highaltitude.log.20110829

[00:28] <kristianpaul> http://www.spaceflightnow.com/station/exp28/110827unmannedops/
[00:32] natrium42 (~xela@171.66.85.190) left irc: Ping timeout: 240 seconds
[00:33] <SpeedEvil> Kinda silly.
[00:42] wolfspraul (~wolfsprau@221.220.186.233) joined #highaltitude.
[00:44] <Zuph_> ls
[00:44] <Zuph_> whoops, wrong window
[00:44] Nick change: Zuph_ -> Zuph
[00:46] natrium42 (~xela@128.12.118.244) joined #highaltitude.
[00:47] <Zuph> Evening natrium42, still out on the West Coast?
[01:21] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 246 seconds
[01:42] <natrium42> Zuph:
[01:42] <natrium42> yeah
[02:18] shipit (~shipit@c-67-180-23-104.hsd1.ca.comcast.net) left irc: Remote host closed the connection
[02:27] Bryanstein (~Bryanstei@shellium/admin/bryanstein) left irc: Read error: Connection reset by peer
[02:28] <MrCraig> g'night
[02:28] MrCraig (craig@host109-154-225-50.range109-154.btcentralplus.com) left #highaltitude.
[02:35] Bryanstein (~Bryanstei@shellium/admin/bryanstein) joined #highaltitude.
[02:35] Laurenceb_ (~Laurence@host86-177-56-66.range86-177.btcentralplus.com) joined #highaltitude.
[02:54] Bryanstein (~Bryanstei@shellium/admin/bryanstein) left irc: Quit: ZNC - http://znc.sourceforge.net
[03:00] Bryanstein (~Bryanstei@shellium/admin/bryanstein) joined #highaltitude.
[03:48] jasonb (~jasonb@adsl-66-124-73-250.dsl.sntc01.pacbell.net) joined #highaltitude.
[03:57] Dan-K2VOL (~Dan-K2VOL@96-28-234-61.dhcp.insightbb.com) joined #highaltitude.
[03:58] nickolai89 (~nickolai@184.17.96.104) joined #highaltitude.
[03:58] <Hibby> Dan-K2VOL: get to bed
[03:59] <nickolai89> Anyone using an ISM300F2 for their GPS might mind this interesting/useful: http://www.nickolai.me/1/post/2011/08/source-of-gps-problems-potentially-located.html (I'm looking at you Upu!)
[04:00] <nickolai89> and now time for bed, night all!
[04:03] <Dan-K2VOL> haha
[04:03] <Dan-K2VOL> hibby good plan
[04:03] <Hibby> Dan-K2VOL: lol
[04:03] <Hibby> Dan-K2VOL: don't worry about waking me tomorrow
[04:03] <Hibby> I'l likely need to awaken at that time to skype china :)
[04:07] <Dan-K2VOL> :-)
[04:27] natrium42 (~xela@128.12.118.244) left irc: Ping timeout: 258 seconds
[04:27] Laurenceb_ (~Laurence@host86-177-56-66.range86-177.btcentralplus.com) left irc: Ping timeout: 240 seconds
[04:31] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) left irc: Excess Flood
[04:33] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) joined #highaltitude.
[04:34] natrium42 (~xela@171.66.89.180) joined #highaltitude.
[04:35] Dan-K2VOL (Dan-K2VOL@96-28-234-61.dhcp.insightbb.com) left #highaltitude.
[04:58] Jasperw (~jasperw@thingy.pointless.net) left irc: Quit: Leaving.
[05:02] k6hx (~markv@c-98-248-145-114.hsd1.ca.comcast.net) left irc: Ping timeout: 240 seconds
[05:07] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) left irc: Excess Flood
[05:09] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) joined #highaltitude.
[05:20] shipit (~shipit@c-67-180-23-104.hsd1.ca.comcast.net) joined #highaltitude.
[06:24] SamSilver_ (2985f435@gateway/web/freenode/ip.41.133.244.53) left irc: Quit: Page closed
[06:25] SamSIlver (2985f435@gateway/web/freenode/ip.41.133.244.53) joined #highaltitude.
[06:25] SamSIlver (2985f435@gateway/web/freenode/ip.41.133.244.53) left irc: Client Quit
[06:26] m1x10 (~mixio@ppp046177007098.dsl.hol.gr) joined #highaltitude.
[06:26] SamSilver (2985f435@gateway/web/freenode/ip.41.133.244.53) joined #highaltitude.
[06:31] nickolai1989 (~nickolai@184.17.96.104) joined #highaltitude.
[06:35] nickolai (~nickolai@184.17.96.104) left irc: Ping timeout: 240 seconds
[06:41] natrium42 (~xela@171.66.89.180) left irc: Ping timeout: 250 seconds
[06:48] natrium42 (~xela@128.12.120.213) joined #highaltitude.
[07:26] m1x10 (~mixio@ppp046177007098.dsl.hol.gr) left irc:
[07:30] number10 (56813a80@gateway/web/freenode/ip.86.129.58.128) joined #highaltitude.
[07:50] <Upu> morning
[07:51] <Upu> nickolai1989 thx , I think the only reason that inductor is there is to act as a fuse
[08:14] BrainDamage (BrainDamag@i.love.tiltshellz.org) left irc: Quit: ZNC - http://znc.sourceforge.net
[08:14] BrainDamage (BrainDamag@i.love.tiltshellz.org) joined #highaltitude.
[08:20] <number10> Upu whe do you plan to launch Ava
[08:24] <fsphil> yay bank holiday :)
[08:28] <number10> :) but work tomorrow :(
[08:31] SamSilver (2985f435@gateway/web/freenode/ip.41.133.244.53) left irc: Ping timeout: 252 seconds
[08:32] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude.
[08:33] <Upu> hey number10 when David Miller sorts himself out and when the weather stops being against me
[08:38] <number10> ic - where are you lunching from?
[08:39] jcoxon (~jcoxon@185.171.pn.adsl.brightview.com) joined #highaltitude.
[08:40] daveake_ (~daveake@daveake.plus.com) joined #highaltitude.
[08:46] <jcoxon> morning all
[08:47] <LazyLeopard> morning
[08:47] <number10> morning
[08:48] <jcoxon> LazyLeopard, as an expert tracker, if i was going to add some CW to the sequence where would you suggest i add it
[08:48] <jcoxon> the last pico flight occasionally we could hear the rtty but not decode it
[08:48] <jcoxon> so CW of the altitude would have been great
[08:55] <LazyLeopard> Well, obviously one side or other of the RTTY. I think probably on the front might be better, but that's a mild hunch rather than a clear opinion.
[08:56] <jcoxon> fair enough
[08:56] <jcoxon> i'd use the same setup for rtty
[08:56] <jcoxon> so i'd just modulate the Mark signal
[08:56] <jcoxon> so you could use it for locking onto the signal
[08:57] <LazyLeopard> With a power-saving type of set-up, the CW would also provide a marker that might enable the listener to line up in time to catch the RTTY if it was drifting.
[08:57] <jcoxon> well this is the thing
[08:57] <jcoxon> i need a bit more powersaving
[08:57] <jcoxon> its the GPS that takes up the juice
[08:57] <jcoxon> so i was also thinking of adding CW and Hell in between
[08:58] <jcoxon> to provide more continous signal that is easier to track
[08:59] <jcoxon> the other option is gps syncing them
[08:59] <jcoxon> perhaps a transmission every minute on the minute
[09:00] natrium42 (~xela@128.12.120.213) left irc: Ping timeout: 245 seconds
[09:03] GW8RAK (~chatzilla@host-78-144-92-224.as13285.net) joined #highaltitude.
[09:04] GW8RAK (~chatzilla@host-78-144-92-224.as13285.net) left irc: Client Quit
[09:06] <LazyLeopard> How long does the RTTY take? How long does the GPS need power for to get a fix?
[09:07] <jcoxon> from low power mode (RF stuff off) to lock can be as quick as 10-15seconds
[09:10] <jcoxon> and the rrty takes about 25 seconds
[09:11] <LazyLeopard> Just wondering what'd be a sensible way to line up fix and transmissions. Obvioously the RTTY should send the latest fix. How long would the CW and Hell take?
[09:11] <jcoxon> they can take however long or short we want
[09:12] <jcoxon> i think the issue people find is that they can't find the transmission
[09:12] <jcoxon> or the breaks mess everything up
[09:12] <LazyLeopard> There's an old morse numeric shorthand (0-9 map to tauv4e6bdn) that'd cut the length of a five-digit height a bit...
[09:13] <jcoxon> so could do
[09:13] <jcoxon> from sleep:
[09:13] <jcoxon> power up GPS
[09:13] <jcoxon> once got lock - get data, shutdown GPS
[09:13] <jcoxon> tx CW altitude, RTTY, Hell back to sleep
[09:14] <jcoxon> repeat
[09:14] <Upu> Morning jcoxon
[09:14] <Upu> question
[09:14] <Upu> why do you need power saving ?
[09:14] <jcoxon> cause i don't have the mass allowance for large batteries
[09:14] <jcoxon> and these flights are potentially long
[09:15] <Upu> ok
[09:15] <Upu> the issue I had was I had no idea where to tune in
[09:15] <Upu> and no one seemed to know what the gap between transmissions was
[09:16] <jcoxon> let me rig up a setup now and see it works well
[09:16] <Upu> ok
[09:18] <LazyLeopard> Worth over-lapping activites? (Say: Power up GPS. Tx morse callsign, Hell callsign. Wait for lock and read GPS data. Turn off GPS. Tx RTTY, Hell altitude, CW altitude.)
[09:18] <jcoxon> yeah
[09:18] <jcoxon> the risk is the gap on waiting for the lock
[09:18] <SpeedEvil> Perhaps, if GPS lock time is not influenced by transmissions
[09:18] <LazyLeopard> ...or is that as crazy as it looks...
[09:19] <Upu> how long will it transmit for on the battery if it does it continously ?
[09:19] <LazyLeopard> Yeah. Keeping the GPS away from Tx probably reduces risk. ;)
[09:23] <fsphil> might be worth transmitting a brief 'blip' every few seconds during sleep
[09:23] <fsphil> just to help identify it
[09:25] <fsphil> nah forget that, ntx2 is all over the place for about a second
[09:27] <LazyLeopard> Yeah, there's usually a j-shaped trail as it warms up...
[09:31] <jcoxon> i think the independent transmission sequence is quite a good idea
[09:33] <number10> how frequent qas thw rtty transmission on picoatlas?
[09:33] <number10> was
[09:33] <number10> the
[09:33] <jcoxon> about 2x a min
[09:34] <number10> ah, I did not realise that - mind you I had water in antenna connection outside
[09:35] <LazyLeopard> Yeah, lots of rain here that day, too...
[09:35] <fsphil> hehe, southgate arc's news page has a story "Horus gets high" that's not about the record altitude. very odd
[09:36] <number10> need a more permanent setup - Upu what is your collinear - do u have link to shop?
[09:38] <LazyLeopard> Yeah, Darkside mentioned those plans.
[09:38] <Darkside> hey all
[09:39] <Darkside> i'm in Hong Kong!
[09:39] <daveake_> g'day
[09:39] <daveake_> Deliberately?
[09:39] <Darkside> layover
[09:39] <Darkside> also fuck yeah free wifi
[09:39] <fsphil> lol
[09:40] <number10> language has deteriorated - Darkside must have landed
[09:40] <Darkside> haha
[09:40] <number10> where are you know?
[09:40] <number10> HK ic
[09:42] <number10> Upu is it this one you have : http://www.radioworld.co.uk/catalog/watson-2m70cm-base-station-vertical-antenna-p-1947.html?osCsid=3c5e41e66b5e58fdd2c4e9f0f34790ba
[09:44] <number10> * must learn to type
[09:45] Gillerire (~Jamie@182-239-173-236.ip.adam.com.au) joined #highaltitude.
[09:47] <fsphil> that matches mine pretty closely
[09:53] <Upu> hey number10 thats mine yes
[09:54] <Upu> the bigger one was just a little too large and I get some reasonable results with that
[09:55] <Upu> got it up as high as I could : http://ava.upuaut.net/files/watson.jpg
[09:56] <Upu> afk
[09:59] Hiena (~boreger@81.93.195.181.datatrans.hu) joined #highaltitude.
[10:08] <number10> ta
[10:10] RJG_ (5228b3ab@gateway/web/freenode/ip.82.40.179.171) joined #highaltitude.
[10:30] Laurenceb_ (~Laurence@host86-177-56-66.range86-177.btcentralplus.com) joined #highaltitude.
[10:51] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[10:51] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Read error: Connection reset by peer
[10:52] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[10:56] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 258 seconds
[11:01] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[11:05] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 260 seconds
[11:10] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[11:11] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Read error: Connection reset by peer
[11:11] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[11:15] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 240 seconds
[11:21] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[11:25] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 264 seconds
[11:30] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[11:32] jcoxon (~jcoxon@185.171.pn.adsl.brightview.com) left irc: Quit: Leaving
[11:35] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 276 seconds
[11:39] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[11:43] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 240 seconds
[11:48] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[11:53] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 245 seconds
[11:58] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[12:02] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 260 seconds
[12:07] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[12:11] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 240 seconds
[12:16] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[12:18] Gillerire (~Jamie@182-239-173-236.ip.adam.com.au) left irc: Quit: Quit
[12:20] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 245 seconds
[12:25] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[12:28] TimZaman (~chatzilla@535602CA.cm-6-7a.dynamic.ziggo.nl) joined #highaltitude.
[12:28] <TimZaman> Oh hi
[12:30] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 264 seconds
[12:30] daveake_ (daveake@daveake.plus.com) left #highaltitude.
[12:33] <fsphil> afternoon TimZaman
[12:34] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[12:37] <TimZaman> fsphil: hello.
[12:38] <TimZaman> i just ordered a 9kub cilinder with 5kub of helium, including everything for E70
[12:38] <TimZaman> the guy said that the "season was done" and had a lot of helium left
[12:39] <fsphil> oh sweet
[12:39] <TimZaman> and got the EPS for the payload.. going to make my wirecutter & payload in a bit
[12:39] <TimZaman> also, advice
[12:39] <TimZaman> i would like a redundant system
[12:39] <TimZaman> how would you use two frequencies
[12:39] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 245 seconds
[12:39] <TimZaman> same antenna?
[12:39] <TimZaman> another?
[12:39] <TimZaman> how?
[12:39] <TimZaman> i know jcoxon did it before
[12:39] <fsphil> on project cirrus we had an antenna both on the bottom and top
[12:39] <TimZaman> Top!?
[12:39] <fsphil> yea
[12:39] <TimZaman> Mad
[12:40] <fsphil> well technically it might be better.. it won't get landed on :)
[12:40] <TimZaman> how did that work?
[12:40] <fsphil> it worked well.. they where not quarter waves though, where dipoles
[12:40] <fsphil> http://www.iw5edi.com/ham-radio/?the-vertical-bazooka-antenna,18
[12:40] <TimZaman> without a ground?
[12:41] <fsphil> the shield on the coax was pulled back over the coax
[12:41] <fsphil> dipoles don't need a ground
[12:41] <TimZaman> yeah i know but you lose power to the heavens
[12:41] <fsphil> (waits to be corrected... ;)
[12:41] <TimZaman> so - how did it work?
[12:42] <fsphil> we had no problem tracking it
[12:42] <TimZaman> hm
[12:42] <TimZaman> and why did you use two radios?
[12:42] <fsphil> it was the 50 baud payload on the top antenna
[12:42] <fsphil> hadie was a secondary payload on project cirrus
[12:42] <fsphil> two computers, two ntx2s
[12:42] <fsphil> they shared the same gps though
[12:43] <TimZaman> okay
[12:43] <TimZaman> why
[12:43] <fsphil> I didn't have time to get another :)
[12:43] <TimZaman> why 2 payloads
[12:44] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[12:44] <fsphil> They where going to fly one, I suggested I build a second to try the live images thing - they agreed as it would also provide a backup incase theirs broke
[12:44] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Read error: Connection reset by peer
[12:44] <TimZaman> unless the GPS broke :)
[12:45] <fsphil> that was a weak link yea :)
[12:45] <fsphil> as it turned out, my payload broke on landing
[12:45] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[12:48] <TimZaman> aww
[12:49] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 258 seconds
[12:54] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[12:57] fsphil-laptop (~phil@2001:8b0:34:1:219:d2ff:fe09:a6b9) joined #highaltitude.
[12:57] MoALTz (~no@host-92-18-2-240.as13285.net) joined #highaltitude.
[12:58] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 240 seconds
[13:03] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[13:04] shipit (~shipit@c-67-180-23-104.hsd1.ca.comcast.net) left irc: Remote host closed the connection
[13:08] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 264 seconds
[13:08] Dan-K2VOL (~Dan-K2VOL@69.64.6.70) joined #highaltitude.
[13:10] wolfspraul (~wolfsprau@221.220.186.233) left irc: Ping timeout: 260 seconds
[13:11] wolfspraul (~wolfsprau@221.220.186.187) joined #highaltitude.
[13:13] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[13:15] m1x10 (~mixio@ppp046177007098.dsl.hol.gr) joined #highaltitude.
[13:17] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 264 seconds
[13:22] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[13:23] <TimZaman> fsphil sometimes my checksum gives 3 chars $$PD4TA,208,15:23:15,52.01022,4.36054,1*159
[13:24] <fsphil-laptop> are you sure that's a hexadecimal value?
[13:24] <TimZaman> No
[13:24] <fsphil-laptop> ah
[13:24] <TimZaman> but i checked with the raw log
[13:24] <TimZaman> and others seemed to use the same?
[13:24] <TimZaman> for instance, would this be correct: $$PD4TA,216,15:24:13,52.01022,4.36046,1*73E9
[13:25] <fsphil-laptop> aah, you're not padding
[13:25] <fsphil-laptop> are you using fprint?
[13:25] <TimZaman> No
[13:25] <TimZaman> so just add 1 zero?
[13:25] <TimZaman> if 3 chars?
[13:25] <fsphil-laptop> you might also get 2 or 1 digits :)
[13:25] <TimZaman> rly
[13:26] <TimZaman> anyway, so pad it with zeros?
[13:26] <fsphil-laptop> what function are you using to print the number?
[13:26] <fsphil-laptop> indeedy, padding is the answer. with printf I'd use %04X
[13:26] <TimZaman> ehm just simple echo's
[13:26] <fsphil-laptop> aah right, you're using bash?
[13:26] <TimZaman> confirmed
[13:26] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 260 seconds
[13:27] <TimZaman> SENTENCE="\$\$PD4TA,"$NR$COM$TIME$COM$LAT$COM$LON$COM$ALT
[13:27] <TimZaman> CHECKSUM=`java CRC16CCITT $SENTENCE`
[13:27] <TimZaman> SENTENCE=$SENTENCE"*"$CHECKSUM
[13:27] <TimZaman> so its a string, but i guess printf handles that fine too with padding?
[13:28] <fsphil-laptop> %04X takes an integer value
[13:28] <fsphil-laptop> but I believe there is a way to pad strings too
[13:28] <fsphil-laptop> that's the C printf, bash might have one too
[13:29] <fsphil-laptop> oooh it does
[13:29] Dan-K2VOL (Dan-K2VOL@69.64.6.70) left #highaltitude.
[13:29] <fsphil-laptop> $ printf "%04X" 1234
[13:29] <fsphil-laptop> returns 04D2
[13:30] <TimZaman> yeah thats for numbers
[13:30] <fsphil-laptop> the value returned by your java program is a number
[13:30] <TimZaman> $ printf "%04X" FD76
[13:30] <TimZaman> bash: printf: FD76: invalid number
[13:30] <TimZaman> Negatory
[13:30] <TimZaman> f.e. $$PD4TA,235,15:26:36,52.01021,4.36045,1*D3D2
[13:30] <fsphil-laptop> put 0x before the hex number
[13:31] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[13:31] <fsphil-laptop> $ printf "%04X" 0xFD78
[13:31] <TimZaman> confirmed
[13:31] <TimZaman> so it needs zeros first?
[13:31] <TimZaman> f.e. 159 -> 0159
[13:32] <fsphil-laptop> yea .. though that printf command will do it all
[13:32] <TimZaman> i see
[13:32] <TimZaman> got it working already
[13:33] <TimZaman> thanks
[13:34] <fsphil-laptop> I think this might be the first bash powered payload
[13:35] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 258 seconds
[13:36] <TimZaman> Well it seems to work great
[13:36] <TimZaman> i had to make something custom because of the "GPSACP" info it gives
[13:37] <TimZaman> What was really great is making the pythonscript the telitgm862 makes. i had to convert coordinates with using integers only. it didnt support floats or anything with any precision
[13:37] <TimZaman> Also, the FTDI's are rated from 300baud to 3M baud. though i managed to get it to 200 baud working fine minimum
[13:38] <fsphil-laptop> at least it runs at 300
[13:38] <fsphil-laptop> I'm surprised it does to be honest
[13:38] <TimZaman> what was the antennagroundwirelength minimum again for the ntx2 434650
[13:38] <TimZaman> 17cm?
[13:38] <TimZaman> radius
[13:38] <TimZaman> fsphil it runes awesome at 200baud
[13:39] <TimZaman> no errors at all
[13:39] <fsphil-laptop> 16.4cm for the main element, the radials can be the same or longer
[13:39] <TimZaman> ,GPSACP:,133601.000,5200.6080N,00421.6285E,2.0,7.7,3,276.94,0.25,0.13,290811,05 $$PD4TA,27,15:36:01,52.01013,4.36047,2*0113
[13:39] <TimZaman> $$PD4TA,27,15:36:01,52.01013,4.36047,2*0113
[13:39] <TimZaman> 0113 is correct, right?
[13:39] <TimZaman> i could make a round payload. though it'd probably be spinning
[13:40] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[13:40] <fsphil-laptop> put wings on it :)
[13:40] <TimZaman> maybe a slanted waterdrop-like shape?
[13:41] <fsphil-laptop> some air resistance might be good though, something too smooth could drop incredibly fast
[13:44] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 260 seconds
[13:45] <fsphil-laptop> TimZaman, checksum for that is B77B
[13:45] <fsphil-laptop> aah, you're including the $$'s
[13:45] <fsphil-laptop> the checksum is calculated from the PD4TA
[13:49] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[13:49] NigelMoby (~nigel@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) joined #highaltitude.
[13:51] <NigelMoby> Afternoon
[13:51] <TimZaman> fsphil ty didnt know that
[13:51] <fsphil-laptop> hollo der
[13:52] SamSilver__ (2985f435@gateway/web/freenode/ip.41.133.244.53) left irc: Quit: Page closed
[13:53] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 260 seconds
[13:58] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[13:59] smealum (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[14:02] SamSilver (2985f435@gateway/web/freenode/ip.41.133.244.53) joined #highaltitude.
[14:03] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 258 seconds
[14:04] smealum (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 240 seconds
[14:09] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[14:13] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 252 seconds
[14:18] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[14:19] imrcly (~tim@74-128-123-149.dhcp.insightbb.com) joined #highaltitude.
[14:23] smea (~smealum@85-171-203-85.rev.numericable.fr) left irc: Ping timeout: 276 seconds
[14:27] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[14:31] GW8RAK (~chatzilla@host-78-147-72-173.as13285.net) joined #highaltitude.
[14:37] Jasperw (~jasperw@thingy.pointless.net) joined #highaltitude.
[14:40] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) left irc: Excess Flood
[14:40] m1x10 (~mixio@ppp046177007098.dsl.hol.gr) left irc:
[14:44] LazyLeopard (~irc-clien@chocky.demon.co.uk) left irc: Quit: Bye
[14:44] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) joined #highaltitude.
[14:48] GW8RAK (~chatzilla@host-78-147-72-173.as13285.net) left irc: Ping timeout: 240 seconds
[14:51] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) left irc: Excess Flood
[14:55] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) joined #highaltitude.
[14:59] SamSilver (2985f435@gateway/web/freenode/ip.41.133.244.53) left irc: Ping timeout: 252 seconds
[15:07] RJG_ (5228b3ab@gateway/web/freenode/ip.82.40.179.171) left irc: Quit: Page closed
[15:20] jcoxon (~jcoxon@185.171.pn.adsl.brightview.com) joined #highaltitude.
[15:21] <jcoxon> afternoon all
[15:23] <Upu> Afternoon
[15:30] GW8RAK (~chatzilla@host-78-150-208-17.as13285.net) joined #highaltitude.
[15:32] jcoxon (~jcoxon@185.171.pn.adsl.brightview.com) left irc: Quit: Leaving
[15:34] number10 (56813a80@gateway/web/freenode/ip.86.129.58.128) left irc: Ping timeout: 252 seconds
[15:37] juxta (~juxta@ppp203-122-193-94.static.internode.on.net) left irc: Ping timeout: 246 seconds
[15:43] NigelMoby (~nigel@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) left irc: Ping timeout: 245 seconds
[15:45] NigelMoby (~nigel@89.193.217.183) joined #highaltitude.
[15:45] <fsphil> getting nippy outside
[15:48] <Upu> its not warm
[15:50] NigelMoby (~nigel@89.193.217.183) left irc: Ping timeout: 258 seconds
[15:56] jcoxon (~jcoxon@185.171.pn.adsl.brightview.com) joined #highaltitude.
[16:10] Jasperw (~jasperw@thingy.pointless.net) left irc: Remote host closed the connection
[16:11] number10 (568139f9@gateway/web/freenode/ip.86.129.57.249) joined #highaltitude.
[16:16] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude.
[16:28] <griffonbot> Received email: Nick Leaton "Re: [UKHAS] UKHAS Conference 2011"
[16:42] jasonb (~jasonb@adsl-66-124-73-250.dsl.sntc01.pacbell.net) left irc: Ping timeout: 276 seconds
[16:52] Jasperw (~jasperw@thingy.pointless.net) joined #highaltitude.
[16:53] <fsphil> the conference reserve list may be bigger than the attendance list now
[17:00] <Hibby> bigger venuue?
[17:00] <Hibby> the macdonalds down the road?
[17:02] fsphil-laptop (~phil@2001:8b0:34:1:219:d2ff:fe09:a6b9) left irc: Ping timeout: 260 seconds
[17:02] fsphil (~phil@2001:8b0:34:1:21f:c6ff:fe44:b25b) left irc: Ping timeout: 260 seconds
[17:08] fsphil (~phil@2001:8b0:34:1:21f:c6ff:fe44:b25b) joined #highaltitude.
[17:08] fsphil-laptop (~phil@2001:8b0:34:1:219:d2ff:fe09:a6b9) joined #highaltitude.
[17:11] chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) joined #highaltitude.
[17:13] <TimZaman> payload finished
[17:14] <TimZaman> styrofoam party
[17:14] <TimZaman> foamcutters are awesome
[17:14] <fsphil> heh, there's bit of that stuff everywhere here
[17:15] <TimZaman> i didnt make a mess at all
[17:15] <TimZaman> everything evaporated
[17:15] <TimZaman> also, negative on the redundant system
[17:16] <TimZaman> too much work
[17:18] GW8RAK (~chatzilla@host-78-150-208-17.as13285.net) left irc: Ping timeout: 252 seconds
[17:19] GW8RAK (~chatzilla@host-2-99-25-190.as13285.net) joined #highaltitude.
[17:22] SamSilver (2985f435@gateway/web/freenode/ip.41.133.244.53) joined #highaltitude.
[17:39] <W0OTM> Next flight test of the BallooMerang BM-1 vehicle will happen tonight
[17:39] <W0OTM> first time we will activate the AutoPilot system
[17:40] jcoxon (~jcoxon@185.171.pn.adsl.brightview.com) left irc: Quit: This computer has gone to sleep
[17:42] <fsphil-laptop> will keep an eye out if I'm still awake
[17:51] <TimZaman> W0OTM: what time, etc?
[17:51] <W0OTM> I think we will get the first flight in at about 5:30 CST
[17:54] Jasperw (~jasperw@thingy.pointless.net) left irc: Read error: Connection reset by peer
[17:56] natrium42 (~xela@128.12.119.225) joined #highaltitude.
[17:57] Jasperw (~jasperw@thingy.pointless.net) joined #highaltitude.
[17:58] jcoxon (~jcoxon@185.171.pn.adsl.brightview.com) joined #highaltitude.
[17:58] <TimZaman> very cool
[17:59] <TimZaman> fsphil : they say the beagleboard goes from 0-80 degrees. though, they said the same about the gumstix's.
[17:59] <TimZaman> what do you think?
[17:59] <TimZaman> rubbish?
[17:59] <jcoxon> TimZaman, it'll generate quite a bit of its own heat
[17:59] <jcoxon> that might be more of the issue
[17:59] <jcoxon> it getting too hot
[17:59] <TimZaman> Also, i've gone through the list, and most things were operating at -40C, expect for for instance the ethernet, dvi, but also the crystal
[17:59] <fsphil-laptop> ^^ what jcoxon said :)
[18:00] Dan-K2VOL (~Adium@74-143-44-42.static.insightbb.com) joined #highaltitude.
[18:00] <TimZaman> jcoxon: because it sits in a box with little airmass to transfer the heat?
[18:00] <jcoxon> exactly
[18:00] jasonb (~jasonb@12.201.129.162) joined #highaltitude.
[18:00] MrCraig (~craig@host109-154-225-50.range109-154.btcentralplus.com) joined #highaltitude.
[18:00] <TimZaman> yeah thats what i thought
[18:00] <jcoxon> TimZaman, i've flown gumstixs with no issues
[18:01] <TimZaman> it was late lastnight i almost got stressed about that nonsense
[18:01] <TimZaman> the canons i used last time did not get below 10 degrees (from exif info)
[18:02] <TimZaman> whats the estimator/simulation website again
[18:02] <TimZaman> jcoxon: did the gumstix get hot?
[18:03] <fsphil-laptop> http://habhub.org/predict/
[18:03] <jcoxon> not dangerously
[18:03] <Dan-K2VOL> TimZaman However do be aware that the solar radiation plays a big part in keeping the sealed boxes warm
[18:05] <TimZaman> what do you mean
[18:05] <Dan-K2VOL> at night things will cool off, though outside air temperature will remain fairly constant. People have flown bare circuits wrapped in bubble-wrap, and in the daytime it's well above water's freezing point, but at sunset it drops extremely quickly, approaching the ambient air temperature
[18:06] <TimZaman> yup
[18:06] <Dan-K2VOL> if you're only going to fly in the daytime, you can use less insulation by absorbing more infrared
[18:06] <Hibby> i appear to have become prime bed material for Dan-K2VOL's cat...
[18:07] <Dan-K2VOL> hahaha that cat has poor judge of character too
[18:07] <Dan-K2VOL> sitting on such a lap!
[18:08] <Hibby> you saying im cold and bony?!
[18:08] <Hibby> she makes a great nook holder when combined with my stomach
[18:08] <Dan-K2VOL> oh good idea, I should try that
[18:08] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) left irc: Excess Flood
[18:08] <Dan-K2VOL> ipad would probably make her cross though
[18:10] <Hibby> possibly
[18:13] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) joined #highaltitude.
[18:14] <Hibby> shes moved to make it more difficult now. evidently not a leo laporte fan.
[18:15] <Dan-K2VOL> heh, he can be annoying
[18:15] <Hibby> lolz gender.
[18:17] <Dan-K2VOL> jcoxon we had an interesting balloon activity over the weekend, did Hibby mention?
[18:18] <Hibby> lol
[18:18] <jcoxon> umm no
[18:19] <Dan-K2VOL> we used a weather balloon to hoist a giant net filled with a grid of party balloons, one LED in each, as a scrolling sign in the sky over a festival. a project of one of the other hackerspace fellows here at LVL1.
[18:20] <jcoxon> wow
[18:20] <jcoxon> thats awesome
[18:20] <Dan-K2VOL> The interesting part was that we had the weather balloon on the ground long enough after, and didn't care much about it's durability that we were able to play with the sonic properties of the gas bubble
[18:22] <Dan-K2VOL> found that shouting (very loudly and sharply) directly into the side of the balloon produced internal reflections of the sound lasting for up to 3 seconds after the audio shout
[18:22] <Dan-K2VOL> audible as echos coming out of the balloon to people standing around the balloon
[18:23] <Dan-K2VOL> may have been 1 to 2 seconds, but you could clearly hear the echo 4 or 5 times
[18:23] <jcoxon> very interesting
[18:23] <Hibby> and it worked with an impulse knock on the balloon too
[18:23] <Dan-K2VOL> definitely warrants further exploration. I recommend shouting at your balloons when you have the chance
[18:24] <SpeedEvil> Odd
[18:24] <fsphil-laptop> adds to that whole mad scientist look
[18:24] Action: SpeedEvil wonders at spherical harmonics.
[18:24] <Dan-K2VOL> it was a 600g kaymont balloon with about 9lbs of lift
[18:24] <Hibby> next step would be to develop some way to control gas flow at the neck so.it.can be tested at different volumes
[18:25] <Hibby> we reckon internal reflection, similar to fibre optics etc.
[18:25] <jcoxon> bbl
[18:25] jcoxon (~jcoxon@185.171.pn.adsl.brightview.com) left irc: Quit: Leaving
[18:26] <SpeedEvil> Hibby: And does it happen with and without He
[18:26] <Hibby> thats a whole other experiment waiting to be done
[18:26] <Dan-K2VOL> SpeedEvil we didn't try, but we have a duplicate balloon that we can fill with air to try.
[18:26] <Dan-K2VOL> good suggestion
[18:27] <Hibby> whats the speed of sound in helium?
[18:27] <Dan-K2VOL> I suppose it's possible that it's a surface wave on the rubber
[18:27] <SpeedEvil> I could argue that it is some phenomenon based on spherical harmonics in the balloon, and the neck precessing them into a point again
[18:27] <SpeedEvil> Or something.
[18:27] <SpeedEvil> Hibby: About a kilometer and a bit a second
[18:27] <SpeedEvil> hangon
[18:28] <SpeedEvil> sqrt(32/2) or so
[18:28] <SpeedEvil> so 4* 340
[18:28] <SpeedEvil> yeah.
[18:29] <Hibby> so, intuitively, the echo cycle would be longer with air
[18:29] <Hibby> and the reflections of the wave must be very efficient
[18:29] <SpeedEvil> Speed of sound in rubber is going to be high too.
[18:29] <Hibby> given the echos we heard were distinct
[18:29] <SpeedEvil> Speed of surface waves I'm not sure about
[18:29] <SpeedEvil> could be quite low
[18:30] <SpeedEvil> If the waves propagate out evenly over a sphere, they will join forces again when they hit the opposite pole.
[18:31] <Dan-K2VOL> either way, it might be usable to derive inflated volume from
[18:31] <SpeedEvil> At this point, the amplitude of the vibration will be enormously larger than while propagating over the sphere, so coupling to the air will be better.
[18:31] <Dan-K2VOL> hmm ah you should hear it louder at that point
[18:32] <Hibby> hmm. its nowhere near a constant spherical shape, however
[18:32] <Dan-K2VOL> I've also heard that you can use such balloons as a lens to focus sound
[18:32] <SpeedEvil> So if the transmission of surface waves is ~1-5m/s - that might work.
[18:32] <SpeedEvil> Yeah - that works.
[18:32] Jasperw (~jasperw@thingy.pointless.net) left irc: Remote host closed the connection
[18:32] <SpeedEvil> 'simply' as a differing refractive index
[18:32] Jasperw (~jasperw@thingy.pointless.net) joined #highaltitude.
[18:32] <SpeedEvil> I think He makes a negative lens though
[18:34] <SpeedEvil> Neat effect - it's one of the randomnesses that you never think of in physics that are explainable once you think of them for a bit.
[18:34] <Dan-K2VOL> :-)
[18:35] <Dan-K2VOL> should be able to measure the size of the sphere with the echo though wouldn't you
[18:35] <Dan-K2VOL> even as a surface wave
[18:35] <SpeedEvil> Umm...
[18:35] <Dan-K2VOL> roughly
[18:35] <SpeedEvil> It's strongly influenced by tension
[18:35] <Dan-K2VOL> interesting
[18:36] <Dan-K2VOL> perhaps some empirical measurements are in order
[18:36] <SpeedEvil> For a given diameter, the velocity should be proportional to the square root of the internal pressure.
[18:36] <Dan-K2VOL> it's too bad it costs so much to try
[18:36] <Hibby> i love a good empire
[18:36] <SpeedEvil> Or something like that.
[18:36] <SpeedEvil> It should work fine with party balloons.
[18:36] <Hibby> dan, what about experimenting wirh that latex roll downstairs?
[18:36] <SpeedEvil> Of course the delay will be a tiny fraction
[18:37] <Dan-K2VOL> oh good point, probably just have to use a recorder to measure the timing
[18:37] <Hibby> at least for surface wave stuff
[18:37] <SpeedEvil> you could do experiments on bits of burst balloon - at least a bit
[18:37] <Dan-K2VOL> ah it's mylar, so it's very strong. but we have another identical balloon that was used for an indoor party, i wouldn't fly it, but it's gas-tight still
[18:38] <Dan-K2VOL> could try it with air tonight
[18:38] <Dan-K2VOL> or today if you want
[18:39] <Hibby> if we could wor out a filling/holding method that was better
[18:39] <Hibby> one way valve and a plug
[18:40] <Dan-K2VOL> for air or helium?
[18:41] <Hibby> for insertion of gas to a balloon... the weather forecasters cant be doin it as ghetto as us....
[18:44] Dutch-Mill-mob (~androirc@116-122-045-062.dynamic.caiway.nl) joined #highaltitude.
[18:45] <Hibby> make the inflation/sealing of the balloon easier, so that we dont have to worry about how to untape it to change thw volume for futher experiment...
[18:54] <Dan-K2VOL> yeah, I think the actual weather balloon nozzles have a valve in them that shuts off when they reach the desired lift (it lifts off the filler)
[18:55] NigeyS (EcEnTiAl@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) joined #highaltitude.
[18:56] <Dan-K2VOL> can't find the NOAA one but here's some interesting pics of a weather balloon launching station somewhere: http://en.wikipedia.org/wiki/User:CambridgeBayWeather/Weather
[19:06] Dutch-Mill-mob (~androirc@116-122-045-062.dynamic.caiway.nl) left irc: Quit: AndroIRC - Android IRC Client ( http://www.androirc.com )
[19:07] NigelMoby (~nigel@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) joined #highaltitude.
[19:17] <Hibby> that looks much easier!
[19:18] daveake_ (~daveake@daveake.plus.com) joined #highaltitude.
[19:23] ejcweb (~chatzilla@84-75-163-139.dclient.hispeed.ch) joined #highaltitude.
[19:38] Dutch-Mill (3e2d7a74@gateway/web/freenode/ip.62.45.122.116) joined #highaltitude.
[19:45] Dutch-Mill (3e2d7a74@gateway/web/freenode/ip.62.45.122.116) left irc: Quit: Page closed
[19:58] natrium42 (~xela@128.12.119.225) left irc: Ping timeout: 250 seconds
[20:00] natrium42 (~xela@128.12.119.225) joined #highaltitude.
[20:04] m1x10 (~mixio@ppp046177007098.dsl.hol.gr) joined #highaltitude.
[20:05] natrium42 (~xela@128.12.119.225) left irc: Ping timeout: 260 seconds
[20:06] GW8RAK (~chatzilla@host-2-99-25-190.as13285.net) left irc: Quit: ChatZilla 0.9.87 [Firefox 6.0/20110811165603]
[20:22] daveake_ (~daveake@daveake.plus.com) left irc: Read error: Connection reset by peer
[20:25] <m1x10> Hi all
[20:31] Hiena (~boreger@81.93.195.181.datatrans.hu) left irc: Remote host closed the connection
[20:49] natrium42 (~xela@128.12.119.225) joined #highaltitude.
[20:53] chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) left irc: Quit: Leaving
[20:57] <fsphil-laptop> hullo m1x10
[20:58] NigeyS (EcEnTiAl@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) left irc: Quit: Leaving
[20:59] Dan-K2VOL (~Adium@74-143-44-42.static.insightbb.com) left irc: Quit: Leaving.
[21:02] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] UKHAS Conference 2011"
[21:11] number10 (568139f9@gateway/web/freenode/ip.86.129.57.249) left #highaltitude.
[21:12] earthshine (~Mike@cpc2-orpi1-0-0-cust69.2-3.cable.virginmedia.com) left irc: Quit: earthshine
[21:28] <m1x10> hey fsphil
[21:28] <m1x10> hows going?
[21:28] <fsphil-laptop> not too bad here, some more code hacking. you?
[21:28] <m1x10> good
[21:29] <m1x10> my bro gave me money to buy another A480
[21:29] <m1x10> and im somwhow happy :)
[21:29] <fsphil-laptop> be careful with it :D
[21:29] <m1x10> ooo
[21:30] <m1x10> Now I need to find money, about 145euro to buy the H1600g and the 1m chute
[21:31] <fsphil-laptop> sponsorship :)
[21:32] <m1x10> fsphil
[21:32] <m1x10> http://www.ebay.co.uk/itm/Canon-PowerShot-A480-Digital-Camera-/280726444915?_trksid=p4340.m263&_trkparms=algo%3DSIC%26its%3DI%252BC%26itu%3DUCI%252BUA%252BP%252BFICS%252BUFI%252BIIUM%26otn%3D4%26pmod%3D390342339936%26ps%3D63%26clkid%3D2375720399089504356
[21:32] <m1x10> yes, I have 2 persons now that want to sponsor. One relative for the helium and one stranger for balloon and chute.
[21:33] <m1x10> but i dont really know what that stranger will ask for
[21:33] <fsphil-laptop> natrium42, would you mind if I borrows the spacenear.us layout and icons? :)
[21:39] <TimZaman> natrium42: what exactly were your experiences with the telit gm862
[21:40] <TimZaman> m1x10: just work two days and you got your balloon - even in greece
[21:40] <TimZaman> ordered two 1600g's today
[21:41] <TimZaman> going to crush some records.
[21:41] <fsphil-laptop> I suspect the >40km area is going to get crowded soon :)
[21:41] <m1x10> TimZaman: currently my city got 35% unemployment and is expected to reach much more in the winter
[21:41] <m1x10> Its difficult to find a job here
[21:42] <TimZaman> just work for minimum wage. there is always a job, altough you might not like it :)
[21:44] <TimZaman> fsphil - just finished the entire payload insides.
[21:44] <TimZaman> i added a supercapacitor
[21:45] <TimZaman> i made room for it in the pcb though hadnt installed, 1F (5v5)
[21:45] <TimZaman> so the question
[21:45] <fsphil-laptop> what for?
[21:45] <TimZaman> can you kill circuits by supplying LESS voltage
[21:45] <fsphil-laptop> I don't believe so
[21:45] <fsphil-laptop> at least, I've never done it
[21:45] <TimZaman> what for - when i flip a switch from sourches for instance, power drops for a flick of a second
[21:45] <fsphil-laptop> maybe something mechanical
[21:46] <fsphil-laptop> my uart camera fails to start if there is a big capacitor on the power rail
[21:46] <TimZaman> really? that makes no sense?
[21:47] <fsphil-laptop> none at all
[21:48] <TimZaman> should be the other way around
[21:49] <TimZaman> needs a lot of current at startup so it needs a low ESR capacitor
[21:49] <fsphil-laptop> I can't explain it
[21:50] <fsphil-laptop> just bad code on the camera I guess
[21:50] <TimZaman> why did you want a cap?
[21:50] <fsphil-laptop> it's good practice
[21:51] <fsphil-laptop> vregs usually always need a capacitor on output
[21:51] <TimZaman> not a big one
[21:51] <TimZaman> usually a sepecific one to get the ripple out, righjt
[21:52] <fsphil-laptop> yea
[21:52] <fsphil-laptop> I noticed the voltage would change and affect the ntx2 frequency too
[21:52] <fsphil-laptop> when the gps module was connected
[21:52] <fsphil-laptop> was trying to smooth that out
[21:55] <TimZaman> yup
[21:55] <TimZaman> i had so much problems with interrupts from things as newsoftwareserial or servo's. then your rtty is t-o-t-a-l-ly f*ed up
[21:55] lekernel (~lekernel@f052069236.adsl.alicedsl.de) joined #highaltitude.
[21:55] <TimZaman> took me ages to figure that out
[21:56] <fsphil-laptop> how did you in the end?
[21:56] <TimZaman> using two arduino's
[21:56] <TimZaman> one for the servos, one for the rest
[21:56] <fsphil-laptop> nice
[21:56] <TimZaman> and i figured newsoftwareserial sucked so i took the old one
[21:56] <TimZaman> until i read somewhere that its great "because it worked with interrupts"
[21:56] <fsphil-laptop> I was considering two separate vregs, one for camera+gps, the other for the avr and ntx2
[21:56] <TimZaman> then i slapped myself
[21:57] <fsphil-laptop> what I don't understand is that when the board was finished and working, the frequency hops disappeared
[21:57] <fsphil-laptop> might be a problem with the breadboard to be honest
[21:58] <TimZaman> yeah it sounds weird, i would say there is no point making 2 vregs
[21:59] <TimZaman> sparkfun has one that is really very good
[21:59] <TimZaman> up to 6A, and v-e-r-y efficient. almost doesnt get warm. http://www.sparkfun.com/products/9275
[22:00] <fsphil-laptop> nice
[22:01] <fsphil-laptop> that would be better for the 869mhz modules that do 500mw
[22:04] <TimZaman> payload now in full testing mode
[22:04] <TimZaman> got two 6Ah (4v) lipo's
[22:05] <TimZaman> running the battery monitor, gprs/gps monitor, webcam, ssdv2rtty(ftdi)
[22:05] <TimZaman> and remote desktop
[22:05] <TimZaman> and gps just got a lock
[22:05] MrCraig (craig@host109-154-225-50.range109-154.btcentralplus.com) left #highaltitude.
[22:05] <fsphil-laptop> remote desktop on a payload. love if that worked from the ground :)
[22:07] shipit (~shipit@c-67-180-23-104.hsd1.ca.comcast.net) joined #highaltitude.
[22:07] <TimZaman> hahahah!
[22:07] <TimZaman> wouldnt it?
[22:07] <fsphil-laptop> with a reliable enough link yea :)
[22:08] <fsphil-laptop> do a bit of text editing...
[22:08] <TimZaman> china's got enough WIFI boosters
[22:08] <TimZaman> i did find some protocols for ssh over serial
[22:08] <TimZaman> right im out for sleepings
[22:09] <TimZaman> bb
[22:09] <fsphil-laptop> laters
[22:09] TimZaman (~chatzilla@535602CA.cm-6-7a.dynamic.ziggo.nl) left irc: Quit: ChatZilla 0.9.87 [Firefox 6.0/20110812234425]
[22:23] ejcweb (~chatzilla@84-75-163-139.dclient.hispeed.ch) left irc: Quit: ChatZilla 0.9.87 [Firefox 5.0.1/20110707182747]
[22:25] jevin (~jevin@ec2-174-129-222-35.compute-1.amazonaws.com) left irc: Excess Flood
[22:26] LazyLeopard (~irc-clien@chocky.demon.co.uk) left irc: Quit: Bye
[22:29] jevin (~jevin@napalm.jevinskie.com) joined #highaltitude.
[22:37] Gillerire (~Jamie@182-239-173-236.ip.adam.com.au) joined #highaltitude.
[22:53] m1x10 (~mixio@ppp046177007098.dsl.hol.gr) left irc:
[23:04] MoALTz (~no@host-92-18-2-240.as13285.net) left irc: Read error: Connection reset by peer
[23:05] fsphil-laptop (~phil@2001:8b0:34:1:219:d2ff:fe09:a6b9) left irc: Quit: zedzedzed
[23:05] MoALTz (~no@host-92-18-2-240.as13285.net) joined #highaltitude.
[23:06] shipit (~shipit@c-67-180-23-104.hsd1.ca.comcast.net) left irc: Remote host closed the connection
[23:06] jevin (~jevin@napalm.jevinskie.com) left irc: Remote host closed the connection
[23:10] Gillerire (~Jamie@182-239-173-236.ip.adam.com.au) left irc: Quit: Quit
[23:19] jevin (~jevin@napalm.jevinskie.com) joined #highaltitude.
[23:42] Laurenceb_ (~Laurence@host86-177-56-66.range86-177.btcentralplus.com) left irc: Ping timeout: 240 seconds
[23:56] shipit (~shipit@204-15-2-155-static.ipnetworksinc.net) joined #highaltitude.
[00:00] --- Tue Aug 30 2011