highaltitude.log.20150508

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[04:01] <Professor> do any of you guys have experience with embedded gps modules?
[04:02] <Professor> I feel like I'm going crazy. Damn thing shows 3.3 volts on Tx and Rx, solid. No data shown on the scope, but the PPS line is fine.
[04:07] <Vaizki> so it doesn't respond to serial input?
[04:11] <Vaizki> I think 3.3V is ok on TX while idle but the RX side shouldn't drive any voltage out
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[04:53] <Professor> too many moving parts. I'm going to build a small carrier board with a max3232 on it to talk to a pc
[04:53] <Professor> that will tell me the module works
[04:53] <Professor> trying to talk to a timing receiver (not position) via beaglebone black, figured more people here would know how to talk to these things than I do
[04:54] <Professor> so yah, I scoped it, saw 3.3 on one, but nothing on the other unless soldered down to the header connecting to the uart on the BBB
[04:54] <Professor> then they both sat at 3.3
[04:54] <Professor> .i
[04:54] <Professor> ignore that
[05:00] Nick change: Professor -> tprg
[05:00] Nick change: tprg -> Professor
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[05:47] <Vaizki> Professor, you might want to mention which module it is
[05:48] <Vaizki> and if you put it on the BBB uart, the BBB is supplying an idle +3.3V (Vcc) voltage on the other pin
[05:49] <Professor> i'm bouncing between a motorla oncore M12+ timing receiver and a Furuno GT-8036C timing receiver
[05:49] <Vaizki> also for serial debugging a usb serial TTL cable for 3.3V is a great thing to have..
[05:50] <Vaizki> hmm so if the PPS output is working, what are you expecting to see on serial?
[05:50] <Vaizki> I don't think timing receivers are configured to output NMEA gratiotuously
[05:51] <Vaizki> eh.. gratuitously.. sorry english as a second language :)
[05:52] <Professor> they don't. neither of these is capable of it.
[05:52] <Professor> it's a motorola binary format
[05:52] <Professor> and I see nothing on the scope while powered, but PPS is happy as can be. I'm curious if they just spit nothing out when no antenna is connected
[05:52] <Professor> other recievers I've monkeyed with over the years don't spit out PPS unless they get lock but those were different
[05:53] <edmoore> oh professor
[05:53] <edmoore> long time
[05:53] <edmoore> high
[05:53] <Professor> I compiled ntp with the "oncore" driver and pps driver and my BBB sees the pps (ppstest works) but ntp firing up doesn't see the serial port I think
[05:54] <Professor> I mean uart4 is there, the /dev/symlinks are there
[05:54] <Professor> just no love
[05:54] <Professor> firing up minicom it doesn't respond
[05:54] <Professor> heya edmoore
[05:55] <Vaizki> hmm so your device tree overlays are loaded and udev pops up with the /dev nodes
[05:55] <Professor> the oncore driver knows how to handle the binary format
[05:55] <Vaizki> sure
[05:55] <Professor> it pops up with /dev/pps0 when the overlay is loaded
[05:55] <Professor> uart4 is available too
[05:55] <Vaizki> it is /dev/ttyO4 ?
[05:55] <Professor> I symlink /dev/oncore.serial.0 or whatever to /dev/ttyO4
[05:56] <edmoore> it's 10 years of UK ballooning this year
[05:56] <Professor> and ntp is just annoyed
[05:56] <Professor> wow
[05:56] <Vaizki> right, and P9 pin 11 & 13 connected to module?
[05:56] <Professor> I bought my kaymont balloon at least that long ago and never filled it
[05:56] <Professor> yep!
[05:57] <Professor> I'm following a mix of this site: http://blog.dan.drown.org/beaglebone-black-ntpgps-server/
[05:57] <Professor> and:
[05:58] <Professor> http://remco.org/index.php/2008/04/19/motorola-oncore-ut-and-linuxpps/
[06:00] <Vaizki> hmm sorry which overlay are you loading to get /dev/pps0 ?
[06:01] <Professor> http://dan.drown.org/bbb/DD-GPS-00A0.dts.txt
[06:02] <Vaizki> which kernel version are you using?
[06:02] <Vaizki> 3.12?
[06:02] <Professor> great question. lemme fire it back up
[06:02] <Professor> it's up to date debian
[06:03] <Vaizki> 3.17 probably then
[06:03] <Professor> Linux beaglebone 3.8.13-bone47
[06:03] <Vaizki> just wondering because I remember some changes to the DT naming conventions etc around 3.10
[06:03] <Vaizki> oh ok
[06:04] <Vaizki> well then nevermind.. just noticed the 2013 copyright on the DT overlay
[06:04] <Vaizki> and wondered if you are using a bleeding edge kernel
[06:09] <Professor> I'll order a couple max3232 chips and get one wired up on a carrier board
[06:09] <Professor> my goal is to build a very high accuracy, low jitter NTP server to replace a symmetricom commercially available one that died
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[06:15] <Vaizki> interesting.. how low do you need to go in terms of jitter?
[06:15] <Professor> well, just for fun I'm pushing for < 5ns rms
[06:16] <Professor> in no way does it matter
[06:16] <Vaizki> what :)
[06:16] <Vaizki> is either of those modules even spec'd for that...
[06:16] <Professor> yeah
[06:16] <Professor> the BBB can't do it tho
[06:16] <edmoore> 5ns sounds into ptp territory
[06:16] <edmoore> comfortably ptp
[06:16] <edmoore> but hard to ntp?
[06:16] <Professor> not unless I replace the clock oscillator with an external one and a DDS board
[06:17] <Professor> which I've done
[06:17] <Professor> not for the BBB tho
[06:17] <Professor> ptp ?
[06:17] <edmoore> precision time protocol
[06:17] <Vaizki> precision time protocol
[06:17] <Vaizki> damn
[06:17] <Professor> oh, don't know it
[06:17] <edmoore> used for syncing up ethernet systems for things like industrial control
[06:17] <Professor> I've looked into white rabbit a bit
[06:17] <Professor> ah
[06:17] <edmoore> where you actually need accurate time
[06:17] <Professor> lemme google it up
[06:18] <Professor> I'm trying to roll out white rabbit for stuff at work (physics projects)
[06:18] <Vaizki> most people need NTP to make sure kerberos credentials don't die and to match up server logs :)
[06:18] <edmoore> oh right
[06:18] <edmoore> so white rabbit is like ptp++
[06:18] <edmoore> but similar idea
[06:18] <edmoore> if you know white rabit and you can do the phy for this project then i'd probs just use that
[06:19] <Professor> these are unrelated things. just doing ntp for home to replace a syncserver s300
[06:19] <edmoore> oh right
[06:20] <edmoore> well i guess there's two probs really
[06:20] <edmoore> 1) the accuracy of the clock on the timeserver, 2) how well the whole network can sync with the timeserver
[06:20] <edmoore> i think ptp and white rabbit (you probs know all this) only really deal with 2)
[06:20] <Professor> yeah
[06:20] <edmoore> whereas i've come to this convo halfway through so am not sure if you're discussing 1 or 2 or both
[06:21] <Vaizki> 1
[06:21] <Vaizki> although I'm not entirely qualified, just the only one awake :D
[06:21] <Professor> so in the past I've rebuilt singleboard computers by replacing the onboard clock crystal with high precision reference oscillator and a DDS board to synthesize the right clock frequency
[06:21] <Professor> from there did gps w/ pps
[06:21] <Professor> but it was flaky as fuck and I'm not even going to bother again
[06:23] <Professor> http://www.nerdhouse.org/projects/timeserver/IMG_1392.JPG
[06:25] <Professor> http://www.nerdhouse.org/projects/timeserver/IMG_1391.JPG <-- I designed that board for an unrelated project, just happened to work out.
[06:27] <Vaizki> well you are way beyond my adventures in gps time so not sure I can give any real input :)
[06:27] <Professor> the ntp side is supposed to be the easy part. it's making this damn BBB talk to the receiver I'm having issues with
[06:27] <Professor> I'll just order a 3.3 volt max232 and go from there
[06:27] <Professor> if I know the receiver(s) work, then I can focus on something else
[06:27] <Vaizki> just thinking that the BBB and linux kernel is going to degrade your performance up to a point where you'd be fine with a ublox nav receiver or something instead of a timing receive
[06:28] <Vaizki> unless you have the timing receivers for free of course :)
[06:28] <Professor> there is a precision time driver for the PPS I want to use but not till I get things working
[06:28] <Vaizki> why not order a logic analyzer instead
[06:28] <Professor> I have one, it just doesn't doe 3.3 volts ;-)
[06:28] <Professor> maybe it does. tektrons 308 if I recall
[06:28] <Professor> er, tektronix
[06:28] <Vaizki> it does with a level converter..?
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[06:29] <Professor> I don't see any evidence with the scope that the receivers are spitting out data
[06:30] <Professor> I have an MMCX <-> SMA connector coming saturday from amazon that I can use to connect these boards to my gps distribution amp/splitter in the shop. it's possible they act dead if no antenna
[06:31] <Professor> although there is software from motorola to talk to these things that lets you know if there is no antenna attached
[06:32] <Professor> bah, I need to sleep. I'm getting like 3-4 hours a night on average and my performance is dropping at work
[06:32] <Professor> g'nite guys. I'll be back later.
[06:32] <Professor> thank you
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[06:35] <SpacenearUS> New position from 03GAS-8 after 036 days silence - 12http://tracker.habhub.org/#!qm=All&q=GAS-8
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[07:16] <SpacenearUS> New position from 03PI_SKY_PLUS after 037 days silence - 12http://tracker.habhub.org/#!qm=All&q=PI_SKY_PLUS
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[07:21] <mykii_> https://twitter.com/mykiimike/status/591953680758394880
[07:22] <edmoore> lovely job mykii_
[07:23] <edmoore> satisfying huh?
[07:24] <edmoore> is that a venus GPS?
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[07:29] <mykii_> edmoore, yup it is ;)
[07:29] <edmoore> fun
[07:29] <edmoore> i've used them in the past
[07:29] <mykii_> the venus ?
[07:30] <edmoore> yep
[07:30] <mykii_> i'v also added 2 cams
[07:30] <mykii_> 1 normal HD cam and another FliR thermal cam :)
[07:30] <mykii_> https://twitter.com/mykiimike/status/592631713483882496
[07:30] <edmoore> oh wow
[07:31] <edmoore> i'd be fascinated to see what you get from the FLIR
[07:31] <edmoore> especially through all that atmosphere
[07:31] <edmoore> when are you hoping to fly?
[07:31] <mykii_> actually i'm a heli pilot
[07:32] <mykii_> i attach the rpi under a 450 Forza
[07:32] <mykii_> and i live in France ;)
[07:32] <mykii_> https://twitter.com/mykiimike/status/592691721496047617
[07:32] <edmoore> oh cool
[07:33] <edmoore> so i did some thermal stuff in swizterland
[07:33] <edmoore> we had a big FLIR IR camera on the bottom of a robotic airship
[07:33] <mykii_> oh perfect !!
[07:33] <mykii_> i would love to have a bigger one ,)
[07:33] <edmoore> https://www.youtube.com/watch?v=K29dn0Mzspk
[07:33] <mykii_> do you live in .ch ?
[07:33] <edmoore> it was a big FLIR
[07:34] <edmoore> one of the expensive ethernet ones
[07:34] <edmoore> we were looking at the skin temperature of avalanche fields as the sun rose
[07:34] <edmoore> no i live in Oxford UK now
[07:34] <edmoore> tho half my family are french
[07:34] <mykii_> wow !!
[07:34] <Vaizki> !!
[07:34] <mykii_> awesome
[07:35] <mykii_> then you speak french ;)
[07:35] <edmoore> ha very badly
[07:35] <edmoore> it's got worse and worse as i've got older
[07:35] <mykii_> ye if you don't practice it then you loose it
[07:36] <edmoore> https://www.dropbox.com/s/44pfa3emos9edbc/IMG_0205.JPG?dl=0
[07:36] <edmoore> this is the electronics pod
[07:36] <edmoore> the big grey thing at the bottom is the camera
[07:36] <edmoore> then a PC104 with a core2duo (this was a few yrs ago) for the computer vision processing
[07:37] <mykii_> then the transcoding was made on the fly ?
[07:37] <mykii_> what system you used for ?
[07:38] <edmoore> for transcoding the video?
[07:38] <mykii_> yup
[07:38] <edmoore> custom
[07:38] <edmoore> so i used to be in the real-time computer vision lab at my university
[07:38] <mykii_> no ffmpeg ?
[07:38] <mykii_> perfect ;)
[07:38] <edmoore> so that thing had an optical camera and a thermal camera, and it did a 3d reconstruction of the surface as it flew over
[07:38] <edmoore> and then put the thermal info ontop of the 3d terrain model
[07:38] <edmoore> so that was all saved in a custom format
[07:39] <mykii_> awesome :))
[07:39] <edmoore> bit i think for saving video we used ffmpeg but plugged into the library written by my colleague Ed Rosten - libCVD
[07:39] <edmoore> libCVD can talk to almost anything that makes an image and just turn it into a pointer to pixels so you can run computer vision algorithms
[07:39] <edmoore> it's basically all the boilerplate code
[07:40] <mykii_> actually i'm looking for a low latency way to diffuse my video directly on the web
[07:40] <mykii_> but using webm i have 2-3 seconds of lags
[07:41] <edmoore> ah, i can't help you much there - don't know much about encoding
[07:41] <mykii_> i use my own PGM decoder on the RPI ... the delay is perfect but it seems to be ffmpeg the problem
[07:42] <mykii_> and now what are you doing at 0xford ?
[07:43] <edmoore> i'm a research engineer now in rocket propulsion
[07:43] <edmoore> space and rockets are my first love, and ballooning is how i got in
[07:43] <edmoore> though i don't do much ballooning anymore
[07:43] <edmoore> well, nothing really
[07:44] <mykii_> exelent ;)
[07:44] <mykii_> we have to keep in touch
[07:44] <mykii_> any twitter account ?
[07:44] <edmoore> well i'm always here
[07:44] <edmoore> i've been on this irc channel nearly 10 years now
[07:44] <mykii_> heh
[07:45] <edmoore> it's a good channel
[07:45] <edmoore> i do have a twitter but i basically never use it
[07:45] <edmoore> i am read-only
[07:45] <mykii_> ok
[07:45] <edmoore> https://twitter.com/eroomde
[07:45] <edmoore> for what it's worth
[07:45] <mykii_> good good ;)
[07:46] <mykii_> my next goal on the RPI is to add a PWM breakout for HV Servos and try to pilot automaticaly my chopper hehe
[07:47] <edmoore> oh a model chopper!
[07:47] <edmoore> rather than one with you in it
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[07:48] <mykii_> :)
[07:49] <edmoore> yeah autopiloting the chopper would be really fun
[07:49] <edmoore> possibly an expensive tuning process :)
[07:51] <mykii_> hahaha yep that's why i stopped to use class 70 chopper (710mm blades) for a 45 class (450mm blades)
[07:51] <mykii_> cheapest is better
[07:52] <edmoore> i had a raptor50 once
[07:52] <edmoore> i crashed it a lot
[07:52] <mykii_> if you don't play on simulator before you die ;)
[07:52] <edmoore> yep!
[07:52] <mykii_> i did 3 years of simul before taking a chopper IRL
[07:52] <edmoore> this was about 10 yrs ago
[07:54] <mykii_> edmoore, i'v to move and manage my daugther now ;)
[07:54] <mykii_> its been a pleasure to meet you ! ;)
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[07:55] <Vaizki> I have a FLIR camera but I wouldn't fly it :)
[07:55] <edmoore> mykii_, and you!
[07:55] <edmoore> catch you around here again i hope
[07:55] <Vaizki> at least not on a balloon
[07:55] <edmoore> gtg myself
[07:55] <edmoore> ttfn
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[07:56] <mykii_> Vaizki, cool what kind of flir do you have ?
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[08:15] <Vaizki> E4 which is hacked to an E8+
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[08:15] <Vaizki> the hardware is the same on E4 and E8
[08:15] <Vaizki> there is a software based noise generator and resolution downsampling to cripple the E4
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[08:28] <mykii_> Vaizki, nice ;)
[08:30] <Vaizki> hacking it is basically getting some files off the internal memory, modifying them and resigning them with a hash
[08:31] <Vaizki> then put them back on the FLIR and reboot
[08:32] <Vaizki> the camera runs windows ce.. but can be booted into a RNDIS mode where you get an ip connection and ftp to the camera from a usb cable...
[08:33] <Vaizki> so not too hard to work with
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[08:51] <LunarWork> hello
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[09:20] <SpacenearUS> New position from 03MONDO-3 after 0317 days silence - 12http://tracker.habhub.org/#!qm=All&q=MONDO-3
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[09:23] <sq5kvs> Hi
[09:23] <sq5kvs> So, where is the progress? I'm inconsolable ....
[09:25] <fsphil> swimming with the fishies
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[09:26] <sq5kvs> hi edmoore
[09:26] <edmoore> yoyo sq5kvs
[09:27] <sq5kvs> Its confirmed?
[09:29] <edmoore> what is?
[09:29] <sq5kvs> that progres swiming with fishies now :D
[09:29] <sq5kvs> Progress
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[09:32] <edmoore> ah right
[09:32] <edmoore> nice
[09:32] <edmoore> wonder if there was any footage
[09:33] <sq5kvs> I can't se any confirmation on spaceflight
[09:33] <fsphil> http://www.bbc.co.uk/news/science-environment-32635037
[09:33] <sq5kvs> only russian TAS has
[09:33] <LunarWork> UAE reported they want to send a Mars Orbiter in 2020
[09:33] <craag> LunarWork: Oh nice :)
[09:33] <craag> (my parents live in abu dhabi)
[09:34] <LunarWork> yea
[09:34] <LunarWork> it's called "Hope"
[09:34] <edmoore> why do they do that!?
[09:34] <LunarWork> http://en.wikipedia.org/wiki/Mars_Hope
[09:34] <edmoore> hope is a boring name
[09:34] <edmoore> should be
[09:34] <edmoore> marshammad
[09:35] <fsphil> LunarWork: I too want to send an orbiter to mars in 2020
[09:36] <fsphil> they have a bit more money than me though
[09:36] <LunarWork> yea
[09:36] <edmoore> i too would like to send an orbiter
[09:36] <edmoore> i'd be fine with earth though
[09:36] <sq5kvs> fsphil: Yea, and in the next news TAS will tell that they restore controll under Progress
[09:37] <fsphil> hehe
[09:37] <fsphil> "Progress made a controlled landing..."
[09:37] <lz1dev> ^ aye
[09:37] <sq5kvs> fsphil: Yea, somthing like
[09:37] <Vaizki> conscious impact
[09:39] <sq5kvs> but Im inconsolable, because I'm on 52*N :D
[09:39] <sq5kvs> missed oportunity
[09:39] <edmoore> hopefully the mars orbiter will miss opportunity
[09:39] <fsphil> ah you southerners
[09:41] <LazyLeopard> How far south do you have to go before you count as north again, I wonder (or not)... ;)
[09:41] <sq5kvs> fsphil: But London is on 51,5N :D
[09:41] <fsphil> I'm at 54.65 :)
[09:42] Action: fsphil waits to be out-latituded
[09:42] <sq5kvs> hm , ok :)
[09:42] <edmoore> furthest i've been is 70
[09:42] <edmoore> lowest is 6 or 7
[09:42] <fsphil> SpeedEvil can beat me
[09:43] <fsphil> I've been negative latitude
[09:43] <fsphil> never further north than edinburgh though
[09:43] <sq5kvs> O was on 34.8S . It's enough?
[09:43] <sq5kvs> I was
[09:43] <daveake> highest I've been is about 64
[09:43] <fsphil> -33 for sydney
[09:44] <sq5kvs> not Sydney :)
[09:44] <daveake> -45 for me
[09:45] <fsphil> NZ?
[09:45] <daveake> yup
[09:45] <fsphil> nice. would love to go there some time
[09:45] <daveake> If you're flying to Oz sometime, do it
[09:46] <daveake> This was a rok trip for a week but I added 2 weeks holiday to it
[09:46] <daveake> work
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[09:47] <edmoore> oh i mean abs(lowest)
[09:47] <edmoore> not lowest
[09:48] <daveake> We got a cheap heli trip there https://www.flickr.com/photos/daveake/6728651061/in/album-72157628924156287/
[09:48] <LazyLeopard> Oh, abs(lowest) is zero for me.
[09:48] <daveake> We paid for a basic flight and shared it with soeone who paid full whack (i.e. including the snow landing)
[09:50] <LunarWork> cool!
[09:51] <sq5kvs> Cool, but..
[09:51] <sq5kvs> Iceland is much closer :)
[09:52] <LazyLeopard> Lowest somewhere round S35 on the south side of Western Australia near Albany
[09:53] <LazyLeopard> Very cool, Dave.
[09:53] <sq5kvs> If You prefer glaciers of cours
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[10:04] <sq5kvs> daveake: https://www.flickr.com/photos/daveake/6729542663/in/album-72157628924156287/ - amazing
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[10:11] <fsphil> layers
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[10:22] <JR_> Can anyone help with a error launching dl-fldigi under linux?
[10:23] <JR_> compiled from source and getting error with --hab switch
[10:23] <JR_> ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave Caught signal 11
[10:26] <SpacenearUS> New vehicle on the map: 03EA5URA-11 - 12http://tracker.habhub.org/#!qm=All&q=EA5URA-11
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[10:48] <JR_> ALSA lib pcm_dmix.c:1022:(snd_pcm_dmix_open) unable to open slave Caught signal 11, anyone able to help?
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[10:58] <LazyLeopard> JR Sounds like it's not compiled in a way compatible with the sound system on the box you're trying to run it on. Pules audio is probably to blame.
[10:59] <LazyLeopard> Pule audio...
[10:59] <LazyLeopard> Pulse audio (sheesh - can't type today)
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[11:07] <mfa298> JR_: you may want to try different variations of the source (if you pulled from git try the DL3.1 tag as well as head as things might have changed) - although head also has had some issues decoding rtty
[11:08] <JR_> so compile without pulseaudio
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[11:10] <LazyLeopard> More likely, make sure pulseaudio is alive on your machine. Like systemd and its friends, it's one of the almost-unavoidable evils on the new linux...
[11:11] <JR_> yeah installed
[11:11] <JR_> running
[11:12] <mfa298> which distro are you runing ?
[11:12] <JR_> ubuntu gnome
[11:12] <Kryczek> shouldn't it be using some pulseaudio lib then instead of alsa?
[11:13] <mfa298> there's some instructions on the wiki for building on recent ubuntu's that should work
[11:13] <mfa298> !wiki build_ubuntu
[11:13] <SpacenearUS> 03mfa298: No results for your query
[11:13] <mfa298> https://ukhas.org.uk/projects:dl-fldigi:build-ubuntu#building_stable_version_on_ubuntu_1404
[11:15] <cm13g09> afternoon mfa298
[11:15] <mfa298> damn is it afternoon already
[11:16] <JR_> I'll give that a go, was working yesterday, then broke. That doc looks familar
[11:16] <cm13g09> it is mfa298
[11:16] <cm13g09> and we still don't have a conservative majority :P
[11:16] <SpeedEvil> cm13g09: functionally, we do
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[11:17] <cm13g09> SpeedEvil: true
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[11:20] <SpeedEvil> I mean yes, if there werse shock upsets in a large majority of the to-be-declared seats, they may end up with a dominant minority such that every single opposition MP has to vote against a measure to overturn
[11:20] <SpeedEvil> But - well - it's more likely that someone will shoot cameron and IDS and ... in the head.
[11:21] <cm13g09> SpeedEvil: point
[11:21] <LazyLeopard> Given what some of the UKIP folk have been saying....
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[11:41] <SpacenearUS> New vehicle on the map: 03VK2HBV - 12http://tracker.habhub.org/#!qm=All&q=VK2HBV
[11:44] <UpuWork> it a majority now cm13g09
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[11:59] <SpacenearUS> New vehicle on the map: 03DG8AR_chase - 12http://tracker.habhub.org/#!qm=All&q=DG8AR_chase
[12:00] <gonzo_> in the US they assasinate their politicians. Here we just write a strong letter to the times
[12:02] <LunarWork> see you later!
[12:02] <UpuWork> technically the scottish assasinated Ed Milliband gonzo_ :)
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[12:10] <LazyLeopard> Well, you could argue that Milliband used the Scots as his weapon of choice...
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[12:11] <LazyLeopard> Oh, there does seem to have been quite a bit of leadership suicide, doesn't there...
[12:12] <edmoore> all gone yep
[12:12] <mattbrejza> before today, had a party increased their share of the MPs for their second term in office?
[12:12] <adamgreig> yes
[12:12] <adamgreig> thatcher
[12:12] <adamgreig> was the last time
[12:12] <LazyLeopard> A leadership suicide hat trick.
[12:13] <edmoore> although she started with a decent majority
[12:14] <mfa298> although Farage might be doing an Arnie (If he runs in the leadership contest again)
[12:15] <mattbrejza> oh ok
[12:16] <SpeedEvil> mattbrejza: Also blair IIRC
[12:16] <SpeedEvil> err
[12:16] <SpeedEvil> maybe not
[12:16] <SpeedEvil> nvm
[12:17] <sq5kvs> hi guys
[12:17] <sq5kvs> please help me :)
[12:17] <mattbrejza> harold wilson did it in 1974 too...
[12:17] <mattbrejza> so yea not that uncommon
[12:17] <UpuWork> whast up sq5kvs ?
[12:17] <daveake> Paddy Ashdown needs to find hat recipes now
[12:18] <sq5kvs> I'm trying to find historical (month - two in past) maps of weather fronts, over europe (especially mediterranean sea).
[12:18] <SpeedEvil> What for?
[12:18] <mattbrejza> in his defence he did say only if its marzipan
[12:18] <mattbrejza> SpeedEvil: http://www.mirror.co.uk/usvsth3m/paddy-ashdown-refuses-eat-hat-5658572
[12:18] <sq5kvs> I mean fronts maps, not tepmerature colour maps, precipitations, ect
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[12:34] <fsphil> http://openwebrx.org/ looks fun
[12:35] <craag> fsphil: I've looked at that before
[12:35] <craag> When I last looked, it streamed the entire I/Q bandwidth to the browser
[12:36] <daveake> gulp
[12:36] <craag> "Todo: Currently, clients use up a lot of bandwidth. This will be improved later."
[12:38] <daveake> Client*s* ? :)
[12:39] <craag> Ha, it's an academic project of course :P
[12:39] <SpeedEvil> In a way that opens awesome options - but...
[12:39] <craag> Sure it works fine on JANET...
[12:40] <SpeedEvil> you mean all the demodulation and filtering and ... is done in javascript or whatever>?
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[12:40] <SpeedEvil> Or do you just mean that the demodulated signal is not compressed
[12:40] <daveake> Yeah JANET has a tad more bandwidth these days than when I first met it :)
[12:41] <craag> SpeedEvil: I didn't look at it at all deeply - jsut saw the i/q bandwidth streaming and noped out.
[12:41] <daveake> " The system first went live in April 1983, hosting about 50 sites with line speeds of 9.6 kbit/s."
[12:41] <craag> I've been making trips across to the uni buildings recently to upload stuff.
[12:41] <craag> I don't have card access to get in.
[12:42] <craag> But can get 300mbps eduroam outside :)
[12:42] <daveake> When I have lots to upload I put an SD card in an envelope, and send it to Upu :.
[12:43] <craag> by carrier pidgeon I assume
[12:43] <fsphil> don't be silly
[12:43] <fsphil> he uses an owl
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[12:44] <SpeedEvil> https://www.youtube.com/watch?v=XeFxdkaFzRA
[12:44] Action: SpeedEvil rewatches
[12:48] <michal_f> owls are not what they seem ...
[12:59] <JR_> Great finally got dl-fldigi compiled and working
[13:00] <JR_> Just having bit of trouble getting it to decode audio from gqrx
[13:02] <JR_> here's what I'm seeing..http://imgur.com/6psFpaW
[13:02] <fsphil> you'r in FM mode in gqrx
[13:03] <fsphil> needs to be USB
[13:03] <edmoore> upper sexy bum
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[13:06] <fsphil> usually sounds better
[13:07] <JR_> hmmm got no sound now
[13:08] <fsphil> you'll likely have to retune
[13:08] <fsphil> there's a audio volume slider somewhere, turn that up a bit too
[13:12] <JR_> getting sound now and clearer lines in fldigi
[13:14] <JR_> getting random data but not telemetry yet
[13:15] <JR_> http://imgur.com/eDRQFjT
[13:16] <fsphil> your rtty parametesr are wrong in dl-fldigi
[13:16] <fsphil> parameters*
[13:17] <michal_f> Does dl-fldigi has a feature to live send decoded text to some other program ? through socket or whatever ...
[13:18] <daveake> yes
[13:19] <JR_> Dave this is a PITs+ board ^ using the parameters from your site can you see the problem?
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[13:22] <craag> JR_: Reduce the RTTY Shift to 600hz
[13:22] <craag> (Then the thin red overlay lines, will line up with the thickest red signal lines)
[13:27] <michal_f> daveake: through XML-RPC Control ? I found it in lfdigi docs
[13:30] <JR_> craag: tried that close to red lines but not getting data
[13:32] <SpacenearUS> New position from 03PI_SKY_PLUS after 036 hours silence - 12http://tracker.habhub.org/#!qm=All&q=PI_SKY_PLUS
[13:32] <craag> JR_: Is that you ^^ ?
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[13:36] <JR_> No my board is on my desk in cambridge with no GPS attached
[13:36] <craag> Ok
[13:36] <craag> JR_: Try clicking the 'Rv' button down in the bottom right of fldigi
[13:36] <craag> If that doesn't work - post another screenshot please
[13:39] <JR_> http://imgur.com/JUA1PmY
[13:40] <craag> JR_: What's the baudrate set to on the Pi?
[13:41] <JR_> 300
[13:41] <craag> ok
[13:41] <JR_> Let me double check
[13:42] <sq5kvs> this waterfall in dlfldigi looks like looped,
[13:42] <craag> After that, try lowering the volume a bit so the diamond in the bottom rightof fldigi is green, not red, try turning rv off.
[13:42] <craag> godo spot sq5kvs
[13:42] <craag> *good
[13:43] <craag> what the heck has happened there
[13:43] <craag> ah
[13:43] <craag> pulseaudio?
[13:43] <sq5kvs> anyway I don't know what kind of emission was there
[13:43] <mfa298> JR_: if you got the source from git are you using the head version or the DL3.1 tag ?
[13:43] <sq5kvs> on windows it's happening by bad drivers or something like that
[13:44] <JR_> Yeah the DL3.1 tag
[13:44] <craag> JR_: Are you using pulseaudio to route the audio between them?
[13:44] <JR_> yes
[13:45] <craag> Ok, there's a known bug with the resampling that can cause data that looks and sounds good, but is undecodable
[13:45] <sq5kvs> :)
[13:45] <craag> If you have a 3.5mm audio cable that you can use to route your audio out -> audio in, that would identify the problem!
[13:46] <JR_> running on laptop with single 3.5mm jack
[13:48] <JR_> any other way to route the audio?
[13:50] <craag> Play it loud through the speakers and lsiten to the mic?
[13:50] <craag> </cringe>
[13:50] <craag> *might* work...
[13:50] <craag> I think there was a fix
[13:50] <craag> changing the defult sampling rate in one of the pulseaudio config files and then rebooting
[13:50] <craag> can't remember any more than that atm
[13:51] <adamgreig> there are allsorts of ok ways to fix this in pulse
[13:51] <adamgreig> one second
[13:51] <adamgreig> how are you using pulse to route it?
[13:52] <adamgreig> do you just have gqrx (?) output to your normal computer speakers output, then connect fl-dldigi input to monitor of the standard output?
[13:52] <adamgreig> (JR_)
[13:53] <JR_> craag: this http://hab.uggy.org/index.php?tag/gqrx
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[13:53] <Lunar_Lander> back
[13:53] <JR_> can't play on speakers without pissing everyone here off :-)
[13:53] <craag> JR_: That's the one I was thinking of - haven't tested it myself
[13:54] <adamgreig> ok, so
[13:54] <adamgreig> changing the sample rate might help and is worth a shot
[13:54] <adamgreig> have you tried that?
[13:54] <JR_> just about to rebot
[13:54] <adamgreig> don't need to reboot
[13:54] <adamgreig> just pulseaudio --kill will restart it
[13:54] <JR_> oh yeah
[13:54] <adamgreig> I found I had a much better time not using the hardware source/sink
[13:55] <adamgreig> so in pulseaudio you can make a virtual sink, direct gqrx to it, and connect fldigi to the monitor of the sink
[13:55] <adamgreig> and this way I can listen to music out of my speakers at the same time ;)
[13:55] <adamgreig> http://www.g0hww.net/2013/11/using-null-sinks-with-pulseaudio.html has instructions
[13:55] <edmoore> a new sparkfun widgetamatron for gsm stuff https://www.sparkfun.com/products/13120?utm_source=SparkFun+Customer+Newsletter&utm_campaign=64bdc33871-May8_newsletter&utm_medium=email&utm_term=0_fa5287abaf-64bdc33871-62476853
[13:56] <JR_> ok I'll have a play with that thanks adamgrieg
[14:03] <adamgreig> I found doing that ^ meant I didn't have to mess with the sample rates
[14:03] <adamgreig> because the null sink got the sample rate from gqrx or something?
[14:03] <adamgreig> it's a really annoying problem
[14:03] <adamgreig> the sooner dl-fldigi can read from an sdr directly the better
[14:09] <JR_> do the monitor settings persist
[14:10] <SpacenearUS> New position from 03KD0ZTV-1 after 033 days silence - 12http://tracker.habhub.org/#!qm=All&q=KD0ZTV-1
[14:13] <SpacenearUS> New position from 03GKCV3B after 0320 days silence - 12http://tracker.habhub.org/#!qm=All&q=GKCV3B
[14:22] <SpacenearUS> New vehicle on the map: 03STRATOS_CHEM - 12http://tracker.habhub.org/#!qm=All&q=STRATOS_CHEM
[14:26] <JR_> source/sink seems to partly work, I can't hear any sound, fldigi has some data but looks like this... http://imgur.com/6ndINmy
[14:28] <craag> JR_: Looks like input on dlfldigi is set to the microphone
[14:28] <craag> maybe?
[14:30] <adamgreig> yea it looks like fldigi isn't set to receive from the monitor of the gqrx null sink
[14:32] <SpeedEvil> http://www.nasa.gov/press-release/nasa-hosts-media-call-on-draft-solicitation-for-new-class-of-launch-services/
[14:32] <SpeedEvil> 'The Launch Services Program seeks to develop alternatives to this approach and help foster other launch services dedicated to transporting smaller payloads into orbit.
[14:34] <JR_> so in playback I've got dl-fldigi --> Built in Audio Analogue Stereo,GQRX --> sdrHAB, loopback --> Built in Audio Analogue Stereo
[14:35] <JR_> on recording fldigi <-- monitor of sdrHAB & Loopback <-- monitor of sdrHAB
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[14:39] <JR_> Got to dash now might pop back on later.
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[14:46] <michal_f> so what's the easy way to send RTTY strings from dl-fldigi to external programs ?
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[14:47] <michal_f> i've looked through docs and see several possibilities. xml-rpc server, scanning RX log file, or talker server ?
[14:47] <adamgreig> haha yea 'easy'
[14:47] <adamgreig> i used the xml-rpc server once
[14:47] <adamgreig> it was alright
[14:47] <adamgreig> probably scanning the log file is the easiest though :p
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[14:48] <eroomde> that's how the distributed listener system worked originally
[14:48] <adamgreig> if you're feeling brave and foolish you can also edit dl-fldigi to do what you want with the data, which is how the "dl-" part of it currently works
[14:48] <michal_f> there's supposed to be some perl script showing how to implelent xmlrpc, but i did not find it
[14:48] <eroomde> it was a python script that read the log file every so often
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[14:51] <michal_f> this "talker" stuff... it's supposed to send messages to some server? like IRC ?
[14:56] <Lunar_Lander> awesome science music https://vimeo.com/127083533
[15:04] <michal_f> bye
[15:04] <michal_f> .p
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[15:58] <baird> Potential bullseye with KD0ZTV..
[16:02] <SpacenearUS> New vehicle on the map: 03AA0WD-11 - 12http://tracker.habhub.org/#!qm=All&q=AA0WD-11
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[16:40] <jet_> Hello guys,
[16:40] <jet_> I was wondering, would I be able to use the following as a payload radio antenna? http://www.radiocoms.co.uk/shop?gclid=CLPsguzKssUCFejJtAodcHgAYg#!/~/product/id=38344650
[16:41] <craag> !wiki payload antenna
[16:41] <SpacenearUS> 03craag: Wiki page 03payload_antenna (guides) - 12http://ukhas.org.uk/guides:payload_antenna
[16:41] <SpacenearUS> 03craag: Wiki page 03projects:picoatlas:picoatlasi - 12http://ukhas.org.uk/projects:picoatlas:picoatlasi?s[]=payload&amp;s[]=antenna
[16:42] <craag> jet_: Check out the first link for how to make your own :)
[16:42] <jet_> Thank you, I am aware that I can do so and intend to
[16:42] <jet_> I am just curious as to whether I'd be able to use such an antenna?
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[16:42] <craag> Yes
[16:43] <craag> Although some are less-than-good due to rubbish construction
[16:43] <jet_> Would it work better than a handmade 1/4 whip with whire?
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[16:43] <craag> There's more chance of it not working at all
[16:43] <craag> On average a commercial one might be better tuned
[16:44] <craag> But at least with one you make yourself, you *know* it's 90% there
[16:44] <craag> And with rtty - that's good enough
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[16:45] <Geoff-G8DHE-M> The one you have linked to might not be as good most handheld aerials ar designed to keep the radiation in a horizontal plane rather than pointing upwards (or down when mounted on a HAB)
[16:46] <jet_> Okay, thanks
[16:46] <jet_> I am currently configuring a habduino
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[16:46] <jet_> I used the habduino_v4 software and I don't seem to be able to upload
[16:46] <jet_> I get a lot of not declared errors
[16:46] <jet_> and 'not named a type'
[16:47] <Geoff-G8DHE-M> do you mean in the log-tail from habhub ?
[16:47] <jet_> No, in the arduino software
[16:48] <Geoff-G8DHE-M> sounds like a library might not be available ?
[16:49] <jet_> I'll try updating my software...
[16:50] <Geoff-G8DHE-M> You have put the libraries.zip files in place to be called ?
[16:50] <jet_> I haven't got a libraries.zip file
[16:50] <Geoff-G8DHE-M> https://github.com/HABduino/HABduino
[16:51] <jet_> Ah... documentation didn't mention that!
[16:51] <jet_> Thanks, where should I put this zip file?
[16:52] <Geoff-G8DHE-M> No idea I don't use arduinos that much!
[16:52] <Geoff-G8DHE-M> It has the OneWire and DallasTemperature libraries in it.
[16:52] <Geoff-G8DHE-M> There also in the downloaded ZIp file
[16:52] <jet_> That seems like the error I'm getting.
[16:54] <jet_> Aha, I found something online that may help,
[16:56] <Geoff-G8DHE-M> Have you tried any of the normal arduino examples out? They include adding the required libraries to your system.
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[16:58] <Ian_> Library files in the project directory and Library files in the Libraries directory appear to be two different approaches. A mix of them can cause a lot of confusion
[16:59] <Ian_> I find that I have to rid myself of the Libraries directory to another place when dealing with some projects. The IDE will create an essentially empty Libraries directory, but it makes for a complicated existence.
[17:00] <Ian_> You can't have your cake and eat it at the same time as you will get all sorts of errors if you try unsuccessfully.
[17:02] <jet_> Okay, how should I do that?
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[17:05] <jet__> crashed :(
[17:05] <Ian_> Not entirely sure jet . I am unfamiliar with the HABduino software, but Upu should be able to advise. The danger manifests itself when you have library files that exist in the Libraries directory and in line in the project directory. /
[17:06] <Ian_> If you are working with a clean system then you shouldn't have a problem, but if you have been using libraries already you could be in a mixed environment which /
[17:06] <Ian_> isn't necessarily intuitive unless you have come across the problem before.
[17:06] <Geoff-G8DHE-M> Yup you need to load trhe libraries in via the IDE interface into the overall installation on the PC so they can be called as needed when compiling.
[17:07] <Ian_> Thanks on that Geoff
[17:07] <jet__> Thank you
[17:07] <jet__> It's compiled successfully now!
[17:08] <jet__> I unzipped then added each one manually
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[17:10] <jet__> Now it's quit
[17:10] <jet__> Which is good
[17:10] <jet__> It works and is trying to get a gps lock
[17:11] <Ian_> That sounds like good news. You may need a bit of time and clear sky for the GPS to see.
[17:12] <Ian_> Indoors may not be the best place for obtaining a GPS lock.
[17:13] <jet__> Okay, I'll probably use batteries
[17:13] <jet__> Do you know if I should use a battery pack for the habduino board AND the arduino itself, or just the supplied battery pack connected to the habduin shield?
[17:17] <Geoff-G8DHE-M> I would test it using the method in flight, batteries only.
[17:17] <Geoff-G8DHE-M> maybe cheaper batteries when the temperature isn't going so low!
[17:21] <jet__> Okay
[17:22] <jet__> GPS lock was a success outside!]
[17:24] <Ian_> Onwards and upwards jet__
[17:25] <Ian_> Test, test, test
[17:25] <jet__> Thank you... now I'm going to make a payload doc and test with my sdr tuner
[17:25] <jet__> See ya!
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[17:26] <Ian_> Have fun with it.
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[18:09] <SpacenearUS> New vehicle on the map: 03KC9PON-11 - 12http://tracker.habhub.org/#!qm=All&q=KC9PON-11
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[19:08] <SpacenearUS> New vehicle on the map: 03Bravo Virginia_chase - 12http://tracker.habhub.org/#!qm=All&q=Bravo%20Virginia_chase
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[19:33] <SpacenearUS> New vehicle on the map: 03Kc9pon-11_chase - 12http://tracker.habhub.org/#!qm=All&q=Kc9pon-11_chase
[19:34] Action: sumie-dh found another RS92-SGPL from Prague-Libus station today http://www.sumie-dh.cz/images/gallery/sonde-8-5-1.jpg
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[20:48] Nick change: fl_0|afk -> fl_0
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[21:46] <SpacenearUS> New vehicle on the map: 03Vega1JC_chase - 12http://tracker.habhub.org/#!qm=All&q=Vega1JC_chase
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[21:51] <Lunar_Lander> good night
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[22:41] <Laurenceb> http://www.astbearings.com/product.html?product=6705
[22:41] <Laurenceb> nice tool
[22:42] <Laurenceb> doh you need to give email, nvm
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[00:00] --- Sat May 9 2015