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[01:28] <MLow> what yall think of my cutdown plan, https://www.dropbox.com/s/glvhmdgbmqem4b1/cutdownplan.png
[01:30] <Dan-K2VOL> well, to me it looks like it's got a high risk of tangling to the point of not releasing
[01:30] <MLow> just an idea
[01:31] <MLow> i dont plan on messing with cutdown stuff just yet
[01:31] <Dan-K2VOL> I've flown several cutdown arrangements, and the most reliable has been a second small styrofoam payload above the parachute that leaves with the balloon
[01:31] <MLow> alright
[01:32] <MLow> with the battery and the mechanism in ther?
[01:32] <Dan-K2VOL> yes
[01:35] <MLow> dtmf with a ham radio in it?
[01:36] <Dan-K2VOL> no, just timer
[01:36] <MLow> or something a lil more simple
[01:36] <MLow> ah
[01:36] <MLow> so a rtc? or just using an occilator
[01:36] <Dan-K2VOL> a small microcontroller oscillator timer
[01:36] <Dan-K2VOL> it's good enough
[01:36] <MLow> come to think of it an attiny would be accurate enough with a crystal
[01:36] <Dan-K2VOL> yeah
[01:36] <MLow> 9v battery, small coin cell for the mcu, a mosfet
[01:37] <MLow> 10 bucks or so total
[01:37] <MLow> pretty slick
[01:37] <MLow> what mcu you use?
[01:38] <Dan-K2VOL> might want more current than the 9v, we've used the 6v photo lithium double-cell, or 4 energizer lithium AAs
[01:39] <Dan-K2VOL> have used a pic before, I've got a hookup for read-to-fly GPS altitude triggered cutdowns, if you're interested
[01:39] <MLow> i bought a bag of those energizer cells off ebay
[01:39] <MLow> the ones i test had full voltage
[01:39] <Dan-K2VOL> full ?
[01:39] <MLow> 1.7v
[01:39] <Dan-K2VOL> what voltage
[01:39] <MLow> under a test load
[01:40] <Dan-K2VOL> not bad, the open circuit voltage should be 1.8
[01:40] <MLow> their datasheet says thats the voltage for full battery
[01:40] <Dan-K2VOL> looks good
[01:40] <MLow> i just use them around the house
[01:40] <MLow> would likely buy new ones for anything important
[01:41] <MLow> couple of them run an arduino for mighty long though
[01:41] <Dan-K2VOL> what else are you planning to do on your flight?
[01:41] <MLow> not a whole lot, first flight
[01:41] <MLow> mostly a test flight i guess
[01:41] <Dan-K2VOL> nice
[01:41] <MLow> put a camera in it, make sure i can find it
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[01:42] <MLow> so ive got an radiometrix radio and using an arduino clone
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[01:43] <MLow> a gps that is confirmed to work above cocam altitude
[01:43] <Dan-K2VOL> nice
[01:44] <Dan-K2VOL> got anybody else working with you?
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[01:52] <MLow> no :(
[01:52] <MLow> my gf is for moral support only, no technical abilities
[01:52] <Dan-K2VOL> hehe
[01:53] <MLow> i will be etching some more copper tmor
[01:53] <MLow> for pcb's
[01:54] <Dan-K2VOL> that's always fun, what method do you like for transferring the traces
[01:56] <MLow> toner
[01:56] <MLow> i use the laserjet at work
[01:56] <Dan-K2VOL> using an iron or laminator?
[01:56] <MLow> on some hp photopaper, transfer is beautiful
[01:56] <MLow> laminator
[01:56] <Dan-K2VOL> nice
[01:57] <MLow> the laminator is rated for the board thickness i use too :D
[01:57] <Dan-K2VOL> oh cool, no mods needed
[01:57] <MLow> but it still slips a little because of the papers surface, so i just keep a finger on it as it rides
[01:57] <MLow> not cool, hot 8)
[01:58] <Dan-K2VOL> ha
[01:58] <MLow> about 10 trips in that thing makes some nice transfer
[01:59] <MLow> 0.060 thick board is nice and solid too
[01:59] <MLow> i just need a makerbot to make my own cases and standoffs buaahah
[02:00] <MLow> budget cant handle 3d printer unfortunately
[02:01] <Dan-K2VOL> yeah that's a big chunk of change
[02:03] <MLow> so is hab
[02:03] <MLow> my gf's moral support is in forcing me to wait for our paychecks
[02:03] <MLow> for "hobbies"
[02:04] <MLow> real life just gets in the way
[02:04] <Dan-K2VOL> oh yes I know how that goes
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[02:16] <MLow> need to make a board for the tracker and test that out, i have yet to fully assemble everything short of breadboard stuff
[02:30] <MLow> ive got some temp sensors too
[02:30] <MLow> about it
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[05:42] <daveake> Just reading the IRC log for yesterday, as I like to do the day after a launch, to see what I missed :)
[05:42] <daveake> [00:35] <fsphil> "I will eat my hat if we don't see Raspberry Pi-based high-altitude ballooning in the next year" - Eben Upton
[05:42] <daveake> lol
[05:42] <daveake> Might send him an email :D
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[06:10] <daveake> Also from yesterday (re the PIE/PAVA/BUZZ) flight:
[06:10] <daveake> [14:01] <fsphil_MI0VIM> looking forward to seeing the images from a big empty field beside a road with adequate parking
[06:11] <daveake> Which, funnily enough, is exactly what happened :)
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[07:10] <Upu> morning
[07:12] <daveake> morning
[07:12] <daveake> Legs still stinging!
[07:13] <daveake> A second application of some anti-itch stuff is starting to work
[07:13] <Upu> what was in that field ? triffids?
[07:13] <daveake> Seemed like it at the time
[07:13] <daveake> Rape
[07:13] <daveake> Seemed like that at the time too lol
[07:14] <daveake> That stuff grabs you ankles and hits you in the balls
[07:14] <Upu> todays word is "inaccessible"
[07:14] <daveake> Hard work walking through it
[07:15] Action: daveake looks that up
[07:15] <daveake> Let's put it this way, it took me 20 minutes to travel 300 yards
[07:16] <daveake> But yeah, don't think I'd bother again for a throwaway payload :)
[07:16] <daveake> But think of the environmental damage if it had been left there to get sucked into a combine harvester!!
[07:16] <Upu> lol
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[07:17] <daveake> Payload and latex were 2- feet off the ground, and the top of the greenery was about 5 feet up
[07:17] <daveake> Hence completely invisible till, well, you walk into it, like I did
[07:18] <daveake> Couldn't have done it without that sat nav program
[07:18] <Upu> you're very silly but have some hab points
[07:19] <daveake> Thanks. Can I exchange them for beer sometime?
[07:19] <Upu> sure
[07:19] <daveake> woohoo :)
[07:19] <Upu> right just walking dog
[07:19] <Upu> back soon
[07:19] <daveake> ok
[07:20] <mclane> did you succeed to recover pava?
[07:20] <daveake> yup
[07:21] <daveake> And I have the scars to prove it :D
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[07:35] <daveake> morning number6 :p
[07:37] <number10> :( morning
[07:37] <number10> must do a launch soon
[07:38] <daveake> My #1 from last year is down to 10 already
[07:39] <number10> keep slipping down the list - you lot are determined to knock me out of the top 10
[07:39] <number10> amazing
[07:39] <daveake> Surprise of the day though was a heavily laden 1200 touching 40km
[07:39] <number10> was there loads of baloon remnants in PAVA?
[07:40] <daveake> yep
[07:40] <number10> yes that was a suprise
[07:40] <daveake> I'll weigh it soon
[07:40] <number10> it looked a bit windy when you were measuring lift on the 1200 - was it difficult?
[07:41] <daveake> not too bad
[07:41] <daveake> windy launch though
[07:42] <daveake> the line to uava ane pie was near horizontal
[07:42] <daveake> so had to wait
[07:42] <daveake> and then run
[07:42] <number10> I could not decode ane of Upu s - Its bad here as the house is in the was for that direction - but at >20k should have been able to
[07:42] <number10> you were out of shot for the launch - Mrs 10 was sitting here hoping to see it
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[07:43] <daveake> Morning Rocketboy
[07:44] <RocketBoy> mornin
[07:44] <daveake> The 1000 Hwoyee arrived yesterday TVM
[07:44] <number10> the 1200 launch looked a bit tricky ... i didnt see any throwing it over your sdholder stuff
[07:44] <daveake> er, no
[07:44] <number10> ;)
[07:44] <daveake> wait for it to get as vertical as it's going to, then run like hell
[07:46] <Upu> morning
[07:46] <Upu> hey RocketBoy
[07:46] <RocketBoy> yo
[07:46] <Upu> spoken to Dave about the pico payload coming down so slow ?
[07:47] <RocketBoy> nope
[07:47] <Upu> looks like the balloon parachuted
[07:47] <daveake> All I can say is that there was a large mess of latex
[07:47] <daveake> I'll weigh it soon
[07:47] <Upu> large mess of Dave
[07:47] <Upu> http://imgur.com/Zvhfq
[07:47] <daveake> ah
[07:47] <Upu> landed in a very inaccesible location
[07:48] <Upu> this didn't however stop someone
[07:48] <RocketBoy> oh - you got it back
[07:48] <daveake> yup
[07:48] <RocketBoy> i thought you had given up
[07:48] <daveake> eventually :)
[07:48] <daveake> Upu did :p
[07:48] <Upu> Well I was sensible and had
[07:48] <daveake> But someone said it was near an A34 layby (true)
[07:49] <RocketBoy> you look a bit wet
[07:49] <daveake> and that the rain was about to stop (not true)
[07:49] <daveake> and it was easy to get to (very not true)
[07:49] <Upu> check this out : http://i.imgur.com/WLFvX.jpg
[07:49] <daveake> Took 20 minutes to walk 300 metres
[07:49] <Upu> all in all was a great day
[07:50] <Upu> I'll fill in the data later
[07:50] <RocketBoy> well I guessed it must have been something like the balloon still up somehow
[07:50] <Upu> you record is safe for another day but at least I got into the 43k "woo woo" zone
[07:50] <Upu> though talking of woo woo
[07:50] <Upu> 1200g balloon taking 1kg just shy of 40k
[07:50] <RocketBoy> yeah - well done
[07:50] <Upu> cheers
[07:51] <RocketBoy> yeah that was amazing
[07:51] <daveake> The 1200 was a surprise
[07:51] <daveake> 1600 + light payload + H2 is going to either burst early or get to 42km ish
[07:51] <RocketBoy> the 1200s have been good before
[07:51] <Upu> both baloons got wet
[07:51] <daveake> (well from recent experience that's the case)
[07:51] <daveake> But that 1200 had 1kg of payloads underneath
[07:52] <daveake> And we sent it up quickly
[07:52] <Upu> 6.5m/s
[07:52] <Upu> 3 payloads weight the same as my first one :)
[07:52] <daveake> Ditto!
[07:53] <Upu> train needs to be shorted next time
[07:53] <Upu> shorter
[07:53] <daveake> Looked a bit alarming when the line from me to the top payload was pretty much horizontal
[07:53] <Upu> my wife was watching on the feed and she though it was going to come back down
[07:53] <RocketBoy> lots of running then
[07:54] <daveake> Yeah
[07:54] <Upu> he did
[07:54] <daveake> I waited till it got to a reasonable angle, then legged it
[07:54] <Upu> only had so much field though
[07:54] <daveake> Only have so much leg power :p
[07:54] <Upu> it looked great taking off
[07:54] <daveake> yep
[07:55] <daveake> Impressive sight
[07:55] <Upu> there is a frame on the video where we are both on it
[07:55] <RocketBoy> so what was in the pava field?
[07:55] <Upu> triffids
[07:55] <daveake> Rape
[07:55] <daveake> lol
[07:55] <RocketBoy> nightmare
[07:55] <daveake> It was
[07:55] <daveake> First attempt failed as I couldn't see the payload
[07:56] <daveake> So I went back and ran "Ham GPS" on my phone
[07:56] <RocketBoy> at least the flowers have gone
[07:56] <daveake> Typed in the payload position then used that
[07:56] <daveake> Yep
[07:56] <daveake> Evil bastards though
[07:56] <RocketBoy> otherwise you would be a yellow mess
[07:56] <daveake> Grabbing ankles
[07:56] <daveake> lol
[07:56] <daveake> Instead of a green mess
[07:57] <number10> what was the length between each payload?
[07:57] <Upu> 10 meters ?
[07:57] <Upu> it was too much
[07:57] <daveake> About that
[07:57] <Upu> http://i.imgur.com/9TuBc.jpg
[07:57] <daveake> That's nice
[07:58] <Upu> excuse the pink in frame made a cock up, I had the camera in narror FoV mode when tested it
[07:58] <number10> thats good - did you manage to open the gate to the field - or climb it?
[07:58] <Upu> had to climb it
[07:58] <daveake> Some cloning will sort that out
[07:58] <Upu> Dave , whilst holding the balloon
[07:59] <Upu> shame the GoPro steamed up
[07:59] <Darkside> hey all
[07:59] <Darkside> Upu: how did recovery go?
[07:59] <Upu> morning Darkside
[08:00] <Upu> the main one was easy
[08:00] <number10> is it in a waterproof case that can be opened Upu ?
[08:00] <Upu> landed on a football pitch
[08:00] <Upu> yeah number10
[08:00] <Darkside> is that the pic you just linked Upu ?
[08:00] <Upu> though it was sealed with the pressure was very hard to open
[08:00] <Upu> yep that Buzz which was under mine just after burst
[08:00] <Darkside> heh
[08:00] <Darkside> people on the pitch too
[08:00] <Upu> no
[08:00] <Darkside> i bet they were confused
[08:00] <number10> was that the same same setup on cat and budgie?
[08:00] <Darkside> oh was that you
[08:01] <Upu> well actually the pink parachute landed on the pitch
[08:01] <Upu> sec
[08:01] <daveake> The pic above is after launch from the village green here
[08:01] <Darkside> ahh ok
[08:01] <Darkside> hence the people
[08:01] <daveake> yep
[08:01] <Darkside> heh
[08:01] <Darkside> ok
[08:01] <daveake> Upu on the left and me on the right
[08:01] <Upu> thats me and Dave
[08:01] <Upu> http://i.imgur.com/wHjc3.jpg
[08:02] <Darkside> so one landed on a football pitch
[08:02] <Darkside> what aboutthe other one?
[08:02] <Upu> thats what we saw on the landing
[08:02] <Upu> well there's an interesting story
[08:02] <Darkside> good lord the net connection here is slow
[08:02] <Upu> after Steve raised concerns it may have come down with H2 in it we decided to go after it
[08:02] <Darkside> eh? you saying it didn't burst?
[08:02] <RocketBoy> one of my flights landed in a golf course - video shows people walking about
[08:02] <Upu> it appeared too
[08:03] <Upu> went through the motions of burst
[08:03] <RocketBoy> but clearly oblivious to the landing payload
[08:03] <Darkside> oh i saw that on PAVA
[08:03] <Darkside> it had a little bit extra on the end
[08:03] <daveake> Here's a shot from the PAVA recovery - http://www.csaword.co.uk/WebRoot/BT/Shops/3828/4A5D/DB17/845B/EFCB/3DD1/0A0A/33D4/4724/Day_of_the_TRIFFIDSfront.jpg
[08:03] <Upu> but then its decent rate was 1.2m/s @ 20km
[08:03] <Darkside> like, it slowed down a little bit towards landing
[08:03] <Darkside> we;ve had that
[08:03] <Darkside> well
[08:03] <Darkside> not that slow
[08:03] <Upu> think the balloon acted like a chute
[08:04] <Darkside> we've had very light payloads fall at ridiculously slow speeds before
[08:04] <Upu> it wasn't a heavy payload anyway
[08:04] <number10> lol, dave - next you'll be telling us it was recovered in the amazon
[08:04] <Darkside> also had payloads get caught in thermals and descend at 0.1mS
[08:04] <Darkside> 0.1m/s*
[08:05] <Upu> anyway Dave got it back
[08:05] <Upu> beyond the call of duty
[08:05] <Darkside> hah
[08:05] <daveake> :)
[08:06] <Darkside> so where did it land then?
[08:06] <Upu> Darkside http://imgur.com/Zvhfq
[08:06] <Upu> in a field full of triffids
[08:06] <number10> as well as HAB points we are going to have to award HAB medals
[08:06] <Darkside> loooooooooading
[08:06] <Upu> nsfw Darkside
[08:06] <Upu> soggy dave in shorts
[08:06] <Darkside> nice shirt
[08:07] <Darkside> dave's looking a bit wet there
[08:07] <Darkside> maybe he got a wee bit excited on teh chase
[08:07] <Upu> daveake's like the Terminator of HAB recovery, it simply will not stop until the payload is recovered
[08:07] <Darkside> haha
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[08:08] <Upu> was a great day though, did you note the 1.2kg balloon got to 40km ?
[08:08] <Darkside> yep
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[08:09] <Upu> ah mr fsphil
[08:09] <Upu> morning
[08:09] <Darkside> now i want to find out if it's a hydrogen thing or a balloon thing
[08:09] <Upu> Thats a balloon thing
[08:09] <Darkside> you sure?
[08:09] <Upu> H2 doesn't give +7km
[08:09] <Darkside> the 43kg thing is a bit wierd
[08:09] <Darkside> mm
[08:09] <Darkside> 43km*
[08:09] <fsphil> morning Upu
[08:09] <daveake> PAVA in the field http://www.flickr.com/photos/daveake/7573113802/
[08:09] <Upu> yeah +43km is woo woo zone
[08:09] <Darkside> we'll need to try for a ridiculous altitude launch here with heium
[08:09] <Darkside> helium*
[08:09] <Darkside> just to prove it can be done
[08:10] <Upu> fsphil the wife said thanks for the excellent commentary on the BATC chat helped her and her mum understand it
[08:10] <Upu> I got home and she start saying "yeah its not great when it fades"
[08:10] <daveake> lol
[08:10] <Upu> that is alot of latex
[08:10] <daveake> Yep
[08:11] <daveake> The field - http://www.flickr.com/photos/daveake/7573119124/
[08:11] <fsphil> lol
[08:11] <number10> daveake: thats going to cost you a lot to post all that latex back to Upu ;)
[08:11] <Upu> lol
[08:11] <daveake> It'll be worth it :D
[08:11] <daveake> On the way back to the road - http://www.flickr.com/photos/daveake/7573120662/
[08:11] <Upu> don't you dare :)
[08:11] <Darkside> oh it landed in plnants
[08:11] <daveake> It's sooo tempting :D
[08:12] <number10> looks like beans in the field
[08:12] <Upu> rape
[08:12] <daveake> It felt like it
[08:12] <Darkside> hah
[08:12] <daveake> Was having trouble working the phone with the rain landing on it
[08:13] <Darkside> still, you UKers and your >43km launches
[08:13] <daveake> Yeah, we have green stuff here :)
[08:13] <Upu> well I think someone should try a 1.2kg balloon
[08:13] <Darkside> yeah
[08:13] <Upu> with a light payload and a low roa
[08:13] <Darkside> hmm id ont think we have any
[08:13] <Upu> ahd H2 ofc
[08:14] <Darkside> bah
[08:14] <Darkside> try it with helium
[08:14] <Darkside> see if you get the same result
[08:14] <Upu> Too bloody expensive
[08:15] <Upu> but yes some science(TM) wouldn't be a bad idea
[08:15] <Upu> lol
[08:15] <Upu> from batc.tv chat :
[08:15] <Upu> 14/07 11:21 guest788 : theres a bloke in the way... Oi fella - move to your right..
[08:16] <Darkside> lol
[08:16] <Upu> 14/07 11:30 guest802 : Good to see a fine beard, instills confidence
[08:16] <daveake> lol
[08:16] <Upu> 14/07 11:30 MI0VIM : I could never grow a beard like that, despite being a unix admin and radio amateur
[08:16] <daveake> Just think what altitudes we could achieve if we had beards
[08:16] <RocketBoy> this stuff was pretty dense for recovery http://imagebin.org/220829
[08:17] <Upu> that looks nasty RocketBoy
[08:17] <daveake> eek
[08:17] <Darkside> looks like pot
[08:17] <RocketBoy> bingo
[08:17] <Darkside> wat
[08:17] <daveake> lol
[08:17] <daveake> I couldn't see the payload until I walked into it
[08:17] <RocketBoy> 6 football pitches of it
[08:17] <Upu> seriously ?
[08:17] <Darkside> WAT
[08:17] <Darkside> in the UK?
[08:18] <RocketBoy> yep
[08:18] <Upu> I thought it was pine trees
[08:18] <number10> grow hemp for fibres
[08:18] <Darkside> how did you get in there without getting shot?
[08:18] <RocketBoy> distinctive smell
[08:18] <number10> used to grow it a lot for ship ropes when we were sending criminals over to Oz
[08:18] <daveake> :D
[08:19] <number10> :)
[08:19] <Darkside> hmm whats that joke..
[08:19] <Darkside> "I wonder what criminals would say if we just dropped them off on an island, and came back 200 years later"
[08:19] <Darkside> something along the lines of "G'Day made"
[08:19] <Upu> "lol"
[08:19] <Darkside> mate*
[08:20] <Darkside> ok bbl
[08:20] <RocketBoy> bbl
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[08:21] <Upu> so fitting a hand warmer to the Pi next time ?
[08:21] <daveake> lol
[08:21] <Upu> surprised it even still works
[08:21] <daveake> Yep
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[08:22] <daveake> I've got some switched mode modules coming
[08:24] <daveake> Did you see http://www.zdnet.com/raspberry-pi-in-space-putting-the-linux-pc-into-orbit-7000000577/ ?
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[08:25] <Upu> anyone tracking yesterday what was the signal like from UAVA ?
[08:25] <Upu> Drift wise
[08:26] <Upu> no send them a mail daveake :)
[08:26] <fsphil> yea, he'll be happy not to have to eat a hat
[08:26] <daveake> I will :)
[08:26] <daveake> Thanks for finding that fsphil
[08:26] <fsphil> actually we should have invited him into the channel
[08:26] <daveake> Saw your comment in the log from yesterday
[08:27] <daveake> Also saw the one where you said your server would be fine under the load :p
[08:27] <fsphil> er, was that me?
[08:27] <fsphil> ahem
[08:27] <Upu> that last position of UAVA is accurate to a meter
[08:27] <fsphil> postgresql was the fault
[08:27] <fsphil> well, it's configuration anyway
[08:28] <fsphil> -'
[08:28] <Upu> if we had stayed at that service station we'd have seen it daveake
[08:28] <fsphil> ooh number10, did you record the signal from pie1 yesterday?
[08:28] <daveake> fsphil Maybe not - can't find what i thought I remembered
[08:28] <daveake> It's my age :D
[08:29] <number10> fsphil: recorded from the point were serever went down
[08:29] <daveake> Upu Yes, I know :)
[08:31] <fsphil> can I get a copy of that pretty please - I can restore the missing bits
[08:31] <daveake> That would be great
[08:31] <number10> yes, fsphil just tring to locate it
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[08:38] <Upu> right back to reality best hit tescos
[08:38] <daveake> have fun with that :)
[08:39] <fsphil> reality? :)
[08:39] <fsphil> visiting tesco is like stepping into a sci-fi world full of strange creatures
[08:40] <daveake> and that's just the Buzz Lightyear section of the toy aisle
[08:41] <daveake> (an area I know well) lol
[08:42] <fsphil> haha
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[08:43] <number10> fsphil: just uploading audio to server - I do have a local copy of the pictures if you want me to stck them there too
[08:43] <fsphil> oh please do
[08:43] <number10> ok - let you know when dome
[08:44] <fsphil> thanks
[08:44] <LazyLeopard> fsphil: Blade Runner comes to mind...
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[08:50] <navrac> right - the sun is out , the wind is dropping to a half reasonable level. I'm going to inflate ozzie3
[08:51] <fsphil> ooh pico?
[08:51] <navrac> oversized pico - butyes
[08:51] <navrac> upu - is ozzie3 still valid on spacenearus?
[08:53] <number10> he has gont to tescos navrac
[08:54] <number10> gone
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[08:56] <daveake> I smell bacon
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[08:58] <navrac> can anyone else check ozzie3 on habhub to see if its valid or do i need to do a new payload doc?
[08:58] <Darkside> they're all out..
[08:59] <Darkside> i've had this problem before, but worse
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[08:59] <Darkside> because when we launch, its like 3am your time
[08:59] <daveake> Can't you just run the tracker and see if it appears on the map?
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[09:00] <daveake> though it probably won't
[09:00] <navrac> there was old data uploaded during testing - So it will ignore all packets with acount less than 200
[09:00] <daveake> OK, but you can look at the log
[09:00] <navrac> which is about an hour or so
[09:00] <daveake> And see if it says "no document for payload ..."
[09:00] <fsphil> one sec
[09:01] <Darkside> yeah the stuff with the packer number is a pain in the ass
[09:01] <Darkside> packet*
[09:01] <fsphil> same document as before navrac ?
[09:01] <navrac> well if i launch someone will probably be back before it gets to a decent height anyway
[09:01] <navrac> yep
[09:01] <Darkside> still not a good idea to launch without it working
[09:02] <navrac> true, the wind is staying dropped at the moment.
[09:02] <fsphil> ozzie3 or ozzie4?
[09:02] <navrac> ozzie3
[09:02] <fsphil> there's one here for that, did it launch before?
[09:03] <daveake> I can map it even if there's no payload doc, as my program sniffs the log output, but yeah it's best it works properly :)
[09:03] <navrac> it was due to but it peed with rain all weekend
[09:03] <fsphil> aah ha
[09:03] <fsphil> I'll update the dates then
[09:03] <navrac> thanks
[09:04] <navrac> I suspect it will burst really early - I'm not convinced about my heptax sealing techniques
[09:04] <Darkside> navrac: if you've got the count problem, then i'd start the tracker early
[09:05] <navrac> well if the data was cleared off the display last week it may have reset the count - to be honest i have no idea how habhub works
[09:05] <fsphil> try now
[09:05] <navrac> I'll start it in 5 mins and then fill the balloon
[09:05] <navrac> ok brb
[09:07] <daveake> Just received the 5th call so far re the notam
[09:07] Action: fsphil checks email
[09:07] <daveake> :)
[09:07] <fsphil> I'm sure he doesn't work on a sunday
[09:07] <daveake> He's off till Wednesday
[09:08] <fsphil> ah well, have to wait on the battery pack arriving anyway
[09:08] <fsphil> and a less floaty balloon than at 1600
[09:11] <daveake> The 1200 is the new 1600
[09:12] <daveake> I wonder if they're less floaty, because altitude wise they seem to not be far behind the 1600
[09:12] <fsphil> I'm getting a 1000
[09:13] <fsphil> I'd like this one back :)
[09:13] <daveake> :)
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[09:14] bambi (bambi@CPE-121-208-209-137.mjcz2.cha.bigpond.net.au) joined #highaltitude.
[09:14] <navrac_office> payload running - but its going through its warm up procedure till it gets gps lock so its just txing morse
[09:17] <navrac_office> ok its on spacenearus - so I'm going to fill now
[09:18] <navrac_office> and the wind is picking up :-(
[09:18] <bambi> good luck
[09:18] <navrac_office> thanks
[09:18] <navrac_office> biab
[09:18] <bambi> *smiles*
[09:18] <navrac_office> its tricky doing launches on your own
[09:19] <bambi> yes I bet I will have to be on my own for my launch too so any tips later would be appreciated
[09:19] <Darkside> im gonna clear the US and gertman launches off the tracker
[09:19] <Darkside> hi bambi
[09:19] <bambi> good day darkside
[09:19] <fsphil> there was a german launch?
[09:19] <Darkside> nah
[09:19] <Darkside> just test data
[09:19] <Darkside> i'll also delete the chase cars
[09:20] <Darkside> ok done
[09:20] <Darkside> balloon traces still there
[09:20] <fsphil> ah
[09:20] <bambi> what is navrac's launch name please?
[09:20] <Darkside> OZZIE34
[09:20] <Darkside> 3
[09:20] <bambi> Thank you
[09:20] <daveake> I've taken screenshots but I don't know if Upu wants the balloon data left up
[09:20] <Darkside> bambi: where in australia are you again?
[09:21] <bambi> Queensland
[09:21] <Darkside> ahh
[09:21] <bambi> The state so far HAB free I think
[09:21] <Darkside> yeah i think so
[09:21] <bambi> cool to be the first
[09:21] <Darkside> theres been stuff in NSW, some non-notamed stuff in vic, and SA of course
[09:21] <bambi> yes
[09:21] <Darkside> oh wait, we did NOTAMed launches in vic too :P
[09:22] <Darkside> and NSW :D
[09:22] <Darkside> haha
[09:22] <Darkside> forgot that
[09:22] <bambi> well I powered up the arduino today - so slowly getting there
[09:22] <Darkside> horus has launched from 2 states, buy flown through 4
[09:22] <Darkside> SA, VIC, ACT, NSW
[09:22] <bambi> cool
[09:22] <Darkside> i think we flew through ACT anyway..
[09:23] <bambi> I have to go about 300km inland to launch it seesm - lest I end up in the Coral Sea
[09:23] <Darkside> yeah
[09:23] <Darkside> thats going to be your main problem
[09:23] <bambi> so a big day
[09:24] <Darkside> yeah
[09:24] <Darkside> what are you launching for?
[09:24] <Darkside> school/uni project? or just for fun
[09:24] <bambi> the reason?
[09:24] <bambi> mainly image aquision
[09:24] <bambi> also data
[09:24] <Darkside> ship the payload here :P
[09:24] <bambi> haha
[09:25] <bambi> that would be too easy
[09:25] <Darkside> ship youself here?
[09:25] <bambi> I would love to watch one of your launches
[09:25] <Darkside> the chase is more interesting than the launch imo
[09:25] <Darkside> recovery is fun
[09:25] <bambi> well the whole thing
[09:26] <Darkside> yeah
[09:26] <daveake> "recovery is fun"
[09:26] <daveake> Weeeellll ....
[09:26] <daveake> :D
[09:26] <fsphil> uhoh
[09:26] <Darkside> well, get to adelaide and i'm sure we can organise something
[09:26] <Darkside> daveake: hjaha
[09:26] <bambi> I have seen James May 'Man's Lab - and thats what got me interested - men cant have all the fun *smiles*
[09:26] <Darkside> daveake: hey, terry had a fun time
[09:26] <daveake> oh?
[09:26] <Darkside> swimming 200m out to sea
[09:26] <daveake> Oh yeah, I remember now :)
[09:26] <Darkside> daveake: havent you seen the Horus 8 stuff?
[09:26] <Darkside> yeah :P
[09:27] <daveake> Briefly a while back
[09:27] <Darkside> http://projecthorus.org/?page_id=1497
[09:27] <daveake> But yes, I enjoy the recovery the most. In general :)
[09:27] <bambi> I just hope I can recover
[09:28] <fsphil> my legs have just about recovered from the last one
[09:28] <bambi> not having internet out west will be a challenge tracking
[09:28] <Darkside> bambi: what radios do you have for tracking?
[09:28] <Darkside> you don't need internet for tracking :P
[09:28] <Darkside> we don't use spacenearus at all during our chases
[09:28] <bambi> Yaesu VR-500 ICOM R-IC10 communication receivers
[09:29] <bambi> how can I track without spacenear.us?
[09:29] <Darkside> separate software
[09:29] <Darkside> + oziexplorer for maps
[09:29] <bambi> oh
[09:29] <daveake> That's a classic, Darkside
[09:29] <Darkside> daveake: yeah...
[09:30] <daveake> I couldn't see the payload yesterday till I literally walked into it
[09:30] <daveake> I was just following a satnav thing on my phone
[09:30] <Darkside> lol
[09:30] <Darkside> we DF them usually
[09:30] <Darkside> 3-element yagi + R10
[09:30] <daveake> It was buried in the green stuff
[09:30] <Darkside> bambi: if you had a transceiver we could have sorted out a cutdown payload
[09:30] <daveake> You really couldn't see it till you were right next to it
[09:31] <bambi> I have no licience
[09:31] <daveake> I walked into the line
[09:31] <Darkside> bambi: ahh
[09:31] <Darkside> helps to have a licence :P
[09:31] <Darkside> ok, back later
[09:31] <Darkside> dinnertime
[09:31] <bambi> yes I am sure
[09:31] <bambi> happy munching
[09:31] <Darkside> nom
[09:32] <fsphil> breakfast time here
[09:32] <bambi> gee everyone is munching *smiles*
[09:33] <bambi> < looks for munchies
[09:33] <navrac_office> ok filled and walking it to the launch site
[09:33] <bambi> how exciting
[09:33] <daveake> What freq ?
[09:35] <bambi> navrac> I see you on spacener.us here in Queensland
[09:39] <navrac_office> oh dear - not enough free lift for the wind conditions
[09:39] <bambi> eek!
[09:40] <navrac_office> to get it to float without overdoing the superpressure risking a burst i could only have 5g free lift
[09:40] <navrac_office> cut it too fine
[09:41] <bambi> what can you do?
[09:42] <navrac_office> not much - at this altitude I will loose signal in a couple of miles time - I guess drive off after it and see if it comesd down
[09:43] <bambi> oh so its up?
[09:43] <bambi> I hope it works out
[09:43] <Darkside> drive!
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[09:43] <Darkside> looks like its heading for the coast
[09:43] <bambi> 271m now
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[09:44] <navrac_office> yep - I suspect due to the odd shape of the balloon there is more drag than I anticipated
[09:44] <bambi> *grrr*
[09:45] <daveake> what freq navrac_office?
[09:45] <bambi> i see no predicted flight path on my spacenear.us
[09:46] <navrac_office> 434.204 - but its a lot weaker than it ought to be
[09:46] <daveake> ok ta
[09:46] <daveake> just found the email, sorry :)
[09:46] <navrac_office> in theory it should float at 7,800m
[09:47] <navrac_office> but I suspect it will be out of my range by the time it gets there
[09:47] <daveake> It's probably going up slower than PAVA came down :D
[09:47] <bambi> well 705 m last data
[09:48] <navrac_office> in low power mode the gps is about =/- 50m accuracy
[09:49] <navrac_office> if it doesnt get higher soon it will be in my blind spot
[09:49] <bambi> drat
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[09:54] <navrac_office> well its made it to 1km - but it seems a terribly weak signal
[09:55] <bambi> can others help with rerception?
[09:55] <navrac_office> not until it gets higher
[09:55] <Darkside> not that low
[09:55] <G8KNN-Jon> nothing here in Cambridge
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[09:56] <navrac_office> I suspect there is a transmitter fault
[09:56] <navrac_office> I should have used an rfm from another batch when I replaced it
[09:59] <fsphil> oi noi!
[10:00] <Upu> I've taken screen shots
[10:00] <Upu> can clear tracker for me
[10:00] <Upu> someone launchign ?
[10:00] <navrac_office> ozzie3 is up - but with poor tx
[10:00] <Upu> oo I see a pico
[10:00] <Upu> not even set up my radio
[10:00] <Darkside> Upu: yeah don't worry about clearing it yet
[10:00] <Darkside> also we shoudl have the horus 25 cutdown video soon
[10:00] <Darkside> the guy is working on it at the moment
[10:01] <navrac_office> yep - sadly it seems to be a really low signal
[10:01] <bambi> Upu good morning *smiles*
[10:01] <Upu> hey bambi
[10:01] <Darkside> iv'e noticed the RFM modules don't seen to be putting out their specified output power
[10:01] <Upu> be with you shortly
[10:01] <Upu> chinese watts
[10:01] <Darkside> the 25mW payload ddn't seem to be putting out 25mW
[10:01] <navrac_office> it seems to vary from batch to batch
[10:01] <Darkside> next time i'm just setting it to 100mW and being done with it
[10:01] <Darkside> we run it outside the ISM band anyway
[10:01] <Darkside> so meh
[10:02] <Upu> what frequency ?
[10:02] <navrac_office> whilst i was after a slow ascent rate to allow it to float - going up so slow is painful
[10:03] <Darkside> 431.5MHz
[10:03] <navrac_office> 434.20499
[10:03] <Darkside> oh, his
[10:03] <navrac_office> i'm loosing it here
[10:03] <navrac_office> so i dont think you will have much chance
[10:06] <navrac_office> 2,200m
[10:07] <Upu> unsurprisingly nada here
[10:08] <navrac_office> if it gets higher it should start clearing my blind spot
[10:09] <navrac_office> oops its just flying over sizewell b power statioin
[10:09] <Upu> lol
[10:09] <navrac_office> literally right over it
[10:09] <Upu> see if it goes up
[10:09] <LazyLeopard> Hmmm... New dl-fldigi doesn't show any OZZIE configs... :/
[10:10] <LazyLeopard> ...and doesn't seem to have a manual override either. :(
[10:10] <fsphil> it should be there, the doc is fine
[10:10] <navrac_office> it looks like its clearing my blind spot
[10:12] <LazyLeopard> I have BUZZ8,PIE1,UAVA,PAVA,AVA,Helioss,Helioss 2,PYSY,VORTEX2,VORTEX and that's it...
[10:13] <navrac_office> missed sizewell b by 500m
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[10:15] <LazyLeopard> Ah. Wireless notwork kicked...
[10:15] <bambi> its over the coast - is it predicted to return>
[10:15] <LazyLeopard> Laptop helpfully doesn't say it's not connected...
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[10:16] <navrac_office> nope - next stop is a fly by of amsterdamn in a few hours time
[10:17] <fsphil> drat
[10:17] <navrac_office> the solar power is working well
[10:17] <fsphil> what's the long term prediction?
[10:17] <navrac_office> finland?
[10:17] <Upu> }
[10:18] <fsphil> I can't remme
[10:18] <fsphil> remember the site for nasa predictions
[10:18] <fsphil> or type
[10:18] <navrac_office> to be honwest i just want to know at what height it bursts/floats so I can check my maths for the superpressure
[10:18] <navrac_office> and whether the seals on the heptax hold
[10:19] <navrac_office> the ascent rate is spot on for a float at 7800m
[10:20] <fsphil> there are a few global tuners stations in holland
[10:20] <navrac_office> im not sure the signal will be strong enough - im only 20km away and struggling
[10:21] <navrac_office> i should have used a new rfm from a different batch
[10:27] <bambi> Oh solar power cool - I am considering this also - love to chat to you about that or do you have a blog?
[10:28] <Upu> Some stills from the GoPro yesterday : http://imgur.com/a/PfQ7n
[10:30] <navrac_office> never got round to a blog - these are lightweight flexible solar cells about 3gram and give me about 60mA at 3.5v
[10:31] <navrac_office> 4400m
[10:32] <navrac_office> 4500m
[10:33] <navrac_office> this tx is really irritating - its going so well otherwise
[10:33] <navrac_office> running on 100% solar - perfect ascent rate and only partial packets :-(
[10:34] <navrac_office> local qrnm is wiping out one bit in most packets
[10:35] <bambi> solar > Oh OK Thank you
[10:38] <navrac_office> frequency is very stable - I've not had to retune and the drift has been less than 200hz on fldigi
[10:38] <Upu> still nothing here navrac
[10:38] <Upu> 434.204 ?
[10:38] <Upu> its in my woo woo zone
[10:38] <navrac_office> i wish someone else would get it -
[10:38] <navrac_office> yep 434.204.990 dial
[10:39] <number10> I cant receive anything here - M0MDB on map
[10:39] <daveake> Zero here too
[10:39] <navrac_office> big question is will it float or will it burst - can you really seal heptax with the wifes iron...
[10:40] <navrac_office> 5500m
[10:40] <Upu> I was trying to get to sleep last night and sure I could hear RTTY
[10:40] <Upu> its bad for you
[10:40] <daveake> lol
[10:41] <navrac_office> you should train yourself to read rtty - maybe its god passing on a message - or aliens
[10:41] <Upu> well amusingly nerdy Dave noticed something didn't sound quite right with the RTTY from UAVA
[10:42] <Upu> Because I'm transmitting 10 nulls before each sentence
[10:42] <daveake> :D
[10:42] <Upu> just by listening to it :)
[10:43] <Upu> btw anyone any feedback on the drift / signal from UAVA ?
[10:43] <navrac_office> 5600m
[10:43] <Upu> thats quite high for a pico
[10:43] <daveake> I could tell PIE1 was transmitting binary as well as the telemetry :)
[10:43] <navrac_office> well its about 3x the volume of a bought in pico
[10:43] <Upu> why can no one pick it up ?
[10:44] <navrac_office> too weak
[10:44] <Upu> are you using a Yagi ?
[10:44] <navrac_office> when i launched it as ozzie2 the tx was weak so i replaced it with another rfm - but from the same batch
[10:45] <navrac_office> very low poer ouytput
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[10:45] <Upu> those from me ?
[10:45] <navrac_office> can't remember - i've bought loads from all over the palce
[10:45] <navrac_office> 5900m
[10:45] <Upu> PAVA had one of mine in
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[10:47] <navrac_office> 600m and a packet without local interference for once
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[10:48] <navrac_office> drifting like buggery duriong the sentance now
[10:49] <Upu> impressive altitude
[10:49] <navrac_office> should make 8km
[10:52] <Upu> I see it
[10:52] <Upu> 434.207.1 here
[10:52] <bambi> yay!
[10:52] <Upu> damn I need that Yagi up there
[10:53] <Upu> let me try the HAB Amp on it
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[10:54] <navrac_office> 6600m and drifty
[10:56] <Upu> everything is still in boxes meh brb
[10:57] <navrac_office> looks like its entered a float at 6900m
[10:58] <navrac_office> need more gain!!!!
[11:00] <Upu> can't see it
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[11:02] <daveake> Managed to get 2 very faint lines at the right gap
[11:03] <daveake> Only lasted about 30 secs then went
[11:03] <navrac_office> I've lost it - can just see it on the waterfall but nothing decoding
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[11:05] <navrac_office> thers 30 secs tx then 20 seconds silence#
[11:06] <navrac_office> its drifting too fast for the afc
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[11:11] <nick_> Can someone remind me of the link for the pie1 photos?
[11:11] <bambi> http://sanslogic.co.uk/ssdv/live
[11:11] <bambi> ?
[11:12] <navrac_office> 8500m!
[11:12] <nick_> Cheers
[11:12] Nick change: daveake_ -> daveake
[11:12] <navrac_office> oops sorry 7500m
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[11:16] <navrac_office> floating stable at 7300m
[11:17] <bambi> I think its so cool you can send these to other countries - hard in my meck of the woods
[11:17] <navrac_office> yehah a stable float!!
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[11:18] <navrac_office> batteries still at 100% -
[11:19] <signaleleven> congrats navrac
[11:19] <signaleleven> how's the drifting now?
[11:19] <navrac_office> shame about the transmitter - but i got the info i wanted
[11:19] <bambi> navrac> may I ask wher you sourced your solar cells?
[11:19] <navrac_office> stable
[11:19] daveake (~daveake@ left irc: Ping timeout: 240 seconds
[11:19] <navrac_office> select solar
[11:19] <bambi> Thank you
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[11:24] <navrac_office> I've lost the signal at about 60miles range
[11:24] <navrac_office> spoke too soon
[11:26] <Randomskk> is no one uploading sentences?
[11:27] <number10> no one can receive it
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[11:29] Nick change: daveake_ -> daveake
[11:30] <daveake> ping Upu
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[11:32] <navrac_office> it is very weak
[11:32] <navrac_office> i can only get partials due to local qrm
[11:32] <navrac_office> enough to see its floating at 7200m about 50 miles off the coast
[11:33] r2x0t (~r00t@b607.praha.cas.cz) joined #highaltitude.
[11:36] <daveake> Part of the latex that came down with PAVA yesterday - http://www.flickr.com/photos/daveake/7573896246/in/photostream
[11:37] <daveake> Total weight 1.1kg
[11:39] <nick_> daveake: how did you get that?
[11:39] <daveake> sorry, get what exactly?
[11:40] <signaleleven> We got way more latex back with Stratospera 4 http://www.flickr.com/photos/38466352@N04/7279440676/in/set-72157629918816300
[11:40] <nick_> PAVA's balloon?
[11:40] <daveake> It was attached to PAVA
[11:40] <nick_> You found PAVA?
[11:40] <daveake> That photo is one piece of it
[11:40] <daveake> Yes
[11:40] <number10> fsphil: daveake, I have failed at several attemps to ftp the audio, here are the pictures anyway http://bowkis.com/temp/
[11:40] <nick_> How did you get to it?
[11:41] <daveake> Up the A34 1 junction, back onto the A34 south, parked up in a layby 155m from the payload
[11:41] <daveake> Then came the tricky bit ...
[11:41] <daveake> ... 120m of triffids
[11:41] <nick_> While it was pissing it down?
[11:41] <daveake> Thanks number10 :)
[11:42] <number10> I'll try the audio again sometime its 91M
[11:42] <daveake> Well, not as much as it had been, but yes
[11:42] <nick_> And that part of the balloon was still attached?
[11:42] <daveake> 1.1kg was still attached
[11:43] <daveake> That's not all of it!
[11:43] <nick_> that'swhy it was so slow?
[11:43] <daveake> But that part looked like it had once been a parachute :)
[11:43] <daveake> I'm sure that's the case
[11:44] <daveake> Launch of PIE/UAVA/BUZZ - http://youtu.be/OnmRudVVq_U
[11:44] <signaleleven> you think so? I thought that random latex weighing 1 kg was more of a dead weight that a source of drag...
[11:44] <nick_> Any clue why the sudden speed up happened?
[11:44] <daveake> signaleleven lol Nice pic :)
[11:44] <daveake> I think it was attached at 2 points, then one broke
[11:45] <number10> thats a hel of a lot of latex signaleleven - I bet you head had a funny smell for a while
[11:45] <signaleleven> ah, that makes sense
[11:45] <signaleleven> number10 I'm not the one beneath it, I'm right nearby and I could smell it from the distance
[11:45] <daveake> IME a lump of latex in a stream lets the payload land at up to 10m/s
[11:46] <signaleleven> that was a multiballoon (3, tied together) launch and we recovered almost 2, mostly intact. The third exploded in a "cleaner" way :)
[11:46] <nick_> daveake: did you like the beer?
[11:46] <daveake> Ah, not drunk it yet!
[11:47] <daveake> Soon will :)
[11:47] <nick_> cool
[11:47] <daveake> Now here's a clean break - http://www.flickr.com/photos/daveake/7571491018/in/photostream
[11:47] <signaleleven> dave: sure, it's better to have a "sail" that a lump, that's dead weight!
[11:48] <signaleleven> daveake: this wasn't a parachute at all (Stratospera1, first flight) http://www.stratospera.com/archives/1263
[11:48] <daveake> :D
[11:49] <signaleleven> anyway, do you have a website with your SSDV setup?
[11:49] <signaleleven> I'm interested :)
[11:49] <daveake> Not yet, but I will write it up
[11:50] <signaleleven> thanks
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[11:50] <daveake> That worked really well
[11:50] <signaleleven> yep, looks fantastic
[11:50] <signaleleven> i'm not familiar with SSDV, does it have any kind of FEC?
[11:51] <daveake> yes
[11:51] <nick_> daveake: is it cool if I use some of your photos on google+?
[11:51] <daveake> fsphil is the expert btw :D
[11:51] <daveake> nick_ Sure
[11:51] <nick_> thanks
[11:51] <signaleleven> cause last flight we tried spewing down jpegs in RTTY with now FEC whatsoever and that didn't work out nicely :D (as predicted, it was more of a stunt)
[11:51] <signaleleven> we managed to get 2 full frames, and lots of gibberish
[11:52] <daveake> Yeah, that won't work
[11:52] <daveake> I used fsphil's software
[11:52] <daveake> He has a program that converts the jpeg to a block-based format with FEC in each block
[11:52] <signaleleven> google's not helping
[11:52] <daveake> Then my tracker program sends out each block
[11:52] <signaleleven> link?
[11:53] <daveake> fsphil here on IRC
[11:53] <signaleleven> I'll ask him
[11:53] <daveake> http://ukhas.org.uk/guides:ssdv
[11:54] <signaleleven> yep, kind of what I was imagining? but no reason to reinvent hot water
[11:55] <daveake> Indeed. I borrowed his kettle
[11:55] <signaleleven> (plus it would take me ages to fully understand the thing ;) )
[11:58] <signaleleven> cool, will look into it
[11:59] <signaleleven> how long did sending an image take?
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[12:01] <daveake> A few minutes. Varies with the jpeg compression of course.
[12:06] <navrac_office> its still on the waterfall - cant decode though
[12:12] <fsphil> thanks number10, I can setup an ftp server if you're still having problems
[12:12] <costyn> daveake: darn... was busy yesterday all day; missed your Pi flight...how did it go?
[12:12] <number10> yes, please fsphil
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[12:13] <daveake> Very well :)
[12:14] <costyn> good good
[12:14] <daveake> Got plenty of pictures, some really good ones, and almost reach 40km
[12:14] <costyn> very cool
[12:14] <daveake> We did kill the image server at one point :D
[12:14] <fsphil> *ahem*
[12:14] <costyn> hehe... too many interested people?
[12:15] <daveake> Think so
[12:15] <fsphil> it slightly ran out of memory
[12:15] <fsphil> fixed now :)
[12:15] <daveake> :)
[12:15] <costyn> cool
[12:16] <costyn> gonna make a blogpost writeup about it?
[12:17] <daveake> Yes
[12:17] <costyn> or do you ahve some of the good pics on flickr ?
[12:17] <daveake> Might need to do something to stop the server blowing up when it gets hack-a-day-ed
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[12:18] <fsphil> cloudflare might help
[12:18] <fsphil> although they don't cache dynamic pages
[12:19] <daveake> http://www.flickr.com/photos/daveake/sets/72157630584759530/
[12:20] <daveake> Think I've seen something about it making static copies of dynamic pages
[12:20] <griffonbot> Received email: navrac "[UKHAS] OZZIE3 heading towards the Netherlands (Sunday 15th)"
[12:23] Action: costyn is in NL
[12:24] <costyn> daveake: thx for the link
[12:24] <MrScienc1Man> catch ozzie :D
[12:25] <costyn> navrac_office: I'll set up my gear later when it's in range
[12:25] <jdtanner> navrac: I think i can just about make something out&but it is very very faint
[12:26] <jdtanner> maybe https://www.google.co.uk/search?hl=en&safe=off&sa=X&ei=0rYCUMW9H86a0QWs54WzBw&ved=0CEMQvwUoAQ&q=pareidolia&spell=1
[12:29] <bambi> sleep time for me byes everyone thanks for the updates navrac
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[12:32] <fsphil> whoever invented ftp deserves a slap
[12:32] <number10> fsphil: I am having a go with consol - maybe working so hold on for now
[12:33] <fsphil> k
[12:34] <fsphil> if all else fails you can use scp
[12:41] <Upu> http://www.youtube.com/watch?v=KGLB9-LdpYM&feature=youtu.be
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[12:47] <futurity> hi, i take it communication was lost with ozzie3 this morning?
[13:01] <costyn> navrac_office: is that 4PM UK time or CET?
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[13:04] <futurity> Its now 4pm UK time
[13:05] <costyn> futurity: the time that it's expected to be in range in NL?
[13:06] <futurity> Sorry I've no information about the current launch
[13:07] <Upu> I'd just have a listen out for it if you're in that area
[13:09] <futurity> Upu: I was wondering if it was you who was making / selling the aerial RF amplifiers. I have a good Yagi, but a lot of the signal is lost due to the long cable length
[13:11] <Upu> I am making Darksides HABAmp yes
[13:12] <futurity> Cool, although I know very little aboutt this HAB Amp
[13:12] <Upu> basically its a saw filter and an ampliyier
[13:13] <Darkside> yes
[13:13] <Darkside> thats about it
[13:13] <Upu> ah hear it from the man himself
[13:13] <futurity> could it be used to boost the 434MHz range at the aerial before its sent to the reciever
[13:13] <Darkside> uh
[13:13] <Darkside> you mean as a masthead amp?
[13:13] <futurity> Darkside: Hi
[13:13] <futurity> Yes i think that's the term for it
[13:13] <Darkside> yes, it could be used as a masthead amp. you could inject power up the coax to drive it
[13:14] <Darkside> but it means that antenna can only be used for receive
[13:14] <futurity> I can track from a fair distance, with a 12 element yogi, but its in the loft so in some directions the signal isn't as strong
[13:14] <Darkside> turn the yagi then
[13:14] <Darkside> you shouldn't be using an amp to correct for bad antenna placement
[13:15] <futurity> no i mean i turn the yogi to face it, but the brickwork of my house and other houses weakens the signal
[13:15] <futurity> true, but I have no choice unfortunately
[13:15] <Darkside> ahh
[13:16] <futurity> i wish I could stick it up on a high pole with a rotator on it, but unfortunately budget / wife prevents that
[13:17] <futurity> I'm not launched yet, after helping out for around two years, but tracking helps me feel part of it still
[13:17] <futurity> just looking to improve reception where possible, but if using this as a masthead amp isn't going to change much, perhaps I'd be better of not getting one
[13:18] <Upu> what are you using at the moment ?
[13:19] <navrac_office> costyn - sorry for the delay - painting windows - its 4pm UTC
[13:19] <futurity> 12 element Yagi turned to 450MHz + Yaesu ft-790r + lots of cable to get from loft on other side of house to the garage where the rid and pc is
[13:19] <navrac_office> hard to guess exactly but between 4pm and 6pm
[13:20] <Upu> why not switch it to a colinear and stick it on the roof ?
[13:20] <futurity> surely that wouldn't have much gain?
[13:21] <Darkside> depends on the volinear
[13:21] <futurity> volinear?
[13:21] <Darkside> colinear
[13:21] <futurity> oh i see
[13:21] <Darkside> i have a colinear with 12dB of gain on 70cm
[13:21] <Upu> no it wouldn't but its omni and you don't have to mess about rotating it, and height will win
[13:21] <Darkside> of course that means a narrow beam pattern
[13:21] <futurity> oh i see
[13:21] <Darkside> but works for stuff on the horizon well
[13:22] <Upu> look at the performance I get out of 7db colinear
[13:22] <futurity> so having a colinear up high (and a good one) will beat yagi within the roof space
[13:22] <Upu> I would have said yes
[13:22] <Upu> I mean I can't say for sure
[13:22] <Upu> but my gut feeling is yes
[13:22] <futurity> cool
[13:23] <Upu> not expensive either
[13:23] <Upu> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&_trksid=p4340.l2557&item=230822428402&nma=true&rt=nc&si=ssy0E4omvsXNhxuX7EbEdBOjz4s%253D&sspagename=STRK%3AMEWAX%3AIT&orig_cvip=true&rt=nc#ht_511wt_1150
[13:23] <futurity> I do have a mag mount colinear 434Mhz, but I take it that you're talking more of a dipole?
[13:23] <Upu> http://www.radioworld.co.uk/catalog/w-50_watson_2m_70cm_base_station_vertical_antenna-p-1947.html
[13:23] <Upu> thats what I use
[13:24] <Upu> Apex Alpha use this one : http://www.radioworld.co.uk/catalog/w-30_watson_2m_70cm_base_station_vertical_antenna-p-1946.html?osCsid=ea07f262b70bb5d373db048d3c4eb4cf
[13:24] <Upu> and daveake uses http://www.radioworld.co.uk/catalog/w-300_watson_2m_70cm_base_station_vertical_antenna-p-1948.html?osCsid=ea07f262b70bb5d373db048d3c4eb4cf
[13:24] <Upu> other mades of antenna are availble
[13:24] <Upu> :)
[13:25] <futurity> Fantasic
[13:25] <futurity> I'll go do some research I think
[13:25] <futurity> not talking silly money
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[13:25] <Upu> one of those mounted high with some low loss coax and you're good
[13:25] <futurity> as omni directional and 70/2m :)
[13:25] <Upu> if you're feeling brave you can make one
[13:26] <Upu> for about £5
[13:26] <Upu> if you have some old coax lying about
[13:26] <futurity> I do have a fair amount of Coax around
[13:26] <futurity> :)
[13:27] <futurity> £59.95 is a reasonable compromise
[13:27] <Upu> http://www.srgclub.org/CollinearAnt-HomeBrew.html
[13:27] <futurity> although if i have to pay someone to install it, I bet its better to go for the most expensive one
[13:27] Wouter-[pa3weg] (~wouter@5354D2D3.cm-6-5d.dynamic.ziggo.nl) joined #highaltitude.
[13:27] <Upu> well I find the antenna guys are happy to work for cash
[13:27] <futurity> that's very good to know :)
[13:27] <Upu> the ones I use anyway
[13:28] <futurity> I tai fit this can be install on the top of a pole if necessary?
[13:28] <futurity> just that I don't have much roof hight compared with neighbours
[13:28] <Upu> http://ava.upuaut.net/files/watson.jpg
[13:29] <Upu> I took the old TV antenna off that pole and stuck the Watson on it
[13:30] <Wouter-[pa3weg]> hi all
[13:31] <Wouter-[pa3weg]> is OZZIE3 still airborne?
[13:31] <JFS1> Great flights yesterday, Anthony.
[13:31] <Upu> we have no reason to believe its not Wouter-[pa3weg]
[13:31] <Upu> so if you could have a listen out for it I'm sure navrac would be very grateful
[13:31] <Upu> thanks JFS1
[13:31] <Upu> was a fun day
[13:31] <Wouter-[pa3weg]> ok, just read the E-mail, but my RX is not at home
[13:31] <Upu> ok
[13:31] <Wouter-[pa3weg]> need to drive to get it
[13:32] <Upu> well if yo uknow any one with a Yagi, its not transmitting correctly
[13:32] <JFS1> I was really glad I was able to try out my new FT-817 and got it working
[13:32] <Upu> very weak
[13:32] <Upu> did you get any packets ?
[13:32] <Upu> I've not had chance to look yet
[13:32] <Wouter-[pa3weg]> I have a 11 el crossed yagi at 100m above sea level on the coast
[13:32] <JFS1> Got a few but not that many - had to stand in the rain on my balcony to get a decent signal
[13:32] <Upu> that should do the trick
[13:32] <Upu> lol
[13:32] <Upu> beyond the call but thx
[13:33] <JFS1> If someone could switch off the tap in the clouds it would be nice to have a cloud free flight!
[13:33] <Upu> indeed
[13:33] <Wouter-[pa3weg]> any predictions of when it touches down? otherwise I will get in the car and go ;)
[13:33] <JFS1> Sounds like Dave got soaked
[13:34] <g4dpz> ozzie3 frequency please
[13:34] <Upu> 1 sec Wouter-[pa3weg] I'll run one based on last know location
[13:34] <Upu> 434.200
[13:34] <Wouter-[pa3weg]> hi dave!
[13:34] <g4dpz> hi wouter
[13:34] <g4dpz> busy with fc?
[13:35] <g4dpz> head down in java here!
[13:35] Action: nick_ should stop being lazy and get my mbed talking to my gps
[13:35] <Upu> afternoon nick_
[13:35] <nick_> hi
[13:35] <Wouter-[pa3weg]> yup, but considering to help out OZZIE3 by pointing the Delfi-C3 RX at it
[13:35] <Upu> thanks for you help yesterday
[13:35] <Upu> much appreciated
[13:35] <nick_> You're welcome, thanks for the lift and teaching me stuff
[13:35] <Upu> prediction is running bear with me
[13:35] <nick_> Was there any good video?
[13:36] <g4dpz> swinging the big beam here
[13:36] <Upu> http://www.youtube.com/watch?v=KGLB9-LdpYM&feature=youtu.be
[13:36] <Upu> uploading some more shortly of the landing
[13:37] <nick_> Cool
[13:37] <Upu> Wouter-[pa3weg]
[13:37] <Upu> http://habhub.org/predict/#!/uuid=0d76bb5e34cf26df8c1bf34fbf2fe1b428b664a5
[13:38] <Upu> Delft
[13:38] <number10> fsphil: daveake audio is no there - same place. there will be some strange frequency drifting - thats me attempting to retune - not a lot in the way of spaces
[13:38] <number10> now
[13:39] <JFS1> I found it a lot easier to track Buzz than UAVA yesterday - any explanation why that might be?
[13:39] <Wouter-[pa3weg]> OK, i´ll get in the car
[13:39] <Wouter-[pa3weg]> talk to you later
[13:39] <Upu> thanks
[13:40] <Upu> possibly as UAVA was on 075 which is alot noisier
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[13:40] <JFS1> I thought that might be the explanation
[13:41] <fsphil> downloading, thanks number10
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[13:56] <fsphil> uploading now
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[14:08] Wouter-[pa3weg] (~wouter@cust-95-128-95-33.breedbanddelft.nl) joined #highaltitude.
[14:11] <Wouter-[pa3weg]> does anyone have info for OZZIE3 data format
[14:11] <Wouter-[pa3weg]> I hear a carrier now...
[14:11] <Darkside> Wouter-[pa3weg]: use dl-fldigi
[14:11] <Wouter-[pa3weg]> fired up
[14:11] <Darkside> and select OZZIE3 from the dropdown list
[14:12] <Darkside> are you running it in HAB mode?
[14:14] <Wouter-[pa3weg]> yes
[14:14] <Wouter-[pa3weg]> and pressed autoconfig on OZZIE3
[14:15] <Darkside> cool
[14:15] <Darkside> that should have it setup to decode then
[14:15] <Darkside> if you're not seeing modulation, then it probably isn't the payload
[14:15] <Wouter-[pa3weg]> but the shift used in the E-mail is not the same as the autoconfig
[14:15] <Darkside> oh
[14:15] <Darkside> are you seeing modulation on the signal?
[14:16] <Wouter-[pa3weg]> looks like it
[14:16] <Darkside> cool
[14:16] <Darkside> whats the autoconfigure setting the shift to?
[14:16] <fsphil> if it's an old version of dl-fldigi it might set the shift at 23hz
[14:16] <Darkside> yeah was about to suggest that bug might be present..
[14:16] <Wouter-[pa3weg]> can someone point me at the right baudrate and shift
[14:16] <Wouter-[pa3weg]> will try 23hz
[14:17] <fsphil> it won't be 23hz
[14:17] <Darkside> its 312Hz shift, ish
[14:17] <Darkside> it'll have drifted slightly
[14:17] <fsphil> the doc says 350hz
[14:17] <Darkside> not sure on the baud rate
[14:17] <fsphil> but yea you'll have to adjust anyway
[14:17] <fsphil> 50 baud
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[14:19] <Wouter-[pa3weg]> any latest update on its position?
[14:19] <Darkside> nope
[14:19] <Darkside> somewhere between the UK and the netehrlands
[14:20] <g4dpz_> any other launches due today?
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[14:23] <Wouter-[pa3weg]> I have a loud carrier originating from somewhere above the north sea
[14:23] <Wouter-[pa3weg]> but it has nog got much modulation on it\
[14:23] <Darkside> hrm
[14:23] <Wouter-[pa3weg]> it does drift
[14:23] <Wouter-[pa3weg]> UP
[14:23] <Upu> what frequency ?
[14:23] <Darkside> may or may not be it
[14:23] <Wouter-[pa3weg]> so lowering altitude
[14:23] <Wouter-[pa3weg]> 434.2062
[14:24] <Upu> sounds about right
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[14:24] <Darkside> really?
[14:24] <Upu> well it was on 434.205 before
[14:24] <Darkside> didn't it start at 434.200?
[14:24] <Darkside> ahh ok
[14:24] <Upu> no
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[14:24] <Darkside> i wonder why its stopped modulating then...
[14:24] <Upu> stick it in the middle of your dial and see if start to modulate I think it does 20secs on or something
[14:24] <Upu> ping navrac
[14:24] Nick change: Codeine -> Guest96090
[14:24] <Darkside> haha
[14:25] <Darkside> man the summon feature is cool
[14:25] <Darkside> i wonder how many times i can do that
[14:25] <Upu> don't be silly Mr Jessop :)
[14:25] <Darkside> :P
[14:25] <Darkside> wat
[14:25] <Darkside> bahaha
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[14:26] <Darkside> so yeah, it might not have actually emailed navrac :P
[14:26] <Randomskk> you guys know it emails jcoxon if you summon someone unknown right?
[14:26] <Darkside> BAHAHAHAHAHAHAHAA
[14:26] <Darkside> whoops
[14:26] <Upu> lol
[14:26] <Darkside> maybe he should turn that off
[14:26] <Upu> I'm hoping someone is pulling our leg
[14:26] <Randomskk> maybe people shouldn't use it frivolously :P
[14:27] <Darkside> there we go
[14:27] <Darkside> solved :P
[14:27] <Wouter-[pa3weg]> ok, holding here for modulation to appear...
[14:28] <Randomskk> yea I just double checked the script and it definitely still emails james.
[14:30] <Upu> where do we add our mail address ?
[14:30] <Randomskk> ~zeusbot/scripts/smtpmail.py
[14:30] <Upu> ok ta
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[14:38] <Wouter-[pa3weg]> still nothing
[14:38] <Wouter-[pa3weg]> but carrier is still there
[14:38] <Wouter-[pa3weg]> but at the horizon, so no high elevation anymore
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[14:44] <Upu> hmm doesn't sound right
[14:44] <Wouter-[pa3weg]> nope...but nothing else around that frequency
[14:44] <Upu> odd well possibly try again in an hour ?
[14:44] <Wouter-[pa3weg]> do they have another downlink? mobile phone?
[14:46] <Wouter-[pa3weg]> it occasionaly has small bursts of modulation
[14:46] <Wouter-[pa3weg]> but very rare and short
[14:46] <Wouter-[pa3weg]> not sure, but it does sound like RTTY, but it is only for 1 second or so
[14:48] Nick change: Elwell_ -> Elwell
[14:49] <Upu> no other downlink
[14:49] <Upu> its a pico payload very light
[14:49] <Wouter-[pa3weg]> ok
[14:49] <Upu> its 50 baud RTTY so it should be for about 15 seconds or so
[14:50] <Wouter-[pa3weg]> and is it continuous or burst?
[14:50] <Wouter-[pa3weg]> because the signal I see is always on
[14:50] <Upu> I don't know and navrac who's payload it is seems to be afk
[14:50] <Wouter-[pa3weg]> I understood that....pity
[14:51] <Upu> anyone got Navrac's phone number ?
[14:51] <Wouter-[pa3weg]> now listening 20m ASL, can try to move to 100m ASL
[14:51] <Upu> hang on see if I have it
[14:51] <Wouter-[pa3weg]> but that´s another building
[14:52] Elmar_PD3EM (~Elmar_PD3@ip4da77145.direct-adsl.nl) joined #highaltitude.
[14:52] <Elmar_PD3EM> Hey all!
[14:52] <Upu> ok I mailed him
[14:53] <Wouter-[pa3weg]> Hi Elmar
[14:54] <Elmar_PD3EM> Back from my holiday ;-) and just saw the mail from navrac
[14:55] <Wouter-[pa3weg]> can you RX something there?
[14:55] <Elmar_PD3EM> not yet....
[14:55] <Wouter-[pa3weg]> here it´s carrier only
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[14:56] <Wouter-[pa3weg]> ur QTH?
[14:56] <Wouter-[pa3weg]> here its Delft
[14:56] <Elmar_PD3EM> JO21jv, Brandwijk (Alblasserwaard)
[14:57] <Elmar_PD3EM> I see a carrier at 434.205.5 +1310 Hz
[14:59] <Upu> http://ava.upuaut.net/?p=315
[14:59] <Wouter-[pa3weg]> USB?
[14:59] <Upu> USB
[14:59] <Elmar_PD3EM> yep USB here
[15:00] <Wouter-[pa3weg]> any direction for that signal?
[15:01] <Wouter-[pa3weg]> nothing here, but 1khz higher
[15:01] <Upu> there is a posibility it could be over you
[15:01] <Elmar_PD3EM> I only have a omni (X-50) operational at the moment Wouter-[pa3weg]
[15:01] <Wouter-[pa3weg]> ok
[15:02] <Wouter-[pa3weg]> will try 90 deg elevation then ;)
[15:02] <Elmar_PD3EM> LOL
[15:02] <Upu> well if you have a hand held one I'd have a swign about :)
[15:03] <Wouter-[pa3weg]> too bad, its not at 90 deg ;)
[15:03] <Wouter-[pa3weg]> but I will assemble the arrow and check on the roof
[15:03] <Wouter-[pa3weg]> might be easier
[15:03] <Wouter-[pa3weg]> I? using one out of thee sat tracking stations here ;)
[15:05] <Elmar_PD3EM> you have some nice tracking systems ;-)
[15:08] <Elmar_PD3EM> it looks like the carrier has another signal 280 Hz down, but still too weak.....
[15:11] <Wouter-[pa3weg]> it moved further south accoring to my headings
[15:11] <Wouter-[pa3weg]> now @ 241 degrees
[15:11] <Wouter-[pa3weg]> was 255 before
[15:11] <Wouter-[pa3weg]> so whatever it is, it is moving
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[15:14] <Elmar_PD3EM> you're still getting only 1 carrier?
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[15:18] <Wouter-[pa3weg]> now moving around
[15:18] <Wouter-[pa3weg]> but yes
[15:19] <Wouter-[pa3weg]> but occasionally, it is unstable
[15:19] <Wouter-[pa3weg]> or it looks like it tries to FSK
[15:19] <Wouter-[pa3weg]> and its is not a ¨clean¨ carrier
[15:20] <Elmar_PD3EM> gonna try another antenna....
[15:26] <griffonbot> Received email: MikeB "[UKHAS] Re: OZZIE3 heading towards the Netherlands (Sunday 15th)"
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[15:30] <nosebleedkt> hi
[15:31] <nosebleedkt> is it better to have the payload antenna looking straight down or have it pointing with an angle ?
[15:31] <Elmar_PD3EM> not getting better with another antenna...
[15:32] <Elmar_PD3EM> hi nosebleedkt straight down sounds better as the payload will be spinning around and listeners can be anywhhere
[15:32] <nosebleedkt> http://imagebin.org/220862
[15:33] <Randomskk> nosebleedkt: what do you think?
[15:33] <Randomskk> consider both options
[15:33] <Elmar_PD3EM> at what heading you're RXing now Wouter-[pa3weg] ?
[15:34] <nosebleedkt> Randomskk, I like the 1st option
[15:34] <nosebleedkt> :)
[15:34] <Randomskk> because?
[15:34] <nosebleedkt> I like it, lol
[15:35] <Randomskk> is there any kind of science behind that?
[15:35] <Randomskk> this being generally an engineering undertaking you probably want a justification
[15:35] <Randomskk> that said, by all means you may do what you like when it comes to antenna orientation
[15:35] <Randomskk> so feel free to go with what you prefer
[15:35] <nosebleedkt> I am not sure how the HM wave emits
[15:35] <Randomskk> but it's generally not hard to apply a small amount of physics and determine which way is best
[15:35] <nosebleedkt> on those antennas
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[15:37] <nosebleedkt> Randomskk, what do u think is better for performance?
[15:37] <Randomskk> it's not really about what I think is better (though if you are interested you only need to see the photos of any of my launches)
[15:38] <Randomskk> but more about reasoning why one of those setups might work better
[15:38] <Randomskk> finding the beam pattern of that style of antenna isn't too hard
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[15:43] <Wouter-[pa3weg]> just back from the roof
[15:43] <Wouter-[pa3weg]> RXing carrier still, coming from seaward direction at the horizon
[15:43] <Wouter-[pa3weg]> or close to the horizon
[15:44] <Elmar_PD3EM> still no luck here either...
[15:44] <Randomskk> curious
[15:44] <Randomskk> still one second of modulation and then static carrier?
[15:44] <Randomskk> payloads with radio problems are the most annoying
[15:45] <Wouter-[pa3weg]> well, the one second burst of modulation is gone as well
[15:45] <Wouter-[pa3weg]> it was very intermittent anyway
[15:45] <Wouter-[pa3weg]> mut the carrier is still there
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[15:48] <Wouter-[pa3weg]> I don´t know how many thought and design are normally put into these payloads
[15:48] <Wouter-[pa3weg]> but in the satellite business we use 1200bd BPSK
[15:48] <Wouter-[pa3weg]> for cubesats
[15:49] <Randomskk> the issue is we are limited to 10mW transmit power
[15:49] <Randomskk> and also that most people use very simple radios only capable of FSK
[15:49] <Wouter-[pa3weg]> Delfi-C3 morse code beacon is 10mW from space
[15:49] <Randomskk> yes, and is morse code, not 1200 baud bpsk
[15:49] <Wouter-[pa3weg]> but then again, you need a small yagi
[15:49] <Randomskk> 10mW is fine, we've got 700km+ range out of it so long as you still have line of sight
[15:49] <Wouter-[pa3weg]> not hard to make one
[15:49] <Randomskk> you just lose these things once they go over the horizon
[15:50] <Randomskk> yea, plenty of us do -- sometimes on autorotators, or stacks of 2 or 4 22el yagis and things
[15:50] <Randomskk> there are some crazy rigs
[15:50] <Wouter-[pa3weg]> indeed, it is not the TX power IMO, but failing tx-es
[15:50] <Randomskk> well
[15:50] <Randomskk> the TX power is what stops us doing 1200 baud
[15:50] <Randomskk> and the simple radios are what stops bpsk
[15:50] <Randomskk> (well - that, and historical precedent, since most of the tracking network is set up for fsk)
[15:51] <Wouter-[pa3weg]> OK, that might be true on the TX end, but a FUNcube dongle isn´t that expensive
[15:51] <Randomskk> the TX power is sufficient for 50 baud at line of sight
[15:51] <Randomskk> the funcube dongle's not so great for 434MHz operation without an external filter
[15:51] <Randomskk> frontend gets overloaded really easily
[15:51] <Wouter-[pa3weg]> true
[15:51] <Randomskk> but regardless, agreed
[15:51] <Randomskk> to be honest fsk works well enough for this anyway
[15:52] <Wouter-[pa3weg]> I heard the UK is much worse than PA land in this case
[15:52] <Wouter-[pa3weg]> FSK works fine indeed
[15:52] <Wouter-[pa3weg]> but apparently the TX fails
[15:52] <Randomskk> just yea, it'd be nice to have a higher baud rate and a bit more power
[15:52] <Randomskk> but indeed
[15:52] <Randomskk> failing TXs is the biggest issue :P
[15:52] <Wouter-[pa3weg]> Elmar, did you hear that?
[15:53] <Wouter-[pa3weg]> huge wobble in the TX frequency
[15:53] <Elmar_PD3EM> what? just a carrier still
[15:53] <Wouter-[pa3weg]> yep, but something that sounded ly a crystal oscillator ulocking for a second
[15:54] <Elmar_PD3EM> Its still too weak here'and I've a pulsing noise QRM on 70cm
[15:54] <Wouter-[pa3weg]> again
[15:54] <Wouter-[pa3weg]> mhhhh
[15:58] <Elmar_PD3EM> I see a very faint sub 200 Hz down the carrier
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[16:01] <Lunar_Lander> hello
[16:02] Dan-K2VOL (~Dan-K2VOL@h-64-105-121-50.nycmny83.static.covad.net) joined #highaltitude.
[16:03] <Elmar_PD3EM> time to make some dinner..... will keep an eye on the waterfall ;-)
[16:03] <Dan-K2VOL> afternoon all
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[16:05] <Lunar_Lander> hello Elmar_PD3EM Dan-K2VOL nosebleedkt
[16:07] <Wouter-[pa3weg]> I will have to shoot off pretty soon as well
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[16:10] <Lunar_Lander> who's balloon is it :)?
[16:10] <Lunar_Lander> wait, ozzie belongs to someone
[16:10] <Lunar_Lander> wait, I try to remember
[16:11] <Lunar_Lander> ah hi navrac
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[16:14] <costyn> so what's the status on Ozzie? I'll be ready to set up my yagi in abot 45 mins
[16:15] <Lunar_Lander> hi costyn
[16:16] <costyn> Wouter-[pa3weg]: we're almost neighbors... I live in Rijswijk, I see you live in Delft
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[16:23] <Upu> costyn not sure and navrac isn't about atm
[16:24] <costyn> Upu: ok
[16:24] <Lunar_Lander> hi jcoxon Upu
[16:24] <Upu> afternoon Lunar
[16:24] <Upu> right afk for a bit then
[16:25] <nick_> Washing up/tidying done, time to play :)
[16:25] <jcoxon> hey all
[16:25] <number10> hi jcoxon
[16:26] <jcoxon> so whats been happening?
[16:26] <jcoxon> i've been away
[16:26] <number10> Upu: and daveake sent up two yesterday (one SSDV) navrac sent a pico today but poor tx
[16:27] <jcoxon> all recovered?
[16:27] <number10> yes
[16:27] <number10> ssdv worked well http://sanslogic.co.uk/ssdv/live
[16:28] <Wouter-[pa3weg]> costyn, I live in voorburg
[16:28] <costyn> Wouter-[pa3weg]: ah even closer
[16:28] <Wouter-[pa3weg]> but Delft is my work and antenna location
[16:29] <costyn> Wouter-[pa3weg]: I'm on tracker map now :)
[16:29] <costyn> Wouter-[pa3weg]: did you get any modulating signal or only carrier?
[16:29] <jcoxon> great!
[16:29] <Wouter-[pa3weg]> only carrier unfortunately
[16:29] <jcoxon> so now we are hunting ozzie3
[16:29] <number10> some of the guys in holland are llistening
[16:30] <number10> I'm tuned into a global tuner but nothing
[16:31] <Lunar_Lander> hi number10
[16:31] <number10> helo Lunar_Lander
[16:31] <jcoxon> sounds like the curse of the rfm22b on a pico and dodgey transmitter
[16:31] <number10> +l
[16:31] <griffonbot> Received email: Anthony Stirk "[UKHAS] Launches this Sat 14/07/2012"
[16:31] <number10> navrac said he should have changed it as he though was a bad batch
[16:31] <jcoxon> yeah we've suspected that for a while
[16:31] <Lunar_Lander> I got a short question concerning the board I made for my sensors, when we plugged in the NTX2, we received it with 450 Hz shift instead of 425, is that a big problem?
[16:32] <number10> no just adjust fldigi Lunar_Lander
[16:32] <costyn> number10: there are bad rfm22b's?
[16:32] <Lunar_Lander> yeah I did that
[16:32] <Lunar_Lander> but if other people would like to receive the balloon?
[16:32] <Lunar_Lander> they can adjust theirs too, right?
[16:32] <costyn> Lunar_Lander: yes
[16:32] <number10> costyn: - I have no direct experience - just relaying what navrac said earlier
[16:32] <Lunar_Lander> good
[16:32] <costyn> Lunar_Lander: I didn't get my shift exactly right either. mine is475
[16:33] <Lunar_Lander> ah
[16:33] <costyn> Lunar_Lander: but dlfldigi you can custom shift it
[16:33] <Lunar_Lander> at least the soldered circuit should be more stable than on the breadboard
[16:33] <Lunar_Lander> yeah that I did :)
[16:33] <costyn> Lunar_Lander: when you upload your payload document then people will be able to autoconfigure your payload from the list
[16:33] <Lunar_Lander> ah OK
[16:34] <Lunar_Lander> yeah somone needs to explain the document thing to me sometime
[16:34] <Lunar_Lander> I know there is a page to automatically generate one
[16:34] <jcoxon> costyn, yeah we had a patch of bad transmitters
[16:34] <Wouter-[pa3weg]> right, I have to head back for dinner and FUNcube satellite meeting tonight
[16:34] <Wouter-[pa3weg]> see you all later
[16:34] <costyn> Wouter-[pa3weg]: bye
[16:34] <Lunar_Lander> cu later Wouter-[pa3weg]
[16:34] <jcoxon> recently they've been better
[16:34] <costyn> jcoxon: ok how would one know if you have a bad one?
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[16:35] <jcoxon> costyn, its just that we had a 3 boards which had poor power output
[16:36] <jcoxon> but recently purchased ones have been good
[16:36] <jcoxon> you can't really tell till in the air
[16:37] <costyn> jcoxon: well that sucks :)
[16:37] <costyn> jcoxon: purchased mine from a dutch webshop about 4 or 5 months ago
[16:38] <Lunar_Lander> and someone here said I should connect a second antenna wire to ground and place it perpendicular to the antenna
[16:38] <Lunar_Lander> do I have to connect it to ground or to the ground pins next to the RF pin?
[16:39] <costyn> Lunar_Lander: the ones next to the RF pin
[16:39] <Lunar_Lander> OK
[16:39] <Lunar_Lander> both of them?
[16:39] <Lunar_Lander> and do they also need to be connected to the normal ground?
[16:39] <costyn> Lunar_Lander: http://ava.upuaut.net/?p=101 only one of them
[16:39] <Lunar_Lander> thx
[16:39] <costyn> Lunar_Lander: nope
[16:39] <costyn> Lunar_Lander: http://ava.upuaut.net/wp-content/uploads/2011/05/ntx2_diagram.jpg
[16:40] <Lunar_Lander> can see it
[16:40] <Lunar_Lander> thanks
[16:40] <jcoxon> costyn, high chance they are just fine
[16:40] <jcoxon> could range test them
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[16:40] <jcoxon> that would help distinguish
[16:41] <Lunar_Lander> WOW daveake I can see your new computer place on Upu's site, it's awesome!
[16:41] <costyn> jcoxon: ok thx
[16:45] <costyn> yea daveake's new command center looks awesome
[16:47] <daveake> You can't see all the monitors in that picture :)
[16:48] <griffonbot> Received email: Mike Willis "RE: [UKHAS] Launches this Sat 14/07/2012"
[16:49] <Lunar_Lander> daveake, xD I can see four, how many do you have?
[16:49] <daveake> 6
[16:50] <daveake> But only use the central 4 really. The others are connected to the laptops
[16:51] <number10> are the other two for guests daveake ?
[16:51] <daveake> No !!
[16:52] <daveake> Only 1 keyboard 1 mouse for the lot
[16:52] <daveake> Software KVM. Well KV really
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[16:58] <Lunar_Lander> daveake, cool!
[16:58] <Lunar_Lander> daveake, I am out of temperature sensors
[16:59] <Lunar_Lander> that isn't that good as I planned an experiment with the humidity sensor
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[16:59] <daveake> There are places where you can buy more
[16:59] <Lunar_Lander> yeah but they won't be here instantaneously :)
[16:59] <daveake> Ask for delivery at 88mph then
[16:59] <Lunar_Lander> XD!
[17:00] <Lunar_Lander> fortunately I still got the BMP085 here
[17:00] <Dan-K2VOL> that thing is terrible to solder
[17:01] <Lunar_Lander> yea, I got it as breakout
[17:01] <Lunar_Lander> you worked with the sensor as such?
[17:02] <jcoxon> i've used one
[17:03] <jcoxon> lots of good code and libraries about for it
[17:03] <Lunar_Lander> that is true
[17:03] <daveake> Yeah, it's straightforward using one of those.
[17:03] <Dan-K2VOL> yes Lunar_Lander, we flew a few, but soldering them is for the birds, even being good a hot-air surface mount soldering we damaged a lot of them
[17:04] <Lunar_Lander> oh
[17:04] <Lunar_Lander> was that before SNOX and WhiteStar?
[17:04] <Lunar_Lander> I mean on your "old" balloon flights
[17:06] <Dan-K2VOL> white star
[17:07] <Dan-K2VOL> we flew some MPXV5050DP sensors back before SNOX to good result, and also the MPX5004DP recently on the White Star ZP burst test flight
[17:07] <Dan-K2VOL> those are analog output though, ~1-4v
[17:08] <Lunar_Lander> ah
[17:08] <Lunar_Lander> yea
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[17:23] <jdtanner1> Ozzie? Unlike but you never know& http://imgbin.org/index.php?page=image&id=8772
[17:24] <jdtanner1> 434.205
[17:24] <navrac> Somebody called?
[17:24] <jdtanner1> Drifing all over the place
[17:25] <navrac> right frequency but the shift would be 312hz ish
[17:25] <jdtanner1> It is now
[17:25] <jdtanner1> Getting two tones&one of which is marching all ovet the place
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[17:26] <navrac> ozzie transmits 4 seconds carrier - rtty for about 30 seconds then 20 seconds off air
[17:27] <navrac> I could decode for about 80Km and hear it for about 120Km
[17:27] <jdtanner1> See http://i48.tinypic.com/egy43l.jpg
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[17:27] <jdtanner1> this is continuous
[17:28] <navrac> looks like the shift is too small to me
[17:28] <jdtanner1> It is bang on now
[17:29] <navrac> e tell tale is whether it appears and dissapears every 30secs
[17:29] <jdtanner1> I'll keep an eye on it
[17:29] <navrac> wherabouts are you?
[17:30] <jdtanner1> Middle of the Peak District (near Sheffield) at 340m
[17:32] Nick change: |ezra|_ -> |ezra|
[17:34] <navrac> I dont think it will make it that far - even with that height, by my reckoning it should be about 100km west of amsterdam
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[17:36] <griffonbot> Received email: Cresswell family "Re: [UKHAS] Re: OZZIE3 heading towards the Netherlands (Sunday 15th)"
[17:38] <Elmar_PD3EM> GE! back from dinner... still nothing from Ozzie on my waterfall
[17:39] <navrac> :-(
[17:40] <navrac> thanks for listening - it is very weak. Unless it passes within 100km you might not hear it
[17:41] <Elmar_PD3EM> I'll keep everything running here navrac
[17:41] <navrac> thanks - the distinctive pattern is that it transmits rtty for 30 secs, goes off line for 20secs then plain carrier for 4 seconds.
[17:41] <jcoxon> navrac, dodgey rfm22?
[17:42] <navrac> yes - sadly I replaced the rfm with a new one - but from the same batch
[17:43] <navrac> although there isnt mutch on spacenear I have local logs for about another hour which didnt upload due to local qrm - but enough to see it went to 7200m and then floated for 10mins till it got too weak to decode
[17:44] <navrac> which is great as it matched the calculations perfectly.
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[17:45] <navrac> so if it gets lost i'm not too concerned - the big thing was proving the calcs and getting it to float with a home made balloon
[17:45] <Elmar_PD3EM> with the predicted wind it should float towards me ;-)
[17:46] <navrac> from earlier predictions it should come pretty close
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[18:03] <Lunar_Lander> hi Elmar_PD3EM
[18:03] <Elmar_PD3EM> hi LL
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[18:06] <Lunar_Lander> how's your project progressing?
[18:06] <costyn> Elmar_PD3EM: hiya
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[18:07] <costyn> Elmar_PD3EM: are you getting anything at all? I have a yagi which I can try but if you guys aren't getting anything I'm not going to set everything up
[18:07] <Elmar_PD3EM> is has been "on hold" for some time but I just got back from holiday so things will start up again soon
[18:07] <Elmar_PD3EM> niets hier costyn
[18:08] <Lunar_Lander> yea
[18:08] <Elmar_PD3EM> I'm listening on the X-50 but also tried the beam (which I bought from Tim)
[18:08] <Lunar_Lander> where've you been?
[18:09] <Elmar_PD3EM> Lunar_Lander: I've been to Austria
[18:09] <Lunar_Lander> cool, how was it?
[18:09] <costyn> Elmar_PD3EM: ok cool
[18:10] <Elmar_PD3EM> I've been hiking the Alps ;-)
[18:10] <Lunar_Lander> cool
[18:10] <costyn> Elmar_PD3EM: awesome... there are worse places to be :)
[18:11] <Elmar_PD3EM> haha indeed! Was great to be there again
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[18:14] <Elmar_PD3EM> Had the TH-D72 with me so I was trackable (via APRS) while hiking
[18:15] <navrac> If ozzie looses gps it will send a 200msec carrier every second or so - It will do that after about 10pm anyway
[18:15] <Elmar_PD3EM> navrac: 10pm UTC?
[18:16] <navrac> I think so - need to check the code
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[18:18] <Elmar_PD3EM> costyn: I also got a 1000 gr balloon from Tim, so ready to launch when the tracker is soldered and further tested :-)
[18:18] <navrac> 21:00 UTC so 10pm BST, 11pm CET
[18:18] <Elmar_PD3EM> thanks navrac
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[18:21] <Elmar_PD3EM> how steady is the frequency navrac?
[18:22] <navrac> its an rfm22 so not very
[18:22] <navrac> it will tend to drift during the tx period
[18:22] <Elmar_PD3EM> ok, I'm going to watch a whidther scope every now and then
[18:22] <costyn> Elmar_PD3EM: cool, cool... my payload is done, ordering helium and going to launch on 28th july (if i can get helium that quick) or the 18th of august
[18:22] <navrac> thanks
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[18:23] <Elmar_PD3EM> costyn: Helium should be easy to get or not? There seems to be s company close to where I live
[18:23] <Lunar_Lander> another question for you all
[18:23] <Lunar_Lander> one moment
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[18:25] <Lunar_Lander> http://s.gullipics.com/image/n/l/6/5zto6f-jao7aq-05ux/PlatinenplanMultimeter.jpeg
[18:25] <Lunar_Lander> explaination:
[18:26] <Lunar_Lander> I measured the disrupted tracks with the DMM in diode mode but got a signal on the two strips marked with the red and black Xs
[18:26] <Lunar_Lander> can it be that the current took the path marked in blue?
[18:26] <costyn> Elmar_PD3EM: well lots of companies providing it, but finding a nice price is the hard bit
[18:27] <costyn> Elmar_PD3EM: I'm going to buy from this guy: http://www.incredibleballoons.com/ he's a local and its where Tim got his. You can rent a regulator with a bit of hose from him too.
[18:27] <Elmar_PD3EM> costyn: that's indeed the problem. Prices so far? Close to where I live: http://www.ballonnen-helium.nl/tarieven.php#afleverwijze=per_cilinder
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[18:35] <navrac> lunar_lander - you will probably find that eirther the 'cut tracks' arent quite cut properly or a small piece of the copper is shorting to an adjacent track. You need to look closely at each cut point witha magnifying glass
[18:35] <Lunar_Lander> OK
[18:35] <costyn> Elmar_PD3EM: how many cubic meters of He do those bottles contain?
[18:36] <Lunar_Lander> we were using a carpet knife for that, others recommended using a Dremel/Proxxon machine
[18:36] <Lunar_Lander> and here I was once recommended a drill
[18:36] <navrac> drill bit
[18:36] <Lunar_Lander> yes
[18:36] <costyn> Elmar_PD3EM: my guy has quoted me 95 euro voor 3 m^3
[18:36] <navrac> about 5mm will work best
[18:36] <Lunar_Lander> ok
[18:37] <navrac> carpet knives are terrible - they will leave short circuits
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[18:38] <Lunar_Lander> ah
[18:38] <Elmar_PD3EM> costyn: I've no idea how much is in it
[18:38] <Lunar_Lander> OHHH I just saw it on youtube, you don't scratch with the drill but rather
[18:38] <Lunar_Lander> well
[18:38] <Lunar_Lander> drill?
[18:38] <navrac> yep
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[18:39] <Lunar_Lander> ohhh
[18:39] <Lunar_Lander> finally got it
[18:39] <costyn> Elmar_PD3EM: once you know the final weight of your payload you can use the burst calculator to see how much He you need
[18:39] <Lunar_Lander> what does he do in the beginning? https://www.youtube.com/watch?v=x4p5wD2wMjo
[18:39] <Lunar_Lander> why does he thread wire through the holes
[18:39] <Lunar_Lander> nevermind
[18:40] <Lunar_Lander> he painted the line with a pen
[18:40] <Lunar_Lander> just missed that
[18:40] <Lunar_Lander> xD
[18:41] <Elmar_PD3EM> costyn: I found thuis on another website: N10 Specifications: 2.61 cubic metres (92 cubic feet) of helium gas
[18:41] <costyn> which is the best vero board to use? I have ones with individual islands and one with 3 islands connected, and these ones have tracks (which I don't have)
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[18:42] <costyn> Elmar_PD3EM: ok not bad then
[18:42] <Elmar_PD3EM> No, so abt 95 euro for a launch on He
[18:42] <Lunar_Lander> the individual one is called Perfboard as far as I know
[18:42] <costyn> Elmar_PD3EM: do you have a weight estimate for your payload yet?
[18:43] <costyn> Lunar_Lander: ah ok
[18:43] <costyn> Lunar_Lander: and the tracks are called vero then?
[18:43] <Lunar_Lander> yeah that's a brand name afaik
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[18:43] Action: costyn is just reading wikipedia :)
[18:43] <Elmar_PD3EM> costyn: no, not yet. Depending whether I put just the tracker in or also a camera
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[18:44] <Lunar_Lander> costyn, http://www.verotl.com/veroboard
[18:45] <costyn> Lunar_Lander: tri-pad: http://en.wikipedia.org/wiki/File:UniversalPCB.jpg
[18:45] <kokey> is it me or does the arduino ide suck?
[18:45] <costyn> Lunar_Lander: I've used tripad for my powersupply
[18:46] <fsphil> not just you kokey
[18:46] <costyn> can't really call it an ide. hehe. too basic for that
[18:47] <Lunar_Lander> costyn, ah ok
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[18:47] <costyn> built my own regulator circuit since the onboard one is sucky
[18:47] <costyn> with advice from daveake
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[18:50] <costyn> kind of off-topic, but: do you guys know if the adjustment knob on a fridge in the 4 degree compartment will also adjust the temp of the freezer compartment in a combined cooler/freezer ?
[18:51] <Elmar_PD3EM> haha..... put a second temp sensor on the tracker and you'll find out ;-)
[18:52] <navrac> It normally does
[18:52] <costyn> Elmar_PD3EM: well, i've got both my temp sensors in my fridge, one in the cooler, one in the freezer but my freezer is only reporting -10, which isn't anywhere near the -18 it should be
[18:53] <costyn> we've adjusted the knob, but that was 30 minutes ago, so now we wait... :)
[18:53] <Elmar_PD3EM> costyn: that's not good.... Hope it's the sensor that's giving a false value
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[18:54] <Elmar_PD3EM> costyn: I put July, 28 in my agenda
[18:54] <costyn> Elmar_PD3EM: okay cool... I'll let you know if we're going to launch
[18:54] <Elmar_PD3EM> costyn: You've got a launch site?
[18:54] <costyn> Elmar_PD3EM: we have no idea where yet.. looking for a nice field; but most of them belong to farmers and such
[18:55] <Elmar_PD3EM> costyn: that shouldn't be a problem around here. Check the webcams on my weather website: http://www.geenweer.nl/
[18:57] <costyn> Elmar_PD3EM: looks nice... can we use your field? :)
[18:57] <Elmar_PD3EM> costyn: These fields are not mine but I can arrange something
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[18:58] <costyn> Elmar_PD3EM: ok, so we would have to ask for permission before
[18:59] <costyn> hey... both compartments just went a degree lower ; i think it's working :)
[18:59] <Elmar_PD3EM> costyn: yes, otherwise cows are running around in the same field ;-)
[19:00] <costyn> ok :)
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[19:06] <mclane> Hi, nice flights yesteday!
[19:06] <mclane> does anybody have some instructiobs how to seal the neck of a balloon and connect to the payload?
[19:07] <mclane> any recommendations wrt train length, distance between balloon and parachute?
[19:07] <jcoxon> http://wiki.ukhas.org.uk/guides:sealing_the_balloon
[19:08] <mclane> ah great, missed that!
[19:08] <mclane> thanks for the hint!
[19:08] <costyn> Elmar_PD3EM: my god... there are just a ridiculous number of greenhouses (kassen) between the Hague and Rotterdam
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[19:15] <Elmar_PD3EM> costyn: yes... a lot around there
[19:18] <navrac> jcoxon - are you doing any suffolkish launches soon?
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[19:20] <griffonbot> Received email: MikeB "Re: [UKHAS] Re: OZZIE3 heading towards the Netherlands (Sunday 15th)"
[19:21] <jcoxon> navrac, as soon as i find time yeah
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[19:22] <navrac> if you have one with a notam give me a shout - I'm building a 15km superpressure floater next and would like to tag along to launch at the same time
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[20:00] <Dan-K2VOL> anyone around the New York City area?
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[20:10] <Elmar_PD3EM> still no signal from Ozzie navrac, so I'm afraid it's lost. Hope someone will find it on the ground
[20:11] <Dan-K2VOL> good luck
[20:11] <Laurenceb_> oof floater attempt?
[20:11] <Laurenceb_> did it go out of range?
[20:12] <Elmar_PD3EM> lost above sea due to bad tx signal
[20:13] <Elmar_PD3EM> see email from navrac with latest position/details
[20:13] <Laurenceb_> oh :(
[20:13] <Laurenceb_> pAVA was a Pi?
[20:13] <Dan-K2VOL> Sounds fatal - "lost above sea"
[20:13] <Elmar_PD3EM> payloads have been found at shore after floating the North Sea for weeks ;-)
[20:15] <Dan-K2VOL> ahh yes, I was quite sad to learn that the Spirit of Knoxville IV payload box was built with a water-soluble adhesive. I hadn't thought to tell the guy building it to use something that wouldn't fall apart in water, the cost of volunteer groups doing engineering
[20:18] <Elmar_PD3EM> a few $$ more on tape can make a difference if it lands at sea
[20:20] <Dan-K2VOL> nice pics from PIE1
[20:20] <Elmar_PD3EM> but after that it still need to land where people will go and recover it. A good water resistant note on it with contact info on it will also help
[20:20] <Dan-K2VOL> that SSDV technique is great
[20:20] <Dan-K2VOL> http://sanslogic.co.uk/ssdv/live
[20:20] <number10> Laurenceb_: pAVA was lightweight payload on 1600g - see Upus page http://ava.upuaut.net/?p=315
[20:21] <Dan-K2VOL> hey number10, how have you been
[20:21] <number10> fine Dan-K2VOL
[20:22] <Elmar_PD3EM> indeed great technique / quality with SSDV images
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[20:23] <Dan-K2VOL> upu very nice write up
[20:24] <Laurenceb_> why does it say pi in the sky?
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[20:25] <daveake> Because we had a Pi
[20:25] <daveake> in the sky
[20:25] <number10> daveake launched the pi Laurenceb_
[20:25] <Elmar_PD3EM> They've put a Raspberry Pi up
[20:27] <Laurenceb_> cool
[20:27] <Laurenceb_> was the pi transmitting the slow scan tv?
[20:28] <daveake> yep
[20:28] <daveake> and telemetry though the GPS got stuck (was too close to the Pi probably)
[20:29] <Laurenceb_> how was it getting the photos?
[20:29] <daveake> For the images, I had a simple shell script taking a photo every 30 secs. Then when the tracker program needed an image to send, it chose the best* stored image to send.
[20:29] <daveake> *Best = largest jped file
[20:29] <daveake> jpeg
[20:29] <daveake> webcam
[20:29] <Laurenceb_> ah
[20:30] <daveake> That's the advantage of the Pi - easy to get images into it
[20:30] <daveake> It has disadvantages too of course!
[20:30] <daveake> Power being #1. Got rather hot.
[20:33] <WillDuckworth> was a good hab day :)
[20:33] <daveake> It was fun :)
[20:33] <daveake> You ran out of battery chasing pAVA?
[20:35] <WillDuckworth> yeah - was a shame
[20:35] <WillDuckworth> plus the other half was getting distracted and lost interest!
[20:35] <WillDuckworth> enjoyed getting the pics and tracking
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[20:41] <daveake> Julie even put up with us sitting in that layby on the A34 for however long it was!
[20:43] <WillDuckworth> yeah - you guys did well there
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[20:43] <Elmar_PD3EM> gotta go... CUL
[20:43] <Lunar_Lander> cu Elmar_PD3EM
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[20:59] <WillDuckworth> hey daveake - did you doctor fsphil's code much?
[20:59] <daveake> Not at all
[20:59] <daveake> Just compiled it
[21:00] <daveake> My tracker code just runs phil's program to convert jpeg to telemetry format
[21:00] <daveake> Then it reads the resulting file one packet at a time
[21:00] <daveake> easy peasy
[21:00] <WillDuckworth> cool - same here - still plodding along here :)
[21:00] <daveake> :)
[21:01] <fsphil> simples, just don't melt my website :)
[21:01] <WillDuckworth> do you reckon the pi interfered with the gps? (of course fsphil ;)
[21:01] <daveake> I nearly melted my pi :)
[21:02] <daveake> yes it did
[21:02] <daveake> I put them too close to each other
[21:02] <daveake> The pi is a bit noisy
[21:02] <WillDuckworth> good to know for next time :)
[21:02] <daveake> Yeah :)
[21:03] <fsphil> when I launch this one, I might keep it in a separate box
[21:03] <daveake> We had other payloads sending telemetry so I wasn't worried
[21:03] <daveake> Heat, power and noise. Sort those and you're good.
[21:04] <fsphil> rule 1, don't bake your pi
[21:05] <daveake> lol
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[21:23] <G0DJA> daveake "Heat, power and noise" sounds like most problems I have to address at work as well...
[21:24] <daveake> :)
[21:24] <G0DJA> That's engineering, political and personal as well ;)
[21:24] <daveake> :)
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[21:28] <G0DJA> So, how is the Raspberry Pi coming on for HAB then?
[21:29] <daveake> Needs moar cooling
[21:29] <daveake> Or less power
[21:29] <daveake> It's hardly ideal, but if you want to do SSDV it's not a bad option
[21:29] <daveake> I did it because I had one
[21:30] <Laurenceb_> probably the low pressure that caused the issue
[21:30] <G0DJA> I did look at getting one, but I've not yet completed the Arduino/RTTy project as yet
[21:30] <Laurenceb_> reduced convectivre cooling
[21:32] <G0DJA> Getting seduced by the dark-side of 10 and 24GHz again after talks at the Finningley Round Table today
[21:33] <daveake> I didn't open it will well after an hour after it landed, and that's when I noticed it was hot
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[21:33] <daveake> I didn't put any sensors in there so I don't know how hot it got up there
[21:33] <G0DJA> Seems like a need to monitor the power budget a bit more 1st?>
[21:34] <daveake> Well first is to use switching regulators. Ordered some a couple of weeks ago, and they're on a slow boat from China
[21:34] <G0DJA> Logically, small footprint and high output equals a need for power?
[21:34] <daveake> That'll save half the heat
[21:35] <G0DJA> That'll help
[21:35] <daveake> The pi plus webcam uses about 2.5W
[21:35] <G0DJA> but what will that do to the RF interference?
[21:35] <daveake> Yes
[21:35] <daveake> It'll increase it
[21:35] <G0DJA> I guessed so ;-)
[21:35] <daveake> I need to sort that anyway - shielding and/or bigger case
[21:35] <daveake> :D
[21:37] <G0DJA> There's been some good talks on reducing RFI on computer based (SDR) systems at Friedrichshafen
[21:37] <Laurenceb_> http://www.aliexpress.com/product-fm/329664833-STM32-Camera-Development-Board-2-8-TFT-LCD-Module-Source-Code-wholesalers.html
[21:37] <G0DJA> Many in German, so I struggled, but I guess the papers would be available in English
[21:39] <G0DJA> GW4DGU is also producing some good designs for low noise/jitter osc for 10GHz at 12V as well
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[21:41] <fsphil> shame we don't have a higher power ISM band in the 2ghz range
[21:41] <G0DJA> The ideas might be applicable at UHF
[21:41] <fsphil> not for the low jitter, just because there'd be less noise (away from the 434mhz stuff anyway)
[21:42] <fsphil> not counting 2.4ghz
[21:42] <fsphil> which is probably pretty horrible
[21:43] <G0DJA> He was up converting without the 'usual' xtal plus multiple conversions
[21:44] <G0DJA> using PLL (without the Harker doom-and-gloom)
[21:45] <fsphil> isn't the problem the xtal itself?
[21:45] <fsphil> changing frequency with temperature
[21:45] <G0DJA> Yes, that's what Chis was saying...
[21:46] <Upu> evening, thanks Dan-K2VOL
[21:47] <Dan-K2VOL> :-)
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[21:47] <Upu> almost considered sending that pava your way
[21:47] <G0DJA> So, a properly designed and controlled PLL would be OK, as long as you recognised the need for spectural purity but he was doing it on a very available duroid board
[21:47] <Upu> reckon it could do it with 4 AA's
[21:47] <fsphil> a bit less H2 and it might have :)
[21:48] <Upu> and some super power saving code
[21:48] <Upu> indeed
[21:48] <fsphil> Upu, fancy launching one from here?
[21:48] <Upu> sure
[21:48] <fsphil> I've got an old 1600g
[21:48] <Upu> why not :)
[21:48] <fsphil> although no H2
[21:48] <Upu> I have some code in the wings for it
[21:48] <Upu> but its far from ready
[21:49] <Upu> but in theory its doable
[21:49] <Upu> it would end up in Canada if it got anywhere
[21:49] <fsphil> yea, I'm a bit further north than st.johns in newfoundland
[21:49] <fsphil> that's the closest point iirc
[21:50] <fsphil> ideally it would need to move south a bit
[21:51] <jcoxon> what you guys scheming?
[21:51] <Upu> well nothing really basically Eurus
[21:51] <fsphil> eurus-lite
[21:52] <Upu> Eurus is lite
[21:52] <Upu> :)
[21:52] <jcoxon> hehe
[21:52] <Upu> I had some ideas for extending the code on pava
[21:52] <jcoxon> oooo
[21:52] <fsphil> I'd still like to send swift over, but don't think I'd be able to keep the power down
[21:52] <Upu> so once the primary "mission" was over and if it was still going
[21:52] <Upu> to switch into power saving mode
[21:53] <Upu> idea was if it was still airborne at say 16:00 it would be safe to assume float (in retrospec haha)
[21:53] <Upu> so switch on the ublox power saving, increase gap between transmissions
[21:53] <jcoxon> yeah
[21:53] <jcoxon> i think thats useful
[21:53] <Upu> then after 23:00 sleep for an hour at a time wake up transmit 10 strings go sleep again
[21:54] <Upu> then finally if the long was between -15 and -55 just shut down XX hours
[21:54] <Upu> I was going to try be clever and work out the speed
[21:54] <Upu> and work out how long to shut down for
[21:54] <fsphil> could put a regulator on there with an on/off pin for the gps module
[21:54] <fsphil> switch it off completely when not needed
[21:54] <Upu> restart normal operation when ~350 miles from the coast of Canada
[21:55] <Upu> well was thinking what I could do in software
[21:55] <Upu> I think it would do 4 days on 4 x AA
[21:55] <jcoxon> its a good idea
[21:55] <Upu> possibly more all hyperthetical
[21:55] <Upu> code took into account time zone changes too
[21:56] <Upu> removing an hour for every 15' west
[21:57] <Upu> anyway thats my theory don't know what you had in mind for Eurus
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[21:59] <Upu> btw both those launches on Sat were done with wet balloons
[21:59] <Upu> the cord on the second one was literally dripping wet when it stretched
[22:00] <daveake> So much so I thought it was raining!
[22:00] <Upu> My ground sheet is hung up in the garage drying
[22:00] <daveake> :)
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[22:03] <fsphil> good sized sheet that
[22:04] <Upu> yeah I got the wrong one actually
[22:04] <Upu> but it works
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[22:10] Action: jcoxon is designing a pcb
[22:11] <Dan-K2VOL> what's the pcb jcoxon
[22:12] <jcoxon> on eagle whats the best way to label the pins on a connector?
[22:12] <jcoxon> lipo charger
[22:12] <Dan-K2VOL> I usually just put separate text on the board after everything is laid out
[22:16] <jcoxon> what layer is it again?
[22:16] <Dan-K2VOL> depends on how you have the CAM set to send to your board fab place
[22:17] <Upu> layer 21 for top
[22:17] <Dan-K2VOL> several layers are probably set to be made into the silkscreen
[22:17] <Upu> keep the size > 0.8mm if you want to read it
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[23:03] <griffonbot> Received email: James Coxon "[UKHAS] UKHAS Conference 2012"
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[00:00] --- Mon Jul 16 2012