highaltitude.log.20120903

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[01:45] <griffonbot> Received email: PhilipM "[UKHAS] NASA Open Source"
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[05:55] <griffonbot> @daveake: Some photos from the CLOUD6 flight - http://t.co/Iw8rsRcf #UKHAS [http://twitter.com/daveake/status/242501024286384129]
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[06:27] <daveake> wb #10 :)
[06:46] <number10> XD
[06:46] <UpuWork> How are you ?
[06:47] <daveake> fine. you?
[06:47] <daveake> I've had trouble finding small wound components at the local store, so they've sent me on an induction course
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[07:15] <UpuWork> I just read that daveake
[07:15] <UpuWork> very funny
[07:15] <daveake> :)
[07:15] <daveake> Got some decent shots from cloud's camera
[07:15] <UpuWork> I've told you before not to make me lol at work, it makes people realise I'm not doing any actual work
[07:15] <daveake> e.g. http://www.flickr.com/photos/daveake/7919730606/in/photostream/
[07:15] <daveake> lol
[07:15] <UpuWork> that looks like a front
[07:16] <daveake> lots of cloud in general
[07:16] <UpuWork> nice picture
[07:16] <UpuWork> looks like a wall of cloud though
[07:16] <daveake> yep
[07:16] <daveake> more photos there in the set now
[07:16] <UpuWork> unfortunately we don't get the weather like greece
[07:17] <daveake> nope
[07:17] <daveake> those were great photos
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[07:17] <daveake> They get the greek skies; we just get the tragedy
[07:17] <UpuWork> http://www.flickr.com/photos/daveake/7915672586/in/set-72157630074184822/
[07:18] <UpuWork> that needs the caption "oh fuck its landed on someones car I'm out of here"
[07:18] <UpuWork> http://www.flickr.com/photos/daveake/7915652898/in/set-72157630074184822/
[07:18] <daveake> lol
[07:18] <UpuWork> haha
[07:18] <daveake> my favourite shot
[07:18] <UpuWork> english surburbia when HAB COMES TO TOWN
[07:18] <daveake> just another day in that village
[07:19] <daveake> lol
[07:19] <UpuWork> glad they were ok about it
[07:19] <UpuWork> did you have to answer lots of questions ?
[07:19] <daveake> I was about where they were when it landed
[07:19] <UpuWork> what you shold have done is laid Mark on the ground
[07:19] <daveake> In fact, you can see the 4x4 just beyond them
[07:20] <daveake> So I must have been closer as I was walking whilst taking photos
[07:20] <UpuWork> knocked on the door and gone, we've just flown this australian from Oz and he's landed in your garden
[07:20] <daveake> lol
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[07:20] <daveake> "We need to revive him - do you have any Fosters?"
[07:20] <UpuWork> haha
[07:21] <daveake> That Teddy is an ice-breaker
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[07:21] <daveake> I mean, hanging from his chute over the side of a car, facing the front door. You couldn't make that up
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[07:22] <UpuWork> nope
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[07:23] <costyn> morn
[07:23] <daveake> morning
[07:24] <costyn> daveake: so the tracker in the pink payload above the bear was supposed to cut him down right?
[07:24] <daveake> yep
[07:24] <costyn> or cut the bear down at command from the ground?
[07:25] <UpuWork> thats the one
[07:25] <daveake> Hence the "bad internet" that cut the video at launch ... we were making sure non of you saw the chute over the bear, so it would be a surprise when he cut free
[07:25] <costyn> :)
[07:26] <costyn> funny, it's becoming a spectator sport if you're doing these kinds of things for your audience :)
[07:26] <daveake> and why he had his own tracker, inside his head with a battery down his arm, the ground plane through his arms and aerial down one leg :D
[07:26] <costyn> really cool that :)
[07:26] <daveake> Well the aim was to test Darkside's cutdown
[07:26] <MrScienceMan> dont you know? bears cant fly
[07:26] <MrScienceMan> :)
[07:27] <UpuWork> oh trust me they can :)
[07:27] <daveake> But I didn't want to cut everything free from the balloon, so we came up with the idea of dropping something from the main flight
[07:27] <MrScienceMan> bears are dangerous as they are
[07:27] <MrScienceMan> dont make them fly
[07:27] <costyn> MrScienceMan: :)
[07:27] <daveake> I bought Ted at the Smithsonian in May last year, before my first flight, with the aim of flying him sometime
[07:28] <costyn> daveake: he came with the spacesuit & everything?
[07:28] <daveake> yep
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[07:28] <daveake> Weighed 200g
[07:28] <daveake> I removed some stuffing and some heavy beads that weighed his bum down
[07:29] <daveake> So even with Upu's tracker added, with battery (single AA) and aerial, he was only 150g after
[07:29] <daveake> Pix from the operation (I can make these public now!) - http://imgur.com/a/b2hgS
[07:30] <costyn> looks like you're making some sort of cyborg
[07:30] <daveake> :)
[07:31] <daveake> The cutdown failed because of interference from the video (yes, we did test for that before, but obviously not well enough)
[07:31] <daveake> But if it had worked, he wouldn't have landed here - http://www.flickr.com/photos/daveake/7915741074/in/set-72157630074184822/
[07:31] <costyn> what kind of videocamera was it? one of those keychain fobs?
[07:31] <daveake> Kodak ZX1
[07:32] <daveake> It's fine in a normal payload
[07:32] <daveake> But obviously this one was receiving
[07:32] <daveake> Or trying to
[07:32] <costyn> right
[07:32] <daveake> I did offer to wrap it in foil but DS said "not necessary" :p
[07:33] <costyn> heh
[07:33] <costyn> daveake: so you didn't manage to mount the 817 in a DIN slot in your 4x4?
[07:34] <daveake> Not in time, no
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[07:34] <daveake> But DS wanted to play with it to Tx, so it was better closer to him
[07:34] <daveake> Normally it'd be in the dash in autotune mode
[07:34] <daveake> So no need to touch even
[07:35] <costyn> ok
[07:35] <daveake> This flight was a test for the car set-up too, before everything gets installed properly
[07:36] <costyn> daveake: you're almost there: http://www.teampolizeihq.com/images/backgrounds/bg_m5.jpg
[07:36] <costyn> just a few more screens :)
[07:36] <daveake> haha
[07:36] <UpuWork> that is a HABMobile
[07:36] <daveake> Yeah, and the HORUS boys have some impressive setups
[07:36] <costyn> (that's the guy who drove from NY to LA in like 32 hours in an M5
[07:41] <Penfold> that's pretty serios
[07:43] Action: Penfold grumps. Dang, So close. I can get the laptop here to talk to the borip_server at home, but borip_server.py seems not to be picking up the right libs. *sigh*
[07:44] <Gadget-Work> Penfold, you got a dongle yet ?
[07:44] <Penfold> gadget-work - plugged in to home server
[07:44] <Penfold> :D
[07:46] <Penfold> have installed gr-baz from https://launchpad.net/~roman-moravcik/+archive/gnuradio but it doesn't have a borip_server.py, and grabbing it from what I believe is the matching source tree doesn't work
[07:47] <Penfold> s/it/either of the two copies/
[07:47] <Penfold> ImportError: /usr/lib/x86_64-linux-gnu64/libgnuradio-baz.so.0: undefined symbol: _ZTI13gr_sync_block
[07:47] <Penfold> *sigh*
[07:49] <daveake> Blimey, you have to scroll a long way down the record table these days to insert 38.5km :p
[07:49] <Penfold> hehehe
[07:49] <daveake> This time last year that would have thrashed the record; now it's #21
[07:50] <UpuWork> well 100g balloon will get you 25km :)
[07:50] <UpuWork> 21st lol
[07:50] <daveake> #62 for 100g then :)
[07:51] <costyn> for debugging the GPS with soft-serial, can I use the rx/tx of a 5v FTDI? Or do I need a level converter?
[07:52] <costyn> (on a 3.3v pro mini)
[07:52] <daveake> You'll need resistors to stop 5V doing any harm at the Arduino
[07:53] <UpuWork> s/Arduino/GPS
[07:53] <UpuWork> oh
[07:53] <UpuWork> on a 3.3v you can plug the 3.3v GPS straight in
[07:53] <UpuWork> I'm not reading this right sorry ignore me
[07:54] <costyn> )
[07:54] <costyn> :)
[07:54] <UpuWork> you can plug the TX of the 3.3v Arduino into the 5V RX of the FTDI
[07:54] <UpuWork> Which should be fine for debugging
[07:54] <UpuWork> just don't plug the 5V TX into the 3.3v RX
[07:54] <Gadget-Work> Penfold, I got rtl-tcp working :)
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[07:55] <costyn> UpuWork: ah ok :) clever thanks
[07:56] <costyn> of course I just realized I can connect the 3.3 FTDI rx/tx to the soft-serial ports after having used it to program the pro mini
[07:59] <griffonbot> Received email: Radim Mutina "[UKHAS] Slovakia Launch Announcement - STS-1 (Saturday 8-SEP-2012)"
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[08:05] <daveake> Landing spot - https://maps.google.co.uk/maps?q=51.184036,+-0.698319+&hl=en&ll=51.183903,-0.698297&spn=0.001639,0.003422&sll=51.183869,-0.69794&sspn=0.001639,0.003422&t=h&z=19
[08:05] <daveake> We were parked about where that right-most car is of the group of 4
[08:05] <daveake> So we had a good view :)
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[08:08] <costyn> daveake: have you seen your payload come down before under chute?
[08:08] <Penfold> Gadget-Work: heh. I suppose that's an alternative. WHat've you got talking to it at the other end?
[08:09] <daveake> Upu and I saw one coming down but it went behind trees and we lost sight
[08:10] <daveake> It was 300m or so away
[08:10] <Gadget-Work> Penfold, gqrx
[08:11] <costyn> pretty cool then that this was so close :)
[08:11] <x-f> daveake, will you publish some video highlights from the cutdown box?
[08:11] <UpuWork> Darkside is doing a talk on it at the conference
[08:11] <UpuWork> we'll be streaming it
[08:12] <Darkside> oh yeah
[08:12] <Darkside> i have a talk to rwrite
[08:12] <Darkside> >_>
[08:13] <daveake> x-f Yeah I'm going through all the footage today
[08:13] <x-f> cool, thanks
[08:13] <daveake> costyn it was part cool and part "oh shit what's it going to hit?"
[08:14] <costyn> hehe :)
[08:14] <costyn> yea can imagine in the middle of a village
[08:14] <daveake> I could see that Ted had landed in a garden, then cloud went into a tree and the main chute came down right in front of me
[08:15] <daveake> Fortunately both families were happy :)
[08:15] <daveake> Having a teddy bear helped :D
[08:18] <number10> did it help that darkside leged it
[08:19] <Penfold> Gadget-Work: doesn't work on OS X
[08:19] <Penfold> :(
[08:19] Action: Penfold is SOOOOOOO close :D
[08:21] <Gadget-Work> What you using on OSX then ?
[08:21] <daveake> number10 Probably :)
[08:22] <daveake> So, I wonder how the predictions are for next weekend .. :p
[08:26] <costyn> daveake: take 2 on cutdown of BEAR? :)
[08:26] <daveake> Well we need to stop the interference
[08:27] <daveake> And we may add a GPS to that board, so it can cutdown at 35km say if no message by then
[08:28] <Gadget-Work> Penfold, what SDR are you running on osx ?
[08:28] <daveake> Another possibility is that I get Bear to cut himself down, based on altitude, and we use Darkside's cutdown to release the main payload
[08:33] <Penfold> Gadget-Work: HDSDR - via http://www.alain.it/2012/07/15/sdr-on-mac-the-easy-way/
[08:33] <Penfold> very nice little package
[08:33] <Penfold> (comes with a bundled borip_server, but you can override)
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[08:38] <Penfold> bah
[08:38] <Penfold> ImportError: No module named borip_RTL
[08:38] <Penfold> well, that's a different error
[08:39] <Penfold> I suspect I may have to build the lot from scratch on the ubuntu box, which I really don't wanna
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[08:40] <Gadget-Work> Penfold, just build it for RaspberryPi instead ;)
[08:41] <Penfold> haha
[08:41] <Penfold> that requires a RPi
[08:41] <Penfold> which I don;t have yet :D
[08:42] <fsphil> they're easy to get now :)
[08:43] <fsphil> speaking of, spotted this on had: http://www.cl.cam.ac.uk/freshers/raspberrypi/tutorials/os/
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[08:48] <Penfold> nice
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[09:12] <griffonbot> Received email: John Graham-Cumming "Re: [UKHAS] Slovakia Launch Announcement - STS-1 (Saturday 8-SEP-2012)"
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[09:22] <daveake> Hah, the downward-facing video camera landed upside-down on the car, and caught a pic of cloud5 coming in to land - http://i.imgur.com/GwPG4.png
[09:23] <Penfold> you do seem to have had something of a perfect storm of a landing, albeit perhaps a bit more exciting than you might want
[09:23] <costyn> daveake: nice
[09:23] <daveake> Well, if you're going to land in a populated area, then in a garden (or two) isn't bad :)
[09:23] <costyn> Penfold: yea there were several times where the predictor was pointing to a nice football field at the edge of the village. would've been perfect
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[09:24] <daveake> You can see the power line (curvy because of the way the camera works) and the nylon line going over it
[09:24] <daveake> either that or the power line got moved by the cloud payload :D
[09:25] <Penfold> daveake: least you had a working chute, or you'd have been calling Autoglass for them :D
[09:25] <daveake> Well of course without a chute it'd have landed somewhere else, but yes :)
[09:25] <costyn> daveake: I think that second bit. I see no artefacts due to motion in any other parts of the image
[09:25] <daveake> If you're going to land on a car, do ith with a nice chute and a soft toy :D
[09:26] <daveake> yes I think so to now
[09:26] <daveake> too
[09:26] <griffonbot> Received email: Ed Moore "Re: [UKHAS] NASA Open Source"
[09:26] <eroomde> ok so away for36 hrs
[09:27] <eroomde> how did the bear flight go?
[09:27] <costyn> rolling shutter can give some very cool pictures though
[09:27] <daveake> eroomde Interference stopped the cutdown
[09:27] <eroomde> but it did not intefere with the deputy
[09:27] <eroomde> oh no-oh
[09:27] <daveake> and the bear tracker had Upu's power-save code with the known gps issue, which hit
[09:28] <daveake> lol
[09:28] <daveake> But otherwise good
[09:28] <eroomde> well, time for round 2 b4 conf?
[09:28] <daveake> Oh and it landed in a village, on a parked car, with chute in the next garden and another payload in a tree
[09:28] <Upu_M0UPU> yes applying "it'll be reet" wasn't a good move
[09:28] <daveake> Hope so
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[09:28] <eroomde> i must say we sometimes had to throw 40W down a yagi for our uplinks
[09:28] Nick change: Upu_M0UPU -> UpuWork
[09:28] <daveake> We're planning tet 2 now
[09:29] <daveake> test
[09:29] <eroomde> cool
[09:29] <daveake> Next shot from the video of cloud coming in to land - http://i.imgur.com/PrLJA.png
[09:29] <eroomde> well, i went for a long walk and had a bbq
[09:29] <eroomde> which was v good
[09:29] <UpuWork> thats ace Dave
[09:29] <eroomde> ah nice
[09:29] <daveake> eroomde You need to see how Ted landed ....
[09:29] <daveake> http://www.flickr.com/photos/daveake/7915112666/in/set-72157630074184822/
[09:29] <eroomde> show me
[09:29] <daveake> Facing the front door of the house
[09:30] <eroomde> eeeek
[09:30] <eroomde> they must have been surprised
[09:30] <daveake> no damage
[09:30] <daveake> Thrilled, actually!
[09:30] <eroomde> yes, thank god for non brass-ros antennas
[09:30] <costyn> yes
[09:30] <daveake> thin wire in a fluffy bear
[09:30] <eroomde> did they enjoy the pics?
[09:30] <UpuWork> best think to land on a car really
[09:30] <UpuWork> thing
[09:30] <daveake> and the grey box had a coax antenna
[09:30] <daveake> yes, we showed them some, and I gave them my blog addreess
[09:31] <daveake> I knocked on the door, stood in the way, and when it opened said "I seem to have flown this (moving and pointing) into your garden"
[09:32] <eroomde> what did they say?
[09:32] <daveake> He hought it was great
[09:32] <daveake> I thought though his little girl was going to say "oh i luv that bear can i have it?"
[09:32] <daveake> And I'd have had to say yes
[09:32] <eroomde> :)
[09:32] <UpuWork> lol
[09:33] <UpuWork> you'd have had to do some surgery on it :)
[09:33] <daveake> I know
[09:33] <gonzo_> would she habve been upset by the postmortum to get the tracker out of him>?
[09:33] <eroomde> there was a tiny wee girl at the bbq yesterday, daughter of friend's friends
[09:33] <daveake> I'm sure she would
[09:33] <eroomde> when they came to leave she said
[09:33] <eroomde> 'i really loved the party. and i didn;t cry. but i didn't like the doggies'
[09:33] <eroomde> very matter of factly, like she was answering a feedback survey
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[09:34] <costyn> eroomde: heheh :)
[09:34] <gonzo_> young kids are refreshingly direct and honest
[09:34] <eroomde> i also forgot that imaginary balls are ok
[09:35] <eroomde> when she was pretending to be a doggy
[09:35] <eroomde> i was trying to find an actual ball for her to retrieve
[09:35] <gonzo_> ah, glad I waited for your last line there before replying!
[09:36] <eroomde> people have been arrested for saying less than that
[09:36] <costyn> haha
[09:37] <gonzo_> my inner dialogue runs like a carry on film
[09:37] <eroomde> everyone needs this every morning
[09:37] <eroomde> http://www.youtube.com/watch?v=PLHj-eekdNU
[09:37] <eroomde> i would have it as my alarm clock on full volume if i didn;t have neighbours
[09:37] <eroomde> the ending from about 6:45 is so spectacular you have to dance around conducting
[09:39] <costyn> something wrong with my flash; i hear the music but get no image nor controls
[09:40] <Penfold> don't need the image :D except to observe just how economical a conductor Barenboim is :D
[09:40] <costyn> eroomde: this would be my choice http://www.youtube.com/watch?v=FWdemE2FOvA
[09:41] <eroomde> Penfold: yes it's incredible
[09:41] <eroomde> the final few crashing chords he's just standing there like a statue
[09:41] <eroomde> wait for it... wait for it... wait for it.... BAAAANG!
[09:41] <Penfold> with a sort of 'waiiiit for?. '
[09:41] <Penfold> yeah, exactly :D
[09:42] <Penfold> measure of how good the orchestra are, too
[09:42] <eroomde> yes incredible
[09:42] <eroomde> you can't do that with any old band
[09:42] <Penfold> *grin*
[09:43] <eroomde> it reminds me a lot of carlos kleiber
[09:43] <eroomde> he would sometimes just not conduct
[09:43] <eroomde> just stand and watch like a proud father
[09:43] <eroomde> a measure of the power of his reharsals really
[09:44] <Penfold> particularly those last few chords
[09:44] <Penfold> which are just 'yeah. I know you'll get these right.'
[09:44] <eroomde> yep
[09:44] <eroomde> put away your aiming conductor luke
[09:44] <eroomde> use the force
[09:45] <eroomde> there are section of this that, while just fun silliness, are quite astoundingly impressive conducting
[09:45] <eroomde> http://www.youtube.com/watch?v=IomRh4Wir2M
[09:45] <eroomde> kleiber is like a god
[09:46] <Penfold> I may actually have to grab the movements for that and make a DVD for my parents. Mum = huge DB fan :D
[09:47] <Penfold> appears to need the firsty movement joining together, mind.
[09:47] <eroomde> i like DB too
[09:47] <eroomde> but kleiber always leaves me speechless
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[09:52] <Penfold> also only 320p, so won't be fab on DVD
[09:53] <eroomde> i wonder if it exists officially somewhere
[09:53] <eroomde> presumably recorded by a tv company
[09:55] <Penfold> can't find it on amazon
[09:58] <number10> oops had my earphons in listening to that and someone asked me a question - aparently I shouted my reply
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[10:09] <eroomde> projector died at work
[10:09] <eroomde> charged with replacement, probably atv this time
[10:09] <eroomde> any advice on good 42-50" LCD displays?
[10:09] <eroomde> budget
[10:10] <UpuWork> One of my client bought a 50" for £950 recently
[10:10] <UpuWork> they are super cheap now
[10:11] <nick_> But if you get a TV then you can't turn it into an awesome outdoor cinema...
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[10:12] <G7PMO_Kev> Upu = Your circuit board from the Bear is pretty impressive, Arduino, RFM22, UBlox, Step Up, etc all on one board :)
[10:14] <UpuWork> thats big :) I've made a smaller one since then
[10:14] <UpuWork> not much smaller mind
[10:14] <UpuWork> but thx
[10:15] <G7PMO_Kev> :)
[10:15] <nick_> UpuWork: How did you design the antenna part of the PCB?
[10:16] <nick_> Was there an existing part for it?
[10:16] <UpuWork> you mean the chip antenna ?
[10:16] <UpuWork> or the rf one ?
[10:16] <nick_> rf
[10:17] <nick_> saranetel?
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[10:18] <UpuWork> confused are you on about the BEAR (actually PAVA) PCB ?
[10:18] <UpuWork> that didn't have a Sarantel on it
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[10:19] Nick change: soafee-chan -> spacekitteh
[10:19] <nick_> I meant on your GPS breakout board
[10:20] <nick_> Sorry, I assumed your PAVA had similar.
[10:20] <UpuWork> no PAVA used the chip antenna
[10:20] <nick_> OK
[10:20] <UpuWork> I did an Eagle library with all the parts I used
[10:20] <nick_> Cool
[10:20] <nick_> Can I steal it sometime?
[10:21] <UpuWork> https://github.com/upuaut/Eagle-Libraries
[10:21] <UpuWork> sure
[10:21] <UpuWork> Ava.lbr
[10:21] <UpuWork> sec let me check thats current
[10:21] <nick_> (I won't use it yet)
[10:22] <nick_> At the moment I have a board designed that the GPS breakout can plug into.
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[10:24] <UpuWork> well GIT isn't working again
[10:24] <UpuWork> but I think the only thing I've added recently is the Sarantel Active antenna
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[10:25] <G7PMO_Kev> Guys, what's the software running on the big screen here: http://www.flickr.com/photos/daveake/7915901300/in/set-72157630074184822/lightbox/ ?
[10:26] <UpuWork> Daves own software
[10:26] <daveake> It's a Windows app wot i rote
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[10:26] <G7PMO_Kev> ok, cool
[10:26] <daveake> Basically tells us where to go and where the balloon is
[10:26] <G7PMO_Kev> yup
[10:27] <daveake> and does the car position upload too
[10:27] <costyn> UpuWork: did you fix the RFM22b breakout? ;)
[10:27] <G7PMO_Kev> looks good
[10:27] <UpuWork> on my list of to do
[10:27] <UpuWork> I'm redoing it entirely
[10:27] <costyn> ah
[10:27] <UpuWork> as it doesn't fit on breakouts
[10:27] <costyn> the pin spacing you mean?
[10:27] <UpuWork> yep
[10:28] <daveake> btw it's not that big a screen - 8" diagonal
[10:29] <G7PMO_Kev> heheh, ok :)
[10:30] <gonzo_> big screens are good for running spacenearus
[10:31] <gonzo_> though look better with a workd map with satellite tracks
[10:31] <gonzo_> world
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[11:58] <Gadget-Work> http://www.esa.int/SPECIALS/Education/SEM6ZR4Y96H_0.html
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[12:27] <Gadget-Work> Penfold, are you using the zip'd version of HDSDR on that blog ?
[12:33] <Penfold> gadget: https://dl.dropbox.com/u/17744176/HDSDR%20OSX.zip
[12:33] <Penfold> only thing to note is you need to ensure that your mac will open unsigned apps
[12:33] <Penfold> if you're on ML
[12:35] <Darkside> ooh
[12:35] <Darkside> wat
[12:35] <Darkside> HDSDR works on OSX?
[12:36] <Darkside> big question tho: does it with witht the RTL dongles
[12:36] <Gadget-Work> Penfold, ok.
[12:36] <Penfold> Darkside: yes-ish :D
[12:36] <Gadget-Work> Darkside, I think thats a yes. Although I'm mainly interested in have the dongle on a server :)
[12:36] <Darkside> ish?
[12:37] <Penfold> Darkside: hard to telll in a house wirh foot thick stone walls and a crappy antenna, but I'm working on it. It certainly talks to the dongle and displays what looks like the right thing, just getting any signal out of the noise floor is tough where i am
[12:38] <Darkside> oh, does it need BorIP
[12:38] <Penfold> yes
[12:38] <Darkside> aww
[12:38] <Penfold> bundled with
[12:38] <Darkside> oh ok
[12:38] <Darkside> and gnuradio statically linked in, from the file size
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[12:38] <Penfold> yeah
[12:38] <Penfold> but all nicely done as a single mac app
[12:39] <Darkside> niice
[12:39] <Penfold> useful pro tip - if you open the App (view package contents), Contents/Resources/HDSDR is the HDSDR app itself, witghout autostarting a local borip_server first
[12:40] <Penfold> now, if I could START my remote borip_server? :D
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[12:44] <Darkside> hmm
[12:44] <Darkside> i cant set hte sample rate for the output sound card tho
[12:44] <Darkside> oh wait
[12:46] <Darkside> well
[12:46] <Darkside> this is awesome
[12:46] <Darkside> thanks Penfold :D
[12:47] <Gadget-Work> Darkside, is that with a local dongle ?
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[12:47] <Darkside> yes
[12:47] <Darkside> i might play with a remote device at some point
[12:48] <Darkside> also its using a very old version of wine
[12:48] <Darkside> the newer versions work much nicer with coreaudio
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[13:08] <SamSilver> nice tracker http://tracking.way.aero/gordonbennett/
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[13:09] <G7PMO_Kev> Guys how do I delete a file in Media Manager in the Wiki?
[13:09] <eroomde> SamSilver: what is being tracked?
[13:09] <SamSilver> 17 hotair balloons
[13:10] <SamSilver> opps 17 gas balloons
[13:10] <eroomde> kule
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[13:14] <eroomde> G7PMO_Kev: you might not have permission
[13:15] <eroomde> it's also wiki etiquette, like with accounting, to not delete stuff so it's there in the history.
[13:16] <jonsowman> if you accidentally uploaded a personal file or something, PM me the filename & I'll nuke it
[13:17] <G7PMO_Kev> ta jonsowman
[13:24] <fsphil> a .aero domain, first one I've seen
[13:24] <eroomde> oh oh oh where do i buy?
[13:27] <fsphil> $30/year at www.information.aero
[13:28] <fsphil> you could have abovethe.aero
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[13:28] <eroomde> was thinking just for work
[13:29] <gonzo_> mintchocolate.aero
[13:32] <fsphil> mmm
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[13:43] <daveake> You can have above.aero
[13:44] <daveake> or wayabove.aero probably :)
[13:44] <x-f> marslike.aero
[13:45] <Penfold> an.aero? would allow i.fancy.an.aero, i.could.murder.an.aero...
[13:45] <fsphil> no.aero
[13:45] <fsphil> thin.aero
[13:46] <eroomde> egyptianph.aero
[13:47] <gonzo_> if you are heeling chilli at alt, how aboyut an haban.aero ?
[13:47] <Penfold> niice
[13:47] <eroomde> or singing in carmen
[13:47] <eroomde> duel-use domain
[13:49] <x-f> or just wait a bit - ".Space domain registrations are planned for Q1 2013."
[13:49] <daveake> near.space
[13:49] <eroomde> aero.space
[13:49] <daveake> But not artin.space :D
[13:49] <x-f> that's evil :)
[13:50] <daveake> myofficehasno.space
[13:50] <eroomde> i might get some machine learning pun
[13:50] <eroomde> feature.space
[13:50] <eroomde> hilbert.space
[13:50] <eroomde> complex.space
[13:50] <eroomde> i dunno
[13:50] <gonzo_> white.space
[13:50] <BrainDamage> bar.space
[13:50] <Penfold> empty.space
[13:50] <Penfold> hack.space
[13:50] <gonzo_> pigs_in.
[13:50] <Penfold> gotta be done, that one
[13:51] <eroomde> <html></html>
[13:51] <eroomde> wasteof.space
[13:54] <Penfold> non.breaking.space? :D
[13:55] <fsphil> getouttamy.space
[13:55] <gonzo_> this is going to run and run!
[13:55] <eroomde> coffee just seems to make me tired nowadays
[13:55] <eroomde> i think maybe i should cut back
[13:56] <eroomde> knackered and it's 3pm after a weekend
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[13:56] <number10> chap at work years ago was getting very toered went to see doc who asked him how many cups he drank (10 or so) said that was reason
[13:57] <number10> tired
[13:57] <eroomde> yep
[13:57] <eroomde> that could be it
[13:57] <eroomde> i'm on usually 6-8 a day
[13:57] <gonzo_> change to tea
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[13:57] <gonzo_> less than 0.5 of the caffine
[13:58] <gonzo_> so you are going at a snail.space ?
[13:59] <eroomde> i was until that stopped me in my tracks
[14:00] <daveake> Take one last slug
[14:01] <eroomde> re earlier convo, i think we've settled on a LG 42LS5600 for the wee conference room
[14:01] <eroomde> lunchtime youtubeage will never ben the same
[14:02] <eroomde> be*
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[14:11] <fsphil> that's not a bad price
[14:11] <eroomde> indeed
[14:12] <eroomde> quite surprising
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[14:36] <costyn> SamSilver: I have a great-uncle (brother of my great-grandfather) who in 1910 won the Gordon Bennett race
[14:36] <eroomde> any vegetarians?
[14:36] <costyn> SamSilver: didn't know they still ran it
[14:37] <SamSilver> costyn: well done great uncle where was it from in 1910
[14:38] <costyn> SamSilver: Canada
[14:38] <costyn> SamSilver: http://en.wikipedia.org/wiki/Alan_Ramsay_Hawley#Gordon_Bennett_Race
[14:38] <SamSilver> snap
[14:39] <costyn> they flew hydrogen gas those days I see
[14:39] <SamSilver> http://www.google.co.za/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0CDgQFjAD&url=http%3A%2F%2Fwww.fai.org%2Fcomponent%2Fphocadownload%2Fcategory%2F1191-results%3Fdownload%3D4446%3A1910-gordon-bennett-results&ei=zMBEUMLZOMXNhAfhrIHIAw&usg=AFQjCNEToROZnzgXjGa4OqiPBP8JQ4tagQ
[14:39] <costyn> SamSilver: ah
[14:39] <SamSilver> bugger that for a lark H2
[14:39] <costyn> SamSilver: cool
[14:40] <daveake> H2 is great. For scaring Aussies.
[14:40] <SamSilver> I flew Hot air balloons for a few years and propane was always my friend that I kept ene eye on!
[14:41] <SamSilver> allways kept on the safe side of Mr Propane
[14:41] <costyn> was talking to a guy who wants to help me out on a next flight; ex-military, had his lower right leg blown off by IED. I was talking about hydrogen as an option in the future if He gets too expensive and he said 'well, Idon't like things that can go bang' :)
[14:42] <costyn> SamSilver: there's a safe side?
[14:42] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Slovakia Launch Announcement - STS-1 (Saturday 8-SEP-2012)"
[14:43] <SamSilver> Propane has some sneaky traits, it like creaping along the ground
[14:43] <SamSilver> likes
[14:45] <SamSilver> like this bit "After landing in the wilderness in Quebec, Canada they spent a week travelling back to civilization before they were able to send a telegram."
[14:45] <costyn> SamSilver: on that tracker page, when the green touches the blue, they touch land right?
[14:46] <costyn> SamSilver: I have lots of old documents at home and put together that wikipedia page. scanned in the photos from old magazines and pictures
[14:47] <SamSilver> I think the land profile is a bit wonky and not the land below them, more a line of site land profile
[14:47] <costyn> ok
[14:47] <SamSilver> touching down is not allowed
[14:48] <costyn> no thats what I thought :)
[14:49] <SamSilver> at hot air comps we have a lot of different goals and one of them is a "Gordon Bennett"
[14:50] <costyn> just flat out go as far as you can?
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[14:51] <SamSilver> yip
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[14:59] <SamSilver> costyn: i just found a pic of my balloon online http://www.aviationpics.co.za/morenews.asp?filename=164200664043.txt
[14:59] <SamSilver> the one with the red / white hearts
[15:00] <costyn> SamSilver: cool
[15:00] <costyn> SamSilver: I've been in a hot-air balloon twice; jumped out both times :)
[15:00] <SamSilver> lol i have "thrown" a few guys out
[15:02] <costyn> SamSilver: any guys with wingsuits?
[15:02] <costyn> SamSilver: (in which case I might know them)
[15:02] <SamSilver> nope
[15:02] <costyn> k
[15:02] <SamSilver> paul and gerry
[15:03] <costyn> SamSilver: nope. :)
[15:04] <SamSilver> paul was a visiting aussie and gerry chairman of our local para club
[15:04] <griffonbot> Received email: Radim Mutina "[UKHAS] Slovakia Launch Announcement - STS-1 (Saturday 8-SEP-2012)"
[15:04] <griffonbot> Received email: Radim Mutina "Re: [UKHAS] Slovakia Launch Announcement - STS-1 (Saturday 8-SEP-2012)"
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[15:06] <costyn> radim_OM2AMR: yes, you can trust the burst calc, but you can't trust a Superfloat 9000 (Hwoyee 1600)
[15:07] <costyn> radim_OM2AMR: what ascent rate are you going for?
[15:07] <radim_OM2AMR> costyn - ohh
[15:07] <radim_OM2AMR> we are planning for 5 m/s
[15:07] <costyn> radim_OM2AMR: ok, well just add extra weight to your neck-lift weights or "put a few extra squirts in"
[15:07] <radim_OM2AMR> is there any risk of float higher than with other balloons ?
[15:08] <costyn> radim_OM2AMR: it seems so yes, with the hwoyee 1600
[15:09] Action: costyn is trying to find the list on the wiki
[15:09] <radim_OM2AMR> costyn, so if I understand well, we should add some more gas to obtain calculated lift ? ;-)
[15:10] <daveake> No, it just seems more prone to floating if you underfill
[15:10] <costyn> radim_OM2AMR: no, the lift should be accurate as shown by the calculatr, but if you aren't sure about the neck lift being exactly right, adding more gas is better than adding less
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[15:10] <daveake> See http://www.ukhas.org.uk/general:flight_data for data from actual flights
[15:11] <griffonbot> Received email: Tomasz Brol "Re: [UKHAS] Slovakia Launch Announcement - STS-1 (Saturday 8-SEP-2012)"
[15:11] <costyn> daveake: that's what I was looking for :)
[15:11] <daveake> Yeah, wel as one of the few people that bother updating it :p I should know :)
[15:11] <costyn> daveake: :)
[15:11] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Slovakia Launch Announcement - STS-1 (Saturday 8-SEP-2012)"
[15:12] <costyn> can't we make it automated, all the info is in the payload document isn't it?
[15:12] <costyn> radim_OM2AMR: Upu's email has a nice summary
[15:12] <UpuWork> oh you're here hi Radim :)
[15:13] <radim_OM2AMR> daveake, thanks, I saw it before, but I'm unsure, what caused late or early burst
[15:13] <radim_OM2AMR> UpuWork, yes, I'm here ;-)
[15:13] <UpuWork> aim for higher ascent rate than 5m/s
[15:13] <UpuWork> its too border line
[15:13] <UpuWork> doesn't have to be much over that
[15:13] <daveake> If you're aiming for 4.something, expect a float
[15:14] <UpuWork> Most people get it wrong on the first launch I did
[15:14] <costyn> UpuWork: or be like Tim and not measure neck-lift at all :)
[15:14] <daveake> UpuWork's flight was saved by a famous person
[15:14] <UpuWork> Ah Tim :)
[15:14] <UpuWork> Indeed
[15:14] <Penfold> float = not make it high enough to burst?
[15:14] <daveake> Indeed
[15:14] <UpuWork> Penfold it will burst eventually
[15:14] <daveake> Runs out of lift
[15:14] <costyn> I'm going to see if I can find his telemetry and see what ascent rate it was
[15:14] <Penfold> just not in any useful manner :D
[15:15] <UpuWork> but one managed to make it from California to the Med ...
[15:15] <costyn> Penfold: well 24 hours later when it's over Ukraine
[15:15] <Penfold> *grin*
[15:15] Action: costyn has to go ... ttyl!
[15:15] <UpuWork> make sure you know how much your filler pipe weighs
[15:15] <UpuWork> so you can subtract that , Dave has a pen mark on his where its 100g ?
[15:16] <costyn> UpuWork: (and tht you actually use a filler pipe - which I learned)
[15:16] <daveake> 540g
[15:16] <UpuWork> Do you have a pic of yours daveake ?
[15:16] <daveake> No
[15:16] <UpuWork> ok
[15:16] <radim_OM2AMR> UpuWork, great info based on experience ! SI unit squirt :-D
[15:16] <daveake> You want to see 540g scribbled on some hose?
[15:17] <UpuWork> lol
[15:17] <daveake> Steve's filler is in the wiki
[15:17] <UpuWork> I think it should be adopted Radim :)
[15:17] <UpuWork> its unlikely you can put too much gas in
[15:17] <UpuWork> but you sure as hell can put too little in
[15:17] <daveake> http://www.ukhas.org.uk/guides:fill_tube?s[]=filler
[15:17] <UpuWork> yep
[15:18] <UpuWork> and then weigh your filler tube so you know when its off the ground the weight you have
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[15:29] <radim_OM2AMR> nice, I will build such filler till friday :-)
[15:31] Action: Penfold yays. Can go home and play with SDR dongle some more!
[15:31] <Penfold> later, folks
[15:31] <fsphil> enjoy
[15:31] <Randomskk> whew, back from EMF.
[15:32] <Randomskk> more people should /definitely/ go next time
[15:32] <Randomskk> it was amazing
[15:32] <Darkside> Randomskk: so what was the story with the launch
[15:32] Action: danielsaul echoes Randomskk
[15:33] <Randomskk> we launched a pico that was 50g in a padded envelope to come down the near side of the M25, it went to 25k instead of calculated 15k and landed inside london after the pcb came out of the duct taped envelope and fell faster than expected.
[15:33] <Randomskk> is pretty much the story
[15:33] <Darkside> you launched without a parachute though
[15:33] <Randomskk> it was a pico payload
[15:33] <Darkside> still
[15:33] <Darkside> it wasn't that pico
[15:34] <UpuWork> how much did it weigh ?
[15:34] <Randomskk> UpuWork: 50g all in
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[15:34] <Darkside> i think we're almost down to 20g now
[15:34] <UpuWork> well should have had a parachute on it but I suspect you know that
[15:34] <Darkside> or jhas jcoxon beat that
[15:34] <UpuWork> anyway lets move along
[15:34] <Randomskk> I don't think it would have come down anything like that quickly if it hadn't left the padded envelope
[15:35] <Darkside> it was a 100g balloonn, right?
[15:35] <Randomskk> yes
[15:35] <Darkside> ok
[15:35] <Darkside> those are known to burst high
[15:35] <Randomskk> are they really.
[15:35] <Darkside> hell, steve had one do the same thing a few days before, didn't he?
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[15:35] <Darkside> we've had them burst many km above the expected altitude before
[15:35] <Darkside> and steve had one burst at 25km i hink
[15:36] <Randomskk> not sure where you're going with that
[15:36] <Darkside> i mean
[15:36] <Darkside> it's happened before
[15:36] <Darkside> its something to think about, and something to model
[15:36] <Darkside> what if it does the same as these other launches did
[15:36] <Darkside> where is it going to land
[15:36] <Darkside> sure, it might not do the same thing
[15:37] <Darkside> but in this case it did
[15:37] <Randomskk> to be honest I had no idea you'd used the 100g balloons before and steve's and mine were the first UK ones
[15:37] <Randomskk> I wouldn't have said it was common knowledge
[15:37] <danielsaul> Steve's burst at ~18km
[15:37] <Randomskk> also ^
[15:37] <Darkside> oh did it
[15:37] <Darkside> ahh
[15:37] <Darkside> so we did launches in jan this year, where we used 100g's
[15:37] <Darkside> 2 launches, one day after the other
[15:38] <Darkside> first one we expected ot burst at 15km, it burst at 22km
[15:38] <Darkside> the next launch, we made the assumption that it'd do the same thing
[15:38] <Darkside> and it did
[15:38] <Randomskk> that's pretty curious in itself.
[15:38] <Darkside> hmm
[15:38] <Darkside> wait
[15:38] <Darkside> these were 200g's
[15:38] <Darkside> sorry
[15:38] <gonzo_> has steve mentioned if he intends to add 100gm balloons to his shop?
[15:38] <Randomskk> ..I see
[15:38] <Darkside> same issue though
[15:38] <Randomskk> different balloons
[15:38] <Darkside> the expected burst alt was waaaaaaaaay less
[15:39] <Darkside> and they were both hwoyees
[15:39] <Darkside> i think in general we shouldn't trust hwoyee's quality control
[15:39] <Randomskk> you take your chances.
[15:39] <Randomskk> it was a well filled 100g latex balloon that went 167% higher than was expected
[15:39] <Darkside> i guess we need to do more 100g launches
[15:39] <Darkside> and see if the same thing happens
[15:39] <Darkside> more data points on the graph
[15:40] <Randomskk> indeed
[15:40] <Randomskk> though with some caution wrt the ANO exemption I think
[15:40] <Randomskk> I am dubious that the burst diameter was <2m
[15:40] <Randomskk> despite being specified for 1.8m
[15:40] <Darkside> yeah
[15:41] <Darkside> i ver much doubt either youre or steves were <2m
[15:41] <Darkside> even with steves tracker in the balloon neck thing
[15:41] <Randomskk> our tracker was taped onto the neck, fwiw.
[15:41] <Darkside> ahh ok
[15:41] <Darkside> his was *in* the neck
[15:41] <Darkside> if you haven't seen the pics
[15:41] <Randomskk> if anything we were expecting the bottom of the balloon to act as a streamer
[15:41] <UpuWork> Darkside it was amazing the parachute was inside tbe balloon
[15:41] <Darkside> UpuWork: yeah i've seen that
[15:42] <Darkside> the BOM's automated launches do the same thing here
[15:42] <Darkside> they have plastic parachutes inside the balloons
[15:42] <UpuWork> http://www.flickr.com/photos/16828840@N07/7902498900/in/set-72157631341732946
[15:42] <Darkside> http://rfhead.net/gallery/2011-06-14_Vaisala_G_Series_DigiSonde/Pages/1.html
[15:42] <Darkside> i'd like to re-use / make some of the plastic parachutes
[15:43] <Darkside> they'll probably cause less harm to the balloon
[15:43] <Darkside> also i'm pretty sure the parachutes inside the met balloons are biodegradable
[15:53] <G7PMO_Kev> re fill tube "Shot showing internal spacer - about 15mm thick super-glued to both the outer and inner tubes." BUt it only talks about one Tube?
[15:53] <UpuWork> the balloon necks are very wide
[15:53] <UpuWork> so generally its a small host pipe sized tube inside a larger drain pipe sized one
[15:53] <Darkside> we use adaptors
[15:53] <G7PMO_Kev> ohhh, the 'inner tube' is the filler tube, I see
[15:54] <Darkside> like, we use hose pipe and hose plugs/sockets for most things
[15:54] <Darkside> benefit being they pop off with overpressure
[15:54] <G7PMO_Kev> I thought it ment 2 x PVC drain pipe tube
[15:54] <Darkside> overpressure being way more than is in the balloon
[15:54] <Darkside> more if you kink the balloon neck or something, the connector pops off instead of the pipe doing bad things
[15:58] <DrLuke> "Flying a GoPro : 2 squirts." made me chuckle
[15:59] <UpuWork> :)
[16:00] <Darkside> i'm probably just goign to dump the entire tank into my balloon
[16:00] <Darkside> put an entire 3.6m^3 tank into a 1600g
[16:00] <daveake> Darkside What tracker will you be using?
[16:01] <daveake> I'm using one of Upu's little boards
[16:01] <Darkside> daveake: probably a micronut and AAAs
[16:01] <daveake> cool
[16:01] <Darkside> though if i can, i'll rig up an osiris board with 2xAAs and a GPS
[16:01] <Darkside> and have it be able to cut itself down in case of a float
[16:02] <daveake> ok
[16:02] <Darkside> dunno how the mechanics of that will work yet
[16:02] <Darkside> oh wait, i think i know how i can do it
[16:02] <Darkside> though it will likely leave the payload hanging at an odd angle on descent
[16:02] <Darkside> hrm
[16:03] <Darkside> annoying mechanical problems
[16:03] <Darkside> if i didn't care about the parachute it'd be easy
[16:03] <Darkside> but i'd rather my payload didn't leave a crater
[16:04] <DrLuke> so guys, I'm about to create a 0.9V-3.3V to 3.3V DC-DC-Converter board. One would cost roughly 5¬ (although I can't yet tell the definite price), would anybody want one?
[16:05] <Darkside> DrLuke: we already do this in many payloads
[16:05] <Darkside> DrLuke: what chip are you using
[16:05] <DrLuke> TPS61016
[16:05] <Darkside> thats the 3.3v locked one, right?
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[16:06] <DrLuke> yep
[16:06] <Randomskk> have you made it and got it actually working reliably over a range of loads yet? :P
[16:06] <Darkside> its cheaper to use the TPS61000's
[16:06] <Darkside> wait
[16:06] <Darkside> not 61000's
[16:06] <Darkside> UpuWork: whats it?
[16:06] <Darkside> TPS62100 i think
[16:06] <DrLuke> no randomskk, I didn't order the pcb yet
[16:06] <Darkside> TPS61200
[16:06] <DrLuke> just wondering if anybody would like one so I can order more, makes everything a bit cheaper
[16:06] <Darkside> DrLuke: we use TPS61200's and they work very well
[16:06] <Darkside> they are variable output voltage, but its 2 resistors to set that
[16:07] <Darkside> and they work down to 0.82v input voltage, with about 100mA of load
[16:07] <DrLuke> well, I don't need a variable one
[16:07] <DrLuke> well, the TPS61016 also works down to 0.8V, but it states that it's only guaranteed to actually start up at 0.9V
[16:07] <Darkside> yes
[16:08] <Darkside> DrLuke: but its cheaper to buy the variable ones
[16:08] <Darkside> or so i found anyway
[16:08] <DrLuke> well, I'm ordering at farnell, and the fixed ones cost 2,54¬ each for 10 pieces
[16:08] <Darkside> the TPS61016 is in a nicer package though
[16:09] <Darkside> ahh
[16:09] <Darkside> the TPS61200 can handle mor eoutput current
[16:09] <DrLuke> 200 mA, yes
[16:09] <DrLuke> well, I'll guess I'll just make 10 of them
[16:09] <Darkside> hmm wait, maybe it won't
[16:09] <Darkside> thats very interesting
[16:09] <DrLuke> ?
[16:09] <Darkside> just looking at the 61016
[16:10] <Darkside> it might be a suitable replacement for the 61200
[16:10] <Darkside> to get away from the QFN package
[16:10] <DrLuke> http://i46.tinypic.com/o7n5vq.png
[16:11] <Darkside> erm
[16:11] <Darkside> wheres your input capacitor?
[16:11] <Darkside> and avoid running anything under the IC
[16:11] <Darkside> go have a look at TI's reference designs to get an idea of the layout
[16:12] <Darkside> aaaaaaaaand L1 is probably not going to be in that package
[16:12] <DrLuke> it is
[16:12] <Darkside> at the right current capacity, etc?
[16:12] <Darkside> most of the powerchoke stuff has weird packages
[16:12] <Darkside> well, mroe square anyway
[16:13] <Darkside> just looking at the TI eval board
[16:13] <Darkside> yeah
[16:13] <Darkside> their inductor is way bigger
[16:14] <Randomskk> yea I had all sorts of fun with undersized inductors for this, but it can work in that package okay
[16:14] <Darkside> they use a 10uH inductor, rated at 2A
[16:14] <Randomskk> so long as it's reasonably high power
[16:14] <Randomskk> Darkside: you can get little wirewound ones
[16:14] <Darkside> with that high rating?
[16:15] <Randomskk> yea think so
[16:15] <Randomskk> or high enough
[16:15] <Darkside> interesting
[16:15] <Darkside> hrm
[16:15] <Darkside> still, the ones i've been using for the TPS61200's aren'y that big anyway
[16:16] <Darkside> ahh ok
[16:16] <Darkside> i see the difference now
[16:17] <Darkside> the TPS61200 can d more output current at 0.8V input
[16:17] <Darkside> thats why i went with that one over other devices
[16:17] <DrLuke> well
[16:17] <Darkside> as i wanted to be able to draw about 120mA down to the point the battery dies
[16:17] <DrLuke> when would you have 0.8V input ever?
[16:17] <DrLuke> single AAs are 1.5V
[16:17] <Darkside> when the batteries die
[16:17] <Darkside> yeah
[16:17] <Darkside> at the end of their life
[16:17] <Darkside> the lower the input voltage can go, the longer it will run for
[16:17] <Darkside> even if its just another hour
[16:18] <DrLuke> well yeah
[16:18] <Darkside> i can run one of my payloads for about 10 hours off a single AA, and even after it drops below 0.8v, it still 'boots up' in a loop for another 2 hours
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[16:19] <Darkside> by boot up, i mean it gets to the point whr eit turns the radio on - the radio emits a short carrier pulse before it draws too much current and the whole thing resets
[16:19] <Darkside> but its still a short beep - I can use direction finding to locate it
[16:19] <Darkside> that extra few hours can matter
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[16:19] <Darkside> Scenario: you lose your payload somewhere in a big national park. you only get the position down to 1-2km
[16:19] <Darkside> so you have a large landing footprint area.
[16:19] <Darkside> its now evening, you can't reciver it that night
[16:20] <Darkside> if your payloads can last a long time, you have the chance to come back the next morning and recover it, or at least get close enough for a landing position, before the batteries die
[16:20] <DrLuke> yeah
[16:20] <Darkside> runtime is important :-)
[16:20] <Darkside> i've experienced this fursthand
[16:20] <Darkside> firsthand*
[16:20] <Darkside> though we did come back later that night, not the next morning
[16:20] <daveake> It is. One of mine got recovered 30 hours after launch
[16:21] <Darkside> because we knew thre payload wouldn't last that long :P
[16:21] <Darkside> this was back with our big clunky through-hole and LDO based payloads
[16:21] <Darkside> DrLuke: if you think you're up to soldering a QFN chip, use the TPS61200
[16:21] <DrLuke> nah
[16:21] <Darkside> hell, i'll give you the part numbers for all the components you need
[16:22] <Darkside> also QFN isn't that hard to solder by hand
[16:22] <DrLuke> I'm new to smd
[16:22] <DrLuke> I want to try a leaded package first
[16:22] <Darkside> if you're new to SMD, that MSOP will be painful enough
[16:22] <Darkside> they have really find pitch spacing on the pins
[16:22] <Darkside> you'll need to use drag soldering
[16:22] <Randomskk> pfft
[16:22] <Darkside> or reflow
[16:22] <DrLuke> uh no
[16:22] <Darkside> if you want to be a cheater
[16:22] <Randomskk> I do msop by hand one pin at a time
[16:22] <Randomskk> :P
[16:22] <Darkside> Randomskk: lol
[16:23] <Randomskk> the stereo microscope helps
[16:23] <eroomde> i use premium unleaded packages
[16:23] <DrLuke> I'll just apply some solder, I'll be fine
[16:23] <eroomde> like bga
[16:23] <Darkside> i don't like needle tip soldering tips
[16:23] <Darkside> i prefer wide chisel tips
[16:23] <Darkside> DrLuke: expect solder bridges everywhere
[16:23] <Darkside> go get yourself some liquid flux if you haven't got any already
[16:24] <DrLuke> darkside, I'm not new to soldering
[16:24] <Randomskk> or jelly flux
[16:24] <Darkside> either in a flux pen, or in a bottle
[16:24] <DrLuke> just new to smd soldering
[16:24] <Randomskk> mmm jelly
[16:24] <Darkside> yes
[16:24] <Randomskk> also solder braid
[16:24] <Darkside> the flux inside the solder core is NOT enough
[16:24] <Darkside> nowhere near
[16:24] <Darkside> i always have a bottle of liquid rosin on hand, its awesome stuff
[16:24] <Darkside> though you need IPA to clean it up :P
[16:25] <Darkside> theres also 'no clean' stuff, but i've always had to clean up after it anyway, so i didn't get the point of it
[16:27] <DrLuke> yeah
[16:27] <Darkside> but yeah, liquid flux is awesome, as is drag soldering
[16:27] <Darkside> makes soldering fine-pitch components so easy
[16:27] <Darkside> also lets you get even distribution of solder on all pins
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[16:28] <joph> you can create flux by yourself, you need IPA and rosin which you can get for example at a violin store
[16:29] <radim_OM2AMR> Upu, are you there ?
[16:30] <radim_OM2AMR> or daveake ?
[16:30] <daveake> Nah
[16:30] <daveake> wossup?
[16:30] <radim_OM2AMR> ok, just one question, going down the flight data
[16:30] <Upu> I'm here
[16:30] <daveake> I'll be very helpful now I know I was your second choice :)
[16:31] <radim_OM2AMR> :-D I found AVA/CLOUD4 with simillar lift and payload mass
[16:31] <Upu> oh that one
[16:31] <Upu> two squirts...
[16:31] <Hix> SI quirts?
[16:32] <Hix> *squirts
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[16:32] <radim_OM2AMR> so the question is, how Anthony or you calculated bursting altitude 37km, I ran it through calculator
[16:32] <Upu> indeed
[16:32] <Hix> liking the unit. could it apply to beer?
[16:32] <radim_OM2AMR> it shows just 35,6 km
[16:32] <daveake> ex-beer
[16:32] <Darkside> radim_OM2AMR: it's the hwoyee woo-woo factor
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[16:32] <Hix> hold the tap and count to three
[16:32] <Darkside> where their balloons either burst higher, or float
[16:32] <Darkside> also hydrogen does weird stuff too
[16:32] <daveake> very
[16:33] <radim_OM2AMR> Darkside , nice :-)
[16:34] <Darkside> chinese rubber: lasts longer than you do
[16:34] <radim_OM2AMR> but the question was for calculations, maybe I'm using another calculator, not the hwoyee tables
[16:34] <Darkside> radim_OM2AMR: it doesn't matter if you do use the hwoyee tables
[16:34] <Darkside> its still going to be incorrect
[16:34] <Darkside> just wait until next weekend
[16:34] <Upu> they also can fail at 27km...
[16:34] <radim_OM2AMR> Darkside, that's valid probably just for rubber ;-)
[16:35] <Darkside> you'll get yo see what happens when you launch a 1600g balloon with hydrogen and helium
[16:35] <Darkside> hopefully we'll have the same payload weight and neck lift too
[16:35] <Upu> UK wins
[16:35] <radim_OM2AMR> 27km is better than float :-D
[16:35] <Darkside> Upu: probably
[16:35] <bertrik> when/why do you choose hydrogen over helium?
[16:35] <Darkside> bertrik: when you can't get helium
[16:35] <Darkside> or its too expensive
[16:35] <daveake> cheaper better and scares Aussies
[16:35] <Upu> h2 is cheaper, better lift, expands less and is environmentally friendly
[16:36] <Upu> h2 also has the downside it can explode
[16:36] <Darkside> yeah
[16:36] <Darkside> thats why we don't use it yet
[16:36] <radim_OM2AMR> We had troubles with obtainig helium, we have to claim, that's for science project :-|
[16:36] <Upu> He is expensive, getting hard to source
[16:36] <Darkside> though i'm seeing it's not as bad as i expected
[16:36] <Darkside> though it's not me you have to convince
[16:36] <Darkside> it's everyone else in project horus
[16:36] <Darkside> also the owner of the land we launch from
[16:37] <Darkside> he would not be happy if we set his house / field on fire
[16:37] <radim_OM2AMR> ok, guys, is it correct url for burst calculator ? ;-) http://www.cusf.co.uk/calc
[16:37] <Upu> "so these crazy pomms put brown sauce on friend pig and use H2"
[16:37] <Upu> it is radim_OM2AMR
[16:37] <Upu> fried
[16:37] <radim_OM2AMR> tnx Upu
[16:38] <Hix> friend pig does sound aussie :)
[16:38] <radim_OM2AMR> so I will follow UKHAS advice - two squirts more ;-)
[16:38] <Darkside> Upu: brown sauce was nice actually
[16:41] <number10> did you like the bacon?
[16:41] <number10> you can be honest daveake is not looking at the moment
[16:41] <Darkside> yes, the bacon was good
[16:42] Action: daveake sturs
[16:42] <daveake> stirs even
[16:43] <Darkside> nothing to see here daveake :-)
[16:43] <daveake> number10 we also gave him so Aussie ginger beer. He's not going to annoy me now is he? :)
[16:43] <daveake> some
[16:44] <number10> he likes ginger beer
[16:44] <Darkside> now i know about the rhyming slang for that one..
[16:44] <Darkside> oh well
[16:44] <daveake> :D
[16:44] <Darkside> bundaberg ginger beer is delicious
[16:45] <number10> I never said a thing
[16:45] <daveake> It is
[16:45] <number10> I shall have to try some - I will eventually find something from oz I like...
[16:45] <Darkside> tim tams
[16:45] <Darkside> everyone likes tim tams
[16:46] <Darkside> i need to find some and bring them into the uni here
[16:46] <number10> although say that we et an australian lady at party on sunday and she made a spinach dip - was fantastic
[16:46] <number10> met
[16:46] <Darkside> daveake: do you know where i can get hold of tim tams?
[16:46] <daveake> nope
[16:46] <Darkside> damn
[16:46] <daveake> what are they?
[16:46] <daveake> ah gottit
[16:47] <Darkside> they are delicious
[16:47] <daveake> http://uk.answers.yahoo.com/question/index?qid=20070412074417AAy4tFZ
[16:47] <Darkside> :O
[16:47] <Darkside> waitrose!
[16:47] <Darkside> there's one of those near here
[16:48] <daveake> Seeya later then
[16:48] <number10> didnt realise waitrose had gone down market
[16:48] <daveake> lol
[16:48] <Darkside> i didn't see them in the sainsburys near where i am
[16:48] <number10> ;)
[16:48] <Darkside> ..
[16:48] <Darkside> you obviously haven't eaten a tim tam
[16:48] <eroomde> what the hell is a tim tam
[16:49] <eroomde> stop being foreign
[16:49] <fsphil> hehe Darkside, one of the girls asked me to bring some of that back when she heard I was going to oz
[16:49] <Darkside> its a type of chocolt ebiscuit
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[16:49] <Darkside> http://en.wikipedia.org/wiki/Tim_tam
[16:49] <Darkside> wikipedia to the rescue!
[16:50] <fsphil> they look a bit like a Pengiun
[16:50] <eroomde> yes
[16:50] <fsphil> (the biscuit :p)
[16:50] <eroomde> it's just a penguin
[16:50] <eroomde> poor antipode is confused
[16:50] <eroomde> jet jet lag still
[16:50] <Darkside> hahaha
[16:50] <Darkside> http://en.wikipedia.org/wiki/File:Tim_Tams.jpg
[16:50] <Darkside> DELICIOUSNESS
[16:50] <daveake> I can see there being a small addition to each payload next weekend ...
[16:50] <Darkside> OH MAN
[16:50] <Darkside> YES
[16:51] <fsphil> oh dear
[16:51] <Darkside> i am going to put a tim tamp in my payload
[16:51] <fsphil> don't launch food
[16:51] <Darkside> and then eat it when it has landed
[16:51] <Darkside> it'll be in a sealed container
[16:51] <Darkside> so i don't catch mr PhD's bugs
[16:51] <fsphil> mmm.. irradiated food :)
[16:51] <daveake> oh dear what have I done
[16:51] <number10> best keep the chocolate for the little girl who lives in the next garden you land in
[16:51] <daveake> maybe just the wrapper?
[16:51] <eroomde> i'm not sure why tim has a tamp and much less why you would eat it after use
[16:51] <Darkside> lol
[16:51] <eroomde> but, cultural acceptance
[16:52] <Darkside> ok..
[16:52] <Darkside> this is hillarious
[16:52] <Darkside> i have to do this now
[16:52] <fsphil> penguins can't fly (both the biscuit and the bird)
[16:52] <Darkside> which means i need to find tim tams
[16:52] <nick_> Penguins can fly
[16:52] <nick_> Just under water...
[16:52] <fsphil> not voluntarily
[16:52] <nick_> (or out of water a short distance)
[16:52] <eroomde> http://www.nicecupofteaandasitdown.com/biscuits/previous.php3?item=47
[16:52] <Darkside> ok so waitrose is open until 9pm..
[16:53] <Darkside> hrm
[16:53] <fsphil> that's more jumping with style
[16:53] <BrainDamage> nick_: using higher density fluids is cheating
[16:53] <Darkside> bah
[16:53] <Darkside> penguin..
[16:53] <nick_> They do some awesome drag reduction system to launch themsevles by kicking out some bubbles
[16:53] <Darkside> So the verdict? Well the Tim Tam is a classy little biscuit, it tastes great and its insubstantial nature affords the sucking of tea and coffee through it by Australian songstresses, the infamous Tim Tam Slam. However, the mighty Penguin offers a more of a satisfying mouthful and its greater bulk elevates it from treat to a snack. We would suggest that there is something to learn from both biscuits and if haven't tried one or the ot
[16:53] <Darkside> bahaha
[16:54] <fsphil> lol
[16:54] <Hix> 1-0
[16:54] <number10> must be true - was on the internet
[16:54] <daveake> "In our review we sent a sample of each into near space ..>"
[16:54] <fsphil> however neither subject gained any powers from eating the exposed biscuits
[16:55] <Darkside> daveake: you should send up a bacon butty
[16:55] <fsphil> but I think the best way to decide which tastes better is to take a tip from the Top Gear testing labs -- see which can go higher
[16:56] <Darkside> bahahahahahha
[16:56] <Darkside> oh yes
[16:56] <BrainDamage> within next week I should have a ~750W xray machine, if you send me samples, I could comparatively test them
[16:56] <BrainDamage> make sure to send a lot of samples tough :p
[16:56] <Darkside> ok... i need to go home
[16:56] <Darkside> back later
[16:56] <eroomde> that is a selfless offer BrainDamage
[16:57] <BrainDamage> I know, my motto is "for science!"
[17:00] <Upu> http://www.graphix1.co.uk/wp-content/uploads/2011/05/WarningScienceAhead.jpg
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[17:04] <gonzo_> after going into space you'd need to do some 750W microwave absobtion tests
[17:04] <gonzo_> can't have cold bacon butties!
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[17:06] <gonzo_> (oops, sorry, near space!)
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[17:17] <eroomde> Upu: http://i.imgur.com/FlH0v.jpg
[17:17] <Randomskk> amazing
[17:17] <Randomskk> I've been to reunion, it looked nothing like mars
[17:18] <eroomde> just full of people you once knew who look a bit older, right
[17:18] <eroomde> confusing isn;t it
[17:18] <Randomskk> very
[17:18] <Randomskk> maybe it's the 15 minute time delay
[17:20] <cuddykid> had an email from Chris (Hillcox) earlier - he's getting his first batch of Pawan 1200Gs tomorrow and selling them at £60 a "pop" - might be interesting to see how the altitudes compare with Hwoyees - has anyone tried the pawans before?
[17:20] <eroomde> we all do things we regret when we're younger
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[17:52] <Upu> I like the picture eroomde
[17:52] <eroomde> tis good huh
[17:53] <Upu> I was going to make some gag about australia ...
[17:54] <Darkside> we have areas that look like that...
[17:55] <eroomde> new awesome thing peeps
[17:55] <eroomde> mushroom, sherry and wholegrain mustard creamy suace
[17:55] <eroomde> it's kind of like everything in one of my chicken and mushroom pies but without the chicken (and sifted)
[17:56] <eroomde> make it the next time you do a steak or a pork chop or something
[17:56] <eroomde> happiness guarateed or your money back
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[18:20] <Lunar_Lander> hello
[18:20] <kristianpaul> hi
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[18:22] <fsphil> yoyo
[18:25] <Lunar_Lander> I was looking for 68 uF caps in the store today
[18:25] <Lunar_Lander> the only one they had was a bipolar 100 Volt version
[18:25] <Lunar_Lander> quite a huge thing
[18:25] <Lunar_Lander> they had tantalums but only rated for 3 V
[18:25] <Lunar_Lander> not good for a 5 V circuit I guess
[18:31] <griffonbot> Received email: Elmar PD3EM "Re: [UKHAS] Burst Calculater with Hwoyee Balloon"
[18:32] <daveake> Why 68uF in particular?
[18:32] <Lunar_Lander> I calculated 60 uF for the output capacitor of the stepup chip
[18:32] <Lunar_Lander> and then I looked and saw that 68uF is near by
[18:32] <Darkside> you can probably use lower
[18:33] <daveake> You realise that electrolytics are typically +50 -20 %?
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[18:33] <Darkside> if you really need 68pF and can't find smaller caps and put htem in parallel
[18:33] <daveake> Probably 47 or 100 would have been just fine
[18:33] <Darkside> i mean, can't find physically small caps
[18:33] <daveake> uF Darkside
[18:33] <Darkside> yeah
[18:33] <Darkside> whoops
[18:33] <daveake> It's not going to be critical
[18:36] <Lunar_Lander> yea
[18:36] <Lunar_Lander> the 47 is a good tip
[18:36] <Lunar_Lander> an engineering friend of mine talked about 100 the other day but I thought that might be too much even with tolerance
[18:37] <daveake> And what will happen if you use too large a capacitance?
[18:41] <fsphil> why are you using a step-up anyway?
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[18:44] <Lunar_Lander> the datasheet doesn't talk about that
[18:44] <Lunar_Lander> I mean the chip is like, as I got it, variable depending on the components around it
[18:44] <Lunar_Lander> I want to get 5 V from a lipoly for a different project
[18:44] <fsphil> sparkfun sell a complete module for that
[18:45] <fsphil> or you just want to try building one?
[18:45] <Lunar_Lander> yea but I wanted a bit of a challenge
[18:45] <costyn> the output cap is to regulate any variances in voltage, correct?
[18:45] <Lunar_Lander> yeah
[18:45] <Lunar_Lander> yeah ripple
[18:45] <fsphil> nice
[18:46] <Lunar_Lander> yeah output current divided by the capacitance times the "on time" (have to read that up again) is the ripple voltage contribution by the capacitance
[18:46] <Lunar_Lander> wait
[18:46] <Lunar_Lander> let me check the paper again
[18:46] <costyn> eroomde: that imgur pic you posted, what's on the right side?
[18:46] <Lunar_Lander> yes, ripple is the sum of the contributions of capacitor ESR, comperator gain and the capacitance
[18:47] <Lunar_Lander> and the last one is t*(I/C)
[18:47] <Lunar_Lander> so a big capacitance would lower that
[18:47] <costyn> Lunar_Lander: less ripple?
[18:47] <BrainDamage> ESR will actually be the the dominant part for electrolythic caps
[18:47] <Lunar_Lander> yes to both
[18:48] <Lunar_Lander> I found like models with 1.5 Ohms ESR
[18:48] <Lunar_Lander> and that made a huge difference
[18:48] <Lunar_Lander> as that contribution is ESR*peak switch current
[18:48] <Lunar_Lander> in the worked example in the paper they got 107 mV
[18:48] <Lunar_Lander> and 44.2 came from ESR
[18:49] <Lunar_Lander> 33.6 from comparator and 28.7 from the cap
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[18:49] <Lunar_Lander> the reason why I was looking for tantal was the paper too
[18:50] <Lunar_Lander> "A 27 ¼F tantalum capacitor with an ESR of 0.10 © was again chosen."
[18:50] <Lunar_Lander> ah I found an error
[18:50] <daveake> Yes they are much better for this
[18:50] <Lunar_Lander> they calculated 5.5 uF but they use 27 uF anyway
[18:50] <daveake> ^^ hint
[18:51] <Lunar_Lander> that seems to be OK as in the other example they calculate 10 uF but use 27
[18:51] <Lunar_Lander> yea
[18:51] <Lunar_Lander> wait
[18:51] <Lunar_Lander> there was a hint on cap value somewhere
[18:51] <daveake> Chuck in a 100uf tant. Job done.
[18:51] <Lunar_Lander> "Desired peaktopeak output ripple voltage. In practice, the calculated capacitor value will need to be increased due to its equivalent series resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the line and load regulation."
[18:51] <Lunar_Lander> OK
[18:54] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Burst Calculater with Hwoyee Balloon"
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[19:09] <mclane> Hi guys, I would like to submit a flight document
[19:09] Nick change: ivan`` -> ^ivan``
[19:10] <mclane> any ukhas people in the chat today?
[19:13] <Upu> hey mclane
[19:14] <Upu> just post it to pastebin.org and link here
[19:17] <mclane> hi upu, here is the link: http://pastebin.com/raw.php?i=2GaVixc6
[19:17] <Upu> ta
[19:17] <Upu> when is it valid from too ?
[19:18] <Lunar_Lander> hi mclane Upu
[19:18] Action: Upu slaps Lunar
[19:19] <mclane> valid from Sept. 15 to Oct 20
[19:19] <Upu> evening Lunar_Lander :)
[19:19] <Upu> ok
[19:19] <Lunar_Lander> xD
[19:19] <Upu> I've asked for it to be added
[19:19] <mclane> thanks upu
[19:21] <mclane> hi Lunar_Lander
[19:23] <DanielRichman> mclane: done
[19:25] <mclane> super, thanks!
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[19:34] <griffonbot> @PD3EM: When testing #CHDK make sure the lens protection is fully opened before shooting for more then 12 hrs ;-) #HAB #UKHAS http://t.co/YJIZp1s3 [http://twitter.com/PD3EM/status/242707219316084736]
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[19:42] <fsphil> whoops
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[20:06] <jonsowman> lol
[20:08] <Upu> :
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[20:11] <Lunar_Lander> xD
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[20:24] <G7PMO_Kev> Guys, I have an NTX2 and a max-6 now connected up and working (http://ukhas.org.uk/projects:jimbob), but I am struggling to take the next step into writing my own code and some key decissions. 1) Should I use the 1 hardware serial port for the GPS? It limits my debuging options, but provides more reliable serial data, or is the latest softserial (in Arduino 1.01?) good enough?
[20:25] <Darkside> use hardware serial
[20:25] <Darkside> for the gps
[20:25] <Darkside> you can output debug information via a software serial port
[20:25] <Elmar_PD3EM> +1
[20:25] <Darkside> or use LEDs for debugging :P
[20:26] <G7PMO_Kev> 2) I thought I would start by asking the GPS for a string ($PUBX,00*33) and passing it straight to rtty_txstring, but straight away I fall over variable type issues, whats the right way I shoudl be going about this?
[20:26] <zyp> or stop clinging to platforms with only one hardware UART
[20:26] <Elmar_PD3EM> LOL Darkside ... make the output CW ;-)
[20:26] <Darkside> zyp: you only need one hardware UART
[20:26] <Darkside> for this anyway
[20:26] <G7PMO_Kev> hardware serial for the gps it is :)
[20:26] <Darkside> of course there ar ebetter chips out there
[20:26] <Darkside> if you need more than one hardware UART then don't use a ATMega328
[20:27] <Darkside> use a 644, or a 1281, 2561, 2560, whatever
[20:27] <Darkside> and thats just if you want to stick with an ATMega
[20:27] <G7PMO_Kev> re 2) do I need to be thinking tiny GPS and parsing it all, that is overkill is it not
[20:28] <Darkside> G7PMO_Kev: i use tinyGPS
[20:28] <Darkside> just because i couldn't be arsed writing my own parser
[20:28] <Darkside> but if you use PUBX its only one string to parse
[20:28] <Darkside> so its not that hard
[20:28] <G7PMO_Kev> if I wanted to interpret and process the data I understand tinygps, but if I just want to pass it back out again to rtty do I need the complexity at this stage?
[20:28] <Darkside> well you need to do some munging of the gps data anyway
[20:29] <Darkside> as its formatted as DDMM.MMM
[20:29] <G7PMO_Kev> I do? :)
[20:29] <Darkside> (i think>)
[20:29] <Darkside> i cant remember the NMEA format
[20:29] <Darkside> is it DDDMM.MMM? (anyone?)
[20:29] <Darkside> or is it something else
[20:30] <Darkside> i think thats about right
[20:30] <G7PMO_Kev> $PUBX,00,hhmmss.ss,Latitude,N,Longitude,E,AltRef,NavStat,Hacc,Vacc,SOG,COG,Vvel,ageC,HDOP,VDOP,TDOP,GU,RU,DR,*cs<CR><LF>
[20:30] <Darkside> yeah, but what format ar elatitude and longitude in
[20:30] <Darkside> i bet they aren't DD.DDDDD
[20:30] <Darkside> and if not, you're going to need to convert them
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[20:30] <G7PMO_Kev> ddmm.mmmm
[20:31] <Darkside> yeah
[20:31] <Darkside> so you're going to need to parse that, and convert it to DD.DDDDD
[20:31] <Darkside> now, do you want to do that by doing string manipulation then conversion to a double or whatever
[20:31] <G7PMO_Kev> hehehe, ummm, no.... ;)
[20:31] <Darkside> or do you want to just plug it into tinygps somehow
[20:31] <G7PMO_Kev> tinygps it is :)
[20:31] <Darkside> well
[20:31] <Darkside> tinyGPS won't handle PUBX strings
[20:32] <Darkside> well, not normally (the version i use has been modded to do that)
[20:32] <G7PMO_Kev> pretty please? :)
[20:32] <Darkside> but you can probably find a function in tinyGPS that will convert that particular field to something more usable
[20:32] <Darkside> so maybe you can look in tinyGPSes code, and pull out what you need
[20:33] <G7PMO_Kev> Id like to keep my first attempt as simple and standards based as possible
[20:33] <Darkside> another option is to use the ublox binary mode
[20:34] <Darkside> its possible the tinygps mods are online somewhere
[20:34] <G7PMO_Kev> id like to stick to text, the Q is do I use a modified tinygps that understands PUBX, or do I go back to accepting NMEA sentances from the GPS whenever it wants to send them, rather than polling for the PUBX string?
[20:35] <Darkside> well, polling is nicer
[20:35] <Darkside> as you get data when you want it
[20:36] <Darkside> heh, when i search for tinygps pubx i get the version i hacked to work on an xmega
[20:36] <Darkside> thats fun
[20:37] <G7PMO_Kev> http://xmega-qrp.googlecode.com/svn-history/r16/trunk/XMega_Code/include/TinyGPS.cpp
[20:37] <Darkside> oh wait
[20:37] <Darkside> http://ukhas.org.uk/guides:falcom_fsa03
[20:37] <Darkside> look right at the borrom of this page
[20:37] <Darkside> bottom
[20:37] <Darkside> someone else has done it too
[20:38] <Darkside> and has provided the tinyGPS lib
[20:38] <Darkside> have fun
[20:39] <G7PMO_Kev> ta
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[21:55] Nick change: DRAMA -> DRAMAWAY
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[22:09] <daveake> #hamaltitude
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[22:12] <Lunar_Lander> xD
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[22:27] <griffonbot> @daveake: Blog post for the weekend flight of my CLOUD6 weather balloon http://t.co/i7F65srN #UKHAS [http://twitter.com/daveake/status/242750586376826880]
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[22:31] <griffonbot> Received email: David Akerman "Re: [UKHAS] Launch Announcement - Sunday 2nd September"
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[22:46] <jcoxon> ping Upu
[22:47] <daveake> Gone to bed
[22:48] <jcoxon> i'm upset that one of my channel tabs has failed to open
[22:49] <fsphil> try again
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[00:00] --- Tue Sep 4 2012