[00:02] <fsphil> I can smell my laptop
[00:03] <nigelvh> That's probably not a good thing...
[00:05] <fsphil> the submission page seems to be dead
[00:05] <fsphil> oh going again
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[00:06] <Randomskk> aww, google got 390
[00:06] <Randomskk> and technion.ac.il :|
[00:06] <Randomskk> 392 is positively old
[00:07] <Randomskk> 384 is mental...
[00:07] <Lunar_Lander> google tries it too?
[00:08] <fsphil> hehe, my best so far is "XkZ9d"
[00:08] <fsphil> 424
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[00:09] <fsphil> I should be sleeping
[00:09] <nigelvh> What's this we're guessing at?
[00:10] <craag> nigelvh: http://almamater.xkcd.com/
[00:10] <craag> We're trying to crack the skein hash listed there.
[00:11] <craag> But as that's theoretically unachievable, we're trying to get as close as possible to it.
[00:11] <nigelvh> I see.
[00:12] <nigelvh> My first guess was 499 bits.
[00:12] Nick change: russss_ -> russss
[00:12] <craag> I'm not quite sure why I'm doing it tbh, but it's keeping my room warm :)
[00:13] <fsphil> suspect the values I'm testing now are all well tested already
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[00:34] <Randomskk> ok
[00:34] Action: Randomskk spins up 20 c1.xlarge instances
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[00:35] <craag> :D
[00:35] <Randomskk> just finished automating a script
[00:36] <Randomskk> so they can start and submit results entirely independently
[00:36] <fsphil> the big guns
[00:36] <Randomskk> might go for more
[00:36] <Randomskk> spot instances are cheap
[00:36] <fsphil> 423
[00:36] <fsphil> I should probably give up
[00:40] <Randomskk> 90MH/s
[00:40] <Randomskk> 20 servers, 8 cores
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[00:42] <Randomskk> another 30
[00:42] <craag> :O
[00:46] <fsphil> is there a command to tile all the sessions in screen?
[00:48] <craag> Right I'm out. Gonna leave the uni server jobs running overnight to see if they manage anything but won't be up to enter it.
[00:49] <craag> gn and good luck!
[00:49] <fsphil> nite
[00:56] <Randomskk> 230 000 000 hashes a _second_
[00:56] <Randomskk> still not enough though
[00:58] <Randomskk> another 49. let's go for 100
[01:03] <nigelvh> Someone's got some money to burn on EC2
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[01:05] <Randomskk> at 10¢/hr it's not so bad
[01:06] <Randomskk> wonder if I can hit 1GH/s
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[01:06] <Randomskk> need 223 servers
[01:06] <Randomskk> that's... that's a lot.
[01:06] <Randomskk> I don't think I'll be doing that today.
[01:09] <nigelvh> Well, at 100 boxes you're looking at 10$/hr, that's more than minimum wage here.
[01:10] <Randomskk> I suppose so
[01:10] <nigelvh> What's the payoff to this? Any prize?
[01:10] <Randomskk> just pride
[01:10] <nigelvh> Ah, so definitely worth more than $10/hr then.
[01:11] <Randomskk> do I detect sarcasm there
[01:11] <Randomskk> also more legitimately, I now have a ton of hands on experience deploying a huge cloud of servers to automatically set up and work on problems and centralise results
[01:11] <nigelvh> What? Me? Never.
[01:11] <Randomskk> which will probably come in handy
[01:11] <Randomskk> the competition ends in four hours
[01:11] <nigelvh> Also yes. The experience is good.
[01:11] <Randomskk> anyway
[01:12] <nigelvh> But you could have more...
[01:12] <nigelvh> Also, when the competition ends, just switch them over to mining bitcoins.
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[01:13] <Randomskk> I doubt that would be economic :P
[01:13] <Randomskk> when the competition ends amazon will shut them down automatically for me
[01:13] <nigelvh> It's probably be more economic than no payoff.
[01:13] <nigelvh> It'd*
[01:13] <Randomskk> hah
[01:13] <Randomskk> true
[01:15] <Randomskk> 33% chance of getting 3rd place now though
[01:15] <Randomskk> 3% *
[01:15] <JamieCH> What're you running, Randomskk?
[01:15] <Randomskk> JamieCH: 100 8-core EC2 servers
[01:15] <JamieCH> Wow, okay
[01:15] <JamieCH> Fairly impressive ^.^
[01:16] <Randomskk> plus 8 12-core servers at the engineering dept
[01:16] <Randomskk> but let's face it, those are not really in the same league as this cloud :P
[01:16] <JamieCH> Using your own (c-based?) hash generator?
[01:16] <Randomskk> yes and yes
[01:16] <JamieCH> Mine is only a little Python thing
[01:17] <JamieCH> But then, it's only running on one laptop
[01:17] <Randomskk> oxford just got 389!!! noooo!!!
[01:17] <nigelvh> Come on Randomskk, go for the 200 servers!
[01:17] <Randomskk> :| :| :|
[01:17] <Randomskk> oh why not
[01:17] <nigelvh> Can't let oxford win!
[01:18] <Lunar_Lander> I wonder what the line is
[01:19] <Randomskk> another 21 requested from us-east-1
[01:19] <Randomskk> us-west-1's spot price is too high
[01:19] <Lunar_Lander> you're actually spending money?
[01:19] <nigelvh> Also, amazon must hate/love xkcd. 1. a pile of money coming in now, 2. their sysops must have their hair on fire keeping up with making sure there are systems available for these xxxx huge servers.
[01:20] <nigelvh> Suppose it depends on how much spare capacity amazon keeps available for EC2.
[01:21] <nigelvh> I've got a buddy who works there. Should ask him.
[01:21] <Randomskk> another 100 requested from north california
[01:22] <Randomskk> their spot price is low too, nice
[01:22] <Randomskk> up to 100 in n. virginia
[01:22] <Lunar_Lander> nigelvh, there was another competition in fact
[01:23] <Lunar_Lander> I did tell you of that I think
[01:23] <Lunar_Lander> that 150 g payload slot on the lake constance balloon
[01:24] <Randomskk> n. california coming up
[01:24] <Lunar_Lander> lets hope that Skynet won't result out of that
[01:24] <Randomskk> 98 up in n cali
[01:28] <JamieCH> What's your hash rate with all these instances?
[01:28] <Randomskk> 1TH/s
[01:28] <JamieCH> I can't imagine many groups are running at that sort of rate
[01:28] <Randomskk> maybe
[01:29] <Randomskk> but also there isn't much time left
[01:29] <Randomskk> which is the more important thing
[01:29] <JamieCH> Really we need a Skein1024 cuda implementation to run on EC2's gpu instances
[01:29] <Randomskk> yes
[01:29] <Randomskk> that'd be the thing
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[04:13] <arko> uggg
[04:13] <arko> so much food
[04:13] <nigelvh> delicious delicious food
[04:21] <arko> had amazing chicken strips
[04:21] <arko> had no guilt ordering the kids meal
[04:25] <arko> well
[04:25] <arko> looks like im going to launch a hab at Layerone
[04:25] <arko> :)
[04:25] <arko> small one
[04:25] <arko> pico
[04:25] <nigelvh> Cool
[04:25] <arko> they gave me a time slot on sat right before lunch
[04:25] <arko> then at lunch we launch
[04:25] <arko> as a demo!
[04:25] <arko> aprs, gonna try to do a floater
[04:28] <nigelvh> APRS should work well for you
[04:28] <arko> yep!
[04:28] <nigelvh> I'm trying to make a small application in processing
[04:28] <arko> fun
[04:28] <arko> makes it easy
[04:29] <nigelvh> Yeah, processing itself is rather easy. I'm working with controlP5 to do some of the GUI stuff, and I'm not entirely pleased with the documentation.
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[04:32] <arko> oh god, the documentation is horrid
[04:32] <nigelvh> Yeah
[04:32] <nigelvh> It's mostly like "Stuff exists. Use it."
[04:33] <nigelvh> Though in theory it makes nice gui bits.
[04:33] <arko> yeah
[04:34] <nigelvh> Though, most of the elements would be easy to make by hand, except a dropdown box...
[04:37] <nigelvh> Maybe I can get around needing a dropdown box...
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[04:42] <griffonbot> Received email: Costyn van Dongen "Re: [UKHAS] Re: Proposed launch of AURA & AURA2"
[04:43] <KT5TK_QRL> Final changes for PecanPico3: http://dl.dropbox.com/u/5676413/PecanPico3Sch.pdf http://dl.dropbox.com/u/5676413/PecanPico3Brd.pdf
[04:44] <nigelvh> That's some routing you've got going on.
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[04:44] <KT5TK_QRL> You want the Eagle files to be able to follow the tracks?
[04:45] <nigelvh> Nah, I'm just looking at the schematic mostly. Where does XOUT go?
[04:45] <nigelvh> Oh, I see it there.
[04:45] <nigelvh> Why do you have it set up like that?
[04:45] <arko> damn i love pink tape
[04:45] <KT5TK_QRL> I just put a couple of caps in that region so that I have options to build any matching network that may make sense
[04:46] <nigelvh> Alrighty.
[04:46] <KT5TK_QRL> I'll certainly not populate all of them
[04:46] <nigelvh> Makes sense.
[04:46] <KT5TK_QRL> Maybe I'll replace some with resistors
[04:46] <nigelvh> What other changes have you made?
[04:47] <KT5TK_QRL> GPS antenna
[04:47] <KT5TK_QRL> Now a chip antenna will fit
[04:47] <nigelvh> Oh yes, I see that now.
[04:47] <KT5TK_QRL> some more test pads for easier access to RXD TXD
[04:48] <arko> anyone have recommended balloons for picos?
[04:48] <KT5TK_QRL> I buy the Mylars at the local party store. Already filled
[04:49] <nigelvh> Haha, I was about to ask what that odd symbol at the top left was, but realized it's your callsign on the top and bottom layers.
[04:49] <KT5TK_QRL> They cost ~$8. With- or without Helium
[04:50] <KT5TK_QRL> The callsign is kinda symmetric.
[04:50] <KT5TK_QRL> even in cw
[04:50] <nigelvh> It is. Kinda neat
[04:50] <nigelvh> I like how the 'K's line up
[04:50] <KT5TK_QRL> Much cooler was our German club call:
[04:50] <KT5TK_QRL> DL0FU
[04:51] <KT5TK_QRL> Forward and backward the same
[04:51] <KT5TK_QRL> in CW
[04:51] <nigelvh> Nice
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[04:53] <nigelvh> Looks pretty good to me. Really, my only recommendations from the last board were the caps, so I think you're in good shape.
[04:54] <KT5TK_QRL> Ah, I also connected the RTC this time
[04:54] <KT5TK_QRL> The output.
[04:55] <KT5TK_QRL> I ran a wire last tim
[04:55] <nigelvh> Good plan
[04:55] <nigelvh> RTC would be handy on a WSPR board to avoid needing the GPS to time transmissions.
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[04:56] <nigelvh> Do you have a backup battery, or are you just going to set it on boot with GPS time?
[04:56] <KT5TK_QRL> I'll set it with GPS and update it in each cycle.
[04:57] <KT5TK_QRL> Not implementet yet though.
[04:57] <KT5TK_QRL> implemented
[04:58] <nigelvh> So the idea is just to be able to keep the GPS off longer?
[04:58] <KT5TK_QRL> Well maybe also a kind of watchdog
[04:59] <KT5TK_QRL> and some time data when the GPS drops out for some reason
[04:59] <nigelvh> mmhmm
[04:59] <nigelvh> Is the output connected to an hardware interrupt pin?
[05:00] <KT5TK_QRL> Now that you say this I have to rethink...
[05:00] <nigelvh> That's really where you'll get the most out of "watchdog" capability
[05:00] <KT5TK_QRL> Maybe I should better switch pins
[05:02] <KT5TK_QRL> I have INT0 with the Radio IRQ (which I don't really need
[05:02] <KT5TK_QRL> )
[05:02] <nigelvh> That could still be a handy one if INT1 is still available
[05:02] <nigelvh> or easily switched.
[05:02] <nigelvh> Though, my implementation doesn't use the radio IRQ pin at all, so there's that.
[05:03] <KT5TK_QRL> Maybe some solder jumper or 0 Ohm resistors.
[05:03] <nigelvh> Also, is AUDIO on a PWM pin?
[05:03] <KT5TK_QRL> Yes, that is
[05:04] <KT5TK_QRL> That's how I always have it. Like Trackuino
[05:04] <nigelvh> I don't see OC1A/B and OC2 on there, perhaps OC0 isn't listed...
[05:04] <nigelvh> I only see*
[05:05] <nigelvh> I've tended towards using OC1 as that's a really nice 16 bit timer that's not used much in the arduino environment, so it's free to fiddle with.
[05:06] <KT5TK_QRL> For Audio out?
[05:06] <nigelvh> Yeah
[05:08] <nigelvh> Actually, my last board used OC2, but either way, an output compare output can give you waves with NO processor power.
[05:08] <nigelvh> Quite nice.
[05:09] <KT5TK_QRL> You need to show me your AFSK code one day. I'm happy that I got the Trackuino code working
[05:09] <nigelvh> Though, your trackuino code is a bit different.
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[05:10] <KT5TK_QRL> Yes, but that audio generation part is merely untouched.
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[05:11] <KT5TK_QRL> I focused on the radio chip drivers and build some convenience functions to expand functionality
[05:11] <nigelvh> My AX.25 code is half interrupt, half blocking. The tones are done in interrupts, and timing of the tones is presently blocking. Eventually I'll get around to fixing that up.
[05:12] <KT5TK_QRL> BTW I got my Si446x driver compiled and functional.
[05:12] <nigelvh> http://digitalnigel.com/wordpress/wp-content/uploads/2013/04/Iris.txt
[05:13] <KT5TK_QRL> Though I still have trouble with unstable oscillations
[05:14] <KT5TK_QRL> Thanks.
[05:14] <nigelvh> You'll see in my setup I set the timer to toggle the output compare pin on a match, and just adjust the match value to get different tones.
[05:15] <nigelvh> Square waves, but very very little processing effort, and the square waves should get handled in the filter.
[05:16] <KT5TK_QRL> I see. Sould be good enough.
[05:16] <nigelvh> It works
[05:17] <nigelvh> So I suppose that's a point in the "good enough" category.
[05:17] <nigelvh> Like I said, eventually I'll try to get everything in interrupts, but for now it works well.
[05:19] <KT5TK_QRL> The trackuino method is nice because you can fine adjust the sine output in volume and you can even shift the center frequency of the VCXO in software.
[05:19] <KT5TK_QRL> However sometimes I think the audio output is not clean because of interruptions in the flow
[05:20] <nigelvh> Yes. that's very true. I added an extra resistor in the filter to reduce volume and adjust the frequency with the tuning of the 7012.
[05:20] <KT5TK_QRL> Some receive modems seem to have trouble with that.
[05:20] <nigelvh> Which modem did you have issues with?
[05:21] <KT5TK_QRL> E.g. OpenTracker+ can't decode any Trackuino transmission
[05:21] <nigelvh> Hmm. I haven't tried with an OpenTracker...
[05:21] <KT5TK_QRL> OT2 and 3 work
[05:21] <nigelvh> I know sometimes AGWPE doesn't like my packets, but I'm not convinced AGWPE is a great decoder anyway.
[05:22] <nigelvh> MixW decodes perfectly every time.
[05:22] <KT5TK_QRL> My Kenwood TH-D72 decodes them always
[05:23] <nigelvh> Yeah
[05:23] <KT5TK_QRL> My old KPC3 about 50%
[05:24] <nigelvh> Hmm
[05:25] <nigelvh> I haven't really used trackuino much. It would be interesting to do a head to head.
[05:25] <KT5TK_QRL> Good point
[05:26] <KT5TK_QRL> On the other hand OT1+ is a very good transmitter
[05:26] <KT5TK_QRL> of audio
[05:27] <KT5TK_QRL> almost all packets get decoded
[05:27] <KT5TK_QRL> at any igate
[05:28] <nigelvh> I haven't had any issues getting into igates that I've noticed.
[05:28] <KT5TK_QRL> A OT1+ and a HX1 work great
[05:29] <KT5TK_QRL> So I wonder what Scott makes better than Trackuino
[05:29] <nigelvh> Probably better timing and more sine points.
[05:30] <nigelvh> (Random guess)
[05:30] <KT5TK_QRL> His code is Open Source. As far as I remember he even uses less data to describe the sine
[05:31] <nigelvh> Is it open source? I don't recall it being so.
[05:31] <KT5TK_QRL> But it's a faster processor
[05:31] <KT5TK_QRL> Yes, it's open, but you need a commercial compiler and an expensive chip burner
[05:32] <nigelvh> Yeah, the commercial compiler probably helps with timing a good bit.
[05:33] <KT5TK_QRL> https://svn.freepository.com/50lItuLQ7fW6s-web/browser
[05:35] <nigelvh> Have you put the '0's preamble on your transmissions?
[05:36] <KT5TK_QRL> Yes, I did that. After suggestion from Scott himself
[05:36] <nigelvh> Yeah, I did notice that helped.
[05:36] <nigelvh> Also, he's doing most of his modulation in assembly, that I'm sure makes a big difference.
[05:37] <KT5TK_QRL> Yes, his code is quite professionsl
[05:38] <KT5TK_QRL> professional
[05:38] <nigelvh> Looks like his sine waves are stored in a sixteen bit table
[05:39] <nigelvh> I'm going to guess that's more than the trackuino.
[05:40] <KT5TK_QRL> I have 512 datapoints, but for a full period
[05:40] <nigelvh> Yes, but at what resolution?
[05:41] <KT5TK_QRL> same
[05:42] <nigelvh> Hmm
[05:42] <Upu> morning all
[05:42] <nigelvh> Morning
[05:42] <KT5TK_QRL> I guess the ATmega is at its computing limit
[05:43] <KT5TK_QRL> and skips a few datapoints now and then
[05:43] <KT5TK_QRL> morning Upu
[05:43] <nigelvh> I don't think we're really at the limit. I just don't think trackuino is the most efficient.
[05:43] <KT5TK_QRL> possible
[05:44] <nigelvh> Granted I don't bother with sine waves, but I don't have problems with the waveform.
[05:46] <KT5TK_QRL> Upu: Final changes for PecanPico3: http://dl.dropbox.com/u/5676413/PecanPico3Sch.pdf http://dl.dropbox.com/u/5676413/PecanPico3Brd.pdf
[05:46] <Upu> ok thanks I'll take a look later
[05:47] <KT5TK_QRL> Don't worry. It's early in the UK :)
[05:47] <Upu> far too early :)
[05:47] <KT5TK_QRL> I'll go home from work now.
[05:48] <nigelvh> Good plan
[05:48] <nigelvh> Home is good.
[05:48] <KT5TK_QRL> OK guys. See you tomorrow.
[05:48] <nigelvh> Evening
[05:49] <Upu> bye
[05:51] <nigelvh> How's the morning treating you Upu?
[05:51] <Upu> well just having my breakfast :) It looks cold but at least the sun is out
[05:51] <Upu> what time is it over there ?
[05:52] <nigelvh> Here it's 22:51
[05:53] <nigelvh> Working on making a little app with processing, which is becoming a hassle.
[05:55] <Upu> yeah I was scrolling back a little
[05:55] <nigelvh> Your plans for the day?
[06:02] <Upu> well going to work in about 5 mins
[06:02] <Upu> just finishing this cup of tea
[06:02] <Upu> in fact afk for 30 !
[06:03] <nigelvh> Sounds reasonable. That work thing. Earning monies and whatnot.
[06:16] <arko> ohh breakfast sounds good
[06:17] <nigelvh> I had meaty meaty pizza earlier. It was delicious.
[06:19] <arko> heh, i just like tea and toast
[06:19] <arko> tea, toast, feta cheese
[06:20] <nigelvh> I don't usually eat breakfast.
[06:20] <arko> the combination of hot toast + cold feta
[06:20] <arko> it works
[06:20] <arko> same here
[06:20] <arko> i wish i did more often
[06:20] <nigelvh> No, I actively choose not to. Makes life better.
[06:20] <arko> :O
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[06:21] <nigelvh> If I eat breakfast, I'm STARVING at like 10, if I don't eat breakfast, I'm fine with waiting till 12-2 for lunch
[06:23] <arko> although, this cafe up my street makes amazing quesadillas
[06:23] <nigelvh> I eat those for lunch or dinner.
[06:23] <arko> cheese, bacon, eggs
[06:23] <arko> sour cream, and salsa on the side
[06:23] <arko> so amazing
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[07:18] <fsphil> Randomskk: got 417 in the end, and a very toasty laptop. didn't even feature in the final results :)
[07:20] <costyn> just looked at the xkcd again. still don't understand what was the point
[07:21] <costyn> I mean, what did CMU 'win' when they found the biggest matching string
[07:21] <fsphil> their name in the comic :)
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[07:23] <fsphil> I did it on the amazingly remote chance that I found a really good one
[07:23] <costyn> yea there was that possibility
[07:23] <fsphil> it would have been quite funny to have a small high school at the top
[07:23] <costyn> and how did it end up with baidu?
[07:24] <fsphil> that was something to do with wiki edits, not sure
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[07:29] Nick change: Thorn__ -> Thorn
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[09:08] <griffonbot> Received email: MikeB "Re: [UKHAS] Re: Proposed launch of AURA & AURA2"
[09:08] <griffonbot> Received email: GMT "[UKHAS] Re: Proposed launch of AURA & AURA2"
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[09:26] <costyn> is Steve still launching today?
[09:27] <number10> last email said he was planning to
[09:27] <cuddykid> now need to source a go pro 3 + batt pack for tomorrow
[09:27] <cuddykid> don't think pcworld sell them anymore
[09:28] <cuddykid> ahah, argos sell them
[09:28] <cuddykid> yes, in stock!
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[09:34] <Brace> out of interest, what is the cheapest (and lightest) way to get a camera into a payload?
[09:36] <cuddykid> the cheapest/lightest video or stills?
[09:36] <cuddykid> stills just go for an A570
[09:36] <cuddykid> video - the go pros are definitely worth their steep price tag
[09:37] <costyn> Brace: but cheapest video, the 808 keychain cams that are being discussed on the mailing list
[09:37] <costyn> but the quality isn't that great
[09:37] <costyn> and they're not that reliable
[09:37] <number10> I dont like the fish eye effect on the horizon on gopro footage
[09:38] <costyn> number10: i agree
[09:38] <kokey> reminds me, need to buy a couple of A570s
[09:38] <Brace> stills
[09:38] <kokey> or something similar
[09:38] <costyn> Brace: get a 2nd hand Canon A<something> from ebay
[09:39] <kokey> what other models apart from the A570 is good?
[09:39] <costyn> Brace: i used a 30 euro A480 on my last flight
[09:39] <Brace> costyn: that's the sort of price I'm aiming for
[09:39] <costyn> Brace: here you can see the pics it took: http://imgur.com/a/8JY4w#12
[09:40] <cuddykid> you can remove the fish eye effect on go pro with some software I believe
[09:40] <costyn> there are a few go pro stills in there which have a lot less resolution
[09:40] <kokey> does the A480 take the same battery as most of the ixus models?
[09:40] <cuddykid> I've found with the A570, it's the SD card that will become full before the batteries run out :)
[09:41] <cuddykid> kokey: 2 AAs I believe
[09:41] <costyn> kokey: well the nice thing with the A480 is it takes 2 AAs so you can put the lithiums in
[09:41] <kokey> the lithium non-rechargables?
[09:41] <Brace> and you just load the firmware onto it to get it taking pics every few minutes
[09:41] <costyn> I think the important bits for a HAB stills are: ability to install CHDK and using regular AA's.
[09:42] <Brace> my mate is convinced he can get a rpi using a webcam that he's got and do it in 200gms
[09:42] <costyn> Brace: yep, check chdk.org
[09:42] <Brace> costyn: yeah that's the one
[09:42] <Brace> but I'm sceptical, so want a backup plan
[09:42] <costyn> sorry, http://chdk.wikia.com/
[09:42] <Babs> number10/costyn: you can buy an aftermarket lens adjuster which clips on the front and defisheyes (I'm sure that isn't a word) the video
[09:43] <Babs> (on the gopro)
[09:43] <costyn> Babs: cool, didn't know that. 'removes barrel distortion' I think is the term
[09:43] <Brace> yeah £200 for a gopro is out
[09:44] <Brace> trying to do the whole launch for that
[09:44] <Babs> Your biggest issue is controlling the temperature on the thing. I made a lovely little polystyrene cage for mine only to find out that it overheats fairly rapidly
[09:44] <Babs> But if you leave it outside the capsule in the cold then the battery life time diminishes rapidly
[09:45] <Babs> My solution was to place it outside but use a newtrent battery to supply power to it. Worked well (albeit there is extra weight involved)
[09:47] <kokey> I suppose the lithium non-rechargeables are lighter too
[09:47] <costyn> kokey: certainly
[09:48] <kokey> because I've had some amazing AA rechargeables but they were pretty heavy
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[10:07] <M0TVU> Good morning
[10:07] <M0TVU> Is there a launch this morning?
[10:08] <costyn> M0TVU: XABEN should be going up, not sure when
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[10:08] <M0TVU> ok
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[10:09] <gonzo__> bugger, I only get the digest from the group. So miss these things
[10:10] <costyn> gonzo__: yea Steve does sometimes do last minute announces
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[10:13] <gonzo__> dealing with 3rd parties, that's not unexpected
[10:13] <costyn> true
[10:14] <kokey> what kind of stuff are done with commercial launches?
[10:14] <gonzo__> I have almost finished setting up remote control for the system. So eventually I should be able to power up and select antennas when away from the house....
[10:14] <costyn> kokey: basically setting a product or model of the product or logo in front of the camera and then sending it up
[10:15] <kokey> costyn: yeah, I know about those, was just wondering what else
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[10:15] <costyn> kokey: ah, not sure :)
[10:16] <fsphil> hmm.. no word from steve?
[10:16] <kokey> just thinking of the potential in South Africa
[10:16] <kokey> I can probably get creative, and perhaps create a job for a young guy
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[10:18] <gonzo__> think steve did the manlab flights too didn't he? That was the whole setup/flight/recovery as an event. Rather than just the 'pics of product in (near)space' job
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[10:28] <fsphil> yea steve and rob did that
[10:29] <fsphil> and Upu was floating around in the background
[10:29] <daveake> he does that a lot
[10:29] <fsphil> the start of his acting career
[10:29] <fsphil> he played 'mysterious alien figure'
[10:31] <daveake> He won the Golden Filler Tube for that
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[10:33] <costyn> lol
[10:34] <x-f> :)
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[10:42] <g7ogxchris> is there XABEN TODAY?
[10:43] <Geoff-G8DHE> Perhaps he didn't put his clocks forward ;-)
[10:44] <Maxell> launch?
[10:44] <Maxell> What time?
[10:45] <Geoff-G8DHE> XABEN 03/04/2013 1100 BST Cambridge UK 434.250Mhz Callsign XABEN1 600Hz Shift 50 7N1
[10:46] <g7ogxchris> tks geoff
[10:46] <Maxell> y
[10:48] <Geoff-G8DHE> Are just read his forum posting "expect to have a fight tomorrow (with Thursday as a backup)" he's fighting not flighting ;-)
[10:48] <costyn> Geoff-G8DHE: haha
[10:48] <Maxell> Will he take a gps transmitter with him?
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[11:21] <cuddykid> aiming for something like this tomorrow: 16ba561bcdbca2fef9f6a196f6542
[11:21] <cuddykid> oops
[11:21] <cuddykid> http://habhub.org/predict/#!/uuid=0139827575416ba561bcdbca2fef9f6a196f6542
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[11:23] <costyn> nice & compact
[11:23] <cuddykid> yep :)
[11:23] <cuddykid> lots of stirks required I think
[11:23] Nick change: daveake_ -> daveake
[11:24] <cuddykid> if I get it wrong at it ascends slowly it wizzes off to the East
[11:24] <costyn> even at 4 m/s it doesnt' seem to go that far east?
[11:25] <costyn> or do mean if it floats?
[11:25] <cuddykid> http://habhub.org/predict/#!/uuid=4cb959dddb43c659753844e246e33579d3406bbd
[11:26] <costyn> ah yea I forgot to adjust the burst altitude
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[11:39] <HixWork> my hourly seems to have gone awry, when you click on a point the flightpath no longer comes up :/ anyone else had this?
[11:41] <fsphil> mine is ok
[11:41] <cuddykid> mine's fine
[11:42] <fsphil> wish I hadn't looked. it's getting worse
[11:42] <cuddykid> does seem to have loaded the 06z data earlier than usual today - doesn't normally appear until mid-afternoon
[11:42] <cuddykid> fsphil: link?!
[11:42] <fsphil> http://hourly.sanslogic.co.uk/
[11:43] <fsphil> we seem to be expecting a hurricane for next weekend :)
[11:43] <cuddykid> ah yeah, not great
[11:43] <UpuWork> Anyone heard from Steve ?
[11:43] <cuddykid> mine is similar: http://panther.acudworth.co.uk/hourly
[11:43] <cuddykid> only via email this morning
[11:43] <fsphil> not a peep UpuWork
[11:43] <cuddykid> nothing about launch though
[11:44] <fsphil> who invented predictors. depressing things :)
[11:47] <HixWork> do you think if I force the cron it may get rid of the issue?
[11:48] <mfa298> HixWork: probably depends on what aspect isn't working but it's re-running is probably worth a shot
[11:49] <HixWork> it's the individual flight profiles mfa298
[11:49] <HixWork> I'll give it a kick up the back end, see what happens
[11:49] <chris_99> you guys heard of JP Aerospace? and their X shaped balloon in near space thing
[11:52] <Geoff-G8DHE> Just spotted Steve's chase car has appeared on the tracker ...
[11:53] <mfa298> I seem to recall that several of his recent flights stating 11am have been nearer a 1pm launch
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[11:58] <gonzo__> I can possible get some RX here. But will be only the omni and with a huge length of coax. No LNA power at the mo
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[12:01] <costyn> balloon just appeared as well
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[12:02] <daveake> <LL_mode> damn left my receiver etc at home </LL_mode>
[12:07] <x-f> xD
[12:08] <HixWork> Hmm, that prediction is showing it coming down a bit neat STN departure route
[12:09] <cuddykid> looks like it's off
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[12:10] <daveake> That's mainly Ryan Air who cares? ;)
[12:11] <number10> indeed - the sooner they close STN the better for HAB and all
[12:11] <eroomde> stn?
[12:11] <number10> stansted
[12:11] <eroomde> or sorry
[12:11] <eroomde> caught up
[12:12] <costyn> HixWork: that the flightpath doesnt' come up when you click an item, is what happens to me when I still have the page up but the vm is already switched off again
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[12:13] <HixWork> hmm weid costyn 2 mins before you said that my server joined irc
[12:14] <costyn> wut... your server joined IRC?
[12:14] <HixWork> though SSH into VM is still live
[12:15] <HixWork> everything around me is glitching lately, phone, car, server
[12:15] <HixWork> think i'm radioactive all of a sudden
[12:16] <costyn> HixWork: more likely than you think :P
[12:16] <HixWork> I'm going to try and neutralise it with soup and bread
[12:19] <G0DJA> Is XABEN1 called XABEN44 in FLDigi configs?
[12:20] <fsphil> the flight is xaben44, the payload is xaben1
[12:20] <cuddykid> anyone know what XABEN stands for?
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[12:20] <G0DJA> Thanks fsphil
[12:21] <G0DJA> Not hearing it yet
[12:21] <costyn> only number10 is in range it looks like
[12:21] <fsphil> it's not launched yet
[12:22] <griffonbot> @adamcudworth: realised that the automatic sleeping whilst running HABHUB iOS app is annoying - toggle coming to disable sleeping in v2.1 #ukhas [http://twitter.com/adamcudworth/status/319424585705603073]
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[12:25] <number10> I am not in a good position here just have a 1/4 hanging out the window costyn
[12:25] <number10> but I do have my set-up at home also
[12:25] <costyn> ah
[12:25] <G0DJA> cuddykid need to ask Steve (G8KHW) that question - not explained on any of his photo pages
[12:28] <cuddykid> woo, DM has sorted my permission for tomorrow according to notam map :)
[12:28] <number10> costyn: no laughing at my call sign ;)
[12:28] <costyn> geez
[12:29] <costyn> I was about to make a quip about MomDB
[12:29] <number10> :)
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[12:36] <G0DJA> Looks like I'll miss the launch as I have to go and collect Kate
[12:39] <cuddykid> someone has got a huge window on a notam (balloon launch) - 30th march -> 28th april. That must have been hell to get
[12:39] <LazyLeopard> Balloon up...
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[12:40] <G0DJA> Gone
[12:41] <G0DJA> Shift a bit wider than advertised
[12:42] <lz1dev> no money back
[12:42] <Brace> daft question, but I can just watch the flight in closeish to realtime on spacenear.us/tracker/ right?
[12:43] <fsphil> cuddykid: I get month-long notams
[12:43] <G0DJA> As long as someone is decoding Brace - yes
[12:43] <cuddykid> oh wow fsphil - is it hard to get them?
[12:43] <costyn> Brace yep
[12:43] <fsphil> cuddykid: random. I've gotten them within a few weeks, and sometimes takes many months
[12:44] <Brace> G0DJA: ok, cool
[12:44] <UpuWork> dial ?
[12:44] <fsphil> I don't think DM likes doing them, but better than me making requests every week :)
[12:44] <number10> .248
[12:45] <fsphil> must get the fcd going
[12:45] <UpuWork> got it
[12:45] <fsphil> are you using the beta code UpuWork?
[12:46] <UpuWork> yes
[12:46] <UpuWork> lovely strong signal
[12:47] <daveake> If only I had a portable tracking station ...
[12:47] <daveake> ... with me :p
[12:48] <fsphil> see the thing about portable tracking stations
[12:48] <fsphil> is they're portable
[12:48] <LazyLeopard> ...and get left behind.
[12:48] <fsphil> exactly
[12:48] <daveake> Need more receivers :)
[12:48] <fsphil> it's a larger version of a telly remote. it'll end up down the back of the jeep
[12:49] <daveake> Actually I brought the wrong car too - the others are set up
[12:49] <daveake> hah
[12:49] <number10> bad planning daveake
[12:49] <number10> ;)
[12:49] <daveake> I know
[12:49] Nick change: UpuWork -> Upu_M0UPU
[12:50] Nick change: number10 -> number10_M0MDB
[12:52] <Geoff-G8DHE> Ah ha just getting it partial decodes
[12:53] <fsphil> hmpf. gqrx won't start
[12:54] <g7ogxchris> got it
[12:54] <g7ogxchris> up to report #234 allready??????
[12:55] <fsphil> probably running on the ground for a while
[12:55] <g7ogxchris> tks phil..yes just thought of that! blowing a bar steward down here
[12:55] <fsphil> it's good practice to switch on the payload before filling the balloon
[12:56] <g7ogxchris> balloon all fat and ready then payload probs
[12:56] <HixWork> is it bang on 434.250?
[12:57] <g7ogxchris> no tad below
[12:57] <HixWork> I don't hold out much hope from the office but I always try
[12:57] <fsphil> I'm not expecting much here unless it gets above 30km
[12:58] <HixWork> I'm not expecting much unless it gets <5km from me :)
[12:59] <fsphil> ./gqrx
[12:59] <fsphil> er no, this isn't my shell
[12:59] <g7ogxchris> 434.248
[12:59] <Upu_M0UPU> craag about HABRotate
[12:59] <Upu_M0UPU> working fine :)
[12:59] <craag> Upu_M0UPU: Good to hear.
[13:00] <craag> Apart from the flights not turning up when there were lots, was there anything else that needed/would be good to be fixed?
[13:00] <Upu_M0UPU> no looks good I just watched it get to 5' out and it corrected
[13:01] <Upu_M0UPU> thanks for taking the time to write it
[13:01] <craag> Nice, are you running it 2-axis yet?
[13:01] <mattbrejza> tablets decoding nicely :)
[13:03] <g7ogxchris> mattbreza what version is the latest pse?
[13:04] <fsphil> this is a pretty noisy part of the band
[13:05] <mattbrejza> ive got a version that im testing that after today will be put on the play store
[13:06] <Geoff-G8DHE> Flight path here http://360.g8dhe.net/hab_flights/XABEN44/
[13:06] <mattbrejza> but it should work somewhat better
[13:06] <Maxell> 434.250 MHz right?
[13:06] <HixWork> apparently .248
[13:07] <Maxell> hehe
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[13:08] <Maxell> Still kinda empty here
[13:08] <gonzo__> seeing signals, but too weak for a good decode
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[13:08] <fsphil> still a while to go for here
[13:08] <kokey> is the wind strong or something?
[13:09] <HixWork> whats your app caqlle din play mattbrejza ?
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[13:09] <mattbrejza> HixWork: hab modem and tracker
[13:09] <HixWork> ok ta, I'll download it
[13:09] <fsphil> afternoon RocketBoy
[13:10] <mattbrejza> there'll be an update this evening though
[13:10] <Darkside> http://i.imgur.com/ndPwpq8.jpg
[13:10] <daveake> Hi Steve. A nice 5m/s and current prediction north of Colchester
[13:10] <Darkside> awwww yeah
[13:10] <fsphil> Darkside: you visit Mt.Doom?
[13:10] <Darkside> lol
[13:11] <fsphil> hope you remembered to cast the ring into the fire
[13:11] <fsphil> seriously though, great pic
[13:11] <Darkside> my uncle took me on a tour of the BOS at the lcal steelworks
[13:11] <Darkside> http://en.wikipedia.org/wiki/Basic_oxygen_steelmaking
[13:11] <Darkside> local*
[13:20] <HixWork> just went outside with the laptop and dongle, not even a peep
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[13:21] <HixWork> and me head is now numb, that wind is vicious
[13:21] <HixWork> *my
[13:22] <gonzo__> or is it viscous?
[13:22] <HixWork> not by the rate it is flowing at :)
[13:24] <mattbrejza> ive packaged the decoder thats in the app into a desktop version if anyone wanted to try it
[13:24] <mattbrejza> http://users.ecs.soton.ac.uk/mfb2g09/decoder/decoder.jar
[13:24] <mattbrejza> (is somewhat beta)
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[13:27] <craag> oo
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[13:28] <mattbrejza> also if you change your callsign you have to restart it for it to show up changed (also lat/long do nothing0
[13:29] Action: craag has a local QRM burst, precisely every 10s and corrupting nearly every string :(
[13:29] <mfa298> mattbrejza: well it loads, Now to see if I can get audio from craag's websdr into it to see if it works
[13:30] <mattbrejza> mfa298: loading is a good start, it doesnt even do that on the astra rdc pc
[13:30] <craag> It took a good 40s to load for the first time here.
[13:30] <mfa298> this is on Win8Pro
[13:30] <craag> And doesn't seem to work with VAC input..
[13:31] <HixWork> loads quickly on Win7 64
[13:31] <mfa298> I'm trying it via VAC as well, I can select it but not seeing anything in the waterfall
[13:31] <mattbrejza> hmm, ive been using with stereo mix
[13:31] <HixWork> but can't select audio input device
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[13:32] <mattbrejza> yea it doesnt work with mic for me
[13:32] <mattbrejza> clearly well tested
[13:32] <HixWork> :)
[13:32] <mfa298> now doing FF -> VAC(L1) -> Audio Repeater -> speakers -> Microphone -> JAR and getting some decodes
[13:33] <craag> I think it's decoding..
[13:33] <craag> Does it appear in the top box if it's a successful decode?
[13:33] <mattbrejza> yea
[13:33] <craag> ah cool, working well then!
[13:34] <mfa298> not sure I've had a successful decode but it's getting data!
[13:34] <PE2G> DX 470 km, sonde's strong signal drowns out local interference. Nice.
[13:34] <mattbrejza> it can take a bit longer to lock on than dlfldigi
[13:35] <HixWork> heh, if i could launch its a bit of coast hopping for the next week http://flight-predictor.widerimage.co.uk/
[13:35] <HixWork> and the cron fixed it mfa298
[13:36] <craag> mattbrejza: Seems to cope a bit better than dl-fldigi with this qrm.
[13:36] <mattbrejza> :D
[13:36] <mfa298> mattbrejza: might take longer but for mobile tracking the automated tracking of the signals should be useful.
[13:36] <mfa298> only have to worry about keeping the radio tuned and leave the app to do it's thing
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[13:37] <PE2G> http://gyazo.com/9d34f465991a03a12d05bc8799cbd500
[13:37] <costyn> PE2G: nice, signal is wavering a lot it seems like
[13:38] <Maxell> same here
[13:38] <Maxell> hard to decode :S
[13:38] <PE2G> costyn: but no need for manual adjustment
[13:39] <costyn> PE2G: we're not getting any decodes with our rtl-sdr
[13:40] <craag> mattbrejza: Also sooo much better cpu usage. 28% for dl-fldigi, 6% for the java app.
[13:40] <mattbrejza> and its java :P
[13:40] <craag> Yeah, amazing..
[13:40] <mattbrejza> so who will win, fldig -i (m6vxo) or my app (in need of a name) - (matt-desk)
[13:41] <fsphil> got it
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[13:43] <fsphil> nice, got a string already
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[13:43] <daveake> new decoder?
[13:43] <mattbrejza> its the one in my app daveake , but now in a pc friendly jar
[13:44] <fsphil> daveake: yep
[13:44] <daveake> ah nice
[13:44] <HixWork> daveake, http://users.ecs.soton.ac.uk/mfb2g09/decoder/decoder.jar
[13:44] <daveake> cheers
[13:44] <mattbrejza> its a bit on the beta side
[13:44] <daveake> looking good though it seems
[13:45] <mattbrejza> the decoder works well, but the displaying it on the screen is a bit more so
[13:45] <mattbrejza> fsphil: how is kahn looking?
[13:45] <craag> Could definitely do with some green-line-ness.
[13:45] <mattbrejza> yea it doesnt tell you if valid of not
[13:46] <mattbrejza> after spending ages on the android one ive got a bit tired of java
[13:46] <mfa298> I'll hopefully be able to do a better test of the jar version with tomorrows flight (assuming I can route audio from sdr# into it without having to include the speakers -> mic step)
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[13:47] <craag> I think fsphil mentioned last night that the kahn demod was looking quite good with low snr stuff.
[13:47] <mattbrejza> does your souncard have stereo mix?
[13:47] <fsphil> running all three atm
[13:47] <fsphil> old, kahn and atc
[13:47] <craag> Could we run the two demods side-by-side in the same program??
[13:47] <fsphil> so far about even
[13:48] <mattbrejza> i thought old and atc were the same?
[13:49] <mattbrejza> btw i went thoguh a period of recording flights for the purpose of testing my decoder if you wanted fsphil
[13:49] <mfa298> mattbrejza: if that was aimed at me I don't seem to have a stereo mix option (win8), I've got VAC so I'm hoping I can persaude sdr# and your app to play with that.
[13:49] <mattbrejza> mfa298: my win8 has stereo mix. if a audio device doesnt show up blame java not me :P
[13:49] <Darkside> https://www.facebook.com/media/set/?set=a.10200779151938172.1073741828.1144042127&type=1&l=0269eae364
[13:50] <mattbrejza> also it only checks for audio devices on startup
[13:50] <craag> Stereo mix depends on the hardware driver
[13:50] <craag> My win7 netbook has it, my win7 desktop doesnt
[13:50] <mfa298> mattbrejza: I'd had a read about stereo mix a while ago and it looked like since vista it was something the driver manufactures could choose to disable
[13:50] <fsphil> weirdly the old modem is decoding some of these lines and the new ones don't
[13:51] <fsphil> I wonder if the new ones are just better at the higher baud rates
[13:51] <mattbrejza> i reckon its quite simple to use the rtls with the decoder, so perhaps none of these issues in the future
[13:52] <mfa298> what I really want now is an application that allows me to choose which input channel on a soundcard the audio is on (but that probably needs and ASIO driver on windows)
[13:53] <mfa298> with all the radios I could connect up I'd prefer to use the single device that has 6 analogue ins rather than lots of cheap usb cards
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[13:54] <g7ogxchris> NNNNNN
[13:54] <fsphil> your N key works
[13:54] <fsphil> coNgratulations
[13:55] <eroomde> unless it was his M key
[13:55] <fsphil> oh good point
[13:55] <eroomde> in which case, your M key does not work
[13:55] <mfa298> so does his shift and or caps-lock
[13:55] <g7ogxchris> MATThave had sound update to samsung nexus and now HABTracker does not read sigs
[13:55] <eroomde> gotta love computers
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[13:56] <g7ogxchris> tracking sigs seen on tablet baud 50 but only gobbledegook
[13:56] <fsphil> isn't that illegal?
[13:56] <mattbrejza> not recently g7ogxchris
[13:56] <g7ogxchris> not amongst consenting adults
[13:57] <mattbrejza> i have a new version you can try that decodes much better http://users.ecs.soton.ac.uk/mfb2g09/decoder/habmodem.apk
[13:57] <HixWork> computers have to rely on human instructions fsphil
[13:57] <HixWork> therefore there is no consent needed
[13:57] <eroomde> mattbrejza: have you found android dev fun?
[13:57] <eroomde> (apart from the java)
[13:57] <eroomde> genuine Q
[13:58] <mattbrejza> actually is been alright i suppose
[13:58] <mattbrejza> java is quite nice as a programming language in a way
[13:58] <HixWork> am I correct in that now you cna develop android in C too?
[13:58] <eroomde> i'd like to know which way that is :)
[13:58] <mattbrejza> debugging can be annoying as is its so much slower
[13:58] <eroomde> they have a native development kit
[13:58] <mattbrejza> so the decoder cant run in real time
[13:58] <fsphil> you can use C on android but doing UI stuff is nasty
[13:59] <eroomde> that lets you do C and CPP
[13:59] <HixWork> ah oki
[13:59] <fsphil> you basically still need a Java UI
[13:59] <eroomde> but it's not really a first class citizen
[13:59] <fsphil> but you can write libraries in C
[13:59] <mattbrejza> yea the ui is still annoying in java until you get used to it
[13:59] <eroomde> they say it's recommended for cpu intensive, fairly fixed mem requirement stuff
[13:59] <HixWork> is memory management tricky for phones?
[13:59] <eroomde> like digital signal processing
[14:00] <eroomde> I might give it a go. I have a preposterously powerful mobile phone afterall
[14:00] <eroomde> a quad core 1.4GHz cpu
[14:00] <HixWork> my Desire HD seems to be getting old and slow lately
[14:00] <eroomde> that's bonkers
[14:01] <eroomde> for DSP it'd be monstrous
[14:01] <mattbrejza> im not so motivated to write the decoder in c, ive done it once and dont really want to do it again, especially as i have no idea what im doing
[14:01] <fsphil> you got further with it than I did
[14:01] <eroomde> http://bit.ly/TgNTJh
[14:01] <fsphil> all three modems struggling now
[14:02] <mattbrejza> pretty much eroomde
[14:02] <eroomde> i feel that way a lot
[14:02] <HixWork> is that your keyboard again eroomde
[14:02] <g7ogxchris> tks matt will download
[14:02] <HixWork> I'm permanently that in C
[14:02] <eroomde> HixWork: today I am on the unicomp customizer
[14:02] <eroomde> which is a modern clone of the ibm model M
[14:03] <eroomde> for pleasing clickiness
[14:03] <PE2G> Great reception from NL, the best since months
[14:03] <mattbrejza> if someone wanted to write a program to replace flidigi in c then that would be a bit different, but trying to hack c into the app by myself, no thanks
[14:03] <HixWork> new keyboards generally suck
[14:03] <eroomde> i love this one
[14:04] <HixWork> the dell thing I have at work is attrocious
[14:04] <eroomde> new but a copy of an old one
[14:04] <HixWork> yeah
[14:04] <HixWork> in keyboards, old is good
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[14:04] <HixWork> Thinkpads have nice keyboards
[14:04] <eroomde> i've not tried the new thinkpads
[14:04] <eroomde> but i loved the old ones
[14:04] <HixWork> and I have an old ps2 microsoft ergonomic one, stashed at my parents, that's a dream to use
[14:05] <eroomde> and i loved the LED rather than backlit keys so you could read paper things with it aswell as the keyboard
[14:05] <fsphil> I still love my old thinkpad. it's so old now it has wrinkles
[14:05] <eroomde> and i loved the latches
[14:05] <HixWork> have they changed eroomde ?
[14:05] <eroomde> and i loved the screen aspect ration designed for getting work done
[14:05] <fsphil> 4:3 :)
[14:05] <eroomde> HixWork: yes
[14:05] <eroomde> they've gone to shit
[14:05] <Darkside> http://pipe2.darklomax.org/pics/2013-04-03_BOS_Tour/
[14:05] <HixWork> fsphil, http://edgeuk.net/
[14:06] <HixWork> he does ex corporate ones dead cheap, motsly with warranties still on me
[14:06] <mattbrejza> burst
[14:06] <HixWork> eroomde, why do THEY have to wreck everything that is good
[14:06] <eroomde> i think they've got rid of the rubbersied black skin too
[14:06] <eroomde> for just plastic
[14:07] <HixWork> oh god. What am I going to use in the future
[14:07] <eroomde> i think if i had to get a new laptop now it would still be a mac
[14:07] <fsphil> nooooooooooooooOOOOOOOOOOOOOOOOO!!!!!!!!!11
[14:07] <eroomde> the 13" retina macbook pro
[14:07] <HixWork> i looked at macbook pro but price is obscene
[14:07] <HixWork> for the spec
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[14:08] <eroomde> they're brought them down a lot in the last few months
[14:08] <eroomde> the 13" anyway
[14:08] <eroomde> and the screen is very, very good
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[14:08] <eroomde> be it heavy graphics or just crisp fonts in the terminal. it really is a happy difference that doesn't really show up on spec sheets
[14:08] <HixWork> I paid £260 for my X201 with 16 months warranty on it, the battery still alsts >3hhrs too
[14:08] <fsphil> xaben just a squiggly line on the waterfall now
[14:08] <eroomde> + it has 2x minidisplayport/thunderbolt connectors, so you can drive two large displays with it
[14:09] <eroomde> which is a big plus for me as that's what I like having.
[14:09] <HixWork> can you not get expresscard graphics cards now?
[14:09] <eroomde> no idea
[14:09] <PE2G> fsphil: yes, but decoding is still fine
[14:09] <Geoff-G8DHE> Stability has been good on the Tx during the whole flight
[14:09] <fsphil> not here PE2G
[14:10] <fsphil> it stopped decoding at burst
[14:10] <PE2G> Great flight, receptionwise
[14:10] <eroomde> also it's got a fullspeed i5 which is nice (though would happily wait for quad core of something bigger) and a 256GB ssd. between those things, i'd be very happy
[14:10] <joph> wow, the elitebook revolve looks amazing
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[14:12] <fsphil> hah, payload stats. old modem decoded 26 strings, kahn did 20, and atc managed 18
[14:12] <joph> fuck, these bastard dropped the trackpoint
[14:12] <joph> stupid idiots
[14:12] <eroomde> the asus zenbook prime looked nice. and very comparable spec-wise to the rMBP13
[14:12] <joph> eroomde, also missing trackpoint
[14:12] <eroomde> same price too
[14:13] <fsphil> this might land on steves house
[14:13] <PE2G> fsphil: you regained signal?
[14:13] <fsphil> PE2G: nope, it's below my horizon now
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[14:14] <PE2G> 0.5 elevation here
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[14:17] <HixWork> there's a nice little pub right near the L.Z Geoff, the guy who runs it is a grerat guy. Food is pretty good too, though not sure if they do fish and chips
[14:17] <HixWork> http://goo.gl/2V2bs
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[14:22] <mfa298> craag: quick test with SDR#, VAC and matt's app. source of a VAC doesn't seem to work, but if you set that VAC as the default recording device and the jar to primary recording device i think it's getting valid data (my audio input isn't rtty though so I can't test fully)
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[14:23] <PE2G> I lost it at alt 9490 m, dx 404 km
[14:24] <PE2G> http://gyazo.com/8d73637c79dab7c24855daac312ed239
[14:25] <craag> mfa298: Ah ok. Working great with stereo mix here.
[14:27] <craag> I was listening to my websdr, with VAC as the primary output device before.
[14:27] <craag> It's probably samplerate mismatch with a VAC direct connection or something similar.
[14:34] Nick change: daveake_ -> daveake
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[14:39] <Geoff-G8DHE> Good chance they will see this land ..
[14:40] <Brace> if the weather is like it is here, should get some nice pics also
[14:41] <Upu_M0UPU> this is going to be an easy recovery
[14:41] <Upu_M0UPU> https://maps.google.co.uk/maps?q=52.01516,0.46995&hl=en&ll=52.010052,0.45708&spn=0.021106,0.038581&sll=53.741446,-1.686054&sspn=0.64895,1.234589&t=h&z=15&layer=c&cbll=52.010052,0.45708&panoid=K3D-5SE8v1pE96OYCwN9GA&cbp=12,37.34,,0,17.92
[14:42] <Geoff-G8DHE> Its down
[14:42] Action: fsphil scans for powerlines
[14:42] <fsphil> clear!
[14:42] <mattbrejza> fldigi beat my java app by a few sentences ¬.¬
[14:43] <mattbrejza> 142 v 135
[14:43] <LazyLeopard> Ah! Wondered why it had just gone quiet... ;)
[14:43] <fsphil> old fldigi beat new fldigi too
[14:43] <mfa298> mattbrejza: that's not bad
[14:43] <mattbrejza> however if we divide through by cpu usge...
[14:43] <mattbrejza> for no apparent reason
[14:43] <mfa298> lol
[14:43] <fsphil> new location
[14:43] <number10> my home station is still receiving
[14:44] <fsphil> seems to be in or near a hedge
[14:44] <Brace> fsphil: looks like it
[14:44] <mfa298> also could you claim that those 7 sentences were whilst your app was locking onto the signal - which doing that manually in dl-fldigi could have taken even longer
[14:44] <Brace> they're moving the car to the edge of that field it seems
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[14:45] <mattbrejza> they were neck and neck at one point
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[14:46] <mattbrejza> also it is possible not all strings were uploaded by my app, it only retries 3 times, in comparision to fldigis' 30 times or so
[14:46] <fsphil> fldigi retries?
[14:47] <mattbrejza> if thers a document conflict in habitat
[14:47] <fsphil> ah yea
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[14:58] <gonzo__> looks like steve is tree-bound there
[14:59] <Brace> gonzo__: lets hope he's got a chainsaw!
[15:01] <mattbrejza> if the map is accurate looks like he could have just missd
[15:09] <gonzo__> the OS maps say 110mtrs alt at that point
[15:09] <gonzo__> so you could be right
[15:10] <gonzo__> looks like he's got it
[15:11] <Brace> does rather
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[15:19] <Upu_M0UPU> I'd say thats recovered
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[15:19] <cuddykid> back from my travels: 1 helium canister, 1 go pro 3, plenty of gaffer tape and a usb car charger :D
[15:19] <Upu_M0UPU> launching next week cuddykid ?
[15:19] <cuddykid> Upu_M0UPU: tomorrow
[15:20] <Upu_M0UPU> oh ok cool
[15:20] <Upu_M0UPU> Might be an AVA floater on Sat
[15:20] <cuddykid> Upu_M0UPU: going to fly the 2 pcbs :) 1 with 1/4 wave and 1 with stub
[15:21] <Upu_M0UPU> stub is weaker at range
[15:21] <Upu_M0UPU> but fine as backup
[15:22] <fsphil> latex or foil floater?
[15:22] <Upu_M0UPU> latex repeat of the transeurope with new code and will be flying MAX7C
[15:22] <fsphil> moar insulation?
[15:22] <Geoff-G8DHE> Object Movie of the flight http://360.g8dhe.net/hab_flights/XABEN44/XABEN1-44.html
[15:22] <Upu_M0UPU> yep
[15:23] <mattbrejza> aprs?
[15:23] <Upu_M0UPU> no
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[15:24] <mattbrejza> :(
[15:24] <Upu_M0UPU> APRS geofencing in RTTY
[15:24] <Upu_M0UPU> code and GPS test
[15:24] <Geoff-G8DHE> Wow how do you charge a car from USB ?
[15:24] <mattbrejza> slowly
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[15:28] <Geoff-G8DHE> Wow Google Street View must have taken a picture as it landed on it ... http://goo.gl/maps/XCq0Q
[15:29] <fsphil> PINK
[15:29] <fsphil> this is a xaben launch, they're a real colour
[15:31] <griffonbot> Received email: Anthony Stirk "[UKHAS] AVA Launch Saturday 6th"
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[15:37] Nick change: Upu_M0UPU -> UpuWork
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[15:50] <chrisstubbs> Hi all
[15:52] <costyn> is ASTRA on the tracker a test flight?
[15:53] <UpuWork> Astra isn't on the tracker
[15:53] <costyn> mattbrejza: yours?
[15:53] <mattbrejza> ghost payload
[15:53] <mattbrejza> its gone now
[15:53] <costyn> ah, gone now
[15:53] <mattbrejza> i forgot to offline
[15:53] <costyn> glitch in the matrix
[15:53] <costyn> ;)
[16:21] <chrisstubbs> for a dual payload flight, does this sound about right:
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[16:21] <chrisstubbs> balloon - 10m string - parachute - 5m string - payload1 - 5m string - payload2
[16:21] <chrisstubbs> or should i go longer?
[16:22] <arko> morning
[16:22] <number10> morning
[16:22] <chrisstubbs> hey arko
[16:22] <arko> supp
[16:23] <chrisstubbs> just checking the maths a few times before o order helium tommorow :)
[16:23] <chrisstubbs> figuring out how much string to use
[16:25] <Babs> Chrisstubbs. (At the risk of being shot down) I would use more string between your payloads and parachute than your balloon and parachute. Rationale being that if the balloon fails to shred completely and hangs down below the parachute as a result, it could interfere with your payloads
[16:25] <Babs> as in get in front of camera lenses etc.
[16:25] <chrisstubbs> ah ok thanks :)
[16:26] <Babs> That being said, with only one launch under by belt, its not as if I have a huge dataset to compare by, but it seemed logical when I was hooking mine up
[16:26] <Babs> to make payload to parachute line longer than balloon to parachute line
[16:27] <chrisstubbs> whfor reference, about what lengths did you use?
[16:27] <chrisstubbs> in the range of 10m?
[16:29] <mfa298> from what I remember of other peoples launches they've gone for as much string as possible
[16:29] <chrisstubbs> how long is a peice of string?
[16:29] <chrisstubbs> ;)
[16:30] <Babs> I think I had 10 below, 5 above (other thought was that you want the burst fragments to be as clear as possible from the parachute when it shreds to limit the possibility of it tangling, but thats a weaker argument than the relative lengths one)
[16:31] <arko> i used 10m on everything
[16:31] <chrisstubbs> ok awesome thanks
[16:31] <chrisstubbs> yeah 10 for each seems reasonable
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[16:44] <cuddykid> excellent, both trackers working :)
[16:49] <chrisstubbs> whoo
[16:51] <number10> its going to be windy tomorrow cuddykid
[16:51] <cuddykid> yeah :( going to be awful filling
[16:52] <chrisstubbs> and looks like its only going to get windier. stupid weather!
[16:54] <number10> weekend looks a little calmer
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[16:57] <cuddykid> backup tracker payload weighs in at 180g
[16:58] <chrisstubbs> cuddykid, lots of batteries?
[16:58] <cuddykid> 3 AAs
[16:58] <cuddykid> quite a big sytrofoam box though - reusing old payload box
[16:59] <chrisstubbs> ah was going to ask whats pushing the weight up
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[16:59] <cuddykid> yeah, styrofoam actually weighs more than I thought
[17:00] <chrisstubbs> hah
[17:00] <chrisstubbs> what the... http://ukhas.org.uk/profile_numberskleyfmch
[17:01] <cuddykid> trolls
[17:01] <chrisstubbs> theres another one about subliminal messages too
[17:01] <chrisstubbs> more like pointless bots
[17:01] <cuddykid> yeah, I've never understood why they do it
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[17:07] <chrisstubbs> 2 days until my first launch window and my application still hasnt been approved
[17:07] <chrisstubbs> despite submitting it 6 weeks ago and calling them each week to check progress
[17:07] <cuddykid> only just got my permission through (10mins ago) for tomorrow
[17:07] <cuddykid> it will be done don't worry :)
[17:08] <cuddykid> he has a habit of doing it last minute
[17:08] <chrisstubbs> :P
[17:08] <cuddykid> check the day before on the notam map, if you see it, he's working on it, if not, give him a bell
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[17:19] <griffonbot> Received email: Matthew Brejza "[UKHAS] Re: Android modem and tracking app"
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[17:27] <lz1dev> ezcap donggle works pretty well for live TV with xbmc
[17:28] <craag> Cool. I have yet to use any of mine for watching tv :P
[17:28] <craag> Unless dsstv counts!
[17:29] <lz1dev> it struggles when switchin channels
[17:29] <lz1dev> but, you can record your shows, on multiple channels
[17:29] <lz1dev> even if they overlap
[17:33] <x-f> those channels have to be on the same frequency then, i guess
[17:34] <lz1dev> i figure it switches between the frequencies
[17:35] <x-f> i mean, when recording
[17:35] <lz1dev> yeah
[17:36] <lz1dev> every channel has its on frequency
[17:36] <x-f> on DVB-T there are a few channels on the same frequency
[17:36] <lz1dev> oh
[17:36] <lz1dev> hmm
[17:36] <x-f> mhm
[17:38] <costyn> lz1dev: I got mine today, do you need additional software/drivers to interface xbcm and dvb-t stick?
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[17:41] <lz1dev> costyn: i'm using xbmc w/ nextpvr plugin + nextpvr
[17:41] <lz1dev> before that i installed the drivers from the mini CD
[17:42] <costyn> lz1dev: ok thx for the info
[17:42] <lz1dev> you need to configure the nextpvr server, and the plugin to connect
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[17:43] <lz1dev> if you turn on upnp and get upnplay and yatse on your android phone
[17:43] <lz1dev> you can control xmbc, or stream to it from your phone
[17:44] <lz1dev> xbmc*
[17:45] <costyn> not really interested in the full featured dvb-t experience :)
[17:45] <costyn> just want to play with it for a bit
[17:45] <lz1dev> heh
[17:45] <lz1dev> i just wanted to stream my playlist to stereo
[17:46] <lz1dev> ended up with xmbc :)
[17:46] <lz1dev> not going back
[17:46] <costyn> ah
[17:46] <costyn> I have appletv... I can stream from most of my iDevices to it
[17:46] <costyn> works nicely
[17:46] <costyn> including streaming video
[17:48] <mfa298> reading back 10 mins, I've not tried the rtl-sdr dongle for tv, but I did plug a different usb tv dongle into a pi running rasbmc and it seemed to work.
[17:48] <lz1dev> i've got an old desktop hooked to the TV
[17:49] <mfa298> I even found an android app that allows me to stream from the pi tv card to an android tablet so I can watch live tv on the tablet/
[17:50] <costyn> mfa298: sounds nifty
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[17:50] <fsphil> mumudv
[17:50] <fsphil> mumudvb is nice, can stream an entire dvb mux
[17:51] <costyn> looks cool
[17:51] <jcoxon> evening all
[17:51] <fsphil> howdy jcoxon
[17:53] <Elwell> is there an osx app that can use those ez-cap dongles to play TV? vlc dvb://voodoo?
[17:54] <jcoxon> ping eroomde
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[17:55] <eroomde> pong jcoxon
[17:55] <fsphil> vlc should assuming there is an osx driver for it Elwell
[17:55] <jcoxon> got a slightly off topic question for you
[17:55] <jcoxon> sort of
[17:55] <jcoxon> if i've got a toy helicopter
[17:55] <jcoxon> what sensors would i need to get it to hover?
[17:55] <jcoxon> its got the mechanical gyro thingy that helps balance it
[17:56] <mfa298> off topic! this channel never goes off topic :p
[17:56] <fsphil> 5m is high altitude for such a small helicopter :)
[17:56] <jcoxon> i guess proportionally
[17:56] <jcoxon> :-p
[17:56] <fsphil> it's all relative
[17:57] <jcoxon> i assume a gyro is needed
[17:58] <jcoxon> not going to pull it off with a ultrasound distance sensor and 3axis accelerometers
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[18:03] <costyn> Elwell: been wondering the same, there doesnt seem to be much available for Mac
[18:06] <number10> https://uk.rs-online.com/web/p/processor-microcontroller-development-kits/7692091/?searchTerm=769-2091&relevancy-data=636F3D3126696E3D4931384E525353746F636B4E756D6265724D504E266C753D656E266D6D3D6D61746368616C6C26706D3D5E5C647B337D5B5C732D2F255C2E2C5D5C647B332C347D2426706F3D313426736E3D592673743D52535F53544F434B5F4E554D424552267573743D3736392D323039312677633D4E4F4E4526
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[18:13] <costyn> how much do regulators (helium/hydrogen) usually go for?
[18:13] <costyn> trying to find a matching H2 reg to the gas company's bottles
[18:15] <chrisstubbs> BOC wanted somthing crazy like £250 when i enquired
[18:15] <chrisstubbs> but you can probably get one on ebay used (but in good condition) for £50
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[18:20] <costyn> well they have some sort of weird standard here in NL which isn't used in UK or Germany apparently
[18:21] <chrisstubbs> ah, like a different thread?
[18:21] <costyn> yea something like that... NEN is a Dutch form of the German DIN
[18:23] <chrisstubbs> perhaps you could find a local welding comapny to speak to
[18:24] <costyn> yep, looking at those
[18:24] <costyn> although I found several that list them, none of them have prices listed
[18:24] <costyn> apparently if you're a businesses you don't care about that O_o
[18:25] <costyn> s/es//
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[18:28] <costyn> sent email to 2 of them, placed a wanted ad on a local listings site
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[18:33] <costyn> found 1 online for 100 euros
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[18:37] <chrisstubbs> i would give the welding companies a call
[18:37] <chrisstubbs> but not sure if they would be any less than 100
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[18:39] <costyn> this was on a welding supplies websites
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[18:49] <Lunar_Lander> hello
[18:52] <chrisstubbs> evening lunar
[18:54] <chrisstubbs> reassuring test of the GSM tracker, it went to voicemail :P
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[18:57] <cuddykid> Upu: thanks for the email - will get the payment sent tonight
[18:58] <cuddykid> finally finished all the payloads - weighs in around 1kg total for the 2
[19:01] <Upu> nps cuddykid
[19:01] <Upu> ping willdude123
[19:07] <Lunar_Lander> btw
[19:07] <Lunar_Lander> what was the solution of the XKCD challenge?
[19:07] <griffonbot> Received email: Steve Aerospace "[UKHAS] Launch announcement XABEN45 - Thurs 4th."
[19:08] <Upu> Oh lol Steve's launching too
[19:08] <chrisstubbs> its all going on now!
[19:08] <chrisstubbs> lots of tracking practice ready for next weekend
[19:09] <fsphil> yikes
[19:09] <Lunar_Lander> yikes was the codeword for XKCD?
[19:09] <RocketBoy> we try to please
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[19:10] <eroomde> quite a low burst - random or deliberate?
[19:10] <arko> whats going on this weekend?
[19:10] <RocketBoy> XABEN44 - deliberate - to stop going in the sea
[19:11] <fsphil> yea it was oddly near the predicted burst altitude :)
[19:11] <RocketBoy> expected burst 30.8Km - acutal 30.4
[19:11] <Upu> evening Steve
[19:11] <RocketBoy> yo
[19:11] <Upu> I guess I can clear todays launch from tracker?
[19:11] <fsphil> Lunar_Lander: I don't think it was revealed
[19:11] <chrisstubbs> arko i hope to be launching 13th april
[19:12] <Lunar_Lander> oh
[19:12] <arko> nice
[19:12] <Lunar_Lander> hi RocketBoy
[19:12] <RocketBoy> I gave it a few more stirks
[19:12] <Upu> lol
[19:12] <fsphil> Lunar_Lander: I didn't even get into the top 500 :)
[19:13] <Lunar_Lander> oh
[19:13] <arko> i got a box to permanently setup a fldigi staiton
[19:13] <arko> in los angeles
[19:13] <arko> doesnt help anyone other than me at the moment ;P
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[19:13] <fsphil> it'll be a great day when we can make use of it :)
[19:13] <jcoxon> arko, can it do HF?
[19:14] <arko> yes
[19:14] <arko> how hf?
[19:14] <arko> you guys should go transatlantic
[19:14] <jcoxon> well sometimes people in the states do HF flights with dl-fldigi
[19:14] <fsphil> that's the plan :)
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[19:16] <arko> oh man, let me know the frequency
[19:16] <arko> any time
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[19:35] <chrisstubbs> how are you Lunar_Lander?
[19:35] <Lunar_Lander> ah OK again
[19:36] <Lunar_Lander> had a backdrop this morning with feeling sick and stuff
[19:37] <chrisstubbs> ahh man :(
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[19:40] <Lunar_Lander> yea
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[19:47] Nick change: bertrik_ -> bertrik
[19:49] <griffonbot> Received email: Geoff Mather "Re: [UKHAS] Launch announcement XABEN45 - Thurs 4th."
[19:51] <chrisstubbs> well both payloads dont seem to interfere with eachother in any way :)
[19:52] <chrisstubbs> The TK102 tracker is still very rubbish, as expected
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[20:09] <anerDev> hey hey guys !
[20:10] <chrisstubbs> evening
[20:10] <chrisstubbs> woah those "little hotties" handwarmers worked very well in the payload
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[20:30] <Lunar_Lander> hi mclane
[20:31] chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) joined #highaltitude.
[20:40] <griffonbot> Received email: mclane "[UKHAS] Re: Android modem and tracking app"
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[20:42] <mclane> Hi Lunar_Lander
[20:42] <Lunar_Lander> how are you today?
[20:42] <mclane> running some final tests for our launch on Saturday
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[20:43] <eroomde> http://www.youtube.com/watch?v=teMU8dHLqSI
[20:43] <Lunar_Lander> cool
[20:43] <Lunar_Lander> you'll fly an 808 you said on the blog
[20:43] <arko> haha
[20:43] <arko> whhhatttt
[20:44] <mclane> yes
[20:44] <arko> that video
[20:44] <Lunar_Lander> how did you find that the GPS is jammed by it?
[20:44] <Lunar_Lander> i.e. what did the GPS do exactly
[20:44] <arko> i was expecting it turn very dark
[20:45] <eroomde> too much internet
[20:45] <mclane> In my setup, the GPS jamming seems to be tolerable. I am loosing 1-2 satellites (from 8-9 to 7-8)
[20:46] <Lunar_Lander> ah
[20:46] <Lunar_Lander> and only if the 808 is on?
[20:46] <mclane> yes
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[20:47] <mclane> I still plan to test with some shielding around the cam
[20:48] <Lunar_Lander> sounds good
[20:48] <griffonbot> @AnthonyStirk: AVA Floater on Saturday all trackers welcome #ukhas [http://twitter.com/AnthonyStirk/status/319552061068935168]
[20:51] Nick change: russss_ -> russss
[20:52] <Upu> Lunar
[20:52] <Upu> its coming your way
[20:52] <Upu> bring your kit home from university :)
[20:52] <Lunar_Lander> yea
[20:53] <arko> Upu have swing by my house
[20:53] <Upu> might not make it that far
[20:53] <arko> aww
[20:54] <arko> i'll recover it if you make it to the US ;)
[20:54] <Lunar_Lander> xD
[20:54] <Upu> via China :)
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[21:07] <chrisstubbs> 808 seems to be taking no affect on my GPS
[21:07] <fsphil> not all do
[21:08] <chrisstubbs> come flight it will probably destroy all 3 gps trackers :P
[21:08] <chrisstubbs> but thats all part of the fun
[21:08] <fsphil> tinfoil
[21:09] <chrisstubbs> yeah, loads of tin foil
[21:09] <chrisstubbs> well, a bit of tin foil
[21:09] <fsphil> it's not just for paranoid people
[21:09] <chrisstubbs> haha
[21:09] <chrisstubbs> fsphil, wanna drive the now internet controlled robot arm?
[21:10] <fsphil> you don't have to ask me twice
[21:10] <chrisstubbs> the client is in vb.net though :/
[21:10] <fsphil> there are worse options
[21:10] <chrisstubbs> pic
[21:11] <chrisstubbs> lol
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[21:12] <fsphil> is it a public web interface?
[21:12] <griffonbot> @daveake: RT @AnthonyStirk: AVA Floater on Saturday all trackers welcome #ukhas [http://twitter.com/daveake/status/319557983015149568]
[21:13] <chrisstubbs> thats what i wanted to do, but could not make head or tail of sockets in HTML5
[21:13] <mfa298> AVA floating over China might be ok, but if it reaches Korea things could get more interesting.
[21:13] <chrisstubbs> i can do it in PHP, but that dosent help without a horrific ammount of ajax
[21:13] <fsphil> mfa298: target practice
[21:13] <chrisstubbs> hah
[21:24] <bertrik> what's the expected flight path for AVA?
[21:25] <willdude123> Hi.
[21:25] <bertrik> (or too early to tell?)
[21:25] <fsphil> bertrik: long as possible
[21:25] <fsphil> oh path
[21:25] <fsphil> I read that as time
[21:25] Action: fsphil needs glasses
[21:25] <fsphil> hi will
[21:26] <Upu> hey willdude123
[21:26] <Upu> are you home tomorrow ?
[21:26] <fsphil> is there a prediction Upu?
[21:26] <Upu> yeah france germany ish
[21:26] <Upu> I'll run on Friday
[21:27] <Upu> too far away atm
[21:27] <fsphil> off to Lunar_Lander
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[21:27] <bertrik> AFAIK, the receiver at hackerspace revspace in the hague, netherlands is operational again
[21:28] <willdude123> Upu: Probably, yeah.
[21:28] <Lunar_Lander> xD
[21:28] <Upu> parcel coming
[21:28] <Upu> http://imgur.com/a/AF0bP#0
[21:28] <Upu> you need to screw the antenna back together as shown in the last picture
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[21:29] <arko> is that just an amp?
[21:29] <arko> no notch filter?
[21:29] <Upu> saw filter and amp
[21:29] <arko> nice!
[21:29] <fsphil> yea they're great
[21:29] <Upu> got a new design coming
[21:29] <arko> :)
[21:29] <arko> neato
[21:29] <fsphil> difference between my fcd decoding flights, and hearing nothing
[21:29] <arko> yeah, the front end on these things suckkkss
[21:29] <Upu> http://i.imgur.com/z3asTaH.png
[21:29] <Upu> thats the new one
[21:30] <arko> woah, your design?
[21:30] <Upu> well based on Darkside's original design
[21:30] <willdude123> Thanks Upu.
[21:30] <fsphil> woo, 869
[21:30] <arko> woah very cool
[21:30] <arko> srs biz
[21:30] <Upu> swapped the amp and the saw round
[21:30] <Upu> and made the power selectable via jumpers
[21:30] <willdude123> Upu: Three frequencies?
[21:30] <arko> is it going to be open source or available to buy?
[21:31] <bertrik> How safe/harmless w.r.t. aircraft is it to launch a pico floater? Could an aircraft engine suck it up and survive?
[21:31] <Upu> yeah you can make them for 434, 868 which is experimental at the moment
[21:31] <Upu> the 1090 is for ADS-B plane tracking
[21:31] <arko> cool
[21:31] <Upu> I can open source it
[21:31] <arko> oh, i was just wondering
[21:31] <Upu> no problems but going to sell them premade in a Hammond Enclosure
[21:31] <Upu> you're welcome to the Eagle files
[21:31] <arko> sweet
[21:32] <arko> oh cool, thanks, i'd be interested to see the schematic
[21:32] <arko> rf is magic
[21:32] <willdude123> Wow, so is it to receive plane telemetry Upu?
[21:32] <Upu> https://www.dropbox.com/s/xak8zjcwborb8eo/HAMAmp2.1.pdf
[21:32] <Upu> yep
[21:33] <Upu> you can do it with your FCD
[21:33] <Upu> with the right antenna
[21:33] <Upu> speak to jarod when he's about
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[21:34] <Upu> http://www.flightradar24.com/how-it-works
[21:34] <Upu> and http://www.flightradar24.com/increase-coverage
[21:35] <willdude123> Is the plane telemetry going to be sent down on one of the frequencies?
[21:35] <Upu> yep
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[21:36] <S_Mark> I might have joined this late, but have people seen the ios app that uses augmented reality to tell you what the plane flying is, where its from and where its going?
[21:36] <willdude123> So they're 434 and 838mhz?
[21:36] <chrisstubbs> evening S_Mark
[21:36] <Upu> willdude123 this is jarod 1/4 wave for 1090Mhz http://x264.nl/dump/ads-b-antenna-groundplane-proper.jpg
[21:37] <Upu> no ADS-B runs at 1090Mhz
[21:37] <arko> wow
[21:37] <S_Mark> Evening
[21:37] <arko> i never realized how clever saw filters are
[21:37] <arko> http://alignment.hep.brandeis.edu/Lab/Filter/SAW.jpg
[21:37] <fsphil> black magic
[21:37] <Upu> woo woo
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[21:38] <arko> i gotta say though, that's brilliant
[21:38] <fsphil> is
[21:38] <mfa298> fsphil: isn't that the standard answer for various bits of RF
[21:38] <S_Mark> chrisstubs: all preparations still going?
[21:38] <S_Mark> CAA yet?\
[21:38] <fsphil> mfa298: basically
[21:38] <chrisstubbs> been testing all the payload bits together today and its all working fine
[21:38] <chrisstubbs> still nothing from caa
[21:39] <chrisstubbs> will call them again friday, you were lucky to get yours so early
[21:39] <fsphil> gandalf was a radio amateur
[21:40] <S_Mark> Yeah got a month of NOTAMs with no issue really, guess you are closer to the main UK airports than I am?
[21:40] <chrisstubbs> yeah suppose so
[21:40] <chrisstubbs> not ordered helium just yet
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[21:41] <mfa298> fsphil: he wouldn't have made a good instructor/examiner though: You Shall Not Pass!
[21:41] <chrisstubbs> hope the wind dosent pick up much for next week, got a prediction landing in the netherlands for next wednesday
[21:41] <chrisstubbs> all going according to plan for you?
[21:42] <S_Mark> Bit far to chase is Holland lol. Yeah good so far
[21:43] <willdude123> chrisstubbs: How's the arm?
[21:43] <willdude123> :
[21:43] <willdude123> *:)
[21:44] <chrisstubbs> yeah working ok man
[21:44] <willdude123> Cool.
[21:44] <chrisstubbs> making a webinterface so it runs on linux and mac :)
[21:45] <willdude123> Been of at the NEC all day so I'm really tired.
[21:45] <willdude123> I might even go to bed soon.
[21:45] <willdude123> Upu: You launching saturday?
[21:46] <Upu> daveake is launching one of my payloads hopefully
[21:47] <bertrik> chrisstubbs: there are a few balloon chasers in the netherlands who already try to recover the daily weather balloons on a semi-regular basis
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[21:48] <daveake> willdude123 You should be able to track it nicely
[21:48] <Upu> give me a beep when you get the box
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[21:49] <willdude123> Upu: What's an ITU code?
[21:50] <Upu> well thats not actually accurate
[21:50] <willdude123> So they know where it comes from ?
[21:51] <Upu> https://github.com/Upuaut/APRS_Projects/blob/master/Data/itu-prefixes.txt
[21:51] <willdude123> If it goes abroad, will I get signal?
[21:51] <Upu> possibly yes
[21:51] <Upu> the M in my call sign indicates I come from the UK
[21:51] <Upu> fsphil is MI0VIM indicating Ireland
[21:51] <willdude123> It sucks that you can't do airbourne APRS.
[21:52] <Upu> when I transmit abroad I should prefix my call sign with the current countries call sign
[21:52] <Upu> so if I transmitted in France I would be F/M0UPU
[21:52] <Upu> well probably F/M0UPU/M
[21:52] <Upu> for mobile
[21:52] <Upu> the payload knows where it is as it has europe geofenced
[21:52] <Upu> so it can transmit the appropriate ITU prefix depending on what country its in
[21:53] <Upu> its test code for if we ever do decided to use APRS
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[21:56] <willdude123> Upu: All I'll need is a screwdrive for antenna assembly is it?
[21:56] <Upu> and a pair of pliers
[21:56] <fsphil> not doing aprs has made our flight computers all the more interesting and capiable
[21:56] <Upu> he nuts are nyloc
[21:57] <Upu> yep indeed
[21:57] <Upu> we've had to innovate a little
[21:57] <Elwell> must see if there are WA sonde launchers/chasers
[21:57] <fsphil> plus with aprs you can't keep transmitting all the time
[21:57] <fsphil> rtty gives much faster updates
[21:58] <Elwell> fsphil: yeah I also discovered that you can't do packet on a .au foundation licence...
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[21:58] <mfa298> The only thing APRS gives is a pre built listening network but it's more limited in what you can do with it
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[21:59] <fsphil> I don't think you can do digital modes at all Elwell?
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[21:59] <willdude123> Upu: Will you be around tommorrow, I might need some slight guidance?
[21:59] <Upu> I will be after lunch
[21:59] <willdude123> It's probably quite straightforward though.
[22:00] <Upu> yeah just screw the 4 radials on as per the picture
[22:00] <Upu> screw the antenna connector on and then put it outside and high as you can
[22:01] <mfa298> willdude123: Chances are several people around in here can provide some help if you get stuck
[22:02] <Upu> yes I'm not the only person who can help
[22:02] <willdude123> Upu: Which has priority, being high or being outside?
[22:03] <SpeedEvil> towelie says the first.
[22:03] <Upu> high
[22:03] <mfa298> probably depends a lot on where the balloon is in comparison to you and what the building is made from.
[22:04] <Upu> that too
[22:04] <willdude123> Bricks, I think. :)
[22:04] <fsphil> yea the balloon certainly has a height advantage
[22:04] <willdude123> Well, not all bricks, obviously.
[22:04] <fsphil> if it's near you then you'll probably receive it outside near the ground
[22:05] <willdude123> I have an awkward window, so It might be a bit hard.
[22:05] <mfa298> different bits of the building will have different losses (and they're not always what you'de expect) the aim is to have as little loss from things around you as possible
[22:05] <willdude123> I can't put it in the loft.
[22:05] <chrisstubbs> willdude123, scaffolding pole in the middle of the garden might work if its pretty close to you
[22:05] <chrisstubbs> just need to get it as high as possible
[22:05] <mfa298> (trees also work)
[22:06] <chrisstubbs> or take a laptop to a hill
[22:06] <willdude123> Parents probably wouldn't be too happy.
[22:06] <willdude123> I have a monkey bar thing?
[22:06] <chrisstubbs> its all about line of sight
[22:06] <fsphil> just try it in a window first, I've tracked a flight through a window before
[22:06] <chrisstubbs> if there is a clear path between you and the balloon it will work pretty well
[22:07] <willdude123> This is why I need to get a usb hub and wifi dongle for my raspberry pi.
[22:07] <willdude123> So I can have outdoors antennae.
[22:07] <willdude123> I guess it'd still need to be powered.
[22:07] <willdude123> I'll experiment with stuff.
[22:08] <willdude123> Upu: How long is the coax cable?
[22:08] <mfa298> or more coax cable (although ideally you'de probably want to move the hab amp to being closer to the antenna)
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[22:09] <willdude123> There's not many places I can safelt get high.
[22:09] <willdude123> *safely
[22:09] <willdude123> So I'll just get as high as I can.
[22:09] <fsphil> keep it simple to start with
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[22:10] <willdude123> Night guys.
[22:10] <mfa298> willdude123: a lot of it will be experimentation. If you can put the antenna outside a clear view of the sky might be as good as having more hight
[22:10] <chrisstubbs> night will
[22:11] <cuddykid> Upu: Geraldine has sent the money :)
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[22:11] <Upu> thanks mum
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[22:17] <chrisstubbs> Night all
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[22:37] <mfa298> welcome dshaw__
[22:38] <dshaw__> hey mfa298!
[22:39] <mfa298> I'm not sure who's still awake but this is the best place to ask all things dl-fldigi and running gps/radio on a pi (or anything else you wanted to try)
[22:40] <dshaw__> sounds great, thanks for all the help and letting me know about this place
[22:41] <dshaw__> for anyone around, i'm using a raspberry pi and wiring pi to send serial data to an NTX2. from here, I'm able to find my signal on SDR#, but am having issues when trying to decode with dl-fldigi. wasn't sure if anyone knew of project sites that had detailed info on these types of issues
[22:42] <mfa298> the usual suggestion there is to look around ukhas.org.uk but from what you said in the other channel I think you've already done that.
[22:42] <daveake> What's the Pi --> NTX2 connection?
[22:43] <daveake> i.e. Are you waggling a line up and down like the wiki suggests for Arduino?
[22:44] <S_Mark> mfa298: is there some kind of pi channel? I think I almost have the hourly working on a pi. This is on my pi right now http://hourly.stratodean.co.uk
[22:44] <dshaw__> well i've hooked my TXD pin on the pi to my computer and am able to read the serial data I'm sending, so I know that part is working correctly. from here, the physical connection is the same as the "hooking up an arduino to NTX2" as found on the UKHAS site
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[22:44] <daveake> OK so you've opened the serial port and are sending data through that?
[22:45] <dshaw__> yeah I believe this is OK. I haven't seen anyone else use wiringpi-python to send serial data on these projects, but it appears to be working here. specifically, I can watch the COM port on my comp with PuTTY and see the telemetry strings I'm sending
[22:45] <dshaw__> they *should* be in the proper telemetry string format that dl-fldigi needs
[22:47] <mfa298> S_Mark: looks good, I think it was Hix and chrisstubbs that were interested in a pi hourly setup.
[22:48] <S_Mark> Ok, yeah have spoken to both so will see if they can get it set up on theirs too
[22:48] <daveake> OK, so next thing is to check the baud rate/stop bits/parity/data bits match in wiringpi and dl-fldigi
[22:48] <S_Mark> it's still a bit hit and miss at the moment so will keep an eye on it
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[22:49] <daveake> Also, what issues are you having decoding? Any of it decoding or none at all?
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[22:49] <dshaw__> daveake: I'm not sure the best way to confirm this. I've posted on the wiringpi serial site and they ensured me it was 8N1
[22:50] <dshaw__> daveake: which, despite my limited knowledge, should be 1 start, 8 data, and 1 stop
[22:50] <daveake> Yes I'm sure it is - that's a common setting
[22:50] <dshaw__> daveake: not decoding at all, but within SDR# I'm seeing a spike at the frequency labeled on the NTX2
[22:50] <daveake> *a* spike? Not 2?
[22:51] <daveake> Do you just get one line in dl-fldigi then?
[22:54] <dshaw__> using SDR#, right now I'm only seeing 1 spike
[22:55] <daveake> OK no modulation so you need to check your Pi --> NTX2 wiring
[22:55] <daveake> Is the spike at the NTX2 frequency?
[22:56] <dshaw__> daveake: Ahh, so there should be two spikes. Due to the two different voltages states the pi is applying to the NTX2?
[22:57] <dshaw__> daveake: yes the spike is at the NTX2 frequency
[22:57] <daveake> Yes you should get 2, approx 450Hz apart usually but tha depends on the resistor values you used
[22:58] <dshaw__> daveake: I understand. I believe this will be a little bit lower, since the pi outputs lower than the ardunio, maybe around 300 Hz
[22:59] <daveake> I /think/ the wiki lists different values for 3.3V and 5V arduinos, and you should use the former values ideally, but 300Hz is fine for <=300baud
[23:00] <dshaw__> daveake: I have to run to a presentation, do you reside in this irc often?
[23:00] <daveake> erm yes :)
[23:01] <daveake> But at this point it's a general problem not Pi-specific so most people can help
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[23:01] <dshaw__> daveake: Perfecto! I will work on this more and see you soon.
[23:01] <daveake> ok
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[23:35] <Guest44438> hi
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[00:00] --- Thu Apr 4 2013