highaltitude.log.20110917

[00:00] <Randomskk> wait, I say that, there are more restrictions later
[00:00] <Matt_soton> i think thats standard for vendors that provide libraries for their parts
[00:00] <Randomskk> https://randomskk.net/u/SLA.pdf
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[00:02] <Matt_soton> this is why companies have legal departments
[00:02] <Randomskk> seriously, ugh
[00:02] <Matt_soton> is it NDA or something \
[00:02] <Matt_soton> :\
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[00:03] <Randomskk> You will lock the source code of the
[00:03] <Randomskk> Licensed Software and all copies thereof in a secured storage inside your official premises at all times when the
[00:03] <Randomskk> source code of the Licensed Software is not being used as permitted under this Agreement.
[00:03] <Randomskk> what
[00:03] <Randomskk> that doesn't even make sense
[00:04] <Matt_soton> also u may only make one backup :/
[00:04] <Randomskk> so they're saying they can distribute the source all they want on their website, but you can't redistribute it, perhaps
[00:05] <fergusnoble> piotr says the library is just an object file which wont link with gcc?!
[00:05] <Randomskk> eww
[00:05] <fergusnoble> he said he took 5 motnths to get the source but its under NDA
[00:06] <fergusnoble> he also says the implementation is bad :)
[00:06] <Randomskk> I see
[00:06] <Randomskk> haha right
[00:06] <Randomskk> I think perhaps then either open-bldc or writing my own to take advantage of the stm32f100's sexy timers is the way forward
[00:06] <Randomskk> looked too good to be true :P
[00:07] <Matt_soton> checked tpb for it? :p
[00:07] <Randomskk> having it's not much use if I can't distribute it really
[00:08] <Matt_soton> yea suppose
[00:09] <Randomskk> oh well, in theory the timers and such make it not too bad
[00:09] <Randomskk> though I think I'll be doing six stage control rather than the sexy FOC or vector stuff
[00:09] <Matt_soton> the theory is open so u could implement it
[00:10] <Randomskk> indeed
[00:10] <Randomskk> baby steps though I guess
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[00:13] <Randomskk> to be honest that's a third potential 4th year project
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[00:14] <Randomskk> not anything like as cool
[00:14] <Randomskk> another option would be working on the single quadcopter flight stability
[00:14] <Matt_soton> yea thers lots of work that can be done, that u may otherwise bypass by using open pilot or whatever
[00:15] <Randomskk> indeed
[00:16] <Matt_soton> isnt there a direct link to the motor control library on the bottom of those slides :\
[00:17] <Matt_soton> its a exe which im not running mind you
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[00:17] <Randomskk> yea
[00:17] <Randomskk> and the exe just extracts the files baiscally
[00:17] <Randomskk> it's annoying
[00:17] <Randomskk> the files do appear to be a ton of headers and a binary object file though
[00:17] <Randomskk> so, not much cop really
[00:17] <Randomskk> and see ^ about how it's not great anyway, plus that annoying license.
[00:18] <Matt_soton> you could use the library, and when it comes to distrubuting the user has to download the files themself and add to the project?
[00:18] <Matt_soton> or supply the stm32 preprogrammed and read protected
[00:19] <Randomskk> apparently the binary file doesn't link with gcc either, and I'm probably not going to get into supplying stm32s, so
[00:19] <Randomskk> it seems a shame, if they released it under a happy license that'd be nice
[00:19] <SpeedEvil> It's barking mad.
[00:19] <Matt_soton> if it doesnt link how do you do 'stuff' with it :\
[00:20] <SpeedEvil> Use an approved compiler.
[00:20] <Matt_soton> oh its just gcc
[00:20] <SpeedEvil> Presumably it'll link with some specific compiler that you probably don't own
[00:21] <Matt_soton> what linker does keil tools use :\
[00:25] <Matt_soton> either way, sleepy, night
[00:26] <Randomskk> seeya
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[00:56] <Randomskk> SpeedEvil: http://uk.farnell.com/fairchild-semiconductor/fdma1028nz/mosfet-dual-n-mlp6/dp/1324789
[00:57] <Randomskk> 32p, dual MOSFET, 3.7A, 1V 68mohm
[00:57] <SpeedEvil> Oh - I forgot about those
[00:57] <SpeedEvil> I think I'd found those before - insane
[00:57] <Randomskk> and absolutely tiny
[00:57] <SpeedEvil> The spec is wrong though
[00:57] <Randomskk> huh?
[00:57] <Randomskk> also being dual I'd just need three of those chips plus some drivers for the high side and I'm laughing
[00:57] <SpeedEvil> Vgs(th)=rds(on) test voltage
[00:57] <Randomskk> oh
[00:57] <Randomskk> right
[00:57] <Randomskk> datasheet
[00:57] <Randomskk> so it's 2.5V
[00:58] <Randomskk> 86mohm
[00:58] <SpeedEvil> Not bad
[00:58] <Randomskk> 4.5V 68mohm
[00:58] <Randomskk> I can do 3v3 so probably somewhere in between that
[00:58] <Randomskk> so three of those for the FETs
[00:58] <Randomskk> hmm I think I'm going to have to buy the low power motors sooner rather than later, my current BLDCs won't do much at that low current
[01:00] <SpeedEvil> They probably will - just with no significant torque
[01:00] <Randomskk> you reckon? I don't need torque to check the driver is working
[01:01] <Randomskk> my ones are a max current of 14.5A
[01:01] <SpeedEvil> Hmm
[01:01] <Randomskk> so what, just run them without a prop?
[01:01] <SpeedEvil> I'd expect they will
[01:01] <SpeedEvil> yes
[01:02] <Randomskk> or maybe with a tiny fake prop to give a little load?
[01:02] <SpeedEvil> perhaps, yes
[01:02] <SpeedEvil> the internal 'windage' will be much higher
[01:02] <SpeedEvil> though it's possible actually on thinking about it that it won't get over the rotors preferred position
[01:03] <SpeedEvil> Once running - they will run at medium speeds with very little power
[01:03] <Randomskk> I wonder if I should design for 1S or 2S
[01:03] <Randomskk> oh, but might need more current to start?
[01:03] <Randomskk> bldc startup is a pain
[01:03] <SpeedEvil> Easy enough to test with a power supply
[01:04] <SpeedEvil> apply 1A, see if it moves all the way to the same position it moves to with 5A
[01:04] <Randomskk> there's either the 2.3g 1S motor, gives 19g of lift at 1A (27g at 2A)
[01:04] <Randomskk> or there's the 3.1g 1~2S motor, gives 61g at 1.7A 7.4V
[01:04] <SpeedEvil> The thrust is of course variable with the prop
[01:04] <Randomskk> yea, those are all with 'recommended' prop
[01:04] <SpeedEvil> It has an included prop?
[01:04] <Randomskk> no but they suggest one
[01:04] <SpeedEvil> Sometimes it can be wort looking at alternatives.
[01:05] <Randomskk> true
[01:05] <Randomskk> the comments for most of these have hobbyists testing with various props too
[01:05] <SpeedEvil> You can trade exhaust velocity for thrust
[01:05] <Randomskk> I dunno whether to go for 1S or 2S on my motor controller design though
[01:05] <Randomskk> 1S is a lot easier in many respects
[01:05] <SpeedEvil> Higher exhaust velocity means that you're less vulnerable to gusts
[01:05] <Randomskk> it also means I can readily run the electronics off the same cell
[01:05] <Randomskk> and charging is easier, and it's less weight for the capacity
[01:05] <Randomskk> but obviously lose out hard in thrust
[01:06] <SpeedEvil> What sort of cell?
[01:06] <Randomskk> lipos, 3v7 nominal, I suspect.
[01:06] <SpeedEvil> up to 8A is going to mean...
[01:06] <SpeedEvil> With a 30C cell - as low as 260mAh I guess
[01:06] <Randomskk> yea
[01:06] <SpeedEvil> You think the static is around 1A?
[01:07] <Randomskk> depends on my eventual mass
[01:07] <Randomskk> at 1A, the 1S motors give 20g
[01:07] <Randomskk> four of them means 60g total lift capacity
[01:07] <Randomskk> maybe I could hit 30g total mass
[01:07] <SpeedEvil> A 260mAh cell would give you 4 min flight
[01:07] <Randomskk> pretty shit
[01:08] <SpeedEvil> ~8 grams
[01:08] <Randomskk> I can probably afford more battery budget than that
[01:08] <Randomskk> well, maybe
[01:09] <Randomskk> the gumstix really is 5 grams
[01:09] <Randomskk> with wifi+bluetooth (but not antennas)
[01:10] <Randomskk> the 1S motors are 2.3g each
[01:10] <Randomskk> the motor controllers might be a few more grams
[01:10] <Randomskk> PCB a bit more
[01:10] <Randomskk> GPS, baro, IMU
[01:10] <SpeedEvil> Bare, or with a shell?
[01:11] <Randomskk> which? the gumstix is bare
[01:11] <SpeedEvil> The whole thing
[01:11] <Randomskk> oh
[01:11] <Randomskk> bare for now
[01:11] <Randomskk> a shall might be nice one day if I can afford the mass.
[01:11] <Randomskk> don't know about aerodynamics. will probably have to become a consideration
[01:11] <SpeedEvil> I guess something like a couple of layers of film on either side, laminated flat would be light
[01:12] <Randomskk> what for, protecting the electronics?
[01:12] <SpeedEvil> yeah
[01:12] <Randomskk> yea, I guess so
[01:12] <SpeedEvil> Or even a teeny polystyrene shell
[01:12] <Randomskk> that might work
[01:12] <Randomskk> 25g for a 1Ah 20C 1S battery
[01:13] <Randomskk> goes on down from there
[01:13] <Randomskk> 15g for 600mAh 20C
[01:13] <Randomskk> if I was talking 1A average per motor, 4A average running consumption, a 1Ah battery gets me 15min flight
[01:14] <Randomskk> which is closer to what I'd really like
[01:14] <Randomskk> but, 25g
[01:14] <Randomskk> might end up pushing my average current use up
[01:14] <Randomskk> though 1A average per motor, 4A overall is 60g lift
[01:14] <SpeedEvil> There is going to be a nice log-like curve I suspect
[01:14] <Randomskk> undoubtably
[01:14] <SpeedEvil> flat at first, getting sttep, then vertical.
[01:15] <SpeedEvil> Of flight time improvement with additional battery
[01:15] <Randomskk> indeed
[01:15] <Randomskk> well, vertical at first then flat, surely?
[01:15] <Randomskk> or at least, "diminishing returns"
[01:15] <SpeedEvil> Slope starting out ice and modest if you're already lightly loaded
[01:16] <Randomskk> still dunno about my 1S vs 2S issue then
[01:16] <SpeedEvil> I meant vertical the other way
[01:16] <Randomskk> yea
[01:16] <Randomskk> I figured
[01:16] <SpeedEvil> As in plummeting to the ground. :)
[01:16] <Randomskk> ...ahh :P
[01:16] <Randomskk> tbh I reckon the 2.3g 1S motors. make the whole thing tiny and light, that's what I'm going for anyway.
[01:17] <SpeedEvil> Seems like a good plan
[01:17] <Randomskk> they're not cheap, though - $16.90 each
[01:17] <Randomskk> still
[01:17] <Randomskk> compared to a 4 layer pcb or the gumstix, not much.
[01:17] <SpeedEvil> Indeed.
[01:17] <SpeedEvil> A clip-on wing can be fun too
[01:18] <Randomskk> what, for quadcopters? to let it fly/glide?
[01:18] <SpeedEvil> Yes.
[01:18] <Randomskk> did you see http://www.kickstarter.com/projects/jkg/quadshot-an-aerobatic-blend-of-rc-helis-and-planes ?
[01:18] <SpeedEvil> The wing points up at launch
[01:19] Action: Randomskk is backing them for their 'espresso' reward, which is the whole system with a lisa/m running paparazzi etc, everything you'd want to get hacking on one while also having fun flying the thing
[01:20] <Randomskk> okay, so actually shipping from hobbyking is pretty reasonable for slow - like $4. I could order stuff mostly as needed
[01:20] <SpeedEvil> I was more meaning take a quadcopter, and stick a wing on it pointed up
[01:20] <Randomskk> that's basically what that is ^
[01:20] <Randomskk> though designed to be both from the start
[01:20] <SpeedEvil> Indeed
[01:20] <Randomskk> yea, I'm kinda looking forward to getting it
[01:20] <Randomskk> they reckon early 2012 or something
[01:21] <SpeedEvil> I had a render somewhere of my UAV with a big wing on
[01:21] <Randomskk> should be a ton of fun to fly about
[01:21] <SpeedEvil> The numbers seemed to make a lot of sense
[01:23] <Randomskk> $2.36 for that 25g 1Ah 1S lipo
[01:24] <Randomskk> gotta solder your own wires to it though, hah
[01:24] <Randomskk> that's tons of fun
[01:24] <SpeedEvil> I think there is special solder
[01:24] <Randomskk> not sure if I should put some of these lipos in the order too then
[01:24] <SpeedEvil> Or just wimp out and conductive epoxy
[01:24] <Randomskk> hehe
[01:24] <Randomskk> I was planning to reflow it onto the pcb ;)
[01:24] <SpeedEvil> Probably better to get them fresh
[01:24] <Randomskk> good point
[01:24] <Randomskk> yea, will leave that for now.
[01:27] <Randomskk> ugh, props are backorder on hobbyking
[01:27] <Randomskk> still, $2 for a six-pack
[01:27] <Randomskk> they're tiny, too - 2.5 inches length
[01:27] <Randomskk> incy wincy.
[01:28] <Randomskk> could totally get the whole thing into a seeedstudio 10cm by 10cm PCB, if they did four layers :P
[01:31] <Randomskk> or I just order the 3020 props which are in-stock
[01:31] <Randomskk> and get 2508 when they're back in stock
[01:31] <SpeedEvil> Probably best to get both - at some point
[01:32] <Randomskk> indeed
[01:32] <Randomskk> however if the motor controller works with the motor on the bigger prop
[01:32] <Randomskk> it stands to reason it should also manage the smaller one
[01:32] <Randomskk> maybe design the copter to be able to take both prop sizes
[01:33] <Randomskk> it would still fit inside the 10cm PCB
[01:33] <Randomskk> ...just :P
[01:37] <Randomskk> right, ordered two of the tiny motors, one commercial 1S ESC and a set of props.
[01:37] <SpeedEvil> :)
[01:38] <Randomskk> in the meantime I guess I'd better design an ESC and get the PCB ordered
[01:39] <Randomskk> any thoughts on driving the high side mosfet?
[01:39] <Randomskk> still going to need a charge pump
[01:39] <SpeedEvil> Sorry - it's too late for actual thoughts at the moment.
[01:39] <Randomskk> fair enough
[01:39] <Randomskk> might just go with the plan from before with the BJTs
[01:39] <Randomskk> yea I should probably go to sleep >_>
[01:41] <SpeedEvil> Problem is any chip is liable to be large
[01:41] <Randomskk> the BJTs is with this: http://uk.farnell.com/nxp/pemd48-115/trans-npn-pnp-50v-0-1a-sot666/dp/1758013
[01:42] <Randomskk> I get two BJTs in the correct arrangement and four resistors
[01:42] <Randomskk> all in a SOT666
[01:42] <Randomskk> which is 1.7mm by 1.7mm
[01:42] <Randomskk> including leads
[01:42] <Randomskk> so each phase has one of the dual MOSFET chips and two of those BJT chips (for the high side)
[01:42] <Randomskk> all things considered I think that'l stay nicely small
[01:43] <Randomskk> the stm32 in lqfp48 7mm by 7mm is still going to dominate
[01:45] <SpeedEvil> That is good
[01:45] <SpeedEvil> Insane that the micros aren't much larger
[01:45] <Randomskk> the whole thing is crazy. cortex m0 in a 2mm by 2mm package?
[01:45] <Randomskk> electronics is insane now
[01:45] <SpeedEvil> Indeed.
[01:45] <Randomskk> you couldn't get resistors that small 20 years ago
[01:46] <Randomskk> now it's probably got as many megaflops as the moon landing computer or whatever
[01:46] <Randomskk> well almost certainly not as it doesn't have an fpu but whatever
[01:46] <SpeedEvil> In ~10 years, we'll be seeing that size of package running linux
[01:47] <Randomskk> hehe
[01:47] <Randomskk> it'l be great.
[01:47] <Randomskk> oh, and that dual-BJT device is also just right for the two transistors I need for the charge pump
[01:48] <Randomskk> so total BOM is looking like an STM32, three dual-mosfet chips, seven dual-bjt chips, some caps and diodes (there's a tiny tiny smd dual diode package) for charge pump, caps for stm32, resistors for feedback networks for motors (0402)
[01:48] <Randomskk> and prototyping connectors
[01:48] <Randomskk> I reckon that'l get a 2 layer pcb easy peasy
[01:49] <Randomskk> and in theory the stm32 has so many peripherals that doing at least basic motor control is not too much work
[01:49] <Randomskk> plus open-bldc already works on an stm32, though with I think a slightly more complex algorithm and hardware
[01:49] <Randomskk> perfect.
[01:50] <Randomskk> right, bed time for real. seeya. thanks for the help, too.
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[03:09] <Darkside> ok, tracker is ready for daves flight now
[03:10] <Darkside> with gfs data updates
[03:10] <Darkside> updated*
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[03:33] daveake (~daveake@daveake.plus.com) joined #highaltitude.
[04:01] <Darkside> hey daveake
[04:11] Nick change: SamSilver_ -> SamSilver
[04:15] <daveake> Morning :)
[04:16] <daveake> My body clock alarm was set to silly-o-clock :(
[04:16] <Darkside> heh
[04:16] <daveake> Quite pretty outside - moon shining through the broken clouds
[04:17] <Darkside> daveake: i've cleared the tracker and got the GFSs ready for you
[04:17] <Darkside> whats the expected burst alt?
[04:17] <daveake> Execllent, thanks.
[04:17] <daveake> Probably 32km
[04:17] <daveake> Not 40.6 ;)
[04:17] <Darkside> 5 and 5 for ascent/descent?
[04:18] <daveake> yep, close enough
[04:18] <daveake> http://habhub.org/predict/#!/uuid=69b49ce1a15299fe06af5bfabff458ad6230e74d
[04:18] <Darkside> ok, burst predictor is set
[04:18] <daveake> cheers
[04:19] <daveake> Just getting things powered up, and waiting on the helpers
[04:19] <Darkside> roger, i'll be watching
[04:27] <Darkside> daveake: get your chase car to have working GPS
[04:27] <daveake> roger, shirley
[04:28] <Darkside> its showing you at 0,0
[04:28] <daveake> payload's running now
[04:28] <daveake> It's correct on the map and panel
[04:30] <Darkside> yeah
[04:30] <Darkside> but your chase car is showing up at 0,0
[04:30] <daveake> OIC - not plugged the GPS in yet :)
[04:30] <daveake> Just a mo
[04:33] <daveake> ok, that's connected and waiting for a fix. The GPS is hanging out the kitchen window so may take a while. Chase "bus" hasn't turned up yet; when it does I'll take the kit out there
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[04:38] Nick change: Gillerire_ -> Gillerire
[04:43] <daveake> The GPS has a crap view from there, so the chase car may not get on the map till we actually have a chase car :-). Should be here very soon. A friend-of-a-friend has a 7-seater so we're all going in that.
[04:43] <Darkside> kk
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[05:23] <SamSilver> daveake: morning
[05:23] <daveake> Morning
[05:23] <daveake> Goodbye :-)
[05:23] <SamSilver> have a good one
[05:23] <daveake> Just signing off to go launch this thing :)
[05:23] <daveake> Cheers
[05:23] <SamSilver> cheers
[05:23] <daveake> I'll be online in the chase bus :)
[05:24] <daveake> GPS set up in the car but not on the map ... if anyone cvan fix that for me that'd be great ;)
[05:24] <daveake> BYEE!!!!
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[05:27] <griffonbot> Received email: Terry Baume "[UKHAS] Launch of Horus 16 this weekend"
[05:34] <juxta> Darkside, daveake will be facing the same issue I mentioned last night
[05:34] <juxta> can we reach him via email and send him chasetracker?
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[05:35] <SamSilver> juxta: he will be online from the chase bus
[05:35] <SamSilver> via laptop
[05:38] <juxta> alright, no probs
[05:38] <juxta> will chat to him then
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[05:45] <natrium42> juxta!!!
[05:45] <natrium42> you're launching soon?
[05:45] <juxta> heya natrium42 :)
[05:45] <juxta> yeah, tomorrow ;p
[05:46] <juxta> how are you doing by the way?
[05:47] <fsphil> ah, launch now in bill time I see
[05:49] <fsphil> wait, there's a road there called "Honesty Bottom"
[05:49] <juxta> I was equally impressed by Butts Furlong
[05:51] <Upu> mornig
[05:51] <Upu> not up yet
[05:51] <Upu> right I'll go get a shower
[05:52] <fsphil> nor me
[05:52] <Upu> lulz
[05:52] <fsphil> this is a lazy tracking for me :)
[05:52] <Upu> far too early for a sat
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[05:55] <juxta> oh. is it not even 6am yet over there?
[05:55] <fsphil> nah, nearly 7
[05:56] <fsphil> 6:55
[05:56] <juxta> still far too early
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[05:57] <juxta> hi daveake
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[05:58] <fsphil> hehe
[05:58] <juxta> scared him off
[05:59] <fsphil> no new telemetry in a while, hope they didn't break it
[05:59] <natrium42> juxta: doing great, thanks
[06:00] <natrium42> how is it to be back home?
[06:00] <juxta> ah, not too bad
[06:00] <juxta> weather is warming up here
[06:01] <juxta> still, some really great spots I want to go back to :)
[06:02] <Darkside> i really want to go up to the flinders ranges again
[06:02] <Darkside> i haven't been to wilpena pound in years
[06:03] <juxta> yeah me too
[06:03] <juxta> used to go every year
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[06:03] <Darkside> i used to go every month!
[06:03] <Darkside> volunteering
[06:03] <Darkside> was great
[06:03] <juxta> wow
[06:03] <juxta> that's a fair effort
[06:03] <Darkside> i used to do heaps of volunteer work around the park
[06:03] <Darkside> i know the area quite well now
[06:04] <juxta> I went here a lot: http://www.yktravelphoto.com/places/brachina-gorge-flinders-ranges-national-park/746/en/
[06:04] <Darkside> oh yes
[06:04] <Darkside> i know all about brachina gorge :D
[06:04] <Darkside> i used to be really into geology
[06:05] <Darkside> and brachina is a great place to go look at all the different layers
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[06:11] <Darkside> juxta: have you seen the acraman debris layer?
[06:13] <juxta> I dont think so
[06:13] <Darkside> its the layer of debris from when a meteorite hit whatever austaralia was however many millions of years ago
[06:14] <Darkside> the crater formed lake acraman, and debris from the hit landed aroun the area, forming a layer which is visible around the brachina gorge area
[06:14] <Darkside> its a very thin layer, i only know of one place where its really visible
[06:14] <juxta> wow
[06:14] <Darkside> theres a creek down near bunyeroo gorge, and its really easy to see the layer there
[06:15] <Darkside> its a layer of coarse rocks (i forget the type) sandwidched between two layers of shale/slate
[06:15] <juxta> I'll have to hunt it out next time I go up
[06:15] <Darkside> http://en.wikipedia.org/wiki/Acraman_crater
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[06:15] <juxta> back shortly, i forgot to eat
[06:16] <Darkside> haha
[06:17] <Darkside> man, i fuckin love the uni of adelaides journal access
[06:17] <Dutch-Mill> Good morning Y'all
[06:17] <Darkside> go to page and can't get the full text, just apply .proxy.library.adelaide.edu.au to the end of the hostname and VOILA - full text access
[06:19] <Darkside> well, in most cases
[06:19] <number10> Good morning Dutch-Mill
[06:19] <Darkside> so i see daveake is operating on ISH time
[06:20] <fsphil-laptop> so glad I didn't set my alarm for 6
[06:20] <Darkside> haha
[06:20] <fsphil-laptop> ah, launch
[06:20] <Darkside> ooh yes
[06:20] <Darkside> there we go
[06:22] <number10> me too fsphil-laptop - but UI kept waking up looking at the clock and dreaming about the tracker
[06:22] <Darkside> juxta: oh wow, the acraman layer can be seen in pichi richi pass!
[06:22] <eroomde> morning
[06:23] <number10> morning
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[06:25] <daveake_> Quick post ... back home .. launched 7:15 roughly. Nearly caught out by the wind ... the video of it nearly hitting the water tower should be entertaining!
[06:26] <daveake_> gotta go ...
[06:26] <daveake_> :)
[06:26] <eroomde> daveake_: good luck
[06:26] <fsphil-laptop> oops
[06:26] <daveake_> cheers
[06:26] <daveake_> interesting alt jump there
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[06:27] <eroomde> daveake_: sorry where are you based!?
[06:27] <daveake_> bbl
[06:27] <number10> I can hear it but not decoding all yey
[06:27] <daveake_> brightwalton
[06:27] <daveake_> berks
[06:27] <number10> yet
[06:27] <daveake_> Cool.
[06:27] <eroomde> oh. just you're overflying wallingford
[06:27] <eroomde> which is v near me
[06:27] <daveake_> :)
[06:27] <eroomde> pub meet some time. will discuss not suring your chase :)
[06:27] <daveake_> Really need to go ... we'll be behind it
[06:27] <eroomde> during*
[06:27] <daveake_> :D
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[06:28] <number10> firt packet decoded
[06:28] <number10> first
[06:28] <eroomde> jesus it'd be loud as anything here
[06:28] <eroomde> i must unpack my radio
[06:29] <Darkside> eroomde: see if you can receive it with a wet piece of string
[06:29] <eroomde> cheeky
[06:30] <eroomde> what is the velocity factor of wet string\/
[06:30] <Darkside> nfi
[06:30] <Darkside> ;p
[06:30] <eroomde> i am driving to cambridge today too
[06:30] <Darkside> haha perfect
[06:30] <mattltm> Morning al :)
[06:30] <eroomde> which daveake will be overflying
[06:31] <mattltm> Nice loud signal to me already :)
[06:31] <juxta> oh its airborne already :)
[06:32] <fsphil-laptop> planet earth still in my way :)
[06:32] <Darkside> fsphil-laptop: jeez, now you know how I feel
[06:32] <Darkside> :P
[06:33] <mattltm> signals a bit wavey
[06:33] <number10> yes
[06:33] <mattltm> Athough I am listening to it with a very old scanner today :)
[06:33] <Darkside> hmm what is this flight mode?
[06:33] <number10> flezible antenna ;
[06:33] <number10> ;)
[06:34] <number10> * flexible
[06:34] <Darkside> number10: looks like it might land right near you!
[06:34] <Darkside> you should go for a chase :P
[06:34] <fsphil-laptop> oops, I'm in the north sea again
[06:34] <number10> I dont have mobile internet, but may help once landed
[06:35] <mattltm> Ugh!
[06:35] <mattltm> thats not good!
[06:36] <number10> no - I have a stick that I'll try and install on laptop - but batteries not good in that
[06:36] <mattltm> is that the gps problem again?
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[06:36] <fsphil-laptop> padding?
[06:37] <fsphil-laptop> yea
[06:37] <eroomde> whoopsie
[06:37] <number10> what causes the problem
[06:37] <mattltm> Whats going on on the tracker?
[06:38] <fsphil-laptop> no zero padding after the decimal point
[06:38] <Darkside> oh dear
[06:38] <fsphil-laptop> so 5.0536 is transmitted as 5.536
[06:38] <number10> oh
[06:40] <mattltm> This does not look good!
[06:40] <fsphil-laptop> if it is what I think it is, it'll start working again shortly
[06:40] <Upu> morning
[06:41] <Upu> is your code broken again ?! :)
[06:41] <number10> morning Upu
[06:41] <fsphil-laptop> morning Upu ! :)
[06:41] <fsphil-laptop> I've never seen so many people on here this early before :)
[06:41] <Upu> Well I'm getting telemetry
[06:42] <mattltm> lol. Looks like its a good job I decided to track :)
[06:42] <fsphil-laptop> there it goes
[06:42] <fsphil-laptop> hmm
[06:42] <Upu> whats the make of the balloon ?
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[06:43] <fsphil-laptop> the prediction doesn't seem to be updating on my screen
[06:44] Nick change: The-Comp1ler -> The-Compiler
[06:44] <Darkside> same fsphil-laptop
[06:44] <Upu> signal is pretty faint
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[06:47] <daveake> On the M4 heading east. Got held up at the newbury showground
[06:47] <fsphil-laptop> ah, I'm no longer in the north sea. nice :)
[06:47] <Upu> hey daveake what balloon make and weight is it ?
[06:47] <daveake> Someone there was transmitting a load of rubbish
[06:48] <daveake> hwoyee 1000
[06:48] <daveake> 800g payload
[06:48] <Darkside> daveake: you buggered up your float to string conversion :P
[06:48] <daveake> Again????
[06:48] <daveake> Shit
[06:48] <Darkside> well look at the map
[06:48] <daveake> ok ................
[06:50] <mattltm> signal is fading in and out here
[06:50] <number10> Upu you have not got far to drive for the lakes - is 5.5 hours from here
[06:50] <daveake> very weak signal here
[06:50] <fsphil-laptop> that's nothing, I have to swim
[06:50] <daveake> I see lines :p
[06:51] <fsphil-laptop> lines are good :)
[06:51] <Darkside> daveake: where are you?
[06:51] <Darkside> if you're below it, you're going to get crap signal
[06:51] <daveake> M4 near jn 11 reading
[06:51] <Darkside> oh ok
[06:52] <daveake> ok, ssignal better now
[06:52] <daveake> gone
[06:52] <Darkside> its not so critical, you have 3 other receivers on it atm
[06:52] <Upu> number10 about 2 and 1/2
[06:52] <daveake> Excellent
[06:52] <fsphil-laptop> you're ascent rate is ... odd
[06:52] <daveake> Thanks chaps, as always
[06:52] <daveake> It was bouncy enough at ground level
[06:53] <fsphil-laptop> yea.. looks like a foil launch
[06:53] <daveake> The Ublox is set to aircraft mode
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[06:53] Nick change: Upu -> Upu_2E0UPU
[06:53] <daveake> Hey jack
[06:53] <Pudding> This makes poor viewing considering South Africa are playing Fiji at the moment
[06:53] <daveake> lol
[06:53] <jackclark> Morning mate
[06:53] <daveake> ok, just past jn12 (excuse my error earlier)
[06:54] <jackclark> Bit of a breeze this morning then
[06:54] <Pudding> So is the reason you can't see the flight path is because of weak signal?
[06:54] <Pudding> or the tracking site is f*cked?
[06:55] <eroomde> neither
[06:55] <Darkside> Pudding: the tracking site is working fine
[06:55] <jackclark> Working great for me
[06:55] <Upu_2E0UPU> if you're in IE9 put it in "compatibitly" mode
[06:55] <Upu_2E0UPU> or however you spell it
[06:55] <jackclark> Right now Dave might be hiring a boat
[06:55] <Upu_2E0UPU> its too early for spelling stuff accurately
[06:55] <daveake> Oh
[06:56] <jackclark> Almost
[06:56] <Upu_2E0UPU> Lowestoft
[06:56] <daveake> almost is ok
[06:56] <jackclark> Almost is great
[06:56] <daveake> Well, at least we can have fish and chips by the seaside
[06:56] <daveake> Can't get the gps to work on this laptop.
[06:56] <daveake> Just past jn 11 now
[06:58] <Pudding> A144?
[06:58] <daveake> We're doing M4 -> M25 --->> ????
[06:58] <daveake> A12 I guess now
[06:58] <eroomde> M11
[06:59] <eroomde> then hop off east halfway up the m11
[06:59] <number10> any complaints from Luton airport?
[06:59] <eroomde> often quicker
[06:59] <daveake> Well that was the plan
[06:59] <number10> M11 A14 maybe?
[06:59] <daveake> yes
[06:59] <daveake> But for lowestoft the a12 is quicker I think
[06:59] <fsphil-laptop> yea- London Luton airport -- it's nowhere near London
[07:01] <Upu_2E0UPU> daveake is the payload doing something that would cause the supply voltage to waver ?
[07:01] <eroomde> daveake: i am about to drive to cam
[07:01] <eroomde> watch my whizz past
[07:02] <Upu_2E0UPU> the frequency keeps going up and down but almost consistantly
[07:02] <daveake> Cheers :)
[07:03] <daveake> There's 20m line balloon --> chute and 10 chute --> payload. It's just swinging
[07:03] <Pudding> where is it now?
[07:03] <Upu_2E0UPU> new batteries in it this morning ?
[07:03] <daveake> Oh yus
[07:04] <Pudding> South Africa is beating Fiji btw ;-)
[07:04] <Upu_2E0UPU> btw shift @ 400 dial freq 434.650.220
[07:04] <fsphil-laptop> impending coordinate madness
[07:04] <daveake> Yes I reset to 400 on my laptop earlier
[07:04] <mattltm> Pudding: No running comentry please, I plan to watch later :)
[07:04] <daveake> :p
[07:05] <fsphil-laptop> there it goes :)
[07:05] <fsphil-laptop> at least we can predict that
[07:05] <daveake> Weeeeeeeeeeee
[07:05] Action: fsphil-laptop throws at %06i at daveake
[07:05] <eroomde> oh dear
[07:06] <fsphil-laptop> an*
[07:06] <daveake> I am Soooo embarassed :(
[07:06] <eroomde> :)
[07:06] <daveake> Nothing like having a very public bug :(
[07:06] <jackclark> :)
[07:06] <eroomde> you should rick-roll people with the gps plot
[07:06] <daveake> Well not Ariane 5 public, but still ...
[07:06] <eroomde> have it write something across the uk
[07:07] <Darkside> eroomde: SHHHHH
[07:07] <fsphil-laptop> annoyingly this will last until the payload gets to >0.1 degrees
[07:07] Action: mattltm thinks that daveake should be forecd to do 1000 "%06i" lines on the witeboard at the conferance
[07:07] <eroomde> 6 miles?
[07:07] <eroomde> 60*
[07:07] <fsphil-laptop> lol
[07:07] <eroomde> now, some number
[07:07] <Pudding> I have it near weybread
[07:07] <eroomde> i give up
[07:07] <Pudding> is that right?
[07:07] <daveake> lol
[07:07] <Darkside> why the hell don't people just use dtostrf...
[07:07] <Darkside> dtostrf works so well!
[07:08] <daveake> noted
[07:08] <Pudding> I'm a computer spaz, no idea what dtostrf means
[07:08] <eroomde> maybe a hardware in the loop test program could be good
[07:08] <eroomde> based on an arduino cos everyone has one
[07:08] <daveake> yep
[07:08] <fsphil-laptop> everyone? nuts :)
[07:08] <number10> I dont - have PIC
[07:09] <fsphil-laptop> uh-oh
[07:09] <eroomde> pyserial takes in a known good kml and spits it out to your flight computer gps connection in NMEA form
[07:09] <fsphil-laptop> I didn't see that coming
[07:09] <Darkside> dtostrf is a built-in c function
[07:09] <Darkside> ohd ear
[07:09] <daveake> just passing m4 jn 7. Slough. Time to hold my nose
[07:09] <mattltm> And.... Its off!
[07:09] <Darkside> another bug
[07:09] <fsphil-laptop> wow
[07:09] <Darkside> what the hell is it doing now?
[07:09] <fsphil-laptop> the latitude has the same bug lol
[07:09] <eroomde> come friendly balloons
[07:10] <Darkside> oh wow
[07:10] <Darkside> this is interesting
[07:10] <Darkside> well it seems to be in approx the right place now
[07:10] <daveake> wow indeed
[07:10] <Darkside> though moving a bit fast
[07:10] <jackclark> Nice attempt at drawing a fish
[07:10] <daveake> lol
[07:10] <fsphil-laptop> still not right yet
[07:11] <daveake> That's a slow ascent. It's gonna be wet?
[07:12] <daveake> Anyone got a prediction?
[07:12] <jackclark> Wet
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[07:12] <daveake> TA
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[07:12] <fsphil-laptop> can the telemetry on the map be edited? it would be simple to pad it
[07:12] <jackclark> NE of Lowestoft
[07:12] <daveake> :(
[07:12] <Darkside> fsphil-laptop: well habitat is meant to allow this
[07:12] <Darkside> but randomssk isn't here atm
[07:13] <Pudding> You a trained frogman Dave?
[07:13] <fsphil-laptop> I wouln't trust the current live prediction
[07:14] <daveake> Erm, no ... lol
[07:14] <Darkside> i think we have a new graph to go on the 'common errors' page
[07:14] <fsphil-laptop> lol
[07:14] <fsphil-laptop> I think the longitude is working again
[07:15] <fsphil-laptop> latitude is half way through doing it's funky thing
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[07:16] <RocketBoy> oh dear
[07:16] <daveake> indeed
[07:16] <Darkside> RocketBoy: haha
[07:17] <fsphil-laptop> those meddling portals again
[07:17] <RocketBoy> the balloon gods are at play again
[07:18] <Darkside> this is why you use BUILT-IN FUNCTIONS to convert between types
[07:18] <Darkside> jeez
[07:18] <Upu_2E0UPU> lol daveake are you trying to write a word on the tracker ?
[07:19] <fsphil-laptop> I estimate it's directly over cambridge atm
[07:19] <daveake> Trying, yes
[07:19] <eroomde> B
[07:19] <eroomde> coming up
[07:19] <eroomde> ollocks to this
[07:19] <Upu_2E0UPU> lol
[07:19] <Upu_2E0UPU> this still the padding issue ?
[07:20] <fsphil-laptop> yea, on the latitude this time
[07:20] <fsphil-laptop> it's over cambridge
[07:20] <fsphil-laptop> should fix itself shortly
[07:20] <fsphil-laptop> it's approaching 52.1 degrees
[07:24] <Darkside> this is the point at which we'd be pulling out the yagis and DFing the thing
[07:25] <fsphil-laptop> nearly there
[07:25] <fsphil-laptop> should snap back any moment
[07:26] <daveake> Should have brought my passport :p
[07:27] <fsphil-laptop> there it is
[07:27] <Upu_2E0UPU> boom
[07:27] <fsphil-laptop> afaik that's accurate now
[07:27] <Upu_2E0UPU> we have an 'A'
[07:27] <jackclark> No wetsuit needed
[07:27] <fsphil-laptop> looks like it tried to draw a star
[07:28] <fsphil-laptop> or a sphinx
[07:28] <daveake> The star of David ... lol
[07:28] <jackclark> Ha
[07:28] <RocketBoy> whats the predicted burst?
[07:28] <daveake> Not sure I can show my face at the conf aftyer this :p
[07:28] <Upu_2E0UPU> 32km
[07:29] <Upu_2E0UPU> 1000g Hwoyee + 800g payload
[07:29] <fsphil-laptop> I made the same error daveake :)
[07:29] <RocketBoy> on a H1600?
[07:29] <jackclark> Chase-Daveake just showed up
[07:29] <fsphil-laptop> (but fixed it before launch :p)
[07:29] <daveake> Rate is a bit lower than I expected so might be higehr
[07:29] <Upu_2E0UPU> slow ascent
[07:29] <daveake> yep
[07:29] <Upu_2E0UPU> it started off @ 5m/s
[07:29] <Upu_2E0UPU> ?
[07:29] <daveake> It was quite tricky to weigh the neck lift with the wind
[07:29] <daveake> Thought we had it right though
[07:29] <fsphil-laptop> you might have a leak
[07:30] <Upu_2E0UPU> see if the ascent rate comes down any more
[07:30] <daveake> Could be. All nicely tied up at the neck tho
[07:30] <Upu_2E0UPU> ah
[07:30] <Upu_2E0UPU> 2.8m/s
[07:30] <fsphil-laptop> it's pretty steady atm
[07:30] <Upu_2E0UPU> yeah gone back up
[07:30] <daveake> Alt plit looks pretty straight
[07:30] <fsphil-laptop> no signal here
[07:30] <daveake> plot
[07:31] <Upu_2E0UPU> not quite in range for you yet Phil
[07:31] <daveake> Signal ok here when we have it
[07:31] <daveake> M24 jn 21
[07:31] <Upu_2E0UPU> its actually very strong and stable here now
[07:31] <daveake> Cool
[07:31] <daveake> Should we go up the M11 or A12, ?
[07:32] <daveake> Or just get the ferry LOL
[07:32] <Upu_2E0UPU> well aim for Lowestoft on the A12 at the moment
[07:32] <daveake> OK ta
[07:33] <Upu_2E0UPU> M24 ?
[07:33] <daveake> M25 in a bumpy car
[07:33] <daveake> :D
[07:34] <RocketBoy> I think the A12 will be quicker
[07:34] <daveake> btw there's a backup SMS tracker thing
[07:34] <Upu_2E0UPU> A12 goes all the way there
[07:34] <daveake> Yes, I think so
[07:34] <RocketBoy> the M11 will be a bit of a dogs leg
[07:34] <Upu_2E0UPU> J28 is your turn off
[07:34] <daveake> I know the A12 :)
[07:35] <Upu_2E0UPU> rgr
[07:35] <daveake> Used to live in Ipswich
[07:35] <Upu_2E0UPU> oh is that where manningtree is
[07:35] <Upu_2E0UPU> I have a customer there and never knew where it is
[07:36] <RocketBoy> thats where I live (Felixstoe)
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[07:36] <RocketBoy> Felixstowe
[07:36] <daveake> Got a boat?
[07:37] <daveake> :)
[07:37] <RocketBoy> Ill get up and break out the yagi shortlly
[07:38] <fsphil-laptop> number10, clear skies there? you could probably see it
[07:39] <RocketBoy> oh duch mill is on
[07:42] <number10> I have been looking but not to sure what direction ;)
[07:43] <daveake> :)
[07:43] <jackclark> The threat of a dunking certainly adds to the excitement. Sorry Dave :)
[07:43] <daveake> It's ok. Happens
[07:44] Gillerire (~Jamie@122-49-162-80.ip.adam.com.au) joined #highaltitude.
[07:45] <daveake> Shame it didn't slow down a lot earlier
[07:45] <mattltm> anyone else getting a funky signal?
[07:45] <Upu_2E0UPU> define funky ?
[07:45] <Upu_2E0UPU> solid lines here
[07:45] <mattltm> I have 14 lines!
[07:45] <daveake> ok but a bit weak here
[07:45] <fsphil-laptop> I've seen that the odd time mattltm, it'll be something nearby
[07:46] <mattltm> ta fsphil-laptop, thats what I thought
[07:46] <griffonbot> @DutchMillbt: Tracking CLOUD2 (50 baud 425Hz shift 7N2 434.650MHz) #ukhas See http://t.co/7utdY6wn [http://twitter.com/DutchMillbt/status/114968446206345216]
[07:49] <fsphil-laptop> dial still spot on 434.650?
[07:49] <Upu_2E0UPU> yeah
[07:49] <Upu_2E0UPU> well 434.650.220
[07:50] <Upu_2E0UPU> shift is lower ~ 395-400
[07:51] <Upu_2E0UPU> that said
[07:51] <eroomde> it is happy again now?
[07:51] <Upu_2E0UPU> just retuned to 434.649.650
[07:51] <Upu_2E0UPU> yeah position is currently accurate
[07:52] <fsphil-laptop> I think I see it on the waterfall now
[07:52] <fsphil-laptop> yea, that's it
[07:53] <junderwood> There seem to be a lot of people missing leading zeros after the decimal point these days
[07:54] <Upu_2E0UPU> lack of float to string library in Arduino ?
[07:54] <daveake> Yes :( (hangs head in shame ... looks for gun ...)
[07:54] <daveake> You can all shout "haha!" in unison at the conf
[07:55] <eroomde> unless unison are on strike
[07:55] <juxta> wow, i just came home to find a very interesting path on the tracker
[07:55] <Upu_2E0UPU> "And I'd like to present the award for the most missing zeros to Dave Akerman"
[07:55] Action: fsphil-laptop shall practice his Nelson impression
[07:55] <junderwood> I think ferret did the same thing?
[07:55] <fsphil-laptop> daveake, at least you fixed the meridian bug :)
[07:56] <daveake> lol
[07:56] <daveake> I suddenl;y don't care that it's going to get wet :p
[07:56] <Upu_2E0UPU> fingers cross when the balloon bursts you keep the latex so it comes down quicker :)
[07:56] <daveake> Indeeeeeed
[07:57] <fsphil-laptop> the high altitude winds seem to be kinder, if it gets higher htan expected it might come back inland a bi
[07:57] <fsphil-laptop> bit
[07:57] <daveake> fingers crossed
[07:57] <daveake> Legs crossed too ... long drive for someone on diuretics :D
[07:58] <jackclark> Balloons make great catheters.
[07:59] <daveake> Left the spare ballon behind ;)
[07:59] <fsphil-laptop> starting to decode some numbers
[07:59] <daveake> cool
[08:01] <daveake> ok, turning on to the A12 now
[08:01] <junderwood> Wow. I'm getting some decodes with a discone at about 2.5m above the ground looking directly through several houses.
[08:01] <junderwood> Who needs the yagi
[08:02] <daveake> lol
[08:03] <juxta> daveake, are you running windows on your machine? if you have GPS connected I can send you something to plot your car on the tracker
[08:04] <daveake> Yes, Windows XP. I set up dl-fldigi to use the gps but it just says "error" in the status box
[08:05] smea (~smealum@85-171-203-85.rev.numericable.fr) joined #highaltitude.
[08:05] <daveake> but yes, send something
[08:05] <daveake> GPS works with a terminal program
[08:05] <juxta> yeah, i was playing with it last night. the current implementation with habitat etc isn't quite finished and isnt displaying vehicles for now
[08:05] <daveake> ok
[08:05] <daveake> I tried a USB ad
[08:06] <daveake> and a RS232 one; neither working
[08:06] <juxta> daveake, PM
[08:11] RocketBoy (steverand@5acfd4f7.bb.sky.com) left #highaltitude.
[08:14] <Upu_2E0UPU> getting decodes yet fsphil ?
[08:15] <fsphil-laptop> nearly got a couple, but it's weakened again
[08:15] <junderwood> Get ready for a 60 mile jump to somewhere near Wells-next-the-sea any time now.
[08:15] <junderwood> Should be closer to fsphil-laptop then (lol)
[08:15] <Upu_2E0UPU> haha
[08:16] <juxta> chase car on the map :D
[08:16] <jackclark> Nice
[08:16] <fsphil-laptop> indeed, impending wormhole :)
[08:17] <Upu_2E0UPU> nice bit of remote support there juxta
[08:17] <Upu_2E0UPU> very remote support
[08:17] <juxta> haha
[08:17] <Upu_2E0UPU> to a car
[08:17] <daveake> Woohoo I know where I am now :D
[08:17] <daveake> Cheers juxta
[08:17] <daveake> I guess I'm at the juxta position .... (sorry)
[08:17] Action: Upu_2E0UPU slaps daveake
[08:17] <daveake> yep
[08:17] <juxta> haha
[08:17] Action: fsphil-laptop hands daveake his coat
[08:17] <daveake> I'm here all week
[08:18] <daveake> swimming for the payload probabl;y
[08:18] <junderwood> there is goes
[08:19] <Darkside> aaand there we go
[08:19] <junderwood> s/is/it/
[08:19] <daveake> woooosh
[08:19] <Upu_2E0UPU> B...U...
[08:19] <Upu_2E0UPU> "bugger"
[08:20] <daveake> if that happens to the chase car I'll be worried ...
[08:20] <fsphil-laptop> it's drawn all over the sphinx now
[08:20] <junderwood> GTG BBL Good luck
[08:21] <daveake> Thanks!
[08:21] <Upu_2E0UPU> 434.648.910 @ 420 shift now
[08:22] <juxta> daveake, what is the expected burst altitude?
[08:23] <daveake> I was aiming at 32km but 33 seems more likely given the ascent rate
[08:24] <Upu_2E0UPU> err
[08:24] <Upu_2E0UPU> anyone else suddently got a stron 3rd line on the water fall
[08:24] <Upu_2E0UPU> frequency increaeding or is that local noise ?
[08:24] <daveake> Local
[08:24] <fsphil-laptop> not here
[08:24] <daveake> Fine here
[08:24] <Upu_2E0UPU> wierd
[08:24] <daveake> Now we're catching the thing up, can someone suggest a good place for us to park up?
[08:24] <juxta> daveake, how fast can your bus go?
[08:25] <Upu_2E0UPU> its just gone right through the water fall
[08:25] <daveake> Not fast enough LOL
[08:25] <daveake> I had a wall of yellow earlier as we passed the newbury show
[08:25] <daveake> We're doing 70mph
[08:25] <Upu_2E0UPU> daveake there are some services between junc 24 and 25
[08:26] <juxta> put the sirens on and do 100
[08:26] <Upu_2E0UPU> Feering
[08:26] <daveake> lol
[08:26] <daveake> If I was driving we would be :)
[08:26] <Upu_2E0UPU> then another one between J27 and J29 Colchester
[08:26] <fsphil-laptop> had a brief surge in signal strength, then weakened again
[08:28] jcoxon (~jcoxon@84.93.163.81) joined #highaltitude.
[08:28] <Upu_2E0UPU> morning jcoxon
[08:28] <jcoxon> morning
[08:28] <Upu_2E0UPU> whats flight mode 8 daveake ?
[08:29] <jcoxon> decimal place error?
[08:29] jgrahamc (52848bc1@gateway/web/freenode/ip.82.132.139.193) joined #highaltitude.
[08:29] <Upu_2E0UPU> yeah
[08:29] cloud2 (5368b24d@gateway/web/freenode/ip.83.104.178.77) left irc: Quit: Page closed
[08:29] <daveake> timeout for the cutdown that I decided not to use
[08:29] <jgrahamc> Got some good strings here in Fulham from CLOUD2
[08:29] <jcoxon> oh dears
[08:29] <fsphil-laptop> the old classic
[08:29] <daveake> yep
[08:29] <daveake> sorry
[08:29] <jgrahamc> Is it transmitting continuously?
[08:30] <daveake> yes
[08:30] <daveake> We're just stopping at the services now
[08:31] <jgrahamc> dial freq?
[08:31] <juxta> services = petrol station?
[08:31] <jcoxon> surely habitat could fix this error
[08:31] <fsphil-laptop> 434.649 here jgrahamc
[08:31] <jgrahamc> thx
[08:31] <fsphil-laptop> well it was
[08:31] <fsphil-laptop> gone now
[08:32] <fsphil-laptop> very odd
[08:32] peteh (5368b24d@gateway/web/freenode/ip.83.104.178.77) joined #highaltitude.
[08:32] <Upu_2E0UPU> 434.648.910 here
[08:32] <Upu_2E0UPU> so same as phil..
[08:32] <fsphil-laptop> I wonder, if my antenna is loosing sensitivity
[08:33] <Upu_2E0UPU> continuous transmission jgrahamc
[08:33] <Upu_2E0UPU> no delays between strings
[08:34] pelham_123 (56b2a389@gateway/web/freenode/ip.86.178.163.137) joined #highaltitude.
[08:34] RocketBoy (~steverand@212.183.128.3) joined #highaltitude.
[08:34] <fsphil-laptop> shift is about 420hz
[08:34] <peteh> you've speeding
[08:36] <jcoxon> so actually position is 52.0793028,0.636756
[08:36] <fsphil-laptop> yea
[08:36] <Upu_2E0UPU> yeah
[08:36] <Darkside> yeah
[08:36] <fsphil-laptop> aye
[08:36] <jcoxon> need Randomskk to fix habitat to correct for this
[08:36] <Darkside> CCCOMBO BREAKER
[08:36] <jcoxon> its a common error
[08:37] <fsphil-laptop> lol
[08:37] <fsphil-laptop> signal stronger again
[08:37] <Upu_2E0UPU> should fix when it goes over to 52.1
[08:37] <Upu_2E0UPU> if it does
[08:37] <jcoxon> and break when longitude goe over 0,1
[08:37] <jcoxon> :-p
[08:37] <jcoxon> goes*
[08:39] <fsphil-laptop> nice signal but no decodes
[08:39] <fsphil-laptop> odderer
[08:40] <jackclark> Nice height
[08:41] <daveake> The others are grabbing some food
[08:41] <Upu_2E0UPU> so daveake
[08:41] <Upu_2E0UPU> what is this "bus" ?
[08:41] <Upu_2E0UPU> is it really a bus ?
[08:41] <daveake> Nice clear sky but can't see it
[08:41] <daveake> Nah, 7-seater MPV thing
[08:41] <Upu_2E0UPU> ah ok
[08:41] <fsphil-laptop> should be directly north and up pretty high in the sky
[08:41] <Upu_2E0UPU> shame I wanted to say "all aboard the hab bus!"
[08:41] <daveake> No room in my car for 5 people plus laptop
[08:41] <daveake> lol
[08:42] <fsphil-laptop> is your baud rate exactly 50?
[08:42] <Upu_2E0UPU> decodes here fsphil @ 50
[08:42] <fsphil-laptop> hmm
[08:42] <fsphil-laptop> I might have broke something :)
[08:42] <daveake> yes, checked with logic analyser
[08:43] <fsphil-laptop> great signal now, but only getting fragments of tezt
[08:43] <fsphil-laptop> text
[08:43] <daveake> Are you tuned high instead of low?
[08:43] <Upu_2E0UPU> ok not going to Lakes today as the wife is in bed with flu so you have me all day
[08:44] <daveake> Might need all day :p
[08:44] <RocketBoy> daveake: what ascent rate did you fill to (or neck lift)?
[08:44] <daveake> Ext temp is high ... I did put a cover over the sensor to keep the sun off, but obviously that wasn't enough
[08:44] <daveake> Cosy inside
[08:44] <daveake> 2 cameras
[08:46] <juxta> daveake, what size balloon is it?
[08:47] <Upu_2E0UPU> 1000g H
[08:47] <Upu_2E0UPU> Hwoyee
[08:48] <daveake> yep. 800g payload
[08:52] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude.
[08:53] <fsphil-laptop> very good altitude
[08:53] <fsphil-laptop> aah got a string
[08:53] <fsphil-laptop> 541.6km :)
[08:53] <daveake> lol
[08:54] <juxta> nice one fsphil
[08:54] Action: LazyLeopard is not awake yet...
[08:54] <daveake> Oh, well done, I thought you meant you had that as the altitude :D
[08:54] <fsphil-laptop> lol
[08:54] <fsphil-laptop> these hwoyee balloons just don't like bursting
[08:55] <daveake> The others are getting food. I thi
[08:55] <LazyLeopard> Oh, now that's an interesting track...
[08:55] <daveake> I think we'll be late leaving
[08:55] Action: jcoxon says watch the ascent rate...
[08:56] <fsphil-laptop> bit of a curve at the end there
[08:56] <fsphil-laptop> uhoh
[08:56] <daveake> oh...
[08:56] <fsphil-laptop> only slight
[08:57] <daveake> I only wanted 32km :(
[08:57] <fsphil-laptop> 2.4m/s
[08:58] <fsphil-laptop> it's near bursting point I guess
[08:59] <daveake> So was I till we stopped
[09:01] <jcoxon> daveake, the good news is that its horizontal speed is low
[09:01] <jcoxon> and its still going up
[09:01] <jcoxon> so it'll get to burst in a sensible place
[09:01] <daveake> Yes. I'm hoping for a quick descent
[09:01] <daveake> :)
[09:01] <daveake> local noise here now
[09:01] <fsphil-laptop> here too
[09:01] <fsphil-laptop> very annoying
[09:01] <daveake> ok now
[09:02] <daveake> it is.
[09:02] <fsphil-laptop> this is more persistent
[09:02] <daveake> The insides are toasty
[09:02] <number10> didnt someone say 434.075 has less interference
[09:02] <jackclark> Tad warm
[09:03] <daveake> Rocketboy's dual launch ... that's whar I found and I think some others too
[09:03] <fsphil-laptop> number10, it seems to yea
[09:03] <daveake> Come on, 35k then pop you bugger
[09:03] <daveake> :)
[09:03] <fsphil-laptop> 1.8m/s
[09:03] G3VZV (56a90c28@gateway/web/freenode/ip.86.169.12.40) joined #highaltitude.
[09:03] <jgrahamc> Gotta go do kid stuff so end of tracking here. Best wishes for the landing!
[09:03] <fsphil-laptop> it's very near burst, or float
[09:04] <daveake> Splash landing!
[09:04] <Upu_2E0UPU> don't say the f word
[09:04] <daveake> Yes. Burst please :)
[09:04] <RocketBoy> 434.650 ins the input frequency of the local ham repeater
[09:04] <RocketBoy> is
[09:04] <fsphil-laptop> 35km, nice one!
[09:04] <daveake> Does it get the award posthumously?
[09:05] <peteh> two things near bursting point
[09:06] <daveake> Clearish skies here. Can't see it though.
[09:06] Nick change: LazyLeopard -> LazyL-M0LEP
[09:06] Nick change: fsphil-laptop -> fsphil_2I0VIM
[09:07] <fsphil_2I0VIM> just west of sudbury
[09:07] <juxta> hey wow, still rising :)
[09:07] <RocketBoy> so as its slowing the landing spot is going to head south
[09:08] <LazyL-M0LEP> Do you know where it actually is? The track on the tracker suggests there's been a bit of GPS confusion...
[09:08] jgrahamc (52848bc1@gateway/web/freenode/ip.82.132.139.193) left irc: Ping timeout: 252 seconds
[09:08] <daveake> closer to coast then?
[09:08] <daveake> damn local noise
[09:08] <fsphil_2I0VIM> LazyL-M0LEP, yea
[09:08] <jcoxon> LazyL-M0LEP, 52.0190386,0.691889
[09:08] <RocketBoy> well not too badly dave
[09:08] <daveake> ok, ta
[09:08] <jcoxon> its a decimal error
[09:08] <daveake> My heart canna take much more :p
[09:08] <RocketBoy> cos the cost is more N-S
[09:08] <LazyL-M0LEP> Ah. Leading-zero problem...
[09:08] <daveake> yes. again.
[09:09] <daveake> btw there's a backup SMS tracker in it
[09:09] Action: LazyL-M0LEP is receiving on the colinear outside rather than the usual yagi.
[09:09] <daveake> 35,5km and still going up
[09:10] <fsphil_2I0VIM> 1.1m/s
[09:10] <fsphil_2I0VIM> just :)
[09:10] <jackclark> Come on
[09:10] <daveake> just :(
[09:10] <daveake> BURST you bugger !!
[09:10] <daveake> Local noise ... taxi driver in the car park, maybe
[09:13] <daveake> Batteries should be good for 24 hours or so :p
[09:13] <jcoxon> less then 1m/s is float
[09:13] <jcoxon> in my books
[09:13] <Upu_2E0UPU> yeah my code would have fired its non existant pyro now
[09:13] <daveake> Should have hooked up that cutdown
[09:13] <daveake> damn
[09:13] <Upu_2E0UPU> that is still going consistantly up though
[09:14] <fsphil_2I0VIM> the float may yet keep you away from the coast :)
[09:14] <Upu_2E0UPU> sorta
[09:14] <daveake> :)
[09:14] <jcoxon> wow 40C inside
[09:14] <daveake> 2 cameras
[09:14] <Upu_2E0UPU> btw you just made 7th highest
[09:14] <daveake> :D
[09:15] <daveake> It can contemplate that when it's bobbing around in the sea
[09:16] <Upu_2E0UPU> 6th highest UK launch......
[09:16] <Darkside> lol
[09:16] <daveake> Woohoo
[09:16] <Darkside> what are the error bars on GPS altitude?
[09:16] <daveake> I *really* wasn't trying for that
[09:16] <Upu_2E0UPU> Darkside isn't really getting worried I suspect :)
[09:16] <RocketBoy> if it carries on i think the landing point will be going over me
[09:16] <Darkside> quite warm outside!
[09:16] <Darkside> Upu_2E0UPU: haha nope
[09:16] <Darkside> not worried *at all*
[09:17] <fsphil_2I0VIM> lol
[09:17] <Upu_2E0UPU> no the inside is going to melt before it gets much further
[09:17] <daveake> Yeah, the sensor is black so I put some duct tape over with gaps to try and stop it being baked by the sun. Failed.
[09:17] <fsphil_2I0VIM> what
[09:17] <fsphil_2I0VIM> oh right
[09:17] <fsphil_2I0VIM> lost another zero
[09:18] <fsphil_2I0VIM> at least it should fix itself shortly
[09:18] <daveake> yes
[09:18] <daveake> At least this gives my helpers more time to fill their faces :D
[09:19] Gillerire (~Jamie@122-49-162-80.ip.adam.com.au) left irc: Quit: Quit
[09:19] <daveake> ok, 36k and burst. I'm getting impatient :)
[09:19] <daveake> so slow ...
[09:19] <Darkside> floooooooating
[09:19] <Darkside> lol
[09:19] <daveake> you used the f word!
[09:20] <G3VZV> is wondering what the GPS position issue is and where actually is the balloon?
[09:20] <Upu_2E0UPU> padding error G3VZV
[09:20] <daveake> lost leading zeroes
[09:20] <fsphil_2I0VIM> 0.2m/s
[09:21] <RocketBoy> its gone up and down - itsa float
[09:21] <daveake> dammit
[09:21] <Upu_2E0UPU> not seen a down ?
[09:21] <daveake> Nor here
[09:22] SamSilver (2985f435@gateway/web/freenode/ip.41.133.244.53) left irc: Ping timeout: 252 seconds
[09:22] <fsphil_2I0VIM> 0.2m/s again
[09:22] <daveake> 2 - 7 metres per reading
[09:22] <fsphil_2I0VIM> gps about to fix itself
[09:22] <Darkside> or not
[09:22] <Darkside> lol
[09:22] <fsphil_2I0VIM> it's like a teenager
[09:23] <fsphil_2I0VIM> there we go
[09:23] <fsphil_2I0VIM> back to normal
[09:23] <Darkside> lol 0 m/s ascent rate
[09:23] <Darkside> awesome
[09:23] <fsphil_2I0VIM> oops
[09:23] <daveake> yep
[09:23] <Darkside> floooooooooating
[09:23] <fsphil_2I0VIM> float float float :)
[09:23] <Darkside> haha
[09:23] <daveake> several readings within 1m
[09:23] <daveake> and off again
[09:23] <fsphil_2I0VIM> it's stretching itself
[09:23] <Darkside> now you need to wait for it to break down daveake
[09:23] <Darkside> always fun
[09:23] <daveake> :)
[09:24] <jcoxon> daveake, i work hard to get these floats!
[09:24] <daveake> 36km
[09:24] <daveake> LOL
[09:24] <fsphil_2I0VIM> congrats!
[09:24] <daveake> :D
[09:24] <jackclark> Nice
[09:24] <Darkside> 36km!
[09:24] <Darkside> whoooo
[09:24] <Upu_2E0UPU> grats
[09:24] g7nbp (~chrisw@host217-44-148-218.range217-44.btcentralplus.com) joined #highaltitude.
[09:24] <daveake> I'd like to thank my friends, my family, the cats ....
[09:25] <Upu_2E0UPU> 5th....
[09:25] <daveake> :D
[09:25] <jackclark> :)
[09:25] <G3VZV> Solid signal in Milton Leynes 16dB S/N (now that I am actually beaming at the thing!)
[09:25] <daveake> :)
[09:25] <fsphil_2I0VIM> very weak signal here
[09:26] <fsphil_2I0VIM> burst?
[09:26] <fsphil_2I0VIM> she's gone all wobbly
[09:26] <daveake> Where is this in the rx distance list?
[09:26] <daveake> still going up
[09:26] <daveake> just
[09:26] <fsphil_2I0VIM> weird
[09:27] <RocketBoy> needs to burst now
[09:27] <LazyL-M0LEP> Deinitely
[09:27] <daveake> it is a bit sideways on the wfall
[09:27] <fsphil_2I0VIM> yea
[09:27] <daveake> weeeee
[09:27] <RocketBoy> wow
[09:27] <fsphil_2I0VIM> yikes
[09:27] <fsphil_2I0VIM> wasn't me :)
[09:27] <daveake> ok, that has to be a burst
[09:27] <fsphil_2I0VIM> never seen one like that before
[09:27] <Darkside> dopper shift?
[09:28] <Darkside> due to teh velocity increase?
[09:28] <RocketBoy> hit a ufo
[09:28] <LazyL-M0LEP> Frequency rising, falling, swooping...
[09:28] <daveake> settled again
[09:28] <daveake> Weird
[09:28] <RocketBoy> wow
[09:28] <daveake> not burst
[09:28] <Darkside> thats interesting
[09:28] <Darkside> it sounds like sdoppler shift
[09:28] <Darkside> did anyone get a screencap?
[09:28] <daveake> I have the audio recording
[09:28] <fsphil_2I0VIM> I've a recording
[09:28] <daveake> No too late
[09:28] <daveake> cool
[09:29] <jcoxon> eek rain
[09:29] <G3VZV> jetwash from a passing SR71?
[09:29] <daveake> LOL
[09:29] <daveake> UFO
[09:29] <fsphil_2I0VIM> damn, no I don't -- forgot I'd crashed it
[09:29] <daveake> Buzz !!
[09:29] <Upu_2E0UPU> that will make an interesting piture
[09:29] <Upu_2E0UPU> picture
[09:30] <daveake> s'ok I''m recording audio and decodes
[09:30] <Upu_2E0UPU> oh I forgot to record again
[09:30] <daveake> 36.1
[09:30] <Upu_2E0UPU> damn
[09:30] <daveake> Yeah, I did that for Steve's flight :(
[09:30] <Darkside> burst!
[09:31] <fsphil_2I0VIM> did it?
[09:31] <RocketBoy> bit of a fade?
[09:31] <daveake> no
[09:31] <Upu_2E0UPU> fine here
[09:31] <fsphil_2I0VIM> signal still very weak here
[09:31] <fsphil_2I0VIM> definitely something up with my antenna
[09:31] <Upu_2E0UPU> nice and strong and stable, don't know what was up with that wobble earlier
[09:31] <daveake> About 2 metres extra per setnence
[09:31] <daveake> no, very strange
[09:31] <Upu_2E0UPU> is that internal temp correct ?
[09:32] <fsphil_2I0VIM> micro meteor :)
[09:32] <daveake> Probably
[09:32] <daveake> It'll cool down when the cameras stop!
[09:32] <Upu_2E0UPU> whats the box made from ?
[09:32] <daveake> I don't remember how long they run for, but 4 hours ish
[09:32] <daveake> 50mm foam poly
[09:32] <Upu_2E0UPU> whats its melting point ? P)
[09:32] <Upu_2E0UPU> :)
[09:32] <daveake> lol
[09:33] <fsphil_2I0VIM> why the sudden move to the south east
[09:33] <Upu_2E0UPU> SR71 jet wash durr scroll back
[09:34] <Upu_2E0UPU> that is a float
[09:34] <Upu_2E0UPU> not going anywhere now
[09:34] <daveake> sure looks like a float
[09:34] <RocketBoy> 20hz step change in freq?
[09:34] <Upu_2E0UPU> it jumped for me as well
[09:35] <daveake> down 2m
[09:35] <Upu_2E0UPU> that a float or a leak ?
[09:35] <fsphil_2I0VIM> it's official then :)
[09:35] <daveake> damn
[09:35] <peteh> drop
[09:36] <Upu_2E0UPU> float...
[09:36] <RocketBoy> is it actually reporting the correct position right now?
[09:36] <fsphil_2I0VIM> yea
[09:37] <Upu_2E0UPU> and off we go again up and up
[09:37] <LazyL-M0LEP> What breed of balloon is it?
[09:37] <daveake> 4th not far off :)
[09:37] <fsphil_2I0VIM> or is it .. seems to be moving very fast
[09:37] <daveake> hwooooooyee
[09:38] <Upu_2E0UPU> lol
[09:38] <Upu_2E0UPU> 3meters off 4th
[09:38] Action: LazyL-M0LEP half-guessed that'd be the answer...
[09:38] <Upu_2E0UPU> 2 meters...
[09:38] jcoxon_ (~jcoxon@87.115.72.230) joined #highaltitude.
[09:38] <Upu_2E0UPU> = :)
[09:39] <daveake> woohoo
[09:39] <Upu_2E0UPU> bingo
[09:39] <Upu_2E0UPU> 4th
[09:39] <daveake> BURST PLEASE !!!!
[09:39] <fsphil_2I0VIM> haha
[09:39] <Upu_2E0UPU> you're in big boy territory now
[09:39] <Upu_2E0UPU> land of the 1600g
[09:39] <RocketBoy> oh dear
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[09:39] <Upu_2E0UPU> lol
[09:39] <daveake> nochance of 3rd!
[09:39] <Upu_2E0UPU> Steve sums up the situation
[09:39] <fsphil_2I0VIM> indeed
[09:39] Action: Randomskk stumbles out of bed
[09:39] <RocketBoy> its gonna get wet
[09:40] <Randomskk> I guess habitat should definitely have a fix for this
[09:40] <Upu_2E0UPU> Morning Randomskk
[09:40] <jcoxon_> Randomskk, fix the tracker!
[09:40] <Randomskk> but I don't know how
[09:40] <jcoxon_> do it!
[09:40] <Randomskk> jcoxon_: what needs doing?
[09:40] <peteh> go for it!
[09:40] <jcoxon_> hehe
[09:40] <Randomskk> I can shove in any given random code change for incoming telemetry
[09:40] <fsphil_2I0VIM> signal has faded quite a bit here now
[09:41] <RocketBoy> its getting stronger here
[09:41] <Upu_2E0UPU> I need to go shopping soon
[09:41] <Upu_2E0UPU> and floating again
[09:41] <fsphil_2I0VIM> dutch mill or tim might be recovering this one
[09:41] <daveake> :p
[09:41] <fsphil_2I0VIM> almost vanished from my waterfall now
[09:42] <jcoxon_> daveake, is the lat/lon fixed length string?
[09:42] <daveake> shoud be
[09:42] <Upu_2E0UPU> its interesting my code would have terminated this flight along time ago and its gone 2000 meters more under a technical float condition
[09:43] <Randomskk> daveake: if I have habitat insert enough 0s after the decimal place to ensure that there are n digits after the decimal place
[09:43] <RocketBoy> mmm - more gravity wave data
[09:43] <Randomskk> will that make it be okay?
[09:43] <Randomskk> also, if so, how many digits is it meant to be?
[09:44] <fsphil_2I0VIM> seven digits after the decimal place on latitude from the looks of it
[09:44] <LazyL-M0LEP> Hmmm... It's fading here, too...
[09:44] <fsphil_2I0VIM> eg. 52.1003888
[09:45] <fsphil_2I0VIM> then 52.999410
[09:45] <LazyL-M0LEP> Still clearly readable, but volume's down.
[09:45] <Randomskk> is that actually fixed?
[09:45] <fsphil_2I0VIM> seems to be
[09:45] <fsphil_2I0VIM> longitude is seven digits too
[09:46] <Upu_2E0UPU> nice and strong still here
[09:46] <Upu_2E0UPU> I assume distance in dl-fldigit is in KM ?
[09:46] <fsphil_2I0VIM> yea
[09:47] <Upu_2E0UPU> 300km
[09:47] <mattltm> Can some of you guys do me a huge favor??
[09:47] <fsphil_2I0VIM> wobbly signal again
[09:47] <Upu_2E0UPU> can dl-fldigi control a rotator ?
[09:47] <Upu_2E0UPU> burst
[09:47] <LazyL-M0LEP> Descent initiated...
[09:47] <fsphil_2I0VIM> yes!!
[09:48] <fsphil_2I0VIM> pinging daveake, incase he hasn't noticed
[09:48] <RocketBoy> daveake: I recommend this http://wiki.ukhas.org.uk/code:emulator for testing code - shows up these sorts of errors
[09:48] <Darkside> about time
[09:48] <daveake> Cheers
[09:48] <Darkside> daveake: i don't think you're getting this one back
[09:48] <Darkside> lol
[09:48] <daveake> No, probably not
[09:48] <RocketBoy> (sorry not very helpful now i know)
[09:48] <LazyL-M0LEP> ...and oh boy has the signal gone wobbly...
[09:48] <Darkside> 36250m
[09:48] <Darkside> not a bad effort :-)
[09:49] <Upu_2E0UPU> wobbly but ok
[09:49] <daveake> burst??
[09:49] <Darkside> i wonder if the wobbly signal is temp change or doppler shift due to the veolcity
[09:49] <Upu_2E0UPU> yes burst
[09:49] <fsphil_2I0VIM> very burst
[09:49] <daveake> WOOHOO!
[09:49] <daveake> OK, which port do I head forf? ;)
[09:49] <jcoxon_> felixstowe
[09:49] <jcoxon_> :)
[09:49] <G3VZV> velocities
[09:49] <jackclark> Felistowe
[09:50] <fsphil_2I0VIM> is that position accurate?
[09:50] <Upu_2E0UPU> no idea lost track
[09:50] <RocketBoy> :-) just looking
[09:50] <fsphil_2I0VIM> same here lol
[09:50] <peteh> New book out soon .How to become a beachcomber
[09:50] <Upu_2E0UPU> 51.9148908 or 51.09148908
[09:50] <fsphil_2I0VIM> seven digits, so the first one
[09:51] <daveake> lol
[09:51] <daveake> ok, we're setting off now
[09:51] <RocketBoy> its only +3db on the whip
[09:51] <peteh> East or west?
[09:52] <RocketBoy> must be under the null
[09:52] <Upu_2E0UPU> tumbling I suspect
[09:52] <fsphil_2I0VIM> it's still over land
[09:52] <fsphil_2I0VIM> 51.9136516,1.0456415
[09:52] <daveake> la la la la land land land land ... pretty please
[09:53] <Upu_2E0UPU> lost it
[09:53] <Upu_2E0UPU> just went
[09:53] <Randomskk> dynamic predictions are not looking happy
[09:53] <G3VZV> its shuddered then stopped
[09:53] <daveake> lost here too
[09:53] <Randomskk> so uhm
[09:53] <daveake> how strange
[09:53] <Upu_2E0UPU> think it died :/
[09:53] <Upu_2E0UPU> CLOUD2,1359,09:52:36,51.9120780,1.449116,24063,13,91,22,38,10,6.15,8*7E
[09:53] <daveake> :(
[09:53] <LazyL-M0LEP> Good luck! Lost it here too, but don't have the yagi out.
[09:53] <Randomskk> I guess that means it's a bit late to announce that I've just written the filter that would make sure the part after the . is 7 digits?
[09:53] <fsphil_2I0VIM> d'oh
[09:53] <LazyL-M0LEP> No.
[09:54] <Upu_2E0UPU> thats a failure LazyL-M0LEP don't think a Yagi will help
[09:54] Dutch-Mill-mob (~androirc@62.140.137.96) joined #highaltitude.
[09:54] <daveake> dammit
[09:54] <jcoxon_> it might shudder back into life...
[09:54] <daveake> backup tracker possib ly to the rescue
[09:54] <fsphil_2I0VIM> hope so
[09:54] <LazyL-M0LEP> ...if the chute opens?
[09:54] <jcoxon_> daveake, do you text it?
[09:54] <LazyL-M0LEP> hopefully!
[09:54] <daveake> call
[09:55] <daveake> voicemail lol
[09:55] <jcoxon_> okay well it'll be worth calculating descent rate to work out when its in range
[09:55] <G3VZV> hehe
[09:55] <RocketBoy> very faint
[09:55] <jcoxon_> if its a sea landing you won't have much time
[09:55] <daveake> aerial broken off maybe
[09:55] <Upu_2E0UPU> still got it RocketBoy ?
[09:55] <fsphil_2I0VIM> oooh
[09:56] <Dutch-Mill-mob> Signal gone ...
[09:56] <daveake> nothing here at all
[09:56] <jcoxon_> where do we think it is?
[09:56] <fsphil_2I0VIM> 51.9120780,1.0449116
[09:58] <jcoxon_> daveake, keep calling it
[09:58] <daveake> am doing
[09:58] <jcoxon_> i reckon it'll land at 11:05
[09:59] <G3VZV> ?land
[09:59] <jcoxon_> oo a string
[09:59] <daveake> !!
[09:59] <Upu_2E0UPU> Steve
[09:59] <jcoxon_> landing predictor says landing near A14 near felixstowe
[09:59] <Upu_2E0UPU> antenna broken then
[09:59] <jcoxon_> just clearing the river orwell
[10:00] <daveake> looks like it
[10:00] <daveake> Should have stuck with my previous design
[10:00] <Upu_2E0UPU> decent looks fine parachute open
[10:01] <daveake> cool
[10:01] <fsphil_2I0VIM> why am I not seeing this
[10:01] <fsphil_2I0VIM> tracker still has it stuck over the water
[10:01] <jcoxon_> oh it is
[10:01] <fsphil_2I0VIM> ah
[10:01] <jcoxon_> but i'm correcting it
[10:02] <jcoxon_> now its back
[10:02] <fsphil_2I0VIM> aah, about to correct itself
[10:02] <Upu_2E0UPU> you owe Steve and his Yagi a pint ..
[10:02] <daveake> I do
[10:02] <daveake> I owe lots of pints!
[10:02] <jcoxon_> it seriously needs to speed up
[10:02] <fsphil_2I0VIM> and a new window if it keeps heading towards him
[10:03] <daveake> :(
[10:03] <Upu_2E0UPU> not going too ..
[10:03] <Upu_2E0UPU> thick air is a bitch like that
[10:03] <daveake> :(
[10:03] shipit_ (~shipit@c-67-180-23-104.hsd1.ca.comcast.net) left irc: Remote host closed the connection
[10:04] <jcoxon_> manual input in to LP says still on land
[10:04] <daveake> :)
[10:04] <fsphil_2I0VIM> yea
[10:05] <jcoxon_> 52.03 1.424
[10:05] <jackclark> Come on
[10:05] <jcoxon_> at 11:09
[10:05] <daveake> CURREnt alt?
[10:05] <jcoxon_> last was 4 mins ago
[10:05] <jcoxon_> 14041
[10:05] <daveake> ok
[10:05] <daveake> tvm
[10:05] <fsphil_2I0VIM> should be over manningtree now?
[10:06] <peteh> Need to stop
[10:06] <jcoxon_> daveake, my advice is to continue to woodbridge
[10:07] <jcoxon_> it'll clear teh deben and if you go to felixstowe it'll take a while to get back
[10:07] <daveake> ok
[10:07] <fsphil_2I0VIM> yea
[10:07] <fsphil_2I0VIM> unless there's a bridge there?
[10:07] g7nbp (~chrisw@host217-44-148-218.range217-44.btcentralplus.com) left irc: Quit: Leaving
[10:07] <jcoxon_> nope
[10:07] <jcoxon_> a ferry
[10:07] <fsphil_2I0VIM> ah
[10:07] <daveake> :(
[10:07] <fsphil_2I0VIM> they're no fun
[10:08] shipit (~shipit@c-67-180-23-104.hsd1.ca.comcast.net) joined #highaltitude.
[10:08] <LazyL-M0LEP> Could be heading for Rendlesham UFO territory... ;)
[10:09] <Upu_2E0UPU> so anythign from GSM ?
[10:09] Nick change: Upu_2E0UPU -> Upu
[10:09] <jcoxon_> it'll be down soon
[10:09] <daveake> not yet
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[10:10] <RocketBoy> my antenna is pointing up
[10:11] <jcoxon_> RocketBoy, any data?
[10:12] <griffonbot> Received email: Mike Willis "Re: [UKHAS] CLOUD2 Launch Saturday 17th September"
[10:12] <Darkside> hmm
[10:12] <Darkside> no data?
[10:13] <RocketBoy> yep im getting data but no full strings
[10:13] <jcoxon_> can we have some?
[10:13] <jcoxon_> run the prediction off it
[10:13] <RocketBoy> very wobbly
[10:13] <fsphil_2I0VIM> jcoxon_, think we should re-enable uploading strings even with bad checksums :)
[10:14] <jcoxon_> well, i suspect they aren't even complete strings
[10:14] <jcoxon_> RocketBoy, so its still in the air
[10:14] <RocketBoy> yep
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[10:16] <RocketBoy> just got 52.965350,1.5719126
[10:16] Nick change: fsphil_2I0VIM -> fsphil-m
[10:16] <RocketBoy> no alt
[10:16] <fsphil-m> not good
[10:16] <RocketBoy> its a real challenge
[10:17] <jcoxon_> 52.0965350,1.5719126
[10:17] <daveake> we've stopped to try with the yagi. Nothing
[10:17] <fsphil-m> it's at the coast
[10:17] <daveake> Anyone suggest where to drive to now and try from?
[10:17] <daveake> ta
[10:18] <fsphil-m> Aldeburgh
[10:18] <fsphil-m> closest town
[10:18] <jcoxon_> its over orford ness
[10:18] <fsphil-m> or Orford
[10:18] <fsphil-m> silly rivers
[10:18] <jcoxon_> orford is a difficult one to get to
[10:18] <jcoxon_> head to aldeburgh
[10:19] <daveake> ok, entering into satnav now, cheers
[10:19] <RocketBoy> CLOUD2,1464,10:1:40,52.1334071,1.6466190,0080,63,46,-7,-,9,6.01,8*71
[10:19] <daveake> fish and chips await lol
[10:19] <jcoxon_> its out to sea
[10:19] <RocketBoy> $$CLOUD2,1466,10:19:1052.1389190,1.6571876,05086,60,51,-6,-1,9,6.00,8*78
[10:19] <RocketBoy> $$CLOUD2,1467,10:19:25,42.1414678,1.66r2441,04990,55,49,-6,-1,9,6.00,8*70
[10:19] <RocketBoy> $
[10:19] <daveake> still no gsm
[10:19] <daveake> :(
[10:19] <fsphil-m> that's in Aldeburgh
[10:20] <daveake> ok
[10:20] <fsphil-m> wait, google maps is lying
[10:20] <fsphil-m> it's over the water :(
[10:20] <daveake> :(
[10:20] <jcoxon_> yeah thats the nearest point
[10:20] <RocketBoy> yea a good string
[10:20] <jcoxon_> the green arrow is out to sea
[10:20] <daveake> ah well, we'll go there anyway
[10:20] <jcoxon_> yeah its a nice place
[10:21] <RocketBoy> should be on the tracker
[10:21] <jcoxon_> yup
[10:21] <fsphil-m> is
[10:21] <jcoxon_> another
[10:21] <daveake> yep
[10:21] <daveake> damn
[10:21] <RocketBoy> seems to have stabilzed fo the mo
[10:21] <daveake> Well, thanks very much guys for your help so far.
[10:21] <daveake> So close to landing on land
[10:21] <daveake> Never mind
[10:22] <RocketBoy> $$CLOUD2,1476,10:21:38,52.1590238,1.7037576,04113,40,54-3,-1,9,5.94,8*7C
[10:22] <RocketBoy> $$CLOUD2,1477,10:21:53,52.1607126,1.7074448,0412,42,1,)2,0,9,5.99,8*59
[10:22] <RocketBoy> $
[10:23] <BrainDamage> you should start streaming IBAN numbers instead, I think peope would be much more interested
[10:23] <jcoxon_> hehe
[10:23] <RocketBoy> fading fast
[10:24] <RocketBoy> behind the beachhuts
[10:25] G0MJW (~chatzilla@213-152-32-108.dsl.eclipse.net.uk) joined #highaltitude.
[10:25] <RocketBoy> still just about see it in the noise
[10:26] daveake_ (~daveake@31.96.168.235) joined #highaltitude.
[10:26] <G0MJW> Hmm - missed it - normally use twitter. Still I see it was successfully tracked.
[10:26] <RocketBoy> gone
[10:26] <SpeedEvil> :/
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[10:30] <daveake_> SmS back all zeroes as expected
[10:30] <Upu> so guess its down tot he sms...
[10:30] <Upu> ah
[10:31] <Upu> so no final position ?
[10:31] <daveake_> crackles only on the readio
[10:31] <daveake_> could be local noise
[10:31] <daveake_> nothing that sounds like rtty
[10:32] RocketBoy (~steverand@212.183.128.3) left irc: Ping timeout: 276 seconds
[10:33] <daveake_> got posn 52.,216776, 1.840388
[10:33] chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) joined #highaltitude.
[10:34] <SpeedEvil> Guess it's a bit far to swim.
[10:34] pelham_123 (56b2a389@gateway/web/freenode/ip.86.178.163.137) left irc: Quit: Page closed
[10:35] <daveake_> 52.229120, 1.856401
[10:35] BillH (02607818@gateway/web/freenode/ip.2.96.120.24) left irc: Ping timeout: 252 seconds
[10:36] <daveake_> sea
[10:36] <Upu> that from an SMS ?
[10:36] <daveake_> yes
[10:36] <Upu> so its floating ?
[10:36] <daveake_> so far
[10:37] <Upu> 6 miles out
[10:37] <Upu> hmm
[10:37] <daveake_> lost gsm now
[10:37] <daveake_> :(
[10:37] <fsphil> any boats for hire?
[10:37] <daveake_> will find out
[10:38] <jackclark> Nice job Dave!
[10:38] RocketBoy (~steverand@212.183.128.3) joined #highaltitude.
[10:38] <daveake_> No reply to last 2 gsm calls
[10:38] Pudding (de9b3c3b@gateway/web/freenode/ip.222.155.60.59) left irc: Quit: Page closed
[10:39] <Upu> good luck I'm going to take dog out
[10:39] <daveake_> If I get a signal from the radio at the coast, and we can find some way of getting out there, I'll do it.
[10:39] <RocketBoy> the last semi good string i got was $$CLOUD2,1521,10:32:34,52.2232156,1.8502810,40479,23,36,12,13,9,5.97,9*7A
[10:39] <daveake_> Second float of the day lol
[10:39] <RocketBoy> hang on
[10:40] <daveake_> cheers
[10:40] <RocketBoy> $$CLOUD2,1522,10:32:49V52.2245963,1.8518033,0842,
[10:40] <daveake_> now, if someone could book a boat for me ... :p
[10:40] <RocketBoy> that was the last
[10:41] <RocketBoy> cant hear of see it now
[10:41] <RocketBoy> or
[10:42] <daveake_> ok, thanks very much Steve
[10:42] <daveake_> We'll whip out the yagi at the coast
[10:42] <daveake_> Still no replies from the GSM. Did get 3 earlier with positions
[10:43] <RocketBoy> that was from the clifftops at felixstowe with an unobsured view of the sea
[10:44] <RocketBoy> and the yagi was peaking towards the sea - about 20deg e of coastline
[10:44] <RocketBoy> ne that is
[10:45] <daveake_> ah
[10:45] <RocketBoy> were they sensible dave (the gsm readings)
[10:45] <daveake_> yes
[10:46] <daveake_> First was all zeroes. I typed in 2 of the real ones and they were "unsurprising":(
[10:48] <RocketBoy> the gps must have recovered
[10:48] <RocketBoy> bb in a few mins
[10:49] <daveake_> Yes. Wasn't expecting that!
[10:50] <daveake_> Glad I only put £10 credit on the sim card!
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[10:56] <RocketBoy> daveake_: just heading out now - will email my radio logs later
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[10:59] <peteh> You must be nearly there?
[11:01] <daveake_> Yes, couple of miles I'm told
[11:01] <daveake_> Since I missed breakfast I could murder some fish & chips :)
[11:03] SamSilver (2985f435@gateway/web/freenode/ip.41.133.244.53) joined #highaltitude.
[11:05] <peteh> Stewart Smally Charter boat hire, Aldeburgh: 01728 454030
[11:05] <SpeedEvil> yarr.
[11:06] <SamSilver> SpeedEvil: when do you sleep if you sleep that is?
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[11:06] <SpeedEvil> Irregularly.
[11:07] <SpeedEvil> Today, from 4:30AM to 10:28 AM (when to paraphrase a blur song, I was rudely awakened by the postman)
[11:07] <SamSilver> sorry to hear that saw you here at 02h44 this morning
[11:08] <SamSilver> what is the latest whit dave and buzz1
[11:08] <SamSilver> with
[11:10] Nick change: SamSilver -> SamSilver_
[11:10] <SamSilver_> afk
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[11:28] <daveake_> Well, Aldeburgh is nice :)
[11:28] <daveake_> Not a peep from the Yagi; no more replies from the SMS tracker. Lost at sea :-(
[11:29] <daveake_> Anyway, it was a fun chase! We're heading on back now.
[11:29] <peteh> Small service on the quayside ... ?
[11:29] <peteh> Really sorry
[11:29] <fsphil> Davy Jones gets another payload
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[11:31] <daveake_> Since we don't know where it is, not much point getting a boat
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[11:31] <daveake_> I wonder how much extra helium it would have taken to land on land :)
[11:32] mikewintermute (~mikewinte@188-223-213-21.zone14.bethere.co.uk) joined #highaltitude.
[11:32] <fsphil> difficult to tell with these new balloons
[11:33] <fsphil> I would never have expected a 1000g balloon to float, esp. with quite a heavy payload
[11:33] <fsphil> and definitely not at 36km
[11:35] <SamSilver_> did buzz1 not have a cut down?
[11:35] <SamSilver_> or was it a tree / para cut down?
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[11:35] <fsphil> sorta glad my next flight is with a kaymont -- I know that'll burst at about 30km :)
[11:35] <fsphil> if even that
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[11:41] Nick change: SamSilver_ -> SamSilver
[11:42] <SamSilver> could I have a link for the tracker I have lost my fav list thanx
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[11:43] <fsphil> http://spacenear.us/
[11:44] <SamSilver> thank you fsphil
[11:45] <SamSilver> dave my man bugger
[11:45] <SamSilver> Buzz1 was my fav
[11:45] <SamSilver> loads of character
[11:45] <SamSilver> like you I suuppose
[11:46] <SamSilver> -u
[11:46] <SamSilver> wait that was not buzz was it?
[11:47] <SamSilver> In was away at agm for ham club and my laptop went blue screen so I missed the readback
[11:49] <SamSilver> In = I
[11:51] <fsphil> that was cloud2
[11:52] <fsphil> 36km, and that wasn't even his attempt at high altitude :)
[11:55] <SamSilver> not a kaymont then?
[11:56] <SamSilver> well glad to hear that buzz1 is safe at least
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[11:57] <daveake_> SamSilver ... no, not Buzz1. He'd have made landfall in Holland probably!
[11:58] <daveake_> This was my full-fat payload with 2 cameras and backup tracker. It went 4km more than I was aiming at.
[11:58] <SamSilver> 4 km up?
[11:58] <daveake_> Judging by the ascent rate I underfilled a bit compared to what I was trying for
[11:58] <SamSilver> 4km higher?
[11:58] <daveake_> Target was 32km; actual over 36km
[11:58] <daveake_> yes
[11:59] <daveake_> It was quite tricky to measure the neck lift and maybe I got that wrong
[11:59] <SpeedEvil> daveake: Ow. I though this was another light payload
[11:59] <SamSilver> must have had Darkside biting his nails
[11:59] <daveake_> Nope. 800g inc parachute and line
[11:59] <daveake_> lol
[12:00] <daveake_> No, 100g balloon (even a hwoyee) and 800g is never going to get near his record
[12:00] <daveake_> 1000g balloon
[12:00] <daveake_> typing as we drive
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[12:00] <daveake_> On the plus side, it didn't land in a tree :p
[12:00] <SamSilver> True but 36 + km was also not expected
[12:00] <daveake_> nope
[12:01] <SamSilver> so daveake_ you are saying the sign worked?
[12:01] <daveake_> Exactly lol
[12:01] <daveake_> I printed it and stuck on the side
[12:02] <SamSilver> http://www.sanslogic.co.uk/hab/notree.png
[12:02] <daveake_> No trees within 10km of where it landed!
[12:02] <SamSilver> aahhh I will use one on my flight
[12:02] <SamSilver> lol
[12:02] <daveake_> It worked very well D)
[12:02] <BrainDamage> tie one of those "power balance" scams to the parachute cord too, for good measure :p
[12:04] <SamSilver> the band around the wrist sh!t
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[12:10] <SamSilver> this laptop should display this pop up http://www.sanslogic.co.uk/images/warning-xp.png
[12:10] <SamSilver> piece of shite
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[12:17] <griffonbot> Received email: David Akerman "Re: [UKHAS] CLOUD2 Launch Saturday 17th September"
[12:18] <SamSilver> fsphil: I don't see any action in the nesting boxes when is next brood
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[12:30] <griffonbot> Received email: "Re: [UKHAS] CLOUD2 Launch Saturday 17th September"
[12:39] <fsphil> SamSilver, all done this year - they normally start visiting again in december. they've already paired up
[12:40] <SamSilver> ok I am in southern hemisphere
[12:41] <fsphil> aaah it should be busy there right now
[12:41] <fsphil> our swifts are heading your way right now
[12:42] <SamSilver> yes we got ground scraper thrush's are full of "spring"
[12:42] <SamSilver> jumping on the back
[12:42] <SamSilver> flapping wings and strutting around
[12:43] <SamSilver> the weavers are building like crazy and haning upside down making a racket
[12:43] <SamSilver> hangung
[12:43] <SamSilver> haning
[12:43] <SamSilver> hanging
[12:43] <SamSilver> shhuuu that was a hard word to spell
[12:44] <SamSilver> fast brain slow fingers
[12:44] <fsphil> got there in the end :)
[12:45] <fsphil> I don't think I'd recognise any of the birds there
[12:45] <SamSilver> lesser striped house martins??
[12:45] <SamSilver> lol my spelling has gone haywire!!
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[12:47] <fsphil> my spelling is pretty bad on the laptop :)
[12:47] <fsphil> only saved by xchat's spell checker
[12:47] <fsphil> right, heading out for lunch. bbl!
[12:47] <SamSilver> chow
[12:52] <jcoxon_> hehe tim has put his launch in the UK recrd
[12:52] <jcoxon_> record
[12:52] <daveake__> B:
[12:53] <jcoxon_> might have to take it out
[12:53] <daveake__> I see mine is there already ... thanks top wheover did that
[12:53] <daveake__> And while you're at it, do Aussie invader launches count? ;)
[12:54] <jcoxon_> yeah it was launched in the UK
[12:54] <daveake__> \I know :)
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[12:57] <daveake__> RocketBoy well, we went to Aldeburgh. Not a whistle with the yagi.
[12:57] <daveake__> Nice fish & chips though :)
[13:00] <RocketBoy> yeah - its known for its fish and chips
[13:00] <RocketBoy> any guess at how far out to sea it went
[13:00] <RocketBoy> ?
[13:01] <RocketBoy> I landed one of my payload mid channel - and still got it back a few weeks later
[13:01] <RocketBoy> washed up in southwold
[13:01] <RocketBoy> just up the coast from you
[13:03] <daveake__> I gave someone the GPS co-ords from an SMS message, and he said it waqs about 6 miles off the coast
[13:03] <daveake__> I'll check all my data when I'm home
[13:03] <daveake__> Bit tricky in a bouncing car!
[13:03] <RocketBoy> yeah
[13:04] <daveake__> I've called the SMS tracker often but no more replies
[13:04] <daveake__> It had 75% battery at last count so it's not that
[13:05] <daveake__> OK, just had a look at the SMS messages. Speed was approx 30mph so it must have been in the air at the time
[13:08] <daveake__> Unfortunately the tracker doesn't send altitude otherwise I could plot the likely "landing" point
[13:09] Nick change: daveake__ -> daveake
[13:12] <RocketBoy> I'll see what I can skull up from my radio logs - might take some time
[13:12] <RocketBoy> then you need some tide predictions
[13:12] <daveake> :p
[13:13] <daveake> No hurry. Any and all help very gratefully received
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[13:32] Nick change: SamSilver -> SamSilver_
[13:32] <SamSilver_> afk
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[13:40] <griffonbot> Received email: Steve Randall "Re: [UKHAS] CLOUD2 Launch Saturday 17th September"
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[13:43] <NigeyS> ping RocketBoy
[13:43] <RocketBoy> yo yo
[13:43] <NigeyS> hey Steve
[13:44] <NigeyS> going to do that water test tomorrow, got some thinner tubing
[13:44] <NigeyS> we going for a full balloon test or partial .. ?
[13:44] <RocketBoy> oh cool - that will be very interesting
[13:45] <RocketBoy> well i guess as close to full as you can get it
[13:45] <RocketBoy> (before it bursts)
[13:45] <NigeyS> ok, sounds good, ill make sure the cats around so he can get soaked when it bursts lol !
[13:46] <RocketBoy> some tube and a funnel I suppose
[13:46] <NigeyS> yups, i was going to hand fill it, but managed to get some thin tubing to attach to the hosepipe
[13:46] <RocketBoy> and some measured out water jugs
[13:47] <NigeyS> big bucket of water, measured, and fill ir via the tube from that
[13:47] <RocketBoy> I was thinking of trying to easure it on the way in rather than on the way out
[13:47] <NigeyS> ahh
[13:47] <NigeyS> ok, will do that
[13:47] <RocketBoy> cos I think it stands a good chance of bursting
[13:48] <RocketBoy> its gonna be about .1cu m
[13:48] <NigeyS> i reckon so, minimum, maybe 1.1 max
[13:48] <RocketBoy> so thats 100Kg of water
[13:48] <NigeyS> alot of water when u think about it !
[13:48] <RocketBoy> yeah
[13:49] <NigeyS> btw picochu-2 is almost ready
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[13:49] <RocketBoy> best to lay it down I guess
[13:49] <RocketBoy> humm - u guess even so you will have about 200mm head of water when full - even laying it down
[13:50] <NigeyS> good point
[13:50] <NigeyS> i'll video it to
[13:50] <NigeyS> not the bursting and getting wet bit though :p
[13:51] <RocketBoy> a 9' head of water is 0.3psi
[13:51] <RocketBoy> so it should just about take it
[13:52] <NigeyS> fingers crossed
[13:52] <RocketBoy> 9inch
[13:52] <RocketBoy> yeah - i'm up for watching the video
[13:53] <NigeyS> awsome :D it'll be interesting to say the least !
[13:54] <NigeyS> i was thinking for the next flight .. as im still around 80gms .. 25gm per balloon and hoping for the best ?
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[13:57] <RocketBoy> yeah 70% fill or less IMO
[13:57] <RocketBoy> its a very fine balance IMO
[13:57] <NigeyS> oh definately, very weird how james's burst so early on
[13:58] <NigeyS> never seen that before, unless it was a faulty balloon, weak seam or something..
[13:58] <RocketBoy> just a few gramms of free lift between float and burst
[13:58] <RocketBoy> i cant really explain that launch at all
[13:58] <NigeyS> bit of weird 1 eh
[13:58] <RocketBoy> need a video camera :-0
[13:59] <NigeyS> on the payload ?
[14:00] <RocketBoy> or a nearby aircraft following the flight :-)
[14:00] <NigeyS> i think a camera is possible..
[14:01] <NigeyS> keychain cam, very light, superglued to a cube of polystyrene, thats threaded through 1 of the balloon lines so its fixed pointing up, quality wont be great but itll be light and itll get images...
[14:01] <RocketBoy> oh I agree - prob at the expense of a few 10s of grams
[14:02] <RocketBoy> evan a still camera
[14:02] <RocketBoy> even even
[14:02] <NigeyS> true
[14:03] <NigeyS> hmm, im sure i can do it
[14:03] <NigeyS> im guessing itll add upto 20g
[14:04] <RocketBoy> I have some credit card cams somewhere - knaff resolution - but they might be ok
[14:04] <RocketBoy> I think they could strip down really light
[14:04] <NigeyS> oo might be ideal, even a blurry pic could give some real insight to whats going on ...
[14:06] <RocketBoy> yeah
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[14:44] <number10> just back, whats the news with cloud2?
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[14:53] <Lunar_Lander> hello
[14:54] <griffonbot> Received email: shnarg2 "[UKHAS] Re: Moving venue of conference"
[14:54] <Lunar_Lander> hi RocketBoy
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[14:55] <Lunar_Lander> RocketBoy : I asked Hwoyee about the 3000 and 4500 balloon yesterday, I'll let you know what they'll tell me
[14:57] <RocketBoy> reading back on my emails i have one that indicates they occasionally make 3000s - when they have a big enough order for them
[14:57] <RocketBoy> I'll probably ask for them to email me if ever they make some omre
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[14:58] <Lunar_Lander> yeah
[14:58] <Lunar_Lander> and do they accept Mastercard or so?
[14:58] <RocketBoy> if you want a Totex 3000 I have some
[14:58] <Lunar_Lander> yeah
[14:58] <RocketBoy> no just T/T
[14:59] <Lunar_Lander> I was just thinking about those 4500 because I read a Japanese paper about a cryosampler at their station in Antartica
[14:59] <Lunar_Lander> and they used a 4500 balloon to lift it
[14:59] <Lunar_Lander> and I was curious if they could be "custom" made
[14:59] <Lunar_Lander> T/T is Western Union or so?
[15:00] <RocketBoy> I think they are made from time to time to special order - I belive that totex make a 4000 occasionally
[15:00] <Lunar_Lander> cool
[15:00] <RocketBoy> Telegraphoc Transfer - bank to bank transfer
[15:00] <Lunar_Lander> ah
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[15:01] <RocketBoy> if you ask your bank they will be able to do it for you for a (not inconsiderable) fee
[15:02] <Lunar_Lander> yeah
[15:02] <Lunar_Lander> I think I know that
[15:02] <Lunar_Lander> I was told that it is next to impossible to get money to Sweden
[15:02] <Lunar_Lander> the fee for that can be as high as 40 euros
[15:03] <RocketBoy> thats about the same
[15:05] <Lunar_Lander> ah
[15:06] <Lunar_Lander> and today I bought a tube of Daler & Rowney acrylic paint
[15:06] <Lunar_Lander> Colour 653 - Flourescent Orange
[15:06] <Lunar_Lander> to paint my payload :)
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[15:12] <Lunar_Lander> RocketBoy : and we got a GO from building management to throw the parachute down from a campus building which is about seven floors above the ground
[15:13] <RocketBoy> that will be interesting - are you going to time it?
[15:14] <Lunar_Lander> yes
[15:14] <Lunar_Lander> and it will be filmed
[15:15] <Lunar_Lander> next, the payload will be placed on that building for a weekend for a duration test
[15:16] <Lunar_Lander> and I asked a hot-air balloon pilot if he could take the payload along on a flight
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[15:21] <RocketBoy> all good stuff
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[15:22] <Lunar_Lander> yea
[15:22] <Lunar_Lander> thanks :)
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[15:25] <daveake> Knackered
[15:26] <RocketBoy> back ome?
[15:26] <daveake> Yes
[15:26] <daveake> Thanks for the email :)
[15:27] <RocketBoy> no probs - I enjoy going through radio logs for some reason
[15:27] <daveake> Not much sleep last night, and a busy work week anyway, so I think I'll sleep well and quite soon!
[15:28] <daveake> I'll compare with the SMS positions that I got.
[15:28] <daveake> Didn't get any of those after landing
[15:29] <daveake> Pretty blowy at the sea. I had speeds of 30+mph from the SMS tracker
[15:29] <RocketBoy> yeah a blowy day all round
[15:30] <daveake> Tracking was quite fun. The 3G in my laptop worked great so I was online almost all the time
[15:30] <daveake> Shame about the map (hangs head in shame)
[15:30] <RocketBoy> I'm surprised I didn't copy it lower - but I guess the antenna was off
[15:30] <daveake> Looks like it.
[15:31] <RocketBoy> what 3G do you use?
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[15:32] <daveake> It's a Dell which I bought an internal 3G adapter for. It's not locked so I can use any SIM. Usually use a T-Mobile one which is £1 for a day's internet access
[15:33] <Lunar_Lander> did you rtfly ?
[15:33] <Lunar_Lander> fly
[15:33] <daveake> Did I what now?
[15:33] <daveake> Oh
[15:33] <daveake> Not personally, no :)
[15:33] <Lunar_Lander> xD
[15:34] <Lunar_Lander> oh
[15:34] <Lunar_Lander> GPS problem returned?
[15:35] <daveake> shhhh
[15:35] <Lunar_Lander> YAY 36.35 km!
[15:35] <Lunar_Lander> XD
[15:35] <daveake> :D
[15:35] <Lunar_Lander> *.25
[15:35] <daveake> Just about beat the previous #4
[15:35] <Lunar_Lander> we are getting exceptionally high recently
[15:35] <Lunar_Lander> yeah
[15:35] <Lunar_Lander> we can do it
[15:35] <daveake> Not deliberately !
[15:35] <daveake> Well not for this one
[15:36] <Lunar_Lander> if Darkside succeeds, we will smash PBH
[15:36] <Lunar_Lander> :D
[15:36] <Lunar_Lander> next barrier then is 50 km
[15:36] <Lunar_Lander> and 53 is the unmanned world record
[15:36] <Lunar_Lander> :)
[15:37] <daveake> Yeah, good lukc with those :D
[15:37] <Lunar_Lander> xD
[15:37] <daveake> But at this rate I can see 41km being reached soon
[15:37] <Lunar_Lander> yeah
[15:42] <Upu> well I asked inventek if they could remove the 42k limit on their GPS chip and they said yes
[15:43] <daveake> :)
[15:43] <Lunar_Lander> yay
[15:43] <Lunar_Lander> "anyway, hope you find it .. its not over till the fat lady sings so they say.."
[15:43] <Lunar_Lander> what does he mean by that?
[15:44] <daveake> Opera reference. He's suggesting it might get washed up sometime.
[15:45] <daveake> Mentally I've written it off, as it's very unlikely I'll get it back, though not impossible.
[15:46] <daveake> Most expensive bag of fish & chips I've ever had :p
[15:53] <Lunar_Lander> ah
[15:53] <Lunar_Lander> xD
[15:56] <fsphil-m> payloads occasionally get washed up in Norway and found
[15:57] <daveake> yeah, might happen :)
[15:57] <Lunar_Lander> yeah
[15:58] <Lunar_Lander> that is the dynamics of the Atlantic :)
[15:58] <number10> sorry to see it went in the sea daveake
[15:58] <fsphil-m> PBH is well within reach .. wonder what they'll do if that is beaten
[15:58] <fsphil-m> out-spend us?
[15:59] <daveake> It's OK, there's always that chance. It didn't land in a tree :)
[15:59] <Lunar_Lander> they'll be angry and ask Lockheed for more funding
[15:59] <Lunar_Lander> xD
[15:59] <fsphil-m> take every victory you can :)
[15:59] <daveake> lol
[15:59] <fsphil-m> I'm the same with hadie:2
[15:59] <number10> I was out in the car but also left PC at home tracking - both lost contact at packet 1360
[15:59] <fsphil-m> it crossed the irish-sea successfully :)
[15:59] <fsphil-m> the first to do so
[15:59] <daveake> :)
[16:00] <fsphil-m> the light weight payload probably will too
[16:00] <daveake> It was an interesting chase. We were having trouble keeping up! Then when it got high it slowed to a crawl.
[16:00] <fsphil-m> I'm hoping it heads towards cambridge -- will be far easier to track
[16:00] <number10> just reading back throgh IRC looks like your GMS pos and steve last position are roughly the same
[16:01] <fsphil-m> hmm
[16:01] <daveake> Thanks. I've not looked yet. Too tired
[16:01] <number10> long drive and early morning
[16:02] Action: fsphil-m is still yawning.. and I didn't do anything
[16:02] <daveake> Indeed
[16:02] <daveake> lol
[16:04] <fsphil-m> I wonder if clouds would attenuate the signal at all
[16:05] <fsphil-m> it was weaker than I'd have expected
[16:05] <daveake> IIRC Steve's last position was at about 500m altitude. It was doing about 45kph horizontally, so assuming 5m/s descent I make that another 1250m to travel. So it would have landed about 10.6km from the coast
[16:06] <daveake> Same NTX2 as last time fsphil-m. Antenna was a shagi but with solid wires soldered on
[16:06] <daveake> Last time I used my own design without coax
[16:07] <daveake> But I'm inclined to believe it was weather related
[16:07] <daveake> We had a good strong signal for a good deal of the chase
[16:07] <fsphil-m> yea - I'm going to have to start making a note of weather each time
[16:08] <fsphil-m> some very big clouds about today
[16:10] <fsphil-m> I can't find any references on the net about how much cloud attenuates the signal
[16:11] <number10> davake - I think this was last pos of your GSM and Steves http://www.flickr.com/photos/65839734@N04/6155539617/in/photostream
[16:12] <daveake> Yep
[16:13] <fsphil-m> I wonder what broke on the antenna -- bit of a worry, the idea with the shagi is that nothing should break
[16:13] <fsphil-m> how was it connected to the board?
[16:14] <daveake> My mistake, I think, was to solder solid wire to the core.
[16:14] <daveake> Inside the box it the coax looped round a couple of times then soldered to the NTX2
[16:15] <fsphil-m> I wonder if it was that that broke
[16:15] <daveake> I would think so
[16:15] <fsphil-m> on hadie:2 the antenna broke, but the signal was still decodable up to about 40km distance
[16:15] <daveake> Mrs Dave kept bending it when she was looking after the box. So I'm blaming her :D
[16:15] <fsphil-m> at 300 baud
[16:15] <daveake> I *nearly* but some extra foam poly on the bottom to stop the wire waving around
[16:15] <daveake> wow
[16:15] <fsphil-m> lol
[16:16] <fsphil-m> you can't do that :)
[16:16] <daveake> :)
[16:16] <number10> poor Mrs Dave
[16:16] <daveake> I don't. My payload my fault.
[16:16] <fsphil-m> what was the gsm backup?
[16:16] <fsphil-m> it seemed to mostly work well
[16:17] <daveake> I got 3 positions from it on the way down
[16:17] <daveake> The last position is close to RocketBoy's last position which I think was at 500m alt.
[16:17] <fsphil-m> yea, it won't drift too far from that height
[16:17] <number10> I was wondering if it is worth dismantling the GPS tracker and only ppower on when >5km
[16:18] <daveake> I've been calling it during the afternoon but nothing at all since it hit the water
[16:18] <daveake> Yes, I thought about that
[16:18] <fsphil-m> it's pretty far out, there'll be no coverage
[16:18] <fsphil-m> it's probably still floating though
[16:18] <daveake> But the nice thing is it's independent so whatever happens to the main processor the tracker isn't affected
[16:19] <number10> I think I have the same one as you - has a redish-brown strip on top
[16:19] <daveake> yep
[16:20] <fsphil-m> ebay?
[16:20] <daveake> Amazon
[16:20] <number10> yes -ebay - TK102 says inside manual
[16:20] <fsphil-m> £50?
[16:20] <daveake> yes
[16:20] <fsphil-m> how heavy are they?
[16:21] <daveake> 60g
[16:21] <fsphil-m> that's actually a bit cheaper than a stand-alone gsm module
[16:21] <number10> I got my one for 30+10 P+P
[16:22] <daveake> :)
[16:22] <fsphil-m> nice
[16:22] <number10> thats a 10er saved when I loose my one - when I eventually get to doing it
[16:22] <fsphil-m> I think I'll use one on the next flight
[16:22] <fsphil-m> I really want that camera back :)
[16:22] <daveake> So did I lol
[16:23] <fsphil-m> oops
[16:23] <number10> what made you nnot decide to use cutdown daveake
[16:23] <daveake> Worried it would hit early
[16:24] <daveake> It did time out - that's what the "Flight Mode 8" was in the RTTY
[16:24] <daveake> So I got the #4 height at the expense of losing the payload.
[16:24] <fsphil-m> another victory :)
[16:25] <daveake> :)
[16:26] <daveake> OK, I need to get some sleep. Later guys. Thanks for the help and support today :)
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[16:28] <fsphil-m> so many dodgy looking sellers on ebay :)
[16:28] <Lunar_Lander> xD
[16:28] <Lunar_Lander> you mean those with "Place of article: Hong Kong"?
[16:29] <fsphil-m> or, Item location: Hong Kong, United Kingdom
[16:30] <number10> I went for one based UK - but have not bought much on ebay - I wonder what happens if goods dont show - with paypal
[16:30] <fsphil-m> you get half back, sometimes
[16:31] <fsphil-m> at least the one time I never received bits
[16:33] <number10> mmm - I suppose the feedback score should be an idea how reliable - but I wonder if theres a way of scamming this
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[16:45] <griffonbot> @steamfire: Excited to head down to the @LVL1HackerSpace later and organize the @LVL1WhiteStar stuff, and work on my #UKHAS presentation! [http://twitter.com/steamfire/status/115104054690070528]
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[17:28] <SpeedEvil> Feedback score is generally reliable. The only way of scamming it is to convince buyers not to leave negs.
[17:28] <SpeedEvil> And the ways of dong that are limited now that sellers can't neg buyers
[17:29] <SpeedEvil> One issue is that if someoe has been selling a thousand cell-phone charms, that doesn't mean that the thousand and oneth item - a plasma TV - is going to be legit
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[17:41] <number10> thanks SpeedEvil
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[17:56] <fsphil-m> the seller I was looking at for the tracker had something like 98.8% positive
[17:56] <fsphil-m> but they sell so much, that's like 100 negative reviews in the last month alone
[17:56] <daveake> wow
[17:56] <daveake> That's a lot
[17:56] <fsphil-m> still a small percentage, but I'd be wary
[17:57] <daveake> I like to see how they deal with the -ve comments.
[17:57] <daveake> Gives an insight how they deal with issue
[17:57] <daveake> s
[18:01] <fsphil-m> most have no followup
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[18:04] <Demon> Hello all
[18:05] <fsphil> bicyclist -- is that even a word? (just heard on TV)
[18:05] <fsphil> hiya Demon
[18:05] <Demon> In french, sure would be
[18:06] <Demon> Well, take of bi first
[18:06] <Demon> *off
[18:07] <Demon> I possess one and only one question :
[18:07] <fsphil> 42!
[18:08] <Demon> :o
[18:08] <Demon> But seriously
[18:08] <Demon> In LOS (In balloon) What is the theory range of a 5W APRS ?
[18:08] <mattltm> Im looking for vlounteers to help me test a script I have written. Just email any image to images@mattltm.co.uk to help me test. All images will be deleted tonight when I have finished testing unless they contain nudie bits ;)
[18:08] <jonsowman> Demon: more information required
[18:09] <jonsowman> mattltm: any particular format?
[18:09] <Demon> Omni on both sides
[18:09] <jonsowman> hundreds of km
[18:10] <fsphil> did you get the ones I emailed earlier mattltm?
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[18:10] <Demon> I guess then for .5W its roughly the same then
[18:10] <fsphil> Demon, some satellites use 5 watts
[18:11] <jonsowman> Demon: it's unlikely to pose you a problem on a HAB
[18:11] <jonsowman> also you can use igates and the APRS network to relay packets around
[18:11] <Demon> They are 60km from eachother
[18:12] <mattltm> any format, any size ta :)
[18:12] <mattltm> fsphil: no :(
[18:12] <fsphil> hmm
[18:12] <jonsowman> bbl
[18:12] <fsphil> I'll resend that
[18:12] <Demon> I'll go for .5W then. 5W will dry the battery up in half an hour
[18:13] <fsphil> resend -- it's about 800kb
[18:13] <fsphil> Demon, are you able to test? if you can find a good peak or mountain it can be a good way to test range at different powers
[18:14] <fsphil> I've a spot 10km away I use for that
[18:14] <Demon> Ski mountains for the go
[18:14] <Demon> 400m HAAT
[18:14] <fsphil> good height
[18:14] <Demon> All the digipeaters are that altitude
[18:14] <Demon> height
[18:14] <Demon> Pretty handy
[18:15] <Demon> Since Montreal is surrounded by them
[18:15] <fsphil> for testing you'd need the opposite then .. try 0.5w aprs from an antenna close the ground
[18:15] <fsphil> in the sort of terrain you'd expect to land in
[18:17] <Demon> Good idea
[18:17] <Demon> If I have to deal with the latest 30-60 sec received data, it'll be tricky
[18:17] <Demon> Since APRS has slow update rates
[18:18] <fsphil> I've found it pretty good -- it's possibly the repeating part that's slow
[18:18] <fsphil> the igate I setup here had packets onto aprs.fi within a second of receiving them
[18:19] <Demon> Well, digipeaters repeat slowly
[18:19] <Demon> Or else, traffic would overwhelm the system
[18:22] <Demon> I wonder wether an handheld transceiver's microphone can easily be modded for direct aprs feed.
[18:22] <fsphil> for transmitting?
[18:23] <fsphil> most handhelds will have a port for an external mic -- including a way to start transmitting
[18:23] <mattltm> I am disapoint with the lack of "creative" images landing in my inbox :(
[18:23] <fsphil> I sent a squirrel :p
[18:24] <mattltm> Yup, got that one :)
[18:24] <Demon> I just realised I own an handheld aircraft radio (out of reach for now). Can it be tuned in to aprs ?
[18:27] <Demon> (Yes, I spit out questions day-long) What happens when a 18km gps reaches its altitude limit ? Will it keep lock and send back coordinates when it'll be back under 18km ?
[18:27] <SpeedEvil> Maybe
[18:27] <SpeedEvil> Or it might need power cycling
[18:27] <SpeedEvil> Depends on the model
[18:27] <Demon> Wich would result in a failure
[18:28] <Demon> Good
[18:28] <Demon> What about an Sirf II ?
[18:30] <mattltm> Thanks for the pics guys :0
[18:31] <Upu> I can give you an exact answer for the SiRFIII HA ISM Build :
[18:31] <Demon> By power cycling, If I understood you mean cutting the voltage ?
[18:31] <SpeedEvil> yes
[18:31] <Upu> 2/ What happens when the altitude limit is exceeded, does the altitude read out just stick at 42000m or does it reset to zero ?
[18:31] <SpeedEvil> No idea about SIRF
[18:31] <Upu> from the makers :
[18:31] <Upu> I am not sure exactly& But it will re-acquire once back in range
[18:31] <Upu> yay for accuracy
[18:32] <Upu> 3/ Do you plan to offer a high altitude version of the ISM480F1-C4 ? This would be of extreme interest due to the low cost/high performance.
[18:32] <Upu> "Not yet& that is a good idea and we are waiting for the new firmware to make modifications to it. Soon!!"
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[18:32] <Demon> Mhm..
[18:33] <Demon> So Sirf would be kind to make it not need power cycling. I'll need to make more research
[18:33] <Demon> Need to be 100% sure
[18:34] <Upu> I wouldn't use it
[18:34] <Upu> I'd use one of the GPS units that we know work
[18:34] <Upu> Generally SiRFIII chipsets don't (with the exception of the Inventek ISM 300)
[18:34] <Upu> http://ukhas.org.uk/guides:gps_modules
[18:35] <Upu> Also visit http://www.arhab.org/
[18:35] <Upu> Click "the science" then GPS Pass > 60k and GPS Fail < 60k
[18:35] <BrainDamage> aw, too bad for the SIRF, dx actually sells those
[18:39] <Upu> Deal Extreme ?
[18:40] <BrainDamage> yes
[18:40] <Upu> best online tat vendor out there :)
[18:41] <BrainDamage> sorry, not a native english speaker, what does tat vendor mean?
[18:41] <Upu> cheap crap shop :)
[18:42] <BrainDamage> oh yeah, you get what you pay for, but in my experience, if you can develop a critic eye, you can actually find some "cheap but good enough" deals
[18:42] <Upu> I buy lots of torches from there
[18:43] <BrainDamage> I bought one, and lasted me like 3 years, until this summer
[18:43] <BrainDamage> I tried adding rubber o-rings to seal and took snorkeling
[18:43] <BrainDamage> it ended like the shuttle :/
[18:46] <SpeedEvil> http://www.dealextreme.com/p/144w-rgb-control-box-for-5050-smd-led-strip-dc-12v-94207
[18:46] <SpeedEvil> so much randomness
[18:46] <SpeedEvil> http://www.dealextreme.com/p/36w-150-x-5050-smd-led-rgb-light-flexible-strip-5m-length-dc-12v-93398
[18:48] <Demon> It might fail at 60k feet, but will it reacquire when going back down ?
[18:48] <Demon> That's the question
[18:50] <BrainDamage> according to note8 for SIRF star III:
[18:50] <BrainDamage> Byonics GPS2 cut out when the payload ascended beyond 78,838', and resumed after burst when it descended below the same level one hour later. Rick LASA
[18:50] <BrainDamage> it depends on the actual chipset ofc
[18:54] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Re: Moving venue of conference"
[18:55] <Demon> But still, can't know for Sirf II
[18:55] <Demon> Only way to know is to test
[18:57] <Demon> But I ain't able to
[18:58] <BrainDamage> We now have solid evidence that GPS receivers based on SiRF-I and SiRF-II chip sets all fail at ~60kft. Some SiRF-III chips sets, receivers that use them and firmware work at high altitude ýbut- others do not.
[18:58] <BrainDamage> it claims they'll fail, no idea for resume
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[19:06] <number10> Upu, how's the wife - are you going to get to the lakes tomorrow?
[19:07] <Upu> yeah she should be fine
[19:07] <Upu> she's sat on the laptop planning some walks
[19:07] <number10> great
[19:08] <Upu> we'll get there
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[19:08] <number10> weather not looking brilliant but thats the NW
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[19:12] <number10> take a stroll down the borodale valley - Allerdale ramble shouldnt be too bad
[19:12] <Upu> yeah we might go wander round the base of Great Gable
[19:13] <Upu> been up it enough times now never been round the bottom
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[19:15] <RocketBoy> time to break out the FT817 and portable antenna
[19:15] <number10> hope you have a good trip Upu
[19:15] Nick change: MoALTz_ -> MoALTz
[19:15] <Upu> thanks number10 !
[19:15] <Upu> Going payload hunting RocketBoy ?
[19:16] <RocketBoy> sorry - i ment you
[19:16] <RocketBoy> on your walk
[19:16] <Upu> oh me yes
[19:16] <Upu> its coming along
[19:16] <RocketBoy> :-)
[19:16] <Upu> local repeater in the memory
[19:16] <number10> Upu is going to leave some pink gaffa for me to detect
[19:16] <RocketBoy> always a good backup
[19:17] <griffonbot> Received email: Mike Willis "Re: [UKHAS] CLOUD2 Launch Saturday 17th September"
[19:17] <RocketBoy> ah geocache
[19:17] <Upu> where are you going walking number10 ? :)
[19:17] <number10> bus shelter in grange would be fine ;)
[19:17] <Upu> haha
[19:18] <number10> planned to go causey pike and see how my wifes knee hold up
[19:18] <Upu> when are you there ?
[19:19] <number10> we are at Bettermere on wednesday for three days maybe do haystacks, then fom saturday up at keswick
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[19:20] <number10> have to plan carefully as not sure how my wifes knee is going to cope
[19:20] <Upu> Go for a cuppa in Grange
[19:20] <Upu> nice cafe
[19:20] <number10> so may end up doing a few low level walks
[19:20] <Upu> yeah
[19:20] <number10> yes is nice cafe we were there in June
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[19:25] <Upu> one day I'll leave the wife at home go to the top of Scar Fel with a proper antenna and a battery and see how far I can get QRP
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[19:48] <fsphil> mmmm qrp
[19:50] <fsphil> I've not played with HF in ages
[19:58] <mattltm> fsphil: nor me :(
[20:03] <fsphil-m> I'm tempted to tonight, though I'm stuck babysitting for the next hour
[20:04] <fsphil-m> might do when I get back, want to stay up for the Horus launch if it's still happening
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[20:35] <Demon> How do you configure the call sign in an handheld transceiver ?
[20:37] <juxta> Demon, do you mean a hand held voice radio?
[20:37] <Demon> Yup
[20:37] <Demon> 2m band
[20:37] <Demon> They spawn up on aprs.fi, so I am wondering
[20:37] <juxta> if you can do so it's probably in a menu somewhere, but usually you just use your voice to identify yourself
[20:38] <juxta> ah - right, there are some models that can do APRS
[20:38] <Demon> But what if it can't, but I can still tune in to it's frequency ?
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[20:39] <juxta> the APRS frequency?
[20:39] <Demon> Yes
[20:39] <juxta> sure
[20:39] <juxta> you'll just hear digital noise
[20:39] <Demon> So it will be an anonymous transceiver ?
[20:39] <Demon> It'll have no call sign when emitting aprs data ?
[20:40] <juxta> uh
[20:40] <juxta> no - it won't broadcast aprs data unless you feed it with something that generates it
[20:40] <Demon> Yes, the foxtrack
[20:41] <juxta> right - in that case you configure your callsign in the foxtrack
[20:41] <Demon> Or tinytrack3, same
[20:41] <Demon> Ah, I see
[20:41] <juxta> yeah
[20:41] <Demon> Thanks
[20:41] <juxta> the radio just puts the aprs out over the air, it doesnt know if it's voice/aprs/whatever
[20:42] <Demon> Only concern is that I dont think there is an audio port - just integrated microphone
[20:43] <Demon> I will have to mod it
[20:43] <juxta> you might have to hack into it then :)
[20:44] <juxta> what sort of radio is it Demon?
[20:44] <Demon> dj-175t
[20:45] <juxta> hmm, doesnt have a mic/speaker port?
[20:45] <juxta> ie for a headset
[20:49] <Demon> It's not specified
[20:49] <Demon> What bugs me too is that there's only 700mah in the battery
[20:49] <Demon> Wonder if there are only two endpins on the battery
[20:50] <Demon> And no different voltages based on the different cells
[20:50] <Demon> Like in a laptop battery
[20:54] <Demon> ?
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[21:03] <Demon> La classe
[21:03] <Demon> La France lance-t-elle des ballons sondes également ?
[21:04] <fsphil-laptop> uh, ou est la banc?
[21:04] <jonsowman> c'est la bas
[21:05] <Demon> lol, I might say
[21:05] <Demon> Good try, tough
[21:07] <Demon> Anyway, it seems not
[21:07] <Demon> Or is it for the fact this is a british chatroom
[21:08] <fsphil-laptop> I forgot most of the french I learned sadly
[21:08] <Demon> You were close to it, if we forget accents, "banc" is masculine
[21:09] <fsphil-laptop> I was always bad at remembering the gender of words
[21:10] <Demon> It's a PITA that's of a questionnable use
[21:12] <Demon> Why would a bench be of a particular sex ?
[21:13] <fsphil-laptop> it is odd
[21:23] Lunar_Lander (~Miranda@p54A0688D.dip.t-dialin.net) joined #highaltitude.
[21:23] <Lunar_Lander> hello
[21:23] <Demon> Hi, Lunar_Lander
[21:23] <Demon> There, I'm in red, Lunar_Lander
[21:24] <Demon> That's so cool, Lunar_Lander
[21:24] <Lunar_Lander> cool
[21:24] <Lunar_Lander> Miranda prints all in black
[21:24] <Lunar_Lander> :)
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[21:28] <Darkside> hmm
[21:29] <Darkside> i wonder if griffonbot is working
[21:30] <Lunar_Lander> hi Darkside
[21:30] <Lunar_Lander> we discussed that you will do it
[21:30] <Lunar_Lander> you will get the first place in the ARHAB world record list
[21:30] <Lunar_Lander> xD
[21:30] <Darkside> pff
[21:30] <Darkside> i dunno
[21:31] <Darkside> our payload is heavier than expected
[21:31] <Lunar_Lander> oh ok
[21:31] <Darkside> hmm what are griffonbots tags again...
[21:32] <RocketBoy> `zzzzzzzzzzzzzxzc v b v v v n b m n ,m..,/.÷.aaaaaaaaaaaassssssssssssdddddddddddddfcgggggggggggggggggggggghhhhhhhhhhhgjhnmjhkkkkkklll;;;;''''\\\\
[21:32] <RocketBoy> oops - cleaning keyboard
[21:34] <Darkside> RocketBoy: is that you on the tracker?
[21:34] <Darkside> XABEN?
[21:34] <nosebleedKT> Hi all
[21:34] <RocketBoy> Darkside: yep
[21:35] <Darkside> RocketBoy: we're launching in 2 hours
[21:35] <Darkside> is that a sim or a real launch/
[21:35] <RocketBoy> sim
[21:35] <Darkside> ok
[21:35] <Darkside> i just wanted to clear off the tracker ready for the launch
[21:35] <RocketBoy> i'tll be done in about 1hr
[21:36] <Darkside> okay
[21:36] <RocketBoy> ok tis offline now
[21:37] <RocketBoy> unless my dl-fldigi crashes (again) and it comes up again online your'll be clear
[21:37] <Darkside> okies, thanks
[21:37] <Lunar_Lander> hi nosebleedKT
[21:40] <RocketBoy> Darkside: what balloon will you be using?
[21:40] <Upu> don't forget to advise Arhab you're launching Darkside :)
[21:41] <Darkside> Upu: aha
[21:41] <Lunar_Lander> yeah
[21:41] <Darkside> RocketBoy: 2kg hwoyee
[21:41] <Upu> pico payload and slow ascent ?
[21:41] <RocketBoy> oooer
[21:42] <RocketBoy> you know what happened when I launched a 200g payload on a H2000
[21:43] <Demon> I am curious
[21:43] <Darkside> ok, notified
[21:43] <Darkside> with 2 hours notice
[21:43] <Upu> so small payload and slow ascent ?
[21:43] <Darkside> Upu: 134g payload
[21:44] <Darkside> targeting 3m/s ascent
[21:44] <Upu> notify them again just be sure they go it
[21:44] <Upu> got it
[21:44] <Darkside> lol
[21:44] <Darkside> nahh...
[21:44] <Lunar_Lander> RocketBoy : what did happen?
[21:44] <RocketBoy> XABEN13
[21:44] <Demon> A 200g payload on an 2kg balloon ?
[21:44] <Lunar_Lander> oh
[21:45] <RocketBoy> float
[21:45] <Lunar_Lander> yeah
[21:45] <Lunar_Lander> and superpressure mode
[21:45] <RocketBoy> for about 3 hours
[21:45] <Lunar_Lander> yeah
[21:45] <Lunar_Lander> Darkside : you need an auto cutdown
[21:46] <Darkside> heh
[21:46] <Darkside> no we don't
[21:46] <Darkside> we have quite a bit of leeway with floating
[21:47] <RocketBoy> XABEN13 was a 3.7m/sec average ascent rate
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[21:47] <Lunar_Lander> yea
[21:48] <RocketBoy> 36013m
[21:48] <Darkside> what ascent rate?
[21:48] <Lunar_Lander> that was second place, right?
[21:48] <Upu> I'll be in bed but will check tommorrow to see what you get
[21:48] <RocketBoy> just vsaid
[21:48] <Lunar_Lander> just the day after someone else's launch
[21:48] <RocketBoy> said 3.7
[21:48] <Darkside> oh ok
[21:48] <Darkside> interesting
[21:49] <Lunar_Lander> who did fly the day before you RocketBoy?
[21:49] <Darkside> well, we'll see how it goes i guess
[21:49] <Lunar_Lander> it was the first launch of that person and he made 2nd place in the record list
[21:49] <Upu> good luck
[21:49] <Darkside> Lunar_Lander: lol
[21:49] <RocketBoy> HABE1
[21:49] <Lunar_Lander> yea
[21:50] <Demon> It will be launched in america ?
[21:50] <Lunar_Lander> he hasn't been here long time
[21:50] <Lunar_Lander> Australia
[21:50] <Darkside> Australia MAte
[21:50] <RocketBoy> yeah i'tll be real interestinf to see if this float stuff is reapeatable
[21:50] <Darkside> hmm
[21:50] <Darkside> we might target a 2.5m/s ascent rate
[21:51] <RocketBoy> go for it
[21:51] <Demon> What'll be the drift ?
[21:51] <Darkside> we can measure the neck lift quite accurately
[21:51] <Darkside> Demon: http://projecthorus.org/predict/#!/uuid=ab9acc31e5cee1ea8fc1d3f946adb817e06853e9
[21:52] <Demon> 41K meters ?
[21:52] <Demon> That sure is impressive
[21:52] <Darkside> burst calculator says 40.4km
[21:52] <Upu> bust 42k and I can go back to Inventek and said "I told you so"
[21:52] <Demon> With 24k, I can manage to drift 40 km
[21:52] <Darkside> Demon: drift will al depend on wind conditions
[21:53] <Darkside> as you can see, ours will be doing about 140m
[21:53] <Darkside> 140km*
[21:53] <Upu> asked them to remove the 42k limit on the GPS as I believe we are going to exceed it before the end of the year
[21:53] <Demon> Why would it spin round at the end ? Is there an explanation ?
[21:53] <Darkside> Upu: heh
[21:53] <Darkside> Demon: differnet wind directions at different altitudes
[21:53] <Upu> they've already said yes based on Horus 15.5
[21:53] <Darkside> Upu: haha cool
[21:53] <Darkside> i think the uBlox's work up to 50km
[21:54] <Demon> Nobody with experience on Sirf II ?
[21:54] <Demon> Wether power cycling is required
[21:55] <Darkside> SIRFs suck
[21:55] <Demon> I agree
[21:55] <Darkside> the'l ldrop out at 18km or something
[21:55] <Demon> That also I know
[21:56] <Demon> But we aren't required to testify the max altitude it went
[21:56] <Darkside> helps tho
[21:56] <Darkside> use a uBlox instead
[21:56] <Demon> Price ?
[21:56] <Darkside> depends
[21:56] <Demon> I'll go with the one supplied with the Tinytrack3, I think
[21:56] <Demon> Reccomended ?
[21:56] <Darkside> nope
[21:56] <Darkside> SIRF3 i think
[21:57] <Darkside> get something, anything with a uBlox module
[21:57] <Upu> Darkside the Inventek I use is SiRF III but firmware amended to run to 42k
[21:57] <Demon> As long as they drop back in I dont care
[21:57] <Demon> Without power cycling, but nobody seems to know
[21:58] <Upu> but they have a new one out which looks great, ideal for pico launches 19g including antenna
[22:00] <Demon> Our new GPS receiver intended for high altitude ballooning. Works at altitudes up to 84KM.
[22:00] <Demon> From TinyTrack
[22:00] <Darkside> interesting
[22:00] <Darkside> i bet its a uBlox module
[22:00] <Lunar_Lander> RocketBoy : you said for measuring battery voltage, I need a voltage divider, right?
[22:01] <Demon> Is it fair for 79 $ ?
[22:02] <RocketBoy> Lunar_Lander: thats one solution - and a voltage reference on the ADC
[22:02] <Lunar_Lander> yea
[22:03] <Darkside> ok heading out, cyas later
[22:03] <Lunar_Lander> something like that? http://www.dfrobot.com/index.php?route=product/product&filter_name=divider&product_id=90
[22:03] <Darkside> we need griffonbot running...
[22:03] <Lunar_Lander> cu Darkside
[22:03] <Darkside> oh well
[22:03] <Darkside> follow my twitter feed, account is @darksidelemm
[22:03] <jonsowman> hang on Darkside
[22:03] <Darkside> mm
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[22:04] <Darkside> what tags does it follow
[22:04] Action: griffonbot is tracking emails sent to ukhas@googlegroups.com
[22:04] <Lunar_Lander> RocketBoy : does the link work?
[22:04] <Lunar_Lander> hello jonsowman
[22:04] <Darkside> can you add #projecthorus ?
[22:04] <jonsowman> Darkside: sure, two secs
[22:04] <jonsowman> hi Lunar_Lander
[22:04] <Darkside> cool
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[22:04] <Darkside> i need to head off
[22:04] <Darkside> i'll test it on the way in
[22:04] <Upu> good luck
[22:04] <Darkside> bbl
[22:04] <Upu> annoy some Yanks :)
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[22:05] <jonsowman> sorry
[22:06] <RocketBoy> ha ha http://www.dfrobot.com/index.php?route=product/product&filter_name=divider&product_id=90 - I cant believe anyone would buy that - make you own with 2 resistors on some vero
[22:06] <Lunar_Lander> xD yeah
[22:06] <Lunar_Lander> thus I laughed :D
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[22:06] <jonsowman> there you go Darkside
[22:07] <Lunar_Lander> but you know RocketBoy, I needed an USBtinyISP from Adafruit
[22:07] <Lunar_Lander> and I found a dutch shop offering it for 16.60 euro
[22:07] <Lunar_Lander> I thought, OK get it there
[22:07] <Lunar_Lander> but they added a 10 euro fee for small orders
[22:07] <Lunar_Lander> and 18 euros TNT shipping
[22:07] <Lunar_Lander> the total was 48 euros
[22:07] <Lunar_Lander> didn't order
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[22:08] <Matt_soton> ebay?
[22:09] <Lunar_Lander> oh
[22:09] <Lunar_Lander> I didn't check there
[22:09] <Lunar_Lander> I then went to lipoly.de and ordered a USBtinyISP by DFrobot
[22:09] <Matt_soton> i even found a fpga programmer which is usually stupid money on ebay for about £10
[22:10] <Lunar_Lander> and during that I found the voltage divider I linked to above
[22:10] <Lunar_Lander> cool
[22:10] <Matt_soton> but will take forever to get to you
[22:10] <Lunar_Lander> http://www.dfrobot.com/index.php?route=product/product&filter_name=USBtinyISP&product_id=405
[22:10] <Lunar_Lander> yea
[22:10] <Lunar_Lander> optically it looks the same like the Adafruit one
[22:10] <Matt_soton> well $14 is stilll a good price
[22:11] <Lunar_Lander> yeah
[22:11] <Lunar_Lander> http://www.ebay.de/itm/USBtinyISP-AVR-ISP-programmer-for-Arduino-bootloader-/280631157783?pt=Wissenschaftliche_Ger%C3%A4te&hash=item4156eba417
[22:11] <Matt_soton> they all run the same software those programmers anyway
[22:11] <Lunar_Lander> yea
[22:13] <nosebleedKT> I go to sleep, have all digital dreams
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[22:14] <Lunar_Lander> and lipoly.de sells all that sparkfun has too
[22:14] <Lunar_Lander> so it's a good retailer
[22:14] <Demon> To fix the Sirf II problem, there might be a very simple solution
[22:15] <Demon> Simply power on and off the GPS at each 5-10 minutes
[22:15] <Demon> I won't buy a 80 $ gps for a one launch only balloon
[22:15] <Matt_soton> does no-one use the lassen anymore?
[22:15] <Demon> (With a pic micro onboard to do so)
[22:16] <RocketBoy> i still use the iq - but have swapped to uBlox recently
[22:16] <Matt_soton> oh ok
[22:16] <RocketBoy> the iq is just not as sensitive - but it works ok
[22:17] <Matt_soton> well sensitivity isnt the most important thing when it has full view of the sky
[22:17] <RocketBoy> never had any real probs with it in about 12 flights
[22:17] <fsphil> it's the after-landing bit where it can be a real help
[22:17] <Matt_soton> what i want is some open GPS decoder that will run on a stm32 so we can get a cheap gps solution
[22:18] <Matt_soton> well providing u save the last good posisiotn all should be fijne
[22:18] <RocketBoy> my code just used to send out the last good position - so was OK even if it ended upside dowmn
[22:19] <Matt_soton> the thing which is may add to mine is to write last good to flash incase the power gets knocked on landing
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[22:22] <Demon> So, Sirf II is chosen as the GPS for our project.
[22:22] <Demon> To prevent any lock, a pic-micro will reset it at a set timelapse
[22:22] <Demon> There
[22:22] <Demon> Simple, cheap
[22:23] <Demon> Perfect
[22:23] <jonsowman> Why not go for something known to have no altitude issues?
[22:23] <Matt_soton> well how much did the sirf cost in the first place?
[22:23] <Demon> 20 $
[22:23] <Demon> There's no reason it wont work if it gets power cycled
[22:24] <Demon> Amiright ?
[22:24] <jonsowman> don't the sirfs die about 24 odd km?
[22:24] <jonsowman> the sirf 3s definitely do (maybe it's 60kft)
[22:24] <Matt_soton> well at leat if u power cycle it, itll get a fix on the way down
[22:24] <Demon> Exactly
[22:24] <Matt_soton> but u wont be able to tell about 24km
[22:24] <jonsowman> you hope
[22:24] <jonsowman> it's a bit of a risk to take
[22:25] <Demon> ? explain
[22:25] <jonsowman> and you won't know what altitude you reached
[22:25] <Demon> That I said is not required
[22:25] <Demon> Gps will be for recovery only
[22:25] <jonsowman> oh, you're not tracking during flight?
[22:25] <Demon> Well, under 18k meters
[22:25] <Matt_soton> it would be odd for the gps to not get a lock after being at 24km, but they could have done that
[22:26] <Demon> Yes, it might lock itself up
[22:26] <Demon> To unlock it, power cycle it
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[22:26] <Demon> After it's under 18km, of course
[22:26] <jonsowman> how do you know when it's under 18km if you haven't got a lock?
[22:26] <Matt_soton> it is possible it may write to flash or something to kill it for good, but i dont know why they would bother
[22:26] <Demon> Timer
[22:27] <Demon> Some member precedently told me it might be possible
[22:27] <jonsowman> they're not wrong
[22:27] <jonsowman> but it is an additional risk
[22:27] <jonsowman> you're relying on your power cycling system working
[22:27] <jonsowman> and at the right time
[22:27] <jonsowman> if it doesn't, you're stuffed
[22:27] <Demon> That power cycling would be required, but how on earth can we know ? So I wont take any risk : Power cycle
[22:28] <Demon> Time lapse
[22:28] <Demon> At each five minutes
[22:28] <Demon> Saves me 60 $ over a risk concern, really ...
[22:28] <Matt_soton> one time launch then
[22:29] <jonsowman> some GPSes are quite rubbish at getting a lock under dynamic conditions
[22:29] <Matt_soton> it would be a cold start every time?
[22:29] <jonsowman> Matt_soton: yeah
[22:29] <Demon> hot start
[22:29] <jonsowman> deepends on the gps
[22:29] <Demon> cold start is 2 hours
[22:29] <Demon> Oh, I see
[22:29] <jonsowman> the sirf II is quite old, depends how its nvram works
[22:30] <Matt_soton> well have u tested how long it takes?
[22:30] <Demon> It's been tested
[22:30] <Demon> Not me
[22:30] <jonsowman> and it's going to be worse when the payload is swinging and spinning on its descent
[22:30] <Demon> You mean it might not get its lock back up up there ?
[22:30] <jonsowman> it's a possibility
[22:30] <Demon> ...
[22:31] <jonsowman> I've never used a sirf II, and I don't know anyone that has, but from experience of the sirf IIIs, they're not good for HABs
[22:31] <Demon> If they can get a lock in a speeding car on the higway, it might not be that hard
[22:32] <jonsowman> you may well be right
[22:32] <Demon> The descent speed is 20km/h
[22:32] <Matt_soton> yea but it swings
[22:32] <jonsowman> it will decelerate from ~40m/s down to ~5m/s
[22:32] <Matt_soton> the speed maybe not such an issue
[22:32] <fsphil> and spins
[22:32] <jonsowman> as a rough guess
[22:32] <Demon> Gps's accuracy is 6 meters
[22:33] <jonsowman> spinning and swinging are indeed likely to be bigger issues than straight line velocity
[22:34] <Demon> Ugh.
[22:34] <Demon> Is it an reported issue ?
[22:34] <jonsowman> Matt_soton and I flew a sirf III on our first HAB
[22:34] <jonsowman> we lost it.
[22:34] <jonsowman> not for the exact same reasons but losing GPS lock is _really_ not what you want
[22:34] <Demon> Causes ?
[22:35] <jonsowman> we lost lock for a long time
[22:35] <Matt_soton> it 'regained' lock but it was way off
[22:35] <Demon> ?
[22:35] <Demon> It was innacurate ?
[22:35] <Demon> After regaining lock ?
[22:35] <jonsowman> either it had travelled a long way or there was a bug in the GPS parsing code
[22:35] <Matt_soton> by about 100km
[22:35] <jonsowman> at least
[22:36] <Demon> But what did CUSF landing predictor tell you ?
[22:36] <jonsowman> if we'd had packets in the meantime we would have stood a chance of working out what was going on
[22:36] <Demon> What about CUSF's accuracy ?
[22:36] <Matt_soton> the ascent rate was much slower then predicted
[22:36] <Matt_soton> and we assumed the gps to be right
[22:36] <Demon> In the kilometers, tens or hundreds ?
[22:36] <jonsowman> tens
[22:37] <jonsowman> we actively chose to ignore the prediction and go with the gps position
[22:37] <jonsowman> in hindsight that was probably the wrong thing to do
[22:37] <jonsowman> but nevertheless, we had to make a decision at the time
[22:37] <Matt_soton> after realising the gps was wrong we didnt bother driving back to where it would probably be
[22:37] <Demon> I see
[22:37] <jonsowman> it was very late and I'd already driven more than 500 miles :P
[22:37] <Matt_soton> but hey, not our money :P
[22:38] <jonsowman> anyway Demon, the point is, it's absolutely not a risk I would ever take again
[22:38] <Demon> Did you miscalculate the payload's weight and balloon's lift ?
[22:38] <jonsowman> we underfilled
[22:38] <Matt_soton> its hard to get the lift right
[22:38] <Demon> So it lost lock after or before 24 km ?
[22:39] <Demon> Well, you can verify with a weight down the balloon
[22:39] <Lunar_Lander> jonsowman : was that apex I?
[22:39] <Matt_soton> yes
[22:39] <Demon> When it lifts, you cut the helium
[22:39] <Demon> And put the payload on
[22:39] <Matt_soton> wind screws tht up
[22:39] <jonsowman> Lunar_Lander: yep
[22:39] <jonsowman> Demon: it's all very easy with hindsight ;)
[22:39] <jonsowman> have you done a HAB launch before?
[22:39] <Demon> That's for sure
[22:40] <Demon> We are heading straight for it
[22:40] <jonsowman> slightest bit of wind and correct filling becomes a huge amount more difficult
[22:40] <Demon> ... yes, call me newbie.
[22:41] <jonsowman> Demon: my point is, there are a lot of things that seem easy in principle but are in fact a lot harder when you come to actually do them
[22:41] <Demon> Can you measure the balloon's diameter instead ?
[22:41] <Demon> Hard to, I guess
[22:41] <jonsowman> very difficult, especially in wind, and you risk damaging the latex
[22:41] <Demon> I've seen you need gloves
[22:41] <jonsowman> advisable
[22:41] <jonsowman> fingernails cause a lot of damage
[22:42] <Matt_soton> not that we've ever bothered :P
[22:42] <jonsowman> and the grease on your fingers will degrade the latex quicker
[22:42] <jonsowman> Matt_soton: we should really
[22:42] <jonsowman> if you're careful you can get away without gloves
[22:42] <Demon> Ugh.
[22:42] <jonsowman> but if in doubt, they're probably a good idea
[22:42] <Demon> Why did it loose lock again ?
[22:42] <Demon> For no reason ?
[22:43] <Matt_soton> it went above 24km
[22:43] <Matt_soton> or whatever it was
[22:43] <jonsowman> hehe
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[22:43] <jonsowman> Demon: http://www.hexoc.com/pages/apex/apex-i.php#launch
[22:43] <jonsowman> perhaps of interest to you
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[22:44] <Matt_soton> btw, u could use a pressure sensor to turn the gps on below a certain pressure
[22:44] <jonsowman> to be honest at that stage I'd say just get a lassen iQ
[22:45] <Demon> What was the gps radio downlink for you ?
[22:45] <jonsowman> it was APRS kit but not on APRS frequency (we can't in the UK)
[22:46] <jonsowman> linux/debian ARM flight computer with ax.25 kernel module with a KISS mode tnc
[22:47] <Demon> I think I'll make a payload that only transmits once its on the ground.
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[22:47] <Demon> 5W power on144.390 MHZ
[22:47] <Demon> Digipeaters everywhere at 400m HAAT
[22:48] <Demon> Three Igates downtown
[22:48] <jonsowman> you're relying on it landing in range
[22:48] <Demon> 2 hours after launch the gps will lock, and radio transmit.
[22:48] <Matt_soton> at least turn on below 10km
[22:48] <Demon> Well, digipeaters are there for that
[22:48] <Matt_soton> pressure sensor altitude?
[22:49] <Demon> No
[22:49] <jonsowman> Demon: also relying on things like the electronics surviving the landing, the antenna being undamaged, batteries surviving the cold
[22:49] <SpeedEvil> Demon: the question is what happens if the thing lands in a dip, upside-down
[22:49] <Demon> Of course
[22:49] <Demon> Its the biggest concern
[22:50] <jonsowman> if you've had telemetry during the flight then if the thing dies on impact you've still got a damn good chance of finding it
[22:50] <Demon> But 5 kilometer wide farming fields spread all around the city
[22:51] <Demon> It'll eliminate the concerns about a gps lock
[22:51] <jonsowman> there is a good reason why most projects opt for in-flight telemetry
[22:51] <Demon> But for a big price, now to reconsider it
[22:51] <jonsowman> perhaps, but if it's the difference between getting your payload back and not...
[22:52] <Demon> Your gps lost lock after 24 km ?
[22:52] <jonsowman> 72549 feet was last reported altitude
[22:52] <Demon> And if I understood, bugged ?
[22:52] <jonsowman> we can't be sure
[22:52] <Demon> Last ever received
[22:52] <jonsowman> but that seems a plausible explanation
[22:52] <Demon> ?
[22:53] <jonsowman> no, we received others
[22:53] <jonsowman> from a long way away
[22:53] <jonsowman> http://www.hexoc.com/balloon/images/projects-apex-i-mp.jpg
[22:53] <jonsowman> see this
[22:53] <Demon> At wich altitude ?
[22:53] <jonsowman> no altitude data
[22:53] <Matt_soton> i forgot it lost altitude too
[22:53] <jonsowman> we estimate around 35000ft from the pressure
[22:54] <jonsowman> that link above details it
[22:54] <Demon> Maybe the bug and gps lock are related
[22:54] <jonsowman> quite possibly
[22:54] <jonsowman> as I've said, if we'd not have lost lock, we'd have had a much better chance of working out what was going on and hotfixing it
[22:54] <Demon> Thats why I could only get the gps to lock back on the ground
[22:54] <Lunar_Lander> ohh
[22:54] <Lunar_Lander> you launched near Moreton on Lugg!
[22:54] <Lunar_Lander> there was a train crash there a long time ago
[22:55] <jonsowman> Lunar_Lander: yeah, at a school in Bromyard
[22:55] <jonsowman> very pretty place
[22:56] <Lunar_Lander> yeah
[22:56] <Demon> Mhm, so an heavy duty payload box with gps only locking coordinates after ground contact would eleminate these problems
[22:56] <Lunar_Lander> hm
[22:56] <Lunar_Lander> can't find the PDF
[22:56] <Lunar_Lander> but IIRC there was a level crossing crash in the 1950s or so
[22:56] <jonsowman> Demon: if the GPS antenna lands upside down, it's extreemely unlikely to get a lock
[22:56] <Demon> You are right
[22:57] <jonsowman> also, whilst most people find the CUSF predictor to be a useful tool, we absolutely do not guarantee /anything/
[22:57] <Demon> To much for me to like you
[22:57] <Demon> What's its average accuracy with the prediction calculated exactly for launch ?
[22:58] <Demon> If the ascent and descent rate are exact ?
[22:58] <jonsowman> it's only as accurate as the information you give it
[22:58] <Demon> Yes
[22:58] <jonsowman> we normally landing within 10km of predicted site
[22:59] <Demon> Will it calculate the lower air pressure ?
[22:59] <jonsowman> but, for example, you give it an ascent rate of 5m/s, actually filling the balloon for that precisely, is very tricky
[22:59] <Demon> The chute will fall faster
[22:59] <jonsowman> Demon: correct, and yes
[22:59] <jonsowman> the descent rate you give it is the sea level descent rate
[22:59] <jonsowman> most people aim for between 4-5m/s for that
[23:00] <Demon> I guess you can calculate it on the ground
[23:00] <jonsowman> try that :)
[23:01] <Demon> For the parachute design, yes, but for a more accurate mesure you could launch it 20 meters of the ground
[23:01] <Demon> And time the landing
[23:01] <jonsowman> absolutely
[23:01] <Demon> Minus the accelerations tough
[23:01] <Lunar_Lander> awesome! http://www.sparkfun.com/products/10724
[23:01] <jonsowman> also useful for checking the deployment mechanism
[23:02] <Demon> gotta go
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[23:02] <Matt_soton> Lunar_Lander: thye dont come cheap...
[23:03] <jonsowman> $100!
[23:03] <Lunar_Lander> true
[23:04] <Lunar_Lander> the gyro is it probably
[23:04] <Lunar_Lander> the two- and three-axes gyros are very expensive
[23:04] <Lunar_Lander> and the magnetometer also
[23:04] <BrainDamage> one moment, I have a link for a much more reasonably priced one
[23:04] <Lunar_Lander> the accelerometer should be the cheapest part
[23:04] <BrainDamage> with and without gps
[23:06] <SpeedEvil> Urr - not really.
[23:06] <SpeedEvil> Things have gotten oooodles cheaper in the last 3 years
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[23:07] <SpeedEvil> 3 axis mag - $6 at sparkfu
[23:07] <BrainDamage> aw, crap, the bid ended and he relisted much more expensive, now it's not much cheaper anymore :/
[23:08] <Lunar_Lander> yea
[23:08] <BrainDamage> for the record, it was here, but it's kinda moot now http://stores.ebay.it/Special-RF-design/_i.html?_fsub=1828704017
[23:08] <Lunar_Lander> so the gyro is the most expensive part at $50
[23:08] <BrainDamage> 50$ for a gyro? o_O
[23:09] <SpeedEvil> No way
[23:09] <Lunar_Lander> yeah, 3-axis
[23:09] <BrainDamage> 20-30$ for the most expensive around
[23:09] <Lunar_Lander> http://www.sparkfun.com/categories/183
[23:09] <Lunar_Lander> BrainDamage : do you mean the ones in the middle column for 118 euro?
[23:09] <Matt_soton> u can get a £9 gyro from farnell
[23:09] <Matt_soton> 3 axis
[23:09] <BrainDamage> check the bare chip, not breakout
[23:10] <BrainDamage> when they add breakout boards, they inflate the price 300%
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[23:12] <Lunar_Lander> http://uk.farnell.com/invensense/imu-3000/gyro-drei-achsen-prog-2000-deg/dp/1858280
[23:12] <SpeedEvil> BrainDamage: Also they sometimes screw up the breakout, be careful
[23:12] <Matt_soton> http://uk.farnell.com/stmicroelectronics/l3g4200d/gyro-mems-3axis-16llga-16lga/dp/1872924
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[23:13] <Lunar_Lander> cool
[23:14] <griffonbot> @darksidelemm: http://t.co/DiDcA3HF Filling the balloon. #projecthorus [http://twitter.com/darksidelemm/status/115201954937970688]
[23:15] <BrainDamage> you'll need solder paste to solder those, I don't think the "flying wires" manually soldered on the bottom would be mechanically reliable enough
[23:15] <Lunar_Lander> yea
[23:15] <Lunar_Lander> or make a breakout myself?
[23:15] <SpeedEvil> You can solder QFN and similar with a conventional iron
[23:16] <Lunar_Lander> yes
[23:16] <SpeedEvil> You need to extend the pad out a little and hold the IC off the board with a bead on the main pad
[23:16] <Lunar_Lander> what does QFN mean?
[23:16] <Lunar_Lander> yea
[23:16] <BrainDamage> quad flat no lead
[23:16] <Matt_soton> the ic u linked to Lunar_Lander was qfn
[23:17] <Matt_soton> but qfn's pads go up the side a little bit, which make them easier to solder
[23:17] <BrainDamage> I've seen some without :/
[23:17] <BrainDamage> as in, no side extensions
[23:18] <Matt_soton> odd
[23:18] <Matt_soton> i havnt soldered enough to notice
[23:18] <Lunar_Lander> ah
[23:18] <BrainDamage> no, not soldered them myself, just googled datasheets and checked package infos
[23:18] <BrainDamage> exactly to know if I could solder myself >_>
[23:19] <Matt_soton> lots of flux
[23:20] <Matt_soton> have a ball of solder on the iron
[23:20] <BrainDamage> I've soldered smd
[23:20] <Matt_soton> and touch the edge of the ball agaisnt the edge of the package, and it should flow under the package
[23:21] <BrainDamage> I've started flooding with flux even trough hole as habit since I've picked up smd >_>
[23:21] <Matt_soton> u should be fine with qfn, get some samples and find out
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[23:26] <Lunar_Lander> wb RocketBoy
[23:27] <RocketBoy> launch launch launch
[23:29] <daveake> RocketBoy ... just waking up here :B .... neck lift was 1600g though it was quite difficult to measure with the gusts
[23:30] <RocketBoy> ah ta that completes the picture
[23:31] <daveake> Slower ascent than I was aiming for. Expected landing point was SW of Bury St Edmunds but of course it got a bit further than that :p
[23:32] <Lunar_Lander> yeah
[23:32] <Lunar_Lander> but 36 1/4 km
[23:32] <daveake> That's the upside, yes :)
[23:33] <daveake> I was sat outside a Little Chef watching it creep up the record list, whilst my crew stuffed their faces inside.
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[23:34] <daveake> One thing I've learnt (of many) is to allow more leeway on the landing position of flights that will travel a fair distance
[23:34] <daveake> Have been calling the backup tracker throughout the day (well, when I've been awake that is); still no reply.
[23:35] <SpeedEvil> np: Blondie - Hanging on the telephone.
[23:35] <daveake> :D
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[23:36] <daveake> I did mention this b4 but for those that missed it ... when topping up the SIM card it received a message .... "You still have not claimed for the accident that you had" ...
[23:37] <daveake> Must have come from Mystic Meg Ambulance Chasers lol
[23:38] <Lunar_Lander> xD
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[23:45] <Lunar_Lander> daveake : or the Mystery Science Theater 3000 :)
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[23:46] <daveake> :)
[23:48] <daveake> Buzz1 next. At least he's cheaper if I lose him too :D. Ideally a slow-wind day will happen at a convenient point. I think I'll go over to cambs for that one.
[23:54] <Lunar_Lander> daveake : do you know MST3K?
[23:55] <daveake> Don't recognize that no
[23:56] <Lunar_Lander> http://www.youtube.com/watch?v=aAwh1Wtb8QE&feature=related
[23:57] <daveake> lol
[23:58] <Lunar_Lander> the show is cool!
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[00:00] --- Sun Sep 18 2011