highaltitude.log.20060708

[00:04] malgar (n=malgar@adsl-ull-88-202.47-151.net24.it) left irc: "*** E' solo l'urto con un iceberg, che vuoi che sia, questa è una nave inaffondabile. *** 75$/barile"
[00:22] jcoxon (n=jcoxon@jac208.caths.cam.ac.uk) joined #highaltitude.
[00:29] PabloO (n=pablo@168.226.136.208) joined #highaltitude.
[00:30] <jcoxon> hey PabloO
[00:30] PabloO (n=pablo@168.226.136.208) left #highaltitude ("Konversation terminated!").
[00:30] <jcoxon> bye PabloO
[00:33] <rocketboy> night all
[00:33] rocketboy (n=steve@217.47.75.147) left irc:
[01:00] jcoxon (n=jcoxon@jac208.caths.cam.ac.uk) left irc: "Leaving"
[08:13] rocketboy (n=steve@217.47.75.5) joined #highaltitude.
[08:13] icez (n=icez@ip68-3-56-121.ph.ph.cox.net) left irc: Remote closed the connection
[08:20] malgar (n=malgar@adsl-ull-97-207.47-151.net24.it) joined #highaltitude.
[08:25] rocketboy (n=steve@217.47.75.5) left irc:
[09:18] EvilGuru (n=evilguru@margaret2708.plus.com) joined #highaltitude.
[09:20] EvilGuru (n=evilguru@margaret2708.plus.com) left irc: Client Quit
[09:53] rocketboy (n=steve@217.47.75.147) joined #highaltitude.
[09:53] jcoxon (n=jcoxon@jac208.caths.cam.ac.uk) joined #highaltitude.
[10:07] <rocketboy> can anyone tell me how to upload images to the wiki - I have read the help but still don't see how to do it - maybee I dont have the permissions?
[10:11] <jcoxon> oooo i've never done that
[10:11] <jcoxon> i'll have a quick browse
[10:14] <jcoxon> i think ben (phatmonkey) would need to upload them to a particular file on the server
[10:14] <jcoxon> i'll email him
[10:16] EvilGuru (n=evilguru@margaret2708.plus.com) joined #highaltitude.
[10:16] <jcoxon> rocketboy, in regards to power supplies - what catagory to energizier lithium AAA comes under
[10:17] <rocketboy> thanks
[10:18] <rocketboy> i'll take a look
[10:19] <rocketboy> are those the 1.5V ones?
[10:19] <jcoxon> yeah
[10:19] <jcoxon> i've found the data sheet
[10:20] <jcoxon> seems that henry was right the AA are better (they provide more the twice the mAH and yet only weigh twice the weight
[10:20] <rocketboy> if so they are Lithium Iron Disulphide (not lithium-ion)
[10:20] <jcoxon> yup thats them
[10:21] <jcoxon> those are what quite a lot of people use
[10:25] <jcoxon> rocketboy, i'll soon know about launch dates (i've started discussing it with the nova guys)
[10:33] <rocketboy> excellent
[10:34] <rocketboy> are the batteries e2 l91 http://www.smallbattery.company.org.uk/index.htm?http://www.smallbattery.company.org.uk/sbc_aa_lithium.htm
[10:36] <jcoxon> i'm using hte AAA version:
[10:36] <jcoxon> http://www.smallbattery.company.org.uk/index.htm?http://www.smallbattery.company.org.uk/sbc_aa_lithium.htm
[10:36] <jcoxon> oops wrong link
[10:36] <jcoxon> L92
[10:46] <rocketboy> ta - i'll add it to the wiki shortly
[10:48] <jcoxon> cool
[10:52] phatmonkey (n=ben@firshman.co.uk) joined #highaltitude.
[10:53] <phatmonkey> jcoxon, shoudlbe fixed now
[10:53] <jcoxon> cool
[10:53] <jcoxon> actually rocketboy was asking me so i asked you :-D
[10:53] <jcoxon> hows the battle with the gumstx?
[10:54] <jcoxon> gumstix*
[10:55] <phatmonkey> no progress...
[10:55] <phatmonkey> tried all the suggestions onm the mailing list for getting i2c working, nothing seems to work
[10:55] <jcoxon> whats failing?
[10:56] <phatmonkey> i2c just doesn't seem to work
[10:56] <jcoxon> modules loading?
[10:56] <phatmonkey> oh yes, it's something to do with the robostix
[10:56] <phatmonkey> i2c on the gumstix is all working, it's just communication
[10:56] <phatmonkey> it probably has the wrong address, but i did rewrite the EEPROM
[10:58] <jcoxon> oh
[10:58] <rocketboy> I added the L92s to the wiki - all round good batteries for ballooning
[10:58] <jcoxon> yeah though the AA versions are probably better
[10:59] <jcoxon> phatmonkey, sadly i've never even seen a robostix so i can't really help
[10:59] <phatmonkey> late breakfast... bbiab
[11:24] <rocketboy> bbl
[11:25] jcoxon (n=jcoxon@jac208.caths.cam.ac.uk) left irc: "Leaving"
[11:45] malgar (n=malgar@adsl-ull-97-207.47-151.net24.it) left irc: "*** E' solo l'urto con un iceberg, che vuoi che sia, questa è una nave inaffondabile. *** 75$/barile"
[11:45] malgar (n=malgar@adsl-ull-97-207.47-151.net24.it) joined #highaltitude.
[12:48] Freddie (n=evilguru@margaret2708.plus.com) joined #highaltitude.
[12:56] EvilGuru (n=evilguru@margaret2708.plus.com) left irc: Read error: 110 (Connection timed out)
[13:05] jcoxon (n=jcoxon@jac208.caths.cam.ac.uk) joined #highaltitude.
[13:11] <phatmonkey> hey james
[13:16] <phatmonkey> i might try again with mailman
[13:17] <phatmonkey> it is a bit of a bitch to get working
[13:17] <phatmonkey> we could always release some code and use sf's mailing lists ;)
[13:17] <jcoxon> hehe
[13:18] <jcoxon> yeah cool, don't spend to much time on it
[13:18] <jcoxon> ukhas wiki is beginning to grow :-)
[13:49] phatmonkey (n=ben@firshman.co.uk) left irc: "Ex-Chat"
[14:15] jcoxon (n=jcoxon@jac208.caths.cam.ac.uk) left irc: "Leaving"
[14:32] rocketboy (n=steve@217.47.75.147) left irc:
[14:38] jcoxon (n=jcoxon@jac208.caths.cam.ac.uk) joined #highaltitude.
[14:42] Freddie (n=evilguru@margaret2708.plus.com) left irc: Read error: 110 (Connection timed out)
[14:51] EvilGuru (n=evilguru@margaret2708.plus.com) joined #highaltitude.
[15:38] rocketboy (n=steve@217.47.75.147) joined #highaltitude.
[15:39] jcoxon (n=jcoxon@jac208.caths.cam.ac.uk) left irc: "Leaving"
[16:13] Freddie (n=evilguru@margaret2708.plus.com) joined #highaltitude.
[16:16] EvilGuru (n=evilguru@margaret2708.plus.com) left irc: Read error: 110 (Connection timed out)
[16:49] icez (n=icez@ip68-3-56-121.ph.ph.cox.net) joined #highaltitude.
[17:18] jcoxon (n=jcoxon@85-210-132-246.dsl.pipex.com) joined #highaltitude.
[17:18] Freddie (n=evilguru@margaret2708.plus.com) left irc: Read error: 110 (Connection timed out)
[17:29] jcoxon (n=jcoxon@85-210-132-246.dsl.pipex.com) left irc: "Leaving"
[18:16] EvilGuru (n=evilguru@margaret2708.plus.com) joined #highaltitude.
[18:44] Freddie (n=evilguru@margaret2708.plus.com) joined #highaltitude.
[18:51] EvilGuru (n=evilguru@margaret2708.plus.com) left irc: Read error: 113 (No route to host)
[20:56] phatmonkey (n=ben@margaret2708.plus.com) joined #highaltitude.
[21:33] phatmonkey (n=ben@margaret2708.plus.com) left irc: "This computer has gone to sleep (zzz...)"
[21:39] phatmonkey (n=ben@margaret2708.plus.com) joined #highaltitude.
[21:42] macfreak4 (n=macfreak@24-107-201-22.dhcp.stls.mo.charter.com) joined #highaltitude.
[22:20] phatmonkey_ (n=ben@margaret2708.plus.com) joined #highaltitude.
[22:29] phatmonkey (n=ben@margaret2708.plus.com) left irc: Read error: 113 (No route to host)
[22:30] macfreak4-- (n=macfreak@24-107-201-22.dhcp.stls.mo.charter.com) joined #highaltitude.
[22:34] phatmonkey__ (n=ben@margaret2708.plus.com) joined #highaltitude.
[22:34] phatmonkey__ (n=ben@margaret2708.plus.com) left irc: Remote closed the connection
[22:34] phatmonkey_ (n=ben@margaret2708.plus.com) left irc: Connection reset by peer
[22:36] macfreak4 (n=macfreak@24-107-201-22.dhcp.stls.mo.charter.com) left irc: Read error: 110 (Connection timed out)
[22:37] Nick change: macfreak4-- -> macfreak4
[22:43] jimthree (n=Jim@jimthree.plus.com) joined #highaltitude.
[22:45] <macfreak4> hi
[22:53] <jimthree> Hi there, hows it going?
[22:56] <jimthree> I am so glad i've found UKHAS :) I've had my own balloon ambitions for a while now and I think this is the motivation i needed to do something about it
[22:56] <icez> :D
[22:57] <jimthree> so many questions but so much more to read! has anyone had any success in the uk with an 802.11x system?
[22:58] <macfreak4> no one's tried
[22:58] <macfreak4> it's going to be pricey, for sure
[22:58] <macfreak4> at least, more than a cell phone alone
[22:58] <macfreak4> but I think it's feasible
[22:59] <Tiger^> i'm going to try during my second flight
[23:00] <Tiger^> just because the broadcom board's got integrated wifi :D
[23:00] <jimthree> I was reading the other day about the record for the longest wi-fi connection, which was an 802.11b equiped balloon and a ground station with a dish. some where in sweden iirc, although agreed that it will be pricy
[23:01] <macfreak4> first, you'll need amplifiers, because the output from commercial wifi cards is never going to make the ~18 miles, at the least, to a balloon at its highest altitude
[23:01] <macfreak4> second, you're going to need to have at least one high gain antenna, which means parabolic dishes or cantennas
[23:02] <jimthree> and i'm guessing there could be tracking issues with that
[23:02] <macfreak4> and that means precise positioning
[23:02] <macfreak4> yeah
[23:02] <jimthree> nothing is easy huh ;)
[23:02] <macfreak4> so what most ppl have thought about is an automatically tracking parabolic dish antenna
[23:02] <macfreak4> controlled by a computer
[23:02] <Tiger^> hehe
[23:03] <Tiger^> i'm going to try a standard rubber duck omni :)
[23:03] <macfreak4> somehow getting the angle needed by trigonometry using the last known elevation of the balloon and gps positioning
[23:03] <macfreak4> well, there's no problem with trying, just have another means of communication ;)
[23:03] <Tiger^> not that i need it ;)
[23:04] <Tiger^> but a rubber ducky weighs, um, 20 grams?
[23:04] <macfreak4> lol yeah
[23:04] <macfreak4> the balloon's antenna would need to be omnidirectional
[23:05] <jimthree> which of you guys is behind the pegasus project?
[23:05] <Tiger^> jimthree: jcoxon. he's not here now ;)
[23:05] <Tiger^> macfreak4: are you thinking S-band j-pole? ;))
[23:06] <macfreak4> hehe
[23:06] <macfreak4> that would be tiny
[23:06] <Tiger^> yeah, just imagine cutting it to minimize SWR
[23:06] <Tiger^> ;)
[23:06] <macfreak4> lol
[23:06] <macfreak4> a biquad wouldn't be bad
[23:07] <macfreak4> it has a flat reflector, which would work well
[23:07] <macfreak4> because it would reflect the signal from going into space
[23:07] <macfreak4> and save the precious rf power ;)
[23:08] <Tiger^> yeah
[23:08] <jimthree> has anyone experimented with steerable canopys for decent rather than just usual round parachutes?
[23:08] <macfreak4> isnt defy on that?
[23:08] <macfreak4> i can't remember...
[23:08] <Tiger^> yeah
[23:08] <Tiger^> and phatmonkey
[23:09] <jimthree> some of the rocket guys are playing with that
[23:09] <jimthree> and i'm worried about something landing where it shouldn't
[23:09] Action: Tiger^ won't play with rockets unless he's able to get them into orbit ;)
[23:09] <Tiger^> jimthree: that's the risk.
[23:10] <jimthree> we don't have those wide open planes like they do in the states :(
[23:10] <macfreak4> and the fun part
[23:10] <Tiger^> that's why we use cutdown devices
[23:10] <macfreak4> yeah i guess i'm pretty lucky...
[23:10] <Tiger^> jimthree: where are you from?
[23:10] <macfreak4> middle of missouri, usa
[23:10] <macfreak4> no oceans for miles
[23:11] <jimthree> UK, based in london most of the time but able to launch from sites in near Banbury (right in the middle of the country) and shropshire, close to wide open rural spaces
[23:11] <Tiger^> well
[23:11] <Tiger^> i'm from Poland
[23:12] <Tiger^> i live in warsaw but i can't launch from anywhere near the city
[23:12] <Tiger^> so i've got a launch site in a rural area
[23:12] <Tiger^> lots of forests though
[23:12] <jimthree> ahhh are you running the cygnus project?
[23:13] <Tiger^> yup
[23:13] <jimthree> cool :)
[23:13] <Tiger^> :)
[23:15] phatmonkey (n=ben@firshman.co.uk) joined #highaltitude.
[23:15] phatmonkey (n=ben@firshman.co.uk) left irc: Remote closed the connection
[23:16] phatmonkey (n=ben@firshman.co.uk) joined #highaltitude.
[23:16] phatmonkey (n=ben@firshman.co.uk) left irc: Remote closed the connection
[23:16] phatmonkey (n=ben@firshman.co.uk) joined #highaltitude.
[23:34] <jimthree> see you later i'm outta here.
[23:34] jimthree (n=Jim@jimthree.plus.com) left irc:
[00:00] --- Sun Jul 9 2006