm might make a trip to maplin tomorrow
[22:54] <jcoxon> get a battery holder for my lcd screen
[22:56] <Ed_Moore> right, i need to dash. thanks hugely for all your help- some really fantastic info!
[22:56] <Ed_Moore> i'm really quite excited about the possibilities of playing with google earth
[22:57] <jcoxon> cya Ed_Moore
[22:57] <Ed_Moore> james: is it perhaps worth getting some sort of request for an exemption on flying HAM radios of a cambridge letter head? Might add a bit of weight to the request if you can work in some BS about the regulation holding back R&D in the UK, etc etc :)
[22:58] <Ed_Moore> sorry, tpying diarrohea again: i meant to say submit a request sort of 'from cambridge uni engineering department'
[22:59] <jcoxon> the thing is that they've already made the decision for this round of changes to the HAM licence
[22:59] <jcoxon> http://www.retrobbs.org/balloon/what.asp?who=thedoctor
[23:00] <Ed_Moore> how often is it reviewed?
[23:00] <jcoxon> oops wrong link
[23:00] <Ed_Moore> lol
[23:00] <jcoxon> http://www.soar.org.uk/
[23:00] <jcoxon> however my new contact at ofcom should reveal more methinks
[23:01] <jcoxon> the feeling at nova is that we need to have a successful launch so that we are more credible
[23:01] <Ed_Moore> sure
[23:01] <Ed_Moore> bloody red tape
[23:02] <jcoxon> it is possible to apply for permission
[23:02] <jcoxon> but that would require a lot of effort
[23:02] <jcoxon> the plan was to leave it up to project soar
[23:02] <jcoxon> they are ham radio people
[23:02] <Ed_Moore> yeah
[23:02] <Ed_Moore> cool
[23:02] <jcoxon> know what they are doing - i'll explore other avenues
[23:02] <Ed_Moore> speaking of nova and peg 3
[23:03] <Ed_Moore> if you know a launch date say a couple of days in advance, and it's a weekend, i am planning on coming up to see a few friends anyway, but would love to be able to come along for a laucnh- might that be possible?
[23:03] <jcoxon> of course
[23:03] <jcoxon> we'll know 48 hours before
[23:03] <Ed_Moore> that would be great
[23:04] <jcoxon> thats the latest i can leave it before speaking to air traffic control and the CAA
[23:04] <Ed_Moore> cool
[23:04] <jcoxon> and we are planning to do nearly a launch a week this summer
[23:04] <Ed_Moore> yeah, i'd love to see a launch
[23:04] <jcoxon> need all the help we can get
[23:04] <Ed_Moore> right, i'm going to hit the sack
[23:04] <Ed_Moore> 5am start tomorrow
[23:04] <Ed_Moore> sodding work
[23:04] <Ed_Moore> thanks again
[23:05] macfreak4 (n=macfreak@24-107-201-22.dhcp.stls.mo.charter.com) joined #highaltitude.
[23:05] <macfreak4> wow new people
[23:05] <Ed_Moore> hi
[23:05] <macfreak4> hello
[23:05] <macfreak4> :D
[23:05] <Ed_Moore> mmm, total n))b, but very interested :)
[23:06] <Ed_Moore> n00b*
[23:06] <macfreak4> lol
[23:06] <macfreak4> its ok
[23:06] <macfreak4> me too
[23:06] <Ed_Moore> i'll not bother attempting l11t
[23:06] <macfreak4> (this is my first launch)
[23:06] <Ed_Moore> i'm not l11t enough
[23:06] <macfreak4> lol
[23:06] <Ed_Moore> i'm still researching
[23:06] <macfreak4> ah kk
[23:06] <Ed_Moore> got a linux SBC, and a few ideas
[23:06] <Ed_Moore> that's about it so far
[23:06] <jcoxon> and 4 jet engines
[23:07] <Ed_Moore> :)
[23:07] <macfreak4> yea i started with about a month or two of pure research before deciding what I wanted to do
[23:07] <Ed_Moore> assist the balloon launch
[23:07] <Ed_Moore> yeah
[23:08] <jcoxon> Ed_Moore, it won't be long until you can be on the nova team!
[23:08] <Ed_Moore> i'm planning on trying to lauch something in the second half of august
[23:08] <Ed_Moore> i know!
[23:08] <jcoxon> ooo cool
[23:08] <jcoxon> perfectly possible
[23:08] <Ed_Moore> will seek it out, rambo style, when i come up :)
[23:08] <jcoxon> hehe
[23:08] <jcoxon> the nova project leader is at churchill
[23:08] <macfreak4> oh got an update for yu
[23:08] <jcoxon> he'll find you probably first
[23:08] <Ed_Moore> perfect
[23:08] <macfreak4> you*
[23:08] <Ed_Moore> lol
[23:08] <jcoxon> cool
[23:09] <macfreak4> launch window opens 2nd-3rd of June
[23:09] <macfreak4> 4 me
[23:09] <Ed_Moore> does the prject leader come on here?
[23:09] <Ed_Moore> oh wow, that's exciting
[23:09] <jcoxon> not yet
[23:09] <jcoxon> i'm still trying to persuade him
[23:09] <jcoxon> but exams are in the way
[23:09] <Ed_Moore> i'm on holiday and internetless next week :(
[23:09] <jcoxon> oh right
[23:10] <Ed_Moore> do you have a sight macfreak?
[23:10] <Ed_Moore> site*
[23:10] <Ed_Moore> my typing really is piss poor, i must apologise
[23:11] <Ed_Moore> my fingers just seem to go into autopilot and type any old thing
[23:11] <macfreak4> yea
[23:11] <macfreak4> http://macfreak4.homeunix.com
[23:11] <macfreak4> oh lol
[23:11] <macfreak4> everyone has those days
[23:11] <macfreak4> ;)
[23:11] <Tiger^> uh
[23:12] <Ed_Moore> day....year :)
[23:12] <Tiger^> damn j-pole
[23:12] <Tiger^> hate it already
[23:12] <macfreak4> what
[23:12] <macfreak4> how?
[23:13] <Ed_Moore> right, need to dash
[23:13] <Ed_Moore> thanks all very much!
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[23:13] <macfreak4> Tiger^: what's wrong w/ your j-pole?
[23:13] <Tiger^> macfreak4: i have NO idea
[23:14] <Tiger^> macfreak4: i made it exactly to the specs
[23:14] <macfreak4> oh?
[23:14] <macfreak4> well how does it not work?
[23:14] <macfreak4> because even if the measurements are wrong, you should still get a signal
[23:14] <macfreak4> albeit with shorter range
[23:14] <Tiger^> i get a signal, BUT
[23:14] <macfreak4> i built mine already and it appears to work fine
[23:14] <Tiger^> the trx actually works better without any antenna
[23:14] <macfreak4> pph
[23:14] <macfreak4> wow
[23:14] <Tiger^> not to mention the rubber duckie
[23:15] <macfreak4> that's... impressive
[23:15] <macfreak4> in a bad way
[23:15] <Tiger^> yeah :(
[23:15] <Tiger^> i've checked it twice, everything's like in the specs
[23:16] <Tiger^> http://www.vcars.org/tech/J_Pole2M.html
[23:16] <macfreak4> *looks*
[23:16] <Tiger^> the guy with balloon v1.0 used it
[23:16] <macfreak4> oh
[23:16] <macfreak4> did you build it according to your frequency specs?
[23:16] <macfreak4> b/c my radio is in the 70cm band I had to change the lengths
[23:16] <macfreak4> (haven't actually tested the performance of mine yet but i plan on it)
[23:16] <Tiger^> yeah, i'm using 2m band
[23:17] <macfreak4> oh
[23:17] <Tiger^> so i didn't even have to change anything
[23:17] <macfreak4> did you follow the setp by step directions, because the image has an error or two in it
[23:17] <Tiger^> yeah i did
[23:17] <macfreak4> hmm
[23:17] <Tiger^> hmm, one error is that the end is not twisted
[23:17] <macfreak4> what kind of rf connector are you using?
[23:17] <macfreak4> ya
[23:18] <Tiger^> a 5 feet rg58 with a bnc connector
[23:18] <macfreak4> oh ok
[23:19] <jcoxon> macfreak4, glad you have a launch window! :-D
[23:19] <macfreak4> me too :D
[23:19] <jcoxon> and a site?
[23:19] Action: Tiger^ is totally puzzled
[23:19] <Tiger^> hi jcoxon
[23:19] <jcoxon> hey Tiger^
[23:19] <macfreak4> yea http://macfreak4.homeunix.com/projects/ensure
[23:19] <jcoxon> no a launch site
[23:19] <jcoxon> hehe
[23:19] <macfreak4> oh
[23:19] <macfreak4> yea
[23:19] <macfreak4> Tyson
[23:19] <jcoxon> cool
[23:20] <macfreak4> Washington University's Research Center
[23:20] <jcoxon> ooo cool
[23:20] <macfreak4> ya its an awesome place
[23:20] <macfreak4> they have bunkers full of cool stuff
[23:20] Action: jcoxon is going to launch before macfreak4
[23:20] <macfreak4> like old computers and equipment
[23:20] <macfreak4> really?
[23:20] <macfreak4> when?
[23:20] <jcoxon> actually
[23:20] <jcoxon> no he isnt'
[23:21] <jcoxon> obviously time for bed
[23:21] <macfreak4> what
[23:21] <macfreak4> now i'm confused
[23:21] <jcoxon> oh i'm not launching before you
[23:21] <macfreak4> oh
[23:21] <macfreak4> so it was a joke
[23:21] <jcoxon> i miss read when you were launching
[23:21] <macfreak4> o ok
[23:21] <jcoxon> i though it was
[23:21] <jcoxon> obviously to tired to think
[23:21] <macfreak4> gotcha
[23:21] <macfreak4> lol
[23:21] <jcoxon> hehe
[23:22] Action: jcoxon has done far to much revision
[23:22] <Tiger^> macfreak4: can you give me some url to the specs you used for your j-pole?
[23:22] <jcoxon> night all
[23:23] <Tiger^> i've googled a bit and it seems every site has different lengths for 2m :(
[23:23] <Tiger^> nite jcoxon
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[23:23] <macfreak4> well
[23:23] <macfreak4> i used calculations in the spreadsheet provided on that page
[23:24] <Tiger^> oh
[23:28] <Tiger^> ok, i'll make it again from the start
[23:28] <Tiger^> :)
[23:28] <Tiger^> but i doubt it'll make a difference
[23:30] <macfreak4> but like i said i haven't tested the actual range of the antenna
[23:30] <macfreak4> so i may be having the same problem as you but i just don't know it
[23:30] <Tiger^> hmm
[23:30] <Tiger^> you know
[23:30] <macfreak4> I'm going to build two - one longer one and one shorter one, since I have extra cable
[23:31] <Tiger^> i have the transmitting radio in the kitchen (with the jpole)
[23:31] <Tiger^> and the receiving end in my room
[23:31] <Tiger^> the power is 1W
[23:31] <Tiger^> and without any antenna at the transmitting end
[23:32] <Tiger^> it works like a charm
[23:32] <Tiger^> or with a rubber duckie
[23:32] <Tiger^> or with a mag mount
[23:32] <Tiger^> but when i connect the j-pole i don't even hear anything in the receiving radio
[23:32] <Tiger^> only the carrier
[23:33] <Tiger^> the only way to make it work is to lay the j-pole on the floor in the corridor
[23:34] <Tiger^> and what's interesting, it stops working if i hang it from the ceiling in the same spot
[23:34] <Tiger^> as i said, i'm completely puzzled :)
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[23:42] <macfreak4> hey
[00:00] --- Thu May 25 2006