highaltitude.log.20140525

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[00:10] <KT5TK> http://kt5tk.wordpress.com/
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[00:18] <KT5TK> Hi DL7AD
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[01:00] <Maxell> KT5TK: very nice.
[01:01] <Maxell> Intresting low amount of APRS packets. Intentional?
[01:10] <ulfr> Conspiracy.
[01:17] <Maxell> alienz?
[01:17] <Maxell> afk
[01:23] <ulfr> I'm not saying it's aliens.
[01:23] <ulfr> But. Aliens
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[04:19] <KT5TK> Yes, 15 min cycle is intentional. We want to save power as good as we can. The tracker puts itself into sleep mode and shuts off the GPS and VCXO enirely in the sleep periods.
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[07:06] <DL7AD_> good morning!
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[07:09] <en4rab> morning
[07:12] <sp2ipt> hi
[07:13] <DL7AD_> KT5TK-4 is still not present on spacenear
[07:14] <DL7AD_> does anyone have current information about B-52?
[07:16] <MightyMik> b-52 may have to warm up a bit before it does anything
[07:17] <DL7AD_> should be already done
[07:27] <KT5TK> DL7AD Did you launch yesterday?
[07:28] <DL7AD_> KT5TK: yes
[07:28] <KT5TK> success?
[07:28] <jededu> Launching BAHUDE today at approx 9:30
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[07:41] <DL7AD_> KT5TK: partially. its has been launched, the payload worked, and we retrieved the package.
[07:42] <DL7AD_> KT5TK: but we did not get it back by receiving the RTTY but the GSM-tracker. 600 baud had been too fast for transmitting the position. and we had a bad position for receiving it
[07:42] <DL7AD_> so we lost the signal very early
[07:43] <KT5TK> Great. I was wondering because I haven't seen a track
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[07:43] <KT5TK> You have some nice video?
[07:45] <DL7AD_> KT5TK: not yet. the proccess of copying the data took too long yesterday. i will get the videos tomorrow
[07:45] <KT5TK> Cool!
[07:48] <DL7AD_> we had an gopro in one package
[07:49] <DL7AD_> and note: the gopro with gsm tracker had a weight of 700g. the image-transmitting package only a weight of 250g :P
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[08:14] <DL7AD_> KT5TK: how long does the balloon need to fly over the gulf?
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[08:39] <G8APZ> BAHUDE seems to be airborne
[08:39] <Geoff-G8DHE-M> BAHUDE is up I think
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[08:45] <G6SUQ_Graham> what freq for BAHUDE?, is it .650?
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[08:45] <mikestir> .570
[08:45] <G6SUQ_Graham> okay, thanks
[08:48] Nick change: mikestir -> mikestir_M0MKS
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[08:49] <mikestir_M0MKS> ascent's a bit slow
[08:55] <G8APZ> first decode beyond 0 degrees horizon says Badude!
[08:56] <G8APZ> left tone looks rather weaker than right one
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[08:57] <LeoBodnar> oh, launch! XD
[08:57] <LeoBodnar> morning
[08:58] <LeoBodnar> 3.3m/s - is it intended to float?
[08:59] <Steve_G0TDJ> Morning Leo :-)
[08:59] <LeoBodnar> Morning Steve! XD
[09:00] <Steve_G0TDJ> I'm oging out in about an hour but it's good to get some tracking in first ;-)
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[09:02] <G8APZ_> BAHUDE 189km range from here ... very good stable sigs 434.5712 for left tone on 1000
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[09:08] <SP9UOB-Tom> morning all
[09:08] <Steve_G0TDJ> Hi Tom :-) - BAHUDE Travelling away from me and behind terrain. Won't hear it for a while.
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[09:10] <SP9UOB-Tom> Steve_G0TDJ: its ascending, so it will come back to waterfall ;-)
[09:10] <Steve_G0TDJ> Hope so :-)
[09:11] <SP9UOB-Tom> habitat export vs backlog comparsion: http://goo.gl/maps/uGiVt
[09:11] <G6SUQ_Graham> what are the chances of Leo's B52 coming back into range of the UK?
[09:12] <LeoBodnar> well its vertical speed is 2.5m/s while "going away" speed is 11m/s
[09:12] <SP9UOB-Tom> G6SUQ_Graham: im not receiving B52 here in Poland
[09:12] <G8APZ_> no B-52 data since yesterday?
[09:12] <SP9UOB-Tom> hi Leo
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[09:12] <LeoBodnar> hi Tom
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[09:12] <LeoBodnar> Something happened to B-52
[09:13] <G8APZ_> maybe it is hiding
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[09:13] <G6SUQ_Graham> Leo ... planning any more flights? (silly question, I know) ... gonna tell us when?
[09:13] <G8APZ_> or shot down over Kiev!
[09:13] <LeoBodnar> maybe MiG
[09:13] <SP9UOB-Tom> ou SU
[09:13] <LeoBodnar> not sure Graham, winds look a bit weird
[09:13] <SP9UOB-Tom> or SU
[09:14] <G6SUQ_Graham> 'wierd wind' has never stopped you before!
[09:14] <mikestir_M0MKS> by weird do you mean "going up north"?
[09:14] <SP9UOB-Tom> really nice propagation @50 MHz
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[09:15] <LeoBodnar> precis! XD [10:14] <mikestir_M0MKS> by weird do you mean "going up north"?
[09:16] <Geoff-G8DHE> Do you have to pay the M6 Toll when you cross it ?
[09:16] <SP9UOB-Tom> LeoBodnar: B52 was higher every day, envelope stretching?
[09:20] <Maxell> BAHUDE: dial 434.570MHz (RTTY, 7N2, 50 Baud)?
[09:21] <LeoBodnar> yeah, it did not drop anything ;)
[09:21] <SP9UOB-Tom> LeoBodnar: hahahhaah :-)
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[09:25] <G8APZ> Maxell 434.5715 with signal centred on 1000Hz
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[09:32] <Maxell> G8APZ: ok thnx
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[09:43] <LeoBodnar> what balloon is BAHUDE?
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[09:44] <daveake> 100g Pawan I believe
[09:45] <LeoBodnar> i think somebody managed to make them float
[09:45] <LeoBodnar> about a year ago down under?
[09:46] <G8APZ> 100g PAWAN, Helium
[09:46] <daveake> No NOTAM, which is a bit marginal
[09:46] <DL1SGP> morning :)
[09:47] <G8APZ> Maxell 434.5710 with signal centred on 1000Hz - slow drift LF
[09:47] <LeoBodnar> is it the one that has been modded to burst <2m?
[09:47] <LeoBodnar> by Steve's request
[09:47] <daveake> no idea hadn't heard of that
[09:47] <Upu> huh ? having lol yeah ?
[09:48] <daveake> oh sry bit slow :)
[09:49] <DL1SGP> according to the mail that Jed sent it is set to burst at 20k meters
[09:49] <daveake> Likely to be > 2m then imo
[09:49] <DL1SGP> but later he changed that to 15k
[09:49] <DL1SGP> due to prediction changes
[09:50] <DL1SGP> I am not sure where when and if it will burst at all :P
[09:50] Action: DL1SGP needs a cuppa
[09:50] <daveake> I think a floater will probably be OK but they burst diameter is > 2m
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[09:52] <DL1SGP> however, I like the idea of launching some balloon to test the local tracking equipment :) that is a nice approach for entire community
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[09:53] <LeoBodnar> oh really? XD
[09:53] <DL1SGP> you must be doing a lot of testing then Leo :D
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[09:55] <GW8RAK> Morning all. I've found a uBlox GPS module which is designed to fit into a socket. On two sides, it has 21 spring pins, i.e. not designed to be soldered. Does anyone know what the name of the socket is please?
[09:56] <Upu> got a link ?
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[09:57] <bertrik> I was at a flora/fauna hackathon yesterday, saw a nice bird tracker. Actually a bit similar to balloon trackers I think. It too had a solar cell, lithium batteries, GPS and a radio, except the radio was used to upload GPS points once the bird is back at its nest.
[09:57] <GW8RAK> Trying to find anything on the uBlox website
[09:58] <DL1SGP> sounds kool bertrik, so the RX must was triggered in some way to send the telemetry or was it all location triggered transmission?
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[09:59] <GW8RAK> Don't know why Google didn't find it first time around. PLCC-84
[10:00] <mikestir_M0MKS> retro
[10:00] <bertrik> DL1SGP: I don't know, both seem to make sense. I was told, GPS data was automatically uploaded to a receiver near the nest.
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[10:01] <bertrik> They had a pretty cool offline demo, with the 3d bird flight path showing up on a layar kind of display.
[10:01] <DL1SGP> bertrik: over here they have trackers on rabbits :D one is just a simple beacon to DF the rough location and the other system is a 9k6 data transmission for getting the waypoints back.
[10:01] <G8APZ> gw8rak compare BING results with Google - I've been getting far better hits with BING - though I hate to sya it!
[10:02] <G8APZ> sya = say
[10:03] <mikestir_M0MKS> GW8RAK: is it the GPS-MS1?
[10:03] <DL1SGP> G8APZ: it's IRC do not worry about typos, typonese is accepted official language :D
[10:03] <G8APZ> DL1SGP KO!
[10:04] <bertrik> DL1SGP: I'll try to contact the bird tracker people, I have a feeling they can improve their tracker by looking at balloon trackers, like the ones made by LeoBodnar
[10:04] <DL1SGP> good luck bertrik :) better geese than goats :P
[10:05] <DL1SGP> though geese can mutate to ninja style as well
[10:06] <DL1SGP> anyhow, time for going to the polling station, be back in a bit
[10:07] <G8APZ> I don't know if I'm imagining it, but sig seems weaker, despite higher altitude
[10:09] <G8APZ> Strange thing too about Google Maps.... my local railway station and line is NOT shown on it any more!
[10:10] <G8APZ> Sigs about to arrive in Holland
[10:10] <GW8RAK> mikestir_M0MKS yes. It is the MS1
[10:11] <mikestir_M0MKS> late 90s vintage?
[10:11] <GW8RAK> Don't remember even obtaining this one, so no ideas.
[10:12] <mikestir_M0MKS> sirfstar 2 based by the looks of things. it's ancient
[10:14] <mikestir_M0MKS> bahude looks like it might be another to go right over ibanezmatt's house when he's not looking
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[10:16] <GW8RAK> Just trying to collect all my GPSs in one place.
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[10:20] <G8APZ> BAHUDE spot on 434.570 with sig centred at 1000
[10:22] <bertrik> G8APZ: it's starting to appear here at the receiver at the hague, netherlands
[10:23] <G8APZ> bertrik is that beyond 0 degrees horizon? I received it well beyond 0 degrees!
[10:25] <bertrik> just very very slightly below horizon, according to the spacenear map
[10:25] <bertrik> but we're not getting useful decodes yet
[10:25] <G8APZ> OK - you'll decode very soon
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[10:31] <DutchMillbt> Good morning UKhabbers what's BAHUDE's frequency?
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[10:32] <bertrik> 434.570
[10:32] <DutchMillbt> thankz bertrik
[10:33] <G8FJG> 434.569000 for 1400 hz centre
[10:35] <bertrik> yay, first green decodes for bahube :)
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[10:36] <DutchMillbt> Green is always good ;-)
[10:37] <DL1SGP> yay bertrik
[10:39] <bertrik> it's decoding badly now, but the good one was at 420 km range
[10:40] <DL1SGP> congrats bertrik it is flying to the wrong direction for getting audible here :)
[10:42] <craag> Upu: Cheers for the bug report. Geoff reported it to me yesterday and I've fixed it (yay unicode), but don't have the time right now to rebuild the windows dev environment to compile a new one :/
[10:42] <craag> I'll get a fixed version out end of next week I hope
[10:43] <craag> On the off chance that you have python set up on windows - you can just run the py script
[10:44] <craag> But I suggest not going there if you don't
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[10:47] <G8FJG> being new to this, what sort of s/n level do people see forthis flight? Ron G8FJG
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[10:48] <Upu> no problems
[10:48] <Upu> that payload is so close it doesn't matter where I point the antenna atm
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[10:50] <craag> As I'll be going to the effort of doing another build - nows the time to get other paper-cut fixes and new features in!
[10:51] <craag> stick a headless RTTY decoder on the side?
[10:53] <DutchMillbt> G8FJG the s/n = 21dB at my location ( JO21cx)
[10:54] <Geoff-G8DHE-M> Mines running around 25db
[10:54] <Maxell> DutchMillbt: hey!
[10:55] <DutchMillbt> Hi Maxell
[10:55] <G8FJG> thanks for that , I'm in the ball park!
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[10:56] <mikestir_M0MKS> oh it's burst
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[10:57] <Maxell> DutchMillbt: on marktplaats I found a tegelvoet in 's-Gravenzande to mount my X-30: http://blog.tuxie.com/wp-content/uploads/2013/06/20130630-212849.jpg
[10:57] <Jed_edu> Burst :)
[10:59] <DutchMillbt> Aha nice Maxell 's-Gravenzande rocks
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[11:00] <Maxell> DutchMillbt: the "mast" will be 2 meters long http://link.marktplaats.nl/m811978614
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[11:01] <G6SUQ_Graham> anyone know anything about the MOD1 and MOD2 balloons that have appeared on the map?
[11:01] <Maxell> But I might go for the full 4 meters of pipe so I can get maximum horizon http://blog.tuxie.com/wp-content/uploads/2013/06/20130630-212826.jpg
[11:02] <DutchMillbt> Min Off Defence?
[11:02] <Maxell> Just wondering if those two extra meters will be worth the hassle of mounting an extra pipe on it and having to make it havier.
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[11:03] <DutchMillbt> Maxell a bit oversizing is always wise
[11:04] <Maxell> DutchMillbt: I am wondering how stable it will be.
[11:04] <Maxell> And if it will hold.
[11:04] <DutchMillbt> Jus wait for the first storm than you know ;-)
[11:04] <craag> Maxell: Is there any way you could also guy it?
[11:06] <DutchMillbt> kinndig.. ask the people of the radioclub
[11:07] <DL1SGP> you could lower the terrain around your antenna =)
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[11:08] <Maxell> craag: No idea. I still have to get up there some time soon.
[11:08] <G8APZ> Maxell 2m extra will make virtually no difference to the horizon in a flat country like Holland
[11:09] <Maxell> G8APZ: well, does it?
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[11:09] <Maxell> G8APZ: I'd rather not go the extra two meters because that would make it harder to keep the mast upright.
[11:10] <G8APZ> Maxell quite right! wind will have a stronger bending/tipping over force with 4m
[11:11] <PE2G> Maxell: No buildings in the way (near you)?
[11:11] <Maxell> And if the two extra meters are negligible I'd rather not quadrate the force :)
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[11:12] <Maxell> PE2G: RevSpace setup has the whole centrum of The Hague it has too pass. I'm much closer to the sea.
[11:14] <PE2G> Maxell: That's nice. Then, the extra 2 m won't bring much
[11:16] <Maxell> I have to cross about 3 kilometers of city to reach the North Sea bearing UK
[11:16] <Maxell> https://i.imgur.com/K5cD3ym.png
[11:16] <DutchMillbt> Maxell and a few sandbags will also help
[11:17] <Maxell> DutchMillbt: It's called a tegelvoet because you put tegels in it :)
[11:17] <Maxell> And yes sure you might also put some extra weight on it for the sake of it.
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[11:19] <G7UXW-Kevin> Bahude fading fast here in
[11:19] <G7UXW-Kevin> Godalming
[11:19] <G6SUQ_Graham> same here ... w London
[11:20] <G8APZ> still going strong in Brentwood Essex
[11:20] <G6SUQ_Graham> maybe it will come back? I had good sigs at 0.6 degrees, at the moment it's at 1.6
[11:21] <G8APZ> 0.5 here
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[11:21] <G8FJG> I just love living on the mud flats 2mtrs asl
[11:21] <G7UXW-Kevin> still got faint trace
[11:21] <DutchMillbt> yes of course Maxell
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[11:22] <G7UXW-Kevin> freq climbing faST
[11:23] <G8APZ> +25dB s/n at 0.4 elev
[11:24] <G8APZ> +22dB s/n at 0.3 elev
[11:25] <G7UXW-Kevin> burst
[11:25] <G6SUQ_Graham> gone completely for me now, but a good flight anyway
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[11:26] <G7UXW-Kevin> yup so whats next to track B-52 whats the story there ???
[11:26] <G8APZ> +20dB at 0.1 elev
[11:27] <G6SUQ_Graham> I cant imagine that B52 will come back in range ... but I would be happy to be proved wrong
[11:28] <G8APZ> +18dB s/n and decode errors creeping in...
[11:28] <G8APZ> elev 0 and still decoding, but will probably lose it very soon
[11:29] <G8FJG> still see it but last partial $$$$BAHUDE,912,11:26:19,53.78,1.7C20
[11:30] <G8APZ> just partials here - can still SEE the trace but audio going down rapidly
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[11:30] <G8FJG> that was very much a V pol signal all the time
[11:31] <G8APZ> Trace all but gone now on block 936
[11:32] <G7UXW-Kevin> last partial here no 871
[11:32] <G8APZ> Upu it's Upu to You to track to the landing!
[11:33] <G8FJG> no sight but the birdie that came up about 1khz hf sill there!
[11:37] <G7UXW-Kevin> I cant find any details for MOD-1 or its chase
[11:37] <G7UXW-Kevin> anyone help me out here ??
[11:38] <G6SUQ_Graham> MOD-1 may just be testing ... it's not flying
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[11:41] <mikestir_M0MKS> those pesky pennines
[11:41] <G7UXW-Kevin> ok
[11:42] <G6SUQ_Graham> also, the last sig from MOD-1 was 40 minutes ago, so may not even be TXing any more
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[11:57] <Jed_edu> is it still transmitting?
[11:58] <mikestir_M0MKS> it's on the ground
[11:58] <mikestir_M0MKS> are you not chasing?
[11:59] <Jed_edu> yes on route, i didnt predict that
[12:00] <craag> Local elevation is ~100m, so it's probably around the back of the Tesco Express
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[12:02] <Upu> hi
[12:02] <Will> Hi Upu
[12:03] <Upu> does anyone know if 2E0KPI is going after it ?
[12:03] <Jed_edu> upu good little tracker
[12:03] <Upu> cheers
[12:04] <Upu> its a 2 hour round trip for me that
[12:04] <Jed_edu> im 2mins away
[12:04] <Upu> oh you were going after it
[12:04] <Upu> super cool
[12:04] Action: Upu sits back down
[12:05] <Upu> reciving it ?
[12:05] <Will> I am looking to do a lunch on friday so looking for a payload to track to track as a test. Upu is your call sign 2E0KPI? I cant see it on spacenear
[12:05] <Upu> no I'm M0UPU
[12:06] <Upu> sure I can still see it very faint on the waterfall
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[12:07] <Jed_edu> i have my yagi :)
[12:08] <Will> 434,500 ish?
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[12:12] <mikestir_M0MKS> 434.570
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[12:31] <G6SUQ_Graham> re: the MOD-1 balloon ... there is a NOTAM for a launch in that area sometime this week
[12:47] <Maxell> craag: the calculations do not lie: only a few newtons of horizontal force on a 60mm pipe with 170km/h of wind.
[12:49] <craag> plus the wind loading of the antenna?
[12:49] <craag> multiplied by the lever effect around the pivot?
[12:58] <Maxell> craag: no and no. It's pivot would be at the middle of the mast right?
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[13:21] <chrisstubbs> The pivot would be where its fixed
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[13:26] <KPIMAN> BAHUDE collected?
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[13:27] <Upu> Yes KPIMAN
[13:27] <Upu> I was going to speak to you to see who was going for it :)
[13:28] <Upu> but The launcher has gone to get it
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[13:46] <craag> Maxell: As Chris said, the pivot would be the edge on which it would start to tip over if pushed
[13:46] <craag> The good thing about a wide base is that this would be the edge downwind of the base
[13:47] <craag> However - the mast may also bend a bit downwind, moving more of the weight over, so you need plenty of margin!
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[13:54] <Jed_edu> i am 60 ft away from it and cant get to it still transmitting in a private garden 53.569 -1.466
[13:54] <SIbot> In real units: 60 ft = 18 m
[13:57] <craag> Homeowner not in?
[13:57] <Jed_edu> no
[13:57] <Upu> round the back ?
[13:58] <Jed_edu> locked
[13:58] <craag> Have you asked the neighbours when they might be back?
[13:58] <Upu> can you give me a string Jed_edu ?
[13:58] <SpeedEvil> Jed_edu: you do have a better fix than that?
[13:59] <Upu> garden may back on to three other houss
[13:59] <SpeedEvil> Because that's +-50km
[13:59] <SpeedEvil> 50m
[13:59] <Upu> yeah could do with it more accurate
[14:00] <Upu> there are four houses there with adjoining gardens
[14:01] <Upu> If you're looking at the bungalow
[14:01] <Upu> try the house round the corner
[14:01] <SpeedEvil> At +-50m, I make it as many as 20 houses might be in range
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[14:05] <Jed_edu> can anybody place it on a map
[14:05] <Upu> wb
[14:05] <Upu> give us a telemetry string pls
[14:05] <Upu> so we can get a more accurate position
[14:05] <Upu> thats +/-50m
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[14:06] <SpeedEvil> https://maps.google.co.uk/maps?q=%40+53.569+-1.466&oe=utf-8&client=firefox-a&channel=fflb&ie=UTF-8&ei=7vaBU_jbCsay0QXs84B4&ved=0CAgQ_AUoAQ
[14:06] <SpeedEvil> Protip.
[14:07] <SpeedEvil> Search for @nn.nnn nn.nnn
[14:08] <SpeedEvil> ^google
[14:09] <Jed_edu> 53.6945 -1.46621
[14:10] <Upu> paste a full telemetry string too pls
[14:10] <Upu> there is an error in that
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[14:11] <Upu> if you paste a full string Jed_edu I'll upload it
[14:12] <Upu> those coords just posted are away from where you previously posted
[14:13] <SpeedEvil> Quite a long way away
[14:13] <Upu> even if I assume its 53.56945
[14:17] <Upu> PM me your phone number if you want Jed_edu
[14:18] <Upu> or alternatively if you're stuggling record the rtty on your phone and mail it to me
[14:18] <Upu> it does work :)
[14:20] <mattbrejza> if only there was a way to decode rtty and map it on your phone ;)
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[14:20] <Upu> lol
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[14:22] <Upu> got it Jed 2 mins
[14:22] <Jed_edu> ok thx
[14:27] <Upu> ok Jed_edu
[14:27] <Upu> updated
[14:27] <Upu> you need to be on Hazelwood
[14:27] <Jed_edu> ok
[14:28] <Upu> if you were on Stretton road you were in the wrong place
[14:28] <Maxell> http://spacenear.us/tracker/?filter=B-53 airborne
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[14:28] <Upu> some what looks like public land
[14:28] <Upu> 10p says its in a tree
[14:29] <Upu> p.s B-52 is back
[14:29] <Maxell> SIbot: 10 p in real units plz
[14:29] <Maxell> ;)
[14:29] <Upu> that is REAL units :)
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[14:30] <Maxell> Upu: 52 isn't back!
[14:30] <Upu> ah APRS bug sorry
[14:30] <Upu> I saw it in log tail
[14:31] <Maxell> hehe
[14:31] <Jed_edu> trees are small thats exactly where i am thanks upu
[14:32] <Upu> send me a few more strings if you want and I'll upload so you get a 2 meter "jitter" of where it is
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[14:32] <Upu> but yes loos like its in that gardeb
[14:35] <DL7AD> B-53 on air
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[14:35] <tweetBot> @G8DHE: HAB Update: BAHUDE nearly recovered and B-53 aloft. Track using http://t.co/op0g3lPWkU #ukhas #hab #hamr
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[14:40] <Jed_edu> recovered :)
[14:40] <Geoff-G8DHE-M> Good to hear
[14:40] <craag> Nice one Jed_edu
[14:40] <craag> B-53 descending :/
[14:40] <Geoff-G8DHE-M> No conservtories damaged i hope ;-)
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[14:41] <SpeedEvil> Jed_edu: Woo
[14:41] <Upu> recovered ?
[14:42] <mfa298> 15:40 < Jed_edu> recovered :)
[14:42] <Upu> super :)
[14:42] <craag> Upu: musical v6 addresses?
[14:42] <Jed_edu> thanks guys
[14:42] <Upu> my ipv6 is broken
[14:42] <Upu> Can't connect in via it
[14:42] <Upu> can connect out
[14:42] <craag> ah :/
[14:42] <Upu> and it won't use its static one
[14:43] <mfa298> that looks a bit like privacy extensions timing out
[14:43] <Upu> IPv6 Address. . . . . . . . . . . : 2a00:14f0:e028::2
[14:43] <Upu> its the firewall
[14:43] <DL7AD> wich airport is the most reasonable to get to the conference? i heared for example it will take a lot of time to get to the airport where easy jet is based.
[14:43] <mfa298> you're connecting from a differnt v6 address (or set of)
[14:44] <Upu> which airport is that DL7AD ?
[14:44] <DL7AD> i dont know
[14:45] <mattbrejza> easy jet fly into gatwick?
[14:45] <DL7AD> *where easy jet flies
[14:45] <DL7AD> :D
[14:45] <Maxell> Upu: check http://ip6.nl/
[14:45] <mfa298> which aren't SLAAC addresses so that would suggest it's using privacy extensions (or dhcpv6 but that's less likely)
[14:45] <Upu> yeah its the firewall I know
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[14:45] <Upu> because it stopped working when I down graded the firmware to fix another bug
[14:45] <mattbrejza> either way, gatwick is one train away from london victoria (which is central london)
[14:45] <mattbrejza> then tube it to your hotel
[14:45] <Upu> I'll fix it at some point
[14:46] <db_g6gzh> Upu: 9 2a00:14f0:e000:7d::1 (2a00:14f0:e000:7d::1) 15.168 ms 15.984 ms 15.331 ms is as far as it gets from me
[14:46] <Upu> thats my firewall
[14:46] <mattbrejza> or luton for easyjet
[14:47] <Upu> B-53 down ?
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[14:47] <db_g6gzh> 522m
[14:48] <Upu> bouncing off the ground
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[14:48] <kpiman> 2 in one day coming our way Upu
[14:48] <Upu> I know
[14:48] <Upu> must be something in the air
[14:48] <db_g6gzh> I can still hear pips so hopefully going up again
[14:49] <Upu> did that wierd up down up thing these picos do occasionally
[14:50] <db_g6gzh> update imminent 8-)
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[15:23] <Laurenceb> any tex gurus here?
[15:23] <Laurenceb> ive got issues with figure placement?
[15:23] <Laurenceb> *-?
[15:27] <KT5TK> What figures y'all wanna place in Texas?
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[15:29] <Laurenceb> heh
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[15:30] <Laurenceb> i need \clearpage without a new page
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[15:32] <KT5TK> http://tex.stackexchange.com/questions/88657/clearpage-without-pagebreak
[15:32] <KT5TK> does that help?
[15:32] <Laurenceb> yeah tried that
[15:32] <Laurenceb> it gives my text then a 95% blank page
[15:32] <Laurenceb> then my figures
[15:32] <Laurenceb> i want my figures then the text after the figures on the past page of figures
[15:32] <Laurenceb> so:
[15:33] <Laurenceb> 1) text
[15:33] <Laurenceb> 2) figures
[15:33] <Laurenceb> 3) some figures then text
[15:33] <Laurenceb> ^ is the order of the pages
[15:33] <Laurenceb> i can't find a way to do this
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[15:33] <Lunar_Lander> hello
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[15:34] <Laurenceb> this should be really basic stuff
[15:34] <Laurenceb> but its all failing
[15:34] <DL7AD> hi Lunar_Lander
[15:35] <Lunar_Lander> hi
[15:36] <Lunar_Lander> DL7AD, heard your flight went OK
[15:36] <Lunar_Lander> happy to hear that
[15:39] <DL7AD> Lunar_Lander: yes it did. the main parts ;)
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[15:49] <Lunar_Lander> yea
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[15:54] <G7UXW-Kevin> oh oh oh I hear b-53
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[16:06] <G7UXW-Kevin> what mode is B-53 transmitting in ???
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[16:06] <henryplumb> Hi all. What freq is B-53?
[16:07] <LeoBodnar> Contestia 8/250 Kevin
[16:07] <LeoBodnar> USb
[16:07] <G7UXW-Kevin> 4345.550108 here
[16:08] <G7UXW-Kevin> dl fligi has is at domix 16 cant change
[16:08] <henryplumb> 434.550?
[16:08] <G7UXW-Kevin> 500
[16:08] <henryplumb> kk, cheers
[16:09] <mikestir_M0MKS> G7UXW-Kevin: press the rxid button at the top and it should auto-configure
[16:09] <SA6BSS> dl fligi has is at domix 16 cant change go to "op mode" and then contesita ,
[16:09] <SA6BSS> thats allso a nice idea :)
[16:09] <mikestir_M0MKS> if you enable rxid it will auto-tune for you as well
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[16:10] <G7UXW-Kevin> yes im on the screen
[16:10] <G7UXW-Kevin> got my first good decode
[16:12] <iain_g4sgx> Can anyone tell me if B-53 is drifting slightly? Thought the b's were all tcxo'd. ? If not its my rig warming up..
[16:13] <SA6BSS> I would say its been pretty solid in freq.
[16:14] <iain_g4sgx> OK tnx, will rememeber to leave it on a while to warm up. Its an FT857D
[16:14] <Upu> rock solid iain_g4sgx
[16:14] Nick change: Upu -> Upu_M0UPU
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[16:28] <DutchMillbt> Hi All B53 at 434.500 =
[16:29] <DutchMillbt> 434.500 Mhz ?
[16:29] <craag> yep
[16:29] <DutchMillbt> oke thankz craag
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[16:38] <henryplumb> Managed to decode 3 strings from B-53 with the handheld :L
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[17:23] <PE2G1> Anyone who has the precise freq of B-53? Am trying to find traces on the waterfall
[17:24] <SA6BSS> 434,500
[17:24] <SA6BSS> so
[17:24] <SA6BSS> rry
[17:24] <SA6BSS> dont have axact freq
[17:24] <PE2G1> OK
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[17:25] <Maxell> PE2G1: 434.500 MHz check for the blips and enable rxid you know the drill
[17:26] <PE2G1> Maxell, Yeah, but no blips here
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[17:30] <SA6BSS> the web sdr Im using is 434.499,5 @ 1150
[17:31] <PE2G1> Tnx
[17:31] <craag> I wouldn't trust the websdr too much, it's still got the original XO in the rtlsdr
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[17:31] <SA6BSS> so true
[17:32] <craag> We've gone our best to stabilise it in a metal box and then calibrate it, but it still waves +- 500hz or so
[17:32] <craag> depending on shed temperature :)
[17:33] <SA6BSS> is the Southampton Universityweb sdr yout baby :)??
[17:33] <craag> Yeah I'm the southampton uni guy responsible for it
[17:34] <SA6BSS> thats nice, use it all the time !
[17:34] <craag> That's great to hear!
[17:36] <PE2G1> Maxell: do you receive anything?
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[17:39] <G8FJG> b53 freq?
[17:39] <craag> 434.500
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[18:01] <jededu> Thanks for tracking today
[18:02] Nick change: RaptorJesus_ -> RaptorJesus
[18:05] <jededu> Is there a way of getting accurate predictions for these 100g pawan balloons
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[18:09] <mfa298> jededu: if you can put in accurate ascent rate, descent rate and burst altitude for the balloon the prediction should be accurate
[18:12] <DL1SGP_> :)
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[18:15] <G8FJG> what decodes should I get for b53 I can see it but only 10-15 db over noise
[18:21] <PE2G1> G8FJG: Did you choose Op Mode: Contestia 8/250?
[18:24] <G8FJG> doh I think it selected domex16 for me...I will be more careful in future...only a few db over noise now ...thanks
[18:25] <PE2G1> Contestia will decode at low signal levels
[18:25] <Maxell> PE2G1: RSID: <<2014-05-25T17:28Z Contestia @ 1496>>
[18:25] <Maxell> $$B-53,1U9,172808,14052E,..................
[18:25] <Maxell> hehe thats all
[18:26] <G8FJG> so close $$B-53,227,4.3142,0.0761,9854,8,-4,4.36,0.62*9849
[18:27] <PE2G1> Maxell: at least that's something. I'm too far out of range. Hoping for some ducting...
[18:27] <Maxell> PE2G1: hehehe
[18:27] <Maxell> good luck! :)
[18:28] <PE2G1> Tnx, stranger things have happened
[18:28] <jededu> mfa298 I did exactly that but it was 50 miles out :)
[18:28] <pb1dft> Maxell:
[18:29] <pb1dft> still 434.500?
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[18:30] <G8FJG> one green! $$B-53,231,182802,140525,54.3523,0.0971,9841,5,-5,4.36,0.68*2D70
[18:30] <PE2G1> G8FJG: Congrats :)
[18:31] <pb1dft> can't seem to find it
[18:32] <jededu> Just the prediction again puts it in exactly the same landing spot within a mile but it ended up in barnsley good fun though
[18:32] <craag> jededu: Did the predictor get the burst altitude right?
[18:33] <jededu> the burst calc did
[18:33] <jededu> there is only a 200 in the predictor
[18:34] <craag> Sorry?
[18:34] <craag> So you put the burst altitude from the calc into the predictor?
[18:34] <DL7AD_> is there any possibility to export the ssdv images?
[18:35] Nick change: DL7AD_ -> DL7AD
[18:35] <mattbrejza> DL7AD: just go to the ssdv page and go file->save as
[18:35] <DL7AD> they have been already remove
[18:35] <DL7AD> d
[18:36] <mattbrejza> oh right
[18:36] <jededu> There isnt a pawan 100 in the predictor settings so I used ascent rate burst alt and descent from the calc
[18:36] <DL7AD> jededu: yes
[18:36] <craag> jededu: Ah ok, yeah that's the way I do it.
[18:36] <DL7AD> jededu: habhub.org/calc/
[18:37] <craag> Could you do a side-by-side picture of the predicted path and real path?
[18:39] <jededu> ascent 3.45 burst 15000 descent 4.5 neck lift 177g payload 85g
[18:39] <jededu> how do i find predicted from earlier
[18:42] <craag> Ah you can't unless you saved it
[18:42] <craag> but I make your ascent rate today closer to 2.15m/s
[18:42] <craag> Which would explain why it went further
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[18:43] <craag> Also it burst at 18km, not 15km
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[18:45] <craag> so the burst calc would have told you that the ascent would take 72 minutes
[18:45] <jededu> cragg http://i.imgur.com/3bhrhbJ.png
[18:45] <craag> It was actually closer to 2.5 hours
[18:46] <jededu> I know lol
[18:46] <craag> Yeah, so it looks to me like you didn't put enough helium in
[18:46] <craag> so it went up slower
[18:46] <craag> and burst higher
[18:46] <craag> (less helium, so could expand more)
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[18:48] <craag> The predictor can only be as accurate as your fill
[18:48] <jededu> Im not complaining the neck loft was as close to 177g as i could get I checked many times no wind inside the van I even weighed the filler again just now it make sure inc the tube
[18:49] <jededu> Ill just have to do it again i have several balloons :)
[18:49] <craag> Yeah, the only other possibility really is that the balloon was heavier (and larger) than 100g.
[18:49] <craag> Which is unlikely
[18:49] <jededu> The only difference is I would have gone up the M1
[18:50] <craag> If you see an ascent rate after launch that doesn't match what you calculated, re-run the calc for that ascent rate, then put the new variables into the predictor
[18:51] <craag> You can't correct it at that point, but gives you a better idea of where you're aiming to go :)
[18:51] <jededu> But ithe tracking equipment all worked as expected it was a test for next week
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[18:52] <Upu_M0UPU> hey just for the lulz my igate setup using a Baofeng UV5R is currently igating M0XER-3
[18:52] <Upu_M0UPU> 2014-05-25 18:51:08.823 M0UPU-1 R M0XER-3>APRS53,WIDE2-1:!/2s,"NRoZO @E7*/A=032168|#dPn'q>'!(|
[18:52] <craag> jededu: Good to hear! :) When are you launching next week?
[18:52] <jededu> We did have greens most of the way
[18:52] <Upu_M0UPU> tracker do ok for you jededu ?
[18:52] <craag> Upu_M0UPU: Awesome ;)
[18:52] <Upu_M0UPU> legislation be damned
[18:53] <Upu_M0UPU> physics ignores laws
[18:53] <jededu> Wednesday about 14:00 RasPi and 1600
[18:53] <Upu_M0UPU> now
[18:54] <Upu_M0UPU> in theory if I have Leo's permission can I digi his transmissions ?
[18:54] <G7UXW-Kevin> I'm predicting that B-53 will fly up over Sweeden into Norway then into Northen Russia am I correct ???
[18:54] <jededu> Fantastic Upu greens all the way
[18:54] <G7UXW-Kevin> unless it has'nt gone pop
[18:55] <Upu_M0UPU> super jededu glad it worked
[18:55] <craag> Upu_M0UPU: As long as you take responsibilty for the content of the messages, you can digi what you want!
[18:55] <Upu_M0UPU> I don't think they need retransmitting really
[18:55] <craag> no they don't
[18:55] <Upu_M0UPU> but I'm getting every one at the moment
[18:55] <craag> :)
[18:56] <craag> Impressive
[18:56] <Upu_M0UPU> not bad for a £29 radio
[18:57] <Upu_M0UPU> I took the amp off it
[18:57] <Upu_M0UPU> after I accidentally pressed TX and blew it up
[18:57] <mikestir_M0MKS> last packet was gated by 2E0BCI in liverpool. I haven't gated any yet I don't think, but my igate isn't very good
[18:57] <craag> hehe, been there, done that!
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[18:59] <craag> keep meaning to get a replacement LNA device off you..
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[19:01] Nick change: Geoff-G8DHE_ -> Geoff-G8DHE-M
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[19:03] <mikestir_M0MKS> hmmm. My log suggests I did receive M0XER-3 but it doesn't show up under "stations heard directly" on aprs.fi. Anyone know why?
[19:03] <Dan-K2VOL> Hey all
[19:03] <Upu_M0UPU> Dan-K2VOL
[19:04] <Upu_M0UPU> long time no speak
[19:04] <Upu_M0UPU> how are you ?
[19:04] <Dan-K2VOL> I'm good, finally a few minutes of free time this weekend :-) spending them helping some local amateurs predict their first flight
[19:04] <Dan-K2VOL> :-P
[19:05] <Upu_M0UPU> you do keep yourself busy :)
[19:05] <Upu_M0UPU> coming to London on 16th August ?
[19:07] <Lunar_Lander> hello Dan-K2VOL
[19:07] <Dan-K2VOL> Hmm, I may! I am trying to go to the COSPAR conference the week before over there
[19:07] <Dan-K2VOL> hey Lunar :-)
[19:07] <Upu_M0UPU> That would be awesome
[19:07] <Dan-K2VOL> definitely would be great to see you guys again
[19:07] <DL1SGP_> Hello Lunar_Lander
[19:07] <LeoBodnar> i have noticed that. it looks like it ignores airborne stations [20:03] <mikestir_M0MKS> hmmm. My log suggests I did receive M0XER-3 but it doesn't show up under "stations heard directly" on aprs.fi.
[19:07] Nick change: DL1SGP_ -> DL1SGP
[19:07] <Upu_M0UPU> did you get my mail about the Rockblock Dan-K2VOL ?
[19:08] <mikestir_M0MKS> LeoBodnar: that's a bit passive-aggressive of them :)
[19:08] <Lunar_Lander> hi DL1SGP
[19:08] <LeoBodnar> lol yeah or at least irrational
[19:09] <Dan-K2VOL> oh not sure anthony, I will check through the inbox now :-)
[19:09] <LeoBodnar> does it show mobile stations liek cars and trucks?
[19:09] <Upu_M0UPU> lol
[19:09] <Upu_M0UPU> tl'dr we still have your Rockblock can we play with it/potentially loose it :)
[19:10] <Dan-K2VOL> Oh yes, please do anything you like with the rockblock for ballooning purposes :-)
[19:10] <Upu_M0UPU> I suspected you'd say that :)
[19:10] <Upu_M0UPU> thanks
[19:11] <LeoBodnar> we've already played with it a bit
[19:11] <Dan-K2VOL> no problem :-)
[19:11] <Upu_M0UPU> Have you seen Leo's flights Dan ?
[19:11] <Dan-K2VOL> the UK to japan sounds amazing! just read the email
[19:11] <Upu_M0UPU> home made balloons > 1 week duration
[19:11] <Dan-K2VOL> hehe I want details
[19:11] Action: Upu_M0UPU points at LeoBodnar
[19:11] <Upu_M0UPU> come to London I'll get you and him a room
[19:12] <Dan-K2VOL> haha it's a deal
[19:12] <LeoBodnar> aluminised PE/PTE film with heat sealing
[19:12] <Dan-K2VOL> ahhh excellent, a custom envelope
[19:12] <Dan-K2VOL> got pics?
[19:13] <LeoBodnar> http://leobodnar.com/balloons/B-47/index.html
[19:13] <LeoBodnar> http://leobodnar.com/balloons/B-49/index.html
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[19:13] <LeoBodnar> I am manning up to full 4-6 gore launch
[19:14] <LeoBodnar> just gaining confidence in seams atm
[19:14] <Dan-K2VOL> fantastic
[19:14] <Dan-K2VOL> is the film PE on both sides?
[19:15] <LeoBodnar> no it has some nylon as well
[19:15] <LeoBodnar> it is sealable only on one side
[19:15] <Dan-K2VOL> ah that's a pain
[19:15] <LeoBodnar> indeed
[19:15] <Dan-K2VOL> have you measured burst pressures?
[19:16] <LeoBodnar> it's reaching nylon's ultimate stress
[19:16] <DL7AD> 80Pa
[19:16] <LeoBodnar> *strength
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[19:16] <SpeedEvil> LeoBodnar: really? Impressive
[19:17] <Dan-K2VOL> hmm I'd have thought they would be more like 500 to 1000Pa
[19:18] <LeoBodnar> pressure is geometry/size dependent so i'd rather reduce it to stress than pressure
[19:18] <SpeedEvil> Dan-K2VOL: Nylons ultimate stress will depend on geometry
[19:18] <LeoBodnar> it's about 5kPa for a 1m dia balloon
[19:18] <SpeedEvil> Hoop stress of a sphere is minimum.
[19:19] <Upu_M0UPU> are you coming to the conference this year SpeedEvil ?
[19:19] <Dan-K2VOL> differential pressure is what is the interesting bit when it's flying though- to see if you can survive the night
[19:19] <LeoBodnar> well it is also dependent on direction
[19:19] <SpeedEvil> Upu_M0UPU: No.
[19:19] <Upu_M0UPU> shame you've been here longer than I have
[19:19] <SpeedEvil> Upu_M0UPU: Transport is a problem.
[19:19] <SpeedEvil> Upu_M0UPU: As is not being able to lie down if I need to.
[19:19] <mattbrejza> Upu_M0UPU: put the conference in the irc title?
[19:20] <Upu_M0UPU> good idea mattbrejza
[19:20] <Upu_M0UPU> ok SpeedEvil
[19:20] <LeoBodnar> so far solar gain is the highest killer
[19:20] <Upu_M0UPU> let us know if its something we can work around
[19:20] #highaltitude: mode change '+o Upu_M0UPU' by ChanServ!ChanServ@services.
[19:21] <Lunar_Lander> yay Upu is Op
[19:21] <mattbrejza> you conferencing Lunar_Lander ?
[19:21] <Lunar_Lander> yea good question
[19:21] <Lunar_Lander> looked at how to get there earlier
[19:21] Topic changed on #highaltitude by Upu_M0UPU!Upu@2a00:14f0:e028:0:951f:ef06:41cf:ac27: Welcome to #highaltitude - UKHAS 2014 Conference Tickets on Sale now http://ukhas.org.uk/general:ukhasconference2014
[19:22] #highaltitude: mode change '-o Upu_M0UPU' by ChanServ!ChanServ@services.
[19:26] <SpeedEvil> Upu_M0UPU: Not really alas.
[19:26] <SpeedEvil> Upu_M0UPU: thanks.
[19:26] <Upu_M0UPU> no problems
[19:26] <Upu_M0UPU> we'll stream
[19:27] <Upu_M0UPU> reminds me need to speak to Noel
[19:27] <Upu_M0UPU> you still involved craag ?
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[19:53] <KT5TK> http://aprs.fi/#!mt=roadmap&z=7&call=a%2FKT5TK-4&timerange=172800&tail=172800
[19:57] <Upu_M0UPU> should say Thomas I can import that
[19:57] <KT5TK> Feel free to do so.
[19:58] <KT5TK> Hope for more updates when it gets closer to Florida.
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[20:00] <SpeedEvil> http://www.ebay.co.uk/itm/cast-iron-surface-plate-/201091125302?pt=LH_DefaultDomain_3&hash=item2ed1f71036 - anyone in wales
[20:01] <Upu_M0UPU> basis for a US HAB ?
[20:01] <Upu_M0UPU> j/king sorry America
[20:01] <craag> Hey Upu_M0UPU
[20:01] <Upu_M0UPU> hey craag
[20:02] <craag> I talked to Noel earlier this week, he reckons it won't be a problem :)
[20:03] <Upu_M0UPU> super thx
[20:03] <mattbrejza> 4k this year? :P
[20:03] <mattbrejza> 3D?
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[20:04] <Upu_M0UPU> lol
[20:05] <SpeedEvil> 3d? Boring.
[20:05] <SpeedEvil> https://www.indiegogo.com/projects/facerig
[20:06] <mattbrejza> we have a holigraphic display in the office if batc supports that yet
[20:10] <Geoff-G8DHE> h B-53 is descending
[20:11] <Upu_M0UPU> that it is
[20:12] <rob_m0dts_> did that last time it passed my way....hmmm!
[20:13] <Upu_M0UPU> you point that dish at it and transmitting Rob ? :)
[20:14] <rob_m0dts_> cooked it
[20:14] <Upu_M0UPU> :)
[20:14] <Upu_M0UPU> give it a zap , see if you can heat it up and make it climb again
[20:14] <rob_m0dts_> ha
[20:14] <Upu_M0UPU> you're going to be last station I suspect
[20:15] <rob_m0dts_> probably, g4fvp may appear but he's not far from me.
[20:16] <rob_m0dts_> there is some sea ductiing about today so it may hang in like last time below my horizon
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[20:42] <Upu_M0UPU> jededu can I clear Bahdue from the map ?
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[20:47] <SpeedEvil> http://www.viralforest.com/happens-combine-controlled-wildfire-burn-dust-devil/ - sort-of-on-topic
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[20:58] <jededu> Upu yes go ahead
[20:58] <Upu_M0UPU> ta
[21:01] <jededu> I had the chase car app active all day, it appeared on the map yesterday when I tested but not today I had a 3g signal any ideas
[21:01] <fsphil> ah another B
[21:01] <jededu> It was on android
[21:01] <Upu_M0UPU> not sure it doesn't work that well tbh
[21:01] <jededu> Ok
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[21:12] <DutchMillbt> mmm almost a green : $$B-53,3-',2110;,147^N5,5MM7899,0.5974,3796,8,-1044 23,0.06*034*
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[21:15] <rob_m0dts_> DutchMillbt: just now? definitely sea duct then..
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[21:17] <DutchMillbt> yep far out of the blue circle...
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[21:17] <rob_m0dts_> keep listening..:-)
[21:19] <DutchMillbt> well i go the sleep in 10 min ;-) but interesting to see
[21:20] <rob_m0dts_> north sea duct is ~300m at ~1am this morning
[21:20] <rob_m0dts_> http://weather.uwyo.edu/cgi-bin/sounding?region=europe&TYPE=GIF%3ASKEWT&YEAR=2014&MONTH=05&FROM=2500&TO=2512&STNM=01400
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[21:26] <DutchMillbt> Still bits and pieces come in...but no greens, no record today maybe next time. SeeY Rob
[21:26] <fsphil> good range
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[21:46] <rob_m0dts_> B-53 gone very weak here now, might re-appear! bbl
[21:51] <fsphil> yea they don't always stay down
[21:55] <DL7AD_> :( B-53 already crashed
[21:56] Nick change: DL7AD_ -> DL7AD
[21:56] <Upu_M0UPU> thats some pretty impressive rx rob_m0dts_
[22:02] <DL7AD> {Day changed to Monday, May 26, 2014}
[22:03] <KF7FER> Hey guys! I really haven't been here much the past few months but I've got a new board design I'm working on that I wanted to post here and maybe get a bit of feedback...
[22:03] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/leoTracker_RevC_Back.JPG
[22:03] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/leoTracker_RevC_Front.JPG
[22:03] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/leoTracker_RevE_BRD.png
[22:03] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/leoTracker_RevE_SCH.png
[22:04] <KF7FER> and for those who like the source...
[22:04] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/LeoTrackerE.brd
[22:04] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/LeoTrackerE.sch
[22:04] <KF7FER> FWIW... this is a 32u4 based integrated APRS tracker (w/ HX1 and MAX-6/7)
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[22:05] <KF7FER> and a microSD slot on the bottom. Plus this runs a modified version of Trackuino 1.5
[22:05] <KT5TK> Nice work
[22:05] <KF7FER> thanks!
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[22:05] <Lunar_Lander> awesome!
[22:06] <Lunar_Lander> even smaller than Stormdrifter II v2.0
[22:06] <KF7FER> not bad for a guy who couldn't solder two wires together 4 years ago eh? :-)
[22:06] <KT5TK> What voltage regulator do you use?
[22:07] <KF7FER> I have a love/hate relationship with the 32u4 but I really like having a microSD
[22:07] <KF7FER> well... for 5v? I have two plug-in modules. One an LDO and one a TPS61202
[22:07] <KF7FER> for 3.3v I use...uh... I'll have to check
[22:07] <KF7FER> hence the machined headers - that's for power
[22:08] <KF7FER> I'll post those files as well in a bit
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[22:08] <KF7FER> note the files match the NEXT version, not the Rev C I just built
[22:09] <Lunar_Lander> how to solder TPS61202?
[22:10] <KF7FER> I've got a hot plate and plenty of tears to go with that ;-)
[22:11] <KF7FER> I'm hoping it's easier to build on this version. My last tracker had it on board and it about killed me production-wise.
[22:11] <KF7FER> I think I have a blister on my thumb from testing boards with a TPS61202 on them
[22:11] <KT5TK> I don't see the TPS61202 on the photos and in the schematic?
[22:12] <KF7FER> sorry... that's on the plug in board that fits between JP1 and JP2
[22:12] <KT5TK> Ah, OK
[22:12] <KT5TK> So you have also a solar plug?
[22:13] <KF7FER> ideally I wanted to do solar and LiPoly on the plug-in board
[22:13] <KF7FER> I'm not sure I gave enough space for it though
[22:13] <KF7FER> I may have to expand things a bit
[22:13] <KF7FER> not sure
[22:13] <KF7FER> and not solar and LiPoly on the same board; that's two boards
[22:14] <KF7FER> since I've had people interested in terrestrial use (parades and SAR) so LiPoly makes sense (w/ a boost converter)
[22:14] <KF7FER> solar would be cool but I haven't looked at that yet
[22:15] <KF7FER> I assume you'd need a boost converter with solar for 5v?
[22:18] <KF7FER> so just to be complete, here are the links for the boost converter "daughter board"
[22:18] <KT5TK> Well, if you have enough solar modules in series, you don't. It's a question of weight.
[22:18] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/leoPower_BRD.png
[22:18] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/leoPower_SCH.png
[22:19] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/LeoPowerBoostA.brd
[22:19] <KF7FER> https://dl.dropboxusercontent.com/u/8240668/Review/LeoPowerBoostA.sch
[22:19] <Lunar_Lander> oh ok
[22:20] <KF7FER> if anybody cares I could post the LDO daughterboard as well, but that's pretty low-tech
[22:20] <KF7FER> easy to build and cheap but needs 6v+
[22:21] <KT5TK> What transistor do you use to switch the uBlox on?
[22:21] <KT5TK> (Q1)
[22:22] <KF7FER> fantastic question! And one that scares me. Let me look...
[22:22] Action: Lunar_Lander buzzes in
[22:22] <Lunar_Lander> BC549
[22:22] <Lunar_Lander> xD
[22:23] <KT5TK> So Vcc is at 5V? or 3.3V?
[22:23] <KF7FER> MMSS8550-H-TPMSCT-ND
[22:23] <KF7FER> 3.3v... 5v is just VIN and to the HX1
[22:23] <KF7FER> VIN if plugged into USB ;-)(
[22:24] <KF7FER> oops ;-) and not really 5v with that diode
[22:24] <KF7FER> it's a 40v PNP. Not sure if I could find a BC549 in SMT
[22:24] <KT5TK> You'll need to end up with 3.5 V max at the GPS, right?
[22:24] <KF7FER> right
[22:25] <Lunar_Lander> ah I was just joking with that model number :P
[22:25] <KF7FER> seems to work even if I err'd
[22:25] <KF7FER> but I'm not above suggestions on how I should do things :-)
[22:26] <mikestir_M0MKS> KF7FER: it's called the BC849
[22:26] <KF7FER> using a transistor is one of the new things I did on this board
[22:27] <KT5TK> We're getting now steady updates from K5TK-4 through Florida igates: http://aprs.fi/#!mt=roadmap&z=7&call=a%2FKT5TK-4&timerange=172800&tail=172800
[22:29] <KF7FER> mikestir_M0MKS: Cool but I'm pretty sure I want a PNP so this won't help... or am I that messed up?
[22:29] <mikestir_M0MKS> I don't know I didn't look at the circuit :)
[22:29] <mikestir_M0MKS> the BC559 in SMT Is BC859
[22:29] <mikestir_M0MKS> if you need a PNP
[22:29] <KF7FER> makes me feel better ;-)
[22:30] <KT5TK> Yes you want a PNP for that purpose.
[22:30] <KF7FER> I did try but that part of the board scared me the most (since I didn't power it that way before)
[22:31] <KF7FER> well that and the whole switch the 328 for a 32u4 thing ;-)
[22:31] <mikestir_M0MKS> or a p-channel mosfet
[22:31] <Lunar_Lander> good night!
[22:31] <KT5TK> But with a bipolar PNP you still have some voltage drop. So this won't work for low power versions
[22:32] <KF7FER> how much drop?
[22:32] <mikestir_M0MKS> yes, you also have to sink some current out of the base, so a mosfet will be lower power (but since the load is low power it won't be that big a deal)
[22:32] <KT5TK> I think about 0.3V drop
[22:32] <KF7FER> still I think the MAX-6/7 will work with 3v easy right? maybe I should double-check the specs
[22:33] <KT5TK> No problem, but if you have a 1.8V bus, 0.3V is significant
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[22:34] <KF7FER> I don't think I'm using the 1.8v part... or are you talking about the 7?
[22:35] <KF7FER> the current boards use the MAX-6Q
[22:35] <KF7FER> that's not 1.8v is it?
[22:35] <KT5TK> There is also a Max 6 Version for low voltage, but yes, MAX7 is current
[22:35] <KT5TK> Q is the 3.3V version
[22:36] <KF7FER> so I guess I'd need level conversion to use the 1.8v part?
[22:36] <KT5TK> Or just have the whole system at 1.8V
[22:37] <KF7FER> I agree but I'd have to ditch the HX1 to do that right?
[22:37] <KT5TK> the ATmega328 p can do that, not sure aboout the u
[22:38] <KT5TK> Yes, you'll ditch the HX1 sooner or later :)
[22:38] <KF7FER> well I'm hoping this is the last board that uses the HX1.
[22:38] <Upu_M0UPU> 6G is the 1.8V version
[22:38] <Upu_M0UPU> replaced by the 7C
[22:38] <Upu_M0UPU> and yes the 5V requirement for the HX1 is a pita
[22:38] <KF7FER> it pains me!
[22:39] <Upu_M0UPU> you can do APRS via the SI4464 @ 100mW which should be fine
[22:39] <Upu_M0UPU> or use 4464 and make a PA
[22:39] <KF7FER> so where do I buy any of those SI chips?
[22:39] <Upu_M0UPU> mouser
[22:39] <Upu_M0UPU> digikey
[22:39] <Upu_M0UPU> try octopart.com
[22:39] <Upu_M0UPU> should tell you
[22:39] <KF7FER> really? digikey has them? I could have sworn I looked
[22:39] <KF7FER> My google-fu is probably failing me
[22:40] <KT5TK> yes, they have them
[22:40] <mikestir_M0MKS> mouser definitely has them
[22:40] <KF7FER> ok I'll look again
[22:40] <Upu_M0UPU> http://www.digikey.com/product-detail/en/SI4464-B1B-FM/336-2472-5-ND/3681120?WT.z_cid=ref_octopart_dkc_buynow
[22:40] <KT5TK> Si4463 works just as fine if they're out of Si4464
[22:40] <KF7FER> VFQFN? Are you trying to kill me?
[22:41] <Upu_M0UPU> stencil
[22:41] <Upu_M0UPU> thats what size they are :)
[22:41] <Upu_M0UPU> anyway night all!
[22:41] <KF7FER> still... I'm convinced my ex-wife sent you
[22:41] <KF7FER> ;-)
[22:41] <KF7FER> nite
[22:41] <KT5TK> If you can solder the TPS reg you can also do the Si
[22:42] <KF7FER> I'll have to give it a go then. I did make the TPS work after all
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[22:43] <mikestir_M0MKS> leave a big via to solder the pad underneath if doing by hand. You need a sharp soldering iron tip, but it works fine
[22:43] <malclocke> I've just ordered some Si4464 from element14
[22:44] <mikestir_M0MKS> oh. since when did farnell start stocking them?
[22:44] <mikestir_M0MKS> that's good to know
[22:45] <malclocke> my first project, I have a friend with some smd experience who is hopefully going to help me :/
[22:46] <rob_m0dts_> Upu_M0UPU: the 30m odd duct must still be there!
[22:46] <rob_m0dts_> *300m
[22:46] <rob_m0dts_> gn all
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[22:51] <KF7FER> BTW I don't mean to dis the HX1... I was surprised on my test board I had the 5v line running at 4.15v and I was able to decode a packet running Trackuino
[22:52] <KF7FER> (4.15v=crappy selection of diode on the 5v line)
[22:52] <KF7FER> from USB power only
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[22:55] <KF7FER> malclocke: It's not very hard to do that size of parts... I used http://www.instructables.com/id/Closing-the-Loop-on-Surface-Mount-Soldering/ but maybe I was lucky because the author gives classes locally
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[22:58] <malclocke> KF7FER, the encouragement is appreciated ... encouragement alone may not be enough though :)
[22:59] <KF7FER> well if it helps a few years ago I couldn't solder two wires together. I was afraid to buy a "kit" Arduino. Now... well I hope my work says something about what I've learned
[23:00] <mikestir_M0MKS> key things you need for the tiny smt parts are a decent temperature controlled iron, a flux pen and desoldering wick
[23:00] <KF7FER> yes plenty of flux never hurts
[23:00] <KF7FER> you can easily do 0805 with a good iron (as Mike says) and a reasonable sized tip
[23:01] <KF7FER> the real problem is chips like the TPS61202... is much easier to do with a stencil and some paste
[23:02] <KF7FER> once you do a stencil board like that you'll never go back. I've got a couple of boards I don't bother with a stencil for. But sometimes you just need it
[23:02] <mikestir_M0MKS> http://www.mike-stirling.com/files/DSC_2396.JPG <-- that's done with an iron
[23:02] <KF7FER> doing a PID controlled hot plate can be done for under $50US and can be killer
[23:03] <KF7FER> mikestir_M0MKS: Nice work!
[23:04] <KF7FER> looks like the same crystal I just started using eh?
[23:04] <KF7FER> 5x3?
[23:05] <mikestir_M0MKS> yeah it's a bit big!
[23:05] <KF7FER> very nice work at any rate
[23:05] <mikestir_M0MKS> thanks
[23:06] <mikestir_M0MKS> that's the smallest I've done - I would usually use 0603 and avoid QFN, but apart from the extreme care required in placement I didn't actually find it much harder
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[23:07] <KF7FER> amazing... the board I posted uses mostly 0805 but I did use 4x 0603 LEDs and 2x 0402 0.1uF caps and the same inductor the Leonardo uses (also 402)
[23:07] <KF7FER> I've done some 603 LEDs but try not too ;-)
[23:08] <KF7FER> 0402 wasn't bad at all really
[23:08] <KF7FER> I expected worse
[23:08] <mikestir_M0MKS> I actually think 0402 is easier to hand solder than 0603 - they don't seem to tombstone so readily
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[23:09] <KF7FER> sir: you ever come to the PNW and I'll buy you a beer. I hate 603 and smaller. I did solder 603 LEDs by hand, but would rather eat worms
[23:10] <KF7FER> PNW=Pacific North West. Home of the killer beer :-)
[23:11] <KF7FER> but I did just get laid off from my job so please don't come to the PNW ;-)
[23:12] <mikestir_M0MKS> sorry to hear that. If I'm ever over that way I can always buy the beer! Anyway, must go to bed
[23:12] <mikestir_M0MKS> gn all
[23:12] <KF7FER> nite
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[23:13] <KF7FER> so 0402 blows except for the savings in board space ;-)
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[23:25] <KF7FER> so malclocke: I don't suppose you're in the US on the left side? There is a great bunch of guys you can meet with that would help you
[23:25] <malclocke> KF7FER, NZ
[23:26] <malclocke> pretty much on my own ;)
[23:26] <malclocke> there is a team of three of us currently planning some launches later in the year
[23:26] <KF7FER> ugh. well if it helps, if I can do it I'm sure you can too. Sorry I can't offer more than that
[23:27] <KF7FER> I don't suppose you know VK3YT?
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[23:28] <KF7FER> not that ugh=living in NZ. I think I might enjoy it there :-)
[23:28] <KF7FER> just you're not anyplace close
[23:29] <malclocke> it's pretty nice, although being long and thin and surrounded by ocean is not ideal for HAB
[23:29] <KF7FER> well I'd expect that living in paradise may not be suitable for HAB flights ;-) (paradise depends on your definition of course)
[23:30] <malclocke> we should get some great photos of the southern alps though if all goes well
[23:31] <KF7FER> so god does love you eh? ;-)
[23:35] <KF7FER> just dreaming of being near the alps
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[00:00] --- Mon May 26 2014