highaltitude.log.20130525

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[02:32] <heathkid> anything going on?
[02:33] <heathkid> other than N6ARA's launch tomorrow morning?
[02:33] <heathkid> http://aprs.fi/#!call=a%2FN6ARA-11&timerange=3600&tail=3600
[02:33] <heathkid> I'll be watching
[02:33] <heathkid> should be on spacenear.us too
[02:34] <heathkid> arco? around?
[02:34] <heathkid> I'd be interested in hearing more about the launch
[02:34] <heathkid> oopd
[02:34] <heathkid> s
[02:34] <heathkid> arko:
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[03:09] <heathkid> I really hate living in the wrong time zone
[03:09] <heathkid> :(
[03:09] <Randomskk> wake up earlier ;)
[03:09] <heathkid> though in the last few days there have been two HAB launches in Indiana and Illinois
[03:10] <heathkid> wake up earlier?
[03:10] <heathkid> I have to stay up late for the west coast folks... or be up really late for the UK
[03:11] <heathkid> I used to work at a job where the company was based out of Oz....
[03:11] <heathkid> sucked to be me
[03:11] <heathkid> I ended up working 24 hours a day until I fell asleep at the keyboard for a bit...
[03:12] <heathkid> I'd go to work, come home and eat dinner... Oz office would open (Perth)...and another day would begin...
[03:12] <heathkid> work all day... meetings all night
[03:12] <Randomskk> D:
[03:12] <Randomskk> rubbish
[03:13] <heathkid> UK is easy
[03:13] <heathkid> -4 or so... no worries
[03:13] <heathkid> I can deal with that
[03:13] <heathkid> but EST sucks when you're working with folks around the world
[03:13] <heathkid> I have to sleep sometime
[03:13] <heathkid> :)
[03:14] <heathkid> unfortunately... that's lately been when I should be at work
[03:14] <heathkid> I need a first launch....
[03:15] <heathkid> that'll help
[03:15] <heathkid> latest code doesn't work...
[03:15] <heathkid> well, it works but not well. I get anywhere from 2 to 10 minutes+ between packets....
[03:16] <heathkid> between the arduino sleeping and trying to hit a time slot with a GPS lock...
[03:16] <heathkid> eh...
[03:16] <heathkid> I'm thinking "stay awake" and add a couple more lithium AA's
[03:16] <heathkid> right?
[03:17] <Randomskk> probably easier
[03:17] <heathkid> my 808HD keychain camera alone is going to take 3 (unless I try to launch it with a larger Li-Poly)
[03:18] <heathkid> no... it doesn't cause *any* interference
[03:18] <Randomskk> that's good
[03:18] <heathkid> but haven't tested the latest v18 yet...
[03:18] <heathkid> shipping from Hong Kong might as well be by balloon...
[03:18] <heathkid> :)
[03:19] <Randomskk> hehe
[03:19] <heathkid> usually get them in 10 days or so
[03:19] <heathkid> I'm just ready to launch and waiting on the camera
[03:19] <heathkid> oh... probably need some gas too
[03:19] <heathkid> I hear that helps
[03:19] <Randomskk> I can't even imagine how bad the wait must have been for mail order in the 1800s
[03:20] <Randomskk> ten days would seem amazing :P
[03:20] <heathkid> lol... Pony Express from HK?
[03:21] <heathkid> still... 10 days is a LONG time
[03:21] <heathkid> got my 32GB Class 10 uSD card for it already
[03:21] <heathkid> HE or H?
[03:22] <heathkid> nothing's going to go boom
[03:22] <heathkid> and H is cheaper
[03:22] <heathkid> and better lift
[03:22] <Randomskk> either. He is more expensive but 'safer'. H requires an H regulator which you may not have and they're expensive
[03:23] <heathkid> I didn't think about that
[03:24] <heathkid> helium for first launch with 600g balloon then...
[03:24] <heathkid> safe and easy
[03:24] <heathkid> calculations put it at 102 minutes to burst at just over 100k ft.
[03:24] <Randomskk> He requires an He regulator of course but they're cheaper and often come with smaller bottles of gas
[03:25] <heathkid> buy or rent?
[03:25] <Randomskk> most things are usually rented. idk what most people do for this
[03:25] <heathkid> I've got a Kaymont 600 and 1200
[03:25] <Randomskk> small canisters of helium tend to come with small crappy regulators, but they work
[03:26] <Randomskk> at cusf we have (on long term loan from boc) two proper he regs
[03:26] <heathkid> well... around here... it's just *me*
[03:26] <heathkid> no University backing or clubs or friends or anyone who has ever done a HAB launch...
[03:27] <heathkid> received my Spheraschutes yesterday... they are very nice
[03:27] <heathkid> not sure if I'll connect them between the payload and balloon yet
[03:28] <heathkid> I still don't see how the burst balloon won't collapse the 'schute
[03:28] <heathkid> without a cutdown which I'm not using
[03:29] <heathkid> or it's just a big wad of streamer heading straight down...
[03:29] <heathkid> :)
[03:29] <heathkid> at least I *should* have video
[03:29] <heathkid> :P
[03:49] <heathkid> no comments?
[03:49] <heathkid> paraschute attached between the payload and the balloon or to the payload laying over the side?
[03:50] <heathkid> the Spheraschutes I have do have the HAB attachment...
[03:50] <heathkid> but I keep thinking things will get tangled up
[03:50] <heathkid> help?
[03:56] <Randomskk> it'l be fine
[03:57] <Randomskk> they work
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[04:16] <heathkid> which way?
[04:17] <heathkid> payload --> Spherachute --> ballon or ???
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[04:19] <heathkid> there's got to be some mass still attached to the top of the Spherachute after burst... right?
[04:19] <heathkid> or does it just work?
[04:33] <Randomskk> it just works
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[05:12] <heathkid> Randomskk: have you done HAB launches before?
[05:13] <heathkid> if yes... I'll trust you on that.
[05:13] <Randomskk> loads
[05:13] <Randomskk> most went ok
[05:13] <Randomskk> parachutes getting tangled can and does happen, sure
[05:13] <heathkid> if it doesn't... we'll at least get some awesome video of a terminal velocity descent! :P
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[05:14] <Randomskk> but in general you tie it up right and make sure it's not tangled to begin with and you'll be okay
[05:14] <steve_____> morning
[05:14] <heathkid> tie it up right?
[05:14] <heathkid> remember...
[05:14] Action: heathkid first launch
[05:14] <Randomskk> good morning steve_____
[05:14] <steve_____> does anyone know if BABSHAB is flying
[05:14] <Randomskk> not sure
[05:15] Action: heathkid is going for fast ascent to 100k+ ft. to burst and wants to retrieve the payload... first time.
[05:15] <heathkid> APRS for tracking
[05:16] <heathkid> calculations show with a 600g balloon with He and a <300g payload... 102 minutes to burst
[05:16] <heathkid> have either an 18" or a 24" Spherachute to use
[05:16] <heathkid> latest 808HD keychain camera onboard for video
[05:17] <heathkid> w/ 32GB class 10 uSD card
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[05:17] <heathkid> don't want to lost this stuff...
[05:17] <heathkid> lose
[05:17] <heathkid> and not sure about the battery on the 808
[05:18] <heathkid> comes with a 250mAH li-poly
[05:18] <heathkid> one hour of recording
[05:18] <heathkid> not enough
[05:18] <x-f> morning
[05:18] <Randomskk> stick a bigger lipo on it, or some AAs, whichever
[05:18] <heathkid> so I could easily swap it out for a larger li-poly... or rig up some Energizer Ultimate Lithium AA's...
[05:18] <heathkid> thoughts?
[05:19] <heathkid> will the lipo survive?
[05:19] <heathkid> a larger lipo is easiest
[05:19] <heathkid> and have many
[05:20] <heathkid> wouldn't have to mess with the charging circuitry, etc...
[05:20] <Randomskk> it'l most likely survive. is it going in some kind of box?
[05:20] <heathkid> yep
[05:20] <x-f> steve_____, BABSHAB will fly tomorrow morning 7am BST
[05:20] <Randomskk> s'fine
[05:20] <heathkid> okay
[05:20] <steve_____> ah nice one - thanks for letting me know
[05:21] <heathkid> and the HX-1 puts out enough heat on TX that it should keep it warm enough in the box
[05:21] <heathkid> I can't wait for this first launch under my belt...
[05:21] <heathkid> next is MUCH more ambitious... :)
[05:22] <heathkid> floater w/ solar cells
[05:22] <heathkid> first is the 600g... 2nd will be a 1200g
[05:23] <heathkid> 3rd will be a 1500g with multiple cutdowns for multiple payload drops
[05:24] <heathkid> 4th will be a ascent to burst... paraschute to stabalize... cutdown to release a parasail
[05:24] <heathkid> ...to return to launch site
[05:24] <heathkid> is that ambitious enough? :)
[05:25] <Randomskk> sure is
[05:26] <heathkid> yeah... I know you guys have hundreds of launches under your belts... I just dream big, hope for the best... but expect the worst. :P
[05:26] <heathkid> on video
[05:26] <heathkid> lol
[05:27] <heathkid> payload may include a rubber duck
[05:27] <heathkid> he's wearing a flight suit (not sure where I got it)
[05:27] <heathkid> I'm planning a 300g payload but am only at about 100g now with everything
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[05:28] <heathkid> but the 600g balloon is going up regardless...
[05:29] <heathkid> habhub says 102 minutes to burst at just over 100k ft.
[05:29] <heathkid> I'd be happy with that
[05:30] <heathkid> current predictions if I launched tomorrow (which I can't... no gas) puts it bursting less than a 20 minute drive from my launch site
[05:30] <heathkid> so I'm *hoping* for a 4 hour launch to recovery
[05:30] <heathkid> am I dreaming?
[05:31] <Randomskk> it's doable
[05:32] <heathkid> if I do fly the duck... he'll go up every time
[05:32] <heathkid> If *I* can't go to near-space... he can
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[05:33] <SP9UOB> morning!
[05:33] <heathkid> morning?
[05:34] <SP9UOB> could someone clear the map please
[05:34] <heathkid> it's 1:34 AM here... lol
[05:34] <SP9UOB> lol, its 7:34 here
[05:34] <SP9UOB> :-)
[05:34] <heathkid> where's here?
[05:34] <heathkid> not UK
[05:34] <SP9UOB> ok, time to go to launchsite
[05:34] <SP9UOB> heathkid: Poland
[05:34] <heathkid> ah
[05:35] <heathkid> spacenear.us link for your launch?
[05:36] <SP9UOB> @10:00 UTC - SP9UOB and SP9UOB-11 on aprs.fi
[05:36] <heathkid> awesome... I'll be tracking (I love this even though I can't "hear" it....)
[05:38] <heathkid> 5.72V? dang!
[05:39] <x-f> SP9UOB, good luck with the flight and all your many payloads!
[05:39] <heathkid> yep... good luck with the flight!
[05:41] <heathkid> what are you flying?
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[05:47] <x-f> he's flying APRS, RTTY on HF, RTTY solar-only, RTTY pico and also an ATV payload
[05:48] <heathkid> wow!
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[05:48] <heathkid> on HF?
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[05:49] <heathkid> what size balloon?
[05:49] <x-f> "29.494 MHz 50 baud 7n2 240 Hz Shift 500 mW output power - this should be receivable even in US (depends of propagation)"
[05:49] <x-f> 1600g hwoyee with hydrogen
[05:49] <heathkid> nice!
[05:50] Action: SpeedEvil is unsure if he woke up early or can't get back to sleep.
[05:50] <heathkid> I'll listen for it!
[05:50] <x-f> they have a hamfest there
[05:50] <heathkid> I still haven't decided on gas...
[05:50] <heathkid> He or H
[05:51] <heathkid> I'm leaning towards H
[05:51] <x-f> http://xa.yimg.com/kq/groups/6764416/sn/657808605/name/Keep-Calm-and-Carry-On.jpg
[05:51] <x-f> :)
[05:52] <heathkid> Hydrogen it is then...
[05:52] <heathkid> :)
[05:52] <heathkid> makes things easier...
[05:52] <heathkid> not really
[05:53] <heathkid> but yes
[05:53] <heathkid> I wanted to use H in the first place
[05:53] <heathkid> everyone kept telling me to use He
[05:54] <heathkid> one of the guys at work said to use Argon... no chance of losing my paylod. LOL!
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[05:59] <G4MYS> Good morning!
[05:59] <Randomskk> a lovely morning it is too
[05:59] <Randomskk> blue sky at last
[06:00] <heathkid> morning?
[06:00] <heathkid> did I forget to sleep?
[06:00] <heathkid> 2 AM... darn time zones....
[06:00] <x-f> 9am here :)
[06:00] <heathkid> lol.... good morning
[06:00] <x-f> morning, 'MYS
[06:00] Action: heathkid heads off to bed...
[06:00] <G4MYS> Yes its a bright morning here in Southampton & monitoring 70cm for action and morning x-f!
[06:01] <heathkid> have great launches and awesome flights....
[06:01] <heathkid> I'll track as I can and wish one of those were mine...
[06:01] <heathkid> good night / good morning.... :)
[06:02] <x-f> good night
[06:03] <x-f> G4MYS, if you're waiting for BABSHAB, it was postponed to tomorrow morning
[06:03] <G4MYS> Yes I was just checking I assume early start that suits me fine!
[06:04] <G4MYS> and of the others, any news went to bed early last night with splitting headache!
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[06:07] <x-f> uXABEN scheduled for 11:30, 434.350
[06:10] <G4MYS> OK Many thanks Andy
[06:10] <x-f> MONDO-1 "at around 11:00 ish", 434.475
[06:11] <x-f> then there's a flight in the afternoon in Belgium
[06:12] <G4MYS> X-F shame only got one computer! can only track one at a time should be able to hear Belguim one so its a ay indoors!
[06:13] <x-f> G4MYS, it will be 14:30 GMT
[06:14] <x-f> and there's another one in Poland in an hour, that will fly a HF tracker on 29.494, if you're interested
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[06:15] <x-f> eh, no, 10 UTC
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[06:15] <x-f> heh, somebody should put this info on the spacenear.us, too many to keep the track of all of them
[06:17] <G4MYS> Ill drag out my good 101Z that can hear a mouse at 100yds wonder hwat sort of aerial they use! but yes Space near us seems to be behind,.. but as they says its only a hobby!
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[06:37] <griffonbot> @jonirusta96: Ahora al BEC a ver si aprobecho la mañana #HABE2 [http://twitter.com/jonirusta96/status/338182054556606464]
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[06:38] <fsphil> morning all
[06:38] <Randomskk> good morning
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[06:55] <griffonbot> @uxuepuerto: A puntito de empezar el #Habe2 .... Sorte on para mi [http://twitter.com/uxuepuerto/status/338186657016713216]
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[07:32] Nick change: MoALTz_ -> MoALTz
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[07:44] <ibanezmatt13> Good Morning :)
[07:46] <fsphil> morn
[07:47] <fsphil> boo, wspr-x source code comes with no Makefile, README and the only document is a .docx file
[07:47] <Randomskk> haha
[07:47] <Randomskk> lovely
[07:47] <ibanezmatt13> I bought the NTX2 and uBlox 6 GPS lastnight
[07:47] <eroomde> nice
[07:47] <eroomde> all down hill from here
[07:48] <ibanezmatt13> haha :)
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[07:48] <ibanezmatt13> I'm pretty sure I know how to get the GPS working; the radio might require a little assistance though
[07:49] <eroomde> it's easier than the gps!
[07:50] <fsphil> it is actually, there are less gotchas
[07:50] <fsphil> fewer*
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[07:53] <eroomde> how is prog Randomskk?
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[07:55] <Randomskk> eroomde: I think the software is now all ready
[07:55] <Randomskk> so getting my teeth into the sysadminy bits of getting my cluster set up now
[07:55] <Randomskk> just booted the master server on ec2
[07:55] <Randomskk> configure that, then start booting GPU instances
[07:55] <Randomskk> might need to tweak my client software to properly use the two GPUs plus 16 CPUs on the boxes
[07:55] <Randomskk> can't be too hard
[07:55] <ibanezmatt13> It looks like a good idea to program these little ATMega chips for HAB flights.
[07:55] <Randomskk> shame CPUs are so terrible at 2d cache locality of reference though
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[07:56] <eroomde> ibanezmatt13: it is
[07:57] <ibanezmatt13> Can you use any programming language?
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[07:57] <eroomde> practically, no
[07:57] <eroomde> usually just C or C++ (or assembler)
[07:57] <Randomskk> good answer
[07:57] <Randomskk> just use C, basically
[07:58] <ibanezmatt13> I should really learn C
[07:58] <Randomskk> though as eroomde alludes to, in theory they could be programmed in any language you wanted, so long as the program fit into their memory
[07:58] <Randomskk> such is the way of general purpose computers
[07:58] <ibanezmatt13> Would Python work?
[07:58] <Randomskk> (in practice don't do this)
[07:58] <Randomskk> no
[07:58] <ibanezmatt13> Ah, so in the long term I should learn C
[07:59] <Randomskk> I mean, yes, in theory, you could write some python source code and get it to run on a microcontroller
[07:59] <Randomskk> but I mean, there's no way of doing that
[07:59] <Randomskk> just that - the python program is a computer program, and there's no theoretical reason it couldn't be run on the AVR
[07:59] <Randomskk> I'm overcomplicating the issue
[07:59] <Randomskk> just use C
[07:59] <Randomskk> it's really your only option
[07:59] <ibanezmatt13> I've always wondered how you program these chips. How do you get the program on to it?
[07:59] <Randomskk> a programmer (sorry)
[07:59] <Randomskk> which is a device
[07:59] <Randomskk> that connects to the chip and to your computer (via usb, typically)
[08:00] <Randomskk> and sends the program to the chip
[08:00] <Randomskk> some chips have a bootloader on board
[08:00] <Randomskk> (such as the Arduino AVRs)
[08:00] <Randomskk> and in those, the chip talks to your computer directly, then programs itself
[08:00] <ibanezmatt13> ah cool, that makes sense. My Dad mentioned the workd eprom when I said programmable chips
[08:00] <ibanezmatt13> whatever that is
[08:00] <Randomskk> sure
[08:00] <daveake> That's cos your dad is old, like me
[08:00] <Randomskk> that's relevant
[08:00] <Randomskk> but yea :P
[08:00] <ibanezmatt13> ahah
[08:01] <ibanezmatt13> That's something I'd look into when I get a little more experienced
[08:02] <daveake> In olden days the program was put in an EPROM chip using, well, an EPROM programmer, and in most cases if you wanted to change the program you had to erase the EPROM under a UV light first
[08:02] <ibanezmatt13> Oh right, didn't know that
[08:02] <daveake> Easier now :)
[08:02] <PE7ER> i did my apple charracter generator eprom back then ;)
[08:03] <ibanezmatt13> daveake: I ordered the NTX2 and GPS lastnight
[08:03] <daveake> cool
[08:03] <ibanezmatt13> should arrive on Monday or Tuesday
[08:03] <ibanezmatt13> And I'm off school all week so that should be good
[08:04] <Randomskk> is it half term?
[08:04] <Randomskk> wow
[08:04] <ibanezmatt13> it is indeed
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[08:21] <anerDev> Good mormona guys !
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[08:38] <ibanezmatt13> With the ublox GPS and the NTX2, do I connect GPS to RXD, but both NTX2 and GPS to TXD?
[08:38] <daveake> yes
[08:38] <ibanezmatt13> ok, thanks. I'm drawing some schematics
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[08:40] <eroomde> is the gps happy to ignore 50 baud stuff to the ntx2?
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[08:40] <PE7ER> did someone compile fldigi HAB version to raspberrypi yet?
[08:41] <daveake> eroomde Yes
[08:41] <daveake> I flew this configuration twice
[08:41] <mfa298> PE7ER: it's been tried but the pi isnt fast enough
[08:41] <daveake> Nowadays I use i2c for the GPS which is a much cleaner solution
[08:41] <eroomde> nice
[08:42] <PE7ER> i do have the regular fldigi running ok mfa298
[08:42] <daveake> bit-banged i2c, sadly, as the RPi i2c driver can't handle clock-stretching bu the ublox at random times
[08:43] <daveake> well arbritrary rather than random
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[08:43] <mfa298> for the dl-fldigi version you can compile it and run it but it wont decode anything as the cpu gets maxed out
[08:44] <PE7ER> i have trouble even compiling (linux noob here)
[08:44] <fsphil> a lot of the cpu seems to be wasted in the UI
[08:44] <daveake> Someone clever should speak to Eben about that ... he said he'd be happy to do some GPU work to get it running
[08:44] <fsphil> there's a version of wayland coming out for the Pi soon that might help
[08:44] <daveake> e.g. offloading some maths
[08:45] <daveake> and yes that Wayland thing might give the UI a boost
[08:45] <Randomskk> I don't think it would be very easy to just "offload some maths" from dlfldigi
[08:45] <Randomskk> depends what "some work" is really :P
[08:45] <fsphil> easier to write from scratch :)
[08:45] <Randomskk> quite possibly
[08:45] <PE7ER> i run normal fldig without the fft stuf it decodes 50 rtty fine
[08:45] <mfa298> have you got the regular fldigi decoding data is is it just running. It could be interesting to see if the regular fldigi will decode the hab rtty
[08:45] <daveake> His words were something like "if you have a function that's using up all the cpu hand it to me and I'll code it for the GPU"
[08:45] <Randomskk> bold claim :P
[08:46] <Randomskk> hand him main()
[08:46] <daveake> I know :D
[08:46] <fsphil> hah
[08:46] <daveake> There were witnesses :)
[08:46] <daveake> (Upu)
[08:46] <Randomskk> (does it even have a proper interface to the gpu for computation? like opencl?)
[08:46] <daveake> dunno
[08:47] <daveake> If you mean "open" for "proper", no
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[08:47] <mfa298> when I had a quick look at the pi gpu stuff it looked like it might all be propriatry and partially hidden by the nda
[08:47] <Randomskk> I mean "exists at all" really
[08:47] <daveake> Well I think he meant they'll add it on
[08:48] <daveake> They do seem to have $$s to pay clever people to do shit like this
[08:48] <Randomskk> gpus aren't just magic go faster boxes though
[08:48] <Randomskk> well they are
[08:48] <Randomskk> but they only help things that can be parallelised well enough to make up for the poorer per-thread performance
[08:48] <daveake> sure
[08:49] <Randomskk> I'm on an EC2 box with two tesla GPUs and 16 CPU cores
[08:49] <Randomskk> now *this* is a magic go faster box
[08:49] <daveake> :)
[08:49] Action: Randomskk sets it up as _fast as possible_, the per hour cost is sad
[08:50] <nick_> I read an interesting paper the other day about using GPUs for track finding (basically fitting lots of curves through lots of points).
[08:51] <nick_> Using GPUs made things faster, not just because they could run a whole lot of stuff in parallel, but because it enabled completely different methods to do the fitting.
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[08:52] <nick_> So, instead of looking at lots of seeded tracks and seeing if there are points that are consistent with a track lots of time it would look at all the points and do some transforms and find some maxima in the transformed space to find all the tracks at once.
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[08:57] <eroomde> i am finding the same thing with FPGAs
[08:57] <eroomde> you have to think about things differently
[08:58] <fsphil> you don't even see the code anymore?
[08:58] <eroomde> just the matrix
[08:58] <nick_> Thinking like an FPGA is much harder than thinking like a computer.
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[09:00] <eroomde> it's very different
[09:00] <eroomde> it's *possibly* easier though :)
[09:00] <eroomde> if you were to start with two babies brought up by wolves
[09:01] <eroomde> or whatever that anthropologist control-experiment thing is
[09:02] <Babs> Morning all - GoPro spot meter - on or off?
[09:02] <eroomde> there's a question. can you manually set the exposure?
[09:03] <Babs> Nope
[09:03] <eroomde> probably whatever is the most general metering mode then
[09:03] <eroomde> you don;t really want it trying to make a black sky grey
[09:03] <eroomde> but... i don;t really know
[09:04] <daveake> don't use spot metering
[09:04] <Babs> it is an interesting bit of kit. Very hardy, very practical, very versatile. But in terms of actual technology, its back in 2005
[09:04] <daveake> if it has matrix metering use that
[09:04] <daveake> suspect it's average or spot tho
[09:06] <Babs> Thanks daveake - i didn't use it last time but was a bit disappointed with the results http://www.flickr.com/photos/91049302@N00/7155797215/in/set-72157629918448066
[09:07] <Babs> There isn't any info on it, only "use spot metering if you are filming inside a car to avoid the sky outside being overly bright"
[09:07] <fsphil> still going up tomorrow Babs?
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[09:07] <Babs> I thought it maybe had some parallels where it is filming in one direction into blackness, but the sun is at the edges of the picture and drowns everything out
[09:08] <Babs> but it might just be that when the thing is spinning quickly the camera can't keep up in terms of auto changing the exposure
[09:08] <daveake> ping Randomskk
[09:09] <Randomskk> hi
[09:09] <daveake> My PIE6 flight doc links to a payload doc with the wrong baud rate. Everything else correct. Easiest way to fix?
[09:09] <Randomskk> gimme the doc ID and the change to make
[09:09] <daveake> cheers justasec
[09:10] <daveake> flight doc 76986d0487a9ec83551661019bf9d9e6
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[09:10] <Randomskk> payload is the interestingone
[09:10] <Randomskk> nvm
[09:11] <Randomskk> k
[09:11] <Randomskk> new baud?
[09:11] <daveake> edc70f0f2902656e1a5c1500f3e03cda
[09:11] <daveake> 600
[09:11] <Randomskk> 600 baud, 600 shift?
[09:11] <daveake> yep
[09:11] <Randomskk> pushing it with the isi there
[09:11] <Randomskk> ok
[09:11] <Randomskk> saved
[09:11] <daveake> worked ok before :)
[09:11] <daveake> tvm :)
[09:11] <Randomskk> in theory it should just work
[09:11] <Randomskk> but it should also be the smallest spacing you can really get away with before you start compromising yourself
[09:12] <daveake> yes
[09:12] <Geoff-G8DHE> Looks like Upu had his Oats outside this morning https://twitter.com/AnthonyStirk/status/338216077412687872/photo/1
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[09:18] <steve_____> Hello, so a few flights planned for today then
[09:19] <steve_____> Is Mondo-1 the 1st this morning?
[09:19] <daveake> yeah busy weekend
[09:19] <Hix> has Babs finalised a time/date?
[09:19] <daveake> tomorrow morning
[09:19] <daveake> early
[09:19] <steve_____> it was not this morning..
[09:20] <Hix> oh oki 07:00
[09:26] <costyn> can someone update the infobox on the tracker with this weekend's flights?
[09:27] <Geoff-G8DHE> MONDO, SEBA & Falcon are they ones left today
[09:28] <Geoff-G8DHE> I believe
[09:28] <Babs> Hi hix - 0700 tomorrow morning
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[09:28] <Hix> gotcha cheers Babs
[09:29] <Hix> here's hoping there is little cloud to d othe camera justice.
[09:29] <Hix> Out of interest, what lens are you launnching?
[09:29] <Babs> just the stock one. I've got a telephoto but i'm not that brave
[09:30] <Babs> wide angle would be interesting but i don't have one
[09:30] <Babs> although at the res the camera takes I could wide angle it after the event in the computer
[09:30] <costyn> Babs: do you think you'll have enough trackers that early? :)
[09:31] <Babs> its the only window the CAA gave me costyn - 0400-0700
[09:31] <Hix> that something like an 18-55 zoom then?
[09:31] <costyn> Babs: ah... ok, I'll be awake then anyways, might be able to track, depending on the weather (at in-laws, so mobile setup in car :)
[09:31] <Babs> i've got a spot and a gprs/gsm too so should be covered even if i can't pick it up
[09:31] <costyn> ok good
[09:32] <Babs> thanks costyn - i think the plan is to try and race ahead of it (it goes east before it goes west) so i'm not underneath it until right at the end of the flight so at least i should be able to pick it up
[09:33] <Hix> babs I'll try and get things set up tonight so it can have a chance of tracking, though oxon is a bugger as the antenna has to go through the whole house on that earing
[09:33] <Babs> yes hix exactly. focus to infinity, then switch to manual focus and tape the lens in place so it can't rotate
[09:33] <Babs> thanks hix
[09:33] <Hix> cool. I'm really interested to see the results. You using manual exposure?
[09:35] <Babs> yes, auto white balance, auto iso. there is probably an optimum setting but the inability to test beforehand makes it difficult
[09:36] <Geoff-G8DHE> If you get a good sequence and want a Pano made let me know!
[09:36] <Babs> e.g. you would think daylight setting is best on white balance, but presumably that aims to cope with the fact that white light is scattered through the atmosphere, so when its above the atmosphere is it really the right white balance to take?
[09:36] <Babs> so auto everything apart from focus and take lots and lots of photos and cross fingers is the order of the day
[09:37] <Babs> plus i'm shooting in RAW so there is scope for changing a bunch of the settings after the event anyway in the computer
[09:37] <costyn> Babs: sorry, I missed it, what camera are you using?
[09:37] <Babs> eos 550d
[09:37] <costyn> woa
[09:37] <Geoff-G8DHE> I that case you don't have a problem using RAW
[09:37] <costyn> that's quite a heavy camera :) (i have one myself)
[09:37] <Geoff-G8DHE> Oh nice you really want a 8mm FE on thatthen!
[09:37] <costyn> not sure I'd be comfortable sending it up hehe
[09:38] <daveake> I have a 10-20 that would fit
[09:38] <daveake> And no you can't :)
[09:38] <Hix> I'd be inclined to go manual exposure.
[09:38] <G4MYS> For us who want to track tomorrow morning, any chance of the freq to listen on and aprox time please Andy G4MYS
[09:38] <costyn> Babs: I've used it in skydiving, lemme check the settings I used there (also in the sky, although at around 4km with no/little clouds below)
[09:39] <Geoff-G8DHE> 434.074 is published ?
[09:39] <Hix> just hunt out peoples images and try to get the exif from them, I'l wager that virtually all above the cloudbase are about the same EV
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[09:41] <G4MYS> thanks Geoff
[09:43] <Geoff-G8DHE> Im planning to leave the Rx running overnight and hope its accurate ;-)
[09:46] <Babs> G4MYS, 434.075 - will post what it has shifted to on here tomorrow shortly after launch
[09:47] <G4MYS> Thanks Babs will be about and try to track it!
[09:47] <Geoff-G8DHE> Post it to my Rx then as well, telepthay is fine!
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[09:51] <Babs> ? geoff-g8dhe. Don't understand?
[09:51] <Babs> thats great, thanks g4mys - where are you located?
[09:52] <Geoff-G8DHE> Joke I will leave the Rx on overnight, please send the Rx the frq, by telepthay ...
[09:52] <G4MYS> southampton
[09:52] <Babs> ahhh ok. sorry, its been an early morning start ;-)
[09:52] <Geoff-G8DHE> Understand even earlier tomorrow I suspect!
[09:52] <Babs> good, not so far away
[09:54] <steve_____> I should be able to track tomorrow am - I am always up that early anyways
[09:55] <steve_____> are you launching at 0700
[09:56] <G4MYS> usually up at 0515 so no problem!
[09:56] <Babs> Thanks steve. yes, 0700 is the end of my launch window so definitely by that time
[09:56] <Babs> Just going through my awesomely comprehensive kit checklist. Just spotted one thing not on it......
[09:56] <Babs> balloon
[09:56] <steve_____> well I am not too far north up the M3
[09:57] <Babs> world record lowest HAB flight was on the cards till i spotted that one
[09:57] <G4MYS> might need a ballon?
[09:57] <daveake> Babs You wouldn't be the first to leave the balloon behind :/
[09:58] <daveake> I've done that twice; fortunately my launch site is 200m from home
[09:58] <steve_____> hopefully I will be able to track successfully today for the 1st time so I can be confident of tracking tomorrow am
[09:58] <daveake> mondo on ze map
[09:59] <Babs> its ok, i had important things like a multimeter on it in priority
[09:59] <Hix> http://stratosvision.com/docs/HAB_Exif_Info.txt I've done a tiny bit of collating exif from various flights
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[10:00] <Babs> thanks hix - were all those auto or did you try a different manual setting each launch?
[10:00] <Hix> they're not mine. I've just gone through peoples photos and found ones that contain exif
[10:01] <Hix> I'm hgoing to add to it, probably as xls
[10:01] <Babs> presumably all auto then?
[10:01] <Hix> with a link to the pics
[10:01] <Hix> i believe cuddykid did manual two launches ago
[10:01] <Hix> and also Lunar on his oh-so-famous maiden
[10:02] <cuddykid> what's that?
[10:02] <Babs> i've seen one (maybe adam?) where the settings were wrong i think?
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[10:02] <Hix> hi, did you use manual on your pics a couple of flights ago
[10:02] <cuddykid> ah, manual exposure settings
[10:02] <Hix> yes
[10:02] <cuddykid> yes - and it didn't turn out well
[10:02] <Babs> and the photos were blown out?
[10:02] <cuddykid> auto is best
[10:02] <cuddykid> http://www.flickr.com/photos/acudworth/sets/72157629171216193/
[10:02] <Babs> i'm going auto
[10:03] <Babs> in corporate finance we call it the "spray and pray"
[10:03] <cuddykid> didn't focus well at high altitudes
[10:03] <cuddykid> ha
[10:03] <costyn> Babs: hope this helps, these settings: http://imgur.com/dUayoCb were used for this picture: http://i.imgur.com/uEP510m.jpg
[10:04] <cuddykid> nice
[10:04] <cuddykid> someone doing a felix
[10:04] <Babs> very Point Break
[10:04] <costyn> cuddykid: it's my wife :)
[10:04] <steve_____> So Mondo is flying :)
[10:04] <cuddykid> ah :)
[10:05] <costyn> Babs: I used a small aperture to make sure everything's in focus
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[10:05] <costyn> Babs: and manual focus of course, set to infinity, and high shutter speed to make sure I don't get any motion blur
[10:05] <Babs> Going completely manual focus, just setting to infinity before i launch
[10:05] <costyn> Babs: yea that's the best
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[10:05] <Babs> costyn - ideally the whole gimbal thing should hopefully keep it stable
[10:06] Action: Hix now wants to set up a database of flight pics to get statistical info from exif data
[10:06] <Babs> lots of free carbon fibre available at St Devote this morning
[10:06] <Geoff-G8DHE> Agree with that!
[10:06] <Hix> but it'll be hellishly manual
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[10:06] <costyn> Babs: camera focus algorithms get confused when in the sky when there's nothing to focus on; in skydiving, 'auto-focus' is often referred to 'out-of-focus' (say it out loud0
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[10:07] <radim_OM2AMR> tomek, good luck
[10:08] <costyn> Babs: I would set the shutter speed to at least 200 or so, you're still going to get some motion
[10:08] <costyn> Babs: how heavy is your payload?
[10:08] <Babs> hix - would be pretty easy to set up say 10 pictures with a variety of good and bad results to use as a baseline. then people could categorise their photos according to which one of the 10 it was closest too, and upload the exif data
[10:08] <Babs> should be able to see some patterns from that
[10:08] <Babs> costyn - 3.6
[10:09] <Babs> although over quite a large area, so density is pretty low
[10:09] <costyn> Babs: KG? :)
[10:09] <Babs> yes
[10:09] <costyn> new record for heaviest payload? :)
[10:09] <costyn> Babs: what balloon?
[10:09] <Babs> I've also put a bunch of tethers on it from various bits to various bits to keep it all together in case of failure
[10:09] <Babs> 2kg
[10:10] <costyn> cool
[10:10] <Hix> thinking Babs
[10:10] <Hix> I feel a webpage coming up
[10:10] <OZ1SKY_Brian> radim_OM2AMR do you hear the 10m payload from SP9UOB?
[10:11] <Babs> costyn - http://www.flickr.com/photos/91049302@N00/8685754749/in/set-72157632733154985
[10:11] <radim_OM2AMR> OZ1SKY_Brian not yet
[10:11] <Hix> Are people happy for me to use their pictures from flickr, blogs etc for the page [I'll credit and link of course]
[10:11] <radim_OM2AMR> OZ1SKY_Brian have you dial freq ?
[10:11] <OZ1SKY_Brian> radim_OM2AMR ok, please let us know the dial freq when you do
[10:11] <Hix> just to use as a resource
[10:11] g4sgx-iain (577378bd@gateway/web/freenode/ip.87.115.120.189) joined #highaltitude.
[10:11] <Babs> hix - i need to learn the dark arts of web design too
[10:11] <costyn> Babs: thats really cool and clever!
[10:11] <Hix> on the Wiki
[10:11] <OZ1SKY_Brian> radim_OM2AMR it should be around 29.494
[10:11] <Babs> costyn - *theoretically*
[10:11] <radim_OM2AMR> OZ1SKY_Brian I know, tuning around
[10:12] <Hix> Babs: to start use wordpress or similar
[10:12] <Babs> if i get it back it will be cool and clever
[10:12] <costyn> Babs: :)
[10:12] <G4MYS> anyone like to give us a percise freq for mondo please
[10:12] <Babs> if it get it back I'm phoning up Betty Grissom and telling her that Liberty Bell needs to make some space in the Smithsonian for it
[10:12] <Graham_G3VZV> 434.472
[10:12] <costyn> Hix: I don't htink you want to do it by hand
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[10:12] <costyn> Hix: if you collect the pix, I'll extract the exif data from it automatically
[10:12] <G4MYS> many tnx de G4MYS
[10:12] <costyn> Hix: even just URLs would be sufficient
[10:13] SP9UOB (5efec6ef@gateway/web/freenode/ip.94.254.198.239) joined #highaltitude.
[10:13] <costyn> Babs: well at the moment I'm very impressed :)
[10:13] <g4sgx-iain> whats mondo's qrg?
[10:13] <SP9UOB> hi
[10:13] <SP9UOB> need help
[10:13] <Babs> hix, feel free use mine. There are a couple of third party apps that pull images off flickr accounts automatically
[10:13] <SP9UOB> sp9uob-1 was splitted (second ballon
[10:13] <OZ1SKY_Brian> SP9UOB Hi Tom
[10:13] <GMT> MONDO on 434.472 -ish
[10:13] <Babs> doing it one by one is tedious
[10:13] <Hix> cheers babs
[10:13] Neavey (~Neavey@cpc9-aztw25-2-0-cust234.aztw.cable.virginmedia.com) joined #highaltitude.
[10:13] <Babs> thanks costyn
[10:13] <SP9UOB> could somebody split the flight doc
[10:14] <SP9UOB> OZ1SKY_Brian: running 29.494 USB
[10:14] <Hix> i've got Adobe bridge, should be man enough for it
[10:14] <G4MYS> got data on 434.475MH
[10:14] <SP9UOB> sp9uob-1 is sollar only powered
[10:14] <OZ1SKY_Brian> SP9UOB im monitoring, nothing yet
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[10:14] <OZ1SKY_Brian> SP9UOB what call does the 10m payload have?
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[10:15] <PB0AHX-Herman> GM all
[10:16] <SP9UOB> OZ1SKY_Brian: sp9uob-2
[10:16] <radim_OM2AMR> SP9UOB dial freq ? on 29.434 Mhz ?
[10:16] <griffonbot> Received email: Adrian Hicks "[UKHAS] Request for permission to use images from peoples flights"
[10:16] <SP9UOB> radim_OM2AMR: yes
[10:17] <radim_OM2AMR> tnx
[10:17] <SP9UOB> radim_OM2AMR: and sp9uob-1 is Your red
[10:17] <SP9UOB> solar only powered
[10:17] <radim_OM2AMR> great
[10:18] <daveake> mondo not updating?
[10:19] <Graham_G3VZV> yup the tracker has stopped
[10:20] <Graham_G3VZV> mondo height actually 4566
[10:20] <OZ1SKY_Brian> radim_OM2AMR you mean 29494
[10:20] <radim_OM2AMR> OZ1SKY_Brian 494 yes
[10:21] <SP9UOB> radim_OM2AMR: got smething/
[10:22] <radim_OM2AMR> not yet, many qrm here
[10:23] <fsphil> 29.434 USB?
[10:23] <G4MYS> is it me or is it drifting badly?
[10:25] <steve_____> Almost: $$MONDO-1,102,10:24:39,+5211.1590,-00014.1264,06206,7.4,241.,05.0,+10,100*59 :)
[10:25] <radim_OM2AMR> fsphil 29.4943
[10:26] <chrisstubbs> G4MYS: MONDO-1? It is drifting slightly, but nothing bad
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[10:26] <fsphil> radim_OM2AMR: that the USB dial freq or the actual freq?
[10:26] <radim_OM2AMR> dial
[10:26] <fsphil> thanks
[10:26] <radim_OM2AMR> upper line on 1500 Hz
[10:26] <G4MYS> OK having to shift VFO to keep up!
[10:27] <fsphil> nothing at all there
[10:27] <fsphil> but I think my PV panels are causing noise
[10:31] <G4MYS> changed my power supply to see if that improves RX !
[10:32] <g4sgx-iain> ist decode
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[10:32] <GMT> MONDO-1 nowtracking again on Spacenear
[10:33] <fsphil> anyone getting green decodes of Mondo that are not appearing on the map?
[10:34] <GMT> Phil: probably most people are!
[10:34] <G8KNN> yes, I'm decoding, but nothing on map
[10:34] <Geoff-G8DHE> Yes plenty been Rx for several mnutes but nothig showing
[10:34] <fsphil> can you paste one of the lines that give you a green decode?
[10:34] <G8KNN> $$MONDO-1,131,10:33:50,+5209.4058,-00020.5496,08800,033.1,246.,04.7,-02,100*53
[10:34] <Graham_G3VZV> yes lots of decodes here but not appearing on the tracker..
[10:35] <G4MYS> Iam on 50 /475 you may have to do own RTTY shift
[10:35] <GMT> I've had a 100% decode since message 059, but never appeared on the Receivers list
[10:35] <G8KNN> The string in green is truncated wrt the actual string
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[10:36] <G8KNN> Green string $$MONDO-1,137,10:35:44,+5209.0865,-00021.9918,09303,
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[10:36] <g4sgx-iain> Yes, Green string is missing last few strings
[10:36] <m3eav> picking up rtty here on Portland island sw-uk on 434.475,
[10:36] <Geoff-G8DHE> What checksum is it using I only get two digits
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[10:37] <number10> its the pause mid string I think
[10:37] <fsphil> xor
[10:37] Nick change: number10 -> number10_M0MDB
[10:37] <fsphil> it's a bad choice, don't use it :)
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[10:37] <GMT> there's a pause in decoding just after the altitude
[10:37] <fsphil> GMT: that's exactly it
[10:39] <Graham_G3VZV> oooh big fades on Mondo
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[10:40] <m3eav> $$MONO-1.171,10:40:10,+5208.4281,-00024.633w,545,023.0,234.-53.9,-08100+5A
[10:40] <m3eav> down here on Portland island on vertical
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[10:42] <G4MYS> noted space near us not keeping up with tracker callsigns..
[10:43] <junderwood_M0JCU> Not showing up in Habitat either (http://habitat.habhub.org/stats/)
[10:44] <Hix> wha tbaud is Mondo?
[10:44] <m3eav> 50
[10:45] <Geoff-G8DHE> Looks like there maybe Nulls in the data
[10:45] <OZ1SKY_Brian> radim_OM2AMR still 29494.3?
[10:45] <steve_____> yay green - 1st one ever :)
[10:46] <radim_OM2AMR> OZ1SKY_Brian yes
[10:46] <OZ1SKY_Brian> tnx
[10:46] <fsphil> radim_OM2AMR: is it drifting at all or steady?
[10:46] <radim_OM2AMR> not decoding yet
[10:46] <radim_OM2AMR> steady sigs
[10:46] <GMT> well done Steve, just a shame that it's not tracking on Spacenear ... nothing like seeing your name/id appear on the screen
[10:46] <Geoff-G8DHE> They get thru when there isn't a Nulkl as just happened
[10:47] <steve_____> is it not tracking correctly - I can see the ballon
[10:47] <steve_____> balloon*
[10:48] <OZ1SKY_Brian> radim_OM2AMR USB just to be sure?
[10:48] <radim_OM2AMR> $$$$SP9UOB-2,110,10:47:44,5110.114438,01823.763117,15946,31,287,11,507,0,4b*C863
[10:48] <radim_OM2AMR> USB
[10:48] <OZ1SKY_Brian> ok
[10:48] <GMT> it updated a few moments ago ... that's only the 3rd update for this flight; usually updates the balloon position every 10 seconds or so
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[10:50] <GMT> another update
[10:51] <Hix> there's something horrible to the left of mondo on sdr http://imgur.com/5l342Oy
[10:51] <Hix> hence i asked about the baud - it sounds weid
[10:51] <Hix> but getting lots of greens
[10:51] <radim_OM2AMR> OZ1SKY_Brian inverted V better than vertical dipole
[10:52] <OZ1SKY_Brian> radim_OM2AMR ok ive only got a CP6 up atm
[10:53] Nick change: daveake -> daveake_M6RPI
[10:54] <fsphil> haha
[10:54] <daveake_M6RPI> at last <rubs hands in glee>
[10:54] <number10_M0MDB> :)
[10:54] Action: Hix needs more than a single 12.1" screen
[10:54] <m3eav> probably some ism equip
[10:55] <radim_OM2AMR> daveake_M6RPI, congrats to the callsing :-)
[10:55] <Hix> very apt daveake_M6RPI
[10:55] <radim_OM2AMR> sign :-|
[10:55] <gonzo_p> do we have a qrg fro mondo?
[10:55] <Hix> 434.474.9
[10:55] <GMT> mondo on 434.475
[10:55] <gonzo_p> ta
[10:55] <PE7ER> nice@ Dave congrats!
[10:57] <GMT> I thought Dave was already licensed?
[10:57] <radim_OM2AMR> licensed for HAB-bing
[10:57] <fsphil> and driving
[10:57] <number10_M0MDB> someone said he was out on license
[10:57] <number10_M0MDB> dunno who ;)
[10:58] Tommo (51b2ea40@gateway/web/freenode/ip.81.178.234.64) joined #highaltitude.
[10:58] <daveake_M6RPI> lol
[10:58] <daveake_M6RPI> mondo freq plz?
[10:58] <Tommo> 434.075
[10:58] <Hix> 434.474.9
[10:58] <daveake_M6RPI> oh. read.
[10:58] <fsphil> failing totally to hear anything on 10m. heading for mondo
[10:58] <steve_____> i have 434.515
[10:59] <Hix> I have to say the cosycave dongle is waaay better then my AR8000
[10:59] <daveake_M6RPI> I see it
[10:59] <Tommo> my cosycave working a treat
[11:00] <daveake_M6RPI> fady innit?
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[11:01] <fsphil> 474? odd frequency
[11:01] <daveake_M6RPI> An Upu-modified NTX2 I believe
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[11:02] <fsphil> poor thing
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[11:02] <GMT> UPU modified to include some extra nulls!
[11:03] <fsphil> SQ2KLN just appeared in the atlantic ocean
[11:04] <fsphil> got mondo *just*
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[11:06] <m3eav> where are you fsphil
[11:06] <m3eav> i'm on portland island (swuk)was decoding nice but faded now
[11:06] <fsphil> m3eav: middle of n.ireland, MI0VIM
[11:06] <fsphil> it's not strong enough to decode yet
[11:07] <daveake_M6RPI> I think mondo is the only payload I can remember with delays /during/ a sentence
[11:07] <fsphil> but I'm getting fragments
[11:07] <m3eav> yeah i had it decoding reasonable but not good enough right now, get occasional word
[11:07] <fsphil> daveake_M6RPI: not even a delay, it's transmitting 0x00 there
[11:07] <fsphil> caused some habitat problems
[11:07] <daveake_M6RPI> oh
[11:07] <daveake_M6RPI> ah
[11:07] <daveake_M6RPI> why?
[11:07] <fsphil> it seems to treat it as an invalid character
[11:07] <fsphil> which is fair
[11:08] <daveake_M6RPI> Sure, I mean "why is he sending them?"
[11:11] <daveake_M6RPI> Mondo nearly circled a roundabout there
[11:11] <fsphil> not sure
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[11:12] <fsphil> possibly using an interrupt and sending as two strings, with a slight delay
[11:12] <daveake_M6RPI> Yes that's kinda what I was thinking ... timer int doesn't have data yet so it sends nulls till it does
[11:13] <fsphil> or sending as two strings, including the terminator
[11:13] <fsphil> which is less likely
[11:13] <daveake_M6RPI> how many nulls each time?
[11:13] <fsphil> just the one
[11:13] <fsphil> unknown if the second half is also followed by a null
[11:13] <daveake_M6RPI> ok could be that then
[11:14] <fsphil> still very weak here
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[11:15] <g6gzh> the pauses are always in the same places, even in good decodes, so it's not simply that (a pause shouldn't decode as a (null) character if there isn't a start bit)
[11:15] <fsphil> it's transmitting an actual null
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[11:15] <fsphil> a byte of 0x00
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[11:16] <g6gzh> OK, but the only place I've seen it truncate is after altitude whereas there are several (4 ?) pauses
[11:17] <GMT> I think there's 3 nulls in each string
[11:17] <fsphil> there may be a pause too
[11:17] <fsphil> but a pause (where it holds the stop bit) won't decode to a byte
[11:17] <fsphil> and should actually work here
[11:17] <g6gzh> fsphil: that's what I meant
[11:17] <Geoff-G8DHE> its after sequence#, altitude & ascent rate
[11:17] <GMT> 1st null after the sequence number
[11:18] <GMT> 2nd null after the altitude
[11:18] <fsphil> I can't hear it yet so can't really tell :)
[11:18] Nick change: LazyLeopard -> LazyL_M0LEP
[11:18] <fsphil> actually can someone make a recording of a few strings
[11:18] <g6gzh> there's certainly a pause after sequence, but I've not yet seen it truncate at that point
[11:18] <daveake_M6RPI> will do
[11:18] <g6gzh> does dl-fldigi log strings to disk ?
[11:19] <fsphil> nope
[11:19] <fsphil> there's an option to save the received text window
[11:19] <fsphil> I'm seeing those fade outs
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[11:19] <fsphil> they're quite rapid
[11:20] <Geoff-G8DHE> can't see them in dl-fldigi received text even when looking at it as hex
[11:20] <Darkside> hmm
[11:20] <fsphil> yea you'd need to modify it a bit
[11:20] <OZ1SKY_Brian> radim_OM2AMR where on the waterfall do you have it on 29494.3?
[11:20] <fsphil> there is code there to time the gap between decoded characters
[11:21] <fsphil> ah ha, I can hear rtty now
[11:21] <fsphil> nearly decoding too
[11:22] <steve_____> copy and paste fails with the null :)
[11:22] <radim_OM2AMR> OZ1SKY_Brian upper bar on 1400 hz
[11:22] <OZ1SKY_Brian> radim_OM2AMR ok, not hearing anything here
[11:22] <fsphil> yea your text window will only hold valid ascii characters :)
[11:22] <radim_OM2AMR> OZ1SKY_Brian a lot of qrm here too
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[11:27] <fsphil> faded quite a bit here
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[11:31] <fsphil> first decode
[11:33] <OZ1SKY_Brian> radim_OM2AMR sp bursted, no luck this time
[11:34] <fsphil> mondo is very spinny
[11:34] <fsphil> has it burst?
[11:34] <OZ1SKY_Brian> fsphil SP9UOB-2 has
[11:35] <fsphil> mondo must be in very choppy air
[11:39] <Hix> alt still increasing
[11:39] <chrisstubbs> Hix feel free to use my pics
[11:39] <Hix> cheers dude
[11:39] <chrisstubbs> let me know if you want the raws and i will stick them on your ftp or somthing
[11:40] <chrisstubbs> by raws i mean raw jpegs, not flickr'd ones
[11:40] <Hix> nah ta, it's just going to be a guide to manual exposures. based on a lot of exif data
[11:40] <fsphil> $$MONDO-1,340,[2]11:40:01,+5207.1583,-00041.1493,27990,[3][null]027.0,286.,05.1,[3]-16,100*57
[11:40] <fsphil> numbers in [] are gaps, measured in bytes
[11:40] <fsphil> [null] is a 0x00 byte
[11:41] <Hix> $$MONDO-1,340,11:40:01,+5207.1583,-00041.1493,27990,027.0,286.,05.1,-16,100*57
[11:41] <Hix> odd not seing that
[11:41] <fsphil> I just hacked that into my dl-fldigi :)
[11:41] <Hix> ahh
[11:41] <Hix> smart arse
[11:42] <fsphil> so yea, three delays
[11:42] <g6gzh> 2c:,:32:2:38:8:34:4:37:7:34:4:2c:,:00::30:0:32
[11:42] <fsphil> before the time, after altitude and before the temperature
[11:42] <fsphil> with a null after the gps alt
[11:42] <g6gzh> so a null after altitude
[11:42] <Hix> someone was saying that hulls were good in preamble as it helped dl-fldigi keep track
[11:42] <Hix> *nulls
[11:42] <fsphil> yes
[11:42] <fsphil> that was probably me :)
[11:42] <fsphil> they're good between strings
[11:42] <Hix> ah
[11:42] <fsphil> just not during
[11:42] <gonzo_p> me too
[11:43] <Hix> hulls are good for boats and yachts
[11:43] <fsphil> fldigi can't track the frequency of just a stop bit
[11:43] <gonzo_p> help to clear junk out of the uart
[11:43] <gonzo_p> between fields they would help get lock again, but you would already have a corruption, so won't help get a green packet
[11:44] <fsphil> there is no null at the end of the string
[11:44] <fsphil> so I'm not sure how he's managed to get one in there
[11:44] <gonzo_p> nulls before $$ are good too
[11:44] <gonzo_p> help get a lock
[11:44] <fsphil> yep
[11:44] <fsphil> any other byte and fldigi can start decodign on the wrong bit
[11:44] <fsphil> and it can take a few bytes before it gets it right
[11:44] <g6gzh> the only null I'm seeing is after altitude
[11:45] <fsphil> that's the only null byte
[11:45] <fsphil> but there are also pauses
[11:45] <fsphil> which are different
[11:45] <g6gzh> yes, they're not causing a decode problem
[11:45] <gonzo_p> with 8 bit, I use 3 nulls on preamble. Think it needs 2, so 3 is a good rule of thumb
[11:45] <fsphil> though I would argue that pauses are not great either
[11:46] <fsphil> right I'm going to get some food, bbl :)
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[11:48] <LazyL_M0LEP> Pauses within strings are a little disconcerting...
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[11:49] <gonzo_p> pauses give more chance of corruption
[11:49] <LazyL_M0LEP> ...but pauses between strings are fine.
[11:49] <gonzo_p> if a glitch trpis the 'clutch' on the uart sw
[11:49] <gonzo_p> trips
[11:50] <gonzo_p> yep, between are fine
[11:54] <junderwood_M0JCU> wtf
[11:55] <junderwood_M0JCU> QRM, I think
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[11:57] <GW8RAK> Just got in from bike ride. Is there just one launch today?
[11:57] <GW8RAK> Thought there were going to be more
[11:57] <Geoff-G8DHE> In the UK yes, but several in Poland
[11:57] <Rob_m0dts> sounds like it just burst
[11:57] <GMT> in theory, 4 today
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[11:57] <GW8RAK> Thanks.
[11:58] <GW8RAK> Where's ibenazmatt13? Thought he would have been here today.
[11:58] <Graham_G3VZV> mondo has burst i see
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[12:01] <griffonbot> Received email: "[UKHAS] Re: BABSHAB launch - Great Tew, Saturday 25th May-Monday 27th
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[12:02] <RocketBoy> decided to scratch the XABEN launch - got the other Temco guys away though
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[12:05] <gonzo_p> bugger, lost mains. (old dear unplugged me!) laters
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[12:07] <griffonbot> Received email: Steve Aerospace "Re: [UKHAS] Launch Announcement: XABEN50"
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[12:10] <GMT> Is there a chase-team for the MONDO flight>
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[12:13] <Hix> who is mondo on here?
[12:14] <g6gzh> The tracker seems to be accepting the truncated uploads now. Did somebody tweak the parser?
[12:16] <number10_M0MDB> when hi comes on he uses that nickname
[12:16] <number10_M0MDB> he
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[12:16] <number10_M0MDB> mick_mondo
[12:18] <Hix> ahh, seems I work a couple of miles away from his location
[12:18] <chrisstubbs> g6gzh, Daniel Richman set up a hotfix
[12:21] <g6gzh> Excellent, just noticed the change in behaviour 8-)
[12:22] <Geoff-G8DHE> Gone for me
[12:23] <g6gzh> Audible, but too much fading to decode
[12:23] <steve_____> gone for me as well
[12:23] <GMT> gone for me too ... was coming down rapidly
[12:24] <daveake_M6RPI> That went down quicker than George Michael in a Range Rover
[12:24] <daveake_M6RPI> I still see it
[12:24] <steve_____> I did quiet poorly on the tracking then 24 lines
[12:24] <daveake_M6RPI> gone now
[12:25] Nick change: daveake_M6RPI -> daveake
[12:26] <GMT> Daveake, surely that's not a new licence for you, I thought you were already licenced?
[12:27] <daveake> No, I wasn't
[12:27] <Graham_G3VZV> mondo seems to have "landed"
[12:27] Nick change: LazyL_M0LEP -> LazyLeopard
[12:27] <Geoff-G8DHE> Of for some lunch bbl
[12:28] <daveake> It was about time I got round to it!
[12:28] <GMT> I dunno why, but I thought you were a G8 or G4!
[12:29] <daveake> I don't know why either :p
[12:29] <Graham_G3VZV> methinks that it is up a tree cos it is still strong with me
[12:30] <g6gzh> "landed" in a tree probably Graham_G3VZV
[12:30] Nick change: number10_M0MDB -> number10
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[12:32] <LazyLeopard> Aye. Tree-ed
[12:36] <G4MYS> OK then so who is next then?!
[12:36] <steve_____> is it pifalcon?
[12:37] <g4sgx-iain> Any chance of it making it over the water i wonder..
[12:38] <g6gzh> Supposed to launch at 15:30 UK time
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[12:42] <GMT> any confirmed launch location? ... met ballons from Belgium usually launch from an airbase southeast of Brussles
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[12:55] <gonzo___mob> i thouhht it was gillian tailforth (?) in a range rover
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[13:04] Nick change: Slartibartfast_ -> Guest75013
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[13:07] <GW8RAK> That brings back memories
[13:15] <griffonbot> Received email: John Graham-Cumming "Re: [UKHAS] Request for permission to use images from peoples flights"
[13:15] <costyn> daveake: congrats on your license and call sign, I like it :)
[13:16] <daveake> hah tvm :)
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[13:16] <daveake> That was the fifth callsign I tred
[13:17] <costyn> daveake: ah you had others in mind then?
[13:17] <daveake> In order, HAB, DPA (initials), PIE
[13:17] <costyn> ah
[13:18] <costyn> those would've been good yea
[13:18] <daveake> Aside from HAB, actually I prefer RPI
[13:18] <costyn> yea very recognizable
[13:18] <costyn> daveake: you sending up PIE today too?
[13:19] <daveake> tomorrow
[13:19] <costyn> ah
[13:20] <daveake> Just getting it working :p
[13:24] <costyn> ah ok so there's still NickB's FALCON going up
[13:24] <fsphil> is that today?
[13:25] <costyn> fsphil: it's on the calendar
[13:25] <fsphil> I seen some ssdv tests on the live page, I wonder if he's flying that today
[13:25] <costyn> fsphil: he mailed about it few days ago
[13:26] <costyn> it's kinda a cool thing... it's sponsored by the meteo institute, so they pay for balloons and helium and he's providing the payload
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[13:26] <daveake> Ah that Nick now I remember :-). He emailed me a few times re SSDV on the Pi
[13:26] <fsphil> nice arrangement
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[13:41] <chrisstubbs> daveake, are you running large images on one channel and small on the other?
[13:44] <daveake> yep
[13:44] <fsphil> the colour on the Pi cam is really quite good
[13:44] <daveake> I'll probably make them both a bit smaller for the flight
[13:44] <daveake> atm they're a bit slow
[13:45] <GMT> any ideas on a flightpath? ... southwest-ish with the prevailing wind?
[13:45] <daveake> For which flight? Mine is http://habhub.org/predict/#!/uuid=4ba06e8c7cdb0935aec23d01e6484784df31de33 at present
[13:46] <GMT> okay ... more west that southwest then!
[13:47] <chrisstubbs> Got any photos of your antenna daveake?
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[13:48] <daveake> You mean the rx one in the garden?
[13:48] <chrisstubbs> yeah
[13:49] <daveake> somewhere, not online or handy atm
[13:50] <chrisstubbs> ah no worries
[13:50] <chrisstubbs> looks big!
[13:50] <daveake> 3m colinear on top of a 10m mast
[13:50] <daveake> or 8m I forget
[13:50] <fsphil> PD3WB receiving Falcon .. have they launched?
[13:53] NickB1 (~NickB@188.188.66.241) joined #highaltitude.
[13:54] <NickB1> Falcon is away
[13:54] <NickB1> Buy dont have a receiver on site
[13:54] <fsphil> see some rather bright images coming in NickB1
[13:55] <PE2G> NickB1: which freq?
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[13:57] <NickB1> 434.650 and. 240
[13:58] <NickB1> .650 for ssdv
[13:59] <G4MYS> Are we due another flight this PM? if so the freq & time would be useful! Andy
[14:00] <fsphil> the current flight is not in the UK
[14:00] <G4MYS> many thanks
[14:01] <fsphil> though isn't SDEAN launching today?
[14:01] <fsphil> was suppose to be an hour ago
[14:01] <g6gzh> the box on the tracker is showing last weekend
[14:02] <fsphil> ah, duh
[14:02] <fsphil> I thought someone had updated it. didn't read it properly
[14:02] <g6gzh> 8-)
[14:02] <GMT> the only other one today is the one from Belgium
[14:03] <fsphil> that one is currently in the air
[14:03] <fsphil> though not tracking
[14:03] <fsphil> and only fragements of images
[14:03] <fsphil> -e
[14:03] <fsphil> the live images are here: http://ssdv.habhub.org/
[14:03] <daveake> blue now
[14:03] <fsphil> actually if this gets high enough you'll be able to receive this from the UK
[14:04] <fsphil> I hope this camera isn't going to over-expose all the way
[14:05] <PE2G> NickB1: what is the baud rate?
[14:05] <g6gzh> faint signals from pifalcon
[14:06] <Geoff-G8DHE> Yes mine just locked on as well!
[14:07] <g6gzh> I've not decoded anything yet
[14:07] <fsphil> they're still not on the map
[14:07] <Geoff-G8DHE> Is it just telemetry do we know on 43465 or is he doing SSDV ?
[14:07] <daveake> http://ssdv.habhub.org/
[14:07] <fsphil> there are two frequencies, one is ssdv
[14:07] <fsphil> - Raspberry Pi + Webcam: SSDV + (hopefully) interlaced telemetry strings
[14:07] <fsphil> (PIFALCON, 434.650MHz, 8N2, USB)
[14:07] <fsphil> - Backup telemetry board (FALCON, 434.240Mhz, 8N2, USB)
[14:08] <fsphil> doesn't mention baud rates
[14:08] <Geoff-G8DHE> Ah right that looks good already then
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[14:08] <daveake> this one looks better
[14:08] <fsphil> earth still too bright
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[14:08] <fsphil> ooh wait
[14:08] <fsphil> hint of cloud
[14:08] <fsphil> PE2G: nice one
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[14:09] <NickB_> hi
[14:09] <fsphil> wb NickB_
[14:10] <NickB_> I,m uploading falcon data but nothing is showing on the map?
[14:10] <daveake> image 12 looking good
[14:10] <daveake> [2013-05-25 14:10:21,894] DEBUG habitat.parser MainThread: Exception in UKHAS main parse: ValueError: Incorrect number of fields (got 8, expect 7)
[14:10] <fsphil> Exception in UKHAS main parse: ValueError: Incorrect number of fields (got 8, expect 7)
[14:10] <fsphil> ah
[14:10] <fsphil> echo
[14:10] <fsphil> can you paste a string here pls
[14:11] <NickB_> $$$$FALCON,199,14:10:51,+50.757160,+4.131060,10936,6,4.32,2.5*7944
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[14:11] <GMT> faint signals here in London
[14:12] <fsphil> that actually looks ok
[14:12] <PE2G> FALCON ssdv 300 bd, 8n2, 434.6510 MHz
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[14:16] <NickB_> falcon still not uploading
[14:16] <NickB_> gps on pifalcon is behaving strange :/
[14:17] <fsphil> NickB_: the flight doc isn't right, getting it changed now in #habhub
[14:17] <wdb> FALCON is decoding in dl-fldigi
[14:17] <fsphil> it's using an older FALCON payload doc
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[14:17] <NickB_> thx phil!
[14:17] <fsphil> that's it now
[14:17] <fsphil> thank Randomskk :)
[14:17] <fsphil> and cuddykid
[14:18] <fsphil> oooh dark sky
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[14:18] <fsphil> what model of camera is this NickB_?
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[14:20] <NickB_> ah yes all working
[14:20] <NickB_> thx guys!
[14:20] <PE2G> $$PIFALCON,29,14:20:32,50.751949,4.081850,14359,4*2962
[14:21] <NickB_> fsphil logitech c920
[14:21] <cuddykid> think I prefer the smaller images but more of them - my larger images just take far too long to be beamed down (~12mins per image)
[14:21] <daveake> ooh expensive :p
[14:21] <PD4KDZ_klaas> PE2G what is your carrier shift value ?
[14:21] <daveake> Yeah cuddykid I tend to agree
[14:21] <PE2G> 587 Hz
[14:22] <daveake> This time I'm doing 2 sizes but neither very large
[14:22] <PD4KDZ_klaas> oke thankz
[14:22] <daveake> About time you did another ssdv flight fsphil :)
[14:22] <Geoff-G8DHE> whats the data baud rate on the lower freq.
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[14:23] <NickB_> 50
[14:24] <daveake> Nickb_ Are you doing any selection of which image to send?
[14:24] <Geoff-G8DHE> ASh its 8 bit 2 stop not as per the document
[14:24] <NickB_> no
[14:24] <NickB_> thats something for the next flight :)
[14:24] <daveake> Might be an idea - reject the boring ones
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[14:25] <fsphil> daveake: yep I'm well behind the times :)
[14:25] <NickB_> you filtered on size?
[14:25] <daveake> yep
[14:25] <daveake> It's a simple algorithm :p
[14:25] <fsphil> take an ideal image and multiply it against the current image .. take the one with the highest score :)
[14:25] <cuddykid> ideally with an uplink - some sort of system where it sends down a few thumbnails then you can pick the best to download full size :)
[14:25] <fsphil> or do the akerman function
[14:26] <cuddykid> yes, I'm running the akerman algo
[14:26] <fsphil> ah, image data being received in the uk
[14:26] <cuddykid> slightly augmented to have preference over most recent images
[14:26] <daveake> I do all the clever ones. Image sizes. Speed limits. ...
[14:26] <cuddykid> ha
[14:27] <cuddykid> I'm like mr samsung ;)
[14:27] <NickB_> the lassen seems to have a problem
[14:27] <NickB_> launch was a bit bumpy
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[14:27] <fsphil> Geoff-G8DHE: how's the signal, you getting all the image or just fragments?
[14:28] <PE7ER> yeay i helped to put a bit blue in the picture!
[14:29] <Geoff-G8DHE> Fragments at present but the decode rate is going up
[14:29] <fsphil> I'm guessing these payloads are on the same balloon -- the tracks are a bit mental
[14:29] <Geoff-G8DHE> see http://360.g8dhe.net/hab_flights/FALCON-20130525/index.php?ind=2
[14:29] f5apq (5a010d58@gateway/web/freenode/ip.90.1.13.88) joined #highaltitude.
[14:30] <NickB_> yes in the same payload
[14:30] <NickB_> but the lassen of pifalcon is have some trouble
[14:30] <NickB_> very weird
[14:32] <g4sgx-iain> is it 434.650?
[14:32] <Geoff-G8DHE> yes for ssdv
[14:32] <fsphil> yes
[14:33] <fsphil> I've put the details on spacenear, if you refresh
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[14:34] <Geoff-G8DHE> getting pretty solid copy now
[14:35] <steve_____> Does anyone have a frequency for pifalcon
[14:35] <Geoff-G8DHE> 434.650 dead on
[14:35] <Geoff-G8DHE> make sure the Trackbandwidth is vert wide in dl-fldigi
[14:36] <Geoff-G8DHE> they need to be almost if not touching
[14:36] <G4MYS> whats the carrier shift with FALCON?
[14:36] <Geoff-G8DHE> 600Hz baud rate 300
[14:37] <PE2G> I have 587 Hz
[14:38] <GMT> do I need 'Rv' clicked or not?
[14:38] <fsphil> normally no
[14:38] <fsphil> if your radio is in USB mode
[14:38] ibanezmatt13 (569b6990@gateway/web/freenode/ip.86.155.105.144) joined #highaltitude.
[14:38] <fsphil> remember that SSDV packets are binary, they will appear as gibberish in the text window
[14:38] <G4MYS> radio is in usb
[14:38] <GMT> okay, getting lots of gibberish decodes, but that's SSDV ... is there normal rtty interlaced?
[14:39] <ibanezmatt13> weather's marvellous up here :) Afternno
[14:39] <fsphil> I believe so GMT
[14:39] <Geoff-G8DHE> there is telelmetry on 434.650 as well
[14:39] <GW8RAK> afternoon ibanezmatt13
[14:39] <G4MYS> on 434.650 but cant decode it!
[14:40] <Geoff-G8DHE> Turn on the SSDV window G4MYS
[14:41] <fsphil> G4MYS: have you selected PIFALCON from the payload list, and pressed Auto-configure?
[14:41] <Geoff-G8DHE> getting about 50% of frames at the moment seems to have faded a little
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[14:41] <fsphil> there are two payload in this flight so you need to pick the right one
[14:41] <fsphil> PIFALCON is on 434.650
[14:41] <fsphil> doing 300 baud
[14:42] <daveake> and I thought 10 metres was plenty enough cord between payloads :p
[14:42] <fsphil> lol
[14:42] <fsphil> it just wasn't working out between them
[14:42] <fsphil> they needed some space
[14:42] <fsphil> or near-space anyway
[14:42] Action: fsphil corrects himself
[14:43] <fsphil> it's not space, it's just really high up
[14:43] <fsphil> also really bright
[14:43] <daveake> they have an up-down relationship
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[14:43] <fsphil> g6gzh: see you're decoding SSDV now
[14:44] <g6gzh> only the one packet I think
[14:44] <ibanezmatt13> What is involved in transmitting low quality pictures to Earth? I've heard something about FEC?
[14:44] <fsphil> I suspect I'm too far away for this flight
[14:44] <fsphil> ibanezmatt13: FEC, and the ability to handle gaps in the data
[14:45] <g6gzh> it's very weak here and I have some impulse noise on frequency too
[14:45] <Geoff-G8DHE> FEC=Forward Error Correction
[14:45] <ibanezmatt13> is there some example code for it?
[14:46] <Geoff-G8DHE> its extra data to allow errors to be corrected in a block of data
[14:46] <fsphil> I like to think of the phonetic alphabet as an FEC for the brain
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[14:47] <Geoff-G8DHE> http://en.wikipedia.org/wiki/Forward_error_correction
[14:47] <fsphil> good timing
[14:47] <Geoff-G8DHE> lol
[14:47] <fsphil> ah, missing packet
[14:47] <GMT> so if these pics are FEC, what mode do I set in DL-FLDIGI?
[14:47] <OZ1SKY_Brian> what tx is the strongest, 240 or 650 ?
[14:47] <ibanezmatt13> I'll have a read, thanks :)
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[14:47] <fsphil> GMT: they're being transmitted over RTTY
[14:47] <Geoff-G8DHE> use the Auto config button after selecting Pifalcon as the payload
[14:47] <fsphil> just select PIFALCON payload and hit the AutoConfigure button
[14:47] <fsphil> it should do the rest
[14:48] <fsphil> well, except the frequency
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[14:48] <GMT> okay, I'm set on rtty, can see sig on waterfall, decoding is gibberish, but that's all
[14:48] <fsphil> the image data will appear in the text window as gibberish
[14:48] <NickB_> some more listeners on Falcon would be great, would increase the chance of retreiving :)
[14:48] <fsphil> to see it decoded (if it has gotten any full packets), press View -> SSDV RX
[14:49] <fsphil> an of course the live page at http://ssdv.habhub.org/
[14:49] <Geoff-G8DHE> also turn on the SSDV view wndow to see what you have Rx
[14:50] <fsphil> OZ1SKY_Brian: falcon is 50 baud so probably a little easier
[14:50] <fsphil> (240)
[14:50] <OZ1SKY_Brian> fsphil i mean the best signal, strongest signal
[14:50] <fsphil> ah. that I can't say :) much to far away for me
[14:51] <fsphil> too*
[14:51] <steve_____> I can't see it - I normally tune in to the USB rather than the stated frequency - I am tuned to exactly 434.650 is that correct?
[14:51] <g6gzh> 650 seems stronger here
[14:51] <fsphil> steve_____: it's never extactly where you expect it
[14:51] <fsphil> tune around a bit
[14:51] <PD4KDZ_klaas> 434.650.42
[14:52] <GW8RAK> Is .240 the SSDV frequency?
[14:52] <fsphil> hehe, Lunar_Lander would be able to receive this
[14:52] <fsphil> GW8RAK: .650
[14:52] <Geoff-G8DHE> look in the waterfall very stong signals for me
[14:52] <fsphil> ish
[14:52] <GW8RAK> Thanks Phil, I've got a stron woodpecker on 240
[14:52] <fsphil> oooh it should be just on your horizon now GW8RAK
[14:53] <Maxell> SSDV seems very noisy
[14:53] <Maxell> hows that?
[14:53] <GW8RAK> Unfortunately I've got QRM this afternoon. Turned everything off in the house.
[14:53] <fsphil> I had to switch off my PV inverter earlier
[14:53] <fsphil> it's horrible on HF
[14:54] <fsphil> clouds are so difficult to compress
[14:54] <Geoff-G8DHE> steve_____ http://360.g8dhe.net/HAB_Flights/capture3.JPG
[14:54] <GW8RAK> What sort of signal is on .240?
[14:54] <GW8RAK> I've got something similar to a fax
[14:55] <fsphil> should be standard 50 baud rtty
[14:55] <g6gzh> 50 baud
[14:55] <Geoff-G8DHE> thats normal telemetry 50baud 425hz shift
[14:55] <GW8RAK> That's what I thought.
[14:55] <steve_____> thanks
[14:56] <Maxell> s/n ~22 dB :)
[14:56] <fsphil> nice dark sky
[14:57] <GW8RAK> Big rig is giving me SSDV, but still a lot of noise.
[14:57] <fsphil> is it decoding it GW8RAK?
[14:57] <fsphil> you don't seem to be uploading
[14:58] <GW8RAK> Just rigging an audio lead for it
[14:58] <fsphil> ah
[14:58] <craag> That's a nice pic coming in now.
[14:58] <Geoff-G8DHE> lots of fading for me
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[15:02] <Geoff-G8DHE> popped
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[15:03] <GW8RAK> No chance of any data. Just too much noise from somewhere. Nothing on in the house except the PC and too far from the neighbours for their eqpt to interfere
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[15:04] <PD4KDZ_klaas> ... so there is the new background for my desktop.... nice pica B
[15:04] <fsphil> 25 is excellent
[15:05] <GW8RAK> Even less chance now that it has burst
[15:05] <cuddykid> very nice photo
[15:06] <GW8RAK> Great pictures.
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[15:07] <OZ1SKY_Brian> god i hate those <35000m alt bursts with a passion, just when i get a chance, it flips the finger :-)
[15:08] <GW8RAK> :)
[15:08] <fsphil> still decoding well despite falling
[15:08] <daveake> last 2 images very nice
[15:09] <Geoff-G8DHE> this current one looks good so far
[15:09] <Geoff-G8DHE> nicely exposed
[15:09] <fsphil> we may not get all of it
[15:09] <Geoff-G8DHE> thats the worry!
[15:11] <OZ1SKY_Brian> taking my anger somewhere else, have to go. enjoy... bye
[15:11] <Geoff-G8DHE> 73
[15:11] <fsphil> cya OZ1SKY_Brian. will try sending you one soon
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[15:13] <NickB_> does the predictor seem right?
[15:13] <NickB_> are driving towards Ronse now
[15:13] <steve_____> well should have brought a better arial :)
[15:14] <Maxell> PE2G: the signal is so 'dirty' here. How are you able to get SSDV data from it? :P
[15:15] <PE2G> The signal is clean here :)
[15:15] <Geoff-G8DHE> getting 50% so far 27Rx 23lost on current image
[15:15] <PE2G> Some fading
[15:16] <PE2G> http://s15.postimg.org/wf8adfqvf/Screen883.jpg
[15:17] <Geoff-G8DHE> PE2G http://360.g8dhe.net/HAB_Flights/capture4.JPG
[15:19] <Geoff-G8DHE> Yes 25/26 great shots
[15:19] <daveake> Nice job; will track again :)
[15:20] <PE2G> That parachute is working, otherwise I would have lost it long ago.
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[15:25] <Geoff-G8DHE> yes SSDV fading out for me now telem still going
[15:28] <Geoff-G8DHE> NickB_ Nice flight that thanks
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[15:34] <Geoff-G8DHE> Object Movie for MONDO this morning http://360.g8dhe.net/hab_flights/MONDO-20130525/MONDO-1.html
[15:34] <PE7ER> good job pe2g!
[15:36] <fsphil> F5APQ doing well
[15:36] <fsphil> images coming down are better than the ones going up :)
[15:36] <PE2G> PE7WER: Thanks, I started decoding a bit late, wasn't aware that it was already up
[15:37] <PE2G> PE7ER that is
[15:37] <fsphil> landing site has a forest nearby
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[15:39] <Maxell> last usable location Failed to mount Windows share
[15:39] <Maxell> $FALCON,50,15:37:14,50.746769,+3.613900,23<6,8,4>19,3.5*2286
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[15:39] <Maxell> rofl
[15:41] <fsphil> that's it for the images
[15:43] <fsphil> that's a really low decent rate
[15:44] <fsphil> please miss the forest
[15:45] <fsphil> and down
[15:46] <fsphil> ahh, check out the altitude graph -- it ascended at one point
[15:46] <fsphil> must have hit a thermal
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[15:47] <PE7ER> it was coming down very slow on the 'beausite'
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[15:48] <fsphil> looks to be in a small patch of trees
[15:48] <fsphil> hopefully not very tall
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[15:49] <x-f> impressive pictures
[15:50] <fsphil> the first few had me worried
[15:51] <SpeedEvil> All tree are the same height in the dark.
[15:51] <SpeedEvil> trees
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[16:29] <fsphil> hmmm no updates
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[16:33] <chrisstubbs> Any word from mondo?
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[16:38] <g4fui> Gardening duties today, so not up to speed ! Is PIE a launch for tomorrow?
[16:39] <chrisstubbs> g4fui, yep!
[16:39] <g4fui> Thanks Chris, I've a mate down Swindon way, so I'll tip him off, what's the planned launch time?
[16:40] <chrisstubbs> around midday i think
[16:40] <g4fui> Ta!
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[17:26] <arko> Woo!
[17:26] <arko> Launching hab in 2 hours
[17:26] <Geoff-G8DHE> Falcon & PIFalcon flight path today http://360.g8dhe.net/hab_flights/FALCON-20130525/FALCON.html
[17:26] <mfa298> good luck arko
[17:27] <arko> Thanks. I need someone to get N6ARA-11
[17:27] <arko> On spacenear.us
[17:28] <arko> Aprs stufff
[17:28] <arko> stufff
[17:29] <chrisstubbs> Good luck arko!
[17:32] <arko> Thanks!
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[17:47] <eroomde> yoyo
[17:48] <eroomde> got me some sunburn
[17:48] <eroomde> c'mon england
[17:48] <chrisstubbs> eroomde, :O
[17:48] <Laurenceb_> raspberry pi did some work
[17:48] <Laurenceb_> thats insane
[17:48] <chrisstubbs> yeah its been reasonable today
[17:48] <eroomde> watched the summer 8's on the river (oxford boat races)
[17:49] <Laurenceb_> coxes swearing at everyone?
[17:49] <eroomde> wasn;t really there for the racing
[17:49] <eroomde> more the oliver wyman tent giving out free pimms
[17:50] <Laurenceb_> "you pointless scum my mum could row faster than that"
[17:50] <eroomde> and being interviewed by one of their grad recruitment people in exchange
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[17:51] <Laurenceb_> oliver wyman?!
[17:51] <Laurenceb_> sounds... exciting
[17:51] <Laurenceb_> /sarc
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[17:51] <eroomde> they were sponsoring something
[17:51] <anerDev> hi guys
[17:51] <Laurenceb_> hehe
[17:51] <Laurenceb_> irony
[17:52] <chrisstubbs> arko, dont suppose we can watch your talk online can we?
[17:52] <Laurenceb_> "as you can see the summer 8's demonstrate perfect team management"
[17:52] <Laurenceb_> "senior managers need to swear at their junior staff and reinforce their superiority"
[17:53] <Laurenceb_> "anyone who isn't a team player will be kicked into a cold river"
[17:55] <eroomde> you're takingnthe piss but it was exactly like that
[17:55] <Laurenceb_> http://www.youtube.com/watch?feature=player_detailpage&v=j1DJpDrT2Xk#t=26s
[17:56] <Laurenceb_> ^more like that?
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[17:56] <eroomde> after about my 4th glass a chap came over from behind the stall and asked 'so you have 8 rowers in a boat. all of them are 80kg except one who is 65kg. you can't tell by looking what weight they are. you just have a pair of balancing scales. in how many weighings can you find the lightest rower?"
[17:56] <griffonbot> @ashleymorgan710: It is official OFFICIAL I am a college graduate! #Childdevelopment #cusf [http://twitter.com/ashleymorgan710/status/338352980296335361]
[17:57] <eroomde> to which i replied that i just came from some free pimms
[17:57] <eroomde> "sure but have a think about it"
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[17:57] <eroomde> sorry 9
[17:57] <eroomde> 8 plus cox
[17:57] <eroomde> you had to find the cox (sorry i drank a lot since)
[17:57] <eroomde> i had to answer that in order to get the next glass
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[17:58] <fsphil> 1 .. weigh the entire boat, and ask each person to leave one at a time...
[17:58] <eroomde> i didn;t think it was particularly in the spirit of sponsorship but then i have not been an undergrad for the last 2 years so perhaps i was abusing it a bit
[17:59] <eroomde> they are balancing scales fsphil
[17:59] <fsphil> ah right
[17:59] <fsphil> well I'm not getting any pimms
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[18:00] <fsphil> I suppose 3 .. divide them into two groups
[18:00] <fsphil> exchange two
[18:00] <fsphil> and and same again
[18:01] <fsphil> it's a silly question
[18:02] <SpeedEvil> Do the rowers have to be alive at the end of the weighing?
[18:02] <eroomde> it's just two
[18:02] <eroomde> but i'm afriad i over answered his question from the look on his face
[18:02] <fsphil> lol
[18:03] <eroomde> i worked out what the entropy of each ensamble of possible outcomes would be (from a shannon information point of view) to state it was best to weight 3 against 3 each time (rather than 2 v 2 or 4 v 4)
[18:03] <SpeedEvil> ...
[18:03] <eroomde> and then showed you can do it in just two moves with 3 v 3
[18:03] <fsphil> you earned that pimms
[18:03] <SpeedEvil> haha
[18:03] <eroomde> i really did
[18:03] <eroomde> i earned his card too
[18:03] <SpeedEvil> I'd just have done the binary chop thing
[18:03] <SpeedEvil> As I suspect most would have
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[18:04] <eroomde> harder with 9 balls
[18:04] <SpeedEvil> Oh - neat. Of course. You're exploiting the fact that you get more information out than the number of weighings.
[18:04] <eroomde> yes
[18:05] <SpeedEvil> It's nice when maths turns out to be beautiful like that.
[18:05] <eroomde> isn;t it
[18:05] <eroomde> information theory ftw
[18:05] <Laurenceb__> so you have to sort 9 rowers by weight?
[18:05] <eroomde> no
[18:05] <eroomde> just find the lightest one
[18:05] <Laurenceb__> ah
[18:05] <eroomde> 8 are equal, one is lighter
[18:06] <Laurenceb__> oh i see
[18:06] Action: Laurenceb__ has piss poor internet
[18:06] <eroomde> it's one of those silly brainteasers that put you off interviewing
[18:06] <gonzo_p> v
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[18:07] <Laurenceb__> so divide into three groups of three
[18:07] <gonzo_p> 3
[18:07] <mfa298> although at those weights you could probably acheive it without weighing any of them. Just pick out the smaller person
[18:07] <Laurenceb__> then you need to weight 2 groups
[18:07] <eroomde> mfa298: he said you can;t tell by looking
[18:07] <Laurenceb__> then you can find the lightest using 3 scale "operations"?
[18:08] <gonzo_p> split into 2 groups of 4, weigh, then you have divide that lighter group nto 2's, then weigh the 2 individuals
[18:08] <eroomde> gonzo_p: my reasoning is that you get the most information by doing 3 v 3 balls at a time
[18:08] <fsphil> gonzo_p: there are 9 people
[18:09] <Laurenceb__> yeah i see the 3v3 reasoning
[18:09] <SpeedEvil> eroomde: 6 v 6 - for 3 rowers each
[18:09] <gonzo_p> if the 2x4 groups balance, the odd man is light
[18:10] <Laurenceb__> do you have balance scales or absolute weight ones?
[18:10] <SpeedEvil> Balance
[18:10] <Laurenceb__> ah
[18:11] <gonzo_p> i'd asumed that if 8 are equal, there isno other useful info to get, other than id the light man
[18:11] <eroomde> info as in, sum(p(x)*log(p(x)))
[18:12] <eroomde> the sum of the entropies
[18:12] <SpeedEvil> You have 9 possible output states with 2 weighings - one each of heavy/same/light
[18:12] <gonzo_p> my maths evapourated 20yrsago
[18:12] <SpeedEvil> Coincidentally, you have 9 possible outcomes.
[18:12] <eroomde> it's basically a low-ball question for someone who has done any info theory. it's a very analgous problem to trying to find 'error' bits on a decoded message
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[18:12] <eroomde> and correct them
[18:12] <SpeedEvil> :)
[18:13] <SpeedEvil> But will blow most peoples minds as they will do either dumb solutions or if they think they are clever - binary chop or similar
[18:13] <eroomde> but anyway you can do it in 2 lots of 3v3 and reason about it entirely without maths
[18:13] <eroomde> eg
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[18:13] <Willdude123> Hello
[18:13] <SpeedEvil> Set and information theory is maths too.
[18:14] <eroomde> 1) 3v3. they are balanced. so the light one is definitely in the 3 on the side you didn;t weigh.
[18:14] <eroomde> pick 2 at random from the 3 on the side, weight them (i.e. 1 v 1). if balanced it's the one remaining one. if not balanced it's the lighter one
[18:14] NickB1 (~NickB@188.189.80.20) joined #highaltitude.
[18:14] <eroomde> the other possibility:
[18:14] <eroomde> 2) 3v3. they are not balanced. the light one is in the lighter 3
[18:15] <SpeedEvil> At the end of this do you also weigh them against a duck, and burn the lightest?
[18:15] <eroomde> pick 2 at random from the lighter 3. weigh them 1v1. if they are balanced, it's the 1 remaining one. ifthey are not balanced, it's the lighter one
[18:15] <fsphil> that really is quite lovely
[18:15] <NickB1> Found the payload.. Only 20m up in a tree :)
[18:15] <SpeedEvil> It is.
[18:15] <SpeedEvil> NickB1: Woo!
[18:15] <gonzo_p> only if it's made ofwood
[18:15] <SpeedEvil> Did you get it?
[18:15] <fsphil> NickB1: found .... and recovered?
[18:15] <costyn> NickB1: nice!
[18:16] <fsphil> the trees didn't look all that big on the map
[18:16] <SpeedEvil> :)
[18:17] <NickB1> No still there, a tree surgeon is getting it down on monday
[18:17] <SpeedEvil> Damn I hate youtube. I want to see only the new videos in my subscriptions. I do not ever want o see comments or old ones.
[18:17] <fsphil> is it still sending images NickB1?
[18:17] <NickB1> Yes :D
[18:17] <eroomde> SpeedEvil: yes that's annoying
[18:18] <fsphil> SpeedEvil: I've bookmarked http://www.youtube.com/feed/subscriptions and selected 'Uploads only'
[18:18] <NickB1> Got a picture tree picture :)
[18:18] <fsphil> it's as close as I can get to the old youtube page before they mucked it up
[18:18] <SpeedEvil> Hmm
[18:18] <SpeedEvil> https://www.youtube.com/watch?v=5_8Z9OOGG34 There are some neat people on ebay
[18:19] <SpeedEvil> He's good as he's good, but not quite awesome to make me hopeless to emulate.
[18:19] Babs (d4b780f3@gateway/web/freenode/ip.212.183.128.243) joined #highaltitude.
[18:19] <SpeedEvil> I mean - guys who do backscatter x-ray DIY set a high bar.
[18:19] <NickB1> I'm curious what the problem was with the lassen
[18:20] <Babs> Evening all - last of my queries. On the balloon predictor.....Neck lift = weight of my dummy weight payload that the balloon should just lift right?
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[18:20] <Babs> (this is more paranoia at this stage)
[18:21] <fsphil> Babs: yep. it should float with that weight on the neck
[18:21] <Babs> thanks fsphil
[18:21] <SpeedEvil> In still air
[18:21] <SpeedEvil> Restrain it in a wind, and you may get a different result
[18:21] <NickB1> Heading home now
[18:21] <NickB1> Bye all
[18:21] <NickB1> Thx for decoding
[18:22] <Willdude123> What does 3v3 mean?
[18:22] <fsphil> cya NickB1, was fun !
[18:22] <Babs> can anyone on here activate the live predictor tonight, or does it have to be tomorrow?
[18:22] NickB1 (~NickB@188.189.80.20) left irc: Quit: Bye
[18:22] <fsphil> Babs: I'm going to schedule a task, but I'll be up anyway
[18:22] quintessential (~essense@adsl-76-217-59-163.dsl.chcgil.sbcglobal.net) joined #highaltitude.
[18:22] <Babs> Thanks fsphil, what do you need from me?
[18:22] <Babs> in terms of data
[18:23] <fsphil> expected burst altitude, ascent and descent rate
[18:23] Nick change: quintessential -> quint
[18:24] <mfa298> Willdude123: probably depends on context, But for electronics 3v3 would mean 3.3V
[18:24] <Babs> fsphil 33,500, 4.48m/s up (I know, I know), 5.99 down (I know, I know)
[18:25] <gonzo_p> that 2 weighings is neat eroomde. even without maths
[18:26] <fsphil> Babs: thanks, noted
[18:27] <Babs> thanks fsphil, i appreciate it. Final checks all done this side and weather etc. all looks good.
[18:28] <G4MYS> 3V3 in electroinics does mean 3.3Volts, problem is in print the little . does not always show so the reader may think 33Volts not 3.3Volts thus following the K markings on resistors thus 10K0 voltages are these days shown the same way, Andy
[18:31] Lunar_Lander (~gd-compto@p5488A601.dip0.t-ipconnect.de) joined #highaltitude.
[18:31] <Lunar_Lander> hello
[18:33] <fsphil> there was an ssdv flight not far from you today Lunar_Lander :)
[18:36] <fsphil> just the three launches tomorrow? (BABSHAB, XABEN50 and PIE6)
[18:37] <x-f> "just" three.. :)
[18:38] <fsphil> hah
[18:38] <fsphil> that should have been "just these three"
[18:39] cn8dn (6dbe23ba@gateway/web/freenode/ip.109.190.35.186) joined #highaltitude.
[18:39] <cn8dn> hello
[18:40] <fsphil> hiya cn8dn
[18:40] <craag> "just these three" - Please put that on spacenearus banner :P
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[18:41] <cn8dn> I try to make a modulated test on a ball
[18:42] <fsphil> craag: tempting :) just updating that now
[18:43] <Lunar_Lander> hi fsphil
[18:43] <Lunar_Lander> oh ok
[18:43] <Lunar_Lander> but was it 70 cm?
[18:43] <griffonbot> Received email: mclane "[UKHAS] Re: PYSY-4 Launch Announcement 13.4.2013"
[18:43] <fsphil> oh wait steve isn't launching
[18:43] <craag> :(
[18:43] <fsphil> Lunar_Lander: yep
[18:44] <cn8dn> material
[18:44] <fsphil> all the ssdv flights have been so far
[18:44] <Lunar_Lander> oh ok
[18:45] <mfa298> fsphil: from Steve's emails I'm not sure we can guess when he'll fly. Looks like he started with Sunday, then said saturday then said he's postponing
[18:46] ibanezmatt13 (569b6990@gateway/web/freenode/ip.86.155.105.144) joined #highaltitude.
[18:47] <ibanezmatt13> Would it be complicated to send low res images on the NTX2 and dec
[18:47] <ibanezmatt13> decoding* it
[18:47] <craag> ibanezmatt13: It was done today! http://ssdv.habhub.org/
[18:48] <ibanezmatt13> wow! They're not bad are they :)
[18:48] <Lunar_Lander> has NickB1 been on today?
[18:48] mclane_ (~uli@p5B02ED8C.dip0.t-ipconnect.de) joined #highaltitude.
[18:48] <craag> No bad at all. But it's a good idea to get yourself a reliable tracker first.
[18:49] <fsphil> oh man, Mondo is in a tree
[18:49] <ibanezmatt13> Yeah, I'll make sure my tracker works first
[18:49] <fsphil> it's still updating
[18:49] <fsphil> sorry, trees
[18:49] <fsphil> that looks horrible
[18:50] Babs (6d9483d5@gateway/web/freenode/ip.109.148.131.213) joined #highaltitude.
[18:50] <fsphil> mfa298: good point. I'll give him a poke if he appears
[18:51] <ibanezmatt13> I know how to use fswebcam. I wrote a Python script which takes a picture from a webcam every x seconds and saves them to an SD card. The hard bit is splitting the picture into packets for transmission
[18:51] <fsphil> ibanezmatt13: some bloke wrote this which does that, https://github.com/fsphil/ssdv
[18:52] <ibanezmatt13> thanks :)
[18:52] <Lunar_Lander> fsphil, got a short question on your SSTV
[18:52] <Lunar_Lander> you said you had that CMOS camera?
[18:52] <fsphil> I do
[18:52] <fsphil> SSDV*
[18:52] <Lunar_Lander> yea
[18:52] <fsphil> yes the name is confusing and I wish I'd picked a better one :)
[18:53] <jonsowman> always happens
[18:53] <Lunar_Lander> how did you like got it to work? the guys at sparkfun like complain in the comments about how there is no documentation and so on
[18:53] <Lunar_Lander> do you have to reverse engineer it or so?
[18:53] <fsphil> Lunar_Lander: oh I know the one you mean, that's not the camera I've been using
[18:54] <fsphil> I had the C328, which sparkfun don't sell anymore
[18:54] <fsphil> it was fussy about timings, but otherwise worked well
[18:54] <Lunar_Lander> ah
[18:54] <Laurenceb__> you could use stm32f4
[18:54] <fsphil> I find the linksprite to be a but fussier
[18:54] <Lunar_Lander> yea the other one is from Toshiba I think
[18:54] <Laurenceb__> works with loads of cmos sensors
[18:54] <Lunar_Lander> where everyone complains
[18:55] <Lunar_Lander> fsphil, yea, see why I always say it pulls my hair?
[18:55] <Laurenceb__> RS sell some
[18:55] <Lunar_Lander> :P
[18:55] <fsphil> I've been meaning to try using a cmos without the jpeg bits
[18:55] <fsphil> just capture the raw data
[18:55] <Lunar_Lander> laurence, the discovery board CPU?
[18:55] <Laurenceb__> yes
[18:55] <Lunar_Lander> ah ok
[18:56] <Laurenceb__> theres good libraries and everything
[18:56] <Laurenceb__> bbl
[18:56] <fsphil> I doubt an avr would have the speed or memory for directly reading from a cmos
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[18:57] <Lunar_Lander> yea
[18:57] <Lunar_Lander> what I always wanted to do on my AVR is like
[18:58] <Lunar_Lander> take a photo, then move it to the SD
[18:58] <Lunar_Lander> and that seems to be possible
[18:58] <fsphil> with the jpeg uart cameras yea
[18:58] <ibanezmatt13> fsphil: Your SSDV code has just blown my mind :) https://github.com/fsphil/ssdv
[18:58] <fsphil> ibanezmatt13: yea sorry it has that effect. it's quite ... cryptic if you try to figure it out
[18:58] <fsphil> I'm not even sure how it works :)
[18:59] <ibanezmatt13> haha, yeah, there's no way I'm gonna understand that. I don't even know C very well! :)
[18:59] <ibanezmatt13> Are there any examples of SSDV in python?
[19:00] <fsphil> none that I know about. I've started doing an encoder in python but only got a few small pieces done so far
[19:00] <chrisstubbs> You can run the ssdv encryption from python
[19:00] <chrisstubbs> then read back the file it generates
[19:01] <ibanezmatt13> Is there a library for SSDV I can get for python
[19:01] <fsphil> nope :)
[19:01] <fsphil> that github repo will compile to a command line tool
[19:01] <fsphil> you can call that from python like chrisstubbs mentioned
[19:01] <ibanezmatt13> That would be great!
[19:02] <mclane_> I've got ssdv running on an ARM cortex m0
[19:02] <Lunar_Lander> hello mclane_
[19:02] <mclane_> Hi Lunar
[19:02] <ibanezmatt13> So in my program, if I use fswebcam to take the picture, I'll save it to a certain location, and then how will I pass my variables to the encryption program?
[19:03] <fsphil> same way you call fswebcam I suppose
[19:03] <mclane_> save it to an sdcard and re-read it into ssdv
[19:03] <fsphil> the command just takes the input file name, output, callsign and image ID
[19:03] <ibanezmatt13> I'll have a look into that
[19:04] <mclane_> thats the way I do it
[19:04] <Lunar_Lander> mclane_ is a star
[19:04] <Lunar_Lander> he made that damn linksprite camera work
[19:04] <Lunar_Lander> :)
[19:04] <fsphil> I sorta got it working. but still not perfectly
[19:04] <ibanezmatt13> fsphil: the command?
[19:05] <fsphil> ibanezmatt13: the ssdv program
[19:05] <ibanezmatt13> How would I call that program in my Python program?
[19:05] <fsphil> not sure, not done that in python. but I imagine it's very well documented on google
[19:06] <fsphil> how are you calling fswebcam from python?
[19:06] <mfa298> search google for how to run an external program.
[19:06] <ibanezmatt13> fsphil: https://gist.github.com/ibanezmatt13/5318252
[19:07] <ibanezmatt13> just using bash
[19:07] <fsphil> that's 90% of what you need
[19:07] <ibanezmatt13> really?
[19:07] <ibanezmatt13> So I can use SSDV in the shell
[19:08] <fsphil> yes
[19:08] <fsphil> you'll need some variables, such as the image ID which needs to change for each image
[19:08] <Babs> My fiance has just had a Mrs Gene Krantz moment. http://www.flickr.com/photos/91049302@N00/8829808416/
[19:08] <Babs> Respect to her.
[19:08] <fsphil> sweet
[19:09] <ibanezmatt13> So, will the SSDV split the data
[19:09] <fsphil> I totally need t-shirts
[19:09] <ibanezmatt13> into packets
[19:09] <fsphil> yea, the program will produce a file which contains the 256 byte packets
[19:09] <ibanezmatt13> Where will the packets go, I'll need to prepare them for sending over hardware serial to the NTX2
[19:10] <fsphil> read the file, split it into 256 byte parts if you want to send them one at a time
[19:10] <fsphil> or just send the lot in one go
[19:10] <fsphil> as long as the serial port is setup right (no changing newlines) it should just work
[19:10] <ibanezmatt13> So if I transmit at 50 baud?
[19:10] <ibanezmatt13> 300 sorry
[19:11] <ibanezmatt13> should be ok
[19:11] <fsphil> yep. well any baud that dl-fldigi can handle
[19:11] <fsphil> but the faster you go the tricker it gets
[19:11] <ibanezmatt13> Ok. So, I'll now Google for how to use SSDV as bash in the shell
[19:12] <fsphil> you may not find too much
[19:12] <SpeedEvil> over about 800 or so will likely have reduced snr
[19:12] <fsphil> best bet is to grab the ssdv source and compile it, have a play with the program
[19:12] <SpeedEvil> I mean over and above what is lost due to data rate
[19:12] <fsphil> the command line program can encode and decode
[19:12] <Lunar_Lander> Babs, cool!
[19:13] <Lunar_Lander> btw sorry for that, but in germany "Babs" is like short for Barbara
[19:13] <Lunar_Lander> so I always think you are a woman
[19:13] <SpeedEvil> UK too
[19:13] <Babs> Respect to her for finding the Tron/Short Circuit/War Games font
[19:13] <fsphil> what people get up to at the weekend is their own business :)
[19:13] <Lunar_Lander> yeah
[19:13] <mfa298> half the documentation you need is in main.c
[19:13] <fsphil> I do need to document it better
[19:14] <mfa298> pfft, i've seen much worse code.
[19:14] <craag> mclane_: Which M0 out of interest?
[19:15] <mfa298> at least you have a usage function that tells you want the options are.
[19:15] <craag> I've been planning (for a while) to try to get it working on the freescale m0+
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[19:17] <ibanezmatt13> fsphil: That main.c on your Github page, if I compile that into a Linux executable, would it work if I just in the shell wrote 'whateverthenameoftheprogramis(image.jpg) or something like that
[19:17] <fsphil> you'll need all those files, not just main.c
[19:18] <fsphil> you just have to run make to build it all
[19:18] <ibanezmatt13> makefile?
[19:19] <fsphil> make is the prorgam that reads the Makefile
[19:19] <mfa298> ibanezmatt13: use git to grab all the files (or download the zip/tar file) and then run "make" in the folder with all the source files
[19:20] <fsphil> prorgam. nice
[19:23] <fsphil> arko's pico is on the move
[19:23] <fsphil> by quite a distance :)
[19:24] <fsphil> I'd need to clean that map a bit
[19:24] <ibanezmatt13> So on my Pi, if I run "apt-get install git", to run git do I just do "git://https://github.com/fsphil/ssdv" and then that'll save it all to a directory. Then do I change directory to the new directory and simply run the word "make" in the shell? Is that it?
[19:25] <mfa298> I'm guessing he's just turned it on, presumably at the launch location (looks like there have been a couple of updates at that point)
[19:25] <jonsowman> $ git clone https://github.com/fsphil/ssdv
[19:26] <ibanezmatt13> thanks. And then do I change directory and run "make"
[19:26] <mfa298> yep
[19:27] <Babs> Lunar_Lander - Babs is short for Barbara everywhere
[19:27] <Babs> I didn't have any choice in my nickname :-(
[19:27] <mfa298> you might need to install make and gcc - I think you can do "apt-get install build-essential" to get them and other useful stuff
[19:27] <Babs> My fiance's Dad thought she had erm... "switched" when he found out her new partner's name was Babs
[19:28] <ibanezmatt13> mfa298: that's handy :)
[19:28] <fsphil> yea ssdv only really needs gcc and make
[19:28] <fsphil> well, and glibc and a kernel...
[19:29] <ibanezmatt13> What will I put into the shell to run the program when I've done all that? How do I get it to process my image?
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[19:29] <fsphil> get it compiled first
[19:29] <ibanezmatt13> ok :)
[19:30] <mfa298> looking at the history on my pi I don't think I had to install gcc and make so you should just be able to "cd ssdv" and "make"
[19:30] <fsphil> they're in raspbian by default I think
[19:30] <fsphil> maybe not git
[19:30] <ibanezmatt13> where will the compiled file be stored, and where should I move it to when I want to use it
[19:31] <fsphil> it'll just be in the ssdv directory
[19:31] <ibanezmatt13> Where shall I run it from?
[19:31] <fsphil> I don't think I ever did a make instal
[19:31] <fsphil> you could run it from there
[19:31] <mfa298> I think git and cmake are the only dev tools I've had to install
[19:31] <Maxell> There is another launch today?
[19:32] <fsphil> Maxell: Pico flight in the US
[19:32] <fsphil> N6ARA-11
[19:32] <fsphil> wonder if N6ASA was taken
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[19:32] <Maxell> Will it also do RTTY? :)
[19:32] <ibanezmatt13> So, which folder shall I put the compiled program in so that my commands in the bash terminal will run, sbin?
[19:32] <fsphil> just APRS I think
[19:33] <mfa298> I think if you run "make install" it will install it into /usr/bin
[19:33] <Maxell> Not in the UK? :o
[19:33] <ibanezmatt13> Thanks
[19:33] <mfa298> stanard places to install software are /usr/local/bin or /usr/bin
[19:33] <fsphil> Maxell: it's in Los Angeles
[19:34] <fsphil> ooh I did do a make install
[19:34] <mfa298> /sbin and /usr/sbin are for sysadmin level tools
[19:34] <fsphil> yea so run, sudo make install
[19:34] <fsphil> after it's compiled
[19:34] <mfa298> it looks like a pretty decent makefile for a small app.
[19:35] <fsphil> putting configure in there would have been evil
[19:35] <mfa298> just no make uninstall - although I'm not sure anyone ever uses make to uninstall stuff
[19:36] <mfa298> I've never got into using autoconfig and automake to so stuff like that.
[19:36] <fsphil> fswebcam uses autoconf. I'm not a fan though
[19:36] <mfa298> it seems like a lot of faff for small tools - I think I can see the point for something much larger
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[19:40] <chrisstubbs> hmm windows server 2k8 does not like being moved to another hard druve
[19:40] <chrisstubbs> its deactivated itself and explorer wont start
[19:41] <Maxell> fsphil: ah, k thanks.
[19:41] <Maxell> I'll see if I hear something tomrrow
[19:42] <fsphil> yes pie should be an interesting flight
[19:42] <mfa298> chrisstubbs: I'm not sure any OS likes being moved that much. Tends to be a challenge moving forms of windows at all as they like hiding files so you can't normally see them all.
[19:42] <Maxell> mfa298: Linux has no problems with being swapped to new hardware.
[19:42] <chrisstubbs> I copied the entire partition in gparted then fixed the MBR
[19:42] <Maxell> I can swap the same disk between different desktops and it will run just fine.
[19:43] <chrisstubbs> probably just a security thing, I even have a legit key
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[19:44] <mfa298> Maxell: there's a difference between moving a drive between machines and trying to move data around.
[19:44] <mfa298> although windows tends to keep track of various things internally which makes moving it around harder
[19:45] <Maxell> Hmm k
[19:45] <Maxell> Could this be intresting for our science payload? https://www.tindie.com/products/TAUTIC/as3935-lightning-sensor-board/ :P
[19:45] <craag> habexpico's altitude rate on spacenearus looks a little strange..
[19:46] <fsphil> 0.1 m/s?
[19:47] <mfa298> that's a very accurate altitude
[19:47] <craag> erm i've got -115m/s
[19:47] <mfa298> I'm seeing 156.0576 m
[19:47] <craag> ah refresh seems to have fixed it.
[19:48] <fsphil> the altitude is converted from old appendage measurements
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[19:49] <mfa298> that's presumably a downside to importing from arps.fi
[19:49] <chrisstubbs> sod windows server im installing windows 7
[19:49] <fsphil> not 8? :)
[19:50] <mfa298> windows server is only really useful if you want to do server type things with it. I wouldn't want to use it as a desktop.
[19:52] <chrisstubbs> I just used XP as a "server" before
[19:52] <chrisstubbs> 2008 worked okay but I just put it on a 80gb hdd as its all i had to hand, which soon got full up
[19:53] <fsphil> the win8 interface on server 2012 is nasty
[19:53] <mfa298> I've not played with 2012 yet - I probably ought to at some point.
[19:54] <chrisstubbs> hence why im not using windows 8 either ;)
[19:55] <chrisstubbs> the one good thing about being at college is free windows sevrer licenses
[19:55] <mfa298> I've not find win8 too bad after the initial getting used to it.
[19:55] <mfa298> s/find/found/
[19:56] <chrisstubbs> Ive heard the same, but I also heard win 8.5 / 9 is going to go back to the old style interface
[19:56] <chrisstubbs> not sure where I heard that :P but still
[19:56] <fsphil> I've only used it via RDP - which makes finding the magic spot to open the start menu is tricky
[19:56] <fsphil> -is
[19:57] <fsphil> it needs to be nearly pixel perfect - reminds me of playing Lemmings on the Amiga back in the day
[19:57] <fsphil> I think arko has launched
[19:57] <mfa298> I wouldn't be surprised if windows 8.x gets some sort of start menu back and has the option of booting straight to the desktop
[19:58] <chrisstubbs> Yeah the fact that you cant get rid of the metro thing is annoying
[19:58] <fsphil> yep. even an option would have been nice
[19:59] <fsphil> instead they GNOME3'ed us
[19:59] <mfa298> what happens in the future probably depends on what happens with the tablet/laptop market
[20:00] <chrisstubbs> thats true
[20:00] <mfa298> with the way the hardwares going if win8 had come out in a years time it might have made a lot more sense to work like it does
[20:00] <chrisstubbs> And I'm still a beliver that these changes have to be made, as crappy as they are, to progress in the market
[20:01] <mfa298> for the 30+ people they'll remember the last big change (or two) and how much people hated it at first.
[20:02] <mfa298> All the crys of "you have to click start to shutdown, that doesn't make sense, why would they do that!"
[20:02] <fsphil> I quite liked win95
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[20:02] <fsphil> compared to win3.11 it was quite amazing
[20:02] <mfa298> win 3.1 is where it's at, bring back program manager
[20:02] <fsphil> they almost have .. we have a grid layout again :)
[20:02] <mfa298> lol
[20:02] <SpeedEvil> windows 1
[20:02] <chrisstubbs> it pains me to say it, but there is a machine at work running win3.1
[20:03] <fsphil> lol
[20:03] <SpeedEvil> tiled windows are overrated
[20:03] <chrisstubbs> well at least thats what it looks like
[20:03] <arko> fsphil: JUST LAUNCHED
[20:03] <arko> WOO!!!
[20:03] <chrisstubbs> :D
[20:03] <fsphil> arko: looking good!
[20:03] <arko> :)
[20:03] <arko> its working :D
[20:03] <chrisstubbs> arko, what balloon?
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[20:05] <arko> woo!!
[20:05] <arko> 350
[20:05] <arko> HAB350
[20:06] <fsphil> expecting it to burst? I can setup the prediction
[20:06] <fsphil> not so useful if it'll float
[20:07] <arko> its 28000m
[20:08] <fsphil> ascent and decent?
[20:10] <arko> 2.2 rise
[20:10] <arko> 2.2 fall
[20:12] <arko> could i get live prediction?
[20:12] <G4MYS> see you all early! de G4MYS
[20:13] <fsphil> arko: done
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[20:13] <fsphil> yikes
[20:13] <fsphil> that's quite a drive
[20:16] <arko> haha
[20:16] <arko> not planning on recovery
[20:16] <arko> thanks fsphil!!!
[20:16] <arko> :)
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[20:19] <Lunar_Lander> Babs, ah ok
[20:19] <Lunar_Lander> sorry went to dinner
[20:21] <Lunar_Lander> hi arko
[20:22] <arko> hi!
[20:22] <arko> spacenear.us/tracker/?filter=N6ARA-11
[20:22] <arko> track her fly
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[20:23] <fsphil> Escape from LA
[20:24] <Lunar_Lander> arko, what is on the flight?
[20:26] <arko> just a tracker
[20:26] <arko> i designed in like 1 week or so
[20:26] <Lunar_Lander> ah
[20:26] <arko> im happy its actually working
[20:26] <Lunar_Lander> like my new board?
[20:26] <Lunar_Lander> if you have seen it
[20:26] <arko> ublox6, 328 and hx1
[20:27] <arko> its a blend of upus stuff and trackduino
[20:27] <Lunar_Lander> yeah mine is similar
[20:27] <Lunar_Lander> only a microSD slot instead of radio
[20:27] <fsphil> drop hundreds of microSD cards to track it?
[20:27] <Lunar_Lander> xD as I said it will fly on another balloon which has a 70 cm radio
[20:27] <Lunar_Lander> so we have to check frequencies first
[20:29] <chrisstubbs> :O there is an essex in california
[20:30] <fsphil> Big Bear Lake .... there's two meanings to that name
[20:35] <Lunar_Lander> arko, did I show you the new board?
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[20:43] <cuddykid> crazy people - http://www.guardian.co.uk/sport/video/2013/may/24/saudi-arabia-sidewalk-skiing-video
[20:44] <cuddykid> apparently it's not remotely dangerous according to them.. lol
[20:44] <chrisstubbs> hahaha
[20:44] <cuddykid> the bit at the end is just brilliant
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[20:49] <chrisstubbs> cuddykid, when you used the SD card before, was that with an RFM22B or NTX2?
[20:49] <cuddykid> ntx2
[20:50] <cuddykid> I have a space for microSD socket on my rfm board but haven't used it yet
[20:50] <chrisstubbs> Ah, I need to figure out if sd will affect the rfm22b at all becuase they are both SPI
[20:50] <cuddykid> should be ok using NSEL i believe
[20:51] <cuddykid> I'll probably scrap the microSD on next smaller tracker - the DL is now very good with all our listeners
[20:51] <cuddykid> still, it's nice to have the logging capability
[20:53] <chrisstubbs> I added it so i could make some normal GPS loggers without transmitters
[20:53] <chrisstubbs> from the same boards i was having done
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[20:58] <chrisstubbs> oooooooooooooooooooooooohyeahhhhh
[20:59] <chrisstubbs> turns out there is a 100mb partition you have to copy as well as the main one on a server install
[20:59] <chrisstubbs> otherwise it boots fine, but never works properly
[20:59] <mfa298> there's a 100mb partition that's pretty standard on a lot of OS installs.
[21:00] <Lunar_Lander> yeah I think you get that on Windows 7 also
[21:00] <chrisstubbs> never noticed it before now
[21:00] <mfa298> I'm pretty sure it's related to EFI boot systems
[21:00] <Lunar_Lander> it specifically tells you that it does a 100 MB partition called "partition 0"
[21:00] <mfa298> I think it's also on some linux distros now
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[21:21] <ibanezmatt13> For recieving 70cm SSB, what was that Yagi antenna that could be used?
[21:22] <ibanezmatt13> It doesn't have to be Yagi, it could be a Watson or something like that; I just need one that's not too expensive. By that I mean less that £50
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[21:29] <LazyLeopard> Diamond A430S10R?
[21:30] <LazyLeopard> Watson HB9CV-70 is only 2-element.
[21:33] <Lunar_Lander> hm
[21:34] <Lunar_Lander> the BMP085 datasheet does say how the pressure sensing works, but not the temperature sensing
[21:34] <Lunar_Lander> not that nice
[21:34] <Lunar_Lander> bosch sensortec also has no info on the website
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[21:36] <ibanezmatt13> LazyLeopard: Thanks :)
[21:37] <ibanezmatt13> I was thinking of something that was non-directional for ease of use?
[21:38] <LazyLeopard> Then perhaps a colinear would be better.
[21:38] <SpeedEvil> yagis have the advantage that you can be sure you will point it wrong most of the time.
[21:38] <SpeedEvil> this tels you where the payload probably is ant
[21:39] <ibanezmatt13> So it's better to get a Yagi for the roof?
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[21:41] <LazyLeopard> I use a colinear. No turning required. Not quite the range of the yagi though.
[21:42] <ibanezmatt13> What's the range difference, roughly?
[21:42] <LazyLeopard> ...but the yagi needs a rotator.
[21:42] <ibanezmatt13> It would probably be better to get a collinear then. Would that Diamond you linked before be ok?
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[21:44] <LazyLeopard> That Diamond is a ten-element yagi. Works very nicely for balloon tracking IF it's pointed in the right direction.
[21:44] <ibanezmatt13> Are there any affordable collinear antennas?
[21:46] <LazyLeopard> Mostly they tend to be dual-band or tri-band and that adds to the cost.
[21:46] <griffonbot> @daveake: Got a model A Pi running from as low as 3V by swapping the reg. More batt life for tomorrow's flight! #raspberry_pi #UKHAS [http://twitter.com/daveake/status/338410748709580801]
[21:48] <LazyLeopard> ...and the cheaper ones don't give quite the gain.
[21:48] <griffonbot> @OK1RIG: RT @daveake: Got a model A Pi running from as low as 3V by swapping the reg. More batt life for tomorrow's flight! #raspberry_pi #UKHAS [http://twitter.com/OK1RIG/status/338411380375945216]
[21:49] <h4yn0nnym0u5e> LazyLeopard: BMP085 datasheet p12 seems to show both pressure and temp calcs - http://www.adafruit.com/datasheets/BMP085_DataSheet_Rev.1.0_01July2008.pdf
[21:49] Last message repeated 1 time(s).
[21:49] <Lunar_Lander> h4yn0nnym0u5e, thank you
[21:49] <Lunar_Lander> that is the datasheet we all know
[21:50] <LazyLeopard> h4yn0nnym0u5e: I think you wanted Lunar_Lander ;)
[21:50] <Lunar_Lander> the thing is that I am after the physical principle it relies on
[21:50] <Lunar_Lander> i.e. what thermometer is inside?
[21:50] <Lunar_Lander> for pressure it says that it is piezo-electric
[21:50] <h4yn0nnym0u5e> Lunar_lander* (opps, sorry, noob here...)
[21:51] <LazyLeopard> ibanezmatt13: A Watson W-30 just gets in under the 50 quid line, but its 70cms gain's only 6dB
[21:53] <Lunar_Lander> no problem :)
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[21:59] <LazyLeopard> I got the tri-band one I use from Moonraker. It has a quoted gain of 8.4dBd on 70cms
[22:00] <LazyLeopard> ...but cost nearer 90 than 50 quid.
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[22:04] <LazyLeopard> They also do some single band verticals
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[22:09] <mfa298> getting the antenna in a good location (up high) is generally going to help more than a few dB of gain.
[22:10] <mfa298> ibanezmatt13: if you want a really cheap option there are a few types of antenna you can make. But you then need to make sure they're waterproof (if being left outside)
[22:10] <LazyLeopard> ...and too much gain on a co-linear means you'll lose a balloon that's nearly overhead, too.
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[22:10] <mfa298> I'd probably go with a diamond/watson/comet vertical (co linear)
[22:10] <arko> can aprs block callsigns?
[22:11] <arko> im not sure if my payload stopped transmitting or if they are blocking it
[22:11] <LazyLeopard> If it's in a busy area it may just not be getting heard?
[22:12] <arko> possible
[22:12] <arko> its over the desert now
[22:12] <arko> not sure if there are towers ther
[22:12] <arko> i thought there were
[22:12] <LazyLeopard> Ah. That too. ;)
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[22:14] <arko> but it looks like it's in range of plenty
[22:14] <arko> on aprs.fi
[22:20] <arko> anyone know how to get in contact with the people who run aprs?
[22:20] <arko> oh7lzb: you around?
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[22:30] <fsphil> aprs.fi blocks clients from querying too much, to prevent robots
[22:30] <fsphil> but I don't think it limits data from the APRS-IS network
[22:36] <arko> yeah
[22:36] <arko> im not sure if it's dead or what
[22:36] <arko> i think it died
[22:36] <arko> damn it
[22:42] <fsphil> I'm running a program that connects directly to the APRS-IS
[22:42] <fsphil> will watch for anything in that area
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[22:45] <mfa298> I think aprs.fi gives warnings if it's getting lots of packets for a station but will still show the location
[22:45] <fsphil> nothing's appeared on the aprs-is for it
[22:45] <fsphil> so I guess it's either out of range or not tx'ing
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[22:46] <Maxell> arko: it's out of range for you too?
[22:49] <Maxell> "This station appears to be flying at high altitude and using digipeaters, which causes serious congestion in the APRS network. The tracker should be configured to only use digipeaters when at low altitude."
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[22:50] <fsphil> that wouldn't stop it being received
[22:52] <Maxell> hmm kay. /me doesn't yet understand APRS fully.
[22:53] <Maxell> Ok, I'll look up a video of it and go take a nap. I play to RX the 6 am balloon.
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[22:53] <Willdude123> Hi.
[22:53] <Maxell> Hello.
[22:53] <Willdude123> Where are the PIE6 predictions heading?
[22:55] <Willdude123> Also, why wasn't there a launch announcement?
[22:58] <fsphil> Willdude123: there was
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[23:07] <Willdude123> fsphil, I can't see it on the google group.
[23:09] <fsphil> https://groups.google.com/forum/#!topic/ukhas/m66qFJLBzHo
[23:11] <Willdude123> Oh
[23:12] <Willdude123> Where are the predictions heading?
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[23:39] <fsphil> arko: it's back
[23:39] <fsphil> about to land
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[23:43] <daveake> ooer
[23:43] <daveake> Was reading the log for this evening - thought it was lost
[23:44] <fsphil> yea I wasn't expecting that
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[23:46] <griffonbot> Received email: David Akerman "[UKHAS] Re: Launch Announcement - Brightwalton - Sunday 26th May"
[23:50] <griffonbot> @daveake: PIE6 should launch around noon-1pm today, sending telemetry and live images. See http://t.co/1bqhemUKIp for details #raspberry_pi #UKHAS [http://twitter.com/daveake/status/338441912912605184]
[23:50] <Willdude123> Was just about to ask when you were launching :-)
[23:50] <daveake> Doesn't seem right saying "today" when I've not got to bed yet
[23:51] <Willdude123> Doubt I'll receive anything.
[23:51] <daveake> Well, you're not far, however 600 baud may be a struggle
[23:51] <Willdude123> I did manage to with an ava flight from brightwalton
[23:51] <daveake> The FEC helps
[23:52] <daveake> I was quite impressed earlier that the Pi would boot and run happily on a mere 3.0V
[23:52] <Willdude123> Can you ask god to send it this way plz?
[23:52] <Willdude123> Wow
[23:52] <daveake> which one? so many to choose from
[23:52] <Willdude123> Flying spaghetti monster
[23:53] <daveake> oh her
[23:54] <daveake> If I can get it to go a little further people might still receive after it's landed http://habhub.org/predict/#!/uuid=4ba06e8c7cdb0935aec23d01e6484784df31de33
[23:54] <daveake> Some decent hills there
[23:54] <Willdude123> I was wondering, do many hams manage to contact the ISS if they try?
[23:55] <Willdude123> It's just gonna move away from me,
[23:55] <Willdude123> :'(
[23:55] <daveake> It'll move away from most people
[23:56] <SpeedEvil> a 40km high antenna tower will increase the contact time a fair bit
[23:56] <daveake> There'll be listeners in France so Basingrad should be fine
[23:56] <Willdude123> People use them???
[23:56] <Willdude123> Haja
[23:56] <Willdude123> *haha
[23:56] <Willdude123> Bruv.
[23:56] <Willdude123> Only Popley is chavvy.
[23:57] <Willdude123> http://en.uncyclopedia.co/wiki/Basingstoke
[23:57] <Willdude123> ^I wrote most of that
[00:00] --- Sun May 26 2013