[00:00] <MLow> hm
[00:00] <MLow> lets see with 50ms
[00:01] <MLow> because with 5 all i head is the radio turn on then off
[00:01] <MLow> no modulation
[00:01] <MLow> heard*
[00:01] <fsphil> is the squelch on the receiver on?
[00:02] <MLow> the HT is auto squelch and the mobile has it turned to a very fine threshold
[00:02] <fsphil> ah
[00:02] <fsphil> I had it off on my tests
[00:02] <fsphil> the ht was too slow
[00:02] <fsphil> worth a try
[00:03] <MLow> im decoding with the mobile, and i just turned it off
[00:05] <MLow> turned the squelch off an i can hear the whole packet
[00:06] <MLow> still no decode though
[00:06] <fsphil> I don't understand it
[00:07] <fsphil> does the avr vcc pin have a decoupling cap?
[00:08] <MLow> its from a regulated source but i tried and no difference
[00:09] <MLow> bench supply
[00:10] <fsphil> that rules out my second question :) (if the supply can provide enough for the hx1)
[00:10] <fsphil> does it sound ok?
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[00:10] <MLow> the audio?
[00:10] <fsphil> yea
[00:10] <MLow> yeah it sounds like a normal packet
[00:11] <MLow> this area is pretty busy
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[00:11] <MLow> quiet, but normal sounding
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[00:20] <fsphil> it's almost certain to be something really simple :)
[00:20] <fsphil> getting late here, night!
[00:21] <MLow> yeah i know, it's annoying
[00:21] <Lunar_Lander> gn8 fsphil
[00:21] <MLow> 2 days i've been at this
[00:21] <MLow> night tho
[00:29] <MLow> no one got any ideas/
[00:33] <MLow> its kind of frustrating :)
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[02:53] <Lunar_Lander> New York won!
[02:58] <MLow> woo its over
[02:58] <Lunar_Lander> xD
[02:58] <Lunar_Lander> german TV screwed up MLow
[02:58] <Lunar_Lander> they ran a commercial while a touchdown occurred
[02:59] <MLow> commercials?
[02:59] <Lunar_Lander> yeah
[02:59] <MLow> i dont watch much tv...
[02:59] <Lunar_Lander> they ran commercials and trailers throughout the game
[03:00] <MLow> i dvr stuff over the air
[03:00] <Lunar_Lander> ah
[03:01] <natrium42> hi mr. lunar_lander
[03:02] <Lunar_Lander> hi natrium42
[03:03] <natrium42> i watched the end of it too
[03:03] <natrium42> how is your project, Lunar_Lander
[03:03] <natrium42> ?
[03:04] <Lunar_Lander> running OK, thanks
[03:04] <Lunar_Lander> and yours
[03:04] <Lunar_Lander> ?
[03:04] <natrium42> progressing slowly
[03:04] <natrium42> :)
[03:07] <Lunar_Lander> yea :)
[03:07] <Lunar_Lander> I'm trying to get TinyGPS
[03:07] <Lunar_Lander> :)
[03:07] <Lunar_Lander> to understand it
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[03:14] <MLow> http://www.mouser.com/ProductDetail/3M-Electronic-Specialty/4620/?qs=sGAEpiMZZMv8zGqLGCw0qKCrLOwyHBWqV8o%2ffOPAIZw%3d
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[09:28] <costyn> moaning
[09:29] <costyn> you guys seen this? http://itunes.apple.com/us/app/circuit-playground/id492487671
[09:29] <costyn> i'm liking it a lot
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[10:12] <Upu> http://imagebin.org/197576
[10:14] <daveake> What's the pink wire for? :p
[10:14] <daveake> aerial?
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[10:17] <UpuWork> oh that was just a fix for the old inventek antenna
[10:17] <daveake> ah
[10:17] <UpuWork> Its the uBLOX 6 MAX I'm showing
[10:17] <daveake> It's erm, small :)
[10:19] <Upu> very
[10:24] <fsphil> that's probably as small as it can get without professional pcb assembly
[10:30] <costyn> Upu: that's pretty tiny woa
[10:31] <fsphil> potentially nice device for tracking: http://aseigo.blogspot.com/2012/01/reveal.html
[10:32] <fsphil> a little under-powered, but has usb ports. should be able to connect to a radio easily, and can run real linux
[10:34] <costyn> Upu: any indication what the breakout and antenna's are going to cost?
[10:34] <UpuWork> not a lot
[10:35] <costyn> couple pounds?
[10:35] <UpuWork> Probably not even that
[10:35] <UpuWork> depends how many they manage to panelize
[10:35] <costyn> ok thx
[10:36] <UpuWork> I ordered the pico ones and the normal with Sarantel
[10:36] <UpuWork> by my calcs we'll get 3 pico and 2 Sarantel per 5x5 PCB
[10:36] <UpuWork> so 30 Pico boards and 20 Sarantel boards and it came to £16.48
[10:36] <costyn> ah ok cool
[10:43] <gonzo_wk> for tracking, isn't it better to hard code the software, rather than layering on an OS? More reliable for am simple app
[10:43] <SpeedEvil> Depends.
[10:43] <SpeedEvil> If you are not asking much of an OS, it tends to be very reliable.
[10:44] <SpeedEvil> When was the last time your system died while running bash scripts.
[10:44] <gonzo_wk> daily
[10:44] <SpeedEvil> If you require hard-realtime events, when the system is busy - perhaps
[10:45] <gonzo_wk> for such a simple, self contained unit, seems counter intuitive to add the complication of extra code
[10:46] <SpeedEvil> Well...
[10:46] <SpeedEvil> Booting a 'complex' system will involve _MANY_ lines of code.
[10:46] <gonzo_wk> when I'm coding these simple apps, I'm counting the depth of function calls, stack space and managing the mem, byte by byte
[10:46] <SpeedEvil> Just to get it to the point that you can talk to the serial ports, and use DRAM and flash.
[10:46] <SpeedEvil> Linux does all that for you.
[10:48] <gonzo_wk> I'm prob from a different programming culture. I've only written within an os when it's one i've written
[10:50] <fsphil> avr's are my only experience of writing software for a raw machine
[10:51] <SpeedEvil> For small AVR, I wouldn't hesitate.
[10:51] <fsphil> yea
[10:51] <fsphil> anything more complex I'd definitely want something like linux
[10:52] <gonzo_wk> I mistrust OS's, as you don't usually get the source. And in the case of an open source OS, I'd probably rewrite it, as I would get frustrated that it wast written the way I would have done it.
[10:52] <SpeedEvil> For chips like ARM, where you need well over a thousand lines of code to bring the system up, not even mentioning drivers, writing a hundred line program that you can debug, rather than a few thousand line one that will require JTAG to debug, ....
[10:53] <gonzo_wk> I work at the lower end of the spectrum, PIC level
[10:53] <number10> me too :)
[10:53] <SpeedEvil> Sure - I assumed the comment was about the platform fsphil mentioned
[10:54] <gonzo_wk> day to day work is on the 386ex, but that is our own SO
[10:54] <gonzo_wk> OS
[10:54] <cuddykid> hi all
[10:54] <gonzo_wk> most of my debug requires a 'scope and the schematics
[10:54] <number10> hi cuddykid
[10:54] <cuddykid> hi number10 :)
[10:55] <fsphil> I'd love to write an OS some day, but I know it would be pretty useless :)
[10:55] Action: SpeedEvil looks at his 386ex platform.
[10:55] <cuddykid> UpuWork: Is the turn around time for Seeed studio boards about 2 weeks from order?
[10:55] <SpeedEvil> (Garmin GPS12)
[10:55] <SpeedEvil> I've idly wondered about adding a little RAM, and linuxing it.
[10:55] <SpeedEvil> But it's likely to be way too complex.
[10:57] <fsphil> linux on an atmega.. I suppose it would be possible if extra memory was added
[10:58] <fsphil> totally pointless but possible :)
[11:00] <SpeedEvil> There is a nutter over on ##electronics
[11:00] <SpeedEvil> Who has done a PC emulator on an 8031
[11:00] <fsphil> haha
[11:00] <daveake> Sorry you got that the wrong way round ;)
[11:01] <fsphil> I was going to do a 6502 emulator on the avr, but it looks like that's been done already
[11:01] <SpeedEvil> No.
[11:01] <SpeedEvil> I diddn't.
[11:01] <SpeedEvil> that's why he's a nutter.
[11:01] <daveake> I was joking
[11:01] <gonzo_wk> ah, 6502, fills me with a warm nostalgic feeling
[11:01] <fsphil> aye
[11:02] <fsphil> I've got a failed C64 here, if I ever get time I'm gonna take the 6510 out of it and see if I can get it to do something
[11:02] <daveake> I did Z80 rather than 6502. Nostalgic? Yes. Warm? Er ....
[11:03] <gonzo_wk> never moved up to z80. Hard coding MC on the 6502 was me. No assembler, as I was a poor school kid
[11:03] <fsphil> reading a gps on a CPU without a hardware uart and a 1mhz processor would be tricky
[11:04] <daveake> You realise I have a "mhz vs MHz" sopabox, just like your "space" one? ;)
[11:04] <daveake> soapbox even
[11:05] <gonzo_wk> use Mc/s that is more fun
[11:05] <fsphil> actually not even that, it's 0.98 MHz or something
[11:05] <daveake> I don't think the Z80 was much faster, if at all, at 4MHz than the 6502 at 1. It needed 4 cycles to do anything
[11:06] <SpeedEvil> err
[11:06] <SpeedEvil> Not IIRC
[11:07] <SpeedEvil> Wasn't it more like 12?
[11:07] <UpuWork> First person to get a 6502 to the edge of near space is going to get on hackaday for sure
[11:07] <fsphil> working on it UpuWork :)
[11:07] <daveake> :)
[11:07] <SpeedEvil> UpuWork: Coincidentally. I found my ZX81 motherboard yesterday.
[11:07] <UpuWork> Meh ZX81 I was a C-64 boy :)
[11:08] <fsphil> ooh ooh, 1000 hab points if the SID chip is used to generate the rtty
[11:08] <UpuWork> no
[11:08] <UpuWork> that means you win the HAB points this year
[11:08] <UpuWork> especially if it plays the Elite theme tune as well
[11:08] <fsphil> lol
[11:08] <gonzo_wk> the AMSAT people were still usong old earky 70's cosmac processors till recentkly
[11:08] <fsphil> the ocean loader... as it falls into the ocean
[11:09] <UpuWork> can you imagine RTTY interspaced with the tune from Revenge of the Mutant Llamas
[11:09] <daveake> SpeedEvil according to wikipedia, an INC was 1 machine cycle, and machine cycles were 3-6 clock periods.
[11:09] <SpeedEvil> daveake: It's been a while.
[11:09] <daveake> It has! I can't remember where the 4 came from but that's the one stuck in my mind
[11:09] <SpeedEvil> _somewhere_ I have a diagram I made for a 8 (?) chip video terminal with a z80.
[11:10] <SpeedEvil> In the inter-instruction times, it jammed a counter onto the RAM, read a byte, and then output it in a shift register to video, as 4 2 bit samples.
[11:10] <daveake> I remember writing code using the instruction I was familiar with, then sometimes finding that there was a single instruction that encompased 2 or 3 of mine.
[11:10] <daveake> instructions
[11:11] <SpeedEvil> 2 bit = sync, black, grey, white
[11:11] <SpeedEvil> Framing in software
[11:11] <daveake> I only had a set of toggles to interface to my home-brew, so I knew quite a few of the opcodes in hex
[11:13] <fsphil> you've all done some pretty hard core stuff
[11:17] <number10> oh, I was kipping - I missed the "I remember the days when..". session
[11:19] <fsphil> the 6510 actually looks pretty complicated to wire up
[11:19] <daveake> number10 I was wondering where you'd gone :)
[11:21] <fsphil> we've not go to punch cards yet number10, there's still time
[11:21] <number10> lol fsphil , I discovered that SamSilver_ is slightly older that you or I daveake
[11:21] <daveake> with the diagonal line drawn across the top of the pack to help recovery after you've dropped them on the floor ...
[11:22] <daveake> yippee I'm not the oldest fart
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[11:22] <SamSilver_> that was a slip of the finger I am 43 ;-)
[11:22] <SamSilver_> number10^^^
[11:22] <daveake> in that case I'm 41
[11:22] <number10> and you know my typos
[11:22] <SamSilver_> bugger I just can't win
[11:22] <GW8RAK> I log on just as there's a cryptic comment. I wonder what the typo was? :)
[11:23] Action: daveake thinks ... if we'd not walked to the other end of the field to launch cloud3, it'd have landed 400m out not 500m
[11:23] <number10> age GW8RAK, we seemed to have a competition to see who was the oldest, now everyone wants to be younger
[11:24] <number10> and if you would have tied you own chute daveake ?
[11:24] <gonzo_wk> cue python sketch, again!
[11:24] <number10> your
[11:25] <GW8RAK> I think I'm the oldest
[11:26] <SamSilver_> 53
[11:26] <number10> > 51
[11:26] <SamSilver_> beat that if you can
[11:26] <daveake> =number10
[11:27] <number10> I think navrac2 has to be up there
[11:27] <daveake> rocketboy?
[11:27] <number10> yes, he should change his nick to rocketman
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[11:39] <GW8RAK> Beats me SamSilver
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[12:13] <SamSilver_> ha HA but are you this good looking?? > http://www.facebook.com/profile.php?id=656556583
[12:14] <costyn> SamSilver_: no one could be! :)
[12:15] <SamSilver_> Thanx costyn you are invited to my 60th BDay party
[12:15] <costyn> w00t
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[12:39] <CovBalloon> My plan is to get a ft-817 but in the meantime whats the smallest cheapest 70cm 434 radio that I can get?
[12:39] <CovBalloon> to start tracking my arduino NXT2 configuration?
[12:40] <daveake> Probably an AR8000 or that scanner that begins with U that I can't remember the name of :)
[12:40] <daveake> Y
[12:41] <daveake> http://www.ebay.co.uk/itm/Yupiteru-Scanner-/150752382711?pt=UK_ConsumerElectronics_SpecialistRadioEquipment_SM&hash=item23198acef7#ht_1614wt_1396
[12:41] <CovBalloon> what would happen if we have multiple balloon launches on the same day using 434 for tracking, would we get lots of clashing of signals?
[12:42] <gonzo_wk> any RX that will do SSB at that freq
[12:42] <daveake> We try and choose different frequencies to Tx on :)
[12:42] <daveake> As people start using the RFM22B (the frequency of which is set by software) it'll be easier
[12:42] <fsphil> there have been clashes
[12:53] <daveake> Once my NTX2s have been lost or destroyed by salt water :p, I'll be using rfm22bs only
[12:56] <SamSilver_> whats wrong with using freash water to destroy them? ;p
[12:56] <SamSilver_> fresh
[12:56] <daveake> takes too long
[12:57] <daveake> salt water + electricity = so much more efficient
[12:58] <fsphil> shame you can't use the generated H2 to launch a second balloon :)
[12:58] <daveake> :)
[13:00] <fsphil> why are there no cheap touchscreen monitors
[13:01] <fsphil> there are cheaper android tablets with the screen size that I'm after
[13:01] <fsphil> that doesn't make sense
[13:04] <CovBalloon> borrow an ipad and buy the remote screen app and hook it up to a laptop via wifi
[13:04] <staylo> Most people can't work out what they want a tablet for, what the heck would they do with a small touchscreen monitor? :)
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[13:23] <fsphil> this is for a basic interface, display a list and have someone press one
[13:24] <daveake> I have a 7" Lilliput touchscreen monitor for my car PC
[13:24] <daveake> £150-ish I think :(
[13:25] <cuddykid> ahh that's what it was daveake :) I was wondering how on earth you managed to get fldigi running on a tablet lol
[13:25] <daveake> lol
[13:26] <cuddykid> a real area for improvement with my project is the chase car - it was quite frankly a mess with wires etc - needs sorting out :P
[13:26] <daveake> Yeah, we keep using Julie's car as there's more space. Still haven't got round to embedding the monitor in my car somehow
[13:26] <daveake> Must do that soon
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[13:43] <gonzo_wk> daveake: did you recover the pics from CLOUD?
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[13:54] <fsphil> the raspberry pi might make a good chase computer
[13:55] <SpeedEvil> Indeed.
[13:55] <daveake> gonzo_wk Yep :-)
[13:55] <fsphil> should be able to run fldigi fine
[13:55] <SpeedEvil> Slightly annoying power consumption ofr in-flight
[13:55] <daveake> fsphil Indeed.
[13:55] <SpeedEvil> Though it would add flexibility
[13:55] <fsphil> that tablet I linked earlier should be able to run fldigi also
[13:55] <SpeedEvil> I've run fldigi on my phone.
[13:55] <SpeedEvil> :)
[13:56] <SpeedEvil> (not dl)
[13:56] <Laurenceb> raspberry pi is like fusion power
[13:56] <Laurenceb> always going to be ready... in a while
[13:56] <fsphil> dl- should run too I suspect
[13:56] <SpeedEvil> Hopefully it's less than 20 years out
[13:56] <Laurenceb> hehe
[13:57] <Laurenceb> 3months so far
[13:57] <Laurenceb> ~2more orders of magnitude yet
[13:57] <gonzo_wk> are they viewable yet dave?
[13:57] <SpeedEvil> ITER isn't even supposed to do D-T fusion till 2026
[13:58] <Laurenceb> ooh i should check out the construction gallery
[13:58] <SpeedEvil> And it's probably optimistic to say that the first generation of reactors after that could be commercialised.
[13:59] <SpeedEvil> So 2046 is probably pushing it a bit.
[13:59] <daveake> http://www.flickr.com/photos/daveake/sets/72157629187109165/
[14:00] <gonzo_wk> ta
[14:00] <SpeedEvil> Yow.
[14:00] <SpeedEvil> 65kW of cooling at 4.5K
[14:00] <SpeedEvil> That's some fridge.
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[14:02] <Laurenceb> http://www.iter.org/doc/all/content/com/gallery/Construction/TKMFoundations/Last_plot_pouring_1.jpg
[14:02] <Laurenceb> looks like foundations finished :P
[14:04] <gonzo_wk> nice pics dave. Suprised by the corrosopn tio the batts
[14:05] <SpeedEvil> Electrically driven corrosion goes _fast_
[14:05] <daveake> Yep
[14:06] <costyn> #26560: ip adres details rWeb appliance
[14:06] Last message repeated 1 time(s).
[14:06] <costyn> sorry
[14:07] <costyn> middlemouse button mistake
[14:07] <Laurenceb> http://www.iter.org/doc/all/content/com/gallery/Construction/TKMFoundations/DSC_0916.jpg
[14:07] <Laurenceb> that guy has a lot of work to do
[14:08] <daveake> Bloggy thing done - http://www.daveakerman.com/?p=220
[14:08] <costyn> so whatever happened to that Italian guy and his cold fusion?
[14:09] <costyn> daveake: cool
[14:09] <Laurenceb> hmm good question
[14:13] <costyn> there are some new news items on Google News when searching for Andrea Rossi
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[14:34] <SamSilver_> nice blog daveake
[14:35] <daveake> tvm
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[15:00] <SpeedEvil> Impressive - ITER has ~11MWh stored in the magnetic field
[15:00] <SpeedEvil> Just the DC component
[15:02] <russss> well, will have :)
[15:02] <SpeedEvil> Indeed.
[15:02] <SpeedEvil> Right now it's a few millijoules.
[15:03] <russss> I went to see JET a while back, it's a pretty impressive machine
[15:03] <russss> http://www.flickr.com/photos/russss/sets/72157623975249687/
[15:03] <SpeedEvil> Neat!
[15:04] <russss> they have open days occasionally (although it's running again now so you can't go inside it)
[15:04] <SpeedEvil> I like the hand-labelled stuff
[15:04] <Laurenceb> hmm sun machines
[15:04] <Laurenceb> no silly nonsense there
[15:04] <SpeedEvil> Well - sun machines make sense in a fusion reactor.
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[15:05] <Laurenceb> lol
[15:05] <Laurenceb> http://www.flickr.com/photos/russss/4623429269/in/set-72157623975249687/#/photos/russss/4623430139/in/set-72157623975249687/lightbox/
[15:05] <Laurenceb> looks familiar
[15:05] <russss> Sun with CDE as well
[15:05] <russss> old school
[15:06] <Laurenceb> we used to have to use sun workstations on uni programming course
[15:09] Lunar_LanderU (83ad0c6b@gateway/web/freenode/ip. joined #highaltitude.
[15:09] <Lunar_LanderU> hello
[15:09] <SpeedEvil> http://fatpita.net/?i=278 - less intellectual than the above pic.
[15:09] <Laurenceb> haha the emergency stop button is brilliant
[15:11] <Lunar_LanderU> how is the life?
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[15:19] <Lunar_LanderU> is Upu here?
[15:19] <UpuWork> at work a little busy but about yeah
[15:24] <Lunar_LanderU> OK
[15:24] <Lunar_LanderU> just wrote you :)
[15:28] <Lunar_LanderU> UpuWork: but when you are busy it might be better if I ask you again later?
[15:29] <CovBalloon> Lunar, are you just starting out on your payload build?
[15:29] <Lunar_LanderU> so to speak, yes
[15:30] <CovBalloon> your first one?
[15:30] <Lunar_LanderU> yes
[15:31] <SamSilver_> bet this has happened to a few of us! > http://fatpita.net/?i=10977
[15:31] <CovBalloon> I sent Upu an email earlier today looking to get a small colaboration team set up, fancy a joint effort?
[15:32] <Lunar_LanderU> if I can help from Germany
[15:32] <UpuWork> Hey CovBalloon personally I struggle to get the time to do it on my own never mind with a team however sure there are alot of people who would be interested
[15:32] <UpuWork> I got your mail will respond later on
[15:34] <CovBalloon> No problem Upu, just seems like we could get a lot more done if we work together, I am planning on getting all the pieces together so I can achomplish what other have already done. Would be more effective to take it to the next level and use my resources to help get there.
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[15:34] <UpuWork> And yes I'm working on the GPS Break outs
[15:35] <UpuWork> The engineering sample chips turned up today : http://imagebin.org/197576 (small one at the front)
[15:35] <CovBalloon> ;) I'll have a couple
[15:35] <UpuWork> Be a few weeks
[15:36] <UpuWork> I'll stick a web shop front end up when I get a moment
[15:37] <UpuWork> no problems I'll mail it roudn
[15:37] <UpuWork> ok work .. bbl!
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[15:38] <Lunar_LanderU> CovBalloon: see you later! :)
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[16:06] <eroomde> #/lastlog eroomde 2
[16:06] <eroomde> fail
[16:08] <SamSilver_> whats up dough boy
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[16:57] Action: hibby realises why matlab is taking an age to run this simple simulation
[16:58] <hibby> **simulink. Running it for 2000 simulated seconds instead of 20.
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[17:12] <cuddykid> ok - after spending about 1hr debugging - I finally realise the importance of putting #defines in capitals :)
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[17:46] <cuddykid> yay - finally have my parser working - got a list of altitudes for the flight!
[17:49] <NigeyS> nope, stayed up and went to the dentist :(
[17:49] <NigeyS> bah wrong box lol
[17:49] <cuddykid> lol
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[18:10] <chris_99> you could probably plot a fancy flight path on google earth
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[18:11] <daveake> That's quite easy actually. e.g. there's an online NMEA --> KMZ converter
[18:11] <Lunar_LanderU> hello daveake
[18:11] <daveake> And no doubt plenty of other programs to do KML or KMZ
[18:15] <daveake> LO LL
[18:16] <LazyLeopard> eyup
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[18:18] <Lunar_LanderU> daveake: may I shout something?
[18:18] Action: LazyLeopard flops in a warm corner. One excellent but exhausting long weekend over...
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[18:29] <cuddykid> ooo - I've just been offered an offer (lol) of sponsorship from my old school :D
[18:31] <gonzo_> someone asked me about the radcom writeup on IQ modulators
[18:32] <gonzo_> poss Upu?
[18:32] <eroomde> i would like to see it gonzo_
[18:32] <Upu> not me I wanted pics of your antenna s:)
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[18:32] <eroomde> but right now I am about to pop home
[18:32] <gonzo_> There's a scan on my server: www.g0nzo.co.uk/misc/radcom_iq/
[18:33] <eroomde> if there's a link to it, could you paste it and include my nick so i can grep for it later?
[18:33] <gonzo_> np will leave it on there
[18:33] <eroomde> thanks
[18:33] <gonzo_> ah, yes, the antennas
[18:33] <eroomde> eroomde_link www.g0nzo.co.uk/misc/radcom_iq/
[18:33] <eroomde> cool grand
[18:33] <eroomde> thanks
[18:33] <eroomde> ttfn
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[18:44] <gonzo_> Upu: www.g0nzo.co.uk/misc/mast2012/
[18:44] <gonzo_> not brilliant, but you get the idea
[18:45] <Upu> cheers having a look
[18:51] <jcoxon> evening
[18:53] <navrac2> evening james
[18:54] <jcoxon> hey navrac2
[18:55] <navrac2> have you tried the rfm spreadsheet register calculator thing?
[18:55] <jcoxon> nope
[18:55] <navrac2> oh ok.
[18:55] <jcoxon> i haven't been playing with rfm recently
[18:55] Action: jcoxon gets easily distracted
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[18:57] <navrac2> Due to work i cant get a clear day for a launch for a month, im trying to build a dual rfm board to do an uplink on the 485mhz RC band with 100mW - but whenever I set the data rate to less than 5--baud it gets an error
[18:57] <Upu> hey jcoxon I have some PCb's on the way and got the MAX6 today, I reckon 1g for GPS and antenna
[18:57] <Upu> want to test the first one ?
[18:57] <jcoxon> Upu, i'm always happy to test stuff
[18:58] <Upu> cool I'll let you know
[18:58] <jcoxon> navrac2, really not sure
[18:58] <Upu> what does the antenova weigh ?
[18:58] <navrac2> and its got to be better than those antenova rubbish...
[18:58] <jcoxon> hehe
[18:58] <jcoxon> 1.2g
[18:58] <navrac2> <1g but b*ggers to solder and hopelessly sensitive to pcb layout
[18:59] <Upu> well this has nice places for you to solder
[18:59] <navrac2> 0.9g on my scales- but then again all my scales in the house lread light...
[19:00] <Upu> ok afk a bit
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[19:03] <griffonbot> Received email: daveake "[UKHAS] Re: CLOUD3 Flight Announcement"
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[19:08] Nick change: nigelvh_ -> nigelvh
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[19:11] <fsphil-laptop> you forgot the balloon daveake? That's almost as bad as me forgetting the payload
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[19:13] <daveake> Pretty good, huh? It was in a cupboard to keep the UV away
[19:13] <daveake> I'm very good at making checklists. I just need a checklist item that says "check the checklist" ...
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[19:16] <fsphil-laptop> yes, that couldn't possibly fail
[19:16] <daveake> :D
[19:17] <daveake> Oh, a question for you. Is there anything in dl-fldigi where it can automatically switch an attached receiver up or down in frequency when the 2 lines fall over either end of the waterfall?
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[19:17] <fsphil-laptop> yes
[19:17] <daveake> I'm thinking about how to make single-handed chase car operation as easy as possible
[19:17] <fsphil-laptop> there's an option buried called auto-tune
[19:18] <daveake> Excellent. Which receivers? Or more precisely, does it include the AR8000 do you know?
[19:18] <fsphil-laptop> it should work for anything supported by hamlib
[19:18] <fsphil-laptop> lemme see
[19:18] <fsphil-laptop> 502 AOR AR8000 0.6.1 Beta
[19:18] <fsphil-laptop> yea
[19:18] <daveake> I remember seeing a control cable on ebay
[19:19] <fsphil-laptop> the current version which you probably have has a slight but that stops it tracking after a while
[19:19] <fsphil-laptop> fixed in a beta version
[19:19] <daveake> Also, this makes it more worthwhile for me to set up a permanent rig at home which I could leave running when I'm out chasing
[19:19] <fsphil-laptop> but/bug
[19:19] <fsphil-laptop> that was my plan
[19:19] <fsphil-laptop> I was able to vnc home and make sure it had locked on
[19:20] <fsphil-laptop> then I was able to let it work away on its own
[19:20] <daveake> And that leads me on to my other question ... how would I go about setting up that rig for outside control (aside from opening up the PC with VNC)?
[19:20] <daveake> i.e. so someone else could use it as a remote receiver like the globaltuners
[19:21] <fsphil-laptop> you could use globaltuners
[19:21] <fsphil-laptop> jcoxon has a simple web interface too
[19:21] <jcoxon> also there is a web interface for dl-fldigi
[19:21] <daveake> yeah, I took a look on their site. Seems ok. Not sure if the AOR8000 is supported but I'd buy another receiver anyway
[19:22] <jcoxon> yeah
[19:22] <jcoxon> i'd have to find i
[19:22] <jcoxon> t
[19:22] <daveake> jcoxon is that what you used when you showed me the live hellschreiber decoding a while back?
[19:29] <fsphil> must fix mine
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[20:01] Action: Laurenceb_ has got bmp085 running with ~1cm rms altitude noise
[20:05] <Laurenceb_> but only in octave
[20:05] <Laurenceb_> with 1hz output :P
[20:20] <Upu> You know Laurenceb I have no idea what you're on about :) Can you explain for a thickie ?
[20:21] <Upu> I know the BMP is a pressure sensor
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[20:23] <Laurenceb_> yeah
[20:23] <Laurenceb_> ive got the altitude noise down to ~1cm per sample
[20:23] <Upu> what is it normally ?
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[20:29] <Laurenceb_> ~30cm or so
[20:29] <Upu> ok I think I get it :)
[20:29] <Upu> "in octave" ?
[20:30] <fsphil> that's more precise than gps
[20:30] <fsphil> a lot more
[20:30] <Upu> so wait
[20:30] <Upu> you can ascertain the altitude to a resolution of 1cm ?
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[20:31] <Laurenceb_> octave - opensource version of matlab
[20:31] <Upu> ok getting closer
[20:31] <Laurenceb_> so ive grabbed baro data at ~130Hz and temperature at ~10hz
[20:32] <Laurenceb_> then i redid all the calibration using floating point variables
[20:32] <Laurenceb_> and low pass filtered everything to ~0.5Hz bandwidth
[20:33] <Laurenceb_> result - 1cm noise XD
[20:33] <Upu> lol but does this mean you can ascertain the altitude to a resolution of 1cm ?
[20:33] <Laurenceb_> now for an infrasound detector
[20:34] <Laurenceb_> kind of
[20:34] <Laurenceb_> it still drifts a bit
[20:34] <Upu> AVR code for it ? :)
[20:34] <Upu> alot of processing ?
[20:34] <Laurenceb_> its in octave atm
[20:34] <cuddykid> creating some nice graphs from the data collected :D
[20:34] <Laurenceb_> not really, should be feasible on avr
[20:34] <Laurenceb_> good for nuclear bomb detection
[20:34] <Laurenceb_> if i had a phased array of them....
[20:37] <Upu> my mind is blown
[20:38] <fsphil> could use that for realllly low frequency sound detection
[20:39] <Laurenceb_> yeah
[20:39] Action: Laurenceb_ tries to work out how low
[20:43] <Laurenceb_> hmm 70dB
[20:43] <Laurenceb_> thats loud
[20:46] <Laurenceb_> http://upload.wikimedia.org/wikipedia/commons/4/47/Lindos1.svg
[20:46] <Laurenceb_> still much better than human hearing
[20:50] <number10> just had a look at your nice photos from cloud3 daveake
[20:50] <daveake> :)
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[21:05] <LazyLeopard> daveake: "Interesting" indeed! :)
[21:07] <daveake> :)
[21:09] <Lunar_Lander> xD
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[21:31] <MLow> another day, to work on my hx1...
[21:33] <fsphil> yay ;)
[21:33] cyrus (~cyrus@89-168-134-246.dynamic.dsl.as9105.com) joined #highaltitude.
[21:33] <MLow> yay....
[21:33] <cyrus> ?????
[21:33] Nick change: cyrus -> Guest20465
[21:34] <Guest20465> ?????
[21:34] <fsphil> !!!!!
[21:34] <fsphil> hiya Guest20465
[21:34] <daveake> $$$$$
[21:34] <fsphil> daveake, you got to step 3?
[21:34] <Upu> you came in 1/2 way through a conversation Cyrus/Guest20465
[21:34] <Guest20465> ......
[21:35] <daveake> <<<<<
[21:35] <Guest20465> ?
[21:35] <daveake> unknown token in babel.c
[21:35] <Guest20465> it wont let me type
[21:35] <Guest20465> direct into bersirc
[21:35] <daveake> except for "it wont let me type"
[21:35] <Upu> its working
[21:35] <Upu> Go get a proper client
[21:35] <Guest20465> i'm using notepad
[21:35] <fsphil> yikes
[21:35] <Upu> this is multiplayer notepad
[21:36] <Guest20465> i'm typing this on a calculator
[21:36] <daveake> I get mine from Staples
[21:36] <fsphil> what calculator?
[21:36] <fsphil> please don't divide the channel my zero
[21:36] <Guest20465> one from staples
[21:36] <fsphil> my/by
[21:37] <Guest20465> ???
[21:37] Guest20465 (~cyrus@89-168-134-246.dynamic.dsl.as9105.com) left irc: Client Quit
[21:37] <Upu> better
[21:38] <MLow> im at my wits end with this hx1
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[21:39] <fsphil> I suppose it's possible you have a faulty one
[21:39] <fsphil> or a fault in the breadboard
[21:39] <MLow> but how
[21:39] <MLow> should i just go forward with making the pcb and hope
[21:39] <fsphil> try it on stripboard?
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[21:40] <MLow> could it be the antenna?
[21:40] <MLow> i just going a quarter-wave whip
[21:40] <MLow> from 22awg
[21:41] <fsphil> don't think so -- must wire up this one and try it with a bad antenna
[21:42] <nigelvh> What is it (not) doing?
[21:43] <nigelvh> Just about anything you've got stuck on the antenna connection will radiate a bit. Enough to pick it up nearby.
[21:43] <MLow> the packet isnt decoding
[21:43] <MLow> with agwpe
[21:43] <nigelvh> That's a whole different beast.
[21:43] <nigelvh> Is this homebrew software, or stuff that you KNOW works?
[21:44] <MLow> agwpe is pretty much standard
[21:44] <fsphil> MLow, can you make a recording?
[21:44] <nigelvh> No, the packet generation
[21:44] <MLow> trackuino
[21:44] <nigelvh> Are you using their code or has it been modified?
[21:44] <MLow> and yes, same code hooked up to a different radio works
[21:44] <nigelvh> Ok, there's the important factor
[21:44] <MLow> i just have to flip the ptt transistor around because the other radio is low ptt
[21:44] <nigelvh> Then it comes down to how it's coupled into the transmitter, and the deviation.
[21:45] <MLow> well right now im putting 3v3logic into the txd, and 5v vcc
[21:45] <MLow> i tried under voltage and over 5v
[21:45] <MLow> 5.14v
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[21:45] <MLow> the wave form looks about right but my eyes are bad
[21:46] <CovBalloon> k
[21:46] <nigelvh> On the radio, when you're listening, how does the volume and sound quality compare to say a known working one, or packet radio you hear on your local digipeater?
[21:47] <MLow> pretty normal
[21:48] <nigelvh> K, Deviation can certainly make a difference here. What is the connecting circuitry between the trackduino and the HX1?
[21:49] <MLow> pin 3, to voltage divider, to hx1 txd pin
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[21:51] <MLow> can you view mp4?
[21:52] <nigelvh> We may want to make a few adjustments there. 1. Bias the input of the HX1 to around 2v with a resistor divider, then couple in the audio signal from the trackuino through a capacitor (2uF?), then have your pot to adjust amplitude, connected to the trackuino.
[21:52] <nigelvh> Yes, I can.
[21:52] <MLow> hm, is that how yours is set up with a filter cap?
[21:53] <MLow> it just bugs me because i built this exactly off the trackuino schematic
[21:53] <nigelvh> I haven't recieved mine yet, but this was recommended to me (and makes good sense to me) by fsphil.
[21:53] <fsphil> the signal is not really audio though
[21:53] <fsphil> it's pwm output from the microcontroller
[21:54] <MLow> yeah
[21:54] <nigelvh> Yes
[21:54] <MLow> true, the datasheet references audio not a pwm pin
[21:54] <nigelvh> In his case. My case is actually a sine wave.
[21:54] <MLow> http://dl.dropbox.com/u/12996303/hab%20pics/VID_20120206_155041.m4v
[21:55] <MLow> still doesnt explain how apparently it works for the trackuino guys
[21:55] <fsphil> myself and Darkside have it working too
[21:55] <MLow> with no interconnecting parts?
[21:55] <fsphil> nope. but the processor runs at 3.3v
[21:56] <MLow> hm
[21:56] <MLow> 16mhz at 3v3?
[21:56] <MLow> color me suprised
[21:56] <nigelvh> Timing is very important.
[21:56] <fsphil> 7.3728 mhz in my case
[21:56] <MLow> yeeesh
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[21:57] <MLow> the waveform does look a bit different than the other packets around here
[21:57] <nigelvh> how so?
[21:57] <fsphil> it certainly sounds ok
[21:57] <MLow> deviation
[21:57] <MLow> it's not uniform
[21:57] <MLow> the packets coming in all look uniform
[21:58] <nigelvh> Is it different by tone, or does it vary by time?
[21:58] <MLow> it sounds the same
[21:58] <MLow> doesn't sound longer or a different tone
[21:59] <nigelvh> I mean the deviation. Does it differ by each tone, a 1200hz tone has a different level than a 2200hz? or over time does the deviation change?
[21:59] <nigelvh> Also, how long of a startup period are you giving the transmitter?
[21:59] <MLow> it seems to deviate more at the end
[21:59] <MLow> 5ms, but i've tried many, up to a second
[22:00] <MLow> im just leaving the squelch open on my radio
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[22:00] <dena> hello, anyone knows how to get datalogging on Trackuino ? or is there any other opensource project with arduino +tracking + datalogging + sensors ?
[22:00] <dena> noob here :)
[22:01] <MLow> openlog is pretty good
[22:01] <jcoxon> dena, where are you based?
[22:01] <nigelvh> No, the transmitter. How long is it on before you start sending packets?
[22:01] <dena> poland :)
[22:01] <MLow> you mean in radio_hx1 file?
[22:01] <nigelvh> Perhaps. I don't know where that is set.
[22:01] <MLow> digitalWrite(PTT_PIN, HIGH); delay(5); // The HX1 takes 5 ms from PTT to full RF
[22:01] <jcoxon> dena, you going for aprs?
[22:02] <dena> yes
[22:02] <jcoxon> cool
[22:02] <nigelvh> I might set it longer, say 20-30ms.
[22:02] <jcoxon> have a chat with Darkside
[22:02] <Lunar_Lander> yay hello dena
[22:02] <Lunar_Lander> another new country :)
[22:02] <MLow> ive tried all kinds of figures
[22:02] <dena> :
[22:02] <jcoxon> he has worked with the trackuino code
[22:02] <dena> :)
[22:02] <Lunar_Lander> btw MLow I was stupid with my openlog
[22:02] <Lunar_Lander> I soldered the pins so that the SD card is on top
[22:03] <Lunar_Lander> but the status lights are on the chip side
[22:03] <Lunar_Lander> :(
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[22:04] <MLow> i just used the code and make my own :P
[22:04] <Lunar_Lander> :)
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[22:06] <nigelvh> MLow: Looking at your video, the two tones are significantly different in deviation.
[22:06] <MLow> right
[22:06] <MLow> that's what i was saying
[22:07] <MLow> didnt know if that was norming, the first is 1200hz right?
[22:07] <MLow> then 2200?
[22:07] <nigelvh> You'll want them closer than that. The two tones are 1200 and 2200, but they don't have a particular order.
[22:07] <nigelvh> Do you have a scope?
[22:07] <MLow> nope
[22:08] <nigelvh> I suppose you could do it feeding the audio into your computer directly from the trackuino.
[22:08] <nigelvh> The question here is if the frequency based deviation difference is actually what's being generated, or happening in the HX1.
[22:08] <MLow> i can feed the audio into my laptop
[22:09] <MLow> gimme a sec
[22:10] <MLow> lol now arduino ide is giving me crap
[22:13] <Darkside> oh yay
[22:14] <cuddykid> first graph - http://i.imgur.com/BDImE.png
[22:15] <Laurenceb_> airflow is a big source of heat loss
[22:15] <Laurenceb_> maybe some air leaks in it?
[22:16] <cuddykid> yeah
[22:16] <cuddykid> definitely
[22:17] <Laurenceb_> when ive flown temperature sensors ive seen solar heating
[22:17] <Laurenceb_> *when
[22:17] <Laurenceb_> doh nvm
[22:17] <cuddykid> I made sure it was on the underside
[22:17] <cuddykid> the external one
[22:17] <Laurenceb_> i see
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[22:18] <nigelvh_> Woo firefox crash!
[22:18] <fsphil> brrrr cold outside
[22:18] <MLow> seeing some weird stuff
[22:18] <nigelvh_> MLow: What's that?
[22:18] <MLow> plugged the pwm pin directly to a headphone jack
[22:19] <MLow> via a breakout plug and cord
[22:19] <Darkside> MLow: you're going to get some weirdness with that, your sound card is going to be doing decoupling
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[22:19] <Darkside> sorry, DC blocking
[22:19] Nick change: nigelvh_ -> nigelvh
[22:19] <nigelvh> Try a decoupling capacitor in there.
[22:22] <MLow> avrdude: verification error, first mismatch at byte 0x0880
[22:23] <MLow> slowly starting to become maddening
[22:24] <Laurenceb_> cuddykid: excel??
[22:24] <nigelvh> I've been there. When I was doing my packet code, I didn't have something quite right, and since packets won't decode without everything being exactly right, I got to the point of comparing the entire packet waveform of a good source, and my new transmitter, and adjusting bit by bit till I found it. I went a little crazy that day.
[22:25] <MLow> why is arduino deciding to flash wrong :(
[22:25] <nigelvh> Good question. Besides making sure you've got the right part selected, it's hard to tell.
[22:28] <cuddykid> Laurenceb_: yeah
[22:29] <fsphil> hehe nigelvh , did something very similar. decoded the packets by hand at one point
[22:29] <nigelvh> fsphil: makes one a little nuts doesn't it?
[22:30] <MLow> i just now noticed the verification fail who knows how many time this has happened
[22:33] <fsphil> nigelvh, yea - but felt great when I finially noticed what I was doing wrong (I was doing the bit stuffing wrong)
[22:34] <Laurenceb_> dude
[22:34] <Laurenceb_> learn2gnuplot
[22:34] <nigelvh> I wasn't bit stuffing the CRC, and I had the crc backwards because the stupid doc said to.
[22:35] <fsphil> hehe
[22:36] <fsphil> my problem was I was bit stuffing the headers
[22:37] <MLow> ok
[22:37] <MLow> hooked up to laptop now
[22:39] <MLow> its very loud
[22:39] <MLow> but looks different
[22:39] <MLow> and
[22:39] <MLow> more importantly
[22:39] <MLow> it decodes
[22:42] <fsphil> sounds like the program is doing what it's suppose to
[22:42] <MLow> gps is not working but meh
[22:43] <Darkside> MLow: what codebase are you using, original trackuino or project horus's fork
[22:43] <nigelvh> Are the tone levels even?
[22:44] <MLow> just the base trackuino
[22:44] <MLow> and yes the look it, bad eyes tho
[22:44] <Darkside> MLow: mm ok, that should just take NMEA data fine
[22:44] <fsphil> hah, raspberry pi's before the end of the month. *maybe*
[22:45] <MLow> i mean it's decoding the packet on my laptop
[22:45] <Upu> Duke Nuke 'Em Edition
[22:45] <Darkside> go buy a beaglebone already
[22:45] <fsphil> at least I have Duke 4 in my hands
[22:45] <fsphil> still not played it :)
[22:45] <nigelvh> MLow: try using the decoupling capacitor, and bias up to about 2v with the transmitter.
[22:45] <Upu> don't want to break this to you but its rubbish
[22:45] <nigelvh> See if that helps.
[22:46] <fsphil> Upu, yea I've not got great expectations for it
[22:46] <MLow> what do you mean?
[22:46] <Darkside> nigelvh: its interesting, on our board we're just feeding 3.3v TTL Straight into the TXD pin and it works perfectly
[22:46] <MLow> hook the hx1 up with a decoupling cap and resistor divider with output of 2v?
[22:47] <nigelvh> Yeah, so that the txd pin of the HX1 sits at about 2v, then the decoupling cap will pull up and down from there.
[22:48] <nigelvh> Darkside: yeah, I'm not sure what the difference is, but something's funky.
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[22:57] <MLow> yeah i just cant get it to decode
[22:58] <MLow> the deviation is still very different
[22:58] <MLow> 10uf and 100uf cap
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[22:58] <fsphil> just trying it on breadboard here
[23:00] <fsphil-laptop> typically I've lost the funcube dongle
[23:02] <MLow> i mean, cant i just tweak one of the pots on the hx1?
[23:02] <MLow> their datasheet leaves much to be desired
[23:05] <Darkside> if you have a SDR to watch where the signal goes, then yes
[23:05] <Darkside> so those 2 pots on teh right
[23:05] <Darkside> one of them adjusts deviation, one adjusts centre frequency
[23:06] <Darkside> but i dont know which is which
[23:06] <Darkside> brb
[23:08] <fsphil-laptop> well this is annoying. I've set it somewhere to keep it safe, and can't remember where that was
[23:13] <MLow> somewhere very safe obviously seeing as you cant even find it
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[23:17] <fsphil-laptop> indeed. I've found about 5 other things I'd previously lost
[23:17] <nigelvh> fsphil: how do you like the funcube dongle? I've been thinking about getting one.
[23:19] <fsphil-laptop> I find them pretty useful, especially for things like this where I want to see a better view of a signal
[23:19] <fsphil-laptop> they are very susceptible to noise though -- any nearby strong signals can overpower them
[23:19] <MLow> your too helpful :P
[23:19] <nigelvh> good to know
[23:20] <fsphil-laptop> they really need to be used along with a band pass filter
[23:20] <MLow> im going to switch the arduino over to 3v3
[23:20] <MLow> just for giggles
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[23:21] <fsphil-laptop> found it
[23:22] <fsphil-laptop> my chaos method of organisation wins again. sorta
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[23:23] <MLow> you cant see
[23:24] <MLow> but behind that laptop screen is a nest of parts/boxes/esd sleeves
[23:24] <MLow> mix of red boxes, digikey
[23:26] <fsphil-laptop> half my room was full of boxes so I recently dumped them all, started trying to organise the bits
[23:26] <fsphil-laptop> it's sort of working
[23:27] <MLow> i want to build a cabinet, since last year
[23:27] <MLow> in my mind i see a drawer for each component and value
[23:28] <fsphil-laptop> I had a similar plan. it ended up being one drawer for all the bits :)
[23:28] <nigelvh> That's a lot of drawers.
[23:28] <nigelvh> I use bead boxes, with like 24 compartments each, and put bits in those.
[23:29] <BrainDamage> I have a 120 drawers system
[23:30] <BrainDamage> I constantly cba to sort the parts and end up putting all spares in a bag
[23:30] <fsphil-laptop> hmmm... my module isn't tx'ing at all
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[23:34] <fsphil-laptop> curious
[23:34] <nigelvh> Seems murphy is out in force today.
[23:35] <Lunar_Lander> yeah
[23:36] <Lunar_Lander> but better that than the one U2 guy who had two feet pressed in his face (in the "numb" video)
[23:36] <nigelvh> I'm not familiar, but that does sound like it stinks (ba dum psh)
[23:36] <Lunar_Lander> yea
[23:37] <nigelvh> In not today news, I got my packet stuff working on my old 70cm AM transmitters last night. (which I'm going to promptly replace when my new ones come in the mail)
[23:38] <Lunar_Lander> yea
[23:38] <fsphil> do you get many people doing 70cm AM there?
[23:40] <nigelvh> No, these are just what we've used for the past few years for our balloons because they're reasonably high power and they're cheap.
[23:40] <nigelvh> about 10bucks and 300-500mw depending on the phase of the moon.
[23:40] <fsphil> lol
[23:41] <fsphil> more than enough
[23:41] <MLow> 3v3 and no luck
[23:41] <nigelvh> Yes, but they're not terribly frequency stable, even at room temperature, so I'm not all that fond of them.
[23:42] <nigelvh> Also, damn.
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[23:42] <MLow> im kinda at a loss again
[23:43] <fsphil> do you have any more breadboard?
[23:43] <fsphil> I've seen breadboard do funky things
[23:44] <Lunar_Lander> breadboard can have high capacitance my professor says
[23:45] <MLow> ive got another one yes
[23:45] <MLow> these are 80$ 3M ones tho
[23:45] <MLow> id expect them to be good quality :(
[23:47] <MLow> really gotta redo the whole thing on another breadboard :(
[23:49] <fsphil> Lunar_Lander, yea - I don't have to put any capacitors onto the crystal for the avr
[23:49] <Lunar_Lander> yea
[23:49] <fsphil> when it's on breadboard
[23:51] <fsphil-laptop> I'm not even getting a peep out of this one
[23:51] <fsphil-laptop> grrr
[23:52] <fsphil-laptop> I may have broken it
[23:52] <MLow> tie en to 5v?
[23:52] <MLow> kerchunk it
[23:54] <fsphil> will try that next. don't like having it on too long, it gets fairly warm
[23:57] <fsphil-laptop> ah
[23:57] <fsphil-laptop> we get signal
[23:59] <fsphil> and gone again
[00:00] --- Tue Feb 7 2012