highaltitude.log.20120129

[00:02] aetaric (~aetaric@74-130-83-237.dhcp.insightbb.com) left irc: Remote host closed the connection
[00:03] NigelMoby (~nigel@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) left irc: Remote host closed the connection
[00:03] aetaric (~aetaric@74-130-83-237.dhcp.insightbb.com) joined #highaltitude.
[00:03] daveake_ (~daveake@daveake.plus.com) joined #highaltitude.
[00:08] tjayh913 (~chatzilla@74-222-209-128.dyn.everestkc.net) left irc: Quit: ChatZilla 0.9.88 [Firefox 9.0.1/20111220165912]
[00:14] <daveake_> Next weekend looking better than this one! http://habhub.org/predict/#!/uuid=3d1deb1fd5f9cdd269ccc9d103c2ffc7d1d8a281
[00:14] <daveake_> Bit close to Gatwick though!
[00:15] <daveake_> I'm sure that could be sorted with more altitude = http://habhub.org/predict/#!/uuid=5c07a892ca51ed51465aa0e20d72167c38cfaaf7
[00:22] <fsphil-laptop> still close to the wet stuff
[00:23] <daveake_> Well not as close as tomorrow :D
[00:23] <daveake_> Anyway, we'll see what the prediction says later during the week. I've got a choice of Saturday or Sunday
[00:25] <fsphil-laptop> the winds seem to be a bit unpredictable at the moment
[00:25] <daveake_> yeah
[00:25] <daveake_> But some of us manage to hit the water even with predictable winds :D
[00:25] <fsphil-laptop> ahem
[00:26] <daveake_> Yes I did mean both of us :)
[00:26] <fsphil-laptop> oh a pony...
[00:32] <fsphil-laptop> been trying to find a bug in this code all day, think it's starting to mock me. it's working now and I don't know why
[00:32] <daveake_> If (Saturday) mess_up_phils_mind();
[00:34] <daveake_> When I were a lad I built a receiver for the Rugby time transmission. Had all sorts of trouble then all of a sudden it started working perfectly and stayed that way.
[00:34] <fsphil-laptop> lol
[00:34] <daveake_> It was late in the evening and my parents had switched off the TV
[00:35] <daveake_> It was just picking up interference from that
[00:36] <fsphil-laptop> I've a radio clock here, great idea
[00:40] <Lunar_Lander> oh I see that cuddy had GPS lock problems also?
[00:42] <daveake_> "Cuddy had X problem" works for a wide range of X.
[00:42] <Lunar_Lander> xD yea
[00:42] <daveake_> Lassen + small antenna + indoors
[00:42] <Lunar_Lander> yeah
[00:42] <daveake_> The Lassen gets a bad press but with a decent antenna, or small one + ground plane, outdoors it's fine.
[00:43] <Lunar_Lander> yea
[00:43] <daveake_> You only need 4 satellites, and a Lassen will get 8-12 during flight
[00:43] <Lunar_Lander> I still don't know what to really do, as I said I got Venus (with new FW) and gpsBee
[00:43] <Lunar_Lander> if I should buy more GPS
[00:44] <daveake_> So long as you know it works at altitude, don't worry about it
[00:44] <daveake_> Right, time for sleep.
[00:45] daveake_ (daveake@daveake.plus.com) left #highaltitude.
[00:45] <Lunar_Lander> yea
[00:45] <Lunar_Lander> fsphil-laptop: still on?
[00:46] <fsphil-laptop> yea though not for much longer
[00:46] <Lunar_Lander> ah
[00:46] <Lunar_Lander> yea I think I won't go on till 11 am either like yesterday
[00:46] <Lunar_Lander> xD
[00:49] Jasperw (~jasperw@2a01:348:82:0:223:5aff:fef5:cce) left irc: Quit: Leaving.
[00:50] <Lunar_Lander> well
[00:50] <Lunar_Lander> I started to read the TinyGPS description
[00:51] <Lunar_Lander> and it seems to have a special function to display the 3D position
[00:51] <Lunar_Lander> so this seems to be what is needed?
[00:51] <fsphil-laptop> not sure what that means
[00:54] <Lunar_Lander> one moment
[00:54] <Lunar_Lander> it says
[00:54] <Lunar_Lander> // retrieves +/- lat/long in 100000ths of a degree
[00:54] <Lunar_Lander> gps.get_position(&lat, &lon, &fix_age);
[00:56] Laurenceb_ (~Laurence@host86-179-87-64.range86-179.btcentralplus.com) left irc: Ping timeout: 276 seconds
[00:57] <fsphil-laptop> that'll be the 2D position
[00:57] <Lunar_Lander> yeah
[00:58] <Lunar_Lander> I am missing the altitude in that instructions
[00:58] <fsphil-laptop> there's another one for altitude
[00:58] <Lunar_Lander> ah
[00:58] <Lunar_Lander> float falt = gps.f_altitude(); // +/- altitude in meters
[01:05] <fsphil-laptop> time to sleep. nite!
[01:05] fsphil-laptop (~phil@2001:8b0:34:1:219:d2ff:fe09:a6b9) left irc: Quit: I'm doing science and I'm still alive!
[01:22] RKD (rkd@all.beesgo.bz) left #highaltitude.
[01:57] Lunar_Lander (~gd-fermi@p54A064A0.dip.t-dialin.net) left irc: Quit: Leaving.
[02:03] NigeyS (~Nigel@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) left irc: Read error: Connection reset by peer
[02:20] navrac_ (545c0e05@gateway/web/freenode/ip.84.92.14.5) left irc: Ping timeout: 245 seconds
[02:58] blownup (183ce685@gateway/web/freenode/ip.24.60.230.133) joined #highaltitude.
[03:00] blownup (183ce685@gateway/web/freenode/ip.24.60.230.133) left #highaltitude.
[03:03] benoxley (~benoxley@kryten.hexoc.com) left irc: Ping timeout: 260 seconds
[03:03] benoxley (~benoxley@kryten.hexoc.com) joined #highaltitude.
[03:07] griffonbot (~griffonbo@kraken.habhub.org) left irc: Quit: griffonbot
[03:07] griffonbot (~griffonbo@kraken.habhub.org) joined #highaltitude.
[03:07] Action: griffonbot is GriffonBot [http://github.com/ssb/griffonbot]
[03:07] Action: griffonbot is following: #ukhas #cusf #atlasballoon #projecthorus
[03:07] Action: griffonbot is tracking emails sent to ukhas@googlegroups.com
[03:26] Gnea (~gnea@unaffiliated/gnea) joined #highaltitude.
[03:30] Gnea (~gnea@unaffiliated/gnea) left irc: Read error: Connection reset by peer
[04:34] joph (~joph@p4FDED70C.dip.t-dialin.net) left irc: Ping timeout: 272 seconds
[04:34] joph_ (~joph@p4FDED0A1.dip.t-dialin.net) joined #highaltitude.
[04:34] Nick change: joph_ -> joph
[05:57] <natrium42> o/
[05:59] <SamSilver_> natrium42: seen any good outlet porn ?
[06:04] <natrium42> rofl
[06:08] <SamSilver_> the stats show all - http://redditlist.com/stats/outletporn
[06:20] Gnea (~gnea@unaffiliated/gnea) joined #highaltitude.
[06:47] MoALTz__ (~no@host-92-2-121-62.as43234.net) joined #highaltitude.
[06:48] MoALTz_ (~no@host-92-8-246-57.as43234.net) left irc: Ping timeout: 252 seconds
[07:00] DrLuke (~Im@p5B15F76E.dip.t-dialin.net) left irc: Ping timeout: 252 seconds
[07:06] DrLuke (~Im@p5B15C629.dip.t-dialin.net) joined #highaltitude.
[07:34] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) left irc: Ping timeout: 248 seconds
[07:36] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) joined #highaltitude.
[07:52] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) left irc: Ping timeout: 252 seconds
[07:54] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) joined #highaltitude.
[08:03] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) left irc: Ping timeout: 240 seconds
[08:05] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) joined #highaltitude.
[08:13] nosebleedkt (~nosebleed@ppp141237029227.dsl.hol.gr) joined #highaltitude.
[08:21] NickB1 (~NickB@d54C3B15F.access.telenet.be) joined #highaltitude.
[08:23] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) left irc: Ping timeout: 248 seconds
[08:25] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) joined #highaltitude.
[08:27] MoALTz__ (~no@host-92-2-121-62.as43234.net) left irc: Ping timeout: 272 seconds
[08:28] MoALTz__ (~no@host-92-2-121-62.as43234.net) joined #highaltitude.
[08:42] daveake_ (~daveake@daveake.plus.com) joined #highaltitude.
[08:42] CovBalloon (CovBalloon@cpc7-cove12-2-0-cust297.3-1.cable.virginmedia.com) joined #highaltitude.
[08:42] Nick change: daveake_ -> daveake
[08:44] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) left irc: Ping timeout: 248 seconds
[08:46] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) joined #highaltitude.
[08:46] <Upu> morning
[08:46] <Upu> ping Darkside
[08:46] <daveake> Morning
[08:46] <Darkside> hey Upu
[08:47] <Upu> yo
[08:47] <Upu> http://www.sparkfun.com/products/9131
[08:47] <Upu> + max-6
[08:47] CovBalloon (CovBalloon@cpc7-cove12-2-0-cust297.3-1.cable.virginmedia.com) left irc: Ping timeout: 240 seconds
[08:47] <Upu> thoughts
[08:47] <Darkside> should be fine in the air
[08:47] <Darkside> as long as it maintains lock when its on the ground, then that'd be fine
[08:47] <Upu> thats what I thought
[08:48] <Upu> and I can solder these unlike that antenova module
[08:48] <Darkside> heh
[08:48] <Upu> http://www.sparkfun.com/datasheets/GPS/JTI_Antenna-1575AT43A40_2006-09.pdf
[08:48] <Darkside> looking at it now
[08:49] <Darkside> should be doable
[08:49] <Darkside> we'll have to be more careful with the feed-line this time
[08:49] <Upu> I need to work out how to make a "line width should be designed to provide 50 ohms impedancematching characteristics"
[08:49] <Upu> read my mind
[08:49] <Darkside> theres a few ways to do it
[08:49] <Darkside> just google around
[08:49] <Upu> ok
[08:50] <Darkside> what you see on that datasheet is co-linear waveguide it hink
[08:50] <Upu> this should make a very very light payload
[08:50] <Upu> back in a sec
[08:50] <Darkside> yeah
[08:52] number10 (5686a761@gateway/web/freenode/ip.86.134.167.97) joined #highaltitude.
[09:10] <NickB1> Upu, you can use Saturn PCB Toolkit for the calculations
[09:11] <Upu> hye NickB1 thx
[09:11] <Upu> founds this http://chemandy.com/calculators/coplanar-waveguide-with-ground-calculator.htm
[09:11] <Upu> just trying to work out what Er of the seeedstudio boards is
[09:11] <Darkside> just use standard FR4 values
[09:13] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) left irc: Ping timeout: 260 seconds
[09:13] <NickB1> google says 4.2
[09:14] <Darkside> the annoying thing about those antennas is thats about 8-9mm of board real-estate you can't use for anything else
[09:14] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) joined #highaltitude.
[09:15] <Upu> true but on the plus side you can a) solder them b) the don't weigh anything
[09:15] <Darkside> yeah
[09:15] <Darkside> they're certainly worth a try
[09:15] <Upu> you can write lots of cool thinks on the board in that space like "this way up" and "Darksite sux"
[09:15] <daveake> lol
[09:15] <Upu> Darksite ?
[09:15] <Darkside> i'm sticking with the sarantels for the moment, mainly because i have 20 of them
[09:15] <Darkside> lol
[09:15] <daveake> that'sa good reason
[09:15] <Upu> I am for normal boards
[09:16] <Upu> but jcoxon got me thinking on how light can get get these
[09:16] <Darkside> yeah
[09:16] <Upu> powered it from a CR2032 :)
[09:16] <Darkside> nah dont to that
[09:16] <Darkside> dont do that
[09:16] <daveake> :)
[09:16] <Darkside> 1 AAA
[09:16] <Upu> that was a joke yeah thats the plan
[09:16] <daveake> Strip the cover and writing off the AAA
[09:16] <Darkside> with a boost converter
[09:16] <Upu> yup
[09:17] <Darkside> what about the transmitter?
[09:17] <Darkside> RFM22B?
[09:17] <daveake> But careful with the lipower circuit used by Sparkfun...
[09:17] <daveake> ... all the Rs that set the o/p voltage are 220k - 2M
[09:17] <Darkside> the NCP1400 based one or the TPS61200 one
[09:17] <Darkside> yes the TPS61200 one
[09:18] <Darkside> it has a UVLO set to 2.6V
[09:18] <daveake> ... if you hold the board during testing you may find the o/p changes (a lot) if you touch those Rs
[09:18] <Darkside> you'd modify that
[09:18] <Darkside> i'd set UVLO to 0.8V
[09:18] <daveake> Like 5.4V instead of 3.3
[09:18] <Upu> I have some NCP1402s
[09:18] <Upu> RFM22B
[09:19] <Darkside> i'm intrigued now
[09:19] <Darkside> i wonder if i can design a pcb thats only slightly bigger than the RFM22B
[09:19] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude.
[09:20] <Darkside> and basically only has an atmega328, the MAX-6Q and a boost converter
[09:20] <Darkside> might be a bit hard with a 2-layer board
[09:22] <number10> at work some guys designed a circuit as thin as a credit card - had processor ublox 5 chip and the antenna was etched on the PCB i think - if you are making a lightwieght cct for pico Upu - I can see if I can get the gps antenna info
[09:22] <Upu> sure number10
[09:25] <Upu> I've been looking at these ublox modules on EBay
[09:25] <Upu> like this : http://imagebin.org/196164
[09:25] <Upu> and the hardware integration manual specifically says don't run the RF under the chip
[09:25] <Upu> and they all do
[09:25] <Upu> RF is the top left pin of that chip
[09:27] <number10> they probably just bunged it together and it sort of works - unless they have screened layer and are running on oposite side - there are some throgh holes near the antenna but cant realy see well enough
[09:28] <number10> when the rf guys do a pcb at work - they are always sitting in with the cad people
[09:30] <Upu> its all very interesting
[09:30] <Upu> sadly got to go to Tescos
[09:30] <Upu> back soon
[09:32] <number10> same about the prediction daveake there doesnt appear to be any wind here - but I have no idea what its like at >10km
[09:33] <number10> shame
[09:33] <daveake> Yeah, I looked out and it's still and misty. Re-ran the prediction and it still says the same
[09:34] <daveake> Next Saturday looks better
[09:34] <number10> have you run a pred for next sat?
[09:34] <daveake> Yes, hence that comment :)
[09:35] <number10> ok just thought u were mistic meg
[09:35] <daveake> LOL justamo
[09:35] <daveake> W/ standard figures - http://habhub.org/predict/#!/uuid=3d1deb1fd5f9cdd269ccc9d103c2ffc7d1d8a281
[09:35] <number10> saves me guessing were you live again
[09:36] <daveake> I'm getting very good at your typos :)
[09:36] <daveake> Also ... Upu is sending me a freebie balloon to test the rfm22b with
[09:37] <daveake> So I'll probably talk to the cusf guys and arrange a launch from there sometime soon
[09:37] <daveake> That will probably be a deliberate one-way float
[09:38] <number10> thanks daveake
[09:39] <number10> did you sort the rebooting problem on the rfm22?
[09:39] <daveake> Ah, yes, when I touched the lipower board my fingers landed on some resistors that control the output voltage
[09:40] <daveake> Those are in the range 220k - 2M, and my DMM says my finger is 1M
[09:40] <daveake> I saw wide changes in o/p voltage just by touching the board
[09:40] <daveake> 2.somethinbg up to 5.4V
[09:41] <number10> so problem only when touched
[09:41] <daveake> Yes
[09:41] <Darkside> we use one of those lipower boards on our APRS payload
[09:41] <Darkside> a 5V one
[09:41] <daveake> This is set to 3V3
[09:41] <eroomde> my work is making me a big fan of DC-DC converters
[09:41] <eroomde> the monolithic silter can ones
[09:42] <eroomde> silver*
[09:42] <eroomde> they're great, and come with lots of sexy advantages like galvanic isolation
[09:42] <daveake> It's the finger resistance definitely - I put paper between board and finger in case it was capacitance, and the o/p stayed at 3V3 as I prodded
[09:42] <eroomde> which seems to make the world a better place
[09:42] <daveake> :)
[09:43] <daveake> I'll get a spray of PCB lacquer later
[09:43] <daveake> s/get/give it/
[09:43] <daveake> my typos are complete words :)
[09:44] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) left irc: Ping timeout: 260 seconds
[09:45] juxta (~rootkit@ppp203-122-193-94.static.internode.on.net) joined #highaltitude.
[09:46] <number10> I blame my poor spelling on microfoft auto completeing the rubbish I type - and my age
[09:46] GW8RAK (~chatzilla@host-78-147-38-115.as13285.net) joined #highaltitude.
[09:48] NigelMoby (~nigel@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) joined #highaltitude.
[09:58] jcoxon (~jcoxon@87.114.157.147) joined #highaltitude.
[10:07] <fsphil> I just can't spell, but xchat's spell checker hides most of it :)
[10:10] <daveake> http://media.techeblog.com/images/funny_autocorrect.jpg
[10:10] fsphil-laptop (~phil@2001:8b0:34:1:219:d2ff:fe09:a6b9) joined #highaltitude.
[10:13] <fsphil> iphones on the moon, it'll happen eventually
[10:13] <jcoxon> morning
[10:14] NickB1 (~NickB@d54C3B15F.access.telenet.be) left irc:
[10:14] <fsphil-laptop> morning jcoxon!
[10:32] <jcoxon> hey fsphil-laptop
[10:32] <jcoxon> any good with PROGMEM?
[10:32] <fsphil-laptop> I've done a bit of it
[10:32] <jcoxon> looking at the tutorials you need to have a buffer to read a string out of PROGMEM and then you can use it
[10:32] <jcoxon> so you can't directly use it
[10:33] <fsphil-laptop> yea, unless the function was written explicitly for progmem
[10:33] <fsphil-laptop> there are _P versions of some of the string functions
[10:33] <jcoxon> i see
[10:33] <jcoxon> i guess if you've got more then one string it is worth it
[10:34] <fsphil-laptop> definitely- esp. on the smaller avrs
[10:35] <jcoxon> cool cool
[10:38] Action: jcoxon is trying to reduce ram usage
[10:46] <Darkside> ok... first version of the cutdown board PCB is done...
[10:46] <Darkside> oooh, if i shave off 1.28mm it'll fit within th 5x5cm PCB rules
[10:47] <Darkside> done :P
[10:47] <Upu> daveake just a thought
[10:47] <Upu> if you're going to float it
[10:48] <Upu> can we ramp the power up when it leaves our shores ?
[10:49] <Upu> if the code is working don't go break it but I'd like to get as much data as possible from this module
[11:00] <daveake> Yeah, can do that no problem
[11:00] <jcoxon> my only concern is about hte lipower
[11:01] <jcoxon> more tx power will been more amps
[11:01] <jcoxon> and late in the flight your source is going to be low
[11:01] <daveake> Well this test flight will be a Latex one so I can add more cells
[11:02] <Upu> morning jcoxon
[11:02] <Upu> been thinking about that Antenova and what apain it will be to solder
[11:02] <Upu> so how about uBlox MAX-6
[11:02] <Upu> and
[11:02] <Upu> 1 sec lost link
[11:03] <Darkside> http://i.imgur.com/aOms0.jpg
[11:03] <Upu> http://www.sparkfun.com/products/9131
[11:03] <Upu> that
[11:04] <Upu> hey Darkside whats that do ? No GPS ?
[11:04] <Darkside> cutdown
[11:04] <Darkside> and only cutdown
[11:04] <Upu> oh receives a command ?
[11:04] <Upu> gotcha nice
[11:04] <Darkside> though i'm thinking i might be able to fit a MAX-6 and tiny antenna on there somewhere
[11:04] <Upu> indeed
[11:04] <Upu> designs in Altrium always look nicer
[11:05] <Darkside> Altium
[11:05] <Darkside> not altrium
[11:05] <Upu> that too
[11:06] <Darkside> Upu: if you can, could you get a pic of the *bottom* of a RFM22B board?
[11:06] <Upu> they are at work but will get one tomorrow
[11:06] <Darkside> i'm running a lot of traces under the board, just wondering if thats going to cause problems
[11:06] <Upu> I'll get you a pic tomorrow no problems
[11:06] <Darkside> cool
[11:07] <daveake> I'd do it, but I can't see the bottom of the board anymore :)
[11:07] <Darkside> :P
[11:08] <shenki> Darkside: is the 8-pin IC a flash chip?
[11:08] <Darkside> shenki: dual FET
[11:09] <shenki> oh sure
[11:09] <shenki> it goes to the valve and the wire headers :P
[11:09] <shenki> what is GND/TX/RX?
[11:09] <Darkside> debug UART
[11:09] <shenki> okay
[11:10] <shenki> why do we need a ISP too?
[11:10] <number10> I see you are keeping the Egyptian theme with your boards Darkside
[11:10] <Darkside> .. to program the board
[11:10] <Darkside> number10: osiris is the god of death
[11:10] <Darkside> so i thought it kind of fitting
[11:10] <shenki> heh
[11:10] <shenki> +1
[11:12] <Upu> you'll get to Upuaut soon :)
[11:12] <Darkside> lol
[11:12] <number10> you should had geb after nut bofore osiris
[11:12] <Darkside> it was either Osiris or Icarus, but i figured i'd better stick with the egyptian theme
[11:13] <Darkside> though Icarus does fit this *really* well
[11:13] <number10> I am going for Anu for my baloon
[11:13] <shenki> Darkside: http://bunniestudios.com/blog/images/RcgQC4.jpg
[11:13] <Darkside> yes yes i know
[11:13] <Darkside> i'm kind of limited by space on this pcb
[11:13] <Darkside> but yes, i plan to break out more of the IOs :P
[11:14] <shenki> Darkside: did you see laforge's blog about the GPS modules?
[11:14] <Darkside> no
[11:14] <Darkside> link
[11:14] <Upu> trying to find some robust SMT connector for ICSP
[11:14] jcoxon (~jcoxon@87.114.157.147) left irc: Quit: Leaving
[11:14] <shenki> Darkside: http://laforge.gnumonks.org/weblog/2012/01/25/#20120125-osmo_nvs_gps
[11:15] <Darkside> oh those ones
[11:15] <Upu> that 6 way TH takes up lots of space
[11:15] <shenki> he mentioned in passing that they're almost standardising on 2.5mm jacks as serial connectors on boards
[11:15] <Darkside> shenki: they are HUGE though
[11:15] <shenki> i think it's something to consider
[11:15] <shenki> Darkside: yeah, nvm the gps part
[11:15] <Darkside> shenki: but they are HUGE
[11:15] <Darkside> like, one would be almost half the width of the PCB :P
[11:15] <Upu> routed RF under the chip again
[11:16] <shenki> hrm fair enough
[11:16] <shenki> i guess im more likely to get a mini-usb header on there aren't i ;)
[11:17] <Darkside> shenki: you raise a valid point here
[11:17] <Darkside> actually.... maybe not
[11:17] <Darkside> was thinking of replacing it with a ATmega32U4
[11:17] <Darkside> but then we're gonna be *really* short on RAM
[11:19] <shenki> how much ram do we actually use in our current system/
[11:19] <Darkside> its more the RFM22 stuff that will use up a lot of ram
[11:19] <shenki> ok
[11:19] <Darkside> but using an atmega32u4 does mean we can do USB programming
[11:19] <Darkside> just like on the leostick
[11:19] <shenki> yeah
[11:19] <shenki> which is pretty sweet
[11:20] <Darkside> only promleb there will be voltage levels and stuff
[11:21] <Darkside> i dunno how the atmega32u4 works with 5v usb and 3.3v everything else
[11:21] <Darkside> its worth investigating though
[11:21] <shenki> ah
[11:22] <natrium42> hello {Darkside, shenki, Upu}
[11:22] <shenki> natrium42: o/
[11:22] <Upu> hi natrium42
[11:23] <natrium42> i stayed up to watch australian open
[11:23] <natrium42> :)
[11:23] <Darkside> did you like the screamers?
[11:23] <shenki> natrium42: ah, im watching it too :)
[11:23] <shenki> natrium42: who are you going for in the final?
[11:23] <natrium42> nobody in particular, just great play
[11:24] <natrium42> Darkside: which screamers?
[11:24] <Darkside> the women tennis players
[11:24] <shenki> don't ask him any more questions, i think you've just exhausted Darkside's tennis knowledge
[11:24] <Darkside> haha
[11:24] <Darkside> yep
[11:24] <Darkside> all i know is the noises they're making are a bit over the top
[11:24] GW8RAK (~chatzilla@host-78-147-38-115.as13285.net) left irc: Quit: ChatZilla 0.9.88 [Firefox 9.0.1/20111220165912]
[11:25] <Upu> http://uk.farnell.com/molex/53261-0671/header-right-angle-smt-6way/dp/1125375 that for a ICSP connector
[11:26] navrac (navrac@84.92.14.5) joined #highaltitude.
[11:26] <shenki> Darkside: i have a bag of right-angle power connectors for you
[11:26] <shenki> they are the same pitch as the ones you have
[11:26] <Darkside> what kind?
[11:27] <shenki> but right-angle
[11:27] <Darkside> oh, you mean right-angle headers?
[11:27] <shenki> yes, sorry
[11:27] <shenki> one of the micronut boards that i built has it on
[11:27] <Darkside> i have a small pile of them too :P
[11:27] <shenki> okay
[11:27] cuddykid (~acudworth@128.243.253.217) joined #highaltitude.
[11:27] <Darkside> shenki: remember, i just pilfer components from uni
[11:27] <shenki> yeah
[11:27] <shenki> s/uni/work/ :)
[11:27] <Darkside> since they buy them in lots of a few thousand
[11:27] <Darkside> hehe
[11:27] <Darkside> in your case, probably tens of thousand
[11:28] <Darkside> :P
[11:28] <shenki> :)
[11:40] <cuddykid> morning morning - more bugs to squish today :P
[11:44] <Darkside> stupid nadal
[11:44] <Darkside> what a crap tennis player
[11:44] <Darkside> (see i know tennis)
[11:44] <Darkside> >_>
[11:44] <Darkside> <_<
[11:45] <shenki> lulz
[11:49] andrew_apex (~chatzilla@188-220-169-100.zone11.bethere.co.uk) joined #highaltitude.
[11:51] <fsphil-laptop> tennis? what's that?
[12:12] <daveake> It's the opposite of HAB. It's best when your payload doesn't come back.
[12:12] Dutch-Mill (3e2d8519@gateway/web/freenode/ip.62.45.133.25) joined #highaltitude.
[12:12] <fsphil-laptop> aah
[12:14] <navrac> hi daveake - I see you solved your power problems
[12:15] <daveake> Yeah, wasn't what I was expecting
[12:15] <navrac> hard to track these things down sometimes. especially now everythings to small you arent sure what is effecting what
[12:16] <daveake> Yeah, at first I assumed there was a dry joint, because it was OK so long as I didn't touch anything.
[12:16] <daveake> But tapping all the joints did nothing.
[12:17] <daveake> So then I thought it would be a lack of decoupling, especially with the 25cm power lines I had
[12:17] <navrac> mines now pretty much stable - except for the 5v step up which measures 6v - turns out its 5v plus a lot of ac
[12:17] <daveake> So I added caps and shortened the wires
[12:17] <navrac> well the rfm does seem susceptible to psu noise
[12:17] <daveake> Finally I put a DMM on the 3V3 and saw the voltage change wildly when I poked the lipwer board
[12:18] <daveake> Yeah - the other devices didn't care at all
[12:18] <navrac> enough to shutdown the rfm though
[12:18] <daveake> yep
[12:19] <fsphil-laptop> I wonder how it will handle voltage drop as the battery fails
[12:19] <navrac> well after cycling from fridge to fire a few times I think the rfm is going to be ok - at 50baud anyway
[12:19] <daveake> Well if the voltage drops much below 3V the Arduino will stop anyway.
[12:20] CovBalloon (CovBalloon@cpc7-cove12-2-0-cust297.3-1.cable.virginmedia.com) joined #highaltitude.
[12:20] <navrac> well I ran the board down to completely flat last night and it was pretty good - i didnt check it all the time but i did check hourly and it was in the right ballpark till the drops from the gps getting lock were causing it to pull more than i'd like - but that was quite a few hours in and the battery wasnt new
[12:21] <daveake> I've tested the mini pro with a dying battery twice. Below 3.1V in to the reg (which will be dropping about 0.15V) the Arduino stops. The GPS and NTX2 stop at about the same point
[12:21] <navrac> i skip the reg in and go straight for the 3v3 in
[12:21] <daveake> I do for this
[12:21] <navrac> gives me a tiny bit more headroom
[12:22] <daveake> I'm talking about my regular payloads where I have 3 or 4 Lithiums in to the pro
[12:22] LazyLeopard (~irc-clien@chocky.demon.co.uk) left irc: Quit: Bye
[12:22] <daveake> For the pico payload I have the lipower in to the 3V3 line
[12:23] <navrac> but I think given it was one AAA 5 or 6 hours wasnt too bad especially since the gps was not getting lock so was drawing a bit more than I'd like
[12:24] <navrac> off to solder up my new shiny pcb
[12:24] <daveake> Not bad. For the test flight (dunno if you saw, but Upu is sending me a spare balloon so I can run a test flight with the rfm22) I can use an AA for more hours
[12:24] <daveake> Might be 2 in - there's a chance that flight will float (that's what I'll be aiming for)
[12:25] <navrac> oh excellent - is that a pico or biggie
[12:25] <daveake> Biggie - 1600 floatmobile
[12:25] <navrac> oh brilliant - I'll track that and keep a log of drift
[12:26] <daveake> Yeah, a more useful test than what I was going to do which was a foil flight
[12:26] <navrac> Im going to do a foil on the 1th work permitting
[12:26] <daveake> Another option is that I plan to launch cloud3 (full fat photographic payload under a 1000g hwoyee) next weekend, and I could fly the rfm22b pico payload as a second payload
[12:27] <daveake> options options choices choices
[12:28] <daveake> Also ... I was thinking of having the payload switch every 10 minutes between those 2 methods of frequency control. See what works best for people
[12:29] <daveake> For some reason my setup here does work better with the setFrequency() call, though the ignal looks clearer with yours
[12:29] Dutch-Mill (3e2d8519@gateway/web/freenode/ip.62.45.133.25) left irc: Ping timeout: 245 seconds
[12:30] <navrac> odd isnt it. I will check with a low signal later. But a good idea to test it in the field rather than on a bench
[12:31] <daveake> Indeed
[12:34] <navrac> http://s1078.photobucket.com/albums/w493/navrac_/?action=view&current=CIMG0173.jpg
[12:34] <daveake> neat
[12:34] <fsphil-laptop> shiny
[12:34] <navrac> latest pcb - ready for soldering - daughter board as motherboard on same pcb
[12:35] <navrac> yep - Im quite enjoying etching my own - 30 years since i last tried it. At least I'm not having to use letraset
[12:36] <navrac> right off to the iron
[12:36] <fsphil-laptop> did you drill it yourself?
[12:38] <navrac> yep - not very well as I've lost the collet for the miuni drill
[12:38] <navrac> so i just did it with the adapter for my power drill and rotated it by hand
[12:39] <daveake> I don't think it was that long ago I chucked out the letraset
[12:40] <navrac> I have someone who is brilliant at pcb's who does it for my company who normally knocks them up for me and slips them onto the edge of someone elses pcb - but he's not been well so I'm lumped with doing it
[12:41] <navrac> right time to solder up
[12:41] <navrac> cu later
[12:41] <fsphil-laptop> enjoy
[12:57] CovBalloon (CovBalloon@cpc7-cove12-2-0-cust297.3-1.cable.virginmedia.com) left irc: Ping timeout: 252 seconds
[13:38] CovBalloon (CovBalloon@cpc7-cove12-2-0-cust297.3-1.cable.virginmedia.com) joined #highaltitude.
[13:42] <daveake> Upu I can see I had one of those Rx/Tx moments recently ...
[13:43] <daveake> ... which now explains why the backup battery on a fsa03 had sqrt(f-all) effect :)
[13:44] <daveake> I was obviously looking at the back of the board while referring to the diagram of the front.
[13:44] Laurenceb_ (~Laurence@host86-179-87-64.range86-179.btcentralplus.com) joined #highaltitude.
[13:47] <fsphil-laptop> d'oh
[13:48] <daveake> ublox rools .. I've just now wired one up directly to the Arduino in my pico payload. It got a lock within 2 mins and if I stick an eye where it is I can hardly see any sky at all
[13:50] <number10> lets have a pic then :)
[13:50] wyan (~wyan@fnords.info) joined #highaltitude.
[13:52] <daveake> Need to find somewhere for the lipower then you can have it
[13:52] <daveake> Bit of a 3D puzzle :)
[13:53] <daveake> The whole thing including battery will weigh 1/3rd of the GPS antenna on cloud1
[13:54] MoALTz (~no@host-92-2-121-62.as43234.net) joined #highaltitude.
[13:55] wyan (~wyan@fnords.info) left irc: Quit: ZNC - http://znc.sourceforge.net
[13:56] wyan (~wyan@fnords.info) joined #highaltitude.
[13:56] MoALTz__ (~no@host-92-2-121-62.as43234.net) left irc: Ping timeout: 260 seconds
[14:08] <fsphil-laptop> bug fixed, and now another one has appeared. yay
[14:14] <daveake> They take it in turns
[14:15] <fsphil-laptop> at least I know what's causing this one
[14:16] <fsphil-laptop> just awkward to fix
[14:18] <number10> sumothing that software engineers and entomologists have an common
[14:18] <number10> wow that something came out wrong
[14:18] <number10> wonde if daveake spotted it
[14:18] <daveake> of courde :)
[14:19] <fsphil-laptop> spouted what?
[14:19] <number10> you have the equivalent to a visual babel fish
[14:19] <number10> lol fsphil-laptop
[14:19] <daveake> Yesterday I proved the non-existence of cod
[14:20] <number10> where you on inland waters above the low water tide mark - or is that summint to do with radio ham lecensing
[14:21] <daveake> stack overflow in babel.c
[14:21] <number10> sorry lol
[14:22] <number10> more like a core dump
[14:22] <daveake> I did one of those earlier
[14:22] <number10> dont go there
[14:22] <daveake> That's what I told the misses
[14:22] <number10> lol
[14:33] Darkside (~Darkside@compsci.adl/committee/darkside) left irc: Ping timeout: 240 seconds
[14:43] Darkside (~Darkside@compsci.adl/committee/darkside) joined #highaltitude.
[14:51] <daveake> number10 - here's the payload, minus antenna and battery - http://imgur.com/Yh4mw
[14:52] <fsphil-laptop> A simple typo and I appear to have destroyed the earth: http://i.imgur.com/2TC0m.jpg
[14:52] <daveake> You're related to Vogons?
[14:52] <fsphil-laptop> *checks nose*
[14:52] <number10> that looks nicely crafted daveake
[14:52] <fsphil-laptop> don't think so
[14:53] <daveake> Work of art :)
[14:53] <daveake> (my payload not phil's nose)
[14:53] <fsphil-laptop> well...
[14:53] <daveake> (not that I'd know)
[14:54] <number10> have you busted you ssdv fsphil-laptop ?
[14:54] <daveake> 16g
[14:54] <number10> +r
[14:54] <fsphil-laptop> number10, in an attempt to improve it yea :)
[14:54] <fsphil-laptop> I made the images 5% smaller by removing the earth
[14:57] <daveake> I'll be 26g or soincluding battery and antenna
[14:57] <daveake> It
[14:57] <daveake> Not me
[15:15] jcoxon (~jcoxon@87.114.157.147) joined #highaltitude.
[15:15] <jcoxon> phew, my SPoT is still working
[15:16] <fsphil-laptop> what did you do to it?
[15:17] <jcoxon> well it hasn't actually sent a message since being stuck in a tree
[15:17] <fsphil-laptop> aaah
[15:21] CovBalloon (CovBalloon@cpc7-cove12-2-0-cust297.3-1.cable.virginmedia.com) left irc: Ping timeout: 260 seconds
[15:24] Zuph (~Zuph@2001:470:8:626:21d:7dff:fe0b:5e97) joined #highaltitude.
[15:29] <fsphil-laptop> yay bug fixed, images are about 4% smaller now
[15:30] <daveake> woohoo
[15:35] <fsphil-laptop> I'm adding extra headers, which will probably make them 4% bigger
[15:43] <Randomskk> you should use raptor coding on your ssdv
[15:49] CovBalloon (CovBalloon@cpc7-cove12-2-0-cust297.3-1.cable.virginmedia.com) joined #highaltitude.
[15:51] <Laurenceb_> rapture?
[15:51] <Laurenceb_> theres a clever girl
[15:53] gb73d (gb73d@81-178-183-180.dsl.pipex.com) joined #highaltitude.
[15:53] <fsphil-laptop> feasible to do that on an avr?
[15:55] jcoxon (~jcoxon@87.114.157.147) left irc: Quit: This computer has gone to sleep
[16:13] MoALTz_ (~no@host-92-8-152-154.as43234.net) joined #highaltitude.
[16:15] MoALTz (~no@host-92-2-121-62.as43234.net) left irc: Ping timeout: 255 seconds
[16:31] <Randomskk> are you doing reed-solomon at the moment?
[16:31] <Randomskk> I think raptor is actually easier than RS. it uses RS at one stage where there's less data to do RS on, so
[16:31] <fsphil-laptop> RS yea
[16:32] <Randomskk> it's a fountain code, so you can keep transmitting as long as you like per image, and the longer you transmit, the better the odds of reassembling the entire image on the ground
[16:33] <fsphil-laptop> does that still work if a receiver starts half way through an image?
[16:33] <Randomskk> yea
[16:33] <Randomskk> if you have k blocks in the image
[16:33] <Randomskk> then in theory you just need to receive any k transmissions to reassemble the entire image
[16:33] <Randomskk> in reality it's not perfect so it's more like k + a couple
[16:33] <Randomskk> but the crucial point is they can be any k
[16:34] <Randomskk> so if you transmit like 1.5*k blocks per image, odds of reassmbling the entire thing are pretty decent
[16:34] <Randomskk> fountain codes are the same things used by bittorrent so that you can just start picking up data whenever and start to assemble the entire file, or satellites where retransmission of missed data is a pain
[16:38] <cuddykid> surely all the ssdv stuff munches through the ram like there's no tomorrow?
[16:38] <fsphil-laptop> it doesn't fully decode the jpeg, and only works on a small part of it at a time
[16:38] <Randomskk> oh admittedly raptor coding would probably totally destroy all your ram
[16:38] <fsphil-laptop> less than 1k I think
[16:39] <cuddykid> oh I see
[16:39] <fsphil-laptop> although I've never measured it
[16:41] <fsphil-laptop> nice thing is the size of the image has no effect other than to take longer to transmit
[16:48] <cuddykid> wow MapsGL is rather slow
[16:48] <cuddykid> ..on my comp
[16:48] andrew_apex (~chatzilla@188-220-169-100.zone11.bethere.co.uk) left irc: Ping timeout: 252 seconds
[16:52] Zuph (~Zuph@2001:470:8:626:21d:7dff:fe0b:5e97) left irc: Ping timeout: 252 seconds
[16:59] <cuddykid> just got a nice helpful email from RF China/Supplier - thanks Upu for the recommendation!
[17:06] Zuph (~Zuph@96-28-176-109.dhcp.insightbb.com) joined #highaltitude.
[17:07] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude.
[17:11] Gnea (~gnea@unaffiliated/gnea) left irc: Read error: Connection reset by peer
[17:14] Gnea (~gnea@unaffiliated/gnea) joined #highaltitude.
[17:18] <nosebleedkt> its live with it or leave with it?
[17:18] MoALTz_ (~no@host-92-8-152-154.as43234.net) left irc: Quit: Leaving
[17:18] <nosebleedkt> meaning be with it
[17:18] <daveake> Just done a quick range test with the rfm22 vs ntx2
[17:19] <daveake> 2 payloads set up next to an upstairs window, then drove away till the signal fell away.
[17:20] <daveake> Not a lot in it. Difficult to tell but the rfm22 may have given 1-2 db better s/n in fldigi, and was decoding better with a weak signal
[17:20] <Upu> no problems cuddykid they are really trying at the customer service thing
[17:20] <daveake> Not a very scientific test tho
[17:20] <Upu> very interested in the results from launch daveake
[17:21] <Upu> I have the balloon next to me now
[17:21] <daveake> Yeah, should be interesting
[17:21] <daveake> It's no good there :D
[17:21] <Upu> you'll have it on Tuesday
[17:21] <daveake> <burns>Exxxcellent....</burns>
[17:28] nosebleedkt (~nosebleed@ppp141237029227.dsl.hol.gr) left irc: Quit: If you run you only gonna die tired
[17:28] Gnea (~gnea@unaffiliated/gnea) left irc: Remote host closed the connection
[17:33] Gnea (~gnea@unaffiliated/gnea) joined #highaltitude.
[17:36] daveake (daveake@daveake.plus.com) left #highaltitude.
[17:43] MoALTz (~no@host-92-2-156-99.as43234.net) joined #highaltitude.
[17:46] <cuddykid> daveake / Upu: what are you planning, a launch just with rfm22?
[17:46] <Upu> thats the plan mainly daveake
[17:46] <cuddykid> nice
[17:50] <fsphil> spiffy: http://www.youtube.com/watch?v=SkiNUMKKsgM
[17:52] <fsphil> I wonder if the people in Tromsø get used to seeing that
[17:52] <SamSilver_> I love balloons > http://i.imgur.com/U3BDh.jpg
[17:53] <SamSilver_> I had my own hot air balloon
[17:53] <SamSilver_> but a random search makes ballooning soooooooo much more fun
[17:55] Nick change: SamSilver_ -> SamSilver
[17:55] <SamSilver> afk
[17:55] <natrium42> SamSilver: ...
[17:55] <natrium42> outlet porn not enough anymore?
[17:55] <SamSilver> natrium42: LOL
[17:55] <SamSilver> my plug points are wrecked
[17:56] <SamSilver> my wall warts are rude
[17:56] <SamSilver> my 2 into 1
[17:56] <natrium42> hehe
[17:56] <SamSilver> is wrecked
[17:56] <SamSilver> lol
[17:56] <SamSilver> thanx for a great link
[17:57] <SamSilver> I love this link
[17:57] <Laurenceb_> too much information
[17:57] <SamSilver> http://www.glory.lt/galerija/galleries/GLORY%20I/50.JPG
[17:57] Action: fsphil-laptop decides not to click the link
[17:58] <SamSilver> http://www.glory.lt/galerija/galleries/GLORY%20I/58.JPG
[17:58] <fsphil-laptop> aah, pcb porn
[17:58] <SamSilver> that has got my motor running
[17:59] <Laurenceb_> how many AA cells?!
[17:59] <SamSilver> fsphil-laptop: pcb por is soooo old ....
[17:59] <natrium42> 3 dc/dc converters?
[17:59] <SamSilver> porn
[17:59] <SamSilver> natrium42: I know has she no limits
[17:59] JabELB (51dbcec7@gateway/web/freenode/ip.81.219.206.199) joined #highaltitude.
[18:00] <SamSilver> next thing you know she will be doing "low drop out" stuff!!!
[18:01] <natrium42> slut!
[18:01] Jasperw (~jasperw@2a01:348:82:0:223:5aff:fef5:cce) joined #highaltitude.
[18:02] <SamSilver> lol dirty 240v slut
[18:02] JabELB (51dbcec7@gateway/web/freenode/ip.81.219.206.199) left irc: Client Quit
[18:02] <SamSilver> or even 2.6 v dropout
[18:02] <SamSilver> not even deep cycle batt shit
[18:04] cuddykid (~acudworth@128.243.253.217) left irc: Read error: Operation timed out
[18:04] cuddykid (~acudworth@92.40.254.56.threembb.co.uk) joined #highaltitude.
[18:06] CovBalloon (CovBalloon@cpc7-cove12-2-0-cust297.3-1.cable.virginmedia.com) left irc: Ping timeout: 244 seconds
[18:12] <Laurenceb_> heh n-prize.com is down
[18:12] <Laurenceb_> didnt see that happening
[18:12] <natrium42> lol
[18:12] cuddykid (~acudworth@92.40.254.56.threembb.co.uk) left irc: Read error: Connection reset by peer
[18:13] cuddykid (~acudworth@128.243.253.217) joined #highaltitude.
[18:13] <Laurenceb_> as are most of the team sites
[18:16] daveake_ (~daveake@daveake.plus.com) joined #highaltitude.
[18:17] <Laurenceb_> http://www.youtube.com/watch?feature=player_embedded&v=DNtUvAQtUQo
[18:17] <Laurenceb_> lol fail
[18:17] cuddykid (~acudworth@128.243.253.217) left irc: Ping timeout: 252 seconds
[18:18] Nick change: daveake_ -> daveake
[18:54] Vrooom (666@87-194-209-62.bethere.co.uk) joined #highaltitude.
[18:55] <Vrooom> if you strap a small proper rocket, when the balloon burst, do you think rocket will able to reach space ?
[18:55] <SpeedEvil> In principle, yes.
[18:55] <SpeedEvil> For proper definitions of rocket, and space
[18:56] <SpeedEvil> Getting to orbit requries at least 2 stages, and either a _really_ large balloon, or some cleverness.
[18:56] <SpeedEvil> Getting to (say) 100km requires 'only' a spun rocket, with a longish burn time
[18:57] <Vrooom> mmm
[19:01] cuddykid (~acudworth@128.243.253.217) joined #highaltitude.
[19:01] <Vrooom> this balloon, i cant just launch it on some random muddy field ?
[19:10] <fsphil-laptop> a balloon on it's own would require permission from the CAA
[19:10] <fsphil-laptop> a balloon with a rocket would probably be a lot more difficult to clear with them
[19:11] <BrainDamage> radar stealth rocket
[19:11] <BrainDamage> themal signature would be a giveaway tough
[19:12] <Vrooom> i guess
[19:12] <Vrooom> where ya all from/
[19:14] <Randomskk> there aren't many places you could launch a rocket intending to get to 100km from a balloon
[19:14] <Randomskk> really nowhere in the UK.
[19:14] <Randomskk> and getting any kind of legal permission for it would be.. very challenging
[19:14] <Randomskk> but all of those issues are assuming you can design and build such a rocket and launch kit and hoist it on a balloon, no small challenge
[19:14] <Vrooom> Is it more challanging post 9/11 ??
[19:15] <Randomskk> only for terrorists.
[19:23] cuddykid (~acudworth@128.243.253.217) left irc: Quit: cuddykid
[19:24] NigeyS (~Nigel@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) joined #highaltitude.
[19:30] <navrac> daveake when you did the drive off test what power level did you have the rfm22 at?
[19:30] cuddykid (~acudworth@128.243.253.217) joined #highaltitude.
[19:33] <daveake> navrac (0x6d, 0x03) ==> 10dbm
[19:33] <navrac> 0x03 is 8dbm - so impressive
[19:33] <daveake> Oh, read that wrong somewhere then :)
[19:34] <navrac> no it wasme who said that as a rough guide 04 is 11 so 03 is the highest legal into a quarter wave
[19:34] <cuddykid> time to power up my uplink and test it out
[19:34] <navrac> so my fault
[19:35] <Laurenceb_> you could probably do it in nevada desert
[19:36] <navrac> sorry missing . and capital between that and as on msg -2
[19:37] <daveake> Yeah I thought I'd probably gotten that value from you :)
[19:38] <navrac> so in theory3-db up on s/n
[19:38] <navrac> ive decided to spend the next week trying rfm to rfm communication
[19:39] <daveake> In theory ... put placement of the 2 payloads may affect it (near windows/walls/whatever). Plus I handheld the receiver with the supplied antenna (can't find my magmount - grrrr)
[19:40] <daveake> s/put/but
[19:40] <navrac> it struck me that we can use remote control frequency at 458MHZ with 100mW and the lowest possible baud rate with error correction to do an uplink
[19:42] <navrac> and i think the rfm will do 458. Just designing a 458mhz patch antenna for the payload on pcb
[19:56] number10 (5686a761@gateway/web/freenode/ip.86.134.167.97) left irc: Quit: Page closed
[20:02] Dibblah (~Dibblah@cpc2-dund11-2-0-cust798.sgyl.cable.virginmedia.com) joined #highaltitude.
[20:10] nosebleedkt (~nosebleed@ppp141237029227.dsl.hol.gr) joined #highaltitude.
[20:15] nosebleedkt (~nosebleed@ppp141237029227.dsl.hol.gr) left irc: Quit: If you run you only gonna die tired
[20:18] WB9SBD (cfbe61e8@gateway/web/freenode/ip.207.190.97.232) joined #highaltitude.
[20:19] <WB9SBD> Anyone Here?
[20:21] <fsphil-laptop> mostly :)
[20:21] <WB9SBD> same here in and out.
[20:23] <daveake> on and off
[20:23] <WB9SBD> back and forth
[20:25] <x-f> up and down
[20:26] <WB9SBD> left and right
[20:26] <daveake> lsb and usb
[20:27] <fsphil-laptop> chalk and cheese
[20:27] <WB9SBD> go / nogo
[20:27] <WB9SBD> cha;k & Cheese?
[20:27] <fsphil-laptop> similar to apples and oranges
[20:28] <WB9SBD> Wow never heard of that one before.
[20:28] <Upu> evening
[20:29] <WB9SBD> hey the list of the people at the right, is that everyone in here? or what?
[20:29] <WB9SBD> afternoon here.
[20:29] <fsphil-laptop> "here" might be pushing it, but they're logged in anyway :)
[20:29] <WB9SBD> wow,
[20:29] <daveake> :D
[20:30] <Upu> WB9SBD thats everyone here yes
[20:30] <Upu> it gets quite busy here :)
[20:30] <Upu> euro times anyway
[20:32] <WB9SBD> Or during abig balloon mission.
[20:33] <fsphil-laptop> oh yes
[20:33] <Upu> oh it gets very busy in here then, we had 120+ when CNSP decided to bomb Spain
[20:37] <daveake> Nobody expected the Spanish invasion
[20:40] <WB9SBD> Thats for sure!
[20:42] <Upu> so this RFM board daveake got some pic s?
[20:42] jcoxon (~jcoxon@87.114.157.147) joined #highaltitude.
[20:42] <Upu> of it wired up
[20:42] <Upu> evening jcoxon
[20:43] <daveake> Assembled with the arduino etc yes
[20:43] <daveake> Justamo
[20:45] <daveake> http://imgur.com/yqjSc
[20:45] <Upu> wow :)
[20:45] <daveake> Now we need someone to do a PCB, hint hint
[20:46] <Upu> this is a complement but nice cludge :)
[20:46] <fsphil-laptop> lol
[20:46] <fsphil-laptop> it's certainly unique
[20:46] <daveake> Oh, I realise what it is :D
[20:46] <Upu> I've done one :)
[20:46] <Upu> just waiting on you to confirm if the RFM22 is flight worthy before I go any further :)
[20:46] <Upu> whats the cap for on the BMP085 breakout ?
[20:47] <Upu> thats actually quite amazing daveake I love it
[20:47] <daveake> That can come off ... I had trouble with the rfm22 resetting but that as I've said was a different cause
[20:47] <daveake> 16g total
[20:47] <Upu> thats not alot
[20:47] <Upu> 3g of that is the Sarantel
[20:48] <Upu> I'm working on a design that does all that but with a SMT antenna
[20:48] <daveake> + AAA + antenna. Comes out at 28g IIRC
[20:48] <daveake> Right now the lipower has been taken off because I forgot to do the mod to allow it to run below 2.6V input :p
[20:48] <Upu> board at the bottom the step up ?
[20:48] Lunar_Lander (~gd-fermi@p5488367E.dip.t-dialin.net) joined #highaltitude.
[20:48] <daveake> yes
[20:48] <Lunar_Lander> hello
[20:49] <daveake> It's very noticeable that the COG is largely dictated by the fsa03 antenna!
[20:50] <Upu> lovely antenna but they are very heavy*
[20:50] <Upu> *relatively :)
[20:50] <cuddykid> daveake: incredible!
[20:50] <Upu> isn't it just cuddykid
[20:51] <cuddykid> yup
[20:51] <daveake> Yep. When I finished assembly it was still on my desk, with very little view of the sky (obscured by monitors!) but still got a lock within a minute or two
[20:51] <Upu> the BMP085 is the only part I'm not sure about, just not sure I can solder them
[20:51] <fsphil-laptop> you could attach that to a bird
[20:51] <cuddykid> daveake: what's the board on the bottom?
[20:51] <daveake> lipower
[20:51] LazyLeopard (~irc-clien@chocky.demon.co.uk) left irc: Quit: Bye
[20:51] <cuddykid> ahh
[20:52] <Upu> Q: if this is going under a 1600g are you using LiPo's or Energizers ?
[20:52] <daveake> Takes 0.6V and above (when modded anyway) and gives 3.3V or 5V (switchable with a solder jump)
[20:52] <Upu> I think I'm going to use those on my future boards as they worth both ways, boost or regulate it
[20:52] <daveake> For that I'll run it from Energizers.
[20:53] <Upu> k
[20:53] <cuddykid> :O 1600g for that!
[20:53] <Upu> it needs a proper test cuddykid
[20:53] <cuddykid> going for a monster altitude record?
[20:53] Dan-K2VOL (~Dan-K2VOL@69.64.6.70) joined #highaltitude.
[20:53] <Upu> and daveake is flight ready so
[20:53] <cuddykid> indeed
[20:53] <daveake> More float to see how far it'll work
[20:53] <cuddykid> cool :) can't wait
[20:53] Dan-K2VOL (~Dan-K2VOL@69.64.6.70) left irc: Client Quit
[20:53] <Upu> actually daveake get some hydrogen and go take the record back from our America buddies
[20:53] <daveake> :D
[20:54] <fsphil-laptop> +1
[20:54] <fsphil-laptop> carefully, of course
[20:54] <cuddykid> yeah!
[20:54] <daveake> Anyone suggest where to get it?
[20:54] <Upu> BoC
[20:54] <Upu> special order
[20:54] <Upu> they can get it in
[20:54] <daveake> I need an account?
[20:54] <cuddykid> could get a very low ascent rate and go for 40+km
[20:54] <Upu> you just have to order it as they don't like having it lying about
[20:54] <daveake> I imagine
[20:54] <Upu> you start one up when you get the first cylinder
[20:55] <daveake> OK
[20:55] Dan-K2VOL (~Dan-K2VOL@69.64.6.70) joined #highaltitude.
[20:55] <Upu> though tbh Helium and a low accent rate should do it
[20:55] <cuddykid> took me about 10mins to create an account with them
[20:55] <daveake> cuddykid doesn't really work like that ... too slow and it'll float when it runs out of lift
[20:55] <Upu> if you do go Hyrdogen make sure you put a warning note on it
[20:55] <daveake> cuddykid cool
[20:55] <daveake> I'll call them tomorrow then
[20:55] <cuddykid> :)
[20:56] <daveake> Wonder if DangerMouse will let me do 2 launches rather than 1 ...
[20:56] <Upu> https://picasaweb.google.com/118244444241111963790/201107ManLab#5635428773448755778
[20:56] <daveake> ... or I go over to Cambs.
[20:56] <fsphil-laptop> of course, if this floats it may go half way across the planet
[20:56] <daveake> Think I prefer the latter
[20:56] <daveake> I like Upu's idea of upping the Tx power when outside the UK
[20:56] <Upu> https://picasaweb.google.com/118244444241111963790/201107ManLab#5635428782291012658
[20:57] <Upu> also check the flow rate on the cylinders you get
[20:57] <Upu> the ones we had took an hour to fill the ballon
[20:57] <daveake> Pink sign luvvit :)
[20:57] <fsphil-laptop> the cylinders come with their own regulator?
[20:57] <Upu> Mr May in the back ground :)
[20:57] <daveake> Wasn't that deliberate to avoid generating static?
[20:57] <Upu> Hydrogen ones were designed to be used with power cells so were flow rate limited
[20:57] <fsphil-laptop> who's phone number is that on the warning sign?
[20:58] <daveake> Some random person probably :D
[20:58] <Upu> prepay
[20:58] <Upu> so if it blows up, in the nears river
[20:58] <Upu> nearest
[20:58] <daveake> :)
[20:58] <fsphil-laptop> lol
[20:58] <daveake> I have several prepay SIMs for balloons, laptops etc ....
[20:59] <daveake> .... my first balloon one received a text "We're contacting you about the recent accident you had" lol
[20:59] <Upu> that sign was there if it leaked and came down slowly
[20:59] <Lunar_Lander> yea
[20:59] <Lunar_Lander> and there is that Dr Ben or how his name was
[20:59] <Lunar_Lander> xD
[20:59] <Upu> it is yes, he's not even a real doctor
[20:59] <Lunar_Lander> xD
[20:59] <jcoxon> pah
[20:59] <daveake> Who was the one who said on TV that H2 gave *twice* the lift of He? <sigh>
[20:59] <Upu> unlike present company
[21:00] <Lunar_Lander> and is that steve there in the front right?
[21:00] <Upu> Yeah Rocketboy
[21:00] <Upu> floating Rob Harrison : https://picasaweb.google.com/118244444241111963790/201107ManLab#5635428292176649666
[21:01] <Lunar_Lander> xD!
[21:01] <fsphil-laptop> "Screw Gravity"
[21:02] carl_ (442fecae@gateway/web/freenode/ip.68.47.236.174) joined #highaltitude.
[21:02] carl_ (442fecae@gateway/web/freenode/ip.68.47.236.174) left irc: Client Quit
[21:04] <Lunar_Lander> btw
[21:04] <Lunar_Lander> recently I bought a bag of "Bassett's Winegums" and those were supposed to come from the UK also
[21:04] <Lunar_Lander> but I don't know, Dunhills are a bit better I think
[21:04] carl_ (442fecae@gateway/web/freenode/ip.68.47.236.174) joined #highaltitude.
[21:05] <carl_> joe are you here?
[21:05] <WB9SBD> yup i'm here
[21:05] <carl_> are you going to transmit on 30M?
[21:05] <WB9SBD> yup r u ready?
[21:06] <carl_> what freq?
[21:06] <WB9SBD> don't matter if you have that web page also open?
[21:06] <jcoxon> so guys - keep keep the weekend of 10/2/11 - 11/2/11 free - potential launch from myself and steve
[21:06] <fsphil-laptop> ah nuts, I was suppose to wire up my hf antenna today
[21:06] <fsphil-laptop> ooh
[21:06] <carl_> not yet, but I can put the payload on the antenna if you want.
[21:06] <WB9SBD> tellme when u r ready.
[21:07] <cuddykid> my launch (fingers crossed) 25/26th feb
[21:07] <daveake> cool jcoxon. I'm hoping to launch this weekend coming 4th/5th
[21:07] carl_ (442fecae@gateway/web/freenode/ip.68.47.236.174) left irc: Client Quit
[21:07] <WB9SBD> band might be open lets do this other thing first open that other link i sent ya and tellme when it's open and running and then I'll send out a 500milliwatt CQ
[21:08] <Upu> jcoxon pico flights ?
[21:08] <jcoxon> Upu, probably a big flight
[21:08] <Upu> ah my favourite kind
[21:08] <jcoxon> Upu, maybe a big/long flight
[21:08] <fsphil-laptop> lol
[21:08] <jcoxon> will have to see regarding weather
[21:08] niftylettuce_ (u2733@gateway/web/irccloud.com/x-zmgtvbbawlcwssux) left irc: Max SendQ exceeded
[21:08] <Upu> yup
[21:09] carl_ (442fecae@gateway/web/freenode/ip.68.47.236.174) joined #highaltitude.
[21:09] <Upu> right off to watch Top Gear on iPLayer
[21:09] <Lunar_Lander> yay
[21:10] niftylettuce_ (u2733@gateway/web/irccloud.com/x-edeixowuiprahcsq) joined #highaltitude.
[21:10] <carl_> joe, can.t seem to keep 2 windows open at once.
[21:10] <WB9SBD> he he he funny! middle box on the _ X area and re size?
[21:11] <WB9SBD> Or tell me when the other is running and I'll do the CQ and you can watch and then come back here.
[21:12] niftylettuce_ (u2733@gateway/web/irccloud.com/x-edeixowuiprahcsq) left irc: Max SendQ exceeded
[21:13] <carl_> the payload is on running your club call 10.14560 each minute at 20 seconds after
[21:13] <WB9SBD> Ok will listen after this ya got the other web page open?
[21:13] <carl_> just sent transmission in rtty
[21:14] <carl_> both pages open
[21:14] <WB9SBD> OK here goes
[21:16] <WB9SBD> seethat?
[21:16] <carl_> yes w 10 spots
[21:16] niftylettuce_ (u2733@gateway/web/irccloud.com/x-txxkftbjdqxrvygj) joined #highaltitude.
[21:17] <WB9SBD> that was 500milliwatts and a short CQ like CQ CQ CQ de wb9sbd wb9sbd coolhuh?
[21:17] <carl_> can it copy rtty ascii?
[21:17] <WB9SBD> in the future, they are working on it right now just CW
[21:18] Gnea (~gnea@unaffiliated/gnea) left irc: Ping timeout: 240 seconds
[21:18] <carl_> can you monitor for the payload ? kb9kho/b
[21:18] <WB9SBD> willlisten stand by.
[21:19] <carl_> start at 20 seconds after each minute
[21:21] <WB9SBD> got a strong computer birdie at that freq on the vertical, let me tune up the loop ,, stand by,
[21:23] <carl_> It will take some time but I can reprogram the payload to send cw constantly to see if they can copy. What are the limits on freq coverage 10.145?
[21:23] <WB9SBD> ug birdie still there also, will have to find out what puter is causing it before launch day.
[21:23] <carl_> I have trouble with dsl interference
[21:24] <WB9SBD> anywhere but right now ignoreing beacons so you'd have to programa CQ he he he
[21:24] <WB9SBD> 1KC higher is dead quiet go figure he he he
[21:24] <carl_> no problem but it will be tonight befor I get it done
[21:24] <WB9SBD> make that 2
[21:25] <carl_> I will pull the plug on the payload if you are done
[21:25] <WB9SBD> on that page? see the blue box at the right? thats who is listening
[21:26] <WB9SBD> sure
[21:26] <carl_> ok will work on a simple cw cq and we can try tonight if you want about 9:pm est?
[21:27] <WB9SBD> is that you?
[21:27] cuddykid (~acudworth@128.243.253.217) left irc: Quit: cuddykid
[21:28] <carl_> just shut it off
[21:28] <WB9SBD> someone cqing almost right on freq. wa8uet nasty chirpy sig.
[21:29] <WB9SBD> must be a spur page pucked himup at 10128.7 but I'mlistening at 101456
[21:30] <carl_> do you still have the interference?
[21:30] <WB9SBD> yup.
[21:30] <WB9SBD> ya got ur big rig hooked up?
[21:31] <carl_> ok will work on a software cq program tonight. need to finish work on truck so will say 73'S
[21:32] <WB9SBD> have fun!
[21:32] <WB9SBD> Joe
[21:32] carl_ (442fecae@gateway/web/freenode/ip.68.47.236.174) left irc: Quit: Page closed
[21:32] WB9SBD (cfbe61e8@gateway/web/freenode/ip.207.190.97.232) left irc: Quit: Page closed
[21:42] Vrooom (666@87-194-209-62.bethere.co.uk) left irc:
[21:53] cuddykid (~acudworth@128.243.253.217) joined #highaltitude.
[21:53] <Lunar_Lander> hello cuddykid
[21:53] <cuddykid> Hi Lunar_Lander :)
[21:54] <Lunar_Lander> how are you?
[21:54] <cuddykid> good thanks :) wbu?
[21:54] <Lunar_Lander> I'm good too, thanks
[21:55] <cuddykid> brill
[21:55] <Lunar_Lander> :)
[21:55] <Lunar_Lander> what are you up to at the moment?
[22:00] <cuddykid> just about to test the uplink for the first time :)
[22:00] <Lunar_Lander> cool
[22:00] Action: cuddykid prepares for a big bang
[22:01] <Lunar_Lander> :P
[22:01] <cuddykid> camera is powering on and running through it's setup - hopefully it'll stop and wait for uplink
[22:03] <Lunar_Lander> yea
[22:03] <cuddykid> good, it's stopped
[22:03] <Lunar_Lander> yes
[22:03] <Lunar_Lander> now it has to accept the command, right?
[22:04] <cuddykid> yep
[22:04] <cuddykid> powering on the flight computer now
[22:04] <Lunar_Lander> yes
[22:05] <daveake> <BANG>
[22:05] <Lunar_Lander> XD
[22:07] <Darkside> \o
[22:08] <Lunar_Lander> hello Darkside
[22:08] cuddykid (~acudworth@128.243.253.217) left irc: Ping timeout: 245 seconds
[22:09] cuddykid (~acudworth@128.243.253.217) joined #highaltitude.
[22:09] Action: cuddykid choking in the smoke
[22:10] Jasperw (~jasperw@2a01:348:82:0:223:5aff:fef5:cce) left irc: Read error: Connection reset by peer
[22:10] <cuddykid> sptulol
[22:10] <cuddykid> *lol
[22:10] <Lunar_Lander> XD!
[22:11] Jasperw (~jasperw@2a01:348:82:0:223:5aff:fef5:cce) joined #highaltitude.
[22:11] <cuddykid> silly computer decided to display "You must hold down power button" after I hooked up the gps
[22:11] <cuddykid> must have been something to do with power/serial
[22:11] <cuddykid> had it a fair few times before
[22:12] <cuddykid> any way - time to test
[22:12] <cuddykid> 3
[22:12] <cuddykid> 2
[22:12] <cuddykid> 1
[22:12] <cuddykid> :(
[22:12] aetaric (~aetaric@74-130-83-237.dhcp.insightbb.com) left irc: Quit: aetaric
[22:12] <Lunar_Lander> oh
[22:14] <cuddykid> oooo - the code has been received by flight arduino (just had confirmation from serial)
[22:14] <Lunar_Lander> yea
[22:14] <daveake> cuddykid Be honest - your payload tripped the mains to your house, didn't it?
[22:14] <cuddykid> daveake: tripped the whole halls of residence :P
[22:15] <Darkside> thats a pretty big achievement
[22:15] <cuddykid> j/k
[22:15] <daveake> better :)
[22:15] gb73d (gb73d@81-178-183-180.dsl.pipex.com) left irc: Quit: Whoosh we're gone
[22:16] <cuddykid> right, so it's getting received and processed - know to figure out why it doesn't trigger camera to continue
[22:18] aetaric (~aetaric@74-130-83-237.dhcp.insightbb.com) joined #highaltitude.
[22:19] andrew_apex (~chatzilla@188-220-169-100.zone11.bethere.co.uk) joined #highaltitude.
[22:20] <Lunar_Lander> hello andrew_apex
[22:20] <andrew_apex> hi Lunar_Lander
[22:20] <andrew_apex> how's it going?
[22:20] <Lunar_Lander> I'm good, thanks and you?
[22:21] <cuddykid> here we go, 2nd attempt
[22:22] <cuddykid> nope
[22:23] <andrew_apex> yeah, all's good here :) Except the replacement element for my hot air reflow station had the thermocouple wired backwards :(
[22:23] <andrew_apex> (= positive feedback)
[22:23] <Lunar_Lander> oh ok
[22:28] <Lunar_Lander> doesn't sound good
[22:32] aetaric (~aetaric@74-130-83-237.dhcp.insightbb.com) left irc: Quit: aetaric
[22:33] <andrew_apex> yeah, it wasn't :/...
[22:35] <cuddykid> woo
[22:38] <cuddykid> oh.
[22:38] <cuddykid> not goof
[22:41] <cuddykid> yes! - Working :D
[22:41] <Lunar_Lander> YAY
[22:41] <cuddykid> forgot to set pin mode to output - dohhh
[22:41] <Lunar_Lander> oh
[22:42] <cuddykid> all uplink stuff is working well :)
[22:42] <Lunar_Lander> yea
[22:42] <Lunar_Lander> how do you uplink?
[22:42] <cuddykid> I simply press a button on the "group s
[22:42] <cuddykid> *ground station
[22:42] <cuddykid> board
[22:42] <Lunar_Lander> yes
[22:42] <Lunar_Lander> and then there is an NTX2?
[22:42] <Lunar_Lander> or a different transmitter?
[22:42] <cuddykid> ground station has atmega328 and easyradio
[22:42] <Lunar_Lander> yes
[22:42] <cuddykid> using easy radios for the uplink, ntx2 for downlink
[22:42] <Lunar_Lander> how many commands are there?
[22:42] <Lunar_Lander> yea
[22:43] <cuddykid> just 3 atm
[22:43] <cuddykid> camera on, cutdown, cutdown-canel
[22:43] <cuddykid> *cancel
[22:43] <Lunar_Lander> yea
[22:45] <Lunar_Lander> is there a NRX2 on the payload then to receive the uplink?
[22:45] <cuddykid> easyradio transceiver :)
[22:46] <Lunar_Lander> ah ok :)
[22:46] <cuddykid> I'm not expecting very good range -just flying them to see what's possible
[22:46] <Lunar_Lander> yea
[22:46] <cuddykid> personally I think 5km max - but you never know!
[22:46] <Lunar_Lander> yea
[22:48] <Lunar_Lander> everything has to be tested
[22:50] <cuddykid> yep
[22:50] <Lunar_Lander> yea
[22:51] <cuddykid> they were very easy to interface - serial comms both ends
[22:51] <Lunar_Lander> yea
[22:51] <Lunar_Lander> that sounds good
[22:51] <cuddykid> right, I'm off, cya all tomorrow
[22:53] <Lunar_Lander> good night cuddykid
[22:53] cuddykid (~acudworth@128.243.253.217) left irc: Quit: cuddykid
[23:04] <hibby> what went wrong in my life?
[23:04] <hibby> watching my little pony on my own in teh flat with beer...
[23:05] <daveake> get ----------> life :-)
[23:05] <Lunar_Lander> XD
[23:06] <hibby> lol
[23:06] jcoxon (~jcoxon@87.114.157.147) left irc: Quit: Leaving
[23:07] <hibby> it makes me happy!
[23:09] grummund (~user@unaffiliated/grummund) left irc: Ping timeout: 252 seconds
[23:21] fsphil-laptop (~phil@2001:8b0:34:1:219:d2ff:fe09:a6b9) left irc: Quit: I'm doing science and I'm still alive!
[23:42] Laurenceb_ (~Laurence@host86-179-87-64.range86-179.btcentralplus.com) left irc: Ping timeout: 272 seconds
[23:47] aetaric (~aetaric@74-130-83-237.dhcp.insightbb.com) joined #highaltitude.
[23:52] woyna (woyna@79.133.200.48) joined #highaltitude.
[00:00] --- Mon Jan 30 2012