[00:04] LazyLeopard (~irc-clien@chocky.demon.co.uk) left irc: Quit: Bye
[00:10] fsphil (~phil@2001:470:1f09:483:21f:c6ff:fe44:b25b) left irc: Quit: Leaving
[00:13] <SpeedEvil_> ah - bootdelay flag
[00:28] AndyW (~andy@host213-121-17-192.webport-cl2-hg5.ilford.mdip.bt.net) left irc: Quit: Ex-Chat
[00:29] Laurenceb (~laurence@host86-136-234-181.range86-136.btcentralplus.com) left irc: Ping timeout: 276 seconds
[00:52] juxta (fourtytwo@ppp118-210-3-11.lns20.adl2.internode.on.net) joined #highaltitude.
[01:02] Xenion (~robert@p579FCD7B.dip.t-dialin.net) joined #highaltitude.
[01:05] RobertB (~robert@p579FCFF2.dip.t-dialin.net) left irc: Ping timeout: 276 seconds
[01:28] GeekShadow (~Antoine@reactos/tester/GeekShadow) left irc: Quit: The cake is a lie !
[01:39] SiC (~SiC@5ac3d58f.bb.sky.com) left irc:
[03:03] darknesslord_ (~darknessl@ left irc: Quit: darknesslord_
[04:55] jasonb (~jasonb@adsl-66-124-73-250.dsl.sntc01.pacbell.net) joined #highaltitude.
[05:09] Jasperw (~jasperw@ left irc: Quit: Leaving.
[05:24] natrium42 (~natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) joined #highaltitude.
[05:46] <natrium42> ping rjharrison
[05:46] darknesslord_ (~darknessl@ joined #highaltitude.
[05:58] tty1 (~tty1@unaffiliated/electric-penguin/x-9957366) left irc: Ping timeout: 245 seconds
[07:24] darknesslord_ (~darknessl@ left irc: Quit: can i haz interlolz?
[07:44] natrium42 (~natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) left irc: Quit: Leaving
[07:48] Simon-MPFH (~simon@phantom.mpfh.co.uk) joined #highaltitude.
[08:32] simon_ (~simon@phantom.mpfh.co.uk) joined #highaltitude.
[08:32] Jasperw (~jasperw@ joined #highaltitude.
[08:32] Nick change: simon_ -> Guest72118
[08:44] Jasperw (~jasperw@ left irc: Quit: Leaving.
[08:52] Futurity (~futurity@cpc7-cmbg15-2-0-cust14.know.cable.virginmedia.com) joined #highaltitude.
[08:55] <Futurity> Hi
[08:59] Futurity (~futurity@cpc7-cmbg15-2-0-cust14.know.cable.virginmedia.com) left irc: Quit: Colloquy for iPhone - http://colloquy.mobi
[09:08] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude.
[09:49] DanielRichman (~DanielRic@unaffiliated/danielrichman) joined #highaltitude.
[10:03] <Xenion> http://bit.ly/cZFVlo nice hack :-)
[10:13] jcoxon (~jcoxon@host81-151-74-214.range81-151.btcentralplus.com) joined #highaltitude.
[10:20] Nick change: SpeedEvil_ -> SpeedEvil
[10:31] DanielRichman (~DanielRic@unaffiliated/danielrichman) left irc: Remote host closed the connection
[10:31] junderwood (~John@adsl.jcu.me.uk) joined #highaltitude.
[10:58] Jasperw (~jasperw@ joined #highaltitude.
[11:36] rjharrison (~rharrison@ left irc:
[11:40] LazyLeopard (~irc-clien@chocky.demon.co.uk) left irc: Quit: Bye
[11:54] GeekShadow (~Antoine@reactos/tester/GeekShadow) joined #highaltitude.
[12:20] <earthshine> where is the hack ?
[12:22] <Xenion> earthshine, right and leftern side from your nose
[12:38] Jasperw (~jasperw@ left irc: Quit: Leaving.
[13:08] <earthshine> I see an article about 3D imaging - I don't see any hacks
[13:39] fsphil (~phil@2001:470:1f09:483:21f:c6ff:fe44:b25b) joined #highaltitude.
[13:44] rjharrison (~rharrison@ joined #highaltitude.
[13:47] SpeedEvil (~Speedevil@tor/regular/SpeedEvil) left irc: Ping timeout: 258 seconds
[13:48] RobertB (~robert@p579FCAED.dip.t-dialin.net) joined #highaltitude.
[13:50] Xenion (~robert@p579FCD7B.dip.t-dialin.net) left irc: Ping timeout: 276 seconds
[13:59] SpeedEvil (~Speedevil@tor/regular/SpeedEvil) joined #highaltitude.
[14:00] <fsphil> ping jcoxon
[14:21] Upu (~Upu@ubn.upuaut.net) joined #highaltitude.
[14:22] Upu (~Upu@ubn.upuaut.net) left irc: Client Quit
[14:22] Upu (~Upu@ubn.upuaut.net) joined #highaltitude.
[14:33] earthshine_ (~earthshin@cpc3-orpi1-0-0-cust867.bmly.cable.ntl.com) joined #highaltitude.
[15:11] tty1 (~tty1@unaffiliated/electric-penguin/x-9957366) joined #highaltitude.
[15:18] earthshine_ (~earthshin@cpc3-orpi1-0-0-cust867.bmly.cable.ntl.com) left irc: Quit: Bye! www.EarthshineDesign.co.uk
[15:22] <fsphil> brb
[15:37] jonsowman (~jonsowman@sheeva.hexoc.com) left irc: Quit: "Probably didn't mean to do that..."
[15:46] jonsowman (~jonsowman@sheeva.hexoc.com) joined #highaltitude.
[15:47] jonsowman (~jonsowman@sheeva.hexoc.com) left irc: Client Quit
[15:48] jonsowman (~jonsowman@sheeva.hexoc.com) joined #highaltitude.
[15:59] edmoore (~ed@pluto.trinhall.cam.ac.uk) joined #highaltitude.
[16:34] edmoore_ (~ed@pluto.trinhall.cam.ac.uk) joined #highaltitude.
[16:34] edmoore (~ed@pluto.trinhall.cam.ac.uk) left irc: Read error: Connection reset by peer
[16:34] Nick change: edmoore_ -> edmoore
[16:37] RealPerson (~UserName@ joined #highaltitude.
[16:39] RealPerson (UserName@ left #highaltitude.
[16:41] GW8RAK (~chatzilla@client-82-27-15-175.pete.adsl.virginmedia.com) joined #highaltitude.
[17:09] earthshine_ (~earthshin@cpc3-orpi1-0-0-cust867.bmly.cable.ntl.com) joined #highaltitude.
[17:09] <earthshine_> anybody online?
[17:09] <Randomskk> hi
[17:10] <earthshine_> Hi
[17:10] <earthshine_> QUestion about the GPS strings
[17:10] <earthshine_> When outputting the lat and long, does it have to be a set number of digits?
[17:10] <Randomskk> don't think so
[17:10] <Randomskk> as in the NMEA data?
[17:11] <earthshine_> yeah
[17:11] GW8RAK (~chatzilla@client-82-27-15-175.pete.adsl.virginmedia.com) left irc: Ping timeout: 265 seconds
[17:12] <Randomskk> I don't believe it's set
[17:12] <earthshine_> ok
[17:12] <earthshine_> also......
[17:13] <earthshine_> What goes into "Other?" in the string or does it matter ?
[17:13] <Randomskk> but may or may not stay the same for a specific gps unit
[17:13] <Randomskk> in the UKHAS string?
[17:13] <earthshine_> yeah
[17:13] <Randomskk> any payload specific data you happen to be recording and want passed back
[17:13] <Randomskk> doesn't really matter in other words
[17:14] <earthshine_> and that can be more than one set of data?
[17:14] <earthshine_> So anything after the altitude comma is valid?
[17:16] <fsphil> whatever parses the data might not like extra commas within the custom data?
[17:16] <sbasuita> fsphil, extra commas are encouraged
[17:16] <Randomskk> refer to http://www.robertharrison.org/icarus/wordpress/hardware/xml-format-for-payloads-and-chase-cars/
[17:16] <Randomskk> uh
[17:16] <Randomskk> no
[17:16] <Randomskk> don't refer to that at all
[17:16] <fsphil> hehe
[17:17] <fsphil> still interesting though :p
[17:17] <Randomskk> http://ukhas.org.uk/communication:protocol
[17:17] <earthshine_> ahh
[17:18] <earthshine_> Where did you find that? I couldn't find a link to that
[17:18] <fsphil> hehe, I missed that too
[17:18] <Randomskk> buried in the wiki
[17:18] <earthshine_> well and truly buried
[17:18] <earthshine_> thanks
[17:18] <fsphil> is it possible to test things on the tracker?
[17:19] <fsphil> without messing it up that is
[17:19] <Randomskk> start -> guides -> general -> projects -> communication -> radio_modules -> tracking_guide -> protocol
[17:19] <Randomskk> hmm
[17:19] <Randomskk> that is the trace but
[17:19] <Randomskk> I'm not convinced
[17:20] <Randomskk> I think opening lots of tabs confused it a lot
[17:20] <Randomskk> start -> guides -> communication -> UKHAS Standard Protocol
[17:20] <Randomskk> there
[17:21] <earthshine_> got it
[17:21] <earthshine_> thanks
[17:21] <fsphil> is there a reason why the nmea data uses minutes instead of decimal degrees?
[17:21] <edmoore> easier for humans i guess
[17:22] <edmoore> 1 arc min = 1 nautical mile etc
[17:22] <fsphil> aah, that's pretty useful then
[17:23] <earthshine_> i thought an error correction code was also sent with the string?
[17:23] <edmoore> there's a checksum
[17:23] <Randomskk> earthshine_: can be sent at the end, optional but highly encouraged
[17:23] <edmoore> but no error correction
[17:23] <Randomskk> you can do an xor over all bytes and encode that as two hexadecimal characters at the end
[17:23] <Randomskk> or a crc16 over the message and that gives you two bytes and is better
[17:24] <Randomskk> avr has crc libraries so it's just like three lines of code
[17:24] <edmoore> sorry to be anal, that's definitely not error correction.
[17:24] <earthshine_> so just send 2 bytes before the newline at the end of the string ?
[17:24] <Randomskk> yea, checksum.
[17:24] <fsphil> all bytes between the $ and the *
[17:24] <fsphil> though the code I found on the wiki ignores all $'s
[17:25] <fsphil> http://ukhas.org.uk/projects:dlistener
[17:26] <Randomskk> http://pastie.org/914260
[17:26] <earthshine_> OK so an asterisk needs to be added at theend THEN the checksum
[17:26] <Randomskk> so you make up your contents, like $$NAME,data,data,data,data,data
[17:27] <Randomskk> feed that into the checksum function which should ignore the $$
[17:27] <Randomskk> and then the checksum gives you two bytes
[17:27] <earthshine_> ok
[17:27] <earthshine_> got it
[17:27] <Randomskk> which you append to the string as * and then four hex characters
[17:27] <Randomskk> that pastie link I gave you is what we used on ferret
[17:27] <earthshine_> is extra data (temp, pressure,etc.) advised or is it better to keep the string short ?
[17:28] <fsphil> should I use that 2-byte crc over the one in the link above?
[17:28] DanielRichman (~DanielRic@unaffiliated/danielrichman) joined #highaltitude.
[17:28] <Randomskk> fsphil: generally yes
[17:28] <fsphil> k, thanks
[17:28] <Randomskk> crc is less likely to give a false positive
[17:28] <Randomskk> earthshine_: whatever data you want to send really
[17:28] <Randomskk> shorter strings are more likely to succeed
[17:29] <fsphil> has anyone flown since dl-fldigi was updated? the new rtty modem seems to be doing a better job in my tests
[17:29] <Randomskk> don't think so
[17:29] <Randomskk> wx has been terribad recetly
[17:29] <Randomskk> recently*
[17:30] <fsphil> be interesting to see if it helps in actual use
[17:30] <Randomskk> yea
[17:30] <fsphil> the old version had a lot of trouble decoding the 300 baud data
[17:30] <Randomskk> it is super frustrating to be able to /hear/ the rtty yourself but fldigi not decode it
[17:30] <fsphil> i bet
[17:31] <fsphil> bbl
[17:37] jasonb (~jasonb@adsl-66-124-73-250.dsl.sntc01.pacbell.net) left irc: Ping timeout: 252 seconds
[17:38] natrium42 (~natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) joined #highaltitude.
[17:52] natrium42 (~natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) left irc: Quit: Leaving
[17:54] GW8RAK (~chatzilla@client-82-27-15-175.pete.adsl.virginmedia.com) joined #highaltitude.
[17:56] DanielRichman (~DanielRic@unaffiliated/danielrichman) left irc: Read error: Connection reset by peer
[17:58] DanielRichman (~DanielRic@unaffiliated/danielrichman) joined #highaltitude.
[18:06] darknesslord_ (~darknessl@ joined #highaltitude.
[18:14] smealum (~smealum@ left irc: Ping timeout: 252 seconds
[18:15] smealum (~smealum@ joined #highaltitude.
[18:27] SpeedEvil1 (1000@tor/regular/SpeedEvil) joined #highaltitude.
[18:40] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude.
[18:42] jcoxon (~jcoxon@host81-151-74-214.range81-151.btcentralplus.com) left irc: Quit: Leaving
[18:47] <earthshine_> ping juxta
[18:51] <earthshine_> IS it just the GPGGA string that I need?
[18:52] <earthshine_> I can turn the others off in the GPS config right?
[18:52] <Randomskk> gpgga is sufficient
[18:53] <earthshine_> cheers
[18:55] GW8RAK (~chatzilla@client-82-27-15-175.pete.adsl.virginmedia.com) left irc: Ping timeout: 265 seconds
[18:59] jasonb (~jasonb@m485336d0.tmodns.net) joined #highaltitude.
[19:04] Hiena (~Hiena@ joined #highaltitude.
[19:31] jasonb (~jasonb@m485336d0.tmodns.net) left irc: Ping timeout: 260 seconds
[19:41] jasonb (~jasonb@m385336d0.tmodns.net) joined #highaltitude.
[19:45] SpeedEvil (~Speedevil@tor/regular/SpeedEvil) left irc: Disconnected by services
[19:45] Nick change: SpeedEvil1 -> SpeedEvil
[19:45] SpeedEvil_ (~Speedevil@tor/regular/SpeedEvil) joined #highaltitude.
[19:46] SpeedEvil (1000@tor/regular/SpeedEvil) left irc: Remote host closed the connection
[19:57] SpeedEvil (1000@tor/regular/SpeedEvil) joined #highaltitude.
[20:01] darknesslord_ (~darknessl@ left irc: Quit: can i haz interlolz?
[20:06] SpeedEvil (1000@tor/regular/SpeedEvil) left irc: Ping timeout: 276 seconds
[20:09] jasonb (~jasonb@m385336d0.tmodns.net) left irc: Read error: Connection reset by peer
[20:13] Jasperw (~jasperw@ joined #highaltitude.
[20:29] SpeedEvil (1000@tor/regular/SpeedEvil) joined #highaltitude.
[20:40] Jasperw (~jasperw@ left irc: Quit: Leaving.
[20:47] Laurenceb (~laurence@host86-136-234-181.range86-136.btcentralplus.com) joined #highaltitude.
[20:48] Lunar_Lander (~lunar_lan@p54885C94.dip.t-dialin.net) joined #highaltitude.
[20:48] <Lunar_Lander> hello!
[20:49] <DanielRichman> poke fsphil
[20:49] <fsphil> ooh tickles
[20:49] <DanielRichman> you and your libjpeg :(
[20:50] <fsphil> am I getting in trouble again?
[20:50] <Laurenceb> hi all
[20:50] <DanielRichman> nah it's not your fault. Hold on, I think I have a genuine question for you though
[20:50] <Laurenceb> SpeedEvil: your n900 accel, could you run another test?
[20:51] <Lunar_Lander> hello
[20:51] <DanielRichman> fsphil, OK! http://github.com/jamescoxon/dl-fldigi/commit/46d622da7a973c56f94bd6e0d23787de5e3a6da6
[20:51] <DanielRichman> IN order to make your stuff build you added the files to Makefile.am
[20:52] <DanielRichman> and #included your libjpeg header files
[20:52] <DanielRichman> my question: how do you get gcc to link it with libjpeg?
[20:52] <fsphil> yep
[20:52] <DanielRichman> which bit tells it to
[20:52] <fsphil> libjpeg is already being linked, it's used elsewhere
[20:52] <DanielRichman> not by fldigi
[20:52] <DanielRichman> I can't find it
[20:52] <DanielRichman> $ make -n | grep jpeg
[20:52] ProjectCirrus (~rhspm@host86-157-45-176.range86-157.btcentralplus.com) joined #highaltitude.
[20:52] <fsphil> hmm.. when I first built fldigi it wouldn't compile without it
[20:52] <DanielRichman> Ok. That's weird
[20:53] <SpeedEvil> Laurenceb: of
[20:53] <fsphil> one sec and I'll remove the devel package and rebuild it, see where it breaks
[20:53] <SpeedEvil> ?
[20:53] <Laurenceb> ok, so I low pass filtered the data
[20:53] <Laurenceb> and got the residual down to about 0.45degrees rms
[20:53] <DanielRichman> fsphil, well it won't build with your modifications, are you saying that vanilla fldigi requires jpeg?
[20:53] <Laurenceb> which is quite good - Geckosenator got asbout 0.35
[20:53] <Laurenceb> but the hand noise is still quite bad
[20:54] <SpeedEvil> Laurenceb: what sort of movements?
[20:54] <Laurenceb> so I was thnking - if its propped in various positions
[20:54] <Laurenceb> then averaged over 4 seconds or so
[20:54] <SpeedEvil> k
[20:54] <fsphil> the first version I tried did DanielRichman - but it may have been removed
[20:54] <Laurenceb> so if the phone can be propped on its sides thats 6 positions
[20:54] <DanielRichman> fsphil, indeed vanilla fldigi does appear to be linked with libjpeg
[20:54] <DanielRichman> daniel@desktop:git$ ldd src/fldigi | grep jpeg
[20:54] <DanielRichman> libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x00007f79de76b000)
[20:54] <DanielRichman> daniel@desktop:git$ ldd `which fldigi` | grep jpeg
[20:54] <DanielRichman> libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x00007f58a3da0000)
[20:54] <fsphil> I'm rebuilding it now
[20:54] <SpeedEvil> Laurenceb: ok - will do in a bit
[20:54] <Laurenceb> then maybe on something to get it at 45 degrees for another 12 or so positions
[20:54] <Laurenceb> thanks
[20:54] <Laurenceb> whats the sameple rate btw?
[20:55] <DanielRichman> However, fsphil
[20:55] <DanielRichman> daniel@desktop:git$ grep jpeg . -Rl
[20:55] <DanielRichman> ./ChangeLog.old
[20:55] <DanielRichman> ./INSTALL
[20:55] <DanielRichman> ./src/include/ssdv_rx.h
[20:55] <DanielRichman> ./src/config.h.in~
[20:55] <SpeedEvil> 100 or 400hz
[20:55] <DanielRichman> ./src/ssdv/ssdv_rx.cxx
[20:55] <DanielRichman> ./src/mfsk/mfsk-pic.cxx
[20:55] <DanielRichman> fsphil, does it even use it:?
[20:55] <SpeedEvil> I need to work out how I got it sampling again
[20:55] <fsphil> mfsk uses it
[20:55] <Laurenceb> I'm quite impressed with the results I'm getting now - nonlinearity looks to be below 0.5%, so as cross axis calibrates out, its as good as freescale
[20:56] <fsphil> DanielRichman, mfsk has an image transfer window, it may be using libjpeg
[20:56] <Laurenceb> looks like linear cross axis - 2.5% between X and Y, and 0.5% between X and Z and the same between Y and Z
[20:56] <DanielRichman> fsphil, "jpeg" is only mentioned once in that file:
[20:56] <DanielRichman> const char *fn =
[20:56] <DanielRichman> FSEL::select(_("Load image file"), "Portable Network Graphics\t*.png\n"
[20:56] <DanielRichman> "Independent JPEG Group\t*.{jpg,jif,jpeg,jpe}\n"
[20:56] <DanielRichman> "Graphics Interchange Format\t*.gif", PicsDir.c_str());
[20:56] <DanielRichman> fsphil, I think i've worked out where jpeg gets linked from though:
[20:57] <Lunar_Lander> hi SpeedEvil fsphil
[20:58] <fsphil> so it's linked but not used?
[20:58] <fsphil> hiya Lunar_Lander
[20:58] <Lunar_Lander> how's life?
[20:58] <DanielRichman> fsphil, /usr/lib/libfltk_images.so.1.1 pulls it in because FLTK uses it
[20:59] <DanielRichman> fsphil, so at runtime I guess the jpeg references get resolved anyway
[21:00] <DanielRichman> fsphil, but really they should be resolved at build time: we're building statically for win32 and it complains. I think i've found it though now
[21:03] <ProjectCirrus> im back!
[21:04] <ProjectCirrus> hey phil, is the module causing you headaches?
[21:05] <fsphil> DanielRichman, autotools is adding -ljpeg to the makefile, why it worked here
[21:05] <fsphil> g'day ProjectCirrus, actually that bit's going well
[21:06] <ProjectCirrus> good.... you still ok for launch?
[21:07] <fsphil> should be ok, the plan still the same?
[21:08] <ProjectCirrus> well, launch now looks like friday.... if thats ok
[21:08] <ProjectCirrus> it suits my "ground team" better
[21:10] <Lunar_Lander> hi ProjectCirrus
[21:10] <ProjectCirrus> and the long range predictions are favourable
[21:10] <fsphil> any particular site?
[21:10] <ProjectCirrus> probably greggan
[21:10] <Lunar_Lander> congratulations that you are ready for launch
[21:10] <ProjectCirrus> lol
[21:10] <ProjectCirrus> not quite
[21:10] <ProjectCirrus> yet
[21:10] <ProjectCirrus> close
[21:11] <ProjectCirrus> The CAA still haven't confirmed although they seemed supportive so i'll ring tomorrow
[21:11] Futurity (~Futurity@cpc7-cmbg15-2-0-cust14.know.cable.virginmedia.com) joined #highaltitude.
[21:12] <ProjectCirrus> the weather should be ideal though
[21:12] <ProjectCirrus> and the camera and telemetry are working
[21:13] <Lunar_Lander> cool
[21:14] <fsphil> hope the weather is as good as this weekend
[21:15] <Futurity> Hi, Any fellow FT-790R users managed to get away with using Ni-MH batteries in their rigs?
[21:16] <fsphil> ProjectCirrus, what's the projected flight path? which direction?
[21:16] <ProjectCirrus> from memory earlier it should be approx south east
[21:16] <ProjectCirrus> range <47 miles
[21:17] <ProjectCirrus> got to pm you about details anyway
[21:17] <fsphil> hopefully not too far east :)
[21:19] <SpeedEvil> Laurenceb: http://www.mauve.plus.com/log and log1 - should be up in a couple of mins.
[21:19] <SpeedEvil> Seconds, ignore, x,y,z
[21:19] <Laurenceb> ah, I was going to ask about that
[21:19] <SpeedEvil> log has lots more data than log1 - several orientations in several planes
[21:19] <Laurenceb> having time is good
[21:19] <Laurenceb> but rested for several seconds in each orientation?
[21:20] <SpeedEvil> on the first one, yes
[21:20] <Laurenceb> I'll write a script to find and average the periods where its put down
[21:20] <Laurenceb> thanks
[21:20] <SpeedEvil> second was a bit quicker
[21:20] <SpeedEvil> but may be enough - less data
[21:20] <DanielRichman> fsphil, is it?
[21:20] <DanielRichman> fsphil, I can't see where it is
[21:20] <Laurenceb> 4 seconds should get the noise down to <0.1mg RMS
[21:21] <Laurenceb> so thats 2 orders of magnitude better than it converges to atm
[21:22] <fsphil> DanielRichman, it's in src/Makefile here. Not present in Makefile.im or Makefile.am
[21:23] <SpeedEvil> Oh - the first might have some 120Hz noise
[21:23] <DanielRichman> fsphil, which git head are you using?
[21:23] <SpeedEvil> actually - no - I deleted that
[21:24] <fsphil> DanielRichman, should be any of them
[21:24] <Laurenceb> how come?
[21:24] smealum (~smealum@ left irc: Ping timeout: 265 seconds
[21:24] <Laurenceb> - the 120hz
[21:24] <SpeedEvil> Laurenceb: resting on disk cupboard.
[21:25] <DanielRichman> fsphil, well -ljpeg features in my latest but that's because my last comment added it. If i comment that out, it's not there
[21:25] <DanielRichman> fsphil, in any other one I can't find it
[21:25] smealum (~smealum@ joined #highaltitude.
[21:26] <fsphil> DanielRichman, that's ... odd. it's not mentioned anywhere else in the source so I don't know why autotools is adding it
[21:27] <DanielRichman> fsphil, maybe you added it manually? what happens if you git clean -fxd, autoreconf and configure?
[21:28] <fsphil> DanielRichman, just tried the latest fldigi sources and it gets added there too
[21:28] <fsphil> it won't build without libjpeg devel installed
[21:28] <DanielRichman> Yeah but does it add -ljpeg?
[21:29] <DanielRichman> I know it won't build without libjpeg, but I'm wondering if this ljpeg gets added
[21:29] <fsphil> yep
[21:29] <DanielRichman> <-- confused.
[21:29] <fsphil> yep, know the feeling lol
[21:29] <fsphil> could be a fedora oddity
[21:29] <DanielRichman> but command line flags don't magic out of nowhere
[21:30] <DanielRichman> Makefile is generated by ./configure, from Makefile.am
[21:30] <DanielRichman> no, Makefile.in
[21:30] <DanielRichman> That's a bash script; meant to behave the same on every system
[21:30] <fsphil> yep -- and neither of them have the jpeg reference
[21:30] Simon-MPFH (~simon@phantom.mpfh.co.uk) left irc: Quit: Leaving
[21:30] Guest72118 (~simon@phantom.mpfh.co.uk) left irc: Read error: Connection reset by peer
[21:33] <DanielRichman> fsphil, I checked out git://git.berlios.de/fldigi
[21:33] <DanielRichman> $ autoreconf -vfi
[21:33] <DanielRichman> $ ./configure
[21:33] smealum (~smealum@ left irc: Ping timeout: 276 seconds
[21:34] <DanielRichman> $ grep jpeg . -Rl
[21:34] <DanielRichman> and got : ./ChangeLog.old ./INSTALL (mentions the requirement) and ./src/mfsk/mfsk-pic.cxx (where the string "jpeg" features inside a string literal, not as a token)
[21:34] <fsphil> DanielRichman, it's being pulled in from another package. trying to ID it now
[21:34] <DanielRichman> fsphil, fltk
[21:34] <DanielRichman> fsphil, fltk is the reason that libjpeg gets linked
[21:35] <DanielRichman> and hence (I guess) the reason that ld doesn't complain, because it finds something to satisfy its need for libjpeg
[21:35] <DanielRichman> however when compiling mingw32 we have to compile with static linking, which means that fltk doesn't pull in libjpeg at the fldigi linking stage (I guess again)
[21:35] <DanielRichman> so it complains bitterly
[21:36] LazyLeopard (~irc-clien@chocky.demon.co.uk) left irc: Remote host closed the connection
[21:36] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude.
[21:37] <fsphil> yep, spot on: $ fltk-config --ldflags --use-images
[21:37] <fsphil> -lfltk_images -lpng -lz -ljpeg -lfltk
[21:39] smealum (~smealum@ joined #highaltitude.
[21:39] <SpeedEvil> Laurenceb: typically several datapoints in a row may be identical - I have not uniqued them.
[21:40] <SpeedEvil> Laurenceb: I think many are in fact from the same sample output
[21:40] <Laurenceb> oh
[21:41] <Laurenceb> shouldnt matter too much
[21:41] <Laurenceb> is it a time squew issue with the driver?
[21:41] <SpeedEvil> yes - I may sample several times when the driver has only sampled once - it is in 400hz mode - but I'm unsure if there are gaps.
[21:41] <Laurenceb> got it
[21:42] <Laurenceb> shouldnt matter - I'm just writing a script to identify the stationary periods and avergae them
[21:42] Futurity (~Futurity@cpc7-cmbg15-2-0-cust14.know.cable.virginmedia.com) left irc: Quit: Futurity
[21:43] <Laurenceb> atm investigating the cross axis results actually - if I turn off the cross axis and run a fit it produces almost the same results
[21:43] <Laurenceb> one of the biases shifts by 2mg thats about it
[21:43] <Laurenceb> so I'm fairly convinced its producing fairly valid results
[21:44] <SpeedEvil> also - log2.gz
[21:44] <SpeedEvil> a longer but less systematic test
[21:44] <SpeedEvil> basically just turning it to a randomly selected orientation when I remember to do so
[21:44] <Laurenceb> I've just realised you could use this technique for calibrating an entire IMU
[21:44] <SpeedEvil> hmm
[21:45] <SpeedEvil> sounds plausible
[21:45] <SpeedEvil> you mean with the knowledge that it's - mostly - stationary?
[21:45] <Laurenceb> first calibrate accel and magno with pretty much the same code
[21:45] <Laurenceb> yes
[21:45] <Laurenceb> then look at the gyro data between positions
[21:45] <Laurenceb> and use your now calibrated knowledge of the actual positions to calibrate the gyros
[21:46] <Laurenceb> also integrate it with the USGS magnetic field code and the gps to find the earths field
[21:46] <Laurenceb> that would be a lot of coding work but very cool reults
[21:48] <Lunar_Lander> are you doing geomagentic research?
[21:48] <SpeedEvil> Fortunate that earth masscons can be largely ignored
[21:50] <Laurenceb> Lunar_Lander: just designing an IMU
[21:51] <Laurenceb> trying to work out how to calirate it - and what components are best and easiest to cal
[21:51] <Laurenceb> bbl
[21:59] SpeedEvil (1000@tor/regular/SpeedEvil) left irc: Quit: Leaving.
[22:00] SpeedEvil (1000@tor/regular/SpeedEvil) joined #highaltitude.
[22:00] <russss> I think I'm going to put a random wire antenna up on my roof for shortwave
[22:01] <russss> but I might tune it to be 40M quarter-wave as that's almost exactly the diagonal distance of my roof
[22:02] <russss> although if I do that I should probably just make it a dipole.
[22:02] <russss> antennas confuse me.
[22:02] SpeedEvil1 (~user@tor/regular/SpeedEvil) joined #highaltitude.
[22:04] SpeedEvil (1000@tor/regular/SpeedEvil) left irc: Ping timeout: 240 seconds
[22:04] <russss> dipole or no dipole?
[22:04] SpeedEvil_ (~Speedevil@tor/regular/SpeedEvil) left irc: Ping timeout: 258 seconds
[22:06] <fsphil> antennas are a very confusing subject
[22:06] <fsphil> make my head hurt :)
[22:06] <russss> indeed
[22:06] <Lunar_Lander> can you just have a wire hang down?
[22:07] <russss> I could do.
[22:07] <fsphil> I had pretty good luck RX'ing with a big long wire between the house and a nearby tree
[22:07] <russss> my roof is quite high up though
[22:07] <russss> so I feel like I should use that to my advantage
[22:08] <DanielRichman> dipole, go for it
[22:10] <ProjectCirrus> is BOC balloon gas [with a bit of air in it] the same as the helium used in the calculations for the burst predictor..... anyone used boc "balloon gas"
[22:10] <russss> I suspect it's close enough to ideal helium for most purposes
[22:10] <ProjectCirrus> has anyone used it?
[22:11] <ProjectCirrus> i'm scared it's really diluted
[22:11] <ProjectCirrus> the datasheet doesn't state composition
[22:12] <russss> the datasheet which I conveniently have on my desk lists its relative density as 0.14
[22:13] <ProjectCirrus> is that the same as pure helium i wonder
[22:14] <russss> wikipedia lists the density of helim in g/L and the density of air in kg/m^3
[22:14] <russss> fail.
[22:14] <russss> oh, same units!
[22:14] <ProjectCirrus> :)
[22:15] <russss> I get 0.14833887
[22:15] <russss> sorry, 0.138235294
[22:16] <russss> so for all intents and purposes it's identical
[22:16] <Lunar_Lander> seems correct
[22:16] <ProjectCirrus> many thanks..... so its just probably "chemically impure" not badly diluted
[22:17] <russss> I suspect they may just be listing the standard density of helium on the datasheet, but that must mean it's pretty close.
[22:19] <Lunar_Lander> normal helium also always has pumping oil in it
[22:23] SpeedEvil_ (~Speedevil@ joined #highaltitude.
[22:23] SpeedEvil_ (~Speedevil@ left irc: Changing host
[22:23] SpeedEvil_ (~Speedevil@tor/regular/SpeedEvil) joined #highaltitude.
[22:24] Nick change: SpeedEvil1 -> SpeedEvil
[22:31] DanielRichman (~DanielRic@unaffiliated/danielrichman) left irc: Remote host closed the connection
[22:33] DanielRichman (~DanielRic@unaffiliated/danielrichman) joined #highaltitude.
[22:33] <ProjectCirrus> ok i'll get balloon gas.... and when it doesn't reach 100000 feet i'll come running on here for a rant about BOC
[22:34] <ProjectCirrus> thanks for the help really though....didn't want to spend £80 quid without being sure!
[22:41] Hiena (~Hiena@ left irc: Quit: -=Got bored from the net. Gone blowing up things.=-
[22:41] <russss> I'm fairly sure most people here just use the BOC balloon gas.
[22:43] <russss> I've been looking at it for other reasons (we're building an autonomous blimp, naturally) and I wonder if having a group purchase would be worth it. Their smaller cylinders have ludicrious markup!
[22:43] Action: russss considers starting a helium bottling racket.
[22:44] <Upu> Well going to have a chat with my wifes company when I come to it, they buy gas in bulk (Vets), not normally helium though rarely a need to have floating cats and dogs :)
[22:44] <Upu> Hi btw
[22:46] junderwood (~John@adsl.jcu.me.uk) left irc: Quit: Leaving
[22:46] <fsphil> floating cats ... as if they're not bad enough already ;)
[22:46] rjmunro (~chatzilla@ joined #highaltitude.
[22:48] <ProjectCirrus> when they reached 100000 feet it would soon be raining cats and dogs!
[22:49] <Lunar_Lander> http://www.youtube.com/watch?v=19zlBk1WksQ
[22:49] <Lunar_Lander> Philip Boit!
[22:57] <rjharrison> Upu hello
[22:57] <rjharrison> R U in Halifax
[22:57] <Lunar_Lander> hi rjharrison
[22:58] <rjharrison> ProjectCirrus yep Balloon gas is all we use
[22:58] <rjharrison> Hi Lunar_Lander
[22:58] <Lunar_Lander> how's life
[22:58] <rjharrison> Busy atm trying to catch up after the media storm
[23:00] DanielRichman (~DanielRic@unaffiliated/danielrichman) left irc: Read error: Connection reset by peer
[23:01] <Upu> Hi rjharrison
[23:01] <Upu> yeah about 30 mins from you
[23:01] <Upu> Looks like we share similar interests and jobs :)
[23:02] <rjharrison> Yep
[23:02] <Upu> Can imagine, you got Slashdotted
[23:02] <rjharrison> Yep that was cool
[23:03] <Upu> It's about time I used my degree I got 15 years ago for something :)
[23:03] <rjharrison> Well if you fancy a launch sometime then let me know
[23:03] <Upu> I have to learn everything again but it's going to be interesting, the GPS chip turned up
[23:03] <rjharrison> It's a bit of a trial to Cambridge but worth it
[23:04] <Upu> haha yeah well it will be a while before I have something ready to go
[23:04] <rjharrison> trail
[23:04] <Upu> Yeah I put in the launch predictor from here and I think it ended up in Wales crossing Manchester Airport
[23:04] <Upu> sure they'd be really happy about that
[23:04] <rjharrison> hehe
[23:05] <Upu> I have some ideas, I need to make a break out board for this chip firstly, one thing at once :)
[23:05] <rjharrison> right I had better get some sleep
[23:05] <Upu> Yeah sounds like a good idea
[23:05] <rjharrison> Upu cool well if you fancy coming for a payload chase sometime let me know
[23:06] <Upu> yeah for sure
[23:06] <Upu> you end up going off road ?
[23:09] <Upu> I best log it's late :) Night all
[23:09] Upu (~Upu@ubn.upuaut.net) left irc: Quit: zzzz
[23:12] LazyLeopard (~irc-clien@chocky.demon.co.uk) left irc: Quit: Bye
[23:24] natrium42 (~natrium@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) joined #highaltitude.
[23:25] edmoore (~ed@pluto.trinhall.cam.ac.uk) left irc: Quit: edmoore
[23:26] <natrium42> poke rjharrison
[23:27] <Laurenceb> SpeedEvil: does the n900 accel have internal low pass filtering enabled?
[23:27] <Laurenceb> the noise seems lower than I was expecting
[23:32] <Laurenceb> nvm coding error
[23:37] <earthshine> ping juxta
[23:37] rjharrison (~rharrison@ left irc:
[23:39] <Lunar_Lander> good night
[23:39] Lunar_Lander (~lunar_lan@p54885C94.dip.t-dialin.net) left irc: Quit: Lunar_Lander
[23:45] Laurenceb (~laurence@host86-136-234-181.range86-136.btcentralplus.com) left irc: Ping timeout: 276 seconds
[23:53] <ProjectCirrus> night all.... I've an early start tomorrow
[23:54] <fsphil> g'night
[23:55] SpeedEvil (~user@tor/regular/SpeedEvil) left irc: Remote host closed the connection
[00:00] --- Mon Apr 12 2010