highaltitude.log.20091022

[00:03] <Laurenceb> cya all
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[00:03] <MikeMc> bye
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[07:56] <SpeedEvil> L http://www.magritek.com/terranovafeatures.html
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[11:17] <Laurenceb> sup
[11:29] <Laurenceb> SpeedEvil: ping
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[13:09] <juxta_> there's was a link floating around the other day in here regarding makfing up a yagi with some metal pipe & welding rods - anybody know it off the top of their head?
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[13:28] <SpeedEvil> Laurenceb:
[13:28] <Laurenceb> yo
[13:28] <SpeedEvil> hhttp://www.magritek.com/terranovafeatures.html
[13:29] <Laurenceb> I was looking at those fans
[13:29] <Laurenceb> you could use 16 for sure
[13:29] <Laurenceb> and 2 for propulsion
[13:30] <SpeedEvil> what's 2kg get you anyway?
[13:30] <Laurenceb> 9m/sec or so
[13:30] <SpeedEvil> really?
[13:30] <SpeedEvil> counting body drag - or are you doing a lougeboard
[13:31] <Laurenceb> with body drag
[13:31] <SpeedEvil> sounds low - though I've not done the numbers.
[13:32] <SpeedEvil> braking?
[13:32] <Laurenceb> one on either side with a handheld control
[13:32] <Laurenceb> so you can spin it through 180 degrees
[13:33] <SpeedEvil> hmm
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[14:11] <juxta_> has anybody built a 70cm handi-tenna here?
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[15:29] <rjharrison> Can somebody fix the weather
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[15:58] <MikeMc> howdy
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[16:13] <Laurenceb> I built a moxon antenna
[16:13] <Laurenceb> not too hard
[16:16] <SpeedEvil> Does it ant properly?
[16:16] <Laurenceb> yeah, you can turn of the agc
[16:16] <Laurenceb> and see the increasing noise
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[16:48] <Laurenceb> http://englishrussia.com/images/wedding_cakes/1.jpg I like this wedding cake
[16:52] <SpeedEvil> My preferred cake: http://www.jsrpages.co.uk/scanse/eleniak/Erika_Eleniak-Under_Seige-01.jpg
[16:59] <MikeMc> The cake is a lie
[17:00] Action: DanielRichman shoots MikeMc
[17:01] <MikeMc> :P
[17:01] <DanielRichman> MikeMc, please present your "the cake is a lie" license for inspection...
[17:01] <MikeMc> I would do but it was cake flavoured so I ate it
[17:02] <DanielRichman> looks like it's the party escort submission position for you then
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[17:09] <MikeMc> sounds intruiging
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[17:11] <MikeMc> ..in disgust
[17:13] <DanielRichman> be back later
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[17:25] <juxta_> would a J-pole antenna tuned to 434mhz be of any use tracking a HAB?
[17:28] <MikeMc> should work
[17:29] <sbasuita> juxta_, it would work, but you could do better
[17:29] <sbasuita> ie. with a directional antenna
[17:30] <juxta_> I think I might try make up a jpole and a moxon
[17:30] <sbasuita> when tracking your own balloon you should have a directional
[17:30] <juxta_> the j pole would be better for just following the balloon in the car through, wouldn't it? (so long as were relatively close)
[17:32] <sbasuita> juxta_, yes
[17:32] <sbasuita> juxta_, but the balloon isn't going to be travelling so fast that you have to chase it
[17:33] <sbasuita> juxta_, so you'd be stopped by the road most of the time
[17:33] <juxta_> fair enough
[17:34] <juxta_> any idea what sort of range could one expect with a 25mW NTX2 and an omnidirectional antenna like a jpole or a whip?
[17:36] <MikeMc> 25mW?
[17:37] <MikeMc> won't that be illegal?
[17:37] <sbasuita> MikeMc, in the UK I believe so
[17:38] <MikeMc> is Juxta not in the UK?
[17:38] <sbasuita> MikeMc, no idea ;)
[17:38] <juxta_> I'm in Australia :)
[17:38] <juxta_> 25mW is the limit here
[17:38] <MikeMc> oh in which case do what you like
[17:38] <MikeMc> lol
[17:38] <juxta_> haha
[17:38] <juxta_> but even assuming 10mW
[17:38] <sbasuita> juxta_, what's the wind like down in australia?
[17:38] <juxta_> I mean I know people have had 300km with yagi's
[17:39] <sbasuita> juxta_, with a directional and 10mW you don't need to be worrying about range in the sky
[17:39] <sbasuita> juxta_, it's all about being close when it hits the ground
[17:39] <sbasuita> but i guess in australia that isn't too much of a problem as its just outback?
[17:39] <juxta_> pretty good sbasuita, not too much wind. predictions have showed we might get deviation of 50-100km, depending on the winds
[17:40] <juxta_> yeah - where I will be launching there's nothing around for a long, long way :)
[17:40] <sbasuita> juxta_, lucky you ;)
[17:40] <juxta_> haha
[17:40] <juxta_> well, in one sense
[17:40] <juxta_> on the other hand, no GSM backup :)
[17:41] <MikeMc> just make it tumbleweed shaped it will end up near an antenna eventually
[17:42] <juxta_> I'm trying to get a rough idea what kind of range a whip or some other omni would give whilst airborne, I dont want to be leaning out the window holding a yagi whilst driving ;p
[17:42] <juxta_> haha
[17:42] <sbasuita> juxta_, maybe think about putting bright lights on it for landing if you have long uninterrupted sight?
[17:42] <juxta_> sbasuita: yeah, I was planning on having some flashing lights on it
[17:43] <sbasuita> UFO <3
[17:43] <juxta_> as well as one of those little screaming 110dB siren things
[17:43] <sbasuita> xP
[17:43] <MikeMc> make it explode on impact and make a mushroom cloud
[17:43] <juxta_> haha
[17:44] <juxta_> would a whip be enough range to follow on the ground in a car? ie if you were right under it, would you get say 90,000 feet out of a whip on the roof of the car? =\
[17:45] <sbasuita> juxta_, yes
[17:45] <sbasuita> juxta_, although remember your whip has a blind spot where it points
[17:46] <SpeedEvil> juxta_: As long as you don't go under any bridges.
[17:46] <SpeedEvil> Also - your car may tip over in even moderate winds
[17:46] <juxta_> hehe, no bridges where I'll be launching
[17:46] <MikeMc> not many bridges in Oz full stop
[17:47] <MikeMc> ones you drive under that is
[17:47] <juxta_> well, not much water here ;p
[17:48] <juxta_> ok, now I need to figure out somewhere to find a 434mhz whip
[17:49] <MikeMc> ebay
[17:49] <juxta_> looks like they cost about $15 in the US, so that means probably at least $40 here
[17:49] <MikeMc> or make one
[17:49] <juxta_> yeah, I think make might be the way to go
[17:49] <juxta_> there's nothing here
[17:50] <juxta_> is there a UHF CB band in the UK?
[17:51] <MikeMc> lol i just noticed what speedevil wrote
[17:51] <juxta_> about my car blowing over? ;p
[17:53] <MikeMc> yeah
[17:54] <MikeMc> In the UK CB radio is in the 27MHz band only
[17:55] <juxta_> we have 27mhz here too
[17:55] <russss> there's PMR on 446MHz
[17:55] <juxta_> but it's primarily 477mhz here
[17:55] <juxta_> which means searching any australian store for anything to do with UHF finds only UHF CB stuff
[17:55] <russss> but I think 446MHz is quite a lot more restricted than 27MHz
[18:01] <juxta_> i think bed time for me
[18:01] <juxta_> thanks for your input all :)
[18:01] <MikeMc> cya
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[18:51] <Laurenceb> http://englishrussia.com/?p=5360#more-5360
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[19:37] <edmoore> anyone with a spotify invite going spare?
[19:42] <sbasuita> edmoore, you don't need one
[19:43] <sbasuita> edmoore, I remember exposing a sign up page a few days ago - let me look it up
[19:43] <edmoore> fo free spotify?
[19:43] <sbasuita> edmoore, yes
[19:43] <sbasuita> edmoore, https://www.spotify.com/en/get-started/
[19:43] <sbasuita> edmoore, i think that works
[19:44] <edmoore> marv, ta
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[21:45] <SpeedEvil> Electricat http://www.ssplprints.com/lowres/43/main/42/121761.jpg
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[22:39] <rjharrison> evening all
[22:39] <rjharrison> Icarus III is now in full working order
[22:40] <rjharrison> jcoxon how close is balast halo to launch?
[22:40] <rjharrison> ballast
[22:41] <rjharrison> sbasuita, you and dan nearly ready?
[22:41] <rjharrison> 23.7 dec C in here
[22:42] <rjharrison> hi edmoore
[22:43] <edmoore> hi
[22:43] <edmoore> just doing a bit of iplayer then bed
[22:43] <rjharrison> Oh cool
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[22:43] <fuzzylugnuts> Hello
[22:43] <rjharrison> replace the 4.7R with 4k7R and my temp sensors are working nicly
[22:43] <rjharrison> hey fuzzylugnuts
[22:44] <SpeedEvil> 14c in here
[22:44] <rjharrison> brrrr
[22:44] <rjharrison> U in the shed :)
[22:44] <SpeedEvil> No. Bed
[22:44] <SpeedEvil> blankets cheaper than heating. warm and toasty
[22:44] <rjharrison> Yep alot cheaper
[22:48] <fuzzylugnuts> plus, lots of heavy blankets feels nice
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[23:03] <fuzzylugnuts> MADNESS.
[23:03] <fuzzylugnuts> I've never seen 6 screws come out of the inside of a gps before, on thier own, totally internally
[23:04] <fuzzylugnuts> I have a trimble geo xh for maintenance
[23:04] <fuzzylugnuts> and like, a crapload of screws are rattling around inside
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[23:06] <fuzzylugnuts> its not something I would expect from a 6kilobuck instrument
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[23:46] <sbasuita> rjharrison, well, the camera's deeply worrying me, so that needs sorting out with some thorough testing. Need to get a yagi constructed properly. Then build the payload. Should probably make an estimate on weight and order the parachute and balloon. Then I'd like to do more testing with descent speeds.
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[23:52] <RocketBoy> Someone with access to a tall building - could do some useful descent rate testing - especially if its indoors.
[23:53] <Randomskk> how tall? :p
[23:54] <RocketBoy> 30ft or more I'd say
[23:55] <RocketBoy> then film descent - and get timing and height info
[23:55] <RocketBoy> I'd be happy to supply a range of chutes for testing
[23:56] <rjharrison> sbasuita DO YOU REALLY NEED TO KNOW DESCENT RATES
[23:56] <rjharrison> opps
[23:57] <sbasuita> rjharrison, you scared me :P
[23:57] <sbasuita> rjharrison, it is nice to know it won't come plummeting down
[23:57] <rjharrison> Oh it wont do that with a moderate chute
[23:57] <Randomskk> it is caps lock appreciation day
[23:57] <rjharrison> yep
[23:57] <sbasuita> hehe
[23:57] <rjharrison> sorry about that
[23:58] <Randomskk> no, really, it is
[23:58] <Randomskk> http://capslockday.com/
[23:58] <sbasuita> also nice to know the payload won't break on impact
[23:58] <rjharrison> WELL IN THAT CASE
[23:58] <sbasuita> if its been through it five times, it should survive the sixth
[23:58] <sbasuita> WE HAVE TWO MINUTES OF CRUISE CONTROL REMAINING
[23:58] <rjharrison> LOL
[23:58] <sbasuita> LET'S MAKE THE MOST OF IT BY POSTING RANDOM EXCLAMATIONS
[23:59] <Randomskk> ONE MINUTE LEFT
[23:59] <Randomskk> OH GOSH BUT WE ARE UTC+1
[23:59] <rjharrison> IN ALL MY EXPERIANCE THE DESCENT IS MORE DEPENDENT ON BALOON BURSTING CLEANLY OR NOT
[23:59] <natrium42> HI GUYS
[23:59] <Randomskk> DOES THAT AFFECT THE INITIAL CONDITIONS ENOUGH TO MAKE A BIG DIFFERENCE?
[23:59] <rjharrison> YOU CAN EASILY BRING BACK AN ADDITIONAL 1.5KG WHICH THROWS OUT THE CALCS A BIT
[00:00] --- Fri Oct 23 2009