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[01:19] <juxta> ping natrium42
[01:21] <MrCraig> goodnight
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[01:21] <Darkside> morning juxta
[01:21] <juxta> hey Darkside
[01:26] <Darkside> i did a littlebird order this mornin
[01:27] <Darkside> contains most of the parts i need for the mininut boards
[01:27] <Darkside> i'll have to get some parts from farnell too
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[03:47] <natrium42> juxta: sup?
[04:31] <juxta> hey natrium42
[04:40] <natrium42> sup juxta?
[04:43] <juxta> hey - I was hoping to get some input from you on writing a little google maps app :)
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[06:11] <griffonbot> Received email: James Coxon "Re: [UKHAS] Re: UK Balloon Flight Guidelines"
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[10:17] <Laurenceb_> did someone post a detailed scan of the fsa03 here ages ago?
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[10:38] <griffonbot> Received email: Chris Foote (Spike) "Re: [UKHAS] interesting item on ebay?"
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[10:39] <UpuMobile> morning
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[10:42] <UpuMobile> hey fsphil
[10:42] <UpuMobile> awake ?
[10:42] <fsphil> am indeed UpuMobile
[10:42] <UpuMobile> morning
[10:43] <UpuMobile> what hf frequencies do you xmit voice on ?
[10:44] <fsphil> the only one I've had any sort of success on was 40m
[10:44] <UpuMobile> just up on Otley chevin
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[10:44] <fsphil> aaah, I'm setting my HF vertical right now
[10:45] <UpuMobile> get it up and tell me what freq
[10:45] <fsphil> will do
[10:45] <fsphil> just moving the atu down to the base of the antenna
[10:45] <UpuMobile> radio club guys are trying to get nz atm :)
[10:45] <fsphil> have you had any contacts yet
[10:45] <fsphil> ?
[10:46] <UpuMobile> barcelona
[10:47] <UpuMobile> is there an iss pass due
[10:47] <UpuMobile> ?
[10:49] <griffonbot> Received email: Mission Excelsior "Re: [UKHAS] interesting item on ebay?"
[10:56] <fsphil> lemme check
[10:57] <fsphil> last ISS pass was about 20 minutes ago, doesn't look like there's any more today
[10:58] <fsphil> grr this noise, S9
[10:59] <fsphil> I can't hear a thing on 40m UpuMobile, if you want to call I'll see if I can hear it
[10:59] <russss> ISS picture of the day: http://i.imgur.com/HM0es.jpg
[11:00] <UpuMobile> what frequency ?
[11:00] <fsphil> oh wow
[11:00] <fsphil> UpuMobile, your choice. I can't hear if I'm TX'ing over anyone
[11:00] <SpeedEvil> russss: Lightning?
[11:00] <SpeedEvil> And HDR?
[11:01] <russss> I have no information beyond the filename
[11:01] <SpeedEvil> Actually - no - the bay lights could just be very dim.
[11:01] <russss> it does look like HDR, doesn't it
[11:01] <fsphil> just looks like a long exposure
[11:01] <SpeedEvil> Umm.
[11:01] <SpeedEvil> Doesn't ISS co-rotate with the earth?
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[11:01] <Randomskk> there are stars and there is a well lit shuttle
[11:01] <SpeedEvil> Oh - right.
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[11:01] <Randomskk> hdr seems at least somewhat likely
[11:01] <SpeedEvil> It does but the apparant movement of the earth is more, due to ...
[11:01] <Randomskk> maybe not though, it's a really cool picture either way
[11:02] <UpuMobile> 1 sec
[11:02] <UpuMobile> just finding an antenna
[11:02] <fsphil> so what's up with the purple blob on the earth
[11:02] <SpeedEvil> Could simply be that the bay lights are very dim.
[11:02] <fsphil> below the left wing
[11:02] <SpeedEvil> fsphil: lightning?
[11:02] <Randomskk> SpeedEvil: yea. they are blowing out the top part of the shuttle, after all
[11:02] <SpeedEvil> Or aurorae?
[11:02] <fsphil> hmm maybe -- there's a blue blob there too
[11:03] <fsphil> I've seen purple and blue lightning before
[11:03] <SpeedEvil> I suppose you've got the orientation.
[11:03] <russss> could be lightning
[11:03] <SpeedEvil> You've got ISS orbit.
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[11:03] <SpeedEvil> This gives you a very limited subset of places it could be.
[11:04] <russss> the image is iss028e006192
[11:04] <UpuMobile> ok
[11:04] Action: SpeedEvil wonders if there is an onluine star-tracker web-service.
[11:04] <UpuMobile> what freq should I try on fsphil
[11:05] <fsphil> whatever is clearest for you UpuMobile
[11:05] Action: Laurenceb_ is pondering the fsa03
[11:05] <russss> SpeedEvil: there's astrometry.net but I think that might assume you're on the earth's surface
[11:05] <Laurenceb_> i wonder if theres a config pit to set the buad rate
[11:05] Action: SpeedEvil hits russss with parallax.
[11:05] <Laurenceb_> *pin
[11:06] <SpeedEvil> :)
[11:06] <UpuMobile> 7.048.00
[11:06] <fsphil> k
[11:06] <fsphil> LSB?
[11:06] <russss> I also have this one http://imgur.com/NKkB9
[11:06] <UpuMobile> can't hear anything
[11:06] <UpuMobile> yes
[11:06] <fsphil> make sure there's no CW
[11:06] <UpuMobile> c an xmit
[11:06] <UpuMobile> can't hear any
[11:07] <Randomskk> any guesses on what the city?
[11:07] <Laurenceb_> somewhere north
[11:07] <Laurenceb_> aurora
[11:08] <Randomskk> yea
[11:08] <fsphil> just called UpuMobile
[11:08] <Randomskk> I wonder if you could tell. does google earth have night time images?
[11:08] <Laurenceb_> http://imgur.com/gallery/auOS8
[11:08] <UpuMobile> can't hear
[11:08] <Laurenceb_> hah i have that book
[11:08] <fsphil> just noise here too UpuMobile
[11:08] <fsphil> lemme try with a bit more power
[11:08] <UpuMobile> just noise
[11:09] <fsphil> that last one was at 50 watts
[11:09] <UpuMobile> nothing
[11:09] <fsphil> another band maybe?
[11:10] <UpuMobile> just checking antenna
[11:10] <UpuMobile> which bzand
[11:11] <UpuMobile> can you transmit on 20 m ?
[11:11] <SpeedEvil> Oooh - neat.
[11:11] <SpeedEvil> astrometry has source.
[11:11] Action: SpeedEvil builds.
[11:12] <fsphil> UpuMobile, should be able to manage them all I think
[11:13] <Laurenceb_> anyone here with a 38400 buad fsa03?
[11:13] <Laurenceb_> im wondering if theres some config pins i can hack
[11:13] <Laurenceb_> to change the baud
[11:14] <UpuMobile> 14.247.50
[11:14] <UpuMobile> usb
[11:15] <fsphil> k, one sec
[11:16] <fsphil> anything?
[11:17] <UpuMobile> try again sorry cops just bturned up
[11:17] <Darkside> Laurenceb_: you can program it by serial
[11:17] <Darkside> get it hooked into your PC and run the ublox software on it
[11:17] <Laurenceb_> i know, but you cant turn the baudrate up
[11:18] <Laurenceb_> at least on mine its limited to 9600
[11:18] <fsphil> UpuMobile, done
[11:18] <fsphil> looks like the lower frequencies are better for UK contacts
[11:18] <UpuMobile> negative 1 sev trying something
[11:18] <fsphil> can you tune on 80m?
[11:18] <Darkside> hmm
[11:19] <Darkside> can anyone do 20m?
[11:19] <Darkside> and at what power
[11:19] <UpuMobile> try again on 14.247.50
[11:19] <Darkside> apparently 20m is good to UK atm from australia
[11:20] <Darkside> UpuMobile: can you put out a carrier on 14.247?
[11:20] <Darkside> full power CW
[11:20] <UpuMobile> err I can do a CQ call I think
[11:20] <Darkside> just broadcast a carrier for a bit
[11:21] <UpuMobile> transmitted
[11:21] <Darkside> cant see shit
[11:21] <Darkside> oh well
[11:21] <UpuMobile> 100w
[11:21] <UpuMobile> :)
[11:21] <Darkside> http://www.ips.gov.au/Images/HF%20Systems/Global%20HF/HAP%20Charts/Adelaide.gif
[11:21] <Darkside> apparnetly 14MHz is good to the UK atm
[11:21] <Darkside> but i guess not good enough
[11:22] <Darkside> plus the noise floor in my area is shocking
[11:22] <Darkside> getting S5 noise here
[11:22] <UpuMobile> fsphil could you hear that ?
[11:22] <fsphil> sorry UpuMobile, had to run outside and cover the balun - started raining
[11:23] <fsphil> 100 watts? you git :p
[11:23] <fsphil> lol
[11:23] <fsphil> try again
[11:23] <fsphil> listening on 14.247.50
[11:23] <fsphil> USB
[11:23] <fsphil> actually getting very thundery here :)
[11:24] <UpuMobile> did you hear my cq ?
[11:24] <fsphil> I heard nothing
[11:24] <Darkside> canna hear shit, capt'n
[11:24] <fsphil> this buzz is kill'ing me
[11:24] <Darkside> its daylight over there, right?
[11:24] <UpuMobile> shame never mind
[11:24] <UpuMobile> yeah
[11:24] <Darkside> bah
[11:24] <Darkside> d layer will kill everything
[11:24] <UpuMobile> Dark you in oz ?
[11:24] <Darkside> you ain't gonna get ay local propagation in on 20m
[11:24] <Darkside> UpuMobile: yes
[11:24] <fsphil> wanna try 80m?
[11:24] <Darkside> you guys need to be trying 80m to talk locally
[11:24] <fsphil> brb one sec
[11:25] <UpuMobile> sure give me a frequency
[11:25] <Darkside> 3.590MHz
[11:25] <Darkside> of course that won't get to me
[11:25] <Darkside> anyway, dinnertime
[11:26] <UpuMobile> just tuning
[11:26] <UpuMobile> no can't do 80 sorry
[11:26] <UpuMobile> caqn do 40
[11:26] <UpuMobile> 7.168.00
[11:26] <UpuMobile> lsb
[11:27] <Laurenceb_> has anyone here got an fsa03 set up?
[11:28] <UpuMobile> yeah sorry dragging the channel off topic sorry :)
[11:28] <fsphil> UpuMobile, wanna join #hamaltitude ?
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[12:12] <Hibby> ayeaye
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[12:58] <eroomde> afternoon Hibby
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[13:28] <Laurenceb_> ok this is weird - i cant shange the baud rate at all
[13:28] <Zuph> Mmmm, contractually forbidden tethering....
[13:28] <Laurenceb_> on fsa03 - not even down
[13:42] <eroomde> Zuph: what machine?
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[13:57] <cuddykid> Zuph, iphone?
[14:17] <griffonbot> Received email: Terry Baume "Re: [UKHAS] interesting item on ebay?"
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[14:28] <griffonbot> Received email: Chris Foote (Spike) "Re: [UKHAS] interesting item on ebay?"
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[14:34] <cuddykid> oh wow.. the rain has stopped!
[14:34] <cuddykid> been raining non stop for over 12hrs!
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[14:37] <fsphil> sunny here atm
[14:38] <fsphil> though I see a few dark clouds about
[14:38] <eroomde> fsphil: it was pretty windy and blowy in dublin
[14:41] <jonsowman> hi eroomde, how's things
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[14:50] <Chingy> Hi everyone :)
[14:50] <SamSilver> howdy
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[14:58] <eroomde> hi eroomde, how's things
[14:58] <eroomde> how did i manage that
[14:58] <eroomde> jonsowman: good thanks
[14:58] <jonsowman> :\ I really have no idea
[14:58] <eroomde> you?
[14:59] <jonsowman> not too bad, revising :(
[14:59] <eroomde> :(
[14:59] <eroomde> ipython is really nice, it turns out
[14:59] <eroomde> i doubt this was a surprise to anyone really
[14:59] <eroomde> but i have been enjoying it quite a lot
[14:59] <jonsowman> it looks neat :)
[15:00] <jonsowman> I've been doing nothing interesting whatsoever
[15:00] <eroomde> unfortunately you gotta do it once a year
[15:00] <eroomde> tis crap
[15:00] <jonsowman> heh yes, I'll survive
[15:00] <jonsowman> couple of weeks and they'll be over
[15:05] <eroomde> yup
[15:05] <eroomde> do i have to retsart irssi to load in a new theme?
[15:05] <jonsowman> /reload might work
[15:05] <jonsowman> oh
[15:05] <jonsowman> /set theme <theme_name>
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[15:06] <jonsowman> which theme are you using out of interest? I never really found one I liked
[15:07] <eroomde> just one that works on a white background
[15:07] <eroomde> i can't see yellow on white when someone mentions my nick
[15:07] <jonsowman> ah right
[15:08] <jonsowman> nickcolor.pl has a dark blue colour that's hard to see on a black background
[15:08] <jonsowman> maybe I'll look for a theme one day
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[15:10] <eroomde> jonsowman: can you ping me svp?
[15:10] <jonsowman> eroomde: ping
[15:10] <eroomde> oooh nice
[15:10] <jonsowman> better?
[15:10] <eroomde> this is trakhel.theme
[15:10] <eroomde> pretty purple
[15:10] <jonsowman> they looks pretty nice
[15:10] <jonsowman> I like my black backgrounds though :P
[15:11] <Randomskk> irssi themes seem to be more usefully described as colour schemes
[15:11] <Randomskk> and with very little variation at that
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[15:15] <fsphil> whoever invented PL-259 deserves a slap
[15:15] <Darkside> lol
[15:16] <eroomde> he had a 3-phase soldering iron
[15:16] <fsphil> haha
[15:16] <eroomde> how was he to know the rest of the world doesn't?
[15:16] <Darkside> i prefer bayonet connectors
[15:16] <Darkside> see, bayonet connecters were first used to connect bayonets to guns
[15:17] <Darkside> and as we all know, what works good for killing people works good in RF engineering too
[15:17] <eroomde> no that's not true
[15:17] <eroomde> counterexample: XML
[15:17] <Darkside> ?
[15:17] <Randomskk> yea, XML sucks at RF
[15:17] <eroomde> i was on a project that wanted to send sensor data between a mesh of sensor stations
[15:18] <eroomde> they decided that the best way to do this was to increase the badnwidth requirement 4000 times by wrapping the occassional bytes in masses of xml
[15:18] <Randomskk> D:
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[15:18] <Randomskk> xml makes me sad
[15:18] <fsphil> aah good old xml
[15:19] <eroomde> and when that didn't work, they went back to that old saying: "XML is like violence - if it's not working, you need to use more of it"
[15:19] <eroomde> and it became a nonsense
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[15:27] <m1x10> fsphil: http://slaros.blogspot.com/
[15:27] <m1x10> how do u find my new board?
[15:28] <eroomde> excellent work m1x10 !
[15:29] <eroomde> that looks very logically and clearly layed out
[15:29] <fsphil> love the colour :)
[15:29] <MrCraig> actually wow m1x10
[15:34] <cuddykid> hmm, has anyone used expanding foam before to fill gaps in payload box? I've got a few gaps between poly sheets which I have stuck to outside of box for extra insulation (with glue gun).. but worry the expanding foam may be to vicious and rip off the sheets!
[15:35] <SpeedEvil> The foam sets hard quite quickly.
[15:35] <m1x10> thx
[15:35] <m1x10> Now I need to solder the components and test it
[15:36] <SpeedEvil> Don't use too much in a sealed box - it will blow it open
[15:36] <m1x10> I have one more last month in the army and Im set free !!
[15:36] <SpeedEvil> Woo!
[15:36] <SpeedEvil> Congrats.
[15:36] <m1x10> thx SpeedEvil
[15:36] <m1x10> sounds like i went yesterday
[15:36] <fsphil> nice one m1x10 :)
[15:36] <cuddykid> ok SpeedEvil, just a bit then should be good?
[15:37] <SpeedEvil> cuddykid: a little will work more or less like glue.
[15:37] <cuddykid> yeah, very ncice m1x10
[15:37] <cuddykid> great thanks SpeedEvil
[15:37] <SpeedEvil> cuddykid: Pay scrupulous attention to washing out the nozzle - or you won't ba able to use it again.
[15:37] <cuddykid> ooo.. thanks for heads up!
[15:38] <SpeedEvil> Well - you can.
[15:38] <SpeedEvil> If you drive a nail into the can.
[15:38] <SpeedEvil> But that's harder to seal.
[15:38] <SpeedEvil> :)
[15:39] <cuddykid> :)
[15:41] <m1x10> http://imagebin.org/155911, http://imagebin.org/155912
[15:41] <m1x10> thats my last pics :)
[15:42] <m1x10> in 2nd pic I read avr tutorials :p
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[15:51] <m1x10> for fsphil: http://imagebin.org/155913
[15:51] <m1x10> http://imagebin.org/155915
[15:53] <m1x10> They killed Maila, but I got many new Mailas :)
[15:55] <SamSilver> sorry to hear about the loss of Maila, what the new names?
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[15:58] <m1x10> no names yet
[15:59] <m1x10> maybe i call them highla and altitudla :P
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[16:08] <griffonbot> Received email: Matthew "RE: [UKHAS] interesting item on ebay?"
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[17:09] <mixio> talking from my new laptop
[17:09] <mixio> :)
[17:09] <SpeedEvil> :)
[17:12] <mixio> its a girft
[17:12] <mixio> gift
[17:12] <mixio> for no actual reason
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[17:27] <Laurenceb_> jonsowman: ping
[17:31] <jonsowman> Laurenceb_: pong
[17:31] <Laurenceb_> hi, youve use dthe fsa03 right?
[17:31] <jonsowman> no not really
[17:31] <jonsowman> why?
[17:32] <Laurenceb_> im trying to change baudrate
[17:32] <jonsowman> oh, I can't help there, sorry
[17:32] <jonsowman> :(
[17:32] <Laurenceb_> just saw your name on wiki page
[17:33] <Laurenceb_> i might have it working now, but it wont ack the change baudrate command
[17:33] <Laurenceb_> wonder if it changes the baud then acks
[17:33] <jonsowman> oh I think I was just adding the tinygps link
[17:33] <Laurenceb_> ah
[17:33] <jonsowman> oh, correcting gramma apparently :P http://ukhas.org.uk/guides:falcom_fsa03?rev=1284023819&do=diff
[17:34] <jonsowman> *grammar
[17:34] <Laurenceb_> heh
[17:37] <eroomde> irssi's url parser seems to hiccup on colons
[17:37] <eroomde> which is annoying
[17:37] <jonsowman> I think it's gnome terminal rather than irssi
[17:37] <eroomde> i was just getting to correcting myself^
[17:37] <jonsowman> :)
[17:38] <jonsowman> it is a bit of a pain
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[17:47] <SamSilver> bbl
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[18:05] <Laurenceb_> in c is the a way to include the compilation time?
[18:06] <Laurenceb_> so i could have a string autodefined as the compilation date?
[18:06] <BrainDamage> there's some macros that autoresolve to useful variables, like compiler version, etc
[18:06] <BrainDamage> perhaps there's one for time too
[18:07] <BrainDamage> problem is that they are strongly compiler dependent
[18:07] <BrainDamage> worst case, just fix your buildsystem so that it writes an header with "#define $time" :p
[18:08] <SpeedEvil> Laurenceb: Do it in the makefile
[18:09] <SpeedEvil> gcc flags - -D
[18:09] <SpeedEvil> -Dcompile_time=`date "+%s"`
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[18:13] <griffonbot> Received email: Gareth "[UKHAS] Re: CAA contact?"
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[18:16] <akaGoose> Hi all
[18:17] <SpeedEvil> hi
[18:17] <akaGoose> I've got a couple of questions regarding a high altitude balloon project that I'm putting together....
[18:17] <jonsowman> fire away
[18:17] <akaGoose> Cool
[18:17] Action: SpeedEvil shoots the goose.
[18:17] Action: SpeedEvil gets the oven ready.
[18:18] <SpeedEvil> Nom!
[18:18] <SpeedEvil> What's your project?
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[18:18] <Laurenceb_> http://i.imgur.com/afAMU.png
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[18:18] <Laurenceb_> ^5hz is working at 57000baud XD
[18:19] <SpeedEvil> Laurenceb: is it a butterfly?
[18:19] <akaGoose> I'm in the uk and wanted to know if it's legally possible to use a mobile phone to track the balloon ?
[18:19] <Laurenceb_> thats deviation in m
[18:19] <SpeedEvil> Laurenceb: No - wait - a penguin wearing a batman outfit.
[18:19] <russss> akaGoose: legally, yes, there's no problem
[18:19] <Laurenceb_> from my gps, in my living room :P
[18:19] <SpeedEvil> LaurencebL Not terrible
[18:19] <Laurenceb_> i managed to get 57600 baud off the fsa03
[18:19] <russss> akaGoose: but technically we don't like it because they only work up to about 2km altitude
[18:19] <Laurenceb_> considering it was inside on the gnd floor
[18:19] <SpeedEvil> And less than 2km if you're lucky
[18:20] <jonsowman> akaGoose: legal but GSM coverage is sketcky above 5km at best
[18:20] <SpeedEvil> Laurenceb: That's not really bad at all.
[18:20] <Laurenceb_> there was a glitch on my usartrebaud code
[18:20] <akaGoose> Yeah I thought that might be the answer
[18:20] <jonsowman> akaGoose: we prefer RF telemetry really
[18:20] <Laurenceb_> cused it to send out some crap that made the fsa03 decide to forget the last message
[18:21] <Laurenceb_> so it wouldnt rebaud
[18:21] <SpeedEvil> LaurencebL So GPS + Mag + accel + gyro + pressure working?
[18:21] <SpeedEvil> And CPU of course.
[18:21] <akaGoose> I have a spare iPhone with a broken screen that I was going to use.. The cost of the rf equipment puts me off going for that method on the first try...
[18:21] <Laurenceb_> pressure not fully tested
[18:21] <Laurenceb_> it talks, but i havent got reound to trawling the forums for driver code
[18:21] <SpeedEvil> akaGoose: Also - compare cost of RF to cost of selling phone on ebay, or replacing the screen then doing the same.
[18:22] <Laurenceb_> theres no proper datasheet for it
[18:22] <jonsowman> akaGoose: the cost of the electronics is not as much as the balloon + helium + chute
[18:22] <akaGoose> The rf receivers are expensive thought right?
[18:22] <russss> the receivers are expensive but you can probably borrow one
[18:22] <jonsowman> akaGoose: that is true, you may well be able to borrow
[18:22] <Laurenceb_> gps is now set to 5hz, high dynamics, 57000 baud
[18:22] <jonsowman> russss got there first :)
[18:22] <Laurenceb_> should work up to 50KM too XD
[18:22] <akaGoose> :)
[18:22] <jonsowman> akaGoose: you only need an amateur set that can do SSB, which are very common
[18:22] <russss> and you will generally have the advantage of lots of other listeners too
[18:23] <akaGoose> yeah I've noticed that
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[18:24] <SpeedEvil> What's the most - I think I've seen about 10 receiving one payload.
[18:24] <SpeedEvil> Though of course not all the way down.
[18:25] <akaGoose> Can you recommend a cheap receiver that can do ssb?
[18:25] <Laurenceb_> ah sweet - gps velocity picks up my shaking it on desk
[18:25] <cuddykid> akaGoose: you could do just gsm on first flight, I think some others have done so on 1st flight... but try and get rf link.. would make chance of recovery better I would think
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[18:25] <jonsowman> akaGoose: the cheapest is usually the Yaesu FT-790r
[18:25] <cuddykid> Laurenceb_:woah! Have you got some military spec gps there?!
[18:25] <jonsowman> akaGoose: seen them go on ebay for ~£150
[18:25] <Laurenceb_> just an fsa03
[18:26] <fsphil> they can go as low as £60
[18:26] <Laurenceb_> but set to 5hz, high G
[18:26] <akaGoose> That's not too bad
[18:26] <jonsowman> fsphil: really? hmm
[18:26] <jonsowman> might have to grab one at that rate
[18:26] <fsphil> what mine cost jonsowman :)
[18:26] <jonsowman> oo
[18:26] <cuddykid> Laurenceb_: oh right!
[18:26] <akaGoose> I think I'll just stick the iPhone in my first flight..
[18:26] <jonsowman> well there you go then akaGoose, pretty cheap
[18:26] <fsphil> also there's the very untested funcube dongle, about £120
[18:26] <cuddykid> got by Ft-817 for around £150 iirc
[18:26] <jonsowman> cuddykid: where?!
[18:26] <fsphil> you got an 817 for £150?
[18:27] <cuddykid> ebay, yeah, wasn't in the best of conditions though
[18:27] <fsphil> ah
[18:27] <fsphil> but still
[18:27] <jonsowman> nonetheless, that's very cheap
[18:27] <cuddykid> had to ventilate it for a good few weeks, stank!
[18:27] <jonsowman> haha
[18:27] <akaGoose> How about 3d video of the flight? Has that been done yet?
[18:27] <cuddykid> but, yeah, perfectly working now :) lol
[18:27] <fsphil> smoker?
[18:27] <cuddykid> yeah
[18:27] <fsphil> I got an amiga that stank really bad because of that
[18:27] <cuddykid> smelt so bad
[18:28] <fsphil> was yellow on the inside too
[18:28] <cuddykid> eulgh
[18:28] <fsphil> yea - I got a new case for it
[18:28] <fsphil> still worth it for the 817
[18:29] <cuddykid> yeah, the mic on the ft-817 is in a nasty condition
[18:29] <akaGoose> That for your help guys.
[18:29] <cuddykid> indeed
[18:29] <fsphil> those things rarely go below £300
[18:29] <akaGoose> I'll probably be back at a later date... No doubt asking if anyone has seem my balloon!
[18:29] <fsphil> I've got mine listed on gumtree for £400 -- probably optimistic
[18:29] <fsphil> lol
[18:30] <cuddykid> I would get the exact price I bought it for, but for some reason ebay doesn't let you see back past a few months :@
[18:30] <fsphil> let us know how it goes either way akaGoose :)
[18:30] <akaGoose> Will do
[18:30] <akaGoose> Is anyone based in the south west ?
[18:31] <akaGoose> Was wondering about launch sites...
[18:31] <cuddykid> not unless you call worcester area south west :)
[18:32] <fsphil> well I'm north west, so one out of two :)
[18:32] <akaGoose> Heh, not really. Was thinking more like bristol
[18:32] <cuddykid> hmm.. closest I could think of would be cardiff...
[18:32] <cuddykid> can't remember the guy who's based there..
[18:33] <fsphil> Nigey
[18:33] <cuddykid> that's him!
[18:33] <akaGoose> Cool. Maybe I'll lurk around here and see if he turns up
[18:36] <cuddykid> yeah, he comes on quite often :)
[18:36] <fsphil> prediction for saturday still good: http://habhub.org/predict/#!/uuid=3fb98df577f88740bd7a4d1cb152dff6c86d6ad8
[18:36] <fsphil> *fingers crossed*
[18:36] <cuddykid> woohoo
[18:37] <SpeedEvil> fsphil: Great!
[18:37] <fsphil> would love that one, it lands not far from home :)
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[18:38] <fsphil> sunday is a bit far: http://habhub.org/predict/#!/uuid=11124f535ef4201c89a327b00aaa8af2b40697be
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[18:38] <cuddykid> going back in the paypal history to see how much this ft-817 was...
[18:38] <fsphil> I better make sure the chase team is free....
[18:40] <cuddykid> ahh, must have been deluded.. £268 is what I paid .. still good though
[18:40] <fsphil> lol
[18:40] <cuddykid> kidding myself I payed less lol
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[18:47] <SpeedEvil> fsphil: http://habhub.org/predict/#!/uuid=1292d3bb3940bf46c00bde0fcdcc8b5053b98afc
[18:47] <SpeedEvil> that would almost work for me.
[18:47] <SpeedEvil> (though I have no balloon)
[18:47] <SpeedEvil> fsphil: Possibly cutting it a little fine though.
[18:47] <fsphil> right on the coast
[18:48] <fsphil> well that assumes a perfect balloon
[18:48] <SpeedEvil> :)
[18:48] <fsphil> so you'd probably be fine
[18:48] <cuddykid> SpeedEvil, you're in a tricky situation there by the looks of it! sea to the east; mountains to the west and cities to the north and south!
[18:48] <SpeedEvil> yeah
[18:48] <SpeedEvil> And prevailing to the east much of the time.
[18:49] <cuddykid> yeah, I'm battling too with the prevailing eastly wind
[18:49] <eroomde> i'm about to go for a curry
[18:49] <eroomde> so wish me luck with tomorrow morning's battle with wind
[18:49] <SpeedEvil> Good luck!
[18:49] <cuddykid> have you had any luck from David Miller regarding the notam, could imagine he would be a bit awkward with Edinburgh right there
[18:49] <jonsowman> D:
[18:49] <cuddykid> haha eroomde
[18:50] <Laurenceb_> interesting
[18:50] <cuddykid> can't beat a good curry though
[18:50] <Laurenceb_> google maps has about 4m abslute error on my position
[18:50] <Laurenceb_> bing about 3
[18:50] <Laurenceb_> and OS maps put it about 5m out
[18:50] <SpeedEvil> Laurenceb: You need to integrate for at least several hours.
[18:50] <Laurenceb_> heh
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[18:51] <Laurenceb_> altitude matches OS to within a meter or so, but +-5m deviations
[18:51] <SpeedEvil> Laurenceb: From memory - you need to go out to 48h before the improvements mostly stop.
[18:51] <SpeedEvil> Though this was with an older GPS.
[18:52] <Laurenceb_> have you ever noticed accels picking up noise?
[18:52] <SpeedEvil> ?
[18:52] <Laurenceb_> my accel histogram seems a little odd on the y axis - vertical
[18:52] <SpeedEvil> sound?
[18:52] <Laurenceb_> or vibration from my laptop
[18:52] <SpeedEvil> quite plausible.
[18:53] <Laurenceb_> only a few lsb
[18:53] <Laurenceb_> if ive worked this out right at 100hz i only need +-50nm oscillation to cause the observed noise
[18:54] <Laurenceb_> its on the table next to my laptop
[18:55] <Laurenceb_> is it possible to hard drives to get an intermittent 'click of death' ?
[18:55] <Laurenceb_> as mine seems to be doing it every 20s or so
[18:56] <SpeedEvil> Laurenceb: It's possible it's parking.
[18:56] <fsphil> my last 'click of death' was an IBM drive, back when they still made them
[18:56] <Laurenceb_> this is a new lenovo
[18:56] <Laurenceb_> new= 2 months old
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[18:59] <SpeedEvil> linux?
[18:59] <SpeedEvil> smartctl -a /dev/sda
[18:59] <SpeedEvil> Look at ...
[18:59] Action: SpeedEvil forgets
[18:59] <SpeedEvil> head unload events?
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[18:59] <fsphil> (OT - for the radio guys) Anyone able to ID this QRM? http://www.youtube.com/watch?v=njwGYIxWS_M
[19:00] <SpeedEvil> Load Cycle Count
[19:04] <Laurenceb_> accel noise looks around 230 ug/sqrt(hz)
[19:04] <Laurenceb_> datasheet says 218, but i guess its in the real world
[19:04] <Laurenceb_> theres definately some vibration effecting it
[19:04] <SpeedEvil> Put it on some vibration isolating system.
[19:05] <Laurenceb_> yeah like foam :P
[19:05] <Laurenceb_> Couldn't find package smartctl
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[19:05] <SpeedEvil> Perhaps tie it to a bag of light gas?
[19:05] <SpeedEvil> Smartmonutils?
[19:05] <SpeedEvil> something like that
[19:05] <Laurenceb_> ah got it
[19:05] <SpeedEvil> I forget the package name
[19:06] <Laurenceb_> s/utils/tools
[19:08] <Laurenceb_> whats the important stuff?
[19:09] <SpeedEvil> smartctl -a /dev/sda - will dump the current status
[19:09] <SpeedEvil> SMART overall-health self-assessment test result: PASSED
[19:09] <SpeedEvil> up at the top
[19:09] <Laurenceb_> yes i see that
[19:09] <SpeedEvil> 193 Load_Cycle_Count 0x0032 151 151 000 Old_age Always - 149550
[19:09] <Laurenceb_> 240 Head_Flying_Hours 0x0032 100 100 000 Old_age Always - 486
[19:09] <Laurenceb_> SMART Error Log Version: 1
[19:09] <Laurenceb_> No Errors Logged
[19:09] <SpeedEvil> this says that the disk has done 150000 head loads/unloads
[19:10] <Laurenceb_> head flying is what would show up if it had click of death?
[19:10] <SpeedEvil> Which means that I need to work out how to tell it not to suspend
[19:10] <SpeedEvil> I mean - I need to tell it not to spin down the disk on idle
[19:10] <SpeedEvil> When on wall power. Or I need to fix syslog so it's not pinging the disk so often.
[19:15] <Laurenceb_> the itg-3200 appears to have 5 times lower noise
[19:16] <Laurenceb_> than datasheet
[19:16] <Laurenceb_> mine is as good as the mpu-6050
[19:16] <Laurenceb_> 0.005 dps/sqrt(Hz)
[19:18] <SpeedEvil> Interesting!
[19:18] <SpeedEvil> I'd be especially interested on how it stacks up if you integrate over long periods.
[19:18] <Laurenceb_> and the magno is 2.5 time better than freescale noise wise
[19:18] <SpeedEvil> I suppose tempco is annoying
[19:18] <Laurenceb_> pretty good stuff
[19:18] <Laurenceb_> yes
[19:18] <Laurenceb_> the openpilot ekf has gyro bias built in tho :P
[19:19] <cuddykid> hmm.. anyone know whether iPhone web apps can background?
[19:19] <SpeedEvil> How long before you're - say - 5 degrees out, forex.
[19:19] <jonsowman> cuddykid: don't think so
[19:19] <cuddykid> that's a shame
[19:20] <cuddykid> might have had a stab at creating a web app tracker for chase car
[19:20] <Laurenceb_> SpeedEvil: theory would say 2 weeks
[19:20] <Laurenceb_> but...
[19:20] <Laurenceb_> (5/0.005)^2 seconds
[19:21] <Laurenceb_> as you approach zero frequency itll tend to 1/f noise
[19:21] <Laurenceb_> theres always that spinning imu trick
[19:23] Action: SpeedEvil was idly wondering if it could guyrocompass.
[19:23] <SpeedEvil> Gyro.
[19:24] <cuddykid> so impressed how close wifi locating is
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[20:03] <SamSilver> bbl
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[20:06] <Laurenceb_> hmm what to do next...
[20:06] <Laurenceb_> i should probably get the imu cal code running in octave
[20:10] <Laurenceb_> https://github.com/Laurenceb/Dactyl/blob/master/Archived/Test_data/test2.dat
[20:11] <Laurenceb_> lat,long,alt,vnorth,veast,vup, accelx,y,z,gyrox,y,z,magnox,y,z
[20:11] <Laurenceb_> the gps velocity is interesting - seems to pick up me shaking it
[20:17] <SpeedEvil> :)
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[20:23] <Laurenceb_> the gps gets a bit toasty after a few minutes, but smps is barely warm
[20:24] <Laurenceb_> would be interesting to try increasing the output rate beyond 5hz
[20:28] <BrainDamage> how much are the components worth atm?
[20:28] <BrainDamage> gps price separately please
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[20:33] <Laurenceb_> BrainDamage: on my pcb? about £100
[20:33] <Laurenceb_> gps was £27 or so
[20:34] <Laurenceb_> some things you could lose and save a lot, e.g. pitot tube -£30
[20:34] <BrainDamage> I get a "?" before the value
[20:35] <BrainDamage> what's the currency?
[20:35] <Laurenceb_> UKP
[20:35] <Laurenceb_> sorry - UK pounds
[20:35] <BrainDamage> perhaps you're not sending utf-8? I've seen quite few people that their bouncer craps on utf-8 :(
[20:36] <BrainDamage> thanks, I might experiment a bit in the future with nav boards, and wanted to know a rough price
[20:37] <Laurenceb_> probably UKP60 for something basic
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[20:49] <eroomde> what's up
[20:50] <Laurenceb_> headache
[20:50] <eroomde> what's up that's interesting
[20:50] <Laurenceb_> i have a headache :P
[20:50] <Laurenceb_> should probably eat some food XD
[20:50] <eroomde> polycarbonate1: I like your name
[20:51] <eroomde> but why?
[20:51] <Laurenceb_> eroomde: have you ever played about with IMU calibration?
[20:51] <eroomde> polycarbonate seems to only be interesting to the battlebots/robotwars end of the hobbyist crowd
[20:51] <eroomde> Laurenceb_: yes. it's very un fun
[20:51] <Laurenceb_> heh as im finding
[20:52] <Laurenceb_> i had a brainwave that i could use the angle between G and B as another thing to train my fitter onto
[20:52] <eroomde> apparently the reason xsens can charge you $5000 for $200 of sensors in an orange box is purely because of the value-add of their big calibration rigs
[20:52] <Laurenceb_> but the maths required to make this happen are ... hard
[20:52] <eroomde> they claim...
[20:53] <Laurenceb_> well ive trying to do cal where you can just chuck it about on the desk
[20:53] <Laurenceb_> *im
[20:53] <Laurenceb_> and it uses arbitrary points in conjunction with the motion inbetween
[20:54] <Laurenceb_> so far ive got it working for cross axis, bias and gain on a single 3 axis sensor using vector lenght normalisation
[20:55] <Laurenceb_> so G is always magnitude 9.98m/s^2 or whatever
[20:55] <Laurenceb_> seems to work quite well, but its only about 30% of the way to what im aiming for :S
[20:56] <SpeedEvil> What's it doing wrong?
[20:56] <eroomde> make a hypersurface lookup table
[20:56] <SpeedEvil> No fair!
[20:56] <SpeedEvil> I was about to say huypersurface
[20:56] <Laurenceb_> heh
[20:56] <eroomde> you gotta be fast round these parts kiddo
[20:57] <russss> hypersurface eh
[20:57] <Laurenceb_> im using newton raphson with matrix pseudoinverse, works really well
[20:57] <SpeedEvil> Laurenceb: By 30% - you mean the other three sensors?
[20:57] <Laurenceb_> no the other stuff - sensor misalignment, gyro correction
[20:57] <SpeedEvil> ah
[20:58] <Laurenceb_> then a final step where you optically align it with a distant landmark
[20:59] <Laurenceb_> ive got the magno down to a few milliradians pointing error
[20:59] <Laurenceb_> i think... its kind of hard to estimate
[21:00] <SpeedEvil> Hmm.
[21:00] <SpeedEvil> I suppose with the GPS now working - all you need is to glue it to a battery + stick - and you can do the distant landmark thing.
[21:01] <Laurenceb_> yeah ive got a really high quality spirit level im going to use
[21:02] <Laurenceb_> align table so its flat and then point it at landmark
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[21:10] <russss> heh, it's amusing when calibrating your IMU comes down to a really high quality spirit level.
[21:13] <Laurenceb_> that i found in my grandads loft :P
[21:14] <MrCraig> night night. *waves*
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[21:15] <SpeedEvil> :)
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[21:57] <natrium42> does somebody need an iridium phone? :)
[21:57] <natrium42> http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=290570089446
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[22:00] <Upu> Thuraya's are cheaper :)
[22:01] <SpeedEvil> natrium42: I want a couple of feet of 4" Iridium/rhenium bar.
[22:01] <SpeedEvil> But...
[22:02] <BrainDamage> I bet the price would be similar
[22:02] <SpeedEvil> Well - no.
[22:02] <SpeedEvil> Ir/Rh bar is regrettably expensive.
[22:02] <SpeedEvil> At least until my asteroid comes in.
[22:03] <BrainDamage> you create some supervillain grade machinery to catch asteroids and have them fall to earth?
[22:03] <natrium42> Upu: thuraya doesn't work everywhere?
[22:04] <natrium42> -?+.
[22:06] <Upu> no idea
[22:06] <Upu> they were selling them at Heathrow T5
[22:06] <natrium42> well, it doesn't
[22:06] <natrium42> only in europe, middle east and africa
[22:06] <Upu> http://www.thuraya.com/coverage-map
[22:07] <natrium42> no americas
[22:08] <Upu> yeah
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[00:00] --- Tue May 31 2011