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[03:15] <Darkside> juxta: about?
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[05:10] <Darkside> hm
[05:10] <Darkside> juxta: ping pong
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[06:43] <m1x10> good morning
[06:43] <m1x10> anyone on linux?
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[08:33] <m1x10> first video from jpeg cam: http://mixio.herobo.com/movie.avi
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[08:55] <Laurenceb> http://www.spacex.com/updates.php <-nice
[08:55] <Laurenceb> i dont get how the crew get onboard
[09:00] <Laurenceb> http://www.spacex.com/assets/img/20101001_vessel.jpg eek
[09:00] <Laurenceb> milling ++
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[10:31] <GW8RAK> Morning all. I'm about to start construction of the payload and am wondering about materials to use. Is 50mm thick polystyrene okay? Provide enough insulation?
[10:31] <GW8RAK> And how do people join it? Glue or gaffer tape?
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[10:39] <juxta> hey Darkside
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[11:23] <Darkside> hey juxta
[11:23] <Darkside> i need grants email
[11:24] <Darkside> i want to see if i can get the foorage he took on wednesday, when i see him at uni
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[11:32] <Laurenceb_> hi
[11:33] <SpeedEvil> hi
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[11:45] <Laurenceb_> http://codepad.org/S8AKz5bs im wondering if that code is behaving weirdly due to use of characters in the switch statement
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[11:46] <Laurenceb_> as it should really only use integers - but it compiles ok
[11:49] <SpeedEvil> Why
[11:49] <SpeedEvil> I thought it could be any comparable datatype.
[11:49] <Laurenceb_> its in the c spec
[11:49] <SpeedEvil> Hmm
[11:50] <Laurenceb_> not with microsoft compilers
[11:50] <Laurenceb_> but gcc is more strict aiui
[11:51] <Laurenceb_> looks like fldigi is running ok with a 20ksps audio stream
[11:51] <Darkside> ooh
[11:51] <Laurenceb_> it thinks everything is 8ksps :P
[11:51] <Darkside> you're upping the sampe rate!
[11:51] <Darkside> awesome
[11:52] <Laurenceb_> yeah - so i now have 10khz bandwidth
[11:52] <Darkside> does this mean you can hack the RTTY decoder to work at a higher baud rate?
[11:52] <Laurenceb_> problem is none of the decoders will work
[11:52] <Darkside> i'd like fldigi to do 600 and 1200 baud RTTY :)
[11:52] <Laurenceb_> apart from rtty
[11:52] <Darkside> oh :P
[11:52] <Laurenceb_> as i can enter any baud rate and freq shift
[11:52] <Laurenceb_> so yeah you could do 10kbps is something crazy
[11:53] <Laurenceb_> i can get up to 100khz bandwidth out of the cc1020
[11:54] <Darkside> oooooooh
[11:55] <Darkside> oh is this from the cc1020
[11:55] <Darkside> not sound card
[11:55] <Darkside> i'd like to do 1200 bauf rtty from sound card input, if thats possible
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[11:56] <Darkside> going from sample rate, i think it is possible
[11:56] <Darkside> just need to have a wide bandwidth receiver
[11:56] <Laurenceb_> oh yeah thats def possible
[11:56] <Laurenceb_> ive done 300kbps over 40km or so
[11:57] <Laurenceb_> bps
[11:57] <SpeedEvil> 100khz I assume with a custom trhingy>
[11:57] <Laurenceb_> with nxt2
[11:57] <SpeedEvil> custom thingy
[11:57] <Laurenceb_> yeah its need a custom decoder.. which id need to write
[11:57] <Darkside> Laurenceb_: this will be on HF
[11:58] <Laurenceb_> yeah - 434mhz
[11:58] <SpeedEvil> I forgot - is the micro you're planning on using for the USB version capable of independant operation?
[11:58] <SpeedEvil> Hmm.
[11:58] <SpeedEvil> Probably saner to make a seperate board I suppose
[11:58] <Darkside> Laurenceb_: recon you can make the code build on OSX?
[11:59] <Darkside> hmm whats the necessary bandwidth for 1200 baud rtty...
[11:59] <Darkside> i'll need to up the carrier shift a bit
[11:59] <Laurenceb_> 1.2khz
[11:59] <Laurenceb_> id just be writing c code
[12:00] <Laurenceb_> no interface or anything
[12:00] <Darkside> eh
[12:00] <Darkside> i mean cant fldigi be modified to do that rate?
[12:00] <Darkside> so i can use a HF receiver
[12:02] <SpeedEvil> Laurenceb: silly thought. Can you run multiple parallel transmitter chips and have enough control over them to do beamforming?
[12:02] <SpeedEvil> Without externals.
[12:03] <Darkside> with something buffering the inputs, that might be possible
[12:03] <Darkside> i wonder if theres a chip similar to the cc1010 or whatever for HF
[12:03] <Laurenceb_> SpeedEvil: not sure - i havent looked at the tx much
[12:03] <Randomskk> we were thinking of this the other day, it would be very neat
[12:03] <Darkside> that isnt just a massive ADC
[12:03] <Randomskk> Laurenceb_: receiver beamforming
[12:03] <Laurenceb_> oh certainly
[12:03] <Randomskk> you could do MUSIC theoretically
[12:03] <Laurenceb_> i have two cc1020 breakouts
[12:03] <Laurenceb_> wass going to try something as some point
[12:03] <Darkside> Laurenceb_: did you make the breakouts yourself?
[12:04] <Laurenceb_> no, mouser sell them
[12:04] <Darkside> how much?
[12:04] <Darkside> i'd be interested in getting one
[12:04] <Darkside> just to muck around with SDR stuff
[12:04] <Laurenceb_> £90 for the kit, whatever that is in $
[12:04] <Darkside> eek
[12:04] <Darkside> AUD$120 or so
[12:05] <Laurenceb_> you could try hacking a um12 module, its cc1020 based
[12:05] <Laurenceb_> and has an avr onboard
[12:06] <Laurenceb_> E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
[12:06] <Laurenceb_> E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
[12:06] <Laurenceb_> what the hell
[12:07] <SpeedEvil> Do you have a package manager open in anotehr window forex
[12:08] <Laurenceb_> nope, and i tried grepping for stuff
[12:08] <Darkside> hmm
[12:08] <Laurenceb_> 8066 ? 00:00:00 apt <defunct>
[12:08] <Upu> kill -9
[12:09] <Upu> :)
[12:09] <Darkside> Laurenceb_: so would doing 1200 baud RTTY be possible using fldigi and a sound card?
[12:09] <Laurenceb_> yes certainly
[12:09] <Darkside> cool
[12:09] <Darkside> i guess theoretically 8KHz sampling rate should be enough
[12:09] <Laurenceb_> ive been using mfsk64
[12:09] <Darkside> but i guess it would be better to up that
[12:09] <Randomskk> I don't think it is very easy to up the sampling rate
[12:09] <Laurenceb_> its got fec and fairly high throughput
[12:09] <Darkside> mm
[12:10] <Laurenceb_> Randomskk: feed it a wav stream with higher sample rate
[12:10] <Darkside> i've been considering implementing MFSK64 on my HF system
[12:10] <Randomskk> Laurenceb_: does that work?
[12:10] <Laurenceb_> and itll think its 8ksps
[12:10] <Laurenceb_> yes
[12:10] <Randomskk> right, it still thinks it is 8ksps
[12:10] <Laurenceb_> but all the filter timings are off
[12:10] <Darkside> but i'm not sure how to get from incoming data to the symbol numbers
[12:10] <Randomskk> right
[12:10] <Laurenceb_> so it only works for rtty
[12:10] <Laurenceb_> as you can reset the baud and shift
[12:10] <Darkside> since i know i'm going to be sending certain size chunks of data, i could easily do all the FEC in one go
[12:11] <Laurenceb_> ive got a waterfall scrolling with 10khz bandwidth
[12:11] <Darkside> so Laurenceb_, what has to be changed in teh code to make it do higher speed RTTY
[12:11] <Darkside> if i can get fldigi compiling on my mac, i could do that
[12:12] <Laurenceb_> Darkdside: nothing
[12:12] <Laurenceb_> im just talking about using a wav stream
[12:12] <Darkside> eh
[12:12] <Darkside> can fldigi already do custom baud rates?
[12:12] <Darkside> no wait it cant
[12:13] <Darkside> i mean i cant set the baud rate to 1200 and have it receive 1200 baud RTTY on the fly
[12:14] <Laurenceb_> hmm yeah
[12:14] <Laurenceb_> i thought there was a box to enter a custom value
[12:15] <Laurenceb_> thats rather annoying
[12:15] <juxta|console> it can do custom shift these days, but not any baud rate
[12:16] <Laurenceb_> wheres custom shift?
[12:17] <juxta|console> in the RTTY decoder options
[12:17] <juxta|console> at least in the builds I've been using
[12:18] <Darkside> i want custom baud
[12:18] <Darkside> so i can up the baud rate on my hf payload
[12:18] <juxta|console> i would like the asus website to serve up my driver download at faster than 5kb/s
[12:19] <Darkside> lol
[12:19] <Darkside> but yes, i want to do 1200 baud on HF
[12:19] <Laurenceb_> kill -9 pid ?
[12:19] <Laurenceb_> whats the syntax?
[12:19] <Darkside> proiblem is it might use more than 3KHz bandwidth :P
[12:20] <Darkside> and will take up a huge chunk of the 10KHz allocated to data on 40m :P
[12:21] <juxta|console> yeah that's right Laurenceb_
[12:21] <Laurenceb_> hmm not working
[12:21] <Darkside> hahahahaha
[12:21] <Darkside> if you cant kill -9 you have a very bad process
[12:21] <Laurenceb_> sudo kill 8066 -9
[12:21] <Laurenceb_> kill: No such process
[12:21] <Laurenceb_> laurence@laurence-desktop:~/Desktop$ ps -A | grep apt
[12:21] <Laurenceb_> 8066 ? 00:00:00 apt <defunct>
[12:21] <Darkside> oh
[12:21] <Darkside> no
[12:21] <Darkside> kill -9 8066
[12:22] <Laurenceb_> same deal
[12:22] <juxta|console> hmm
[12:22] <juxta|console> killall -9 apt?
[12:23] <Laurenceb_> still there
[12:23] <Upu> shutdown -r now
[12:23] <Upu> that should fix it
[12:23] <Laurenceb_> hah
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[12:23] Action: Upu is an MCSE :)
[12:23] <Darkside> yeah
[12:24] <Darkside> if it gets to this point, rebooting is your only option
[12:24] <Laurenceb_> *grumble*
[12:24] <Darkside> hehe
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[12:27] <Laurenceb_> oh its started behaving itself now
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[12:27] <Laurenceb_> it had frozen as its behind a firewaLL
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[12:59] <davidjc> Anyone have experience with the GPS102 tracker? its that cheap little black box one.
[13:02] <juxta|console> ping Darkside
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[13:09] <Laurenceb_> http://paste.bradleygill.com/index.php?paste_id=57200
[13:09] <Laurenceb_> can anyone here explain wtf is going on?
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[13:10] <shenki> Laurenceb_: did you kill apt whilst it was doing something?
[13:10] <Laurenceb_> yes
[13:10] <Laurenceb_> it hung after failing to resolve sourceforge
[13:10] <shenki> Laurenceb_: that's a bad idea. what does `pgrep dpkg` output?
[13:11] <Laurenceb_> 1581
[13:11] <shenki> yeah, installing msttcorefonts is a bit of a messy solution. why were you trying to do that?
[13:11] <Laurenceb_> it was autoupdating
[13:11] <shenki> okay, the 1581 means that dpkg is still running, and has a lock present in the filesystem. that's why you can't run apt again.
[13:11] <Laurenceb_> kill it?
[13:11] <shenki> i think that's your only option, yes
[13:12] <shenki> once you've killed it, run `sudo dpkg --configure -a`
[13:12] <shenki> that will let dpkg finish off whatever it was upto
[13:12] <Laurenceb_> Errors were encountered while processing:
[13:12] <Laurenceb_> ttf-mscorefonts-installer
[13:12] <shenki> indeed
[13:13] <Laurenceb_> should i remove it?
[13:13] <shenki> i would do so
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[13:17] <Laurenceb_> debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
[13:17] <Laurenceb_> dpkg: error processing man-db (--unpack):
[13:17] <Laurenceb_> subprocess installed post-installation script returned error exit status 1
[13:17] <Laurenceb_> E: Sub-process /usr/bin/dpkg returned an error code (1)
[13:17] <shenki> boom!
[13:17] <Laurenceb_> something else locking up?
[13:17] <shenki> is dpkg or apt still running?
[13:17] <shenki> pgrep dpkg
[13:18] <shenki> pgrep apt-get
[13:18] <Laurenceb_> nope
[13:18] <shenki> and you've run dpkg --configure -a?
[13:19] <Laurenceb_> dpkg: error processing man-db (--configure):
[13:19] <Laurenceb_> subprocess installed post-installation script returned error exit status 1
[13:21] <Laurenceb_> when i try to configure
[13:23] <shenki> hrm, not sure what else to suggest, without having the system infront of me
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[13:23] <shenki> a few things to try:
[13:23] <shenki> running the apt-get upgrade again
[13:24] <shenki> find the offending deb and do a dpkg -i <path to debname>
[13:24] <shenki> run dpkg --configure -a --force-all, or similar
[13:24] <shenki> good luck
[13:25] <Laurenceb_> Unpacking replacement apt ...
[13:25] <Laurenceb_> Errors were encountered while processing:
[13:25] <Laurenceb_> /var/cache/apt/archives/linux-image-2.6.32-24-generic_2.6.32-24.43_i386.deb
[13:25] <Laurenceb_> looks like a new kernel
[13:26] <juxta|console> Laurenceb_: did you do an upgrade of your distro the other day, or was that someone else?
[13:26] <Laurenceb_> me, on another machine
[13:26] <juxta|console> oh righto
[13:26] <Laurenceb_> but this machine is a fresh install
[13:26] <Laurenceb_> its not going well :(
[13:26] <juxta|console> yeah that's a pain :(
[13:27] <juxta|console> i'm mucking around with reinstalling windows on an eeepc at the moment, thats not much fun either
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[13:35] <Darkside> juxta|console:
[13:35] <Darkside> juxta:
[13:35] <juxta|console> hey Darkside
[13:35] <juxta|console> 2 secs
[13:35] <juxta|console> lemme movepcs'
[13:35] <juxta> alrighty
[13:35] <juxta> space bar on the workbench pc doenst work so well
[13:36] <Darkside> heh
[13:36] <juxta> so - Grant's email, 2 secs
[13:36] <Darkside> thanks
[13:36] <juxta> no worries
[13:37] <juxta> by the way - do you have any of those anyvolt micro's spare?
[13:38] <Darkside> i only have one :(
[13:38] <juxta> ah damn
[13:38] <juxta> dont suppose there's any chance it's unused at the moment & could be borrowed for a weekend? :P
[13:39] <Darkside> how much current do you need?
[13:39] <Darkside> at what voltage
[13:39] <juxta> 7.4 -> 12
[13:39] <juxta> maybe 200ma I guess
[13:39] <Darkside> hmmmmm
[13:39] <juxta> very low duty cycle though
[13:39] <Darkside> the repeater?
[13:40] <juxta> average consumption over 5 minutes would be more like 10mA
[13:40] <juxta> nah, APRS beacon
[13:40] <Darkside> peak is what counts
[13:40] <juxta> yeah, peak would be perhaps 100-200mA
[13:40] <Darkside> hmmmm
[13:40] <Darkside> thats pushing the limits of it
[13:41] <juxta> I'd have to check, consumption may be less - I think it's a 500mW TX board @ 12v
[13:41] <Darkside> depending on the efficiency of the amp, it might be more :P
[13:42] <juxta> eek
[13:42] <juxta> scratch that
[13:42] <juxta> just got an email back
[13:42] <juxta> 2.5A on TX it seems, haha
[13:42] <Darkside> oh damn
[13:42] <Darkside> thats bad efficiency
[13:42] <juxta> must be more than 500mW
[13:42] <Darkside> or that
[13:42] <Darkside> my HF amp is 35% efficient, and draws 200mA at 12v when transmitting 880mW :P
[13:43] <Darkside> currently the amp is operating class C, because my gate drive is shit
[13:43] <juxta> 880mW is a fair step up from before :)
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[13:44] <Darkside> yeah
[13:44] <Darkside> but its shit efficiency atm
[13:45] <Darkside> mainly because its not doing class E amplification
[13:45] <Darkside> i have ideas on how i can fix it, but i need to fix a few other things first
[13:45] <Darkside> such as replacing the ridiculously overkill filter at the output with something a bit saner
[13:47] <juxta> hehe
[13:47] <Darkside> i.e. somethign that doesnt have a shit-ton of insersion loss
[13:47] <juxta> hey what temp did you find the lipo's died at Darkside?
[13:47] <Darkside> stil, the fet drain waveform is pretty cool
[13:47] <Darkside> as soon as they froze
[13:47] <Darkside> when the electrolyte freezes, things stop working
[13:47] <juxta> yeah - what temp does it freeze at though? ;p
[13:48] <Darkside> not sre actually :P
[13:48] <Darkside> it happened too fast
[13:48] <juxta> heh, okay
[13:48] <Darkside> wouldn't be too far below zero
[13:48] <Darkside> so watch out..
[13:48] <Darkside> might pay to put a temp sensor on the batteries
[13:48] <shenki> Darkside: hows the write up going? ;)
[13:48] <Darkside> shenki: i have a massive introduction
[13:49] <Darkside> its ionosphere 101 + other stuff
[13:49] <shenki> heh
[13:49] Action: shenki just wrote two pages about porting a gameboy emulator
[13:49] <shenki> i think it's a little too verbose, will have to cut some out
[13:53] <Darkside> shenki: my introduction is like a wall of text
[13:53] <Darkside> i think i need to add some diagrams
[13:53] <Darkside> >_>
[13:53] <shenki> yeah. pictures are good
[13:53] <Darkside> crap i need to get to bed
[13:53] <shenki> crap indeed
[13:54] Action: shenki -> pumpkin
[13:54] <Darkside> wha
[13:54] <shenki> i better get to bed too
[13:54] <shenki> goodnight
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[14:05] <Laurenceb_> debconf: DbDriver "config": /var/cache/debconf/config.dat is locked by another process: Resource temporarily unavailable
[14:05] <Laurenceb_> that seems to be the source of my issues
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[15:57] <m1x10> hi
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[16:52] <Jack____> Hello
[16:55] <Jack____> I need to buy a weather balloon for a project, but I don't know how large of a balloon to purchase. I need to lift 300 grams to a maximum of 200 meters in the air (the balloon will be tethered). Could anybody here offer guidance?
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[16:59] <Jack____> I need to buy a weather balloon for a project, but I don't know how large of a balloon to purchase. I need to lift 300 grams to a maximum of 200 meters in the air (the balloon will be tethered). Could anybody here offer guidance?
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[17:02] <MrCraig> hi neighbour
[17:04] Action: MrCraig preps for some soldering
[17:06] <MrCraig> +
[17:06] <MrCraig> ++
[17:06] <MrCraig> and drops things on the keyb - sorry
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[17:12] <fsphil> meh, that's what keyboards are for
[17:13] <MrCraig> yeah - originally invented for manual input I believe but they prooved too slow for the average developer
[17:34] <m1x10> hi fsphil
[17:34] <m1x10> wanna see a video from jpeg cam? :p
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[17:38] <fsphil> hiya m1x10 --- oooh it does video?
[17:38] <m1x10> i did it with ffmpeg
[17:38] <m1x10> :p
[17:38] <m1x10> 348pics
[17:38] <m1x10> 10fps
[17:38] <m1x10> http://mixio.herobo.com/movie.avi
[17:40] <fsphil> haha not bad -- how quickly does it capture frames?
[17:41] <m1x10> just void loop
[17:41] <m1x10> take-save-take-save
[17:41] <fsphil> how many per second?
[17:41] <m1x10> the video?
[17:41] <m1x10> is 10fps
[17:41] <fsphil> the camera
[17:41] <m1x10> its not video from cam
[17:42] <fsphil> i know, but how much time does it take to capture the image?
[17:42] <m1x10> aa
[17:42] <m1x10> i dont know
[17:42] <m1x10> 1min maybe
[17:42] <m1x10> maybe less
[17:43] <m1x10> it saves a image at 32byte chunks
[17:43] <m1x10> at 38400baud
[17:43] <m1x10> im waiting the jap to reply to my mail where i asked him how to move bigger chunks and how to change baudrate to 115200
[17:44] <m1x10> SPI is 8mhz
[17:44] <m1x10> still 115200 uart is tooooo slow
[17:51] <fsphil> need an spi camera
[17:51] <SpeedEvil> There are SDIO cameras
[17:51] <SpeedEvil> IIRC
[17:53] <m1x10> are there any european free hosting servers?
[17:53] <m1x10> my current one just sucks!
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[19:17] <m1x10> silent channel today
[19:17] <SpeedEvil> I am busy flooring.
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[19:37] <jcoxon> evening all
[19:38] <SpeedEvil> Evening.
[19:52] <jcoxon> ping fsphil
[19:54] <fsphil> pong jcoxon
[19:54] <fsphil> good timing
[19:54] <jcoxon> really?
[19:54] <fsphil> just sat down :)
[19:54] <jcoxon> whats up?
[19:54] <jcoxon> hehe
[19:54] <jcoxon> you free for a 'icehalo' meeting
[19:54] <jcoxon> if other people appear that is
[19:54] <fsphil> yep yep!
[19:58] <jcoxon> cool cool
[20:05] <jcoxon> -> ha3
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[20:24] <Darkside> hmm
[20:35] <Darkside> i forget - who made me the OSX build of fldigi?
[20:35] <jcoxon> me
[20:36] <Darkside> ahh
[20:37] <Darkside> do you know what needs to be changed to unlock the RTTY baud rate selection?
[20:37] <Darkside> i'd like to do 600 and 1200 baud RTTY
[20:37] <jcoxon> i think fsphil played around with that
[20:38] <Darkside> mm
[20:38] <Darkside> it would be extremely useful for my projext
[20:38] <fsphil> yea I got 600 baud working
[20:38] <fsphil> but 1200 never decoded
[20:39] <Darkside> could that be because of the 8KHz sample rate?
[20:39] <fsphil> yes I suspect so
[20:39] <Darkside> Laurenceb has been working on upping the sample rate- currently it only works with RTTY because all the other filters are off :P
[20:39] <fsphil> but I've never tested
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[20:43] <fsphil> 600 baud would probably work fine even at distance
[20:43] <fsphil> 1200 would be pushing it maybe :)
[20:44] <Darkside> yeah
[20:45] <Darkside> i'm looking at outputting a watt or so the next time i launch my transmitter
[20:45] <Darkside> so thats 25 times more power than i had last time
[20:45] <Darkside> 14dB :P
[20:45] <fsphil> you'd be able to push 2400 baud at that power :p
[20:46] <fsphil> just have bandwidth problems on the receiver side though
[20:46] <Darkside> yeah, at HF particularly
[20:46] <Darkside> since mos HF receivers are designed for 3KHz bandwidth
[20:46] <fsphil> yea
[20:46] <Darkside> but...
[20:46] <Darkside> i'm going to have access to a USRP soon...
[20:46] <Darkside> :)
[20:47] <fsphil> aah, you'll have megahertz!
[20:47] <Darkside> :P
[20:47] <Darkside> still, i think i'll design so a normal HF receiver can get it
[20:47] <Darkside> so i dont think i'll go higher than 1200 baud
[20:47] <fsphil> indeed
[20:47] <fsphil> might try 1200 baud again with a higher sample rate
[20:48] <fsphil> isn't mfsk more efficient than rtty?
[20:49] <Darkside> probably
[20:49] <Darkside> i'll need to learn proper error correction for MFSK :P
[20:49] <Darkside> i need to refactor most of my transmission code anyway
[20:50] <Darkside> in particlar, put the transmission code into a interrupt based system
[20:50] <fsphil> yea it's handy that
[20:51] <Darkside> well in particular for dominoEX, i should be transmitting at all times
[20:52] <Darkside> i.e. with the secondary channel
[20:52] <fsphil> the way i've setup mine is to transmit 0's when there is no data
[20:52] <Darkside> at th emoment i just stop transmitting, and fldigi's timing stuffs up
[20:52] <Darkside> yeah, i need to do something like that
[20:52] <Darkside> i was going to just transmit some kind of filler text
[20:52] <fsphil> though a few times I've found myself over-writing the buffer currently being sent
[20:53] <Darkside> mm
[20:53] <Darkside> i have a few ideas on how to do that...
[20:53] <Darkside> have a certain size buffer, and a lock bit
[20:53] <Darkside> and have a function that copies a string into the buffer, but only when the lock bit is clear
[20:53] <fsphil> I've a wait function that returns once the send buffer is empty
[20:54] <Darkside> mm or that
[20:54] <fsphil> but I'd like some way to act just before the buffer empties
[20:54] <fsphil> so there is no gap
[20:54] <Darkside> yeah
[20:54] <Darkside> in my case i think i'll have the interrupt transmit some filler if theres no data in the buffer
[21:11] <Darkside> fsphil: is adding in 600baud support as each as adding 600 to the _BAUD array ?
[21:11] <Darkside> or is there something more
[21:12] <fsphil> Darkside, basically
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[21:12] <fsphil> you also need to add it to the dialog
[21:12] <fsphil> so you can select it
[21:12] <Darkside> ok
[21:12] <Darkside> it would be great if i could actually compile fldigi..
[21:13] <Darkside> currently theres issues with some of the libraries from macports
[21:13] <fsphil> that can be ... fun :)
[21:13] <Darkside> i'm vaguely considering a linux vm just to run fldigi >_>
[21:13] <fsphil> you compiling it on the mac?
[21:13] <Darkside> yup
[21:13] <jcoxon> probably its curl thats the issue
[21:14] <Darkside> it is
[21:14] <Darkside> how do i fix?
[21:14] <jcoxon> is it wrong that i can't remember
[21:14] <Darkside> :(
[21:14] <jcoxon> i think i installed it manually
[21:14] <jcoxon> rather than macports
[21:15] <Darkside> goddamnit, i just went into the dl-fldigi directory and did svn update
[21:15] <Darkside> THAT DOESNT WORK
[21:15] <Darkside> crap, how do i git
[21:16] <Darkside> how do i checkout a git repository >_>
[21:16] <MrCraig> that was the scariest soldering I've done in aaages
[21:16] <DanielRichman> Darkside: what do you want to do?
[21:16] <DanielRichman> PS: Git is awesome and kicks svn
[21:16] m1x10 (m1x10@ppp089210159144.dsl.hol.gr) got netsplit.
[21:16] The-Compiler (~compiler@unaffiliated/the-compiler) got netsplit.
[21:16] <Darkside> DanielRichman: get the damn repo :P
[21:17] <Randomskk> git clone <url>
[21:17] <Darkside> ok
[21:17] <DanielRichman> do you already have the damn repo ("i just went into the dl-fldigi directory")?
[21:17] <Darkside> getting http://github.com/jamescoxon/dl-fldigi.git now
[21:17] <DanielRichman> or do you want to get it from scratch
[21:17] <Darkside> nah i deleted it in frustration :P
[21:17] <DanielRichman> :D
[21:17] <DanielRichman> yeah, git clone, then afterthat, git pull == git update
[21:17] <Darkside> jcoxon: any idea what version of curl you used, or where you got it from?
[21:17] <Darkside> ok
[21:17] <DanielRichman> Darkside: operating system?
[21:18] <Darkside> OSX
[21:18] <Darkside> theres an issue with compulation of fldigi on OSX, and its all around libcurl
[21:18] <Darkside> i'm probably goign to compile and install it manually
[21:18] <Darkside> (libcurl that is)
[21:18] <DanielRichman> afraid I can't help you there; all I know about is how to build it on ubuntu, which may be a helpful reference: http://ukhas.org.uk/projects:dl-fldigi:build-ubuntu
[21:18] <DanielRichman> macports? I believ eyou can even get aptitude for osx
[21:20] <Darkside> its the version in macports thats the probem
[21:20] <jcoxon> curl 7.16.4
[21:20] <Darkside> jcoxon: ooh, so not 7.21....
[21:20] <Darkside> hmm
[21:20] <jcoxon> hold on
[21:21] <jcoxon> thats just from my shell
[21:22] <Darkside> the curl on my system is 7.21.1, from macports i think
[21:22] <Darkside> that version of libcurl do you have, still 7.16.4?
[21:24] <jcoxon> pkg-config --modversion libcurl
[21:24] <jcoxon> gives
[21:24] <jcoxon> 7.19.4
[21:24] <Darkside> hmm
[21:24] <Darkside> that does it say in curl -V ?
[21:24] <Laurenceb> SpeedEvil: how knowledgable are you on NMR/MRI?
[21:24] <Darkside> curl 7.21.1 (x86_64-apple-darwin10.4.0) libcurl/7.21.1 OpenSSL/1.0.0a zlib/1.2.5 libidn/1.19
[21:24] <Laurenceb> i remeber you talking about it ages ago
[21:24] <jcoxon> curl 7.16.4 (i386-apple-darwin9.0) libcurl/7.16.4 OpenSSL/0.9.7l zlib/1.2.3
[21:24] <jcoxon> Protocols: tftp ftp telnet dict ldap http file https ftps
[21:24] <jcoxon> Features: GSS-Negotiate IPv6 Largefile NTLM SSL libz
[21:24] <Darkside> heh..
[21:24] Action: Laurenceb is trying to understand spin echo
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[21:25] <Laurenceb> wondering if you can have -ve rotation pulses
[21:25] <Laurenceb> SpeedEvil1: how knowledgeable are you on NMR/MRI?
[21:25] <Darkside> jcoxon: i'll try installing 7.19.4
[21:25] <Laurenceb> im is trying to understand spin echo - wondering if you can have -ve rotation pulses
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[21:25] <SpeedEvil1> I have gone into it in moderate detail several months ago
[21:26] <SpeedEvil1> Umm.
[21:26] <SpeedEvil1> Unsure.
[21:26] <SpeedEvil1> I was pondering a desktop MRI unit.
[21:27] The-Compiler (~compiler@unaffiliated/the-compiler) got lost in the net-split.
[21:27] m1x10 (m1x10@ppp089210159144.dsl.hol.gr) got lost in the net-split.
[21:28] Action: Laurenceb was investigating miniture bloodflow meter
[21:28] <SpeedEvil1> http://www.cis.rit.edu/htbooks/mri/inside.htm was one I found interesting.
[21:28] <Laurenceb> yeah thats really good
[21:28] <SpeedEvil1> From memory, for that, you need sufficient resolution to image a blood vessel
[21:28] <Laurenceb> nope
[21:29] <SpeedEvil1> hmm
[21:29] Action: SpeedEvil1 ponders.
[21:29] Nick change: SpeedEvil1 -> SpeedEvil
[21:29] <SpeedEvil> Oh
[21:29] <Laurenceb> just a really inhomogeneous fields
[21:29] <SpeedEvil> Hmm.
[21:29] <Laurenceb> then it causes frequency chirps
[21:29] <Laurenceb> on the flowing blood
[21:29] <Laurenceb> -> patent
[21:29] <SpeedEvil> But the chirps are acoherent.
[21:29] <Laurenceb> heh - ive never seen this idea anywhere else
[21:30] <Darkside> craaaaaaaaap, the macports libs are taking preference over /usr/local/ stuff
[21:30] <Laurenceb> you excite the spins then wait for 10ms or so and do a spin echo
[21:30] <SpeedEvil> Unless you've got voxels that are of the same order of magnitude as the blood vessels
[21:30] <Laurenceb> look at the fft and see if you have stuff at large frequency offsets
[21:31] <Laurenceb> only one 'voxel'
[21:31] <Laurenceb> and use a N52 magnet for the main field
[21:31] <Laurenceb> ~10mm diameter
[21:32] <Darkside> whats a way to force using /usr/local over /opt/local/
[21:32] <Darkside> for libs
[21:32] <SpeedEvil> The probelm is that you do not get coherent offsets.
[21:32] <Randomskk> LD_LIBRARY_PATH=/usr/local ./app
[21:32] <Randomskk> or such
[21:32] <SpeedEvil> Hmm
[21:32] <Laurenceb> yeah - T2, thats why you only wait for 10ms or so
[21:32] <Darkside> Randomskk: what about with make
[21:32] <Randomskk> Darkside: often an argument to configure
[21:33] <Randomskk> else you can -L to specify library paths to gcc
[21:33] <Laurenceb> its kind of hard to explain all the theory
[21:33] <Laurenceb> but atm my problem is in sims the S/N is to low
[21:33] <SpeedEvil> Laurenceb: i wonder if modulating the field significantly gets you anything.
[21:33] <SpeedEvil> yeah.
[21:33] <Laurenceb> i have to do multiple spin echoes
[21:33] <SpeedEvil> I've not gotten far enough into the maths of it to be doing sims. I was basically just looking at the ballpark numbers.
[21:33] <Laurenceb> and the field from the exciter coils is inhomogeneous
[21:34] <Laurenceb> so that doesnt work
[21:34] <SpeedEvil> earth field is a no-go I assume?
[21:34] <Laurenceb> if i can generate -ive +ive +ive +ive spin rotations for spin echo the inhomogeneities in rotation field strength cancle out
[21:35] <Laurenceb> i suspect inverting the phase would do that
[21:35] <Laurenceb> but havent seen that idea discussed anywhere
[21:35] <Laurenceb> earth field gives a low population inversion
[21:35] <Laurenceb> one idea ive seen in a large pulsed field to give a population inversion then use earth field for the data
[21:35] <SpeedEvil> Unfortunately, I'd need to spend _way_ more time thinking about this - I'd also need to brush up on my maths - I'm using the little spinning arrows analogies too much
[21:36] <SpeedEvil> yeah
[21:36] <Laurenceb> but pulsed electromagnets with large currents and medical device approval etc dont mix
[21:37] <SpeedEvil> There was a demo device that does that
[21:37] <SpeedEvil> I can't find my bookmarks
[21:37] <SpeedEvil> http://www.magritek.com/terranova.html
[21:38] <SpeedEvil> Well - it's not a fundamental bottleneck - the field is low enough that it's not much of a safety concern.
[21:38] <SpeedEvil> And you can encase it in thick plastic.
[21:38] <Laurenceb> yeah lots of the demo earth field kits work like that
[21:38] <SpeedEvil> But yes, it'd raise the costs considerably.
[21:38] <SpeedEvil> Also.
[21:38] <Laurenceb> its more a case of heating
[21:39] <SpeedEvil> In principle, the field is homogenous along a non-planar surface.
[21:39] <Laurenceb> but then theres stuff like http://www.monicahealthcare.com/products/monicaan24.php
[21:39] <Laurenceb> ^ uses sfe lipos
[21:39] <SpeedEvil> I suppose the issue is then that you want the gradient and other coils to be symmetric about those.
[21:39] <Laurenceb> i know some of the guys who work there
[21:39] <SpeedEvil> And symmetric around a non-planar surface is really hard.
[21:40] <Darkside> In file included from /opt/local/include/curl/curl.h:35
[21:40] <Darkside> FUUUUUUUU
[21:40] <Darkside> why
[21:40] <Darkside> ...
[21:40] <Laurenceb> lipos +medical devices is surely not wise
[21:40] <DanielRichman> sounds like someone's enjoying compiler hell
[21:40] <Darkside> ./configure --libdir=/usr/local/lib --includedir=/usr/local/include
[21:40] <Darkside> i tried that...
[21:40] <DanielRichman> if there's a configure script typically it's that one that you have to convince
[21:41] <SpeedEvil> Well - lipo is a well known procedure. :)
[21:41] <DanielRichman> note that configure may ask pkg-config for infoz on where stuff is
[21:41] <Darkside> mm
[21:41] <DanielRichman> you may instead want to specify a new pkg-config directory, wher eit can find a pkg config file which points it to the final library locations
[21:41] <SpeedEvil> On a tangent - seen the fat-freezing thing?
[21:41] <SpeedEvil> Funky.
[21:41] <Darkside> darkside-macbook:dl-fldigi darkside$ pkg-config --libs libcurl
[21:41] <Darkside> -L/opt/local/lib -lcurl -lidn -lssl -lcrypto -lz
[21:41] <Darkside> due
[21:41] <Darkside> die
[21:41] <Darkside> goddamnit
[21:41] <Laurenceb> http://www.youtube.com/watch?v=z3o_2mwRPdw
[21:42] <SpeedEvil> yeah - I've seen that.
[21:42] <SpeedEvil> they can be quite energetic
[21:43] <SpeedEvil> Isn't ultrasound _way_ easier for bloodflow anyway?
[21:45] <SpeedEvil> Sensor fusion is where the upcoming shiny is.
[21:45] <SpeedEvil> Ultrasound + MRI + deep unscattered photon + ...
[21:45] <SpeedEvil> +xray
[21:45] <SpeedEvil> With scads and scads of CPU thrown at merging.
[21:46] <Laurenceb> heh
[21:46] <Laurenceb> ultrasound cant give you very good flow aiui
[21:46] <Laurenceb> without a massively complex sensor head
[21:47] <Laurenceb> deep unscattered photon ?!
[21:47] <SpeedEvil> yes, I was assuming a 'normal' sensor head
[21:47] <SpeedEvil> I don't know the proper term.
[21:47] <SpeedEvil> Imaging a light pulse incident on the body, only looking at the first few photons out.
[21:47] <SpeedEvil> Of course in practice 10^n pulses and averaging.
[21:48] <Laurenceb> oh clever
[21:48] <Laurenceb> avoiding the multiple scatters problem?
[21:48] <SpeedEvil> yes.
[21:49] <Darkside> fracking.. this is not working
[21:49] <Darkside> DanielRichman: how can i override pkg-config for a single packge?
[21:49] <SAIDias> howdy
[21:49] Nick change: SAIDias -> W0OTM
[21:49] <Darkside> because its pkg-config that giving me the shits atm
[21:49] <Laurenceb> aiui ultrasonics cant actually see the flowing blood
[21:49] <DanielRichman> depends on how hacky you mind being. If you find the pkg config directory you can just manually rewrite the file
[21:49] <Darkside> hmm
[21:50] <DanielRichman> alternatively you can tell configure via some environment variable that I've forgetten to use a different binary for pkg-config
[21:50] <DanielRichman> and spike it
[21:50] <SpeedEvil> http://en.wikipedia.org/wiki/Medical_ultrasonography#Doppler_sonography
[21:50] <Darkside> DanielRichman: hrmmmm
[21:51] <Darkside> libcurl doesnt create a .pc
[21:51] <DanielRichman> shurely it must to in order to use pkgconfig
[21:51] <Darkside> i've compiled curl, where would hte pkg-config file be?
[21:51] <DanielRichman> mine are in /usr/share/pkgconfig/
[21:51] <DanielRichman> that's ubuntu
[21:52] <Darkside> nope not there
[21:52] <Darkside> and not in /opt/local/share/pkgconfig either
[21:53] <Darkside> theres a few files there, but nothing for curl or anything else
[21:53] <Darkside> its times like these i seriously consider installing gentoo prefix
[21:54] <Laurenceb> interesting
[21:56] <Laurenceb> aha - doppler wont work for small blood vessels
[21:56] <DanielRichman> try `locate \.pc`
[21:56] <Laurenceb> thats one advantage fro nmr
[21:56] <Darkside> sound them
[21:56] <Darkside> found it
[21:56] <Darkside> /opt/local/lib/pkgconfig
[21:56] <DanielRichman> gentoo prefix? while gentoo has benefits to be honest ubuntu would be a lot less work
[21:56] <Darkside> DanielRichman: i run OSX
[21:57] <Darkside> gentoo prefix is like macports, in that i have all the linux userspace stuff in a prefix
[21:57] <DanielRichman> I know
[21:57] <Darkside> and i dont need a VM
[21:57] <DanielRichman> oh, I see
[21:57] <Darkside> woo
[21:57] <Darkside> mangling .pc files
[21:58] <Darkside> darkside-macbook:dl-fldigi darkside$ pkg-config --libs libcurl
[21:58] <Darkside> -L/usr/local/lib -lcurl -lidn -lssl -lcrypto -lz
[21:58] <Darkside> lets see if it works
[21:59] <Darkside> In file included from /opt/local/include/curl/curl.h:35,
[21:59] <Darkside> wtf
[22:02] <Darkside> even in teh makefile it says CURL_CFLAGS = -I/usr/local/include
[22:02] <Darkside> CURL_LIBS = -L/usr/local/lib -lcurl -lidn -lssl -lcrypto -lz
[22:02] <DanielRichman> reconfigure?
[22:02] <Darkside> i did
[22:02] <DanielRichman> also grep . -R opt
[22:02] <Darkside> i just pasted what was in the makefile
[22:02] <DanielRichman> :X
[22:02] <DanielRichman> mv /opt/local/include/curl /opt/local/include/curl.old ?
[22:03] <Darkside> yeah, i might not have a choice
[22:03] <Darkside> awwww mannn
[22:03] <Darkside> In file included from /usr/local/include/curl/curl.h:36, from ./include/dl_fldigi.h:16, from dialogs/confdialog.cxx:10:
[22:04] <Darkside> /usr/local/include/curl/curlrules.h:134: error: size of array __curl_rule_01__ is negative
[22:04] <Darkside> /usr/local/include/curl/curlrules.h:144: error: size of array __curl_rule_02__ is negative
[22:04] <Darkside> looks like its curl in general
[22:04] <Darkside> well this sucks
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[22:06] <Darkside> checking build system type... x86_64-apple-darwin10.4.0
[22:06] <Darkside> that could be my problem
[22:07] <Darkside> i wonder how i change the build architecture
[22:08] <DanielRichman> ./configure --host
[22:08] <DanielRichman> I think
[22:08] <DanielRichman> that's the target;
[22:08] <DanielRichman> ./configure --help
[22:09] <DanielRichman> at the top should be the options you're referring to
[22:09] <Darkside> not --target?
[22:09] <Darkside> so --host=x86
[22:11] <Darkside> --host=i386-apple-darwin10 CFLAGS="-arch i386" CXXFLAGS="-arch i386" LDFLAGS="-arch i386" OBJCFLAGS="-arch i386"
[22:11] <Darkside> mann
[22:11] <Darkside> thats from VLC's compile guide btw
[22:12] <Darkside> nope, failed again
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[22:13] <Darkside> hmm
[22:14] <DanielRichman> Darkside: have you made modifications to dl-fldigi or are you just trying to install it?
[22:14] <Darkside> im just trying to compile from git
[22:14] <DanielRichman> hasn't jcoxon released osx builds/dmgs?
[22:15] <Darkside> i also plan on doing some hax
[22:15] <Darkside> to allow 600 baud rtty
[22:15] <DanielRichman> hehe :)
[22:15] <Darkside> ffs
[22:15] <Darkside> this is just not working
[22:15] <DanielRichman> :-(
[22:15] <Darkside> i think i'm going to have to ubuntu in a vm or something
[22:15] <DanielRichman> that's probably the easiest way right now
[22:16] <Darkside> but its a crap way
[22:16] <DanielRichman> I know
[22:16] <DanielRichman> you could See the Light, download the ubuntu cd and wipe osx off your box?
[22:16] <jcoxon> Darkside, what exactly were your errors?
[22:17] <Darkside> DanielRichman: linux has issues on some macbook
[22:17] <Darkside> macbooks*
[22:17] <Darkside> mine in particular
[22:17] <DanielRichman> :'(
[22:17] <DanielRichman> anyway; I'd better go. Have fun compiling ;)
[22:17] Nick change: tdipow -> robreg
[22:18] <Darkside> jcoxon: http://slexy.org/view/s26WCIG395
[22:20] <jcoxon> so its a 64bit issue
[22:20] <Darkside> any ideas?
[22:20] <Darkside> i had a go targeting 32 bit
[22:20] <Darkside> with ./configure --disable-flarq --host=i386-apple-darwin10 CFLAGS="-arch i386" CXXFLAGS="-arch i386" LDFLAGS="-arch i386" OBJCFLAGS="-arch i386"
[22:21] <Darkside> ill paste the build log for that in a sec
[22:21] <Darkside> once i run it again
[22:21] <Darkside> same errir
[22:21] <Darkside> exactly the same error
[22:22] <jcoxon> http://github.com/taf2/curb/wiki/faq
[22:23] <jcoxon> http://coryodaniel.com/index.php/2010/01/20/building-curb-on-snow-leopard/
[22:23] <Darkside> ok
[22:23] <Darkside> +universal
[22:24] <Darkside> running that now
[22:25] <Darkside> bah i wish macports would tell me what dependecies its about to go and compile
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[22:42] <jcoxon> night
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[22:59] <Darkside> woo fldigi is compiling
[22:59] <Darkside> crap
[22:59] <Darkside> another error
[22:59] <MrCraig> Darkside, what's your host OS?
[22:59] <Darkside> OSX
[22:59] <Darkside> now i've got a heap of undefined symbols
[23:00] <Darkside> ld: warning: in /opt/local/lib/libportaudio.dylib, file was built for unsupported file format which is not the architecture being linked (i386)
[23:00] <Darkside> crap
[23:00] <Darkside> more x86_64 errors
[23:00] <MrCraig> :-/ good luck with it
[23:00] <Darkside> ill try a i386 compile
[23:00] <Darkside> heh..
[23:00] <Darkside> macports compiles everything to x86_64 now
[23:01] <MrCraig> I've never owned or targeted a mac to compile anything
[23:02] <fsphil> I tried compiling fldigi on the mac once, give up
[23:02] <Darkside> heh
[23:02] <fsphil> I figured my box was too old, running 10.4
[23:02] <Darkside> its possible, i just have to deal with the 64 bit issues
[23:02] <Darkside> crap, same error
[23:03] <Darkside> dammit
[23:03] <Darkside> slowly edging closer to running dl-fldigi in a ubuntu vm...
[23:03] <MrCraig> does it not build for x86_64 doze or *nix?
[23:03] Nick change: The-Comp1ler -> The-Compiler
[23:03] <Darkside> no idea
[23:03] <fsphil> runs fine on x86_64 linux
[23:03] <MrCraig> I guess most would just run the 32-bit on x86_64 and not bother rebuilding for that target.
[23:03] <fsphil> dunno about 64-bit windows, nobody's ever build that
[23:04] <Darkside> ill have to wait for jcoxon to come back online i guess
[23:04] <Darkside> oh well, uni time now...
[23:04] <Darkside> cya
[23:04] <fsphil> cya ds
[23:04] <MrCraig> I installed it on the car puter, but didn't try using it yet - I figure the UI will be tricky on a touch screen
[23:04] <MrCraig> cya darkside
[23:04] Action: fsphil is trying to debug ipv6
[23:05] Action: MrCraig is watching the last two mins of a mythbusters and then going to bed
[23:05] <fsphil> good show
[23:06] <MrCraig> yeah - I've seen them before but got the entire series 1-6 and I've had a mythbusters marathon for the last couple or three weeks
[23:06] <MrCraig> it's just been on in the background while I do other stuff
[23:06] <MrCraig> night nighters :-)
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[00:00] --- Tue Oct 19 2010