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[04:29] <Bahiense> Hello everyone... can I ask a question?
[04:30] <SpeedEvil> ?
[04:30] <SpeedEvil> most people are asleep here - UK tiem
[04:30] <Bahiense> Yeah, it's pretty late here too
[04:31] <Bahiense> anyway... why the balloon capsule always consists of a box? do you know if someone has explored any other form factors?
[04:31] <SpeedEvil> No real reason.
[04:31] <SpeedEvil> You can make it a hollow penguin if you like.
[04:32] <SpeedEvil> It's just a box is easy, and has a reasonable volume per unit weight.
[04:34] <Bahiense> Yes, but I would tend to think the aerodynamic shape of the capsule makes it more or less stable and affects its rotation or lack of
[04:34] <SpeedEvil> Not really.
[04:34] <SpeedEvil> For any reasonable sized payload, especially in the upper atmosphere - the drag is almost negligable.
[04:36] <SpeedEvil> That is - the drag on a rotating payload acting to damp its spin
[04:36] <SpeedEvil> And indeed - if you look on the wiki you will find links to spinning videos
[04:43] <Dan-K2VOL> Bahiense you still around?
[04:43] <Dan-K2VOL> what's got you up SpeedEvil
[04:43] <Bahiense> Yes
[04:43] <Dan-K2VOL> so late
[04:43] <Bahiense> Indeed
[04:43] <Bahiense> Almost 2 am here
[04:44] <Dan-K2VOL> the air is so thin above about 20,000 ft that aerodynmics of anything a half meter or smaller are not very effective
[04:44] <Dan-K2VOL> where are you form Bahiense
[04:44] <Dan-K2VOL> from
[04:45] <Bahiense> Argentina
[04:45] <Dan-K2VOL> very cool!
[04:45] <Dan-K2VOL> I'm in the USA one time zone west of you
[04:46] <Dan-K2VOL> what do you do Bahiense
[04:46] <Bahiense> I know the air is thin up there, but I've seen a lot of rocky ascents, so I was wondering if a different form factor would stabilize the capsule better in the first part of the flight and maybe during the fall back to Earth
[04:47] <Bahiense> Nice... I'm in the software business, so this is mainly a hobby for me
[04:48] <Dan-K2VOL> probably, the first 20 seconds of descent can allow the payload to reach 240kph in near-freefall
[04:49] <Dan-K2VOL> but if the parachute is wide open (it usually is at that point) and it's not got enough drag to even to pull the rope tight, I don't think the shape of the payload box is going to help much.
[04:49] <Dan-K2VOL> some people have used long poles on the payloads held horizontally to stabilize them
[04:49] <Dan-K2VOL> which seems to help
[04:51] <Bahiense> I see
[04:56] <Dan-K2VOL> are you familiar with the stratocat.ar site?
[05:04] <Bahiense> stratocat.com.ar, yes!
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[06:59] <fsphil> hehe, sunday: http://habhub.org/predict/#!/uuid=11124f535ef4201c89a327b00aaa8af2b40697be
[07:03] Action: Darkside is looking at how to use an external clock with SPI on an arduino
[07:03] <Darkside> i want to clock an output using a timepulse signal from a ublox
[07:06] <fsphil> wouldn't a gps time signal be too slow?
[07:06] <Darkside> you can configure the ublox to output other pulse frequencies
[07:07] <Darkside> i.e. i can set it to do a 100Hz square wave
[07:07] <Darkside> i want to do some experimentation, to see if i can make it do 300 baud
[07:08] <RocketBoy> ah - synchronus de-modulation
[07:09] <Darkside> i'm more interested in seeing how accurate i can get the frequency transisions to correspond to gps time
[07:09] <Darkside> if i can have it modulating with a systematic error, i could correct for the error and work out time of flight
[07:13] <Darkside> i might try and write my own transmitter using an interrupt
[07:13] <Darkside> that would have a significant delay though, but it might be usable still
[07:14] <eroomde> Darkside: also, gps-disccilpined frequency stabilisation!
[07:14] <eroomde> that'd be pretty cool
[07:14] <eroomde> disciplined too*
[07:15] <Darkside> yeah i'd like to do that
[07:15] <Darkside> but that'll be too hard to do really
[07:16] <Darkside> my HF transmitter requires a 50MHz reference oscillator
[07:16] <Darkside> while i could get a 10MHz reference from some of the nicer ublox chips and PLL up to 50MHz, it's not worth it
[07:16] <Darkside> my HF transmitter doesn't noticeably drift during flights anyway
[07:16] <eroomde> which u'blox's do 10MHz?
[07:17] <Darkside> the LEA-6Ts
[07:17] <Darkside> the special timing ones
[07:17] <Darkside> >$100 each afaik
[07:17] <eroomde> still....
[07:17] <eroomde> that opens up some really interesting possibilities
[07:17] <Darkside> not sure about allan variance and phase noise
[07:17] <eroomde> hmm, thanks for that Darkside
[07:17] <Darkside> i want to get one just to play with
[07:17] <eroomde> yeah quite!
[07:18] <eroomde> comes with a microsoft certified usb driver too! :|
[07:19] <eroomde> i was thinking such a thing would be especially useful on a balloon-borne Rx
[07:19] <Darkside> yes
[07:19] <Darkside> so the RX doens't drift
[07:19] <eroomde> where one wants to be able to uplink on precise frequencies and not too much power - so good tight filters on the balloon Rx, and this might let you get around the drift issue
[07:19] <Darkside> but the best solution to that is a receiver that doesn't use frequency multiplication
[07:20] <Darkside> the NTX2 being an example of how tiny errors in the crystal get blown out by multiplication
[07:20] <eroomde> sure indeed
[07:20] <Darkside> i've used the TX1H's, which use a 151.3MHz crystal - they dont drift
[07:20] <Darkside> or if they do, it wasn't noticed by us
[07:20] <eroomde> what's a good robust topology then, do you reckon?
[07:20] <Darkside> crystal controlled
[07:20] <Darkside> do some testing to see how far it drifts
[07:20] <eroomde> ah right, so just get as high an xtal as you can
[07:21] <Darkside> yes
[07:21] <Darkside> for a receiver you could use 2m
[07:21] <eroomde> much simpler solution :)
[07:21] <Darkside> just not for transmitting
[07:21] <eroomde> yeah
[07:21] <eroomde> that's what i wanted to do infact - 2m dtmf
[07:22] <Darkside> you can get 2m radiometrix modules
[07:22] <Darkside> they have crystals designed for that frequency, i've got some on order actually
[07:22] <Darkside> i'll let you know how badly they drift
[07:22] <eroomde> that'd be grand, thanks
[07:22] <RocketBoy> Are you sure multiplication makes any difference - crystals are speced in ppm
[07:23] <Darkside> RocketBoy: it does seem to be the problem
[07:23] <eroomde> just before i dive into ducumentation, do you know if the 10MHz ref works without sats too, like pps?
[07:23] <Darkside> maybe its some issue in the multiplier
[07:23] <Darkside> eroomde: you can have ot running asynchronously
[07:23] <Darkside> it*
[07:23] <eroomde> cool
[07:23] <Darkside> note that its only accurate when the GPS is stationary
[07:24] <eroomde> so you could have it run your uC and Tx
[07:24] <Darkside> well, 15ns accurate anyway
[07:24] <Darkside> i highly doubt you'd get that kind of accuracy when moving
[07:24] <Darkside> in fact, you won't
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[07:24] <eroomde> sure, but the point is it'd be roughly stable
[07:24] <Darkside> yeah
[07:24] <Darkside> but we've found the VHF radiometrix modules to not drift anyway
[07:25] <Darkside> and my HF transmitter didn't drift either
[07:25] <eroomde> lower accuracy in terms of rising edge jitter but still probably 10MHz
[07:25] <RocketBoy> Darkside: are you basing this on the results of the tx1H or a wider survey?
[07:25] <Darkside> the TX1H, which we've flown before
[07:25] <Darkside> it doesn't multiply the crystal frequency
[07:25] <Darkside> the NTX2 does
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[07:26] <RocketBoy> well the ntx2 crystal is about 80MHz IIRC so if it was an issue then the troblem would only be twofold or so
[07:27] <Darkside> it multiplies by 5 afaik
[07:28] <RocketBoy> yes to get to 434MHZ
[07:28] <Darkside> we know from our flights that the NTX2s drift by 10KHz or so
[07:28] <Darkside> the TX1H on 151.3 did not drift noticeably
[07:28] <RocketBoy> the tx1h is 150MHz odd
[07:28] <Darkside> my HF transmitter was the same
[07:28] <RocketBoy> so thats about 3x more
[07:29] <Darkside> eh?
[07:29] <Darkside> the 151.3 module has a 151.3MHz crystal in it
[07:29] <RocketBoy> yes and the ntx2 is on 434MHz - so thats 3 x higher - so 3x the drift
[07:30] <RocketBoy> its thae same parts per million
[07:30] <RocketBoy> nothing to do with the use of multiplication as a technology
[07:30] <Darkside> but the ntx2 uses a 80mhz crystal, whichis multiplied by 5
[07:30] <Darkside> so you would expect any errors to me multiplied by 5
[07:31] <Darkside> vs not being multiplied at all on the 151.3MHz crystal driven module
[07:32] <RocketBoy> you wouldn't expect as much drift on a lower frequency - its just a ratios thing
[07:35] <RocketBoy> i'd be very surprised if the act of multiplication resulted in a worse drift (as a ratio) - so 5 x 30MHz crystal or 3 x 50MHz crystal will result in the same drift
[07:36] <Darkside> i dunno
[07:36] <Darkside> but we've seen evidence for the TX1H not drifting
[07:37] <Darkside> and the NTX2 drifting a shitload
[07:37] <Darkside> tbh if it stays within the passband of our receiver, we're happy
[07:37] <RocketBoy> well you would expect the NTX2 to drift 3 times as much as its working at 3x the frequency
[07:38] <Darkside> the TX1H did not drify by 3KHz
[07:38] <Darkside> it might have drifted by max 100Hz, if that.
[07:38] <Darkside> we never had to re-tune the receiver.
[07:39] <RocketBoy> sure - i'm prepared to believe that its better - who knows the circuitry is probably different - but i'm not sure you can attribute that all to multiplication
[07:50] <RocketBoy> Darkside: are you in the uk/
[07:51] <RocketBoy> ?
[07:51] <Darkside> nope
[07:51] <Darkside> australia
[07:52] <RocketBoy> ah - that explains why your using 151.3MHz - cos it would be illegal over ere
[07:52] <Darkside> yup
[07:52] <Darkside> i could fly a 100W hf transmitter if i wanted
[07:52] <Darkside> could be a bit problematic though :P
[07:53] <Darkside> dammit, i'm sure i wrote an interrupt driven RTTY transmitter already...
[07:55] <Darkside> KNEW IT
[07:55] <Darkside> just found the code :-)
[07:55] <RocketBoy> we cant even legally use the 173MHz variant of the TX1H :-(
[07:56] <Darkside> :<yah
[07:56] <Darkside> sucks to be in the UK for this kind of thing
[07:56] <RocketBoy> not allowed for airborne operation
[07:58] <Darkside> i wonder if anyone has written a library for the uBlox binary mode
[07:58] <Darkside> im thinking it could be useful
[07:59] <RocketBoy> yeah - also bad geographically - never more than 73 miles from the sea
[07:59] <Darkside> oh yes
[07:59] <Darkside> thats also painful
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[08:30] <juxta_> ping jonsowman
[08:33] <mattltm-alt> Has anyone used the case of an NTX2 as a heatsink for a 3.3v reg?
[08:36] <juxta_> mattltm-alt, that's a good idea
[08:39] <fsphil> I sort of did on hadie2, accidentally :) dropped the board and the vreg bent back, resting on the ntx2
[08:40] <fsphil> only a small area of contact though- doubt it made much difference
[08:48] <cuddykid> RocketBoy: ping
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[09:04] <RocketBoy> cuddykid: yo
[09:13] <cuddykid> Hi RocketBoy, will be back in a few mins
[09:22] <cuddykid> back
[09:24] <RocketBoy> me 2
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[09:27] <cuddykid> did you want to speak to me RocketBoy as I had some popups from you?
[09:28] <RocketBoy> ah - that was yesterday - just to tell u the balloon was shipped
[09:28] <cuddykid> ahh right
[09:28] <cuddykid> thanks :)
[09:30] <cuddykid> it's not a sign for is it?
[09:30] <RocketBoy> nope - just normal post
[09:31] <cuddykid> cool :)
[09:33] <RocketBoy> bbl
[09:34] <Darkside> ok
[09:34] <Darkside> i have synchronous RTTY Going :D
[09:34] <Darkside> well, the transmission is synced to a GPS disciplined clock anyway
[09:37] <fsphil> sweet
[09:37] <Darkside> now i should do some hacking and make it start transmission on a second
[09:38] <Darkside> i.e. switch it to 1PPS, then when i transmit, wait for the next pulse, switch it to 100PPS, then once i'm finished transmitting switch back to 1PPS
[09:49] <Darkside> ahh crap, thats not goign to work
[09:50] <Darkside> i can't send data via serial from within the external interrupt
[09:50] <fsphil> could save the data out to a buffer that's processed by non-interrupt code
[09:51] <Darkside> yeah, but i need perfect timing
[09:51] <Darkside> i have a better solution anyway
[09:51] <Darkside> i already havd a 100Hz interrupt - just have an internal counter
[09:51] <Darkside> i also reset the counter on the first byte from the GPS
[09:52] <Darkside> hmm, need to be careful with that
[10:20] <fsphil> is the live prediction on the tracker still working?
[10:20] <cuddykid> fsphil, I haven't seen it for a while.. a shame as it was great!
[10:21] <cuddykid> LOL! A comment on hackaday about ardupilot... "hy sir i am a student of electronic engineering from comsats institute of IT abbottabad Pakistan. i want to prepare an autopilot drone as my final year project.could you please help me to understand main features of typical drones. i will wait for ur kind reply. thanks." ... Hmmm... I wonder who that could have been!
[10:38] <jonsowman> juxta_: ping
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[11:19] <cuddykid> what about a quadcopter with payload box mounted ontop for an automonous return vechicle?
[11:24] <Laurenceb> is it possible to reflash bios?
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[11:32] <fsphil> on a PC? I guess so - I've updated a few before
[11:33] <Laurenceb> the bios is corrupted so it wont boot tho
[11:45] <fsphil> aah
[11:45] <fsphil> last time that happened me, I was lucky to have a second identical board
[11:45] <fsphil> swapped the bios chips after booting, then reflashed the bad one
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[12:03] <Hibby> my bios is being grumpy at the moment to
[12:03] <Hibby> **too.
[12:03] <Hibby> I've unplugged everything and taken the battery out
[12:34] <Upu> http://ec2-46-137-35-28.eu-west-1.compute.amazonaws.com/
[12:34] <Upu> Copenhagen Suborbital Launch
[12:45] <Darkside> have they launched yet?
[12:45] <SpeedEvil> Oh - the guys with the sub.
[12:46] <Darkside> ooh hose guys
[12:46] <Darkside> those guys*
[12:46] <Darkside> their last launch got scrubbed, right?
[12:46] <SpeedEvil> Their hairdrier failed I think
[12:47] <Darkside> haha
[12:53] <Darkside> interesting antenna
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[12:58] <fsphil> that launcing today?
[12:58] <fsphil> launching
[12:58] <Laurenceb> that page is mad
[12:58] <Laurenceb> guess thats to be expected
[12:59] <Laurenceb> when is launch?
[13:00] <Laurenceb> i see fuelling
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[13:02] <BrainDamage> launch is in 30 min
[13:02] <BrainDamage> there's a countdown at the bottom of the page
[13:02] <Laurenceb> that page is an eyesore
[13:03] <BrainDamage> yeah
[13:03] <SpeedEvil> It's web 3.0!
[13:05] <BrainDamage> to me it seems web sqrt(-1)
[13:05] <Darkside> lol
[13:09] <Laurenceb> well it has video and social newworking
[13:09] <Laurenceb> but looks like geocities
[13:10] <Laurenceb> must be web 3.0
[13:10] <Darkside> web j2.0
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[13:11] <Laurenceb> heh
[13:11] <Laurenceb> is there an actual proper feed
[13:15] <Darkside> i like the look of th news feed
[13:16] <Darkside> if it wasn't being rebroadcast
[13:16] <Laurenceb> exactly
[13:25] <Laurenceb> 4 minutes
[13:28] <Darkside> WHY THE WEATHER
[13:28] <Darkside> grr
[13:28] <Darkside> wheres the footage of the launch dammit
[13:29] <Laurenceb> wtf
[13:29] <SpeedEvil> Has anyone worked out if the rebroadcast stream is abailable on the broadcasters site?
[13:29] <BrainDamage> mmm, looks like the launch time is changed, or the countdown is fucked, because it says 15:45 in the vid
[13:29] <Laurenceb> 10 seconds
[13:29] <Darkside> no video tho
[13:29] <Darkside> nfi wahts going on
[13:30] <Darkside> jut adverts on aarhaus channel...
[13:31] <fsphil> site is dead for me
[13:31] <Laurenceb> what
[13:31] <Laurenceb> neeed videoooo
[13:32] <Laurenceb> postponed by 15mins?
[13:32] <Darkside> rebooting something
[13:37] <BrainDamage> fucking flash player, one of the vids keeps getting stuck :/
[13:37] <Laurenceb> what the hell is going on over there
[13:37] <Darkside> they are rebooting something on teh rocket
[13:37] <Laurenceb> bah another 15minutes
[13:39] <Darkside> people keep linking http://sputnik.tv2.dk/play/event/820/
[13:39] <Darkside> but it doesnt work fo rme
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[13:43] <Darkside> ugh
[13:43] <Darkside> low rumble
[13:43] <Darkside> + feedbac
[13:47] <Laurenceb> http://www-307.ibm.com/pc/support/site.wss/MIGR-4P52BM.html
[13:47] <Laurenceb> im trying to understand that
[13:48] <Laurenceb> how do i load it onto the machine?
[13:48] <Laurenceb> would it work with a ucb flash drive?
[13:48] <Laurenceb> *usb
[13:48] <Darkside> pressurising tanks
[13:49] <Darkside> i dont know dutch, but it sounds like he's counting something
[13:49] <Laurenceb> sheep
[13:50] <Darkside> oh lol they are using APRS on it
[13:50] Action: Laurenceb is determined to ressurect his thinkpad
[13:50] <Darkside> awesome
[13:51] <Laurenceb> ah this is more like it
[13:53] <Darkside> ugh
[13:53] <Darkside> the link they give doesnt work
[13:53] <Darkside> mms://itv02.digizuite.dk/tv2b
[13:54] <Darkside> thats the mms link but i can't loat it
[13:54] <Darkside> load it*
[13:54] <BrainDamage> it's probably denmark only
[13:54] <Darkside> yeah
[13:54] <Darkside> launch now within 40 minutes..
[13:54] <BrainDamage> I'm more annoyed by the vid crapping itself regularry
[13:54] <Laurenceb> totem cant connect
[13:57] <Darkside> pressurizzation has stopped
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[13:57] <Laurenceb> launch launch launch grrrr
[13:58] <Laurenceb> another 15 minute delay :(
[13:58] <Laurenceb> worse than space shuttle
[13:58] <Darkside> yup
[13:58] <Darkside> :<
[13:59] <cuddykid> Laurenceb: where's the video link? Not working for me :(
[13:59] <BrainDamage> unlike nasa, they don't have the experience though
[13:59] <BrainDamage> I doubt every space agency got everything right the first time
[13:59] <BrainDamage> in fact, if we want to count the accidents ...
[14:02] Action: Laurenceb predicts a spin 180 just after takeoff
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[14:03] <Dan-K2VOL1> what's launching"?
[14:05] <kf5kwe> are you asking that as a general question or specifically to someone?
[14:05] <Darkside> mms://itv02.digizuite.dk/tv2b
[14:05] <Darkside> argh wrong link
[14:05] <Dan-K2VOL1> Darkside I suppose
[14:05] <Darkside> http://ec2-46-137-35-28.eu-west-1.compute.amazonaws.com/
[14:05] <Darkside> no, i'm not launching
[14:05] <Darkside> copenhagen suborbitals is
[14:05] <Darkside> hopefully
[14:05] <Dan-K2VOL1> ooooh really
[14:05] <Dan-K2VOL1> I'll be darned
[14:05] <Dan-K2VOL1> no wonder it's not on SpaceFlightNow
[14:06] <kf5kwe> wow ad overload
[14:07] <Dan-K2VOL1> pretty cool page though
[14:08] <Laurenceb> that... cool?
[14:08] <BrainDamage> http://raketvenner.dk/launch/
[14:08] <BrainDamage> this one is much simpler
[14:08] <BrainDamage> and has only the relevant stuff
[14:09] <Dan-K2VOL1> well from personal experience, it's hard to make a mission control web page. there's a lot of info to display, and people have small screens
[14:09] <Darkside> oh wow
[14:09] <Darkside> i love the yagi array
[14:10] <fsphil> wonder if TV2 is on satellite anywhere
[14:11] <fsphil> unencrypted
[14:11] <Laurenceb> can someone explain how bios update works?
[14:11] <Laurenceb> can i use a usb flash drive?
[14:12] <kf5kwe> my asus flashes with their app
[14:12] <Darkside> doubt it
[14:13] <fsphil> not if the bios is dead already
[14:13] <kf5kwe> well Laurenceb said update...
[14:13] <kf5kwe> i assumed that meant it's not borked
[14:13] <Laurenceb> ah
[14:14] <Laurenceb> yes its borked
[14:14] <Laurenceb> CRC2 error
[14:16] <Hibby> I appear to have a corrupt bios... somehow, so once i find some relevant technology I'll sort it
[14:17] <Dan-K2VOL1> you need a neutron scanner hibby
[14:17] <fsphil> if you've another board with a compatible socket, you might get away with booting that machine with it's own bios, swapping that for the dodgy one, and flashing
[14:17] <Dan-K2VOL1> hibby, are you over here yet?
[14:17] <Hibby> Dan-K2VOL1: nope, July
[14:18] <Hibby> get my results for this year next week :S
[14:18] <Dan-K2VOL1> ahhhh
[14:21] <fsphil> launch within 10 minutes according to the stream
[14:21] <Dan-K2VOL1> a little concerned that their aprs hasn't updated in a long time
[14:22] <Hibby> and then it'll be happy times or sadtimes
[14:23] <fsphil> no sign of it on any of the uk news channels
[14:26] <Darkside> here we go
[14:26] <BrainDamage> weee, countdown started
[14:26] <cuddykid> oooooooo.. tension....
[14:27] <Darkside> tensionnnnnnnnn
[14:27] <Darkside> here we goooo
[14:27] <cuddykid> dunnnn dunnn
[14:28] <Darkside> BOOM
[14:28] <cuddykid> hmm lol
[14:28] <Darkside> awwwwwwww
[14:28] <Darkside> well that was shit
[14:29] <cuddykid> haha
[14:29] <Randomskk> uhm
[14:29] <Randomskk> shouldn't something have happened
[14:29] <fsphil> no boom
[14:29] <Randomskk> so at least it didn't explode I guess but like
[14:29] <Darkside> yeah
[14:29] <Randomskk> there's a distinct lack of rocket takeoff
[14:29] <Darkside> something failed
[14:29] <cuddykid> lol Randomskk
[14:29] <Darkside> so this is the pount where they get closer and closer
[14:29] <Darkside> then BOOM
[14:29] <fsphil> gravity 1 - rocket 0
[14:30] <Randomskk> auto sequence failed apparently, retrying
[14:30] <cuddykid> that's why you should use a HAB ;)
[14:30] <fsphil> "Auto Sequence failed at first attempt"
[14:30] <fsphil> retying
[14:30] <Darkside> launch from a HAB :P
[14:30] <fsphil> retrying
[14:30] <Randomskk> rertying? if this was NASA they'd be doing a six month investigation
[14:30] <fsphil> "Auto Sequencer was not started"
[14:30] <fsphil> haha
[14:30] <Randomskk> haha oops
[14:30] <BrainDamage> their budget isn't nasa's :p
[14:30] <fsphil> 10 minutes
[14:31] <Darkside> no
[14:31] <Darkside> 1:30
[14:31] <Darkside> they are gonna try again
[14:31] <fsphil> someone just mentioned electrical fault
[14:31] <cuddykid> commonnnn
[14:31] <Darkside> are you listeing to the radio feed?
[14:31] <cuddykid> yeah
[14:32] <cuddykid> and video
[14:32] <Darkside> video is lagged
[14:32] <fsphil> it's smoking
[14:32] <Darkside> very lagged
[14:32] <Randomskk> there's a radio feed?
[14:32] <cuddykid> yeah
[14:32] <Tvilling> Liftoff! :D
[14:32] <cuddykid> woo
[14:32] <Darkside> fucking video lag
[14:32] <Darkside> WOAH
[14:32] <Darkside> oh man
[14:32] <Randomskk> man, you guys, my video was like ten seconds behind
[14:33] <cuddykid> insane
[14:33] <Darkside> same Randomskk
[14:33] <fsphil> BOOM!
[14:33] <Randomskk> fsphil: nooo don't
[14:33] <fsphil> bit of a wobble
[14:33] <fsphil> it also appears to have went to warp
[14:34] <Darkside> aprs isnt updating
[14:34] <cuddykid> recovery already?! :S
[14:34] <imrcly> aprs isn't even responding for me
[14:35] <fsphil> seems to be still falling from the video stream
[14:35] <Randomskk> parachute failure apparently
[14:36] <kf5kwe> boom?
[14:36] <cuddykid> still came out though I think
[14:36] <fsphil> landed
[14:36] <Randomskk> splash!
[14:36] <fsphil> no, still going
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[14:37] <fsphil> there it is
[14:37] <fsphil> wait, where'd it go lol
[14:37] <Dan-K2VOL1> plunk
[14:37] <Randomskk> so how high did it go?
[14:37] <Dan-K2VOL1> well bravo
[14:37] <kf5kwe> bloop
[14:37] <fsphil> that was impressive
[14:37] <Darkside> we went highet
[14:37] <Darkside> higher*
[14:37] <Darkside> >_>
[14:37] <cuddykid> doubt if that went anywhere near hab altitude
[14:37] <Randomskk> really?
[14:37] <fsphil> it was suppose to hit 100km right?
[14:37] <Darkside> it didn't
[14:37] <Darkside> no way
[14:37] <Dan-K2VOL1> yeah, with a freefall time of about 30 seconds to 1 minute
[14:38] <Dan-K2VOL1> I'd guess it made it to 10,000 ft
[14:38] <cuddykid> was only being powered for about 1min max
[14:38] <Dan-K2VOL1> but darn good flight!
[14:38] <Darkside> no way that went above 4-5km
[14:38] <cuddykid> indeed
[14:38] <cuddykid> wouldn't like to be in the head of that though!!
[14:38] <cuddykid> *nose cone
[14:39] <kf5kwe> if that was 5km that was some serious g's
[14:39] <Dan-K2VOL1> glad I dropped in and you guys were talking about it, I would have missed it
[14:39] <kf5kwe> same here
[14:39] <kf5kwe> i just got irc working again
[14:39] <kf5kwe> for the first time, and gotta say glad my timing was on for once
[14:40] <fsphil> I gotta find a better TV2 stream for next time :)
[14:41] <Tvilling> fsphil, Darkside: The objective of this mission weren't to aim for the highest altitude possible, but rather to test all the subsystems.
[14:41] <Darkside> good thing they did
[14:41] <fsphil> indeed
[14:41] <Darkside> parachute fail is a biggie
[14:41] <Tvilling> The chute failed on the booster, but not on the capsule. :)
[14:42] <Darkside> ahh ok
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[14:43] <fsphil> aah the target was 15km
[14:43] <fsphil> wonder what they got
[14:46] <Laurenceb> is there a proper video anywhere?
[14:47] <fsphil> can't find any yet
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[14:50] <fsphil> I can't wait to see what these guys come up with when it's all working
[14:50] <Darkside> http://vimeo.com/24410924
[14:57] <Dan-K2VOL1> very exciting
[14:58] <Laurenceb> hmm looks like my battery backed ram bios is shot?
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[14:59] <Laurenceb> the memory backup bat is flat on the mboard
[14:59] <Bahiense> Hello all
[14:59] <Dan-K2VOL1> Bahiense morning
[14:59] <Laurenceb> how does that screw up the bios?
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[15:22] <fsphil> righty, I'd need to start packing for tomorrow
[15:22] <Dan-K2VOL1> where going to phil?
[15:22] <fsphil> balloon launch
[15:23] <fsphil> want to get everything ready tonight, cause last time was a bit of a rush
[15:23] <Dan-K2VOL1> nice!
[15:23] <Dan-K2VOL1> good plan
[15:23] <Dan-K2VOL1> the hadie:3?
[15:23] <fsphil> yea
[15:23] <fsphil> was talking with the guys today, if we get this one back there might be a hadie:4 on sunday
[15:23] <Dan-K2VOL1> I've posted your launch note to the GPSL list, I'll be watching!
[15:23] <Dan-K2VOL1> ooh nice
[15:24] <fsphil> saw that, thanks :)
[15:24] <fsphil> no pressure lol
[15:24] <Dan-K2VOL1> ha
[15:24] <Dan-K2VOL1> going to be able to live stream any video from launch?
[15:24] <fsphil> it should be a nice simple flight
[15:24] <fsphil> that I'm not sure
[15:24] <fsphil> my own phone has no hope, but someone else might be able to
[15:24] <Dan-K2VOL1> I like your pics over RTTY thing
[15:25] <fsphil> it's pretty nifty when it works
[15:25] <Dan-K2VOL1> I would love to see it perfected over HF someday
[15:25] <Dan-K2VOL1> have you found a way to deal with lost packets?
[15:26] <fsphil> yea- each packet contains enough info in the header to allow the gap to be filled in
[15:26] <Dan-K2VOL1> oh with a blank or something?
[15:26] <fsphil> there'll still be a gap, but the rest of the pic won't be affected
[15:26] <fsphil> yea
[15:26] <Dan-K2VOL1> nice! are they jpegs?
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[15:26] <fsphil> they are indeed
[15:26] <Dan-K2VOL1> very cool phil. how big are they?
[15:27] <fsphil> just 320x240, about 5k-ish each depending on what's in them.
[15:27] <fsphil> for 300 baud it's important to keep them small, or it'll take too long to send them
[15:28] <fsphil> it was about 4 minutes per pic last time
[15:28] <Dan-K2VOL1> yeah
[15:28] <fsphil> with a bit more power 1200 baud would be an option
[15:28] <Dan-K2VOL1> not too bad, how much power is your tx
[15:28] <fsphil> 10mw
[15:29] <Dan-K2VOL1> ah not bad
[15:29] <BrainDamage> how much is the BER at 1200 baud?
[15:29] <fsphil> would prefer a bit more :)
[15:29] <Dan-K2VOL1> wonder how well it will work over HF
[15:29] <BrainDamage> and current power that is
[15:29] <Dan-K2VOL1> I've run 300 baud packet on HF before many years ago
[15:30] <fsphil> we (me and mattltm) tried over HF a few weeks ago, but conditions where awful and nothing was received
[15:30] <Dan-K2VOL1> ahh
[15:30] <fsphil> I've a pretty poor HF setup though
[15:30] <Dan-K2VOL1> me too
[15:30] <fsphil> a balloon would have it easier
[15:30] <Dan-K2VOL1> hmm
[15:30] <Dan-K2VOL1> but you guys can't do balloon HF unless you leave the UK can you
[15:30] <fsphil> unfortunately yea
[15:31] <Dan-K2VOL1> brb restart needed
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[15:32] <BrainDamage> random idea: added detachable weight to the balloon so that it hovers, and wait that it exits uk land before starting to transmit, and detach weight to climb ? :p
[15:33] <fsphil> NOT SURE BrainDamage, I've not done any proper calculations on it
[15:33] <fsphil> oh caps
[15:33] <fsphil> I could get a boat, and launch over the atlantic :)
[15:34] <fsphil> make it a floating payload, recovery would be simple
[15:34] <fsphil> I've lost my cover for the radio
[15:34] <fsphil> bah
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[15:49] <mattltm-alt> Howdy folks :)
[15:54] <cuddykid> Problem - the sellotape isn't sticking to the polystyrene payload box! How do you guys affix notice? maybe stronger masking tape is needed?
[15:55] <jonsowman> gaffer tape!
[15:56] <eroomde> yes
[15:56] <eroomde> all hab is founded on gaffa tape
[15:56] <eroomde> gaffa or death
[15:56] <cuddykid> ahh!
[15:56] <cuddykid> thanks!
[15:57] <jonsowman> eroomde: you pinged me yesterday
[15:57] <cuddykid> once again, your experience has helped tremendously
[15:57] <eroomde> jonsowman: can't rmemeber
[15:57] <eroomde> probs not that important
[15:58] <jonsowman> eroomde: haha ok
[15:59] <jonsowman> eroomde: how are things?
[15:59] <eroomde> v good
[15:59] <eroomde> got a job today
[15:59] <jonsowman> oh nice! where?
[15:59] <eroomde> oxford
[15:59] <jonsowman> working for..?
[16:00] <eroomde> vorticity
[16:00] <jonsowman> oh cool, very nice
[16:01] <jonsowman> when do you start there then?
[16:01] <eroomde> not 100% sure yet
[16:01] <eroomde> july some time
[16:02] <jonsowman> right
[16:02] <jonsowman> well, congrats :)
[16:02] <eroomde> ta
[16:03] <eroomde> how about you?
[16:03] <eroomde> final countdown?
[16:03] <jonsowman> exams start monday..
[16:04] <jonsowman> i sort of want them to start, I can't keep revising for much longer, it'll kill me :P
[16:04] <eroomde> tell me about it
[16:05] <jonsowman> this time next week it'll be over
[16:06] <jonsowman> and I'll be drinking champagne on a punt. or more likely be in the Cam.
[16:06] <jonsowman> so if you're working from July does that mean you're not heading off to France?
[16:07] <eroomde> yep
[16:07] <eroomde> it's a good job :)
[16:08] <jonsowman> yeah definitely
[16:08] <jonsowman> looks very interesting
[16:08] <jonsowman> do you know what you'll be doing when you start? or not yet?
[16:09] <junderwood> eroomde, I don't think it's a secret
[16:09] <jonsowman> oh sorry I didn't realise :)
[16:09] <junderwood> (no - it realy isn't)
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[16:14] <eroomde> jonsowman / junderwood sorry, phone rang
[16:14] <eroomde> yes, I do know!
[16:14] <eroomde> you now how we did SSHADT? Well next it'll be HADT
[16:14] <jonsowman> which was SSHADT?
[16:15] <eroomde> sub-scale high altitude drop testing
[16:15] <jonsowman> oh, cool :D
[16:15] <eroomde> this will be 600kg vehicle in the arctic drop testing
[16:15] <jonsowman> wow
[16:15] <jonsowman> sounds like fun
[16:17] <eroomde> junderwood: did you see/know about this?
[16:17] <eroomde> http://www.bbc.co.uk/iplayer/episode/b0109ccd/Destination_Titan/
[16:18] <junderwood> I have it on DVD - just waiting for a chance to watch it.
[16:18] <eroomde> cool
[16:18] <eroomde> i might crack open a drink and watch it
[16:19] <eroomde> having a quiet night tonigh as iain's stag do is tomorrow
[16:19] <junderwood> I understand it's the Zarnecki and Lorenz show
[16:19] <eroomde> he's dominated the first 1.20secs of it
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[16:20] <eroomde> afk
[16:23] <eroomde> bk
[16:23] <eroomde> anyone watch the copenhagen suborbitals launch?
[16:24] <eroomde> combusions looked really unstable
[16:24] <eroomde> or at least, resonant
[16:24] <eroomde> combustion*
[16:24] <eroomde> if only we knew someone doing a PhD in thermoacoustics to ask
[16:26] <Upu> fsphil still on for tommorrow ?
[16:26] <Upu> afternoon all
[16:28] <Upu> seemed to be pulsing eroomde
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[16:28] <eroomde> Upu: yeah
[16:28] <eroomde> not at all clean
[16:28] <eroomde> well, not stable
[16:29] <Upu> I wouldn't be getting in that
[16:30] <eroomde> no - that kind of thing usually means fatigue to failure in short order
[16:30] <BrainDamage> the failed countdown was hilarious
[16:31] <BrainDamage> and that's why they tested no? to see their equipment working
[16:31] <Laurenceb> Randomskk: ping
[16:33] <eroomde> BrainDamage: or not working
[16:45] <eroomde> Upu: Iain (CUSF member who is doign a PhD in Thermoacousitcs - i.e. combustion instability and resonance) says it looked like a disaster and would knock you unconcious with vibration
[16:46] <eroomde> let alone the parachute deployment
[16:46] <Upu> nice
[16:46] <eroomde> junderwood: take a look at the parachute deployment http://www.youtube.com/watch?v=y2XrbFRqYds
[16:48] <junderwood> time?
[16:48] <Upu> thats not really a deployment
[16:49] <eroomde> junderwood: 2:20
[16:49] <eroomde> onwards
[16:49] <junderwood> Oh dear
[16:49] <eroomde> yes
[16:49] <Upu> is it even attached to the rocket around 4mins ?
[16:50] <junderwood> Not quite sure how they managed to tie it a knot.
[16:50] <junderwood> I can honestly say I've never seen a "parachute" like that in 20 years in the business
[16:52] <eroomde> yes at first i thought it might have failed to de-reef but within two seconds you realise it's just a disaster
[16:52] <SpeedEvil> eroomde: I question that. http://www.youtube.com/watch?v=jTsQxwWcqJI
[16:52] <junderwood> looks like an orange rag deployed at about 1:30 as well. Was that a drogue?
[16:52] <SpeedEvil> Note the guy standing just next to the pulsejet.
[16:53] <eroomde> ah, you mean they guy not in direct contact with it?
[16:53] <cuddykid> haha @ that parachute
[16:53] <cuddykid> should have gone to spherachutes!
[16:55] <Tvilling> The white tangle of parachutes were from the booster rocket. It got torn off of the rocket on deployment.
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[16:56] <Tvilling> the booster isn't recoverable, as it disintegrated upon impact with the ocean.
[16:56] <SpeedEvil> It's a new theory of parachutes - based on the jellyfish.
[16:56] <eroomde> ouch
[16:56] <junderwood> two parachutes?
[16:56] <SpeedEvil> :/
[16:56] <eroomde> but the human-pod is ok?
[16:58] <Tvilling> eroomde: Yes. The Tycho brahe stage has been recovered.
[16:58] <eroomde> well, that's something
[16:59] <eroomde> what kind of parachutes on the man-pod?
[16:59] <Tvilling> It had an orange parachute, so it could be easily identified. :)
[17:00] <Tvilling> Heard some chatter that some of the electronics short-circuited upon recovery (an electrical fire, but can't confirm this).
[17:01] <eroomde> well, sounds like they've got plenty of fun things to work on before the next test
[17:01] <Tvilling> Indeed.
[17:02] <Tvilling> They had to reboot some of the electronics before the LOX/He loading, and the auto sequencer failed to start during the first countdown as well.
[17:03] <Tvilling> The engine pulsated a fair bit, and I suspect (wild speculation on my part) that the burn stopped prematurely because of this.
[17:04] <eroomde> it was certainly not happy
[17:04] <SpeedEvil> Underpressurised tank?
[17:04] <SpeedEvil> Speculation is probably pointless though.
[17:05] <SpeedEvil> At least it looked like 'good' failures though.
[17:05] <SpeedEvil> Lots to learn from.
[17:05] <Tvilling> No. It had 4-5 bars more (IIRC from the radio chatter) overpressure than required.
[17:05] <eroomde> they had the instability in their ground test videos a couple of years ago
[17:05] <Tvilling> SpeedEvil: Indeed.
[17:06] <Tvilling> I'm looking forward to an eventual debrief from the mission. :)
[17:06] <SpeedEvil> :)
[17:13] <fsphil> Upu, yea still a go
[17:14] #highaltitude: mode change '+o jonsowman' by ChanServ!ChanServ@services.
[17:15] Topic changed on #highaltitude by jonsowman!jonsowman@kryten.hexoc.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk - HADIE:3 Launch ~1100BST Sat 04/06/11 from An-Cregan, N. Ireland
[17:15] #highaltitude: mode change '-o jonsowman' by ChanServ!ChanServ@services.
[17:17] <fsphil> hopefully that doesn't become Bill Standard Time
[17:18] <eroomde> that has a resoilution measured in days
[17:21] <fsphil> if we get the payload back, and there's enough helium left, we'll try again on sunday
[17:22] <cuddykid> fsphil: are you using a 1000G balloon?
[17:22] <fsphil> yep yep cuddykid
[17:22] <cuddykid> good stuff!
[17:22] <fsphil> possibly overkill for a 520g payload
[17:23] <cuddykid> hmm.. if you don't inflate it as much, I'm presuming you may get a higher altitude?
[17:23] <fsphil> in theory
[17:23] <cuddykid> hopefully
[17:23] <fsphil> slower ascent though, and it'll be in the air longer
[17:23] <jonsowman> eroomde: any chance you could chase carl for me?
[17:24] <eroomde> sure yep
[17:24] <jonsowman> thanks
[17:25] <jonsowman> fsphil: kaymont?
[17:25] <fsphil> good question
[17:26] <fsphil> Totex I think
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[17:27] <jonsowman> okay
[17:27] <cuddykid> hope the hwoyee is ok for my launch! Remarkably cheaper than the others :)
[17:27] <jonsowman> i wanted to collect some data on the hwoyee balloons to see how well they fit the burst calc model
[17:27] <mattltm-alt> Bit of a long shot but is anyone an expert on DNS servers?
[17:27] <jonsowman> mattltm-alt: ask anyway ;)
[17:28] <fsphil> prediction: http://habhub.org/predict/#!/uuid=3fb98df577f88740bd7a4d1cb152dff6c86d6ad8
[17:28] <cuddykid> jonsowman: I should be launching 1st week of july :)
[17:28] <jonsowman> cuddykid: cool ok
[17:28] <fsphil> haha, sunday is not as ideal as it was this-morning: http://habhub.org/predict/#!/uuid=11124f535ef4201c89a327b00aaa8af2b40697be
[17:28] <mattltm-alt> lol. I'm having problems getting my head around setting up dns for our range of iP addresses.
[17:28] <cuddykid> fsphil: looks great for sat
[17:28] <SpeedEvil> fsphil: Great - looks stable.
[17:29] <mattltm-alt> The dns servers are ns1.domain.com and ns2.domain.com
[17:29] <cuddykid> looks like its bursting over some mountains?
[17:29] <mattltm-alt> www.domain.com A record is on the dns servers..
[17:29] <mattltm-alt> But where is the A record for ns1 & ns2 sotred?
[17:29] <mattltm-alt> *stored.
[17:30] <SpeedEvil> On its DNS servers
[17:30] <mattltm-alt> on its own dns?
[17:30] <fsphil> cuddykid, indeed. better than ocean though
[17:30] <jonsowman> mattltm-alt: are you talking about the GLUE record for the domain name?
[17:30] <mattltm-alt> Ahh, yes the glue.
[17:30] <jonsowman> that is stored at the domain name registrar
[17:31] <mattltm-alt> so as I am the registrar, I should be able to set the GLUE?
[17:31] <jonsowman> it says "when a request matches this domain, go to this nameserver (ns1.domain.com)"
[17:31] <jonsowman> the registrar is the company you registered the domain with
[17:31] <jonsowman> for example, namecheap.com
[17:31] <cuddykid> fsphil: very true
[17:32] <jonsowman> mattltm-alt: you should be able to set the glue records for the domain somewhere in the control panel or whatever
[17:32] <jonsowman> namecheap calls them "nameservers"
[17:32] <jonsowman> rather than glue records
[17:33] <mattltm-alt> I am an opensrs reseller.
[17:33] <jonsowman> ah I see
[17:34] <jonsowman> I can't tell you exactly how to do it then
[17:34] <jonsowman> but in principle, yes, you set the glue record
[17:34] <jonsowman> or records, normally.
[17:34] <mattltm-alt> Thats where I was headding but my tiny brain was starting to hurt!
[17:34] <mattltm-alt> Thanks guys :)
[17:35] <mattltm-alt> Cake all round :)
[17:35] <jonsowman> it took me forever to get my head around DNS
[17:37] <mattltm-alt> I think I have got there. Athough we do have 2048 IP addresses that we need to create PTR recorde for on our DNS servers!
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[17:37] <mattltm-alt> Any volunteers?
[17:38] <junderwood> bash script?
[17:38] <mattltm-alt> Its powerdns with a mysql back end so that maybe the best option.
[17:39] <junderwood> may take longer than typing it all in but it will be alot more interesting
[17:41] <mattltm-alt> junderwood: I'll write the script and you type them in for me.... RACE!!
[17:41] <junderwood> I concede :)
[17:42] <jonsowman> mattltm-alt: does the dns server have an API?
[17:43] <jonsowman> I use linode's DNS servers for all my bits and pieces and their entire control panel has a really nice API in lots of languages
[17:44] <mattltm-alt> Nope.
[17:45] <jonsowman> ah
[17:45] <mattltm-alt> I think I can do a direct csv import to mysql.
[17:45] <mattltm-alt> That should be nice and easy as I already have the ip addresses listed in an excel sheet
[17:45] <mattltm-alt> just need to reverse the ip and stich the ptr bit on the end :)
[17:46] <Dan-K2VOL> whatcha guys working on
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[18:00] <mattltm-alt> Dan-K2VOL: I was stuck going round in circles with DNS and nameserver setup.
[18:00] <mattltm-alt> All sorted now thanks to this great channel :)
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[18:01] <fsphil> anyone know if the live predictor is working?
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[18:24] <Randomskk> Laurenceb: pong?
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[18:26] <MNSP> hello all :)
[18:26] <cuddykid> hi MNSP
[18:26] <Dan-K2VOL> hi
[18:26] <MNSP> whats up guys?
[18:26] <cuddykid> project page update @ http://ukhas.org.uk/projects:habe
[18:27] <Dan-K2VOL> cooll
[18:27] <jonsowman> damn you gnome terminal
[18:27] <MNSP> thats cool cuddykid
[18:28] <cuddykid> RT (like a twitter retweet but an IRC remessage lol) fsphil: anyone know if the live predictor is working?
[18:29] <jonsowman> cuddykid: have you applied to CAA for permission for beginning of July?
[18:29] <cuddykid> Uploaded a few photos too... caution though... you probably have never seen anything as messy/awful in your life!
[18:29] <cuddykid> jonsowman: yeah, applied for it about 2 1/2 months ago!
[18:29] <jonsowman> have you heard anything since?
[18:29] <cuddykid> nope :(
[18:30] <jonsowman> have you tried to contact him?
[18:30] <jonsowman> /them
[18:30] <cuddykid> no, but was planning to do so next week as its getting fairly close now
[18:30] <jonsowman> send an email now
[18:30] <MNSP> I wanted to fly this weekend, but not ready - got shafted at work as its the end of the year and tons of MSc marking has to be done
[18:30] <jonsowman> if you haven't heard anything by mid-next week, phone the AUS
[18:30] <cuddykid> he never responds to my emails :S .. but will do so
[18:30] <cuddykid> ok
[18:31] <cuddykid> :)
[18:31] <Dan-K2VOL> cuddykid what's your sms tracker
[18:32] <cuddykid> Dan-K2VOL: picked one up ages ago off ebay (seems like some chinese made cheap thing), works a treat. Basically just put a sim card in and text it a code and it replies with location
[18:32] <cuddykid> amazingly accurate too
[18:33] <Dan-K2VOL> that's handy, would be nice to see more info on that if you can find a mfr/model number
[18:33] <cuddykid> jonsowman: just checked emails, last year he sent clearance 4 days before launch window! eeek
[18:33] <cuddykid> Dan-K2VOL: will have a look :)
[18:34] <Dan-K2VOL> heh cuddykid that's like the warning we get from the jet stream
[18:34] <cuddykid> lol yeah
[18:35] <cuddykid> its awful! last time I called him, it took him about a week to track down my application under the "mounds of paperwork" lol
[18:36] <jonsowman> cuddykid: he has never responded to me without chasing
[18:36] <jonsowman> and I do this every 6 months
[18:36] <cuddykid> right, I will deffo get onto him
[18:36] <cuddykid> thanks for heads up
[18:37] <MNSP> so this isn't an exception?
[18:37] <MNSP> seems a shame, especially if we want more ppl to take this up
[18:39] <SpeedEvil> It would be nice to make an easy rubber-stamp option.
[18:40] <SpeedEvil> For example - to supply a completed approval that he only needs to stamp or something.
[18:40] <Randomskk> eroomde: it looks like the copenhagen guys manually aborted the burn because of the instability, and the high consequent parachute deployment velocity caused it to fail to open
[18:40] <Randomskk> SpeedEvil: the problem is he needs to actually issue NOTAMs and things
[18:40] <Randomskk> like, the actual notices
[18:41] <SpeedEvil> ah.
[18:41] <Randomskk> which are in NOTAM-ese and need writing, plus need checking with any potential airspace users, see who else has NOTAMs for the area, etc
[18:44] <Dan-K2VOL> sounds like a job for a computer
[18:45] <cuddykid> http://www.chinavasion.com/product_info.php/pName/gps-tracker-with-sms-message/?ref=7520/
[18:45] <cuddykid> Dan-K2VOL: ^ thats the tracker I have
[18:46] <Dan-K2VOL> sad no north america!
[18:46] <Dan-K2VOL> ah well
[18:47] <cuddykid> ahh, didn't realise you were the other side of the pond ;) haha
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[18:49] <MNSP> I'm just using a chep android phone to do that
[18:49] <MNSP> *cheap
[18:50] <Dan-K2VOL> well I'll take that as a compliment cuddkid I suppose :-P
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[18:52] <cuddykid> where abouts in the US are you based?
[18:52] <Dan-K2VOL> Louisville KY, the midwest
[18:52] <cuddykid> nice, bet you've had some of those awful tornados we've heard lots about on the news over here
[18:52] <Dan-K2VOL> well, it's really the mideast, but it's named poorly
[18:53] <Dan-K2VOL> why yes, I've spent several evenings huddled in the basement this spring waiting for the house or hackerspace to collapse :-)
[18:53] <cuddykid> :O
[18:53] <cuddykid> how awful
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[18:53] <Dan-K2VOL> not fun, but I suppose there's dangers wherever you live
[18:54] <Dan-K2VOL> scorpions in your bed in the desert
[18:54] <cuddykid> yeah
[18:54] <Dan-K2VOL> cyclones and hurricanes in the tropics
[18:54] <cuddykid> ecoli in europe -_-
[18:54] <Dan-K2VOL> yikes
[18:54] <Laurenceb_> sharks and lasers
[18:54] <jonsowman> >.>
[18:54] <Randomskk> the e coli is like
[18:54] <Randomskk> oh no
[18:54] <Randomskk> eleven people have food poisoning
[18:54] <Randomskk> stop the press
[18:54] <jonsowman> sharks and lasers are a big problem in cambridge
[18:54] <cuddykid> lol
[18:55] <Randomskk> sharks with lasers is a much bigger issue
[18:55] <Randomskk> there were like, three deaths in the cam just outside my window while I was working today
[18:55] <jonsowman> oh that's much worse, yes
[18:55] <Randomskk> they just grab the unsuspecting tourists
[18:55] <Randomskk> it's kinda amusing at first
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[18:55] Action: Laurenceb_ has smt32 running at 72mhz with pll of external xtal
[18:55] <Randomskk> yay
[18:55] <Laurenceb_> 12mhz xtal solve dit
[18:55] <Dan-K2VOL> I can't believe they've spread as far as CU, it's terrifying
[18:55] <Randomskk> Laurenceb_: ah cool
[18:55] <Laurenceb_> i also had to change the HSE_Value in the stm32f10x header
[18:56] <Randomskk> yea makes sense
[18:56] <Laurenceb_> its defined in there for some daft reason
[18:56] <Randomskk> and in the makefile?
[18:56] <Laurenceb_> yes
[18:56] <Randomskk> it should be in the makefile where it should override the stm32f10x header really
[18:56] <eroomde> is there e.coli in cambridge or sharks with lasers?
[18:56] <Laurenceb_> i knew about the makefile :P
[18:56] <Randomskk> I dunno
[18:56] <eroomde> i am confused
[18:56] <cuddykid> 5 weeks or so will I'm in the states Dan-K2VOL
[18:56] <eroomde> Randomskk: I am now employed!
[18:56] <Randomskk> eroomde: first one, now the sharks have e coli too
[18:56] <Randomskk> eroomde: I saw! congrats!
[18:56] <Randomskk> though shame the france plans are no more :P
[18:56] <Randomskk> sounds great though
[18:56] <Laurenceb_> Randomskk: for some reason the header overwrites my makefile
[18:56] <Dan-K2VOL> really cuddykid, where are you going
[18:56] <Laurenceb_> but it works now *shrug*
[18:57] <cuddykid> Dan-K2VOL: can't wait, however, I bet you can guess where I'm off lol
[18:57] <cuddykid> take a guess ;)
[18:57] <Dan-K2VOL> congrats eroomde
[18:57] <Dan-K2VOL> DisneyLand?
[18:57] <eroomde> they might just be delayed. but we will see. there are alternative ways of living in france, won't say any more when my employer is also on the channel!
[18:57] <Randomskk> hehe
[18:57] <cuddykid> indeed haha
[18:57] <Laurenceb_> eroomde: arent you doing a PhD?
[18:57] <Dan-K2VOL> eroomde, you didn't snag that CNES payload setup job did you
[18:58] <Dan-K2VOL> I have been eyeing that!
[18:58] <eroomde> Dan-K2VOL: for the next year at least, testing the mars lander parachutes
[18:58] <eroomde> actually with CNES
[18:58] <Dan-K2VOL> very cool!
[18:58] <eroomde> they're providing the balloon
[18:58] <Dan-K2VOL> congrats indeed!
[18:58] <eroomde> we're designing and making and taking up a 600kg drop vehicle
[18:58] <eroomde> to the arctic
[18:58] <Dan-K2VOL> Kiruna?
[18:58] <cuddykid> Dan-K2VOL: went to California last year (not disney though) - did SB, LA etc.. loved it! However, back to FL this year for the hot weather :P haha
[18:59] <eroomde> then dropping it back in and testing the full-size ExoMars parachute system
[18:59] <Dan-K2VOL> Ah FL it will be damn hot soon!
[18:59] <eroomde> Dan-K2VOL: yep, Kiruna
[18:59] <Laurenceb_> eroomde: who is the job with?
[18:59] <eroomde> Vorticity Systems
[18:59] <Dan-K2VOL> well, if you're interested in a 20 hour drive, come on up to Louisville for a visit :-)
[18:59] <eroomde> them who did Huygens among other things
[18:59] <Laurenceb_> oh yeah
[18:59] <Laurenceb_> nice :D
[18:59] <Dan-K2VOL> nice!
[18:59] <Dan-K2VOL> very exciting ed
[18:59] <Laurenceb_> are you still doing a PhD?
[18:59] <eroomde> i am very excited!
[19:00] <eroomde> Laurenceb_: not for now
[19:00] <Tvilling> http://www.bt.dk/danmark/saa-hoejt-naaede-raketten <- We've got confirmation on how high the danes went: 2,8 km.
[19:00] <cuddykid> haha, I would if I had the time Dan-K2VOL! .. really want to do a big road trip when I'm older!
[19:00] <eroomde> this is a doesnt-happen-very-ofetn-so-reaggrage-plans project
[19:00] <Laurenceb_> eroomde: yeah I can unserstand
[19:00] <Laurenceb_> bah spelling
[19:00] <eroomde> and who knows what after
[19:00] <Randomskk> Tvilling: they cut it manually there apparently due to the instability
[19:00] <Randomskk> which is apparently also why the parachutes failed to deploy: velocity still too high
[19:01] <Laurenceb_> thats not very high
[19:01] <Randomskk> or rather, they stopped the burn because the unstable trajectory was going off-range
[19:01] <Laurenceb_> lol
[19:01] <Laurenceb_> never saw that happening
[19:01] <Dan-K2VOL> haha guys, what did I say my guess was for the rocket's max alt?
[19:02] <Tvilling> Randomskk: Are you guessing, or do you have sources or those accusations?
[19:02] <Tvilling> for*
[19:02] <Dan-K2VOL> I guessed around 10,000 ft
[19:03] <Randomskk> http://science.slashdot.org/comments.pl?sid=2209750&cid=36332124
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[19:04] <Randomskk> Tvilling: worse than guessing: slashdot comments!
[19:05] <Laurenceb_> they had some thrust oscillation there
[19:06] <Tvilling> Randomskk: I suggest you read this article instead: http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=da&tl=en&u=http%3A%2F%2Fing.dk%2Fartikel%2F119777-raketten-floej-styrtede-og-samlede-vaerdifuld-data-ind
[19:06] <Tvilling> :)
[19:07] <Tvilling> It's actually got backed facts about what happend.
[19:08] <Randomskk> in somewhat broken translation the article appears to say the rocket was going too far sideways so the launch was aborted, the parachutes then broke because they were opened at too high a velocity compared to the design for the top of the normal parabola trajectory
[19:08] <Randomskk> in other words, what the slashdot comment said
[19:08] <Laurenceb_> wonder if they can recover it
[19:08] <Randomskk> "But it flew more sideways than expected " "burned for 21 seconds before it was extinguished" "Normally they are released soon after they reach the apex of orbit, but it did not happen here. Instead, they were fired while the rocket was coming down and flew at a speed close to supersonic. "
[19:09] <Upu> anyone who can clear the tracker down ready for Hadie tommorrow ?
[19:09] <jonsowman> yeah sure
[19:09] <Upu> evening btw
[19:10] <fsphil> thanks
[19:10] <Randomskk> Tvilling: that article just confirms everything in the slashdot comment?
[19:10] <jonsowman> cleare
[19:10] <Upu> still good for tommorrow fsphil ?
[19:10] <jonsowman> d
[19:10] <Upu> cheers
[19:10] <fsphil> indeedy
[19:10] <Laurenceb_> but did they recover it?
[19:10] <m0lep> Good luck with it, fsphil.
[19:10] <fsphil> thanks m0lep!
[19:10] <fsphil> third time lucky :)
[19:11] <Randomskk> Laurenceb_: parts
[19:11] <Randomskk> it disintegrated when it hit the sea at speed
[19:11] <Laurenceb_> bit of a waste really - anyone could have predicted this would happen
[19:11] <Randomskk> apparently
[19:11] <Laurenceb_> :/
[19:11] <Randomskk> well, some of it did
[19:11] <Randomskk> I think the human capsule part was relatively okay
[19:11] <Laurenceb_> but thats the easy bit
[19:11] <Laurenceb_> they need guidance ffs
[19:11] <Randomskk> yea, the next launch will have active stabalisation apparently
[19:11] <Dan-K2VOL> I'm quite impressed :-) not bad for their first full scale liquid rocket, spacex did about the same
[19:11] <jonsowman> fsphil: updated tracker title etc too
[19:11] <Laurenceb_> good
[19:12] <Upu> latest prediction ?
[19:12] <Dan-K2VOL> any word on why aprs failed to track the rocket?
[19:13] <fsphil> jonsowman, it is a kaymont balloon
[19:14] <jonsowman> fsphil: ok thanks
[19:14] <fsphil> I think the new one is totex
[19:14] <fsphil> or is totex and kaymont the same thing?
[19:14] <jonsowman> totex is japanese I think
[19:16] <Laurenceb_> Randomskk: is there a clk defined in the i2c driver?
[19:16] <Laurenceb_> my i2c is now broken, but i found uint32_t pclk1 = 8000000;
[19:16] <Randomskk> that's weird. I don't know.
[19:16] <Laurenceb_> in the i2c_init code
[19:16] <Randomskk> scopes are very useful here
[19:17] <Laurenceb_> yes
[19:18] <Dan-K2VOL> underwood
[19:18] <junderwood> Dan-K2VOL, me?
[19:21] <Tvilling> Randomskk: You mentioned that the chutes failed to deploy. They did deploy on the HEAT-1X, but shredded off due to the speed the booster stage had during deployment. Some of them also did deploy sucessfully on the Tycho Brahe, but failed due to the high relative wind speeds. One chute managed to deploy partly during the crafts decent, however, and slowed its descent speed enough to keep it in one piece during the impact with the water ...
[19:21] <Tvilling> ... surface.
[19:21] <Randomskk> I guess I meant deploy as in open
[19:22] <Randomskk> I did say open the first time
[19:23] <Tvilling> That's what the dainish article describes. :)
[19:24] <Randomskk> okay
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[19:59] <Laurenceb_> ah fixed
[20:00] <Laurenceb_> was trying to generate two starts
[20:00] <Laurenceb_> for some bizzare reason it worked ok before
[20:16] <fsphil> anyone spotted this?
[20:16] <fsphil> dl_fldigi: begin download attempt...
[20:16] <fsphil> dl_fldigi: flock cache file: Resource temporarily unavailable
[20:16] <fsphil> when downloading payload data
[20:17] <fsphil> I can't download it manually either
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[20:23] <griffonbot> Received email: Mission Excelsior "Re: [UKHAS] hadie:3 launch this weekend (again)"
[20:23] <jonsowman> ^^ ?!
[20:23] <cuddykid> LOL!
[20:25] <fsphil> lol
[20:26] <fsphil> He's from the *future!*
[20:37] <Hibby> call me controversial.... but I'm quite enjoying gnome 3.
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[20:40] <fsphil> I'm a bit *meh*
[20:40] <fsphil> I miss the task bar
[20:42] Hiena (~boreger@ left irc: Remote host closed the connection
[20:43] <Hibby> most of my work is terminal, alt-f2 and alt-tab, so i quite like the efficient use of space
[20:43] <Hibby> far better than unity for me
[20:43] MNSP (~Mitul@cpc1-lutn3-0-0-cust700.9-3.cable.virginmedia.com) joined #highaltitude.
[20:43] <MNSP> Evening all :)
[20:44] <Hibby> o/
[20:44] <fsphil> yoyo :)
[20:44] <mattltm> Hi all :)
[20:45] <Upu> evening mattltm
[20:47] fsphil-laptop (~phil@2001:8b0:34:1:219:d2ff:fe09:a6b9) joined #highaltitude.
[20:50] <mattltm> My brain still hurts
[20:51] <fsphil-laptop> dns'll do that to you :)
[20:51] <MNSP> was g;ad to see your email fsphil
[20:51] <fsphil-laptop> me too ;)
[20:51] <fsphil-laptop> been a long delay
[20:52] <mattltm> Im stuck on PTR records now :(
[20:52] <MNSP> well you were just waiting for right conditions
[20:53] <fsphil-laptop> still looking good: http://habhub.org/predict/#!/uuid=3fb98df577f88740bd7a4d1cb152dff6c86d6ad8
[20:54] <MNSP> looks tasty
[20:54] <SpeedEvil> http://dl.dropbox.com/u/946960/dealextreme/sku.666.htm
[20:54] <SpeedEvil> :)
[20:54] <MNSP> compared to wen it was landing in the sea half way between you and Hibby
[20:55] <fsphil-laptop> yea, scotland and yorkshire seem to be easiest targets from here :)
[20:55] <MNSP> I'll have 3 Speedevil, if you're ptting in an order
[20:56] <SpeedEvil> fsphil: I've said - if you can get it within 3 miles of glenrothes, I'll collect it. :)
[20:56] <jonsowman> SKU: 666 -- nice
[20:56] <MNSP> LOL, did you read the instructions?
[20:56] <Upu> haha
[20:57] <fsphil-laptop> 3 miles is asking a bit much, I can't even be sure what country it'll land in :)
[20:57] <jonsowman> Usage instructions: Do not aim at face
[20:57] <jonsowman> I see
[20:57] <fsphil-laptop> lol
[20:58] <MNSP> well it is good advice i suppose
[20:58] <fsphil-laptop> I wonder what dave would say if you tried getting a notam for that
[20:59] <jonsowman> you definitely don't want a 300KT missile in the face, no
[20:59] <MNSP> LOL
[20:59] <jonsowman> that kind of thing can really ruin your day
[20:59] <jonsowman> oh god, "Buy 3+ and Save"
[20:59] <MNSP> but seeing the hello kitty would make you smile just before
[20:59] <jonsowman> i think the big firey explodey rocket would catch my attention first
[21:00] <Randomskk> firey explody rockets are a bit sad times
[21:00] <MNSP> Clicky on/off secondary switch on the side
[21:00] <jonsowman> especially when you aim them at your face
[21:00] <MNSP> ... See thats what I was talking about the other day
[21:00] <Randomskk> maybe you'd become spiderman or something
[21:01] <MNSP> Wanna try randomskk?
[21:01] <Randomskk> sure, you buy it, I'll stand in the way
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[21:03] <MNSP> Well he does include a carrying case and a lithim battery... So I'm tempted, but maybe I should concentrate on my HAB first
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[21:05] <fsphil-laptop> hmm.. laptop can't download payload list either
[21:05] <Randomskk> what url does it hit?
[21:06] <fsphil> I think http://www.robertharrison.org/listen/allpayloads.php
[21:06] <Randomskk> well that appears to work..?
[21:06] <fsphil-laptop> works on my server too
[21:06] <fsphil-laptop> weird
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[21:13] <jcoxon> oooo they launched!
[21:13] <fsphil-laptop> they did indeed
[21:13] <jcoxon> wow
[21:14] <fsphil-laptop> nearly didn't - went on the second attempt
[21:17] <mattltm> Agh! Why am I finding reverse DNS so hard!!
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[21:22] <griffonbot> Received email: Philip Heron "Re: [UKHAS] hadie:3 launch this weekend (again)"
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[21:26] <Lunar_Lander> hello
[21:26] <Lunar_Lander> The Danish did IT: http://www.copenhagensuborbitals.com
[21:30] <Laurenceb_> kind of
[21:30] <Laurenceb_> i guess it could have gone worse
[21:31] <Randomskk> boring worse: nothing happened
[21:31] <Randomskk> exciting worse: massive explosion
[21:31] <Laurenceb_> pity the booster was fairly destroyed
[21:38] <Lunar_Lander> http://www.youtube.com/watch?v=y2XrbFRqYds&feature=player_embedded
[21:38] <Lunar_Lander> the parachutes failed I think
[21:51] <fsphil> don't use batteries from B+M's, they always seem to melt
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[22:01] <Tvilling> Randomskk: Like what happend with their XLR-3 test engine? ;)
[22:01] <Tvilling> http://www.youtube.com/watch?v=SuNuks05sS0
[22:02] <Randomskk> hah indeed
[22:02] <Lunar_Lander> xD
[22:02] <BrainDamage> reminds me of one of my attempts of building a turbine engine
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[22:11] <fsphil> I always get nervous talking to the air traffic control, no idea why
[22:11] <Randomskk> haha but they're so friendly
[22:11] <Randomskk> and don't care all that much either
[22:11] <fsphil> indeed
[22:11] <fsphil> just asked that I phone an hour before to make sure
[22:12] <Randomskk> I once got so distracted I said "hi, we're about to launch a balloon, just wanted to check that's cool with you"
[22:12] <Lunar_Lander> xD
[22:12] <Randomskk> literally
[22:12] <fsphil> lol
[22:12] <Randomskk> I realised a few seconds later that maybe that was too casual
[22:12] <Randomskk> however they were cool with it
[22:12] <SpeedEvil> :)
[22:12] <fsphil> they probably welcomed the change :)
[22:13] <Randomskk> hah I hope so
[22:13] <fsphil> was hoping to try out the funcube dongle but I can't get wine working on Fedora 15
[22:15] <Laurenceb_> cases in c swtich, do they have to be consecutive?
[22:15] <Randomskk> consecutive?
[22:15] <Randomskk> just remember to break
[22:15] <Randomskk> they don't have to be ordered if that's what you mean
[22:15] <Laurenceb_> sorry yeah ordered
[22:15] <Laurenceb_> cool
[22:15] <Laurenceb_> this is becomming way harder than i planned :S
[22:15] <Randomskk> :P
[22:16] <Randomskk> your random-state IMU calibration?
[22:16] <Laurenceb_> hopefully ill have ekf running
[22:16] <Randomskk> or the whole thing?
[22:16] <Laurenceb_> oh finished with that
[22:16] <Laurenceb_> yeah moved back to stm32
[22:16] <Laurenceb_> im going with bias and gain cal only
[22:16] <SpeedEvil> :)
[22:17] <Laurenceb_> i got the random position thing to work, but it only slightly helps
[22:17] <Randomskk> your adventures have made me realise I don't even know close to enough to do much of anything with the quadcopter just yet
[22:17] <Laurenceb_> i think the sensors are quite nonlinear
[22:17] <Randomskk> as far as control goes, anyway
[22:17] <SpeedEvil> Randomskk: Well - ...
[22:17] <Laurenceb_> - compared to the cross axis ness
[22:17] <SpeedEvil> Randomskk: It depends.
[22:17] <Laurenceb_> its all <1%
[22:17] <Randomskk> SpeedEvil: not that I'd let it stop me getting hardware ready, and I'm still working on the motor controller right now
[22:17] <SpeedEvil> Randomskk: You probably actually don't care about what Laurenceb is bothering about.
[22:17] <SpeedEvil> He's wierd.
[22:17] <Laurenceb_> lmao
[22:17] <Randomskk> SpeedEvil: plus I am doing courses in control theory next year anyway :P
[22:17] <SpeedEvil> But the accuracy possible is cool.
[22:18] <SpeedEvil> If you don't need to get to the last order of magnitude, this stuff gets a _lot_ easier.
[22:18] <Laurenceb_> Geckosenator got good results using off axis and nonlinearity
[22:18] <Laurenceb_> but he used about 50 to 60 test points
[22:18] <Randomskk> to be honest
[22:18] <jcoxon> fsphil, good luck with the launch tomorrow - sadly working or will climb up a hill and try and track
[22:18] <jcoxon> will -> would
[22:18] <Randomskk> I've seen people get things flying using no sensor fusion and just P control
[22:19] <Randomskk> maybe some I action on the gyros
[22:19] <Laurenceb_> i have servo headers populated and 26pc01smt sensor mounted now XD
[22:19] <SpeedEvil> Randomskk: yeah - gyros are - almost - all you need.
[22:19] <Laurenceb_> might try some pitot experiments
[22:19] <Randomskk> SpeedEvil: for flight-assist when human controlled anyway :P
[22:19] <Randomskk> I have ambitions
[22:19] <SpeedEvil> Indeed.
[22:19] <Laurenceb_> that thing costs more than the entire imu O_o
[22:19] <Randomskk> I'd really like to get the base quadcopter to the point where I can happily knock out a small quantity of them
[22:20] <Randomskk> then do a fourth year project in swarm control
[22:20] <SpeedEvil> Laurenceb: Did you see the link to the 6-hole pitot thingy on the flying turbine?
[22:20] <Randomskk> Laurenceb_: it's like, $30 each?
[22:21] <Laurenceb_> yes
[22:22] <Laurenceb_> SpeedEvil: no
[22:22] <Randomskk> the rest of the imu is <$30?
[22:22] <Laurenceb_> yes
[22:22] <Laurenceb_> just
[22:22] <Randomskk> wow
[22:22] <SpeedEvil> You mean the sensors
[22:22] <Laurenceb_> i spent ages on pitot tubes
[22:22] <Laurenceb_> yes sensors
[22:22] <Randomskk> right
[22:22] <Laurenceb_> was really planning for a hot resisotr one
[22:22] <Laurenceb_> but then i saw some mil stuff with 26pc01smt
[22:23] <fsphil> jcoxon, thanks! hopefully be an uneventful flight this time :)
[22:23] <Laurenceb_> and looked at the noise and it was marginally better at the low airspeeds im interested in
[22:23] <Randomskk> honeywell do sexy sensors
[22:23] <Laurenceb_> - with the ltc2481 as i2c interface
[22:23] <Laurenceb_> just two parts XD
[22:23] <SpeedEvil> I do wonder when dome 'second world' army is going to realise that guided rounds just got a lot cheaper.
[22:24] <jcoxon> fsphil, hopefully you'll have lots of listeners and therefore lots of images
[22:24] <SpeedEvil> fsphil: Oooh - this is an image flight?
[22:24] <SpeedEvil> Cool.
[22:24] <Randomskk> I wonder at what point my knowledge becomes illegal to export
[22:24] <Randomskk> I hope they tell us in lectures :P
[22:24] <fsphil> jcoxon, there's a few amateurs coming from the local radio club so hopefully they bring laptops and SSB receivers :)
[22:24] <fsphil> SpeedEvil, tis indeed
[22:24] <fsphil> well, very small images
[22:24] <SpeedEvil> :)
[22:25] <Laurenceb_> 26pc01smt is used in a few usaf man launched drones
[22:25] <Laurenceb_> for pitot
[22:25] <BrainDamage> the tube is that pricey? 30$?
[22:25] <BrainDamage> for a simple piece of metal/plastic?
[22:25] <Laurenceb_> sensor
[22:25] <SpeedEvil> Of course - you know that man-launched drones are for xmas 2014.
[22:25] <BrainDamage> ah
[22:25] <SpeedEvil> For ages 8 and up.
[22:25] <Upu> I've mailed my local radio club too fsphil
[22:25] <BrainDamage> got a link anyway? I'm kinda curious
[22:26] <fsphil> ooh nice one Upu, they should be well placed
[22:27] <Upu> well if any of them try it
[22:27] <Upu> they are an old bunch
[22:27] <fsphil> lol
[22:28] <Laurenceb_> http://parts.digikey.com/1/parts/950516-sensor-smd-1psi-differential-26pc01smt.html
[22:28] <BrainDamage> thanks
[22:29] <SpeedEvil> Does anyone happen to have come across a cheap CO2, or O2 sensor, suitable for measuring expired Oxygen or CO2 quantitively?
[22:29] <jcoxon> hmmm here is a question
[22:30] <jcoxon> do you have to have a full licence to say use a radiometrix module on 2m?
[22:30] <jcoxon> (obviously not in the air)
[22:30] <fsphil> intermediate or better iirc
[22:31] <fsphil> only foundation can't make their own gear
[22:31] <fsphil> make == use
[22:31] <Upu> technically its prebuilt ?
[22:31] <fsphil> you have to solder it to something though
[22:31] <Upu> fair
[22:31] <Randomskk> most importantly an antenna
[22:31] <Randomskk> hmm though
[22:31] <Randomskk> does that mean you also must transmit your callsign?
[22:31] <Upu> intermediate isn't that hard
[22:32] <fsphil> yea Randomskk
[22:32] <Randomskk> I mean, it does if operation must be under an amateur licnese
[22:32] <Randomskk> license, even
[22:32] <jcoxon> okeydokey
[22:32] <jcoxon> good to know
[22:33] <fsphil> though - I think a foundation user could operate something built by an intermediate or better user
[22:33] <Randomskk> so uhm
[22:33] <Randomskk> radiometrix say "available for license-excempt operation in the UK 173MHz bands"
[22:34] <Randomskk> 173mhz is one of the harmonised standards
[22:34] <Randomskk> do they do a 14x mhz?
[22:35] <Randomskk> I can only find 73x and 17x mhz transmitters, nothing on amateur 2m
[22:35] <fsphil> they have a 144.8 mhz module
[22:35] <fsphil> they'll make one for any other amateur frequency but it'll cost a few hundred :)
[22:35] <Randomskk> what's it called?
[22:35] <fsphil> I asked about a 144.7 mhz version a few weeks ago
[22:36] <fsphil> it's an NRX1
[22:36] <fsphil> or NTX1
[22:36] <fsphil> they don't advertise the frequency though
[22:36] <fsphil> gotta ask them
[22:37] <fsphil> seen a few people use them for aprs
[22:37] <jcoxon> night all, fsphil good luck?
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[22:43] <Lunar_Lander> yeah good luck fsphil !
[22:44] <Lunar_Lander> BBL
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[22:50] <fsphil> thanks Lunar_Lander
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[23:24] <SpeedEvil> Interesting.
[23:24] <SpeedEvil> http://www.ebuyer.com/product/248896
[23:24] <SpeedEvil> A reasonably rated (see the reviews) tablet for under a hundred quid.
[23:24] <SpeedEvil> From a vendor in the UK you can actually send it back if you don't like it.
[23:26] <fsphil> woo, found radio cover
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[00:00] --- Sat Jun 4 2011