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[00:12] <NigeyS> Total rates: 10337.9 kbytes/sec Broadcast packets: 1 
[00:12] <NigeyS>  10049.0 packets/sec Broadcast bytes: 117
[00:12] <NigeyS> why cant my home connection be that fast :(
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[00:57] <NigeyS> hey juxta
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[01:08] <natrium42> ...
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[01:08] <Darkside> NigeyS: he's away for a bit
[01:08] <Darkside> hey natrium42
[01:08] Action: NigeyS throws a melon at natrium42
[01:09] <NigeyS> oh ok tnx Darkside
[01:09] <Darkside> natrium42: we're probablt going to clone spacenear.us for met balloon chases
[01:09] <Darkside> as i'm working on a way to get data from sondemonitor into spacenear.us
[01:10] <Darkside> well, for the digi-sondes anyway
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[01:19] <natrium42> Darkside: ah, sure
[01:19] <Darkside> just so we don't interfere with anything else going on
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[01:21] <natrium42> yo Dan-K2VOL
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[01:27] <griffonbot> @LVL1WhiteStar: @KySpace_KySat1 good luck on your March 4 cubesat launch, neighbors! we're following behind soon, but a little lower and slower ;-) #arhab [http://twitter.com/LVL1WhiteStar/status/43120184881455104]
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[01:30] <Dan-K2VOL> Evenin
[01:33] <SpeedEvil> Oh - don't forget nanosail!
[01:33] <SpeedEvil> Given the earlier mention of stuff to watch
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[01:47] <NigeyS> netspliiiiiiiiiiiiiiit
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[03:09] <W0OTM> Howdy
[03:10] <Dan-K2VOL> Hola
[03:10] <W0OTM> My new fill device
[03:10] <W0OTM> http://www.youtube.com/user/SAIDiasMobile#p/u/0/bmL6zHsVwKg
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[06:31] <x-f> Upu, indeed, it was my cat on keyboard :)
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[06:48] <Upu> haha
[06:48] <Upu> morning :)
[06:49] <Dan-K2VOL> Hey upu
[06:49] <Dan-K2VOL> Where are ypi based?
[06:49] <Dan-K2VOL> You
[06:49] <Upu> hey there Dan, in the UK
[06:49] <Dan-K2VOL> Gotcha
[06:49] <Upu> just having breakfast
[06:49] <Dan-K2VOL> Mmmm what's on the table
[06:49] <Dan-K2VOL> I'm hungry
[06:49] <Dan-K2VOL> It's 2am here
[06:50] <Upu> Cunchy Nut Cornflakes ?
[06:50] <Dan-K2VOL> Hmm sounds good!
[06:51] <imrcly> in stereo
[06:51] <Upu> Crunchy even
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[06:51] <Dan-K2VOL> Did you see w0otm's filler?
[06:51] <Upu> balloon filler ? no why ?
[06:52] <Dan-K2VOL> It's done pretty dangerously and I was just going to warn you not do do it like that
[06:52] <Dan-K2VOL> pin w0otm
[06:52] <Upu> lol got a link ?
[06:52] <Dan-K2VOL> Ping w0Otm
[06:52] <Upu> I just finished mine last night
[06:52] <Dan-K2VOL> http://www.youtube.com/user/SAIDiasMobile#p/u/0/bmL6zHsVwKg
[06:53] <Dan-K2VOL> Well, if you did it the way he did, you MUST put a pressure relief valve in the PVC before the gate valve, or you'll shoot your eye out
[06:53] <Dan-K2VOL> It's not safe to just have an order of operations protecting you from high energy plastic shrapnel
[06:54] <Upu> I don't have a valve on the filler
[06:54] <Dan-K2VOL> Good
[06:54] <Upu> in fact mine will probably pop apart I'm using aquarium push to fit connectors
[06:54] <Dan-K2VOL> Lol nah, they're under very little pressure
[06:54] <Dan-K2VOL> Unless you were to close a valve on it :-P
[06:55] <Dan-K2VOL> Make sure any flexible tubing you use is HIGH PRESSURE rated
[06:55] <Upu> err
[06:55] <Dan-K2VOL> do not use plastic or rubber tubing that's not rated for high pressure gas
[06:55] <Upu> errr
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[06:55] <Upu> so hose pipe and gum rubber tubing not a good idea ?
[06:55] <Dan-K2VOL> think about what would happen if someone kinked it
[06:55] <Dan-K2VOL> While filling
[06:56] <Upu> yeah we will have to watch that
[06:56] <Dan-K2VOL> No
[06:57] <Upu> so I need to get some higher pressure tubing then ?
[06:57] <imrcly> if it kinks at all it could cause a weak point before you even start
[06:57] <Dan-K2VOL> I highly recommend against any high pressure gas safety relying on making sure you follow a procedure properly
[06:57] <Dan-K2VOL> Yes, get a hose like W0OTM has
[06:57] <Dan-K2VOL> from an air compressor
[06:57] <Dan-K2VOL> Or a welding supply store
[06:57] <Dan-K2VOL> Something rated for the max output pressure of your helium regulator
[06:58] <Upu> hmm not sure how I'm going to make that fit
[06:58] <Upu> ok I'll have another look
[06:58] <Dan-K2VOL> Take your time, it's better than taking your life :-)
[06:59] <Dan-K2VOL> I'd be glad to ship one over to you for the summer that has a pressure fitting on it like W0OTM's if you can't figure out how to get it to work, in the interest of safety
[06:59] <imrcly> don't get the plastic curly hose they are weak and prone to snapping if they get cold
[07:00] <Upu> the only issue is I have this silly party balloon filler on the tank
[07:01] <Upu> which you push down to activate
[07:01] <Dan-K2VOL> hahah then you have NO problem
[07:01] <Upu> also my balloon has a 8.3cm (yes cm) filler diameter
[07:01] <Dan-K2VOL> that's ok, you just fold it around the pipe
[07:02] <Dan-K2VOL> What is that, a 3000gm?
[07:02] <Upu> 16000
[07:02] <Upu> - 1 '0'
[07:02] <Dan-K2VOL> What?! Why
[07:02] <Dan-K2VOL> Where did you get that
[07:02] <Dan-K2VOL> Oh
[07:02] <Upu> 1600g
[07:02] <Dan-K2VOL> Lol
[07:02] <Upu> :)
[07:02] <Dan-K2VOL> 1600
[07:02] <Upu> ease back :)
[07:02] <Upu> Hwyoee one
[07:02] <Dan-K2VOL> Thought you were gonna take a ride
[07:02] <Upu> lol yeah
[07:02] <Dan-K2VOL> :-P
[07:02] <Upu> imagine the amount of gas :)
[07:03] <Dan-K2VOL> I don't I couldn't afford to fill one!
[07:03] <Upu> so with my silly push to fill thing and my rubber tubing I'm going to be ok ?
[07:03] <Dan-K2VOL> I'm double checking
[07:03] <Dan-K2VOL> But I think the push to fill regulator will be very low pressure
[07:04] <Dan-K2VOL> But it will take you something like 30 minutes to fill
[07:04] <Upu> yeah it is, I've been told by someone who should remain nameless to take it off
[07:04] <Upu> yeah
[07:04] <Upu> fsphil used one 15 mins for his balloon
[07:04] <Dan-K2VOL> I would, and put a normal gas regulator on from a welding supply
[07:04] <Upu> not sure of the size though
[07:05] <Upu> next launch...
[07:05] <Upu> I have a list
[07:05] <Dan-K2VOL> heh yeah they're not cheap
[07:05] <Dan-K2VOL> Cool
[07:05] <Dan-K2VOL> Whatcha flyin on this one?
[07:05] <imrcly> YEAAH
[07:05] <imrcly> yeeah
[07:05] <Upu> the pink box of doom :)
[07:05] <imrcly> yeaah
[07:05] <imrcly> yay
[07:06] <Upu> A560, AEE MDS92 on a boom pointing back at the payload and the generic 2 temps and a flight computer setup
[07:06] <Upu> you ok imrcly ?
[07:06] <Dan-K2VOL> Nice
[07:06] <imrcly> messing with dans text to speech
[07:06] <Dan-K2VOL> Listen to http://oIad upu
[07:06] <Upu> http://www.youtube.com/watch?v=lXlyBK4N7t4
[07:07] <Dan-K2VOL> Http://ustre.am/oIad
[07:07] <Upu> oh
[07:07] <Upu> a man on a keyboard
[07:07] <Upu> and an advert
[07:07] <Dan-K2VOL> Hahaha
[07:07] <Dan-K2VOL> That's Imrcly in the back
[07:07] <Dan-K2VOL> And me in the front
[07:07] <Upu> ah roger
[07:08] <Upu> lol
[07:08] <Upu> tis my internet video on the internet video
[07:08] <Dan-K2VOL> Does your balloon have a shortwave radio receiver on it?
[07:09] <Dan-K2VOL> Looks like a great payload box setup
[07:09] <Dan-K2VOL> Good video q
[07:09] <Upu> just the usual UK licensed 434Mhz
[07:09] <Upu> 10mW
[07:09] <Upu> https://picasaweb.google.com/upuaut/201012AvaFinalBuild#
[07:11] <Upu> so when are you guys launching ?
[07:11] <Dan-K2VOL> Grrr
[07:11] <Dan-K2VOL> Damn good question
[07:11] <Upu> band question ?
[07:11] <Upu> bad
[07:11] <imrcly> once dan stop getting distracted
[07:11] <Dan-K2VOL> She's close, very close
[07:11] <Dan-K2VOL> Damnit
[07:11] <Dan-K2VOL> Yeah about then
[07:11] <Upu> hehe
[07:12] <Dan-K2VOL> I like your autographed scale
[07:12] <Dan-K2VOL> How did you get the foam sides shaped? To have channels for the divider walls
[07:12] <Dan-K2VOL> Is that gaffer's tape?
[07:13] <Upu> haha yes
[07:13] <Upu> I used a hot wire cutter
[07:13] <Upu> had 2 rigs
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[07:13] <Upu> one normal one
[07:13] <Dan-K2VOL> Oh very nice
[07:13] <LVL_Joe> yeah I blame Dans add for the whole thing.
[07:13] <Upu> one horizontal one on a bench
[07:13] <Dan-K2VOL> Good work with it
[07:13] <Upu> https://picasaweb.google.com/upuaut/201009AVAPayloadConstruction#5520396722632523842
[07:13] <Upu> then glued it
[07:14] <Upu> and finally pink gaffer tape :)
[07:14] <Upu> thanks
[07:14] <Dan-K2VOL> Funny, we had a pink foam box
[07:14] <Dan-K2VOL> And painted it black
[07:14] <Upu> haha
[07:14] <Dan-K2VOL> That's it
[07:14] <Upu> anyway sadly got to go to work
[07:15] <Upu> ttyl and good luck with the launch
[07:15] <Dan-K2VOL> Ok, ttyl
[07:15] <Dan-K2VOL> You too
[07:22] <jcoxon> morning
[07:25] <Dan-K2VOL> Morning
[07:25] <jcoxon> looks like things are falling into place Dan-K2VOL
[07:28] <Dan-K2VOL> They're gettin there james
[07:28] <Dan-K2VOL> They're gettin there
[07:43] <jcoxon> :-)
[07:43] <natrium42> HI
[07:43] <jcoxon> hey natrium42
[07:43] <natrium42> caps lock is cruise controll for cool
[07:43] <jcoxon> of course
[07:44] <jcoxon> been looking at an ipad2
[07:44] <jcoxon> must say i'm tempted
[07:44] <jcoxon> not sure what i'd use it for though :-p
[07:44] <natrium42> i want to sell my old ipad
[07:44] <natrium42> :S
[07:44] <natrium42> who wants it!
[07:44] <natrium42> :P
[07:44] <jcoxon> do you actually use it for stuff
[07:44] <jcoxon> i pretty much use my laptop for everything i suspect i'd use it for
[07:45] <Dan-K2VOL> I use it for PDF reading a lot of datasheets
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[07:45] <Dan-K2VOL> and web browsing in the car
[07:46] <jcoxon> 3g version?
[07:46] <natrium42> jcoxon: reading papers
[07:46] <natrium42> yep, 3g and 32GB
[07:47] <natrium42> tracker works there too
[07:47] <natrium42> should port fldigi :D
[07:47] <keng> the first HAB launch in thailand 2 weeks ago was awesome - http://www.flickr.com/photos/openspaceproject/
[07:47] <keng> :)
[07:47] <jcoxon> keng, ooo cool
[07:47] <keng> reached 29.4km :)
[07:48] <jcoxon> nice work
[07:48] <jcoxon> how did you track it?
[07:48] <keng> jcoxon: aprs beacon with mobile handset
[07:48] <keng> and aprs.fi
[07:48] <jcoxon> nic
[07:48] <jcoxon> e
[07:49] <natrium42> oh, awesome
[07:49] <keng> thanks :)
[07:49] <keng> the habhub's prediction helps us predict the direction of the balloon at high altitude
[07:49] <keng> :)
[07:49] <jcoxon> great
[07:49] <jcoxon> its a very useful tool
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[07:50] <keng> jcoxon: it's fantastic.
[07:52] <jcoxon> natrium42, i've pretty much got this spot sorted with the arduino
[07:52] <jcoxon> the only issue is encoding lat/lon still
[07:53] <jcoxon> but i'll work on that tonight
[07:54] <fsphil> keng, congrats with the launch and recovery
[07:54] <natrium42> kk
[07:56] <jcoxon> keng, really clear pictures - i'm jealous of your climate
[07:56] <fsphil> love this: http://www.flickr.com/photos/openspaceproject/5445630678/
[07:57] <keng> fsphil: it's a small town at the western of thailand. 150km from Bangkok. ~50km from the Myanmar border :D
[07:59] <keng> jcoxon: thanks :)
[08:00] <jcoxon> bbl
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[08:48] <fsphil> The hadie launch this weekend is starting to look unlikely to happen
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[09:57] <fsphil> woo, I now have a chase team :)
[10:04] <SpeedEvil> :)
[10:04] Action: SpeedEvil puts on old Keystone Kops videos.
[10:06] <SpeedEvil> http://www.suasnews.com/2011/03/3984/uk-mod-tender-for-nuas-nano-worth-20-million-pounds/
[10:10] <fsphil> 20 million? that's quite a bit
[10:11] <SpeedEvil> yes
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[10:11] <SpeedEvil> Get a few UAVs setup, and have them hover round the head of the guy approving funding for a week.
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[10:16] <fsphil> so true: http://theoatmeal.com/comics/printers
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[10:16] Nick change: GW8RAK_ -> GW8RAK
[10:17] <fsphil> I wonder if I'd be better of using a 600g balloon instead of the 1000g
[10:17] <fsphil> to keep the range down a bit
[10:18] <eroomde> somebody pinged me
[10:18] <eroomde> at some point in the last 5 days
[10:18] <eroomde> can one grep an irssi history from irssi itself?
[10:19] <fsphil> jcoxon last mentioned your nick on the 28th
[10:20] <fsphil> that's it until just now
[10:20] <eroomde> ok fine
[10:20] <eroomde> i have been in berlin
[10:20] <fsphil> sweet
[10:21] <fsphil> good weekend?
[10:21] <SpeedEvil> From paris?
[10:21] <SpeedEvil> http://www.youtube.com/watch?v=THt5u-i2d9k
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[10:25] <eroomde> fsphil: yep thanks
[10:25] <eroomde> was there for a few days, visiting a friend who is living there and having a mosey around. I'm tempted to move out there for a bit - Berlin is cheap!
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[10:30] <Randomskk> eroomde: you can /lastlog <search term>
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[10:31] <eroomde> gah, it doesn't go beyond me coming on today
[10:31] <eroomde> oh well
[10:31] <eroomde> thanks for the tip Randomskk
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[11:20] <GroupO> Hibby: ping
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[11:42] <groupo> hey guys, quick question
[11:43] <groupo> does anyone hwo has caried out a uk based flight know about the legallity of taking a helium tank to site in ur car?
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[11:52] <Laurenceb> i think technically you need to put a compressed gas sticker on the back
[11:53] <Laurenceb> one of the green ones
[11:54] <groupo> rite, but I assume most people dont...
[11:55] <SpeedEvil> The question is probably one of insurance.
[11:55] <SpeedEvil> Does your car insurance cover transport of compressed gas.
[11:56] <SpeedEvil> http://www.yorkshire-divers.com/forums/frequently-asked-questions-faqs/57548-car-insurance-3.html
[11:58] <fsphil> haha, "If you regularly travel with what is in effect a "bomb" in the boot, I'd get a sticker"
[11:58] <groupo> ok, fair enough, I'll give my insurance providers a bell tonight
[11:58] <Laurenceb> heh good luck with that
[11:58] <Laurenceb> id leave it
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[11:59] <groupo> I was thinking of winging it, tbh
[11:59] <groupo> but the project is through uni and they get all ancy about it
[11:59] <Laurenceb> ah
[12:00] <Laurenceb> insurance may cause a shitstorm if you ask
[12:00] <Laurenceb> imho if you want to do it by the book get a green compressed gas sticker
[12:01] <groupo> yeh, all the stuff through uni has been a nightmare
[12:01] <groupo> even getting the unis permission to launch
[12:01] <NigeyS> morning..noon
[12:01] <groupo> wrt insurance for damage caused to private property...from a 2kg mass faillin at about 4m/s...touch excessive i thought
[12:02] <NigeyS> oh dear you're trying to find insurance ?
[12:02] <fsphil> good nooning NigeyS
[12:02] <NigeyS> thats the 1 phil! lol, nooning m8e
[12:03] <NigeyS> laurenceb have you seen this... http://www.bbc.co.uk/news/science-environment-12620560
[12:03] <groupo> the uni has cover, but the excess is like £2500
[12:03] <NigeyS> yikes
[12:03] <groupo> so didnt see much point in even consulting them
[12:04] <SpeedEvil> If the excess is 2.5k - and it doesn't cost to get you added - it's a good thing.
[12:04] <NigeyS> tbh you probably have more chance of being struck by lightning while taking a pee than damaging anyone or anything with a hab payload
[12:04] <fsphil> tell that to jcoxon :)
[12:04] <groupo> yeh thats what we were thinking
[12:05] <NigeyS> fsphil, no damage was done to the car! lol
[12:05] <fsphil> but yea the odds are tiny
[12:05] <fsphil> esp. for light payloads
[12:06] <fsphil> but 2kg? what are you launching?
[12:06] <NigeyS> yuppers, depends a bit on where your predicted landing is . city vs countryside.. but even then, pretty small
[12:06] <NigeyS> or in phils case, the small pond between here and ireland :P
[12:06] <groupo> its a combined payload - we are producing a stabilising frame
[12:06] <eroomde> don't discount it though
[12:07] <NigeyS> hi eroomde
[12:07] <groupo> and the electronics are going to be "hi-tech" and supplied by our electrical dept
[12:07] <fsphil> splash
[12:07] <groupo> I'm still trying to do some coding to retrieve our structure
[12:07] <groupo> its killing my slowly
[12:07] <NigeyS> fsphil, arm bands for the next launch?
[12:07] <eroomde> groupo: what is the stabilised platform?
[12:07] <eroomde> how is it stablised?
[12:08] <eroomde> i'm very interested in this sort of thing
[12:08] <fsphil> NigeyS, it's actually looking fairly good atm for saturday
[12:08] <groupo> http://www.projects.mecheng.strath.ac.uk/groupo/
[12:08] <NigeyS> oh sweet, wheres the predictor putting it ?
[12:08] <groupo> we are using aerodynamic principles
[12:08] <groupo> i was opting for a gimble, but that got shot down , pardon the pun
[12:09] <eroomde> which aerodynamic principles?
[12:10] <groupo> generally speaking
[12:10] <groupo> we have run various simulink analysis
[12:10] <groupo> added a new wing design after our fail in the wind tunnel
[12:10] <groupo> it helps to add damping forces and settle the frame into the wind
[12:10] <groupo> suprisingly effective
[12:11] <eroomde> so is it actively stabilised or passively damped?
[12:11] <groupo> more of the latter
[12:11] <groupo> using the forces applied to the wings to settle the oscillations that occur due to change in wind direction, or dirven by gusts
[12:12] <eroomde> ok - but any active control surfaces on the wing to, say, provide a counter torque to twisting?
[12:12] <groupo> no, not in our current design
[12:12] <groupo> we have a limited budget, and have exhausted it
[12:13] <groupo> it woul dbe good for future projects in the uni to look into that possibility
[12:13] <fsphil> NigeyS, http://habhub.org/predict/#!/uuid=eac2cfd8ca0a2a87e8fa46e8c713dd3d28512d47
[12:13] <eroomde> groupo: cool
[12:13] <groupo> but we are creatin the platform from which they can develop
[12:13] <NigeyS> oo phil thats looks pretty good!
[12:13] <eroomde> when we went for passive stabilisation for something we did a bit back, we just had big f-off streamers
[12:13] <fsphil> a bit near some population centres, but otherwise fine
[12:14] <eroomde> cuspaceflight.co.uk/media groupo - check the first video on that page
[12:14] <eroomde> which is in rather sore need of an update
[12:14] <NigeyS> true, but should be ok, fingers crossed
[12:14] <groupo> eroomde: streamers, novel!
[12:14] <eroomde> not to the bomblet industry!
[12:15] <groupo> ha
[12:15] <groupo> how did you guys recover your payload? did u use an sms?
[12:16] <eroomde> nope just radio
[12:16] <eroomde> usual
[12:16] <groupo> kl, was that successful? any issues with it?
[12:17] <eroomde> the mission or using the radio?
[12:17] <groupo> using radio to locate the final DZ of the payload
[12:18] <eroomde> yep it works fine for us
[12:18] <eroomde> it's the standard ukhas way we've developed over the last 3 or 4 years
[12:18] <groupo> kl, i have been trying to get a ohone to send an sms, but its tricky
[12:19] <groupo> plus i dont have any prior experience of coding
[12:19] <eroomde> sms can be a bit finickity
[12:19] <eroomde> what are you usuing to transmit?
[12:19] <eroomde> a phoen or a modem?
[12:19] <groupo> the sms?
[12:20] <groupo> its a phone for the sms - trying to connect it up to the arduino
[12:20] <eroomde> which phone?
[12:20] <groupo> sony ericsson t68i
[12:21] <groupo> i have found some data on it, but tbh it requires a deeper understanding than i can muster at this point
[12:21] <groupo> although it depresses me that he guy who devised the code for it is still in high school and im in 5th year at uni and I have no clue!
[12:22] <eroomde> one can't learn everything
[12:22] <eroomde> but yeah, if there's time I would consider using a radio
[12:23] <eroomde> but as with most things in life there probs isn't :)
[12:23] <groupo> indeed, im stressed out my face at hthe moment
[12:23] <groupo> but as it stands we have hibby coding for us, with minimal input from me
[12:23] <Laurenceb> group0: ive had the t68i working before
[12:24] <groupo> i think the gps is just about there and the rtty code is working
[12:24] <Laurenceb> you need to generate AT commands
[12:24] <fsphil> aah the pre-launch stress :)
[12:24] <Laurenceb> you need sms in binary format
[12:24] <groupo> Laurenceb: i have a piece of code i think might work
[12:24] <Laurenceb> the message center is a pain
[12:24] <groupo> i was using hexdump.h
[12:24] <Laurenceb> theres an AT command to find the message center, i use that
[12:24] <groupo> but im not sure i really understand what is happening
[12:25] <Laurenceb> iirc theres python code for this on the wiki
[12:25] <eroomde> well, good luck groupo
[12:25] <groupo> haha, i need it
[12:26] <groupo> Laurenceb: is python a project name?
[12:26] <Laurenceb> its a programming language
[12:27] <groupo> ah rite
[12:27] <groupo> well im based on arduino...is that transferrable?
[12:27] <Laurenceb> http://ukhas.org.uk/projects:aerosol_code
[12:27] <Laurenceb> youd need to convert to c, but its quite simple
[12:28] <groupo> ha, one mans simple is another mans suicide
[12:28] <Laurenceb> heh
[12:29] <Laurenceb> that talks to a t68i and gps receiver
[12:29] <Laurenceb> get_smscen(): and sendsms are the most relevant parts
[12:29] <groupo> is there instructions anywhere on the web to get a conversion?
[12:31] <Laurenceb> yes... i cant remember the page tho sorry - google is your friend
[12:32] <Laurenceb> basically its converted to 7 bit ascii and packed into a hexidecimal string
[12:32] <Laurenceb> stringy is the string
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[12:32] <groupo_> Laurenceb_: sorry, d/c
[12:33] <Laurenceb> stringy="AT+CMGS="+str(14+(int(len(s)*7/8)+1))+"\r\n"
[12:33] <Laurenceb> thats basically 'AT+CMGS=*lengh*\r\n
[12:33] <groupo_> what does that do?
[12:33] <groupo_> ahh, read my mind
[12:33] <Laurenceb> thats the first thing you say to the phone
[12:34] <Laurenceb> then you send the sms itself
[12:34] <Laurenceb> after the phone replies with '>'
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[12:34] <groupo_> i have something similar, but it calls out
[12:34] <groupo_> hexdum.h
[12:34] <groupo_> *hexdump.h
[12:34] <Laurenceb> ok
[12:35] <groupo_> my main problem is that i dont really understand programming languages
[12:35] <Laurenceb> you probably want a hexdump.c to go with that
[12:35] <Laurenceb> or some library
[12:35] <Laurenceb> this is a bit inmvolved :P
[12:35] <groupo_> yeh, i think so, its from danielr lib
[12:36] <groupo_> it is, not an ideal place to discuss the intricacies of this stuff
[12:37] <groupo_> anyways, it is lunchtime I feel! bbl
[12:37] <groupo_> thanks for the help
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[12:40] <fsphil> mmm. lunch
[12:41] <perseus> hi, all. has anyone used a SiRFstarIII based GPS for one of their projects?
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[12:42] <Darkside> perseus: i think they have an altitude limit or something
[12:42] <Darkside> not 100%
[12:42] <perseus> i want to know what happens to the gpslat,gpslon and gpsalt reading after the 60,000 feet
[12:42] <Darkside> yeah
[12:42] <Darkside> you want to find out if they have an AND or OR clause in theor code
[12:43] <perseus> does it go to 0 or just a fix loss
[12:43] <Darkside> dunno
[12:43] <Darkside> never used one
[12:43] <Darkside> I always use uBlox chipsets, since I know they work
[12:43] <perseus> yeah, but i have this one, and already done the development work on it
[12:44] <Darkside> if you loose your balloon when it goes above 18km, you will be loosing your development work
[12:44] <perseus> i dont care if i loose fix for the last part of the flight
[12:44] <perseus> just want to regain the fix after coming down.
[12:45] <Darkside> what if its too far away, and you cant get signal
[12:45] <Darkside> whats your data downlink method?
[12:45] <perseus> always a possiblity
[12:45] <Darkside> it shouldn't be hard to switch it out with a uBlox
[12:45] <Darkside> are you parsing NMEA?
[12:45] <Darkside> or binary
[12:45] <perseus> using the ntx2 RF TX with USB
[12:45] <Darkside> good :)
[12:45] <perseus> nmea
[12:46] <Darkside> then you can just swap out the gps module
[12:46] <Darkside> srsly
[12:46] <Darkside> uBlox's are *awesome* for HAB work
[12:46] <perseus> converted to high/lows for ntx2
[12:46] <Darkside> never had a problem with them
[12:46] <perseus> problem is the module is a telit ge862
[12:47] <Darkside> i think the lassen IQ's also go to altitude too, but they don't have as good sensitivity as the uBlox's
[12:47] <Darkside> yep, other people have used them, and they crap out at 18km
[12:47] <perseus> using the gsm side of it aswell
[12:47] <Darkside> then add another GPS
[12:47] <perseus> thinking of it, yes
[12:47] <Darkside> do you really want no data above 18km?
[12:48] <Darkside> a) you won't know where it is
[12:48] <Darkside> b) you won't know how high it got
[12:48] <perseus> this is my first project
[12:48] <perseus> if i can successfully retreive it, i will be happy
[12:48] <Darkside> then get another gps
[12:48] <Darkside> >_>
[12:49] <Darkside> you can get the FSA03 modules from a few places, and just solder onto the pads
[12:49] <perseus> so, if you know for a fact that i will probably loose the thing, then i must get a ublox
[12:49] <Darkside> or sparkfun and the like sell a few uBlox based GPS modules
[12:49] <Darkside> well, uBlox is the tried and tested module that basically everyoen in here uses
[12:49] <perseus> then ill sent to gps modules up
[12:49] <Darkside> yep
[12:50] <Darkside> use gps uBlox GPS data
[12:50] <perseus> think thats the way to go
[12:50] <Darkside> argh
[12:50] <Darkside> use the uBlox for GPS, and use the other module for GSM
[12:50] <Darkside> maybe you can disable the other modules GPS unit to save power too
[12:50] <perseus> sounds good :)
[12:50] <Darkside> :)
[12:50] <Darkside> i really don't want to see people loose their payloads
[12:51] <perseus> i worked for quite a bit untill i realized i will have to send another gps
[12:51] <Darkside> not when its soo easily preventable
[12:51] <Darkside> it sucks that so many GPS receivers dont support high altitudes
[12:51] <Darkside> but i guess given the target market it's understandable
[12:51] <perseus> problem now is the micro, only one serial interface\
[12:51] <Darkside> how were you planning on using the GSM module with the GPS too anyway
[12:52] <Darkside> also what micro
[12:52] <perseus> using a pic18f atm, communicating with rs232 to telit gps/gsm module
[12:52] <Darkside> ahhh
[12:52] <Darkside> hrmmm
[12:52] <Darkside> so that module sends out NMEA as well as ACKS from the gsm module?
[12:53] <Darkside> or is it one way communication to the GSM module
[12:53] <perseus> two way
[12:53] <Darkside> so it can send back either NMEA data, or data from the GSM module?
[12:53] <perseus> at commands, with the acks
[12:53] <Darkside> ahh ok
[12:53] <perseus> so, ill disconnect the telit from the micro
[12:53] <Darkside> if you dont care so much about the acks, you could do software serial
[12:54] <perseus> and let it work on the internal python code by its own
[12:54] <Darkside> and just bitbang commands to the GSM module, then put the GPS on the UART
[12:55] <perseus> yes, then just the ublox on the micro
[12:55] <perseus> for the tracking
[12:55] <Darkside> yeah
[12:55] <Darkside> what receiver are you using?
[12:55] <perseus> atm a handheld aor ar8200mkIII
[12:56] <Darkside> cool
[12:56] <Darkside> whatever works
[12:56] <perseus> i've tested it at a few kilometres on the ground, and it works nicely
[12:56] <Darkside> nice
[12:56] <Darkside> the NTX2 method is another tried-and-tested thing that we do :P
[12:56] <perseus> just hopes it will work all the friggen 30km way\
[12:56] <Darkside> it probably will
[12:57] <perseus> yes, thanks to the info on the ukhas wiki :)
[12:57] <Darkside> what country are you launching in?
[12:57] <perseus> south africa, dunno if anyone done it here before
[12:57] <Darkside> heh ok
[12:57] <Darkside> i duno either
[12:57] <Darkside> i hope it doesn't land in zimbabwe or something >_>
[12:57] <perseus> but yes, my development work is almost finished
[12:58] <perseus> me too ;)
[12:59] <perseus> problem is gsm signal is very scarce where i will launche
[12:59] <Darkside> dont rely on GSM
[12:59] <Darkside> always have backup
[12:59] <perseus> so yes, i hope the rf works
[13:00] <eroomde> radio >> sms
[13:01] <Darkside> yup
[13:01] <Darkside> also radoi means you can use spacenear.us
[13:01] <Darkside> which is always useful
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[13:02] <perseus> whats the principle of that?
[13:03] <Darkside> online tracking of the balloon
[13:04] <Darkside> and it means other people in the area can listen and upload data too
[13:04] <Darkside> make contact with the local amateur radio groups in oyour area
[13:04] <Darkside> and see if any of them can listen in too
[13:04] <perseus> im sure there will be a few
[13:04] <Darkside> yeah
[13:05] <perseus> so someone uploads the data while the balloon is in the air?
[13:05] <Darkside> nah, i mean they receive the transmission from the balloons, and upload the data to the website
[13:05] <eroomde> everyone running the dl-fldigi program automatically uploads any decoded telemetry from the balloon to that online map
[13:05] <Darkside> that way theres redundancy
[13:06] <Darkside> so if your radio craps out, you have backup
[13:06] <eroomde> ground radio ^
[13:06] <perseus> oh, ok. good system, i will try to find a few hams in the area
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[13:33] <fsphil> uh-oh, my source for helium can't get me any for the weekend
[13:36] <groupo> kidnap a clown
[13:38] <fsphil> urg, and risk going to clown prison?
[13:40] <groupo> you're right, the risk is to high! :)
[13:40] <groupo> *too
[13:41] <fsphil> I couldn't only take so much of red noses and baggy trousers
[13:41] <fsphil> -'t
[13:41] <fsphil> plus clowns are really creepy
[13:42] <fsphil> mm.. there's a few places that do wedding balloons in the town. shall ping them
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[13:54] <fsphil> really really high altitude: http://www.flickr.com/photos/magisstra/5468108286
[13:56] <groupo> awesome
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[14:02] <eroomde> cute
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[15:05] <W0OTM> Hello WOrld
[15:05] <fsphil> o/
[15:05] <W0OTM> sup sup
[15:05] <fsphil> the sun is out, everyone's in shock :)
[15:08] <fsphil> ooh, more funcube dongles on sale tomorrow night
[15:10] <Hibby> groupo: ping
[15:11] <groupo> Hibby: pong
[15:12] <groupo> Hibby: busy today?
[15:12] <NigeyS> sun? what is this sun you speak of fsphil ?
[15:12] <Laurenceb> nice
[15:12] <fsphil> it's real NigeyS, I saw it with my own eyes!
[15:13] <Laurenceb> how much are the dongles?
[15:13] Action: Laurenceb isnt convinced it works, but...
[15:13] <NigeyS> noo it cant have been, must be an illusion im sorry to tell you.
[15:13] <Hibby> aye, classes all day. Want to quickly jump to the office at 15:30? Need a coffee//escape from this lab
[15:13] <fsphil> £124 atm
[15:14] <Laurenceb> wow
[15:14] <groupo> yeh il get u up there
[15:14] <Laurenceb> crazy cheap
[15:14] <Laurenceb> might get one just to test
[15:14] <fsphil> yea I got one last time, going to use it on the next balloon flight
[15:14] <Laurenceb> have you tested it for harmonic rejection?
[15:14] <Laurenceb> thats what fails to convince me about it
[15:15] <Laurenceb> i cant see how it rejects 2f, 3f etc
[15:15] <fsphil> nah, just done a bit of general receiving
[15:15] <Laurenceb> i see
[15:15] <Laurenceb> whats the lna noise floor like?
[15:16] <fsphil> I've nothing to compare it with unfortunately
[15:16] <fsphil> I can take a sample if you want
[15:16] <Laurenceb> nvm then
[15:16] <Laurenceb> the pic firmware is open isnt it?
[15:18] <m1x10> http://www.nasa.gov/multimedia/isslivestream.asx
[15:18] <m1x10> lol! whos that guy?
[15:18] <fsphil> nope, they had to have an NDA for some of the components parts
[15:19] <Laurenceb> bah
[15:19] <Laurenceb> :(
[15:20] <fsphil> yea
[15:20] <Laurenceb> im just not convinced it can work
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[15:20] <Laurenceb> those DVBT ics always need a SAW filter on the front
[15:21] <fsphil> good frequency coverage though - I was able to just about receive the space shuttle communications with it
[15:21] <Laurenceb> neat
[15:21] <Laurenceb> as the local osc is chock full of harmonics
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[15:22] <Laurenceb> theres a very high frequency VCO thats divided down using counters
[15:22] <Laurenceb> so its basically square wave
[15:26] <Laurenceb> http://pics.livejournal.com/misstiajournal/pic/00228e85
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[15:32] <W0OTM> how is the cold temps (32F) going to effect my launch? Will I expect a lower burst alt?
[15:32] <W0OTM> 32F on the ground, im assuming even colder at alt
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[15:34] <Hibby> groupo: that's me up here
[15:34] <groupo> Hibby: enroute
[15:43] <fsphil> I've heard that cold temperatures make for better launches
[15:43] <fsphil> but it's no fun at all :)
[15:46] <eroomde> W0OTM: infact it makes less difference at alt
[15:46] <eroomde> if your helium starts off warmer than the outside compared to usual, you will get more lift
[15:47] <eroomde> for a given mass o helium
[15:47] <eroomde> as the temp equlases the lift will decrease
[15:47] <eroomde> so you will actually probably get a higher burst alt
[15:47] <W0OTM> oh, so He lift coefficient is relative to the ambient temp?
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[15:47] <eroomde> however, usually the helium going into a balloon is pretty cold anyway thanks to enthalpy change as it expands in the regulator
[15:48] <W0OTM> we are going to fill indoors, then walk it outside for launch
[15:48] <eroomde> W0OTM: well, it's relative to the density difference, and density is affected by temp
[15:48] <W0OTM> eroomde: ahh, gotcha ok
[15:49] <eroomde> if you let the balloon equalise to room temp after filling it, you'll get more lift, which will be nice
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[15:51] <Laurenceb> roboteddy?
[15:51] <eroomde> ?
[15:52] <Laurenceb> on nasa tv
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[16:06] <mattltm> Hi Hi!
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[16:08] <fsphil> lo lo
[16:15] <NigeyS> middle middle
[16:17] <mattltm> howdy ho!
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[16:45] <fsphil> I'd forgotten how difficult it is to get helium
[16:46] <mattltm> :(
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[16:47] <SpeedEvil> fsphil: Smash some hydrogen together.
[16:47] <fsphil> that may have ... side effects
[16:48] <groupo> lol
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[16:52] <mattltm> I think that I may need some profesional help.
[16:52] <fsphil> We're listening...
[16:52] <mattltm> My weather station RX was loosing sensor contact abot twice per hour..
[16:53] <mattltm> And it we realy bothering me...
[16:53] <mattltm> So ive just opened it up, ripped out the silly wire antenna..
[16:53] <mattltm> and replaced it with an sma socket on a fly lead.
[16:53] <SpeedEvil> Which plugs into the rx?
[16:53] <mattltm> Now its got a 60cm long 433 colinier attached to it!
[16:54] <SpeedEvil> Ah. :)
[16:54] <SpeedEvil> Sounds sensible.
[16:54] <SpeedEvil> I thought you were going to say it was a massive stacked yagi array.
[16:54] <mattltm> Ummm....
[16:55] <mattltm> Now there is an idea..
[16:55] <fsphil> d'oh!
[16:56] <mattltm> http://www.mattltm.co.uk/wp-content/uploads/2011/03/IMAG0194.jpg
[16:56] <mattltm> No lost sensor contact so far :)
[16:56] <SpeedEvil> :)
[16:57] <fsphil> you should see my video sender .. have wired a satellite dish onto it
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[16:57] <mattltm> Maybe I could start a WX RX DX challange?
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[17:01] <fsphil> WX DX via meteor scatter
[17:01] <mattltm> WX RX DX MS. YAY!
[17:03] <fsphil> actually, you've given me an idea about remote monitoring solar panels
[17:06] <mattltm> IP! IP! My idea! :P
[17:06] <mattltm> I'll have 10% ta :)
[17:07] <fsphil> 10% of -£5 .. ok
[17:07] <mattltm> lol.
[17:08] <mattltm> I work closely with the local Innovation and Growth team. You should hear someof the "great" ideas people come up with!
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[17:09] <NigeyS> when they come up with a cloud filter for optical telescopes let me know ;)
[17:10] <fsphil> I could help you, but it may cost £60 million
[17:10] <mattltm> My fave was a guy who wanted 5K to develop a stick to probe for land mines.
[17:10] <mattltm> It was actualy just a wooden dowel.
[17:10] <NigeyS> fsphil, you're cheap :P
[17:10] <SpeedEvil> ...
[17:11] <NigeyS> lmao
[17:11] <mattltm> He saidhe needed the money for R&D and testing as a lot of the probes would get damaged!
[17:11] <NigeyS> oh dear
[17:11] <Zuph> A family friend is a patent attorney. At least once a week, she is approached by someone trying to patent a device which violates the laws of thermodynamics.
[17:12] <NigeyS> lol Zuph
[17:12] <mattltm> Lol
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[17:16] <NigeyS> i want to be a tree
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[17:18] <Dan-K2VOL> mornin zuph
[17:18] <Dan-K2VOL> I hope I don't die as a result of lack of sleep
[17:18] <Dan-K2VOL> :-P
[17:18] <NigeyS> we'll prop you up till you launch dan
[17:18] <Dan-K2VOL> thanks NigeyS!
[17:19] <Dan-K2VOL> got Skype linked into Mumble last night
[17:19] <Zuph> Morning Dan-K2VOL
[17:19] <NigeyS> ahh nice 1
[17:19] <Zuph> Maybe you should take a nap :-p
[17:19] <Dan-K2VOL> so that the ATC Liason team can 3-way with Mumble and call the ATC centers, and be heard on mumble as they do so, AND have their calls automatically recorded
[17:20] <Dan-K2VOL> oh let me tell you, my desk is looking like a waterbed right now
[17:20] <Zuph> hah
[17:20] <Dan-K2VOL> I realized that HF telemetry is a very low priority, and that Joe L has really been not doing anything to prep the ATC team
[17:20] <NigeyS> Zuph, if he doesnt sleep soon .. get some clorophome (sp)
[17:20] <Dan-K2VOL> so I've had to switch to that
[17:21] <Zuph> Dan-K2VOL: Roger that.
[17:21] <Dan-K2VOL> sketched out a timeline and operations plans on the whiteboard las tnight
[17:21] <Dan-K2VOL> for ATC interactions
[17:21] <Zuph> I'm probably an hour or so away from cloning SpaceNear on our servers. Thesis work has been busy this morning, though.
[17:21] <Dan-K2VOL> Tim and I got that skype/mumble link working
[17:22] <Dan-K2VOL> cool
[17:22] <Dan-K2VOL> is it going to be a clone or will we be able to put our links and stuff on there
[17:24] <Zuph> We'll be able to brand it.
[17:24] <Dan-K2VOL> yeehaw
[17:24] <Dan-K2VOL> good work friend
[17:24] <Dan-K2VOL> tested ALL uplink commands with bill P last night
[17:24] <Dan-K2VOL> most appeared to go thru comm ctrlr fine, but a majority I couldn't see any response on the flight controller debug
[17:25] <Zuph> Yeah, most of them operate silently to save flash space.
[17:25] <Zuph> You'll have to do a data dump to see the change.
[17:28] <Zuph> I've tested out all the commands with the bus pirate: If the comm controller sends the commands, they'll do what they should.
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[17:37] Nick change: Nigey|S -> NigeyS
[17:38] <NigeyS> silly nickserv
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[17:42] <mattltm> Wow. Someone is having a right old rant on 2M!
[17:43] <NigeyS> :o
[17:43] <mattltm> he has been going to 20 minutes now on the calling freq!
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[17:49] <fsphil> tsk tsk
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[17:58] <W0OTM> .
[17:59] <NigeyS> ..
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[18:05] <fsphil> ,
[18:05] <fsphil> a silly way of getting live video over an NTX2: http://www.youtube.com/watch?v=1ShYefsbnAE
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[18:38] <Zuph> Success! http://track.whitestarballoon.com/
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[18:42] <Laurenceb_> mattltm: landmine detection is an interesting challenge
[18:49] Action: Laurenceb_ was wondering if some of the archaeological surveying techniques would be useful
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[18:50] <Laurenceb_> magnetic permeability in particular
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[18:50] <Laurenceb_> quadcopter equipped with fluxgate for e.g.
[18:50] <fsphil> silly internet
[18:50] <spacefelix> Zuph: Is that the real deal or a simulated flight?
[18:50] <Zuph> spacefelix: simulated
[18:50] <spacefelix> Zuph: Cool.
[18:50] <spacefelix> Are you part of the next Hackerspaces In Space Competition?
[18:50] <Zuph> Nope.
[18:50] <spacefelix> I've heard that the goal is to fly across the Atlantic.
[18:50] <spacefelix> Ah.
[18:50] <Zuph> Not as far as I know.
[18:50] <Zuph> I think their challenge ended in October, and they were doing a simple up-and-down.
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[18:50] <SpeedEvil> I like the WWII one.
[18:50] <SpeedEvil> Stupidly massive catherine wheel type thing.
[18:50] <SpeedEvil> Other fun ideas include kinetically powered flux compression EMP generators.
[18:50] <SpeedEvil> Inside 50 cal bullets.
[18:50] <SpeedEvil> To generate a large pulse of RF.
[18:53] <Laurenceb_> what for?
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[18:58] <Laurenceb_> fluxgate?
[19:00] <Dan-K2VOL> anyone read the novel Singularity by Bill DeSmedt?
[19:02] <Dan-K2VOL> pretty neat concept that the Tunguska explosion was actually a micro black hole that entered the earth and was orbiting the core in an eliptical orbit underground, and they used a chain of magnetic gates under the ocean to capture it
[19:02] <Dan-K2VOL> and use it for time travel and all kinds of silliness
[19:03] <Zuph> That sounds a little silly.
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[19:03] <Laurenceb_> wtf
[19:03] <Laurenceb_> someone needs to smoke less weed
[19:04] <mattltm> Iss pass in 8 mins :)
[19:04] <SpeedEvil> Makes more sense than Dan Brown.
[19:04] <SpeedEvil> Oooh!
[19:04] Action: SpeedEvil checks
[19:04] <Dan-K2VOL> haha it was actually a pretty good sci-fi novel, particularly for being released as a free audiobook online
[19:05] <SpeedEvil> Ok - 28 degrees, SSW, 19:15:23 here
[19:08] <mattltm> 19:12pm 3 minutes, 33 degrees elevation. Arr 21 above WSW, Dep 22 above SE for me
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[19:10] <Zuph> ping Dan-K2VOL
[19:10] Action: mattltm goes outside...
[19:11] <LazyLeopard> Cloud from horizon to horizon here.
[19:12] <Dan-K2VOL> hey zuph
[19:13] <Zuph> Dan-K2VOL: track.whitestarballoon.com
[19:13] <Zuph> I told you I'd have it done before lunch. I still haven't eaten lunch, so it counts.
[19:13] <Laurenceb_> http://www.ukweatherworld.co.uk/forum/forums/thread-view.asp?tid=7952&start=1
[19:13] <Dan-K2VOL> haha
[19:14] <Laurenceb_> i guess not that mad
[19:14] <SpeedEvil> Oh well - always tomorrow.
[19:15] <SpeedEvil> Also cloud
[19:15] <Dan-K2VOL> very nice Zuph! does it pull from the backend spacenear.us database?
[19:15] <Zuph> Indirectly.
[19:16] <Dan-K2VOL> very nice
[19:16] <Zuph> We clone the spacenear database to our master db, which then gets cloned to each public server.
[19:16] <Dan-K2VOL> gotcha
[19:16] <Dan-K2VOL> latency on that?
[19:16] <Zuph> So, there's up to a 2 minute delay in data from spacenear to track.whitestar
[19:16] <Dan-K2VOL> oh not bad at all
[19:16] <Zuph> No.
[19:17] <Zuph> HF data isn't getting pushed to track.whitestar, due to Bill's crummy XOR checksum, to avoid bad data getting into the public db.
[19:17] <mattltm> Good pass :)
[19:17] <Dan-K2VOL> so I assume other launches will wander through from time to time?
[19:17] <mattltm> Very bright.
[19:17] <Dan-K2VOL> ;-)
[19:17] <Dan-K2VOL> which is fine :-)
[19:17] <Zuph> Nope, our stuff is filtered for Orbcomm data only
[19:17] <Dan-K2VOL> wtf is wrong with bill's checksum
[19:17] <Dan-K2VOL> and does he know
[19:17] <Dan-K2VOL> ok
[19:18] <mattltm> ISS/Shuttle - Fri Mar 4th at 19:39pm 2 minutes, 22 degrees elevation. Arr 15 above WSW, Dep 20 above S
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[19:18] <Zuph> XOR has always been a crummy checksum. Most Spacenear launches now use CRC16, which is much better.
[19:18] <Dan-K2VOL> ah
[19:18] <Dan-K2VOL> yes, it is crummy
[19:18] <LazyLeopard> mattltm: Cloud from horizon to horizon here.
[19:19] <mattltm> LazyLeopard: Sham, that was a nice pass.
[19:20] <LazyLeopard> ;)
[19:21] <LazyLeopard> Saw a good one last night though.
[19:27] <mattltm> Yup last nights was good.
[19:28] <mattltm> Whats the maximum height you think a qaudcopter could go?
[19:28] <SpeedEvil> No real limit
[19:28] <SpeedEvil> Same as a helicopter really
[19:29] <SpeedEvil> It all depends on disk loading.
[19:29] <mattltm> so an autonomus one would only be limited by battery capacity?
[19:29] <SpeedEvil> At some point, the rotor tips will break the sound barrier, but the air densirty will be so low that you won't get adequate lift.
[19:29] <mattltm> Ah..
[19:30] <SpeedEvil> But 10Km should be 'easy'
[19:30] <SpeedEvil> Thoughbatteries would be an extreme problem to get to that altitude.
[19:30] <SpeedEvil> I have a design for a vectored thrust helicopter to get to 4Km in 3 min or so.
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[19:30] <mattltm> Very nice :)
[19:30] <SpeedEvil> And then autoland.
[19:31] <Hiena> Actually the quadcopter efficiency is lover than an average helicopter, because each rotor has lower propulsion efficiency.
[19:31] <Hiena> -v+w
[19:32] <SpeedEvil> If you have the rotors sufficiently seperated from each other, ans sufficiently large, this isn't an issue.
[19:32] <SpeedEvil> But sufficiently large probably means you need to go to swash plates, not variable RPM
[19:33] <mattltm> I do like the look of the octocopter :)
[19:33] <mattltm> And the redundancy
[19:33] Action: SpeedEvil looks at his design for a centacopter.
[19:34] <mattltm> Yay!
[19:35] <Hiena> Nope. If you have same disk area, still you have 4, 1/4th area rotor. And the propulsion efficiency is proportional with the rotor disk area.
[19:36] <mattltm> Ching! Ah.. I see how that works :)
[19:37] <SpeedEvil> Yeah, I'm assuming that the disk loading is the same.
[19:37] <Dan-K2VOL> mattltm, every aircraft has what's called a 'service ceiling'
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[19:38] <SpeedEvil> The service ceiling may be significantly under the aerodynamically achievable altitude, for a number of reasons though.
[19:38] <Dan-K2VOL> that's the point at which, if using aerodynamic lift like propellor or wings, the air is too thin to provide enough lift with the maximum power output of the engine
[19:39] <mattltm> Yup. I was just wondering what the theretical limit would be.
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[19:39] <Dan-K2VOL> and you top out at that point, but you approach it asymptotically, so it's a darn long boring last 5%
[19:39] <SpeedEvil> Even without limit of available power, you eventually hit other limits, like the propellor/rotor needing to go supersonic, which greatly increases stresses.
[19:42] <Dan-K2VOL> well, you just need to calculate the lift force of the propeller, and the drag force, when they equal you won't go any higher
[19:42] <Dan-K2VOL> granted I don't know how to do that
[19:42] <mattltm> :)
[19:43] <SpeedEvil> I recommend http://en.wikipedia.org/wiki/Proposition_19
[19:43] <SpeedEvil> Err - no.
[19:43] <SpeedEvil> Not that.
[19:43] <Dan-K2VOL> I don't think so SpeedEvil, I've reached the ceiling of a Cessna 150 before, and I'm not sure there was any sonic booms :=P
[19:43] <Dan-K2VOL> i could be wrong :-)
[19:43] <SpeedEvil> http://www.drivecalc.de/PropCalc/index.html
[19:43] <mattltm> lol @ SpeedEvil!
[19:43] <SpeedEvil> Dan-K2VOL: yeah - that's one limit
[19:44] <SpeedEvil> I have a bad habit of using awesomebar without actually checking what I'm ciopying and pasting, or waiting for the page to load.
[19:44] <W0OTM> anyone around?
[19:44] <W0OTM> need help
[19:44] <SpeedEvil> No.
[19:44] <W0OTM> Air density at 0C,101 kPa
[19:44] <SpeedEvil> About 1.4Kg/m^3
[19:44] <W0OTM> how do I calc that?
[19:44] <SpeedEvil> you look it up
[19:44] <SpeedEvil> Or you can go from first principles.
[19:45] <SpeedEvil> You know the mix of gasses.
[19:45] <W0OTM> can you just answer in english?
[19:45] <SpeedEvil> Then you work it out from the total partial pressures of all gasses, knowing the molar amounts.
[19:45] <W0OTM> doesnt make any sense to me
[19:46] <SpeedEvil> W0OTM: So look it up
[19:46] <W0OTM> SpeedEvil: thanks
[19:46] <SpeedEvil> http://en.wikipedia.org/wiki/Density_of_air
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[19:47] <W0OTM> SpeedEvil: thats really helpful. That tells me exactly how to calc the "Air density at 0C,101 kPa" in the burst calc
[19:47] <Nigey|S> http://www.natrium42.com/halo/flight2/burst.xls
[19:48] <W0OTM> Nigey|S: thats exactly the one im using
[19:48] <Nigey|S> oh
[19:48] <W0OTM> but im sure I need to calc "Air density at 0C,101 kPa" and "Air Density Model"
[19:49] <W0OTM> or do those values not need changing?
[19:49] <Nigey|S> i think theyre pretty much ok as is
[19:50] <W0OTM> ahh, I see : Air density model based on NRLMSISE Standard Atmosphere Model - good to 80Km
[19:50] <DanielRichman> http://www.srcf.ucam.org/~cuspaceflight/calc/
[19:53] <Dan-K2VOL> try this w0otm http://digital-dutch.com/atmoscalc/
[19:55] <Zuph> Worth noting, the Karman line is determined by the altitude at which a craft would have to be traveling at orbital velocity in order to derive enough lift to support itself (based on a large number of reasonable engineering assumptions, and rounded to the reasonable value of exactly 100 km).
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[20:18] <rjharrison_> evening all
[20:18] <rjharrison_> ping eroomde
[20:19] Nick change: rjharrison_ -> rjharrison
[20:19] <rjharrison> eveing Upu
[20:19] <rjharrison> hey Laurenceb you about
[20:31] <fsphil> g'day rjharrison
[20:31] <Dan-K2VOL> hello rjharrison
[20:33] <rjharrison> hi guys
[20:33] <rjharrison> Been playing with CC1110 chip on 434.075 trying for two way coms
[20:33] <rjharrison> At the moment the signal seems very wide so somehting is going wrong
[20:35] <spacefelix> Hello.
[20:35] <spacefelix> Those familiar with radio and plasma wave signals, what do you make of this? http://www.youtube.com/watch?v=pGeWBiLVn8g
[20:36] <spacefelix> It is a video clip of a sound file from the Cassini Spacecraft's radio and plasma wave sensors.
[20:36] <spacefelix> The sound has been raised 12 tones in pitch and a pattern emerges.
[20:36] <spacefelix> Is the pattern just the natural rythm of its source or an intellgent signal?
[20:38] <Dan-K2VOL> an intelligent signal? as in a spurious emission from a cassini subsystem?
[20:38] <spacefelix> That is the question.
[20:38] <spacefelix> Just another signal that naturally occurs from the rythm of a system?
[20:38] <spacefelix> Or an intelligent signal?
[20:39] <spacefelix> Or just a really cool piece of music to remix and autotune? ;)
[20:39] <Dan-K2VOL> I don't think that's even an appropriate question, it's so far from the realm of probability
[20:40] <Dan-K2VOL> the question is what spacecraft subsystem or sampling technique produced this
[20:40] <spacefelix> Hmm.
[20:40] <spacefelix> What do you mean?
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[20:43] <rjharrison> spacefelix I don't think this will be hailed as the momenet we found we were not alone...
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[20:43] <spacefelix> rjharrison: LOL. ;)
[20:44] <Dan-K2VOL> from our scientific exploration of the solar system, it is clear that it is highly improbable that there is any form of life in the solar system off of earth, and life with radio signals is ridiculously improbably
[20:44] <Dan-K2VOL> e
[20:44] Action: spacefelix retireves Drake Equation.
[20:44] <Dan-K2VOL> there's no point in considering the improbable until you have completely ruled out the probable
[20:44] <Dan-K2VOL> it's a waste of time
[20:44] <DanielRichman> I got bored and skipped through the video, but it looks like the guy just changed the frequency of the main lump of noise in that using some audio editor - which probably added even more spurious stuff - unitl the sound was roughly in the range of voice-after-distorted radio, and claimed a discovery.
[20:45] <Dan-K2VOL> how about you retrieive science data from all the solar system space probes
[20:45] <Dan-K2VOL> and the inverse square law
[20:45] <Dan-K2VOL> and the gain of cassini's receivers
[20:45] <Dan-K2VOL> and the distance to the nearest star systems
[20:46] Action: spacefelix points Dan-K2VOL to JPL's data files: http://saturn.jpl.nasa.gov/multimedia/images/saturn/audio/pia07967-072504.wav
[20:47] <Dan-K2VOL> I don't even need to see the data to know what is probable for Cassini to be receiving, because I'm familiar with the things I just asked you to get familiar with
[20:48] <Dan-K2VOL> that's your answer as to what the signal is - cassini isn't powerful enough to receive any radio signal from another star system, it can barely receive earth with a giant-ass dish antenna pointed straight at earth
[20:48] <spacefelix> Dan-K2VOL: Hold on Dan, there's no need to get excited.
[20:48] <spacefelix> Dan-K2VOL: So in effect, you are saying that the signal is likely a natural local phenomenon?
[20:49] <Dan-K2VOL> sure there is, our society is riddled with conspiracy theory and ignorance that damages the credibility of real facts, it shouldn't be promulgated any further than it can be stopped at.
[20:49] <Zuph> Dan-K2VOL: Ah, but a level 3 civilization could construct some sort of parabolic dish into the side of a dyson sphere!
[20:49] <Zuph> Perhaps using some sort of Ultra-Nylon.
[20:50] <spacefelix> Zuph: You forgot the Neutronium.
[20:51] <Zuph> I mean, If *I* were a super technologically advanced civilization, I know the first thing I would do is point my ultra-high-gain transmitter at a position in space which has the highest possible probability of containing a minor extant probe when the signal arrives.
[20:51] <Zuph> *minor extant probe of a fledgling civilization which is just as likely to destroy itself as it is to make it to even the closest of rocks.
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[20:55] <Dan-K2VOL> hehe
[20:56] <GW8RAK> Evening All. (Just been told I sound like Dixon of Dock Green for saying that!) I've got a u-blox gps module which fits into a PLCC84 carrier. The pins are very close together and a double row. Any suggestions on soldering to a home brewed pcb?
[20:56] <Nigey|S> women grrrrrrr
[20:57] <GW8RAK> How did you guess it was a woman's comment?
[20:57] <Nigey|S> lol psychic
[20:58] <Dan-K2VOL> Spacefelix, what I said was this: "the question is what spacecraft subsystem or sampling technique produced this" it's most likely a local natural phenomenon that's been made to sound odd by the technique used to record it. The spacecraft is moving at orbital velocities, and this causes frequencies to constantly rise as it approaches sources of radio energy
[20:58] <spacefelix> Dan-K2VOL: Okay, cool.
[20:58] <mattltm> Anyone know much about binding applicaions to ports in Linux?
[20:58] <Nigey|S> GW8RAK, that sounds like its going to be a knightmare
[20:59] <spacefelix> Dan-K2VOL: Thanks.
[20:59] <GW8RAK> Looking at the manual, I only need to connect to 9 pins, including 4 power pins
[20:59] <Nigey|S> oh, that could be doable
[20:59] <GW8RAK> Don't want to directly solder to the module.
[21:00] <Dan-K2VOL> spacefelix, yw. I highly recommend checking out carl sagan's cosmos TV series on Hulu or Netflix if you haven't seen it already.
[21:00] <GW8RAK> But the pins are only on two sides of the PLCC84
[21:00] <GW8RAK> So it's really a half PLCC84
[21:00] <spacefelix> Dan-K2VOL: YES! I have! It is awesome.
[21:01] <GW8RAK> (now I'm getting comments about user names :))
[21:02] <GW8RAK> 19 pins needed, not 9
[21:03] <spacefelix> Dan-K2VOL: This one of Sagan is cool: http://www.youtube.com/watch?v=zSgiXGELjbc
[21:07] <Dan-K2VOL> yeah those are cool
[21:09] <mattltm> I officially retract my previous statement "Eagle is fun".
[21:09] <fsphil> ;)
[21:09] <Nigey|S> fun?
[21:09] <Nigey|S> no
[21:09] <Nigey|S> its evil..
[21:09] <Zuph> I like Eagle :)
[21:10] <Nigey|S> it hates me Zuph :(
[21:10] <Zuph> heh
[21:10] <mattltm> And replace it with "Eagle makes me want to slap myself with a large haddock"
[21:10] <Nigey|S> lmao
[21:10] <Nigey|S> ping Upu
[21:11] <Laurenceb_> rofl
[21:11] <Dan-K2VOL> spacefelix your question reminded me of the japanese samurai crabs
[21:11] <mattltm> How the hell do you guy build stuff that works with this tool of a tool?
[21:11] <Laurenceb_> eagle isnt too bad once you learn your way around the part editor
[21:11] <spacefelix> Dan-K2VOL: ?
[21:11] <Nigey|S> it took me 2 hours yesterday to figure out i couldnt change a drill size in the brd, only possible to do via the library file .. meh !
[21:12] <Laurenceb_> lol
[21:12] <mattltm> Wow
[21:12] <Dan-K2VOL> remember when carl talked about the crabs in a certain bay of Japan, that have a human face shape on the back of their carapace? In fact it almost perfectly looks like a japanese face
[21:12] <Nigey|S> japanese people evolved from crabs? :|
[21:12] <Dan-K2VOL> mattltm, I'd recommend the sparkfun tutorials of Eagle
[21:12] <Dan-K2VOL> and use their part libary!
[21:12] <Dan-K2VOL> and their suggested settings
[21:13] <mattltm> Good call Dan :)
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[21:13] <Nigey|S> ya def use the SF cam file ;)
[21:13] <mattltm> I guess it's a case of RTFM :p
[21:13] <Nigey|S> evening James
[21:13] <Dan-K2VOL> don't trust the eagle library parts that come with it
[21:13] <Dan-K2VOL> too hit or miss
[21:14] <Dan-K2VOL> well, really a case of RTF3rdPartyTutorialMadeCauseTheManualSucks
[21:14] <Laurenceb_> eeeeek http://en.wikipedia.org/wiki/File:Laser_diode_array.jpg
[21:14] <Nigey|S> lol Dan
[21:14] <Laurenceb_> thatd vaporise your face let alone your eyes
[21:14] <jcoxon> evening
[21:14] <mattltm> lol @ Dan
[21:14] <Nigey|S> yeah it does look kinda dangerous :|
[21:15] <Dan-K2VOL> hey James
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[21:16] <jcoxon> just popping in will be back in about an hour
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[21:30] <fsphil> aah stripboard, the solution to all your eagle problems :)
[21:30] <GW8RAK> NigeyS looks like I can get a socket with pins for the PLCC84 with .1" spacing.
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[21:31] <GW8RAK> So it should fit on veroboard.
[21:31] <Nigey|S> yups that should do it
[21:31] <GW8RAK> Found a reference to mounting it upside down on the pcb and just soldering to the pins.
[21:31] <GW8RAK> A bit like dead bug style
[21:31] <mattltm> fsphil: Cooking on gas now. The Sparkfun tutorial is good.
[21:33] <GW8RAK> Now I've just to make up the minimum order value from Farnell
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[21:33] <fsphil> mattltm, ooh will have to check them out
[21:34] <Nigey|S> GW8RAK, 15quid aint it ?
[21:34] <GW8RAK> I think it is. I do need some more bits, so I should get there.
[21:35] <GW8RAK> For the first flight, I'm considering two GPS so I can prove that my preferred on doesn't shut off at 18km.
[21:35] Action: SpeedEvil wishes he had problems making up minimum orders for farnell.
[21:35] <GW8RAK> on = one
[21:35] <SpeedEvil> Or even digikey.
[21:36] <GW8RAK> It's often easy to get up to the minimum order, because the parts are more expensive than anywhere else.
[21:36] <Nigey|S> haha good point
[21:37] <fsphil> I hate it when I order like that, and an hour later realise I forgot a resistor
[21:37] <fsphil> like 10p
[21:37] <Nigey|S> how much are farnells resistors? radpids are really cheap
[21:37] <GW8RAK> Forgetting the cheapest component is mandatory.
[21:38] <fsphil> oh so it's not just me then? :D
[21:38] <GW8RAK> I was lucky and bought another amateurs junk box which has given me every resistor and capacitor in the range.
[21:38] <GW8RAK> Not all construction types, just values.
[21:39] <GW8RAK> Haven't had to buy a passive in years.
[21:39] <Nigey|S> think ive go tmost above 220kohm now
[21:39] <Nigey|S> 220*
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[21:43] <GW8RAK> Getting the minimum order isn't difficult when the sockets come in multiples of 5 :(
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[22:05] <mattltm> Nope. Eagle still sucks.
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[22:07] <fsphil> what gotcha this time?
[22:07] <mattltm> Linking nets of all thnigs!
[22:08] <mattltm> Novice stuff I guess.
[22:10] <fsphil> I'm starting to fall out with stripboard too
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[22:40] <mattltm> Dog walk time. See you later guys...
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[22:42] <jcoxon> back
[22:43] <fsphil> wb!
[22:46] <jcoxon> fsphil, you launching this weekend?
[22:48] <rjharrison> hey jcoxon
[22:48] <fsphil> I'm hoping so jcoxon, slight problem with helium though - will know tomorrow
[22:48] <rjharrison> jcoxon do you know where the git is for the tracker?
[22:49] <rjharrison> or anyone else for that matter
[22:49] <jcoxon> i'm not sure there is one
[22:49] <jcoxon> you updating ?
[22:49] <rjharrison> Yep I was going too
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[22:50] <rjharrison> Only the one I have is a little old and should a backup be required it would be nice if it was the same
[22:50] <jcoxon> cool
[22:50] <MSP> Hello all
[22:50] <jcoxon> rjharrison, yeah sensible
[22:50] <jcoxon> the whitestar guys have cloned spacenear.us onto their super servers
[22:51] <jcoxon> so the traffic shouldn't be 'too' high
[22:51] <rjharrison> hey cool
[22:51] <MSP> <--- Noob here
[22:51] <jcoxon> hi MSP
[22:51] <MSP> :)
[22:51] <rjharrison> hi msp
[22:51] <MSP> am glad to have found like minds
[22:51] <rjharrison> I'll ask alexis if it's possible to have a recent copy
[22:52] <MSP> been boring ppl at work with my ideas ;)
[22:52] <jcoxon> rjharrison, good plan
[22:52] <rjharrison> MSP where are you up too
[22:52] <MSP> am in uk
[22:52] <MSP> proper got the HAB bug
[22:52] <rjharrison> Cool that's about 60% of us on here
[22:52] <MSP> nice
[22:53] <MSP> have started collecting gear
[22:53] <rjharrison> Cool any back ground in this
[22:53] <rjharrison> electronics, computing ...
[22:53] <MSP> am a bit stuck with radio receiver
[22:53] <MSP> computing but not hard coder
[22:54] <MSP> electronics a bit from back in the day
[22:54] <rjharrison> cool you're about to embark on a great learning curve
[22:54] <MSP> 90% enthusisasm 10%skills
[22:54] <MSP> blimey can say that again
[22:54] <rjharrison> its not that hard but you will burn up a few hours
[22:54] <MSP> have put in a few already
[22:55] <MSP> got interested when i picked up an arduino
[22:55] <rjharrison> Typical from thought to launch is typically 8-12 months
[22:55] <MSP> balls
[22:55] <MSP> was hoping to launch june/july
[22:55] <rjharrison> Cool do you have kids / wife?
[22:55] <MSP> started thinkin maybe a month ago
[22:56] <jcoxon> you'll be fine
[22:56] <MSP> son but lives with his mum
[22:56] <jcoxon> its a good time to aim for
[22:56] <jcoxon> nice weather fingers crossed
[22:56] <rjharrison> Oh ok so you have some time on your hands
[22:56] <MSP> I was thinkin thatd be least windy
[22:56] <jcoxon> Jetstream doesn't run by those rules :-p
[22:56] <rjharrison> It's the jet streams that are the real problem
[22:56] <rjharrison> hehe beat me
[22:57] <MSP> LOL, rj, between a full time job at a uni and doing a pt phd, this is my stay sane hobby
[22:57] <jcoxon> http://www.hamradio.co.uk/lynchline/showthread.php?t=6642
[22:57] <MSP> yeah jet stream am still working on
[22:57] <rjharrison> MSP this will give you some idea when to launch http://www.srcf.ucam.org/~cuspaceflight/hourly-predictions/
[22:57] <MSP> nice
[22:57] <jcoxon> that big is easy
[22:57] <jcoxon> bit*
[22:57] <jcoxon> rjharrison, http://habhub.org/predict/
[22:58] <rjharrison> ooh times move on
[22:58] <jcoxon> keep up
[22:58] <MSP> ah right the cusf one ive been playing with already
[22:58] <MSP> i end up off the coast folkestone or hasting depending on wind, lol
[22:58] <fsphil> lol
[22:59] <jcoxon> MSP, where abouts in the UK are you?
[22:59] <MSP> luton town.. beds
[22:59] <jcoxon> cool cool
[22:59] <rjharrison> jcoxon, is there an hourly on HABHUB
[23:01] <jcoxon> nah still use the cusf one
[23:02] <jonsowman> I've been meaning to do that for a while
[23:03] <jcoxon> PBH-13 launches in 12hrs 26mins
[23:04] <jcoxon> altitude attempt with ZP i think
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[23:07] <MSP> how often are people launching then, I thought this was still a pretty 'eccentric' pastime
[23:07] <Nigey|S> hey Zuph
[23:07] <Zuph> Hola Nigey|S
[23:07] <jcoxon> MSP, well people are quite dictated by weather, in the UK about once a month
[23:07] <rjharrison> jcoxon I have over 270 launches in the db now
[23:08] <jcoxon> but in the summer its sometimes more
[23:08] <jcoxon> rjharrison, surely lots are just test data
[23:08] <fsphil> there was a flurry of launches over the winter too
[23:08] <MSP> I read somewhere that more ppl go up everest or swim channel than do this
[23:08] <rjharrison> jcoxon and some chases but still a lot
[23:09] <rjharrison> wb8elk has been busy
[23:09] <rjharrison> unless that's all test data
[23:09] <jcoxon> no no he launches about fortnightly
[23:10] <Zuph> Anything associated with White Star is all test data :)
[23:10] <LazyLeopard> PBH? Whose is that?
[23:11] <rjharrison> http://pastebin.com/cEhni2vX
[23:11] <rjharrison> That's 50 launches for bill
[23:11] <Zuph> Project Blue Horizon, out of Cornell University
[23:11] <Zuph> Bunch of Engineering Students. Clever guys, bankrolled by Lockheed Martin.
[23:12] <LazyLeopard> Ah. Over that side. ;)
[23:12] <rjharrison> Zuph yep not quite in the amature league me thinks
[23:12] <Zuph> They toe that line.
[23:15] <MSP> I know this gonna sound bad but any sub £100 radios?
[23:15] <fsphil> ebay -- sometimes
[23:15] <MSP> am a big ebay fan but really not sure what specs I should be lookin for
[23:15] <fsphil> Yaesu FT790R
[23:16] <fsphil> chiefly the ability to receive side-band (SSB) signals on the 70cm band
[23:17] <fsphil> unfortunately that does limit the choices quite a bit, as most 70cm radios can only do FM
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[23:17] <MSP> hmmm yeah found a bunch of 70cm on ebay
[23:17] <jcoxon> MSP, it really needs SSB
[23:17] <MSP> but wasnt sure about the ssb
[23:18] <MSP> yeah I guess thats why Im here to get this kind of clarification
[23:19] <MSP> so something like an old motorola gp680 wouldn't hack it then?
[23:20] <MSP> *gp68
[23:21] <jcoxon> ping natrium42
[23:22] <SpeedEvil> Will it do SSB?>
[23:22] <jcoxon> MSP looking at the specs i can't see any reference to ssb - so no
[23:22] <MSP> ah ok
[23:23] <MSP> :(
[23:23] <MSP> but :) I have spotted an aor8000
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[23:24] <MSP> also, how do I ping?
[23:25] <jcoxon> oh its just a convention
[23:25] <jcoxon> by mentioning the username it'll alert them
[23:25] <jcoxon> the ping bit doesn't do anything
[23:25] <MSP> jcoxon ?
[23:26] <jcoxon> you were refering to when i just did 'ping natrium42' i assume
[23:26] <MSP> yes
[23:27] <jcoxon> by mentioning 'natrium42' it means that his irc client would have beeped or made some sort of alert
[23:27] <rjharrison> http://pastebin.com/Yj3iqDdK
[23:27] <rjharrison> hey jcoxon this is a closer apprximation of launches
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[23:27] <MSP> I was assuming you meant he might know about the dismissed gp68
[23:27] <jcoxon> oh no
[23:27] <jcoxon> something else
[23:27] <jcoxon> rjharrison, yeah looks good
[23:28] <MSP> ah right
[23:29] <jcoxon> night all
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[23:30] <rjharrison> in crono order
[23:30] <rjharrison> http://pastebin.com/16inUrkF
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[23:31] <rjharrison> nights all
[23:31] rjharrison (~rharrison@ left irc:
[23:31] <MSP> wow
[23:31] <fsphil> either my internet sucks, or freenodes does :)
[23:32] <MSP> you keep dropping off fsphil?
[23:32] <fsphil> yea, about 5 times today
[23:32] <MSP> you on wireless?
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[23:33] <fsphil> all wired
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[23:35] <natrium42> d'oh, i missed rjharrison again
[23:35] <MSP> he just left natrium
[23:36] <MSP> think I wasmeant to ping you but didn't really know how :)
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[23:40] <MSP> right chaps time to make a move, good luck with you net fsphil
[23:40] <fsphil> ta ;)
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[23:44] <Nigey|S> hmm cambridge have a 32m radio telescope? :|
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[23:53] <natrium42> Zuph: so, how was cloning?
[23:53] <natrium42> all works?
[23:54] <Zuph> natrium42: Working out pretty well. Messing with some settings and branding now :)
[23:54] <natrium42> cool
[23:54] <Zuph> track.whitestarballoon.com
[23:54] <natrium42> make sure to search&replace wb8elk2 in the files if you change callsign to speedball-1
[23:54] <Zuph> Can clone identical AWS servers to meet capacity in under 1 minute/cloned server, each server has no more than 2 minute latency from spacenear.us
[23:54] <natrium42> i added some hacks
[23:54] <Zuph> ah
[23:57] <Zuph> heh, when I turn on twitter, other launches show up :)
[23:57] <natrium42> how are you filtering it to wb8elk2 only?
[23:58] <natrium42> adding everything then removing?
[23:58] <natrium42> because that could result in points from other launches getting through
[23:58] <natrium42> if you do it that way, you need to lock the db for reading
[23:59] <Zuph> I do a mysqldump on spacenear, then immediately do a delete where callsign!='orbcomm'
[23:59] <natrium42> well, there is your problem :P
[23:59] <SpeedEvil> http://www.solar-components.com/aerogel.htm hmm
[23:59] <Zuph> Oh, other launches with orbcomm radios? :-p
[23:59] <natrium42> no, but browser request may go before the delete
[23:59] <natrium42> you have a racing condition
[00:00] <natrium42> you really need to lock it
[00:00] --- Fri Mar 4 2011