highaltitude.log.20110819

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[06:09] <earthshine> o/
[06:20] <natrium42> \o
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[07:21] <eroomde> \oo/
[07:21] <eroomde> Y
[07:21] <eroomde> fail
[07:31] <number10> morning
[07:33] <number10> eroomde - I saw you and Randomskk talking about Japanese food - If you get the chance try Japas in Cambridge - Is run by chinesse but very good
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[07:48] <eroomde> number10: where is it?
[07:48] <Darkside> See
[07:48] <Darkside> a selection of student projects including: a glider
[07:48] <Darkside>  ight simulator; a small wind turbine; and a radio
[07:48] <Darkside> telemetry system for transmitting video images
[07:48] <Darkside> from a balloon
[07:48] <Darkside> ack
[07:48] <Darkside> why does the uni's marketing department always get it wrong
[07:48] <Darkside> we never transmitted video images
[07:49] <Darkside> ugh
[07:49] <number10> saxon street http://www.japassushi.co.uk/index.html eroodme
[07:50] <number10> eroomde(
[07:51] <eroomde> ta
[07:51] <eroomde> oh ok
[07:52] <eroomde> just bhind snug
[07:52] <eroomde> behind*
[07:52] <Darkside> oh great... theres a picture of me in this years open day flyer
[07:52] <Darkside> fuuuuuuuu
[07:52] <number10> cant type this morning - used to be a pub
[07:52] <eroomde> and bento box place
[07:52] <Darkside> http://www.adelaide.edu.au/openday2011/open-day-program.pdf
[07:52] <number10> the website is a bit naff but the food is good
[07:52] <eroomde> cool
[07:52] <eroomde> i shall try it
[07:53] <eroomde> you tell me this as soon as i leave cam :)
[07:53] <eroomde> i get the keys to my ox house today!
[07:53] <eroomde> which is exciting
[07:53] <eroomde> number10: are you going to come to the launch tomorrow?
[07:57] <number10> well you can visit Randomskk and go there - not sure if I can convince my wife to go to the launch - I think she wanted to go out for the day eroomde
[07:58] <number10> is it from EARS?
[07:58] <SamSIlver> Darkside: what page are you on?
[07:58] <Darkside> uhmm
[07:59] <Darkside> 17
[07:59] <eroomde> number10: churchill
[07:59] <Darkside> one page after where it should be
[08:00] <Darkside> i'm the guy on the left, leaning on the front of the simulator
[08:00] <SamSIlver> I wanted to show my wife
[08:00] <Darkside> >_>
[08:01] <SamSIlver> well she wanted see see funny like that
[08:01] <SamSIlver> when do you get to use the hot glue gun?
[08:02] <Darkside> i already have
[08:02] <Darkside> the payload is complete
[08:02] <eroomde> Darkside: does ad have a solar challenge team?
[08:02] <Darkside> http://rfhead.net/?p=356
[08:03] <Darkside> eroomde: i think so
[08:03] <Darkside> its run by mech eng tho, not elec eng
[08:03] <eroomde> they seem to be bad at electronics, those teams
[08:04] <eroomde> lots of black blox telelmetry units that they can't get to work
[08:04] <eroomde> the cam team ended up running an ethernet cable between the solar car and the support car running alongside
[08:08] <number10> where abouts is new house eroomde
[08:09] <Darkside> LOL eroomde
[08:09] <eroomde> number10: osney island
[08:09] <Darkside> ok shower time, back in a bit
[08:10] <eroomde> http://en.wikipedia.org/wiki/Osney
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[08:14] <number10> nice eroomde
[08:17] <eroomde> for once i have a short postal address, which is nice
[08:18] <eroomde> ed, 44 bridge street, oxford
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[08:30] <Darkside> A completed Tax Exception Form is required.
[08:30] <Darkside> NOOOOOOOOOOOO
[08:30] <Darkside> FFS
[08:30] <Darkside> shitshitshit
[08:30] <Darkside> eroomde: Randomskk i need a GPS ASAP
[08:30] <Darkside> *anyone*
[08:31] <number10> sorry m8 dont have one
[08:31] <Darkside> eroomde: its at stansted :(
[08:31] <Darkside> FFS
[08:32] <Darkside> so now I have no GPS module
[08:33] <Darkside> ok i'm heading into uni will be back online in half an hour
[08:33] <Darkside> if anyone has a GPS module we can pick up on the way to cambridge, please let me know!
[08:33] <Darkside> ANYTHING that will work above 60000ft
[08:33] <Darkside> even if it is a (ugh) Lassen IQ...
[08:33] <eroomde> Darkside: i'm sure we have something
[08:33] <eroomde> at cusf
[08:34] <Darkside> eroomde: worst case couldn't we stick a badgetcub in there?
[08:34] <eroomde> i think we probably have 10 things infact
[08:34] <Darkside> badger*
[08:34] <Darkside> and have it run at 434.075?
[08:34] <eroomde> ask Randomskk or jonsowman - they are cusf now :)
[08:34] <Darkside> we'd then need to decode 2 strams of data
[08:34] <Darkside> eroomde: got phone numbers
[08:34] <eroomde> we could probably check a ferret on
[08:34] <Darkside> eroomde: can you PM me Randomskk or jonsowman 's phone numbers
[08:34] <eroomde> coming up
[08:35] <Darkside> thx
[08:35] <eroomde> bbiab
[08:39] <Randomskk> hi
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[08:39] <Darkside> hey
[08:40] <Darkside> just getting a pic uploaded so you can see
[08:40] <Darkside> http://i.imgur.com/kSgXn.jpg
[08:41] <Darkside> ok thats how i've got it connected
[08:41] <Darkside> just getting the pinout
[08:42] <Darkside> http://pastebin.com/P3G2zAdW
[08:44] <Darkside> ok i've gotta get to uni, will be back online a bit later
[08:44] <Randomskk> okay. I'm sure we can sort something out
[08:44] <Randomskk> that mega sucks that it didn't get delivered though, what the heck.
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[08:44] <Darkside> yeah
[08:44] <Darkside> its sitting at stanstead
[08:44] <Randomskk> :|
[08:45] <Darkside> http://www.fedex.com/Tracking?action=track&tracknumbers=790244045096
[08:45] <Darkside> anyway, gtg, back on in a bit
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[09:31] <Darkside> Randomskk: any progress?
[09:31] <Randomskk> so
[09:32] <Randomskk> it looks like it shouldn't be an issue. I think we have female crimp headers in the lab anyway
[09:32] <Randomskk> but I'm not at cambridge right now
[09:32] <Randomskk> and my electronics stuff is quite packed up
[09:32] <Randomskk> I think easiest will be to solder it up tomorrow morning or something
[09:32] <Darkside> jon is heading down to cambridge tonight?
[09:32] <Randomskk> tomorrow morning, I think
[09:32] <Darkside> but yeah, we can always do it in the morning if we have to
[09:32] <Darkside> do you have any other payloads we can drop in if we need to?
[09:32] <Randomskk> it "shouldn't" take long
[09:33] <Randomskk> maybe
[09:33] <Darkside> say, a badger cub transmittong on 434.075?
[09:33] <Randomskk> not sure if any are working atm
[09:33] <Darkside> ahh ok
[09:33] <Darkside> ferret?
[09:33] <Randomskk> yea, ferret was what I was thinking
[09:33] <Darkside> how big is a ferret?
[09:33] <Randomskk> but it's +weight
[09:33] <Randomskk> bigish. like an arduino plus a shield plus batteries plus box
[09:33] <Darkside> ahh shit
[09:34] <Randomskk> yea
[09:34] <Darkside> well my payload is at 150g atm
[09:34] <Randomskk> I'm sure we can get a GPS working
[09:34] <Darkside> i'm about to go check that properly
[09:34] <Darkside> yeah
[09:34] <Randomskk> I'm really surprised at fedex tbh :/
[09:34] <Randomskk> it's weird though
[09:34] <Darkside> i've given them a call
[09:34] <Darkside> nah i know why
[09:34] <Randomskk> a tax excemption certificate?
[09:34] <Darkside> normally unis have vat exceptions
[09:34] <Darkside> so they held it waiting for it
[09:34] <Darkside> theyr'e gonna get back to me with the amount i need to pay
[09:35] <Randomskk> I see, ugh :/
[09:36] <Randomskk> wonder if you could pick it up from stansted :P
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[09:39] <rjharrison> Hi RocketBoy
[09:39] <RocketBoy> hey
[09:39] <RocketBoy> rjharrison:
[09:40] <Darkside> Randomskk: maybe..
[09:41] <Randomskk> anyway really, I'm sure we can hack something together in the cusf lab tomorrow morning
[09:41] <Randomskk> just give a few extra minutes time budgeting
[09:41] <Randomskk> if it comes to it we can just solder onto your pin header
[09:41] <rjharrison> Boo
[09:41] <Randomskk> :P
[09:41] <Randomskk> I think we have suitable female headers though
[09:41] <rjharrison> ping RocketBoy
[09:42] <RocketBoy> pong
[09:42] <RocketBoy> rjharrison:
[09:43] <rjharrison> Hi Steve
[09:43] <RocketBoy> hi
[09:43] <RocketBoy> hows life?
[09:43] <rjharrison> Cool
[09:44] <rjharrison> Just getting ready for holiday
[09:44] <RocketBoy> woo - hols - anywhere nice?
[09:44] <rjharrison> France for 2 weeks Toulouise
[09:46] <RocketBoy> oh - right - driving down?
[09:46] <RocketBoy> tour?
[09:46] <rjharrison> Flying with kids
[09:47] <RocketBoy> yeah - kids in the car all that way - not my idea of fun
[09:49] <RocketBoy> just playing with some FSA03s at the moment - wondering where to glue them so they don't break
[09:49] <Randomskk> encase the entire thing in epoxy? :P
[09:49] <Randomskk> at cusf we epoxyd a blob aroundwhere the antenna meets the pcb, both sides
[09:49] <RocketBoy> yeah - its an option
[09:51] <RocketBoy> I was wondring if a drop of superglue would suck itself between the pcb and the antenna plasic on the back - or might try some thin epoxy
[09:51] <RocketBoy> Randomskk: so that fixed it for you guys?
[09:52] <RocketBoy> (the epoxy)
[09:52] <griffonbot> Received email: Anthony Stirk "[UKHAS] UKHAS Conference 2011"
[09:52] <RocketBoy> it didn't snap off?
[09:54] <m1x10> hi !
[09:54] <Randomskk> uh, we didn't do any too extreme testing
[09:54] <daveake> Upu: I'm not on the list :(
[09:55] <RocketBoy> Randomskk: ta
[09:57] <daveake> RocketBoy All 3 balloons present as you said :)
[09:58] <RocketBoy> cool - no probs
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[10:25] <Upu> Hey jonquark welcome aboard :)
[10:25] <jonquark> Upu: Thanks very much!
[10:25] <Upu> Hey daveake
[10:25] <daveake> Hey :)
[10:25] <Upu> did you mail in before about a place ?
[10:25] <daveake> No .... just replied to the group announcement
[10:25] <daveake> Sorry, thought that was enough :(
[10:26] <Upu> No probably was but Google ate all my mail
[10:26] <Upu> PM your email address and full name pls
[10:26] <daveake> Ah. Munch munch.
[10:26] <daveake> Will do.
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[10:27] <daveake> Done
[10:28] <Upu> got it thanks
[10:28] <Upu> I suspected some were missing which is why I sent the mail
[10:28] <daveake> :)
[10:29] <Upu> Best place to be jonquark you'll get alot of good advise here
[10:29] <daveake> btw GPS code fixed and (shock, horror) tested with some real moving GPS data
[10:29] <jonquark> Upu: Cool. Planning all sorts of sensors but I'm keen on pretty photographs too :)
[10:30] <Upu> what are you using for the flight computer ?
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[10:30] <jonquark> mbed 1768 and a Nokia N900
[10:31] <jonquark> Overkill probably but there you go :)
[10:31] <Upu> whats doing the telemetry the phone via SMS ?
[10:31] <jonquark> At low altitude
[10:31] <Upu> ok
[10:31] <Upu> doesn't look overkill
[10:32] <Upu> sure you can modify the Arduino examples for radio etc
[10:32] <jonquark> At high altitude radio... details still being debated
[10:32] <Upu> Radiometrix NTX2
[10:32] <Upu> is the defacto standard in the UK
[10:32] <Upu> as its about the only thing we can use legally
[10:33] <jonquark> We've had a good gander at the UKHAS webpages :)
[10:33] <jonquark> So we've seen that... Gavin has some weird & wacky ideas... but he's not in the channel at the moment
[10:34] <Upu> fair enough be interested to see what you come up with :)
[10:36] <Upu> ok back to work
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[10:48] <Darkside> jonquark: weird and wacky ideas are fine after you get a reliable payload going
[10:49] <Darkside> your first flight should be as reliable as possible
[10:49] <Darkside> and that means using the tried and tested methods that all of us use
[10:51] <jonquark> Darkside: I can see the logic of that
[10:51] <jonquark> But half the fun is experimentation.
[10:51] <Darkside> yes
[10:52] <Darkside> but for the first flight you probably want your payload back
[10:52] <jonquark> If we lose the payload, I'm not going to top myself ;)
[10:52] <Darkside> ahh :P
[10:52] <Darkside> but you want useful data from it..
[10:52] <jonquark> Ideally :)
[10:52] <Darkside> so its best to have a downlink that is reliable
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[11:04] <fsphil> that was why we had two on the cirrus/hadie flight. 300 baud experiment, and reliable 50 baud on another freq.
[11:05] <Darkside> heh
[11:05] <fsphil> turns out 300 is fine :)
[11:05] <Darkside> we've been doing 300 baud for the lasrt 10 flights it hink
[11:05] <Darkside> i think*
[11:05] <Darkside> yeah, 300 works well
[11:05] <fsphil> yea
[11:08] <jonsowman> morning Darkside
[11:08] <Darkside> hey jonquark
[11:09] <jonsowman> I'm afraid I won't be coming to cambridge tomorrow
[11:09] <daveake> fsphil [Dave changes 50 --> 300 for next launch] :)
[11:10] <LazyLeopard> Hmmm.... 300 gave my slightly older laptop trouble.
[11:11] <daveake> I use a netbook in my chase car; I'll check that on 300
[11:12] <LazyLeopard> It was on the edge of what dl-fldigi could handle in the memory and cycles. Mind, this is a 500MHz laptop, I think.
[11:12] <Darkside> eek
[11:12] <Darkside> jonsowman: damn
[11:12] <Darkside> i guess ed and Randomskk will be able to get into wherever we need to get to?
[11:13] <Laurenceb_> _if_ you can float until the evening
[11:13] <Laurenceb_> you might land near Hull
[11:13] <Randomskk> back
[11:13] <Randomskk> ugh traffic
[11:13] Action: Randomskk has keys to cusf lab
[11:13] <Darkside> ok
[11:13] <Randomskk> jonsowman: have you emailed chu about launch/he?
[11:15] <fsphil> my thinkpad handles 2400 baud :) but it's 1.8ghz I thinks
[11:15] <daveake> Yes, I saw the video. Looked impressive!
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[11:30] <jonquark> Darkside: sorry I'm at work and has to pop away for a bit
[11:31] <griffonbot> Received email: Martin Bud "RE: [UKHAS] UKHAS Conference 2011"
[11:31] <jonsowman> Randomskk: Darkside: have emailed Chu, will let you know when I get a reply
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[11:32] <Randomskk> Upu: are any of the LHS members going to be able to come to this conference?
[11:33] <Randomskk> it seems we underestimated demand :P
[11:33] <daveake> Indeed B)
[11:34] <Laurenceb_> conference?
[11:34] <Laurenceb_> i need to joint the mailing list
[11:34] <Randomskk> it's already sold out
[11:34] <Laurenceb_> :(
[11:34] <Randomskk> yea :(
[11:34] <Randomskk> but it's not like it wasn't discussed here :P you should totally join the list
[11:36] <DanielRichman> is the # limit due to space?
[11:36] <Randomskk> yea
[11:36] <Randomskk> LHS isn't massively big
[11:36] <DanielRichman> ah. That's unfortunate
[11:37] <Randomskk> yea
[11:41] <Laurenceb_> relocate to LHC ?
[11:43] <Elwell> cold and you get hit by protons
[11:43] <Elwell> well, once we're back from yesterdays power blip
[11:44] <Upu> hey Randomskk LHS ?
[11:44] <Randomskk> london hack space
[11:44] <Upu> not sure is SpikeUK part of LHS ?
[11:44] <Upu> We need a bigger venue ... :)
[11:45] <Randomskk> I just mean, I think a few of the LHS members were interested in turning up and listening to talks etc
[11:45] <Laurenceb_> oh it in london
[11:45] <Randomskk> hehe well we could view 2011 as a warmup and use it to gauge numbers for 2012 ;P
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[11:46] <daveake> Book the O2 now then ;)
[11:46] <Upu> I'll speak to jcoxon when he's about but at the moment I don't think LHS has the space
[11:46] <Upu> haha yeah
[11:46] <Upu> The streaming of the event would be useful but I don't have a viable way of doing it yet
[11:47] <Randomskk> I think LHS has stuff for that anyway? can't remember
[11:47] <DanielRichman> I thought streaming was meant to be simple. all you need is a Good Enough internet connection, right?
[11:47] <Upu> hah
[11:47] <DanielRichman> and perhaps some beefy CPU
[11:47] <Upu> yeah thats the theory
[11:47] <Upu> however in practice ...
[11:47] <Upu> the only way I've got it working is using a hooky copy of Adobe Media Server
[11:48] <DanielRichman> FLME is meant to be good
[11:48] <DanielRichman> (Flash live media encoder)
[11:48] <Randomskk> eroomde: fitzbillies first opening today!
[11:48] <Randomskk> clearly we must go
[11:48] <DanielRichman> then you just point it at justin.tv or similar; and they do the hard bit
[11:48] <Upu> yeah thats the one but it needs Media Server to "back it up"
[11:48] <Upu> I'll have look at that DanielRichman thanks
[11:48] <DanielRichman> Upu: justin.tv is super easy and has a good track record, and iirc, no forced ads
[11:48] <Upu> was going to ask if people had any alternatives
[11:48] <DanielRichman> (like, you can switch them on if you want to make money on your streaming)
[11:49] <Upu> personally I'd pay to keep it ad free
[11:49] Action: Upu hates adds
[11:49] <Upu> ads
[11:49] <Upu> Martin Bud are you on here ?
[11:49] <DanielRichman> I think justin.tv even has a flash applet that lets you stream awebcam from the browser
[11:49] <DanielRichman> heh
[11:49] <Upu> sounds like a plan
[11:50] <Upu> the site has an Annex-M connection so we should be ok for bandwidths
[11:51] <DanielRichman> that site has a bajillion users; they won't even notice us :P
[11:52] <Randomskk> also we should record the talks to video files
[11:52] <Randomskk> so people can watch some other time
[11:52] <Randomskk> put them on habhub
[11:52] <Randomskk> in fact we should make a website for the con on habhub (possibly a wiki)
[11:52] <Randomskk> or use the ukhas wiki and subpages I guess
[11:53] <Randomskk> but like, with all the information people are likely to start wanting
[11:54] <doughecka> I thought Amazon offered pretty cheap streaming... something like 5 dollars a month to 'rent' the streaming license from adobe... but they require one of the really beefy VM's to run it, changing the cost to over $100 a month
[11:54] <Randomskk> :(
[11:54] <Randomskk> though $100 a month divided by one day isn't too bad
[11:54] <Randomskk> and EC2 is pay per second or whatever
[11:54] <Upu> there is one on there Randomskk
[11:54] <doughecka> well, thats true
[11:54] <Upu> http://ukhas.org.uk/general:ukhasconference
[11:55] <Randomskk> I know about that page, but I mean like more than one paragraph of text
[11:55] <Upu> I'm aware people are wanting info so I'm trying my best but Jcoxon is working nights
[11:55] <Upu> so I'm having trouble getting him for more than 30 secs at a time
[11:55] <Upu> Taken me a week to ascertain the maximum capacity of the venue :)
[11:55] <Randomskk> no great rush at the moment really. I'm happy to help out with bits too - a lot of it's going to be collating info from the LHS wiki
[11:56] <doughecka> but I wasn't sure how easy it would be to script the startup/shutdown of the VM, and if its accidently started and left on...? ouch.
[11:56] <Randomskk> it's super easy to do
[11:56] <Upu> Hopefully we can get a chat this weekend as I'd like to release an itinery
[11:57] <Upu> natrium42 about ?
[11:57] <Elwell> I know the nanode folks switched to c4cc as it was larger than LHS
[11:58] <Randomskk> right bbl, focusing on work for a bit
[11:58] <Upu> Got any details on c4cc Elwell ? Just for information don't think we'll move
[11:59] <Elwell> http://www.creativecollaboration.org.uk/ <-- never been, but this is it
[11:59] <doughecka> You can run a Wowza EC2 instance, on small... that would be 63 dollars a month if left up 24/7
[11:59] <doughecka> plus the wowza license fee...
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[12:01] <number10> there is a large training room at work - I wonder if they would allow use - maybe they would have problems with insurance
[12:08] <GW8RAK> Just found this which could be of use in preventing tx drift, but no mention of current consumption http://www.romanblack.com/xoven.htm
[12:09] <BrainDamage> there's plenty of industrially assembled xtal ovens with data sheet
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[12:09] <BrainDamage> you'll be dissipating something like 0.1W
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[12:10] <daveake> It says 45mA and 5V :-).
[12:10] <GW8RAK> Didn't see that.
[12:10] <daveake> Average will be lower, depending on temps and insulation
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[12:18] Nick change: spacekittun -> spacekitteh
[12:23] <Upu> http://j-tv.me/oafpG5
[12:23] <Upu> try that
[12:26] <Upu> that working ok for people ?
[12:26] <doughecka> bah, justin.tv has ads?
[12:27] <doughecka> video ads that interrupt streaming
[12:27] <Upu> ah ok
[12:27] <Upu> We can fix that
[12:27] <doughecka> looks fine otherwise :)
[12:29] <daveake> Working fine here
[12:29] <Upu> just working out if we can do HD
[12:29] <Upu> k cheers
[12:30] <doughecka> that HD? doesnt look it
[12:30] <Upu> hell no
[12:30] <Upu> its a Logitech *hitcam
[12:31] <Upu> found it in on the scrap pile at work
[12:31] <doughecka> hah
[12:32] <doughecka> how are you going to fix the video ads?
[12:32] <doughecka> I'd love to fix it myself
[12:32] <Upu> pay for it :)
[12:32] <doughecka> btw everyone looks sharp... so... matchy :)
[12:33] <Upu> thats my engineering team
[12:33] <doughecka> oh? I thought paying for it would get rid of ads that you WATCH, not stream
[12:33] <Upu> oh
[12:33] <Upu> duh
[12:33] <Upu> I'll check but you're probably right
[12:34] <doughecka> "Pro Accounts allow you to use Justin.tv without seeing ads. Pro Accounts do not eliminate ads from your channel for other viewers."
[12:35] <doughecka> bummer. I'm seriously looking for a cheap video streaming host that has no-ads (and pay a moderate fee) or has non-obtrusive ads. Like a youtube for streaming :D
[12:35] <Upu> hmm
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[12:35] <Upu> thats the issue I've been trying to avoid
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[12:37] <Elwell> wonder what software we use here
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[12:38] <BrainDamage> I know that http://www.livestream.com/ is used for games often, but I don't know if it has ads because I've got plenty of adblock filters and I miss 90% of ads around
[12:39] <Elwell> I know someone who uses ustream too - again not sure of ads as they just do audio
[12:39] <Upu> http://www.justin.tv/ukhas#/w/1641758848
[12:39] <Upu> Sorry
[12:39] <Upu> http://justin.tv/ukhas
[12:40] <doughecka> well, last I checked ustream didn't interrupt the video feed with ads... we used ustream for Whitestar.
[12:41] <Upu> Tried ustream
[12:42] <Elwell> http://www.ustream.tv/ustream-pro -- from 99/month id you want HD?
[12:42] <Upu> wasnt' impressed
[12:42] <Upu> Can do it in FMLE with a Media Server with no ads in any res we want
[12:42] <Upu> I have the data centers the servers just not the software
[12:43] <Upu> anyway got to do some work
[12:43] <Upu> back soon
[12:43] <DanielRichman> so FLME is free, but the server software isn't?
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[12:45] <Randomskk> what about doughecka's suggestion of using aws and their streaming thing?
[12:46] <doughecka> I started with livestream but they added ads that interrupt the stream, and pro is really costly
[12:48] <doughecka> Here's a thought: http://www.red5.org/features/
[12:49] <doughecka> if you have the bandwidth and servers... run your own Open Source media server. How bad can it be? :)
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[12:49] <fsphil> I do theora streaming all the time, but it has limited client support
[12:50] <fsphil> but totally free
[12:50] <fsphil> (sans-bandwidth)
[12:50] <Randomskk> vlc can receive it right?
[12:50] <fsphil> vlc, firefox, chrome and opera iirc
[12:50] <fsphil> ie8 can do it with a plugin
[12:51] <fsphil> there's a java applet for playing it too, works quite well
[12:51] <fsphil> but has the obvious flaw of being java
[12:52] <doughecka> buffering.........................................................................................java loaded
[12:52] <fsphil> actually no buffering problems, just startup time sucks
[12:52] <fsphil> takes ages to load the java engine
[12:52] <fsphil> once it's going its fine
[12:52] <doughecka> lol... my lame attempt of making fun of java :P
[12:52] <fsphil> all the good theora streaming tools are on linux though
[12:52] <fsphil> it's a pain doing it in windows
[12:52] <doughecka> obviously the best streaming solution would be to use REAL...
[12:53] <fsphil> woo
[12:53] <fsphil> ascii-art via telnet
[12:53] <Randomskk> fsphil: we have nessie running ubuntu
[12:53] <fsphil> can put icecast on nessie
[12:53] <Randomskk> could setup a client at the conference to send video to nessie then stream out of it
[12:53] <fsphil> indeedy
[12:53] <fsphil> a fairly decent cpu could do 25fps 384x288 video fine
[12:54] <fsphil> 512x288 if the camera is widescreen
[12:54] <Randomskk> LHS has computers, or people will have laptops I'm sure
[12:54] <Randomskk> be nice if we could get a good microphone though
[12:54] <fsphil> yea, often a problem at these events
[12:55] <doughecka> get a wireless lavalier mic...
[12:55] <doughecka> and I personally use a DV camera for streaming... just need a firewire port. its DVD quality if you want it.
[12:55] <fsphil> DV is the handiest way of streaming with theora too
[12:55] <doughecka> with really good optical zoom too
[12:56] <fsphil> an old JVC DV camera would do nicely infact
[12:58] <doughecka> indeed, we use an older sony. I'd love to figure out if modern HD cameras output a realtime video feed out of the back, for streaming purposes. It wouldn't have to be HD, but it would have to be clean video (no gui from the camera, etc)
[12:58] <fsphil> I've a new-ish HD canon, it only does hdmi
[12:58] <fsphil> and component analogue
[12:58] <fsphil> no easy way to capture that
[13:01] <doughecka> eh, true. I noticed NASA has a newish sony camcorder mounted in one of the compartments... kinda looked like where everyone 'floats' for 'press conferences', Video usually looks good during live events.
[13:01] <m1x10> im so much hungry
[13:01] <doughecka> I wonder what they are using and how they are capturing it
[13:02] <fsphil> there are hdmi > mpeg4 devices
[13:02] <fsphil> possibly that
[13:02] <fsphil> or something more expensive, knowing nasa
[13:03] <doughecka> ah, true. Well, seeing the stuff they use on the ISS during the tours, there is a-lot of off the shelf stuff up there.
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[13:05] <doughecka> does your HD Cam stream the video live out of the hdmi port? like how the DV port works on the older cams?
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[13:06] <fsphil> yea
[13:07] <fsphil> if there was some way to capture from hdmi easily then it would be a good choice
[13:11] <doughecka> http://www.bhphotovideo.com/c/product/686585-REG/Blackmagic_Design_BINTSSHU_Intensity_Shuttle.html
[13:11] <doughecka> fairly cheap, plus they have a pci-e version too
[13:12] <doughecka> FAIRLY cheap, I was fully expecting to pay 300+ for that capability.
[13:13] <fsphil> that's not bad
[13:14] <fsphil> would need a hell of a machine to encode the video in real time though
[13:14] <fsphil> hardware encoder would be a better option
[13:16] <doughecka> hmm
[13:16] <doughecka> maybe not
[13:16] <doughecka> Always get a clean uncompressed video source for your streaming files. Uncompressed source video also means you don't waste CPU time de-compressing video on capture, so all the computer's CPU is free for compressing to streaming standards. You get faster rendering of your streaming files and more real time support.
[13:16] <doughecka> they do have a point. DV is compressed, computer rips it apart only to be reencoded
[13:17] <fsphil> if the hardware compressed to mpeg4 or something that was supported by vlc
[13:17] <fsphil> it wouldn't need to be uncompressed locally
[13:18] <rjharrison> fsphil, pm
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[13:25] <doughecka> yea, but you're talking about sending full quality mpeg4 over the internet... unless the hardware can compress/resize the video stream down to 300-400kb/s, WITH audio.
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[14:06] <NigeyS> hmm
[14:06] <NigeyS> We at the El Reg Special Projects Bureau are delighted to welcome the OpenPilot initiative aboard our Low Orbit Helium Assisted Navigator (LOHAN) programme.
[14:06] <Randomskk> hmmm
[14:06] <NigeyS> should be errr....interesting
[14:06] <Laurenceb_> oh god
[14:07] <Laurenceb_> almost as much fail as http://en.wikipedia.org/wiki/Talk:Human_anus#Endless_image_contention
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[14:07] <Laurenceb_> nsfw language :P
[14:08] <NigeyS> lol
[14:11] <earthshine> o/
[14:12] <NigeyS> hey earthshine
[14:12] <daveake> O/
[14:12] <earthshine> Hey
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[15:53] <SAIDias> Updates to BallooMerang - http://www.ihabproject.com/BallooMerang/
[15:54] Nick change: SAIDias -> W0OTM
[15:57] <m1x10> that thing is nice
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[16:08] <Dan-K2VOL> lot of money there
[16:10] <eroomde> Randomskk: good news about fitzbillies
[16:10] <eroomde> might pop in tomorrow
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[16:17] <Randomskk> we definitely should. btw we will need to solder up an fsa03 tomorrow a.m. I guess
[16:18] <eroomde> sounds like it
[16:18] <Darkside> ue[
[16:18] <Darkside> yep
[16:18] <eroomde> i really need to be wrapped up by about 3pm
[16:18] Action: Darkside ust got back
[16:18] <Darkside> hopefully it won't be too hard to solder wires to a FSA03
[16:18] <Randomskk> nah it's not bad
[16:18] <Randomskk> eroomde: I'm meeting dan to go to the bank, which closes at 2, so will need to be done a bit before then
[16:18] <Randomskk> then again we're still "aiming" for 9.30am right
[16:19] <Dan-K2VOL> whoah, I need to hop a plane then
[16:19] <eroomde> ?
[16:19] <eroomde> Randomskk: sure
[16:19] <eroomde> depends on gps i guess
[16:19] <fsphil-laptop> I don't have an fsa03 breakout, always solder the wires. simple enough
[16:19] <daveake> What time is the launch tomorrow?
[16:20] <Darkside> fsphil-laptop: got a pic?
[16:20] <fsphil-laptop> not yet Darkside, one sec
[16:20] <eroomde> Randomskk: it's going to take me about 2hrs 20 to drive
[16:20] <eroomde> and darkside's train gets in at 6.30
[16:21] <Randomskk> you people are crazy
[16:21] <Randomskk> I'm going in about 5-10 minutes to catch a sensible train to cambridge :P
[16:22] <Randomskk> finish writing this report for work on the train
[16:23] <eroomde> good idea
[16:23] <eroomde> sadly no such luxury for me
[16:23] <Darkside> oh yeah
[16:23] <Darkside> i was at an apiary today
[16:23] <Darkside> that was fun
[16:23] <eroomde> a who?
[16:23] <Darkside> i got to get into a suit an dplay with bees
[16:23] <eroomde> is that something to do with bees?
[16:23] <Darkside> a beekeeping place
[16:23] <Darkside> i'm gonna upload pics in a bit, once i sort through them
[16:24] <Darkside> i got some awesome macro shots
[16:24] <Dan-K2VOL> :-P
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[16:26] <fsphil-laptop> Darkside, http://i.imgur.com/7Nw4w.jpg http://i.imgur.com/CxXkk.jpg
[16:26] <fsphil-laptop> not my best bit of soldering
[16:28] <Darkside> ok that doesn tlook too hard to do
[16:28] <m1x10> oh not that gps again :(
[16:28] <Darkside> fsphil-laptop: do you just leave the batt backup wire open?
[16:29] <number10> did I read somewhere that there were reeliability problems with FSA03
[16:29] <Randomskk> okay off now, back later
[16:29] <fsphil-laptop> Darkside, yea.. just used the basics. rx/tx, vcc/gnd
[16:29] <fsphil-laptop> number10, the connecting between the board and antenna is fragile
[16:29] <fsphil-laptop> connection*
[16:30] <m1x10> best cheap gps : gps bee :)
[16:30] <fsphil-laptop> other than that they're probably the best gps module
[16:30] <fsphil-laptop> gps bee isn't cheap :)
[16:30] <number10> ic, hence the talk about glue on this fsphil-laptop
[16:31] <fsphil-laptop> yea
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[16:52] <Darkside> http://pipe2.darklomax.org/pics/2011-08-19_Bath_Teaching_Apiary/ BEES
[16:53] <number10> any honey?
[16:54] <Darkside> they collected the honey a few days ago
[16:54] <Darkside> i'll probably end up going home with some
[16:55] <LazyLeopard> Isn't honey a prohibited import?
[16:56] <Darkside> dunno
[16:56] <Darkside> i need to check up on that
[16:56] Action: LazyLeopard half-remembers seeing it mentioned on a customs form...
[16:56] <number10> whaen are you off home Darkside?
[16:56] <number10> when*
[16:56] <Darkside> number10: 28th
[16:57] <Darkside> hmm
[16:57] <LazyLeopard> Something to do with colony collapse disorder (or whatever they call it at the moment) and lack of information about what causes it...
[16:57] <Darkside> i might not be able to take this money in
[16:57] <number10> looking forward to it?
[16:57] <Darkside> honey*
[16:57] <Darkside> number10: not really
[16:58] <Darkside> Personal consignments of commercially prepared, processed and packaged honey products are subject to inspection of packaging only. If not commercially prepared and packaged, or if described as unfiltered or unprocessed then the honey products must be inspected to verify freedom from contamination with bees, parasites, and plant material.
[16:59] <Darkside> hmm
[16:59] <Darkside> apparently this honey has some bees legs foating on top
[16:59] <SamSilver_> Darkside: The man in blue
[16:59] <SamSilver_> would bee you!
[17:00] <Darkside> one of them
[17:00] <Darkside> http://pipe2.darklomax.org/pics/2011-08-19_Bath_Teaching_Apiary/Pages/3.html < that bee me
[17:02] <SamSilver_> the wife says "he is a nice clean-cut guy" I said "Fucken Right!!!"
[17:03] <Darkside> >_>
[17:03] <SamSilver_> :p
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[17:04] <SamSilver_> I often plan my weekends around launches and 2morrow will be no different
[17:04] <Darkside> hehe
[17:04] <Darkside> where are you SamSilver_
[17:04] <Dan-K2VOL> :-)
[17:04] <SamSilver_> I am in Pietermaritzburg
[17:05] <Darkside> wha
[17:05] <SamSilver_> South Africa
[17:05] <Darkside> oh wow
[17:05] <SamSilver_> will be launching my first in the first week in december
[17:05] <Dan-K2VOL> nice dave
[17:05] <SamSilver_> hi Dan
[17:06] <SamSilver_> got BigRedBee stuff doing the tracking
[17:06] <Dan-K2VOL> sounds good
[17:06] <SamSilver_> have got in hand 144.800 aprs
[17:07] <SamSilver_> 433 aprs
[17:07] <SamSilver_> and 433 beacon
[17:07] <SamSilver_> going to fly a 40m beacon as a test for duration flight
[17:08] <Dan-K2VOL> nice, spacenear.us 40m?
[17:08] <SamSilver_> yes Dan-K2VOL
[17:09] <SamSilver_> cw > morse
[17:09] <Dan-K2VOL> nice, I'll see if we can listen here
[17:09] <SamSilver_> having no luck with Olivia
[17:10] <Darkside> try DominoEX instead
[17:10] <SamSilver_> Darkside: I want to get as many trackers as possible
[17:10] <SamSilver_> not sur which has the best range
[17:11] <Dan-K2VOL> intreresting, Bill brown also might be willing to mail you a tracker for domino on 40m like he did us for white star
[17:11] <SamSilver_> I am only going to use 5 watts max
[17:11] <SamSilver_> but with a full antenna
[17:11] <Dan-K2VOL> the one we have is about 3 watts I think
[17:11] <Darkside> SamSilver_: well with CW yu're going to have a horribly slow data rate
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[17:12] <SamSilver_> yes slow data rate data rate will be payload temp dependent
[17:12] <SamSilver_> ie the pay load will Tx when temp drops below threshold
[17:13] <SamSilver_> value
[17:13] <Dan-K2VOL> hmm that sounds rather unpredictable
[17:13] <Darkside> yeah i'd have it TX on a timer basis
[17:13] <Darkside> not on temperature
[17:14] <SamSilver_> Dan-K2VOL: I am trying to kill two birds with one stone
[17:14] <SamSilver_> temp of payload will be kept constant by Tx power
[17:15] <Darkside> SamSilver_: payload temperature is never really a probem
[17:15] <Darkside> basically everything you put into a paylod will handle -40 degrees fine
[17:15] <Dan-K2VOL> it's important for listeners to know when it's going to transmit
[17:15] <Darkside> yes
[17:16] <Darkside> it shouldn't be on a random or pseudorandom basis
[17:16] <Darkside> it should be transmitting every few minutes, or something like that
[17:16] <SamSilver_> Dan-K2VOL: and Darkside I hear you
[17:16] <Dan-K2VOL> (though darkside it's important to test your gear to 40, we've had plenty of things fail due to temp!)
[17:16] <SamSilver_> you both saying the same thing
[17:16] <Dan-K2VOL> lol
[17:16] <Darkside> Dan-K2VOL: all of my stuff has worked fine at -40
[17:16] <Zuph> (Although almost everything that failed was stuff we thought would fail)
[17:17] <Dan-K2VOL> you're lucky darkside, we've not found one cheap tiny video cam that would continue to work after 8 hours of -40
[17:17] <SamSilver_> so what are the thoughts on frequency of transmit
[17:17] <Dan-K2VOL> as often as your power budget allows
[17:17] <Darkside> Dan-K2VOL: ahh... we use the gopros - they generate their own heat :P
[17:18] <Dan-K2VOL> yeah darkside we're looking to keep it off until we command it on after a few days
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[17:18] <BrainDamage> use a radioisotope thermal generator, and you'll have builtin warming :p
[17:18] <Dan-K2VOL> haha
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[17:18] <Dan-K2VOL> good idea, we'll toss a nuclear payload randomly somewhere into europe
[17:19] <Dan-K2VOL> :-P
[17:19] <SamSilver_> BrainDamage: linky for supplier of correct isotope please :p
[17:19] <SamSilver_> p 210
[17:19] <Dan-K2VOL> SamSilver_ it will be up to how much power you can allot to the transmission in milliamphours
[17:20] <BrainDamage> I can actually link you radioactive isotopes, but getting a sufficient amount to make a decent generator would cost you insane as well as weight since they are impure :p
[17:20] <Dan-K2VOL> 15 minutes would be ideal, but unlikely for a trans-oceanic battery pack
[17:21] <Dan-K2VOL> more likely 30 min or hourly
[17:21] <SamSilver_> Dan-K2VOL: my thoughts keep comming back to having a 90 hr batt life and a first flight of 6.16 hrs
[17:21] <SamSilver_> lol
[17:21] <Dan-K2VOL> depending on your transmit duty cycle
[17:21] <SamSilver_> well we live and we learn
[17:22] <Dan-K2VOL> that's good, we targeted 72 hours, which is the max likely possible flight time for the ZP envelopes we've got
[17:22] <Dan-K2VOL> spirit of knoxville got a 40 hour flight, so we know it's possible
[17:22] <SamSilver_> it is an spread sheet thing data rate / distance / number of listeners / checksum / acurate
[17:22] <Dan-K2VOL> yep
[17:23] <SamSilver_> weight is still the bugger
[17:24] <SamSilver_> weight and the ballast thing
[17:24] <Dan-K2VOL> we're using 54 AA energizer lithium batteries for the white star speedball flights, though we did not do very well optimizing for power consumption in our parts selection and software programming due to time constraints, so we have about a 200ma idle load
[17:24] <Dan-K2VOL> SamSilver you're welcome to copy whatever you like from wiki.whitestarballoon.org if you like
[17:25] <SamSilver_> thanx Dan-K2VOL
[17:25] <Zuph> 54 AAs gives us 72 hours with a pretty healthy margin, btw.
[17:25] <Darkside> 54 AAS!
[17:25] <Dan-K2VOL> well as long as we ration our high data rate times on satellite radio and HF
[17:26] <Dan-K2VOL> lol Darkside yes, to save battery holder weight we made a welder to weld them into 3 stacks of 18v
[17:27] <Dan-K2VOL> they fit into a space about 8cm x 8cm x8cm with the power regulator board
[17:27] <Zuph> Yeah, HF is killer. Because of the way the voltage ended up working out, though, we have power for high data rate 75% of the time.
[17:27] <BrainDamage> you diy a spot welder? what did you use, capacitor discharge or microwave oven transformer rewinded?
[17:27] <SamSilver_> I have seen pictures of the batt packs Very Impressive
[17:27] <Zuph> BrainDamage: Capacitor
[17:27] <Dan-K2VOL> 5farad cap
[17:27] <Darkside> are you guys using Class E amps?
[17:27] <Darkside> if you are doing FSK-based data modes, you could use a really high efficiency Class E amp
[17:27] <Dan-K2VOL> beats me, bill brown just mailed us a board and I measured the power draw
[17:27] <Darkside> if you do it right, you can get >905 efficiency
[17:28] <Darkside> >90%
[17:28] <Dan-K2VOL> he's made a more efficient hf amp for this winter though
[17:28] <Zuph> The power amp is roughly 50% efficient.
[17:28] <Dan-K2VOL> it was not very good for last winter's attemp
[17:28] <Darkside> i've got a Class E amp back in australia that gets 95% efficiency at 7.037MHz
[17:28] <Zuph> The static power draw of the GPS is the real killer, though.
[17:28] <Darkside> they all have to be tuned for a set frequency though
[17:29] <Dan-K2VOL> nice
[17:29] <Dan-K2VOL> if we get the baro sensor working for altimetry zuph, think we could sleep that GPS until just before data collection is required
[17:29] <Dan-K2VOL> ?
[17:30] <BrainDamage> the impedance translation & pulse shaping network calculations aren't trivial tough
[17:30] <BrainDamage> but yes, you can get a very tiny conduction angle
[17:30] <Zuph> Dan-K2VOL: Bill's GPS is the killer GPS
[17:31] <Dan-K2VOL> haha
[17:31] <Darkside> BrainDamage: yeah, i wasn't doing pulse shaping
[17:31] <Dan-K2VOL> well you solved that problem
[17:31] <Darkside> which was kind of bad
[17:31] <Darkside> but he, it worked
[17:31] <Darkside> hey*
[17:31] <Zuph> Dan-K2VOL: We could shave 10 mA or so by sleeping ours in a hot-restart state, but Bill's pulls something like 60mA.
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[17:31] <Darkside> but hey, even if you filter the crap out of the output and get something like 80% efficieny, thats still pretty damn good
[17:32] <BrainDamage> I'm all for anything ugly as long as it works :p
[17:32] <Darkside> i just didn't want a linear amp
[17:32] <Darkside> i threw together a HF payload in a day once
[17:32] <Darkside> chucked in a class-AB amp that was lying around
[17:32] <Darkside> damn thing ended up overheating on the ground
[17:32] <Darkside> >_>
[17:33] <Darkside> melted all the hot glue in the payload box
[17:33] <Darkside> problem was, it was turned on in full sunlight for about half an hour
[17:33] <Darkside> baaaaaaaaaaad idea.
[17:33] <SamSilver_> btw Darkside your mini nut looking good this morning
[17:33] <Darkside> ?
[17:34] <Darkside> oh
[17:34] <SamSilver_> you posted pic of it in its uni box
[17:35] <Darkside> oh
[17:35] <Darkside> yes
[17:35] <SamSilver_> What do you think of this idea for a floater?
[17:35] <SamSilver_> 200 small balloons used as lift for pico payload + ballast
[17:36] <SamSilver_> The burst of one balloon will result in the loss of about 0.5% of lift (if remnants of balloon stay attached)
[17:36] <Dan-K2VOL> latex or plastic
[17:36] <SamSilver_> Ballast to be made from frozen anti freeze mixture (ethylene glycol blend type) that melts at desired float altitude temperature.
[17:36] <SamSilver_> So the scenario will go like this: bursting (and leaking balloons) will slow ascent and then initiate descent
[17:37] <Dan-K2VOL> you will need a rapid ballast drop at every sunset
[17:37] <SamSilver_> latex
[17:37] <SamSilver_> Loss of ballast (anti freeze melting at desired float altitude) will initiate ascent.
[17:37] <SamSilver_> A benefit of using many units of lift is that the loss of one unit makes a small change in total lift
[17:37] <Dan-K2VOL> the latex balloons will be unlikely to last for longer than 24 hours in the air due to the UV exposure
[17:37] <SamSilver_> The latent heat coefficient for anti freeze mixture will make the shape of frozen anti freeze mixture important
[17:37] <Dan-K2VOL> conversely it also requires a lot more helium to lift that much latex
[17:38] <SamSilver_> The temp / altitude curve of near space will dictate the float altitudes achievable
[17:38] <Dan-K2VOL> and of that day's weather
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[17:39] <Dan-K2VOL> they aren't static temperature or pressure levels unfortunately
[17:39] <SamSilver_> Dan-K2VOL: spoil sport
[17:39] <SamSilver_> lol
[17:39] <Darkside> hmm
[17:40] <Darkside> i'm going to need to go to bed eeeearly tonight...
[17:40] <Darkside> need to be up at 5am
[17:40] <Dan-K2VOL> it might work samsilver for a passive system, but the large amount needed for sunset would be difficult to trigger I'd think
[17:40] <SamSilver_> well not looking for distance duration as in time
[17:40] <Dan-K2VOL> when you'll have a fast descent rate
[17:41] <BrainDamage> can't you simply load a gas tank and release gas as necessary?
[17:41] <Dan-K2VOL> distance is only a factor of choosing what day to launch
[17:41] <SamSilver_> Dan-K2VOL: sunset and the thermal heating of envelope
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[17:42] <SamSilver_> BrainDamage: my payload will be around 330grams
[17:42] <Dan-K2VOL> BrainDamage, yes, but you need a very lightweight tank that can hold a volume of helium that will lift more when released than the tank weighs
[17:42] <SamSilver_> and my ballast around 6 kg
[17:42] <Dan-K2VOL> Zuph and I did some calcs, and with a medium sized carbon fiber paintball gas tank at 4000psi the helium released would be slightly more than the weight (1kg) of the tank
[17:43] <SamSilver_> ballast and extra helium do the same thing in reverse
[17:43] <doughecka> Dan-K2VOL: hmmm, combined ballast/tank! release contents of tank, and then drop tank. doublewammy in lift.
[17:43] <Dan-K2VOL> but the high pressure regulator and solenoid valve keeps adding weight
[17:43] <Dan-K2VOL> yes doughecka, I was getting to that
[17:43] <doughecka> :D
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[17:44] <Dan-K2VOL> then you can drop the tank - however it's a big heavy tank
[17:44] <SamSilver_> I am rather hoocked on my melting low temp ice thing
[17:44] <doughecka> small charge on tank to blow carbon fiber tank into bits
[17:45] <SamSilver_> I like passive ice melt it is low on teck
[17:45] <SamSilver_> tech
[17:45] <Dan-K2VOL> as a rough estimate, try your math out on a sunset induced descent of 100 meters per minute, likely worst case
[17:46] <Zuph> doughecka: after running the numbers, it's only about a 10% performance boost over the alcohol ballast system, but it IS a significant increase in crap to buy and crap to break.
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[17:46] <Dan-K2VOL> tubing has to run up to the balloon, release mechanism has to be made, etc
[17:46] <doughecka> yea yea :P
[17:47] <Dan-K2VOL> SamSilver_'s aim of simplicity is a laudable goal
[17:47] <hibby> afternoon all
[17:47] <SamSilver_> Dan-K2VOL: I am going for time duration so if the payload stays abouve ground level over the ocean all is good
[17:47] <SamSilver_> Dan-K2VOL: you have a way with words
[17:47] <Dan-K2VOL> that's fine, locaiton doesn't really affect the calculations
[17:48] <Zuph> hola hibby
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[17:48] <Dan-K2VOL> but I guess it does affect how far you can allow it to sink before recovering
[17:48] <Dan-K2VOL> as we don't want to drop below 9km out of the jet stream
[17:48] <Dan-K2VOL> but you could wander down into the weather to just above the surface
[17:48] <SamSilver_> I will be trans ocianic (not trans Atlantic) trans Indian Ocean
[17:49] <SamSilver_> it do not matter if the ballast dips into the ocean
[17:49] <SamSilver_> all good as heat transfer will be greater
[17:49] <SamSilver_> melt then lift
[17:50] <SamSilver_> QED
[17:50] <SamSilver_> says Mr SamSilver who has not had one launch behind himself yet!!!
[17:50] <doughecka> 4000psi... really? that's a lot of pressure.
[17:51] Action: doughecka looks up how much pressure is in a T tank
[17:51] <hibby> hola
[17:52] <Dan-K2VOL> doughecka it's a tremendous amount, it's a CO2 paintball tank
[17:52] <SamSilver_> hibby in the house
[17:52] Action: hibby pushes the roof
[17:52] <Dan-K2VOL> hey hibby
[17:53] <Dan-K2VOL> SamSilver the problem your balloon will encounter is bad weather at lower altitudes - rain means weight
[17:53] <hibby> hows tirkcs?
[17:54] <Darkside> eroomde: will i need to bring any antennas?
[17:54] <SamSilver_> Dan-K2VOL: 2 true
[17:54] <Darkside> or will the track-a-tron suffice
[17:55] <hibby> :/ tricks, even
[17:55] <Zuph> hibby: you working yet? :-p
[17:56] <Dan-K2VOL> SamSilver_ you can easily build a dry ice chamber to test your theory with likely descent rates
[17:56] <hibby> Zuph: yeah, day off :)
[17:56] <Dan-K2VOL> hibby bernheim connect is next weekend
[17:56] <Dan-K2VOL> btw
[17:56] <hibby> nice
[17:57] <SamSilver_> Dan-K2VOL: I will be doing the old cooks method the proof of the pudding is in the pudding
[17:57] <hibby> sounds cool
[17:59] <SamSilver_> afk
[18:01] <Dan-K2VOL> as in flying a whole flight to test the idea?
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[18:21] <hibby> Dan-K2VOL: did you get a chance to read my blog on the maker faire?
[18:22] <Dan-K2VOL> I didn't hibby, what's the link
[18:23] <hibby> http://hibby.tumblr.com/post/9039264376/the-kindness-of-strangers-and-taking-a-leap-of-faith
[18:24] <hibby> and there's a wanky follow up after too
[18:24] <hibby> and I've just finished one to go up now also
[18:26] <hibby> but that's about going to Dayton
[18:26] <hibby> lol
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[18:29] <Dan-K2VOL> nice, I'll read it tonight on the road!
[18:31] <hibby> where you headed?
[18:31] Action: doughecka questions the judgement of reading while driving :P
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[18:31] Action: doughecka also knows who will actually be driving :D
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[18:32] <hibby> Jon does it, and he's alright
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[19:01] <jcoxon> evening all
[19:01] <sbasuita> hey
[19:01] <RocketBoy> hey - jcoxon - yo
[19:03] <griffonbot> Received email: Simrun Basuita "Re: [UKHAS] UKHAS Conference 2011"
[19:03] <W0OTM> evening
[19:06] <Darkside> lol, i just spent the last hour reading about beekeeping
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[19:15] <fsphil> unbeelievable
[19:15] <Darkside> beelieve it!
[19:16] <hibby> be sure you don't get beehind on your studies
[19:16] <number10> did you find out how to produce honeythat does not contain bee legs
[19:18] <Darkside> number10: well its all to do with filtering
[19:18] <number10> but the poor bees ;) how do you sop pulling the legs off
[19:18] <fsphil> Upu, I think you can remove cirrus from the payload list. can't see them launching again for a while
[19:19] <fsphil> what's the callsign tomorrow Darkside?
[19:19] <number10> stop*
[19:20] <Darkside> fsphil: 'darkside'
[19:20] <Darkside> as it says on spacenear.us
[19:20] <Darkside> hopefully it all works properly...
[19:20] <fsphil> radio setup in the attic, should get a good signal
[19:20] <Darkside> i have no gps so i can't test it
[19:20] <Darkside> but it did work last time iw as playing with it, and i haven't changed ay code since then
[19:21] <Darkside> also i'm using dtostrf, along with a space-stripping function to do the float to string conversionns
[19:21] <Darkside> so *hopefully* we won't have any problems with floagt to string conversion
[19:21] <jcoxon> Darkside, i use that method too
[19:22] <jcoxon> don't know why i didn't use dtostrf in the past
[19:22] <Darkside> heh
[19:22] <Darkside> well it does pad the output with spaces at the start
[19:22] <Darkside> that was annoying, but it wasnt hard to write a trim function to get rid of them
[19:23] <jcoxon> what time is launch?
[19:23] <Darkside> around 0830 UTC
[19:23] <Darkside> depends how long it takes to get the FSA03 attached
[19:23] <Darkside> i'm goign to have to wire up the FSA03 tomorrow, just before launch..
[19:24] <number10> so its a bit of a risk, tomorrows balloon Darkside as GPS not on yet - do yoy have the code for the gps that Randomskk has?
[19:24] <jcoxon> ping DanielRichman
[19:24] <DanielRichman> jcoxon: hai
[19:24] <Darkside> number10: its a FSA03
[19:24] <Darkside> i know my code works with FSA03s
[19:24] <jcoxon> wb8elk is having issues with xmls :-)
[19:24] <number10> well thats cool Darkside
[19:24] <Darkside> a FSA03 has the same GPS chip in it as my otehr GPS
[19:24] <Darkside> uBlox 5
[19:25] <DanielRichman> jcoxon: aha. is there an email describing the problem?
[19:25] <number10> good
[19:25] <Darkside> number10: if it was any other GPS then i might have problems
[19:25] <Darkside> my code will not handle normal NMEA data
[19:25] <jcoxon> shall forward it to you
[19:25] <number10> yes, I would say it was a risk if not same chip
[19:25] <Darkside> number10: it wouldnt be hard to make it work though
[19:26] <Darkside> i've done woth with normal GPS units in the past
[19:26] <number10> Like to see someone who is up to a challange Darkside!
[19:26] <Darkside> the main trick it use is overriding arduino's serial interrupt, and replacing it with my own which simply passes the character to TinyGPS
[19:26] <Darkside> that way i don't need any long delays in the main loop
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[19:27] <Darkside> it would also be possible to use the return value of the tinygps.encode function to increment a counter
[19:27] <Darkside> and in the main loop run a transmit function when the counter reaches a certain value
[19:27] <DanielRichman> jcoxon: ok well he's not having trouble with xmls; it's just that xmls arn't being used any more with the changeover to habitat
[19:28] <jcoxon> yeah i know
[19:28] <eroomde> Darkside: i have a mag mount
[19:28] <eroomde> cusf has a yagi
[19:28] <jcoxon> does the new system cope with multiple formats
[19:28] <eroomde> or two ro something
[19:28] <jcoxon> to allow for switch
[19:28] <Darkside> eroomde: okeydoke, it hink we'll be
[19:28] <Darkside> i think we'll be fine
[19:28] <Darkside> i'll bring my cross-dipole, to see how it goes
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[19:28] <fsphil> do you send the command to put it in aviation mode?
[19:28] <Darkside> do you guys have a SWR meter in teh CUSF lab?
[19:29] <DanielRichman> what, multiple telemetry strings in one flight under the same callsign?
[19:29] <Darkside> fsphil: yes
[19:29] <Darkside> and check for the ACK. though we do nothing if it fails.
[19:29] <Matt_soton> where you guys launching from?
[19:29] <jcoxon> DanielRichman, so they use dominoe and rx
[19:29] <Matt_soton> i may have missed the email...
[19:29] <jcoxon> domino and rtty
[19:29] <Darkside> natrium42: there was no email
[19:29] <jcoxon> and dl-fldigi has a switch
[19:29] <natrium42> Darkside: huh?
[19:29] <DanielRichman> ah I see so that's the radio settings rather than the parsing
[19:30] <jcoxon> yeah
[19:30] <Darkside> ack
[19:30] <Darkside> Matt_soton:
[19:30] <Darkside> sorry natrium4, wrong nick highlight
[19:30] <natrium42> ah, np
[19:30] <Darkside> jcoxon: have you launched a payload using the dtostrf method?
[19:30] <jcoxon> yeah
[19:31] <jcoxon> last couple of flights
[19:31] <Darkside> oh good :-)
[19:31] <Darkside> at least someone's done it before
[19:31] <DanielRichman> jcoxon: I can try and patch in multiple radio support now. Any idea how long it is until he flies?
[19:32] <jcoxon> do you see how it works in dl-fldigi
[19:32] <jcoxon> when it parses the xml file for settings?
[19:32] <DanielRichman> I have no idea how it works; but I'll read the xml and make habitat produce the same doc
[19:33] <jcoxon> currently dl-fldigi is still reading the xml i assume
[19:33] <DanielRichman> nah. dl-fldigi reads xml that is generated by a transition script Randomskk wrote that creates xml docs from habitat's json database
[19:33] <jcoxon> i see
[19:34] <jcoxon> yeah just need to replicate the xml i guess
[19:34] <DanielRichman> so I'll try and do that; but can swap it back to the old system if I can't get it done in time
[19:34] <jcoxon> and so should i direct him to the doc generator as well
[19:34] <jcoxon> to make a new doc for the flight tomorrow
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[19:35] <hibby> Darkside: seen El goog's latest addition to youtube?
[19:35] <hibby> there's a hangout share button
[19:35] <hibby> that is cool
[19:35] <Darkside> cool
[19:35] <Darkside> hey NigelMoby
[19:36] <DanielRichman> the doc generator won't support multiple radio formats. It shouldn't be necessary though, since all flight documents that were on rjh's server were converted to habitat docs in a mass import
[19:36] <hibby> just installing WUBI on the work laptop
[19:36] <Darkside> hibby: seen this? http://www.youtube.com/watch?v=viTkj0eu-fk
[19:36] <NigelMoby> Hey
[19:36] <Darkside> also: http://www.youtube.com/watch?v=3__pR3NBf34
[19:36] <hibby> so i can macspoof and do nice things on the powerful machine
[19:36] <DanielRichman> I'll have a look at the files he's tried to upload to see if anythings changed and I can update the json
[19:36] <jcoxon> DanielRichman, apart from the ones in oldxml file
[19:36] <NigelMoby> Frikkin toothache
[19:36] <jcoxon> i guess thats teh issue
[19:36] <DanielRichman> jcoxon: if there's a problem; and I'm not here, you can replace allpayloads.php with allpayloads.pre_habitat.php
[19:36] <DanielRichman> yes oldxml ones wern't transferred
[19:37] <DanielRichman> jcoxon: and the same for listen.php; and receivers.php on spacenear (the habitat changeover email describes exactly what was changed adn how to reverse it)
[19:37] <hibby> Darkside: that's way cool
[19:37] <jcoxon> DanielRichman, well i'm happy to try and get it working on the new system
[19:37] <Darkside> hibby: the FlutterWonder track is now on my phone
[19:37] <Darkside> its awesome
[19:38] <hibby> i'm going along the same lines
[19:38] <Darkside> i already have all of the NotACleverPony stuff on my phone
[19:38] <Darkside> and of course a bunch of lapfox stuff with includes pony remixes
[19:40] <Darkside> i also have this one on my phone: http://www.youtube.com/watch?v=SLG9aEZa_eg&feature=related
[19:40] <Darkside> another nice trance track
[19:41] <DanielRichman> jcoxon: ok going on the dates modified he's pulled ~5 xmls out of the oldxml folder; and hasn't modified any existing ones. So I'll copy those across, and try and fix up the double radio thing.
[19:42] <jcoxon> great
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[19:43] <SpeedEvil> Darkside: I have idly wondered if you could pull the vocal only for http://www.youtube.com/watch?feature=player_detailpage&v=NbIGnY_DSIE#t=56s for a ringtone
[19:44] <Darkside> i can't , no
[19:44] <Darkside> i do not have those kind of skills
[19:44] <SpeedEvil> I don't mean you specifically. :)
[19:44] <Darkside> my ringtone is currently the BrodyQuest song :P
[19:44] <Darkside> for those quo have not seen BrodyQuest: http://www.youtube.com/watch?v=ygI-2F8ApUM
[19:45] <hibby> some people arguably have a lot of time
[19:45] <Darkside> yes
[19:45] <Darkside> all the YTPMVs are products of people with *faR* too much time
[19:46] <Darkside> http://www.youtube.com/watch?v=bpxWphqf2QI&feature=related <-- this one is pretty good
[19:49] <hibby> derpyhooves
[19:49] <Darkside> derp
[19:52] <hibby> :)
[19:52] <hibby> winter wrap up 8 bit
[19:52] <hibby> lol
[19:52] <hibby> http://www.youtube.com/watch?v=QPLsQJJUTmE
[19:54] <Darkside> hmm i should get to bed
[19:54] <Darkside> need to be up stupidly early tomorrow
[19:54] <Darkside> eroomde: you too
[19:54] <Darkside> :P
[19:54] <DanielRichman> jcoxon: is the 11 in DomEX 11 called the speed?
[19:55] <DanielRichman> or would "type" be more appropriate
[19:55] <Darkside> type
[19:55] <Darkside> its not exactly the baud rate
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[20:00] <RocketBoy> humm - i thought that was exactly what it was Darkside
[20:01] <RocketBoy> 11 - for 10.766.. symbols per second
[20:02] <RocketBoy> and a baud is a symbol per second - so 11 baud
[20:09] Lunar_Lander (~Miranda@p54882E49.dip.t-dialin.net) joined #highaltitude.
[20:09] <Lunar_Lander> hello
[20:09] <Lunar_Lander> hi GW8RAK_
[20:10] <Darkside> RocketBoy: as i said, it's not exactly the baud rate
[20:10] <Darkside> but its close
[20:10] <Darkside> 10.766 vs 11
[20:10] <Darkside> enough of a difference to not be decodable
[20:10] <Lunar_Lander> hi Darkside RocketBoy
[20:10] <Darkside> hi
[20:10] <RocketBoy> yeah - its the rounded baudrate
[20:11] <Upu> evening
[20:11] <Upu> ah Mr Coxon
[20:11] <Upu> you about or still working nights ?
[20:11] <RocketBoy> its more of an idetifier
[20:11] <Lunar_Lander> hi Upu jcoxon mattltm fsphil
[20:11] <Upu> Evening Lunar_Lander
[20:11] <Lunar_Lander> how's life?
[20:12] <Upu> Very well just been to see rjharrison to steal some igniters (thx Rob!)
[20:12] <Lunar_Lander> xD
[20:12] <Lunar_Lander> I am just chuckling about a funny question at that ask-a-scientist site
[20:13] <Lunar_Lander> question comes from the UK and is: "what will happen to plants fi they are fertilised with an illegal drug?"
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[20:15] <Laurenceb_> Darkside: your going to 'wire up' an fsa03?
[20:16] <Darkside> yep
[20:16] <Darkside> its all we can do
[20:16] <Darkside> fsphil has done it
[20:16] <Laurenceb_> what could possibly go wrong :P
[20:16] <Darkside> heh
[20:16] <Darkside> well, as long as i don't use single-core wire it should be ok
[20:16] <Laurenceb_> i hope theres some big decoupling caps
[20:16] <Darkside> single core wire will probably put too much force on it
[20:16] <Darkside> Laurenceb_: well, my other GPS module is hooked up via wires
[20:16] <Darkside> and that works fine
[20:16] <Laurenceb_> id try a ferrite core in there as well
[20:17] <Laurenceb_> your other module isnt an fsa03
[20:17] <Darkside> >_>
[20:17] <Laurenceb_> right next to a 10mw transmitter, what could possibly go wrong
[20:17] <Darkside> Laurenceb_: i've done worse
[20:17] <Darkside> far, far worse
[20:17] <Lunar_Lander> RocketBoy : I found something interesting on YT
[20:17] <Darkside> uBlox 5 moduel, with LNA, right next to a 700mW HF transmitter
[20:17] <RocketBoy> ?
[20:17] <Lunar_Lander> Bill Brown's first launch in 1987
[20:18] <Darkside> Laurenceb_: and it worked fine
[20:18] <Laurenceb_> id plat your wires for a start
[20:18] <Lunar_Lander> he explains that Joe Kittinger's jump was the inspiration to do ARHAB
[20:18] <RocketBoy> Lunar_Lander: yeah i habe seen that
[20:18] <Lunar_Lander> ah
[20:19] <number10> Upu -did Rob get those spanish matches he was thinking about? as would be interested in buying some
[20:19] <RocketBoy> he looks a lot younger :-)
[20:19] <Upu> number10 not yet no
[20:19] <Lunar_Lander> that is true RocketBoy :)
[20:19] <number10> ok ta Upu
[20:20] <fsphil> I wired up an fsa03 twice, worked both times :)
[20:21] <eroomde> Darkside: ok, so i'll pick you up from didcot at 6.30
[20:22] <fsphil> man that's an early start
[20:22] <Darkside> eroomde: yep
[20:22] Action: Laurenceb_ has done earlier
[20:22] <Laurenceb_> had to set off from oxford at 4am for UKHAS 1
[20:22] <Darkside> fsphil: i'll be up a 5am to get the train...
[20:22] <Darkside> Laurenceb_: ok, you win
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[20:23] <fsphil> I'll have to set my alarm to be up to try tracking this :)
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[20:25] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] UKHAS Conference 2011"
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[20:29] <RocketBoy> Lunar_Lander: do you know anything about the Ilamari program back in the 1970s (Finland?) ?
[20:29] <Lunar_Lander> yes, I heard of it
[20:29] <Lunar_Lander> that was the first ARHAB ever, right?
[20:29] <Lunar_Lander> in 1967
[20:30] <RocketBoy> yeah - a series of launches - 18 - upto about 1980
[20:30] <Lunar_Lander> yes
[20:30] <RocketBoy> I'd like to find out more
[20:30] <Lunar_Lander> they did mostly amateur radio equipment experiments IIRC
[20:30] <Lunar_Lander> and the websites are in finnish only
[20:30] <Lunar_Lander> yeah
[20:33] <RocketBoy> have you got a link?
[20:34] <Lunar_Lander> wait
[20:34] <Upu> 0830 ZULU ? Thats like rate early and stuff
[20:35] <Upu> Zulu is local time so 0730 UTC ?
[20:35] <Darkside> no, Zulu being UTZ
[20:35] <Darkside> UTC*
[20:35] <Darkside> so 9:30AM local
[20:35] <Upu> James May told me Zulu was local time
[20:35] <Lunar_Lander> RocketBoy : http://www.viestikallio.fi/ilmari/history/ilmari-historia.php?LANG=en
[20:35] <Upu> fair enough
[20:35] <Upu> I should be about , fsphil are you listening tommorrow if I'm not here ?
[20:35] <Upu> remote rig thingy ?
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[20:38] <nelly11> hello!! anyone knows how I can calculate the internal payload capsule temperature? I tried to use the conduction formula but I realise that I have 2 unknowns...the heat loss and the internal temperature :(
[20:39] <Upu> err hard to say best thing is to look at previous launch data I guess
[20:39] <Upu> are you doing something that is temperature specific ?
[20:40] <nelly11> erm nope...I just want to be able to determine how the temperature in the payload capsule will vary with altitude due to conduction
[20:40] <RocketBoy> Lunar_Lander: during the 1970s there was a german publication called "VFH communications
[20:40] <RocketBoy> "VHF communications"
[20:40] <Upu> nelly11 as you go up it will get colder :)
[20:40] <fsphil> Upu, should be yea
[20:41] <nelly11> and then I can work out how many hand warmers i need inside the payload capsule
[20:41] <nelly11> lol I know it will get colder but by how much?
[20:41] <Upu> nelly11 none. Kit should keep it self warm enough with the voltage regulators etc
[20:41] <Darkside> nelly11: what are you planning on pyttingin the capsule?
[20:41] <Lunar_Lander> ah and that had information on the project? RocketBoy
[20:41] <RocketBoy> Lunar_Lander: Im sure it had several articles on ham radio balloon carried projects
[20:41] <Darkside> most stuff you put in there will survive just fine, as long as you insulate it well enough
[20:41] <RocketBoy> yes
[20:42] <Upu> what do internal temps go down too about -10 ?
[20:42] <nelly11> ok..because im particulary worried about the camera..the spec sheet says its operating temperature range is 0 to 40 degrees
[20:42] <Lunar_Lander> ah RocketBoy, that is cool
[20:42] <Upu> nelly11 if you're using a Canon A560 they've been flow repeatidy at lower temps with Energizer Lithiums in with no issues
[20:43] <nelly11> Im using a canon A495
[20:43] <Darkside> close enough
[20:43] <Darkside> they also generate their own heat too
[20:43] <Upu> they generate enough internal heat
[20:43] <nelly11> ok
[20:43] <Upu> even with the screen off
[20:43] <Darkside> we've flown one where the internal payload temp recorded -25 degrees
[20:45] <RocketBoy> Lunar_Lander: wow - looks like you can get all the back issues of VHFcommunications on CD http://www.vhfcomm.co.uk/
[20:45] <Laurenceb_> http://www.theregister.co.uk/2011/08/19/lohan_openpilot/
[20:45] <Laurenceb_> oh dear
[20:45] <Laurenceb_> what did they let themselves in for
[20:45] <Upu> Anyone want to go have a word with them and let them know what they are up against :)
[20:46] <Lunar_Lander> cool RocketBoy
[20:47] <Darkside> Upu: wht are they up against
[20:48] <Upu> getting up there, lauching a rocket with a plane attached to it, disconnecting the rocket from the plane, autonomously flying the plane back down
[20:48] <Darkside> yeah
[20:48] <Darkside> many things that can go wrong
[20:48] <Upu> seriously good luck to them I'll cheer them all the way
[20:49] <Lunar_Lander> damn!
[20:49] <Lunar_Lander> good friend of mine has one of those ICQ worms!
[20:49] <Lunar_Lander> one of the sort that sends out links to images which are in fact worm copies
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[20:49] <BrainDamage> people still use the ICQ official client? o_O
[20:50] <Upu> What he said
[20:50] <RocketBoy> Lunar_Lander: downloading the index i see there was an article by DJ4ZC "A Balloon Carried Translator" back in 1969
[20:50] <Lunar_Lander> cool
[20:50] <RocketBoy> and also "Demands Made on a Balloon Caried Translator" in 1971 by DL3NQ
[20:50] <Lunar_Lander> BrainDamage : I have used QIP last year and now Miranda
[20:51] <Lunar_Lander> that sounds cool RocketBoy
[20:51] Action: Darkside uses Adium
[20:51] <Darkside> based on libPurple, same as Pidgin
[20:51] <BrainDamage> I use pidgin
[20:51] <BrainDamage> I'm using pidgin even for irc
[20:51] <RocketBoy> so the german hams must have been up to hab stuff around then
[20:51] <Lunar_Lander> yeah
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[20:54] <Darkside> ok, nn all
[20:54] <Darkside> need to be up in 7 hours
[20:54] <Upu> good luck tommorrow
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[20:59] <number10> nn ds
[21:01] <daveake> \Good luck and good night
[21:01] <rjharrison> :q
[21:08] Action: fsphil sets his alarm
[21:08] Action: rjharrison set huis alsrm to catch the plane to Toulouse
[21:09] <fsphil> oooh tracking from the air ;)
[21:09] <daveake> daveake sets his alarm to off as it's the weekend :)
[21:09] <rjharrison> lol
[21:09] <daveake> :)
[21:10] <daveake> What time is the launch tomorrow?
[21:10] <fsphil> my tracking setup is all operated remotely, can run it from bed :)
[21:10] <daveake> :)
[21:11] <fsphil> I'd like to try the funcube dongle with this but I can't get a second antenna up high enough
[21:11] <fsphil> an no way I'm driving up the mountain that early in the morning
[21:11] <Lunar_Lander> hi daveake
[21:11] <daveake> hi Lunar_Lander
[21:11] <Lunar_Lander> how are you?
[21:12] <daveake> Just fine. Cutting up some bits of foam for Buzz1
[21:12] <Lunar_Lander> sounds good
[21:16] <rjharrison> nights all
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[21:16] <daveake> Buzz himself it outweighing the flight computer by a factor of 5
[21:16] <daveake> is
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[21:16] <fsphil-laptop> morning rh..
[21:16] <fsphil-laptop> drat,, too slow
[21:17] <daveake> He set the alarm wrong
[21:20] <number10> night all
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[22:02] <jcoxon> ooo new os x software for funcube
[22:03] <Lunar_Lander> hey jcoxon
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[23:07] Nick change: spacekittun -> spacekitteh
[23:24] <Lunar_Lander> hi natrium42 NigelMoby
[23:25] <natrium42> yo
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[23:33] <daveake> Buzz1 is coming together ... http://dl.dropbox.com/u/368443/Buzz%20UFO.jpg :-)
[23:34] <Lunar_Lander> cool
[23:35] <daveake> The disc is the ground plane :)
[23:37] <daveake> Batteries and NTX2 go in the disc; the computer, GPS and (of course) LEDs go in the foam semi-circle on top
[23:44] <Lunar_Lander> yea
[23:49] <manderson21> how are you going to lift it?
[23:49] <manderson21> I'm a complete novice about this stuff and am still trying to learn ;)
[23:50] <manderson21> where will you place the propellors?
[23:50] <daveake> erm, it's a balloon payload. No propellors!
[23:51] <manderson21> ah, ok
[23:52] <manderson21> natrium42 had a couple flights that went up really high... are you going to stuff a camera on it?
[23:52] <daveake> Yes, a small and very light one. Also very crap, but you can't have everything!
[23:53] <manderson21> so I've learned :(
[23:54] <manderson21> I know I won't be able to make a quadcopter to carry my dslr
[23:54] <manderson21> too heavy of a payload
[23:54] <manderson21> plus the risk of damaging some $2000 worth of equipment :p
[23:55] <manderson21> (and that's just the camera)
[23:55] <daveake> No need for a DSLR! Use a Canon A-series powershot that takes AA cells. Less than 200g inc batteries
[23:55] <manderson21> I'm quite fond of my lenses
[23:56] <manderson21> but yeah, I've seen a lot of powershots and gopros being used
[23:56] <daveake> Then don't drop them on the ground from a great height!
[23:56] <manderson21> haha
[23:56] <manderson21> I can't guarantee that
[23:56] <daveake> Mine landed at 26mph, after the balloon wrapped itself around the parachute
[23:56] <manderson21> whoa
[23:56] <daveake> Buzz1 should be 120g including parachute
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[23:57] spacekitteh (~TraumaPon@124-171-95-230.dyn.iinet.net.au) left irc: Disconnected by services
[23:57] Nick change: spacekittun -> spacekitteh
[23:57] <manderson21> if I make a normal helicopter, I would need a large battery for longer flight times, but that larger battery is going to be heavier, thus the copter will need higher RPM to fly at the same height
[23:58] <manderson21> :(
[23:58] <BrainDamage> you need a battery with higher energy density
[23:58] <BrainDamage> J/kg
[00:00] --- Sat Aug 20 2011