highaltitude.log.20140729

[00:02] <KT5TK> N2NXZ: Nice payload!
[00:02] <KT5TK> Do you transmit WSPR?
[00:03] <kc2pit> I've become totally spoiled by soldering under a stereo microscope.
[00:03] <N2NXZ> No,have not messed with WSPR,a bunch of guys I know are involved with those new QRSS kits
[00:05] <N2NXZ> I just run a 10m beacon at the campsite,it runs on soalr.
[00:05] <N2NXZ> solar
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[00:06] <N2NXZ> This AD9850 will prbably be too weak without a PA stage,but too much battery as it is.
[00:06] <KT5TK> So what do you generate with the DDS?
[00:06] <arko> KT5TK: nice flight so far :)
[00:06] <N2NXZ> RTY beacon
[00:06] <N2NXZ> RTTY
[00:06] <arko> was hoping it could come by my place, but i guess not http://ready.arl.noaa.gov/hypubout/117371_trj001.gif
[00:07] <KT5TK> AH OK, I tried PSK on 20m and 40 m on a balloon
[00:07] <KT5TK> Worked great
[00:07] <N2NXZ> I wanted psk31
[00:08] <N2NXZ> It should be fun anyway it goes.All in fun,as long as it leaves the launch pad...
[00:08] <KT5TK> Hi Arko, So far BLT40.1 didn't follow the prediction at all
[00:09] <arko> looks like it may have hit a few storms
[00:09] <KT5TK> Very slow winds (actually none)
[00:09] <arko> got rained on maybe?
[00:09] <arko> yeah
[00:09] <arko> crazy
[00:09] <arko> going to ukhas conf this year?
[00:09] <KT5TK> No, I have to prepare to move back to Germany.
[00:10] <KT5TK> But maybe next year again
[00:10] <arko> aww
[00:10] <arko> cool
[00:10] <arko> i'll be in germany for like 3 days in 3 weeks
[00:10] <arko> excited :)
[00:11] <KT5TK> I'll not be there that soon.
[00:11] <arko> hehe
[00:11] <arko> cool cool
[00:11] <KT5TK> But if you are in Berlin, contact DL7AD
[00:11] <arko> i wont be in Berlin unfortunatly, just Stuttgart :/
[00:11] <KT5TK> He'll come to the conference also
[00:11] <arko> yeah!
[00:12] <arko> but anyway, nice flight
[00:12] <KT5TK> Let's see how long the batteries last
[00:12] <KT5TK> 2 x AAA
[00:12] <arko> whats onboard?
[00:12] <arko> oh
[00:12] <arko> depends how power efficient you are
[00:13] <arko> probably 5-6days or so if you are very conservative
[00:13] <KT5TK> That's what I try to find out.
[00:13] <arko> does it power down the gps & radio?
[00:14] <KT5TK> I switch everything off: GPS, VCXO, tx and the micro itself
[00:14] <arko> oh wow
[00:14] <KT5TK> at a 10 minute cycle
[00:14] <arko> do you have the battery line connected to keep the empheris data?
[00:15] <KT5TK> yes
[00:15] <arko> nice
[00:15] <arko> should be interesting to see what happens
[00:15] <arko> hope you don't hit too many storms
[00:15] <arko> thats what brought down my last floater :/
[00:15] <KT5TK> at this altitude it would be fatal
[00:16] <arko> heh yeah
[00:16] <arko> 5000m is pretty closse to the ground
[00:16] <KT5TK> the two AAA are heavy.
[00:16] <arko> oh yeah
[00:16] <arko> 7-9g each right?
[00:16] <arko> i forget
[00:16] <KT5TK> But I thought that the efficiency of the buck reg was better at 3 V
[00:17] <KT5TK> sorry boost & buck reg
[00:17] <arko> not sure, depends which one you used
[00:18] <KT5TK> TPS61201
[00:20] <arko> are the batteries parallel or series?
[00:20] <KT5TK> series
[00:20] <arko> ah ok
[00:20] <arko> its probably around 90%
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[00:21] <arko> assuming you are buck/boosting the 3V to around 3 to 3.3v
[00:21] <KT5TK> yes, 3.3V out
[00:21] <arko> ah cool
[00:21] <arko> nice
[00:24] <KT5TK> At 1.5 V (which I used before) the efficiency is just at 60%
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[00:38] <N2NXZ> You guys get great battery mileage...that will be the hard part on mine
[00:40] <N2NXZ> Just found my old Futaba receiver battery,it has been in the box for over 10yrs,charged up and looks good...going to run the beacon with it until it croaks for fun
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[00:53] <aadamson> arko did you fly a single AAA or AA?
[00:53] <aadamson> nice flight btw KT5TK (Thomas)
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[01:18] <KT5TK> aadamson: Thanks. Did you notice that I do need WIDE2-1?
[01:19] <aadamson> I didn't even look, let me look
[01:20] <aadamson> you know it's impossible to know whether an Igate heard you because of the dedupping that happens at the IS servers
[01:20] <aadamson> if the wide2-1 relayed you first, then it won, etc
[01:20] <aadamson> only real way to know it go NO-PATH - which I just did
[01:21] <aadamson> worked great until I got 50miles off shore :(
[01:21] <aadamson> but also the infrastructure in the jacksonville, fl area - SUCKS! :)
[01:23] <aadamson> I was being heard by an igate 220mile northeast of me, but nothing south of savannah and the balloon was only 50miles off shore...
[01:23] <aadamson> but bottom line, this Wide1-2 vs. NOPath thing.... I'm kinda disenchanted with the NOPATH thing due to recent experience
[01:24] <KT5TK> agreed.
[01:25] <aadamson> oh, looks like you are taking the path of arko's hysplit
[01:25] <aadamson> making a turn back to the east
[01:25] <KT5TK> For a balloon launch in a metro area no path is fine, but when you get to rural areas you need every digi that you can get
[01:25] <aadamson> btw, how low will the batt go before the smps will stop working
[01:26] <aadamson> yep, I'm pretty much there, just had to prove it to myself and I just did that (and fed the fishes) :)
[01:26] <KT5TK> In my experience about 0.8 V
[01:26] <aadamson> is there a buck and boost?
[01:26] <aadamson> same controller or separate?
[01:26] <KT5TK> Then the GPS freaks out and kills the battery fast
[01:27] <KT5TK> Yes, TPS61201
[01:27] <KT5TK> only one
[01:27] <KT5TK> I managed to get the uBlox to sleep through serial
[01:29] <aadamson> ah, yeh, I was looking at some of that last night actually
[01:29] <aadamson> I use PSM through serial, but noticed that you can also put it in standby
[01:29] <aadamson> and then bring it back with a 0xff on the serial port
[01:29] <KT5TK> Yes, that's how I do it
[01:30] <aadamson> awesome...
[01:32] <KT5TK> Here are all the tricks: http://ukhas.org.uk/guides:ublox_psm
[01:33] <aadamson> ah, excellent reference
[01:35] <aadamson> I have external fet based shutoff with backup power
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[01:35] <aadamson> if only the 7C didnt draw almost a half a mA in standby :)
[01:35] <aadamson> are you running the Q?
[01:35] <aadamson> it's much better in standby like 50uA or something I think
[01:36] <KT5TK> yes, I can't measure that low
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[01:36] <aadamson> thats great... when I do my 3v3 board, I'll use the 7Q
[01:37] <aadamson> I figured out the other day that I can use the exact same design as my 2.0v version just drop in an STM32F303 in place of the STM32L151
[01:37] <aadamson> got from 32mhz to 72/84 and get dsp and hardware floating point - all at the cost of more mA's
[01:38] <KT5TK> Great! that's how it should be
[01:38] <aadamson> but that isn't really a low current platform on the 303
[01:38] <aadamson> I don't even have to change any pins
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[01:38] <aadamson> I was really happy about that
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[01:39] <KT5TK> Next challenge will certainly be a pico tracker with a cellphone camera on board for ssdv or similar
[01:39] <aadamson> now that would be cool :)
[01:39] <KT5TK> There you need a faster processor
[01:40] <KT5TK> but still power saving
[01:40] <aadamson> ya spi to the camera or something *fast* :)
[01:41] <aadamson> st is supposed to come out with an L4 (cortex M4 low power) not sure when, but that should be a nice processor
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[01:42] <aadamson> did you put iss beacon in the tracker you have up?
[01:43] <aadamson> I'm still 0 fer there, but I try every pass that is above 5 degrees from where my tracker might be
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[01:43] <KT5TK> The code is there but I didn't enter any sat data
[01:43] <aadamson> ah, I just load a TLE and let it calculate the data including doppler
[01:44] <aadamson> that how you do it?
[01:44] <KT5TK> I pre-calculate the positions of the ISS and burn them in the PROGMEM
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[01:46] <KT5TK> That gives me about 5 days which was more than enough so far
[01:46] <aadamson> ah
[01:46] <aadamson> I run a version of PLAN13 that I found online and then I hacked it up
[01:47] <aadamson> it calculates every second, the lat/lon/elevation/rx dop/tx dop of the ISS
[01:47] <KT5TK> I tried that too, but they used too many variables so that the atmega ran out of RAM
[01:47] <aadamson> based upon the current gps position
[01:47] <aadamson> yah, I have 16k, but am only using about 6K
[01:48] <KT5TK> So after a day or two I gave up and just did the pre-calculation
[01:48] <aadamson> hehe
[01:48] <aadamson> Well, so far it's been for not... at 2.0v, the 4463 will only do 35mW at max power anyway
[01:49] <aadamson> and I forget are you on 2 AAA's?
[01:50] <aadamson> probably as AA's are too heavy
[01:50] <KT5TK> Yes at 3.3V I get closer to 60 mW
[01:50] <aadamson> what did you payload weigh?
[01:50] <KT5TK> 2x AAA
[01:50] <KT5TK> 19g
[01:50] <aadamson> you know that's funny... on my original design where I just did it on a pro-mini plug in board
[01:50] <aadamson> I got 100mW consistently
[01:51] <aadamson> I've never checked my current layout (it's your LPF) to see what it would do on 3v3
[01:51] <KT5TK> I wanted to try the 3 V because that's where my power reg is more efficient
[01:52] <KT5TK> 2 x AAA in series
[01:53] <aadamson> ah yeah, that makes sense on my original design it was on a 250ma 3v3 LDO
[01:54] <aadamson> so is germany home?
[01:54] <KT5TK> Yes, Berlin
[01:54] <aadamson> are you moving back home - for the foreseeable future?
[01:54] <aadamson> ah very nice!
[01:54] <aadamson> how long have you been in the US?
[01:54] <KT5TK> Yes, I need to sell my house here in Houston
[01:55] <KT5TK> 8 years
[01:55] <aadamson> ah, single, married?
[01:55] <aadamson> and I'll assume work brought you here?
[01:55] <KT5TK> married. My wife is already in Berlin
[01:55] <KT5TK> Yes QRL
[01:55] <aadamson> oh, wow, long distance romance :)...
[01:56] <aadamson> so is a work change in the works with the move as well?
[01:56] <aadamson> or do you work for a multinational company?
[01:57] <KT5TK> :) If you call my wife and me a multi-national company, yes
[01:57] <aadamson> hehe... ever better, that's the best kind of company!!!
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[03:58] <snelly> these u-Blox GPS receivers...how well do they do while in freefall after a balloon burst?
[03:58] <snelly> will they continue to report position accurately?
[04:05] <Darkside> yes
[04:06] <Darkside> they also perform well in rockets
[04:11] <snelly> sweet
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[04:36] <arko> im starting to suspect that B-66 popped or got stuck in the north pole :/
[04:36] <arko> but i dont believe it
[04:41] <arko> http://ready.arl.noaa.gov/hypubout/128962_trj001.gif
[04:41] <arko> though the blue split might explain it
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[07:30] <LeoBodnar> http://ready.arl.noaa.gov/hypubout/141902_trj001.gif
[07:32] <LeoBodnar> B-63: http://ready.arl.noaa.gov/hypubout/142236_trj001.gif
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[07:41] <LeoBodnar> nice, NOAA is now using mapquest for animation maps
[07:42] <LeoBodnar> completely unuseable
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[07:58] <cm13g09> LeoBodnar: Given that, as far as I can tell, the B-series are quietly ignoring most predictions.....
[07:58] <cm13g09> do we seriously expect that it's going to do that?
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[08:22] <LeoBodnar> they also ignore our expectations
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[08:23] <jcoxon> there is an igate in Greenland...
[08:24] <jcoxon> well there was
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[08:30] <cipherzero> How reliable is this? http://www.flightradars.eu/en_flightradar24.html
[08:31] <daveake> very, but why?
[08:33] <cipherzero> quadcopter guys here use it
[08:33] <daveake> to do what?
[08:34] <cipherzero> They shoot videos of old temples, churches and stuff
[08:34] <daveake> yes but what are they using flightradars for?
[08:35] <cipherzero> very small mountanous country, aeroport is very close
[08:36] <daveake> I assume you want to use it for HAB?
[08:36] <cipherzero> Nah
[08:36] <cipherzero> we have hydrometeo center
[08:36] <daveake> Oh, sorry, I was confused by you asking here
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[08:37] <cipherzero> https://www.youtube.com/watch?v=Aw3SKoZu-kw&list=UUjY6PBC9RGcQQyX3vovBZ4A
[08:38] <cipherzero> actually, I thought maybe some people here would be using it for habs, or suggest not to use it, so would have knowledge about its accuracy
[08:40] <jcoxon> we don't use it for tracking habs as the transponders are large and heavy
[08:40] <jcoxon> its also a big sky so collision is a very small risk
[08:40] <jcoxon> so you don't need to check before you launch
[08:41] <cipherzero> I know its small but still there
[08:41] <jcoxon> yeah but you'll find that you'll pass through the zone of aircraft very quickly
[08:41] <cipherzero> Yeah, I know
[08:41] <jcoxon> so launch we get permission
[08:41] <cipherzero> it's very very unlikely
[08:41] <jcoxon> so you can't get permission near airports etc
[08:42] <cipherzero> right
[08:42] <jcoxon> there is also the fact of what can you do
[08:42] <jcoxon> the balloon is a free once launched
[08:42] <Maxell> Chetic: flightradars.eu??? Why not just flightradar24.com?
[08:42] <Chetic> youwhatnow
[08:44] <cipherzero> Also a question about methane and hydrogen
[08:45] <gonzo__> they are both fun, what more is there to know?
[08:45] <malgar> the long waiting for the B-6* return
[08:46] <cipherzero> So this is what happened two years ago http://www.smh.com.au/world/balloon-blasts-injure-140-in-armenia-20120505-1y5aj.html
[08:46] <malgar> will they appear over england? :) or over morocco? or will they die?
[08:47] <gonzo__> yes
[08:49] <cipherzero> so uh, if filling a weather balloon with hydrogen, if there's no fire nearby, what can cause the ignition?
[08:50] <gonzo__> h2 and the public are not a great mix. I'll bet that the ignitions was someone trying to pop a balloon with a lighter for fun
[08:51] <cipherzero> I think it was actually methane in that video, dont know why the press said hydrogen
[08:51] <cipherzero> but anyway, not launching in a public place
[08:51] <gonzo__> filling your own balloon, you take the basic precautions. keep people away and don't apply a lighter
[08:52] <gonzo__> is methane that bouyant?
[08:52] <cipherzero> methane is like 4 times less than helium I think but still floats, yeah
[08:52] <gonzo__> we used to launch bin bags filled from the gas stove as kids, but it bearly had any free lift
[08:53] <gonzo__> prob not the lightest bags either
[08:53] <cipherzero> I dont remember if Ive asked this before, can static electricity happen when filling a balloon with hydrogen
[08:53] <gonzo__> (and a bit of burnming bog roll hanging below
[08:53] <Darkside> cipherzero: sure it can
[08:53] <gonzo__> (We were kids!)
[08:53] <Darkside> which is why you take precautions
[08:53] <Darkside> though it will only ignite if there's a combustible mix
[08:54] <cipherzero> sorry what?
[08:54] <gonzo__> the video did look a bit yellow. Cant all be burning latex?
[08:55] <cipherzero> I mean if the balloon rubs against itself when filling, is that enough?
[08:56] <Darkside> probably not
[08:57] <gonzo__> youi nmean static? If the balloon only has h2 in, it's pretty inert. If you filled with a mix, or the balloon bursts and mixes with air, then you have a risk
[08:57] <gonzo__> but if there is just a burst, the H2 tends to go away all by itself.
[08:58] <Trieste> on a related note, how dangerous is it really? is it still just a huge bang at HAB volumes, or something more dangerous?
[08:58] <cipherzero> No, I mean when you have pure h2, no cigarette, fire or electronics near it and are filling the balloon, can your hands/the balloon itself, the filler head cause something
[08:59] <cipherzero> *"nozzle", i think its called in english
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[09:02] <gonzo__> A little waterbomb/balloon (size of a fist) with just H2 just goes pop. A party balloon with a good H2/O2 mix will go off like a shotgun
[09:02] <gonzo__> I expect a wx balloon will go woof, but it's the burning latex that is the bigger hazard
[09:03] <cipherzero> Or is the only thing I should worry about then if the balloon will rub against the tank wall?
[09:03] <gonzo__> cipherzero, I expect that as long as you don't have any leaks, so no H2/air mix, you are pretty safe. Ant static spark inside the balloon shoudl not be able to cause ignition, as it is pure H2
[09:04] <gonzo__> outside the balloon, there should be no H2
[09:04] <craag> static electricity is only going to cause a problem if it's inside the balloon AND there's oxygen inside the balloon.
[09:04] <daveake> The video I saw, of a wx balloon filled with H2 and ignited by a flame, did indeed go "whoomf" and flew off with the wind dripping burning latex as it went. The h2 was soon gone. Main risk is the latex.
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[09:04] <cipherzero> well OK. But there's always a little bit of air in any balloon before you dill it, right?
[09:04] <cipherzero> *fill
[09:05] <daveake> Hardly any
[09:05] <daveake> The flammable mixture lasts for just a moment as you start to fill
[09:05] <gonzo__> there is a YT video of a huge h2/O2 mix foil balloon being intentionally (and quite stupidly) lit
[09:05] <cipherzero> so you think its negligible to cause a reaction?
[09:05] <daveake> gonzo__ Yes that one went *bang*
[09:05] <craag> With good precautions, no-one here has had any incident (afaik)
[09:05] <gonzo__> it was impressive
[09:06] <daveake> cipherzero Keep flames away and it'll be fine
[09:06] <craag> Also any H2 leak will go upwards and disperse very quickly
[09:06] <daveake> yup
[09:06] <gonzo__> another one from the same place I think, they were filling party balloons with mix and some fuse. Floating thom out ofte the sports field
[09:06] <cipherzero> Anyone here used hydrogen themselves? Ive heard helium is a lot cheaper in US/Europe, albeit still expensive
[09:06] <gonzo__> with a main road at the end!
[09:06] <daveake> Oh yes, don't inflate indoors
[09:06] <daveake> that would be really stupid
[09:06] <daveake> Yes I use H2 all the time
[09:06] <cipherzero> OK then
[09:07] <cipherzero> And why would you fill a weather balloon indoors? it will hardly pass the doors
[09:07] <daveake> I did get a cylinder of He recently for a public event, which in the end never happened, and I wouldn't use H2 for a foil balloon, but otherwise it's H2 all the way
[09:08] <gonzo__> The net office have a hut out in a field for filling (so they can fill out of the wind) They will often use a fire hood, just in case. But that is all health and safety legistaltuion (overreaction)
[09:08] <daveake> indoors in an industrial building with large shutter doors for example
[09:08] <cipherzero> Oh
[09:08] <cipherzero> And one more thing I just remembered
[09:08] Nick change: jaymzx -> jaymzx_away
[09:08] <cipherzero> If its a very hot sunny day, is that a problem?
[09:09] <cipherzero> by that I mean 38C
[09:09] <cipherzero> and open sky sun
[09:09] <chrisstubbsw> daveake: do you collect you H2 from BOC usually or get it delivered?
[09:09] <daveake> Beyond our experience :p
[09:09] <daveake> chrisstubbsw I collect, 'cos they charge a lot to deliver
[09:10] <chrisstubbsw> Yeah they do! When I enquired about collecting they told me my car wasn't suitable
[09:10] <cipherzero> daveake, was your reply to me?
[09:10] <daveake> Never heard that
[09:11] <daveake> cipherzero, Yes, never gets that hot here! Anycase, not an issue
[09:11] <gonzo__> I just drive with the windows open in case of a leak
[09:11] <cipherzero> UK? :P
[09:11] <chrisstubbsw> Recent ford fiesta, plenty of room. They said it was no problem if my dad picked it up in his kia though... Not much difference in size or anything... Logic...
[09:12] <daveake> There's BOC advice to carry cylinders in an open vehicle, but it's just advice not "must"
[09:12] <daveake> Never had an issue when I roll up in the Shogun
[09:12] <craag> Chatting to one of the BOC guys - there's a lot of advice, and very little is mandatory.
[09:12] <chrisstubbsw> They said a 4x4 was more "appropriate"
[09:12] <daveake> Yep
[09:13] <daveake> :)
[09:13] <cipherzero> The reason I asked was if the strong sunlight would burn the latex
[09:13] <chrisstubbsw> Oh well, will take it back in my car and demonstrate there is no problem
[09:13] <craag> He drove around without compressed gas labels on, got pulled over a lot, but wasn't in the wrong.
[09:13] <chrisstubbsw> *breaks back*
[09:13] <gonzo__> the only real precaution worth noting with H2... Don't 'snift' the bottle. That means, to open the valve without the regulator fitted, to clear and dirt from it. Just brush the valve and threads instead
[09:13] <daveake> If it's the big H2 cylinder, you *really* need a flat loading area
[09:13] <daveake> So if the back of the car has a lip it's probably not going int
[09:13] <daveake> in
[09:14] <daveake> 70kg remember
[09:14] <cipherzero> Yeah...
[09:14] <gonzo__> the balloon will be in FAR stronger sunlight when it gets into the upper atmosphere, than it will ever get on the ground
[09:14] <daveake> Ideal: a 4x4 with a big lump of metal for a bumper :)
[09:14] <gonzo__> and theywill still hold up for a day
[09:15] <cipherzero> I'll see if I can source h2 cylinders from the university. I have a balloon guy who has been filling balloons for decades but hes only used helium and methane
[09:15] <cipherzero> gonzo_, gotcha
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[09:20] <malgar> does Bodnar use helium or hydrogen?
[09:21] <gonzo__> He I believe, as he is using foils
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[09:27] <malgar> I would like to try to calculate the Helium leakage from Bodnar's balloon but I would need a website/service that could give me the local atm. pressure given coordinates and time.. or at least a pressure map of that instant/area
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[09:27] <Navrac_work> blimey - you go away for a few days and Leos just about circumnavigated the globe
[09:29] <fsphil> hah
[09:29] <fsphil> well, hemisphere
[09:32] <gonzo__> wonder what the word is for a non circumferential once around the planet?
[09:35] <Navrac_work> A long trip to nowhere?
[09:36] <craag> walking in circles?
[09:37] <Navrac_work> o short trip I guess if you are at one of the poles
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[09:38] <chrisstubbsw> Might have to come up with something to bring it above the lip then daveake
[09:38] <mfa298> there must be some reference to Phileas Fogg in there
[09:38] <chrisstubbsw> sounds like a 2/3 person job to get it in and out
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[09:40] <daveake> Yeah with a flat bay it's a 1-man job - tilt down and rest on the car, hoik up the bottom of the cylinder and give it a good shove.
[09:40] <daveake> The cylinders are quite tall so make sure there's enough depth to the boot
[09:41] <daveake> Worth getting a red "flammable gas" magnetic sticker
[09:41] <daveake> Might stop people driving too close :p
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[09:42] <craag> Hah, you can wish!
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[09:42] <craag> "Hmm can't read the writing on that warning sticker, I'll sit on his back bumper so I can take a good look"
[09:43] <daveake> How about a big vinyl sheet in the rear window - "Hindenberg Recreation Team - Gas Supply Vehicle"
[09:44] <craag> that'd do it!
[09:44] <fsphil> Surefire Gas Transport Company
[09:44] <mfa298> either that or the person in the car behind will grab their phone so they can googl Hindenberg
[09:44] <craag> Big Bang Surprises Ltd.
[09:45] <fsphil> "0" days since the last explosion
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[09:46] <daveake> lol
[09:46] <daveake> £12.50 for a custom vinyl decal for the spare wheel :)
[09:47] <daveake> tempting lol
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[09:49] <gonzo__> get custom reg plate R101
[09:49] <daveake> "Unfortunately there were no matches for your search query."
[09:50] <daveake> R101 HAB would have been good :)
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[09:56] <gonzo__> lots of R101 matches, just not with good letters, or a good price
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[10:33] Action: cm13g09 goes away for a couple of hours - and has entertainment reading scrollback :)
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[10:59] <YO9ICT> Any news B-63,64,66 ?
[11:01] <gonzo__> predicted landfall in about 36hrs
[11:01] <gonzo__> it's out over the atlantic at the mo (we think!)
[11:02] <daveake> coming home
[11:06] <Laurenceb_> hysplit says tomorrow evening
[11:06] <mattbrejza> when was the last time a balloon was on time for its hysplit?
[11:07] <Laurenceb_> B-64 crossed the pacific faster than hysplit
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[11:24] <mattbrejza> today is 3 weeks for B-63 i think
[11:27] <malgar> dead? :)
[11:30] <lz1dev> b-63 is gonna get lost over the ocean looks like
[11:30] <lz1dev> b64 might make it back to EU
[11:32] <mattbrejza> some of the b64 ones dont look too promising either
[11:34] <SpeedEvil> 64 seems to be going everywhere
[11:36] <Laurenceb_> http://ready.arl.noaa.gov/hypubout/154172_trj001.gif
[11:36] <Laurenceb_> not too bad
[11:36] <SpeedEvil> vk3yt seems to be a really nice trajectory for a circumnavigation
[11:37] <Laurenceb_> what happened to Kt5TK-5?
[11:39] <SpeedEvil> Laurenceb_: the above hysplit - it lists three source altitudes. Why are there >>3 trails?
[11:39] <Laurenceb_> error modelling
[11:40] <SpeedEvil> Oh - the models have built in error bars?
[11:41] <Laurenceb_> maybe not that accurate...
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[11:46] <amell> seems to be a distinct lack of balloons of late in the UK
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[11:52] <gonzo__> they have all emigrated
[11:53] <Laurenceb_> http://ready.arl.noaa.gov/hypubout/156539_trj001.gif
[11:53] <Laurenceb_> B-63 is azores then spain/portugal
[11:56] <gonzo__> has anyone let the azores aprs station know that it is on it's way as I think they use 144.800 there
[11:56] <gonzo__> or will, the hab use that freq in that location?:@
[11:57] <gonzo__> (That wasn't a smiley, it was a fat fingered kbd mash)
[11:57] <LeoBodnar> we've been to Azores before
[11:57] <Laurenceb_> best to ask Leo what his geofence retunes to
[11:59] <LeoBodnar> http://aprs.fi/#!mt=roadmap&z=4&ts=1397347200&te=1397433600&call=a%2FM0XER-5
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[12:02] <amell> clearly Leo has had a practice run in the Azores previously.
[12:03] Action: amell thinks its time there was another B launched. hint hint.
[12:06] <LeoBodnar> B-63 http://ready.arl.noaa.gov/hypubout/157024_trj001.gif
[12:07] <LeoBodnar> B-64 http://ready.arl.noaa.gov/hypubout/156857_trj001.gif
[12:10] <Boelle_DK> while on the subject of another B launch.... could it be possible to do a remote cut down once it has done a trip arround the globe by sending it a APRS msg ?
[12:11] <LeoBodnar> why?
[12:14] <Boelle_DK> if you want it down and not a sec. trip arround
[12:14] <Boelle_DK> in fact i'm just currious about the APRS system, i have seen it can work both ways but cant quite figure how it would be done
[12:15] <Boelle_DK> there are these kits that give you a small display and a ps2 connector for keyboard
[12:15] <mattbrejza> high power laser cutdown ftw
[12:15] <mattbrejza> pew pew
[12:15] <Boelle_DK> hehehehehehehee
[12:15] <Boelle_DK> or call the armed forces and ask if they are up for some pratice shooting :-P
[12:15] <Boelle_DK> just supply the gps data
[12:16] <mattbrejza> aprs controlled laser turrent doesnt sound like a good idea though
[12:16] <lz1dev> aprs <insert anything>
[12:16] <nats`> on a pico the cut down will be useless
[12:16] <nats`> you'll have a few chance to find it back anyway
[12:16] <nats`> an electronic board of few centimeter....
[12:17] <Boelle_DK> attach smoke flare....
[12:17] <Boelle_DK> fire that remotely once you are in the area
[12:17] <Boelle_DK> but it was more if it could be done and maybe how
[12:18] <mattbrejza> the balloon can listen to aprs just like anything else
[12:18] <mfa298> why would you want to cut down a Leo pico. You never know it could continue to do a complete circuit of the southern hemisphere next
[12:19] <Boelle_DK> not a leo spec.... just a genral Q...
[12:19] <Boelle_DK> i might need it to get a permit for launch, if at all the danish auth will issue one
[12:20] <Boelle_DK> its for those cases where weather changes and they say abort the flight
[12:20] <Boelle_DK> which is a possiblity, thou slim
[12:22] <Boelle_DK> and sorry if i'm slow or sound short im my words... reading up for the ham exam
[12:28] <Laurenceb_> http://i.imgur.com/zR7gTub.jpg
[12:28] <Laurenceb_> lol
[12:29] <lz1dev> awww
[12:29] <lz1dev> its like a mommy feeding it's children
[12:35] <mfa298> I'm not sure I'd want to rely on APRS as a cutdown mechanism until after doing lots of testing to check that I can send messages to a balloon
[12:36] <mfa298> If it's related to a permit you may be better off with something like a timed cutdown or geofence cutdown.
[12:37] <mfa298> People have done remote cutdown before but that's generally been by sending a high powered RTTY (I think) packet directed at the balloon
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[12:41] <craag> People have used an OOK uplink (SHARP), or rfm22 native packet uplink (horus). Both with high power on the ground and yagis.
[12:41] <craag> Both though I believe also had altitude and time triggers.
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[12:42] <LeoBodnar> yay http://leobodnar.com/balloons/files/IMG_2459.jpg
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[12:43] <craag> oooo satellite :D
[12:43] <mfa298> but if you're doing a timed cutdown don't have the trigger coded into the firmware (as I think SHARP did), by the time they launched there wasn't much time left before the trigger fired.
[12:43] <bertrik> LeoBodnar: what is it?
[12:43] <craag> bertrik: It's a globalstar satcomms transmitter
[12:44] <craag> bertrik: http://www.globalstar.com/shop/index.php?main_page=product_info&products_id=108
[12:45] <bertrik> oh, nice. For my electrical engineering studies, I did some research on globalstar/IS-95
[12:45] <mattbrejza> the sharp uplink was the same as the apex II uplink, and that worked with 5W from a handheld
[12:45] <craag> 325mA at 3.3V TX
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[12:45] <daveake> mfa298, That was funny :)
[12:47] <craag> They had a bug til the last flight that if the rssi trigger was activated, but the packet didn't decode, it froze.
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[12:47] <craag> luckily that never happened :P
[12:47] <Darkside> mattbrejza: what was the uplink?
[12:48] <mattbrejza> 37.5 baud OOK rs232 over FM
[12:48] <Darkside> heh ok
[12:48] <Boelle_DK> ...
[12:48] <Darkside> nice
[12:48] <Darkside> bit slower than what i use haha :P
[12:48] <mattbrejza> using one of the radiometrix transcievers balloon side
[12:50] <Darkside> mmk
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[13:01] <OZ1SKY_Brian> SA6BSS are you there?
[13:04] <bertrik> what I like about things with an FCC-ID printed on the outside, is that you can go to the FCC website and download a pdf with pictures of the inside :)
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[13:35] <N2NXZ> Have B-63-64 moved since last eve?
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[13:44] <OZ1SKY_Brian> N2NXZ Hi. No updates for last 24h
[13:44] <OZ1SKY_Brian> correction, B-63 was last updated at 1910 cet last night
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[13:45] <OZ1SKY_Brian> might not see them before they hit island or ireland/uk
[13:45] <OZ1SKY_Brian> dont think greenland got any aprs
[13:51] <OZ1SKY_Brian> ok found 1 aprs station in Greenland, but i think its to high up north, for the B-6X´s path
[13:54] <Reb-SM0ULC> OZ1SKY_Brian: looked for bss specific or SM-operators?
[13:55] <OZ1SKY_Brian> Hi Reb. Wanted him to to check SK4BX on 432.460
[13:55] <Reb-SM0ULC> aah
[13:56] <OZ1SKY_Brian> got some tropo that way today
[13:56] <Reb-SM0ULC> i have my 70cm pointing to you
[13:57] <OZ1SKY_Brian> H or V ?
[13:58] <N2NXZ> <OZ1SKY_Brian> Thank you,hope they continue to function
[13:59] <OZ1SKY_Brian> N2NXZ yes would be great to get them back
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[13:59] <OZ1SKY_Brian> could you check 432460 beacon?
[13:59] <N2NXZ> I will email one of my Greenland contacts now if it helps.
[13:59] <OZ1SKY_Brian> Reb
[14:00] <N2NXZ> Any flight projection I could send him?
[14:00] <OZ1SKY_Brian> LeoBodnar might have some, i haven´t
[14:01] <N2NXZ> ox3xr
[14:03] <OZ1SKY_Brian> The problem with APRS in Greenland is the internet connection. Ive been there a few times to work and also know another one that in Greenland offent. Would be no problem setting up a remote tracking station, the problem is the internet connection that cost a fortune
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[14:08] <N2NXZ> Maybe it can be recorded or at least copied if it helps.
[14:08] <N2NXZ> Is there any other transmissions used besides APRS?
[14:09] <OZ1SKY_Brian> i dont know if the 434.500 beacon is active
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[14:09] <N2NXZ> I could mention it anyhow in my email
[14:09] <OZ1SKY_Brian> and what freq it uses over greenland
[14:09] <OZ1SKY_Brian> here in EU we use 144800 for aprs
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[14:10] <N2NXZ> So we not yet know if UHF or 144.8 has been activated?
[14:10] <N2NXZ> Not really sure how these were setup
[14:11] <OZ1SKY_Brian> But since Greenland is in IARU REG2, i dont know what freq Leo have set it for
[14:11] <N2NXZ> I can wait to send email until I know the facts
[14:11] <OZ1SKY_Brian> yes i think thats a better idea
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[14:12] <OZ1SKY_Brian> LeoBodnar can answer when he gets back
[14:12] <Laurenceb_> has anyone here used a beaglebone?
[14:12] <N2NXZ> It works out anyhow since I have one going up in a few weeks
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[14:20] <N2NXZ> Sent Peter a heads up.I will let him know transmitting frquency when available.
[14:21] <LeoBodnar> i use 144.390 until 30W longitude and then 144.800 further East
[14:21] <LeoBodnar> 434.500 will turn back on after 30W
[14:22] <mattbrejza> http://ready.arl.noaa.gov/hypubout/156857_trj001.gif for ref
[14:24] <OZ1SKY_Brian> mattbrejza is that for 10 20 and 30km alt?
[14:24] <mattbrejza> no idea, didnt make it. it says relhumid :/
[14:25] <OZ1SKY_Brian> ah ok
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[14:26] <N2NXZ> <mattbrejza> Thank you for the link
[14:27] <mattbrejza> 13:06:58 < LeoBodnar> B-63 http://ready.arl.noaa.gov/hypubout/157024_trj001.gif
[14:27] <mattbrejza> 13:07:18 < LeoBodnar> B-64 http://ready.arl.noaa.gov/hypubout/156857_trj001.gif
[14:27] <LeoBodnar> it's fo 12200 12500 and 12700
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[14:29] <N2NXZ> <LeoBodnar> Thanks for those :)
[14:30] <N2NXZ> So 30w is basically after Greenland,no point in mentioning that to him
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[14:32] <OZ1SKY_Brian> N2NXZ yes he should just listen on the US APRS freq then
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[14:33] <N2NXZ> Email sent..hope he can help.
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[14:45] <N2NXZ> Found one APRS station in Greenland http://aprs.fi/#!call=a%2FOX5T&timerange=3600&tail=3600
[14:46] <N2NXZ> And my search found this which may have some contacts for you > http://www.tapr.org/pipermail/aprssig/2009-April/029291.html
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[14:54] <YO9ICT> ox5t@oz5bd.dk
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[15:27] <mightymik> Lithiuim Ultimate is the battery that everyone uses here isn't it?
[15:27] <eroomde> yes
[15:27] <YO9ICT> Yes
[15:28] <N2NXZ> What is best for soalr?
[15:29] <N2NXZ> solar
[15:29] <mightymik> I have a meter that needs a new set of betteries ...
[15:30] <eroomde> N2NXZ, do you mean that you wan't something rechargeable to make a combined solar/battery power unit?
[15:30] <N2NXZ> Yes
[15:31] <N2NXZ> I have Li-ions and made a pack to test,it lasted 19.5 hours with no assistance...then again,ground temps too.
[15:32] <eroomde> I think most people use lithium-polymer, those who've done it probably have opinins about brands, in general rechargeable batteries don't have the low-temperature performance of lithium prime cells so you need to think about thermal management a bit more
[15:32] <N2NXZ> Yes...but also have lasting power for at least 3-4 days
[15:32] <eroomde> ?
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[15:32] <N2NXZ> I would hate to need 12 batteries :)
[15:33] <eroomde> i presume that if you go non-rechargeable it lasts ans long as it lasts, and if you go solar/rechargeable you design it to last indefinitely
[15:33] <N2NXZ> I like indefinate
[15:34] <N2NXZ> 19.5 hours should give soalr time to work during daylight I assume?
[15:34] <N2NXZ> solar...wow
[15:34] <eroomde> I guess it's a problem coupled tightly to how much power you use
[15:34] <eroomde> and surface area of cells, and so on
[15:34] <N2NXZ> Have to think this out
[15:35] <N2NXZ> Dead batts would be not good
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[15:36] <N2NXZ> More ground testing for me yet
[15:37] <eroomde> yeah
[15:37] <eroomde> i'd consider it a two-part problem
[15:37] <eroomde> 1) a reliable lower power flight computer
[15:37] <N2NXZ> It sure is,I think we can pull it off
[15:37] <eroomde> 2) a reliable power supply unit once you know the requirments from (1)
[15:37] <eroomde> then couple 1 and 2
[15:41] <N2NXZ> Trying to grab some APRS on a Nova Scotia web tuner :)
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[15:50] <floater> What would happen if you had regular primary cells, connected in paralel with a solar panel (diode biased) that can produice slightly above the primary cells pack voltage? Would the payload suck mainly off the solar array when it was providing power higher than the battery pace and then the battery pack once the sun went down?
[15:51] <LeoBodnar> that's early SP3OSJ
[15:52] <LeoBodnar> he also tried charging primaries to spectacular results
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[15:54] <eroomde> floater, yes that kind of thing can work, but as you probably realise it's not so efficient
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[16:15] <N2NXZ> This seemed interesting at first..http://shiptrak.org/?callsign=&filter=0
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[16:26] <N2NXZ> Would be great to find amateur maritime stations for balloon flights.Something worth looking into.http://www.marinetraffic.com/ais/home?centerx=30&centery=25&zoom=2&level1=140
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[16:45] <DL7AD_mobile> N2NXZ that would be noy good because AIS is also used for collision detection. It would be a mess.
[16:46] <jcoxon> N2NXZ, we are working on a licence exempt network called UKHASnet
[16:46] <N2NXZ> Cool
[16:46] <jcoxon> which will hopefully have drifting buoys
[16:46] <eroomde> jcoxon, ping
[16:47] <N2NXZ> I was thinking more or less willing amateurs out to sea already
[16:47] <N2NXZ> We need new satellites to aid in this stuff too
[16:48] <N2NXZ> Amateur sats have pretty much dies off for the most part
[16:48] <jcoxon> N2NXZ, most likely the buoys will be old payloads :-0
[16:48] <N2NXZ> lol
[16:49] <N2NXZ> UPU knows of three such buoys
[16:49] <jcoxon> also we'll make balloon networks
[16:49] <N2NXZ> I help deploy his last year :)
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[16:53] <Laurenceb_> fsphil: is there a python version of SSDV?
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[16:57] <Laurenceb_> ah nvm
[16:57] <Laurenceb_> https://github.com/fsphil/ssdv
[16:57] <Laurenceb_> i see
[16:58] <Laurenceb_> needs a usage example :P
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[17:16] <LeoBodnar> NOAA Hysplit is all broken. But new map is fancy.
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[17:16] <LeoBodnar> And so slow it's useless
[17:16] <LeoBodnar> well done
[17:17] <fsphil> Laurenceb_: yea documentation is lacking
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[17:26] <lz1dev> mapquest
[17:26] <lz1dev> oh god
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[17:27] <lz1dev> i think my firefox died
[17:27] <lz1dev> rip
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[17:32] <nu0rr> hi
[17:33] <nu0rr> how do I use common.invalid_gps_lock() in genpayload?
[17:33] <nu0rr> I recall seeing that before but I cant find it
[17:35] <LeoBodnar> somebody actually gets paid for making NOAA unuseable
[17:37] <lz1dev> probably not making millions tbh
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[17:46] <YO9ICT> https://www.youtube.com/watch?v=QLfHU8tiHBk very interesting
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[18:01] <cm13g09> mfa298: I sourced some jumpers - no need to give me any for the moment!
[18:03] <mfa298> cm13g09: there still in my bag and may end up staying there for a while
[18:03] Action: mfa298 should probably leave the office
[18:04] <cm13g09> lol
[18:05] <cm13g09> you really should Mike
[18:10] <craag> Sitting here at home wondering why an rsync down from linode is going so slowly (only 2mbps)..
[18:10] <craag> #tunneledipv6problems
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[18:11] <cm13g09> craag: lol
[18:11] <cm13g09> Which tunnelbroker
[18:14] <craag> you'd know better than me :P
[18:14] <craag> switched it off for now
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[18:14] <craag> 25mbps down :)
[18:16] <mfa298> sounds like it could be some dodgy mtu settings for the ipv6 (interface needs to be small enough to be encapsulated in the IPv4 packets (which may not be the standard 1500 either)
[18:17] <mfa298> if only ISPs could start offering native IPv6
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[18:18] <craag> I've heard rumours that virgin media has already started rolling native v6 out to a beta group
[18:18] <craag> And apparently it's gone well
[18:20] Action: mfa298 departs for home ...
[18:20] <cm13g09> craag: We asked TalkTalk Business about it
[18:20] <cm13g09> in the office
[18:21] <cm13g09> "We have made the business decision not to support IPv6"
[18:21] <cm13g09> go figure!
[18:21] <craag> wut
[18:22] <maxmed> My code now seems to pretty much work! It transmits the gps data and saves it to the sd card. It still seems to have problems getting the altitude (says it is 9999999m which means its not yet been determined) but gets there eventually. The other problem is when it loses the gps lock the message it keeps transmitting is doggy and missing lots of the information rather than the last "good" data. Any suggestions how to fix this?
[18:22] <craag> carrier grade nat ftw right?
[18:22] <maxmed> code here: https://github.com/Max-Med/New_HAB_Code/blob/master/New_HAB_Code_ino_ino/New_HAB_Code_ino_ino.ino
[18:24] <cm13g09> craag: clearly so
[18:25] <cm13g09> we have since found out that TT's internals are *mainly* IPv6 :P
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[19:02] <mikestir> craag: that would be very nice (ipv6) - I have to leave my ipv6 tunnel off most of the time because it cripples my connection
[19:05] <mfa298> I've not noticed any obvious issues with my IPv6 tunnel, but then the ADSL isn't that fast anyway and most IPv6 stuff is google so not that bandwidth hungry
[19:05] <mikestir> the problem is some sites are starting to prefer IPv6, so if it's there they run slower
[19:05] <mikestir> I find the tunnel tops out about 25 Mbps
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[19:07] <mikestir> IPv4 will break 130M at off-peak times
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[19:09] Nick change: MichaelC1 -> MichaelC
[19:12] Action: mfa298 dreams of 25Mbps
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[19:13] <mfa298> that's about 3x as fast as I get for IPv4
[19:13] <craag> mfa298: You'll need to sign up for the SUWS Wifi2me service
[19:14] <craag> !h (wireless-N dish on a 2-axis rotator on susu)
[19:15] <mfa298> IPv6 is about the same as IPv4 http://img2.ipv6-test.com/speedtest/result/2014/07/29/515210e9f923980a74a2eec1a9fb58cf.png (Top is IPv4, Bottom IPv6)
[19:15] <nigelvh> What tunnel you guys using?
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[19:16] <mfa298> I don't think !h works with zeusbot
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[19:16] <craag> meh oh well
[19:16] <mfa298> I'm using Hurricane Electric now, I used to use Sixxs
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[19:17] <craag> nigelvh: HE here
[19:17] <nigelvh> Hmm, my tunnel with HE is very performant
[19:17] <mikestir> http://img2.ipv6-test.com/speedtest/result/2014/07/29/a38fe1ee9dc39c8bbbd65724c9e7d66e.png
[19:17] <nigelvh> traceroute is a few ms slower, but I don't have any speed issues.
[19:17] <cm13g09> mfa298: I'm a sixxs user
[19:17] <nigelvh> Let me try a speedtest for the hell of it.
[19:18] <mfa298> I stopped using sixxs at home as I kept being annoyed by google thinking I was in ireland (.ie pop as .uk pops didn't exist when I signed up)
[19:18] <mikestir> bad ipv4 performance at the moment here - must be lots of cat pic downloading going on
[19:19] <cm13g09> My IPv4: 7.02Mbps, v6 (via SIXXS @ Goscomb): 6.89Mbps
[19:19] <Upu> http://img2.ipv6-test.com/speedtest/result/2014/07/29/08f6217f257eb1f3ce07f02b6df46244.png
[19:19] <Upu> using sixxs
[19:19] <Upu> I have native IPv6 but can't use it as my firewall doesn't do IPv6 via PPPoE
[19:19] <cm13g09> AH
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[19:20] <cm13g09> Upu: direct Entanet customer?
[19:20] <Upu> yeah I'm a reseller
[19:20] <cm13g09> like the company I work for ;)
[19:20] <Upu> evil pesky resellers
[19:20] <cm13g09> lol - only use Enta for their DSLs
[19:21] <Upu> leased lines are pretty good
[19:21] <cm13g09> and were also blinking expensive
[19:21] <Upu> leased lines always are
[19:21] <Upu> they've come down
[19:21] <Upu> a little
[19:21] <cm13g09> yeah - but we're finding ExpoE, Virgin, Colt can all beat Enta
[19:22] <Upu> must be the area
[19:22] <cm13g09> clearly....
[19:22] <Upu> the only issue is they always sell 10Mb on a 10Mb bearer with a 5 year contract
[19:22] <cm13g09> ah
[19:22] <Upu> which is full retard for comms
[19:22] <cm13g09> yeah
[19:22] <cm13g09> that's not clever
[19:22] <cm13g09> we always insist on 100Mb minimum bearer
[19:22] <Upu> whereas Enta will sell you 10Mb on a 100Mb bearer or 1Gb bearer for no more than 3 years
[19:22] <Upu> Virgin are a pita for that
[19:22] <cm13g09> which Expo, VM and Colt will do for us
[19:23] <cm13g09> EFMs are a fun one though
[19:23] <Upu> they suck too
[19:23] <cm13g09> lol
[19:23] <cm13g09> they do, but it's often what companies we deal with want
[19:23] <Upu> here's your out of date 4Mb up 4Mb down for 1 million pounds a month
[19:24] <cm13g09> yep
[19:24] <cm13g09> not with TalkTalk Business
[19:24] <cm13g09> it seems
[19:24] <Upu> conversation went like this "derp sdsl is dead, nothing to replace, what do ? Polish a turd!"
[19:24] <nigelvh> That site seems to only have testing servers across the world from me.
[19:25] <Upu> oxymoron
[19:25] <Upu> TalkTalk Business
[19:25] <fsphil> UnableToTalkTalk
[19:25] <Upu> Like Virgin business
[19:25] <Upu> fixed Ip address*
[19:25] <Upu> *may change
[19:26] <Upu> Plusnet "honest broadband from yorkshire"*
[19:26] <Upu> *wholly owned by BT PLC
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[19:28] <nigelvh> Alright, IPv4 54Mbit, IPv6 51Mbit
[19:29] <fsphil> nice
[19:29] <nigelvh> So, HE isn't really slowing me down.
[19:30] <nigelvh> Then again, the HE tunnel server I'm using is here in the city, so I'm not far from it.
[19:31] <fsphil> my isp does native ipv6 and have a tunnel service for people without compatible routers
[19:32] <cm13g09> lots of ISPeople here ;)
[19:32] <nigelvh> I have Comcast, and they've been working on native IPv6. I was using it for a while, but it started acting really shitty and, for example, just stop routing properly. So I went back to HE.
[19:33] <mfa298> last time I tried asking my ISP about IPv6 they told me not to worry as they had plenty of IPv6. Although this was just after the IPv6 launch day and I mentioned the rate IPv6 addresses were declining.
[19:33] <mfa298> (They do also give me a /29 to use)
[19:34] <fsphil> I've more ipv4 addresses than I need atm, but don't tell them :)
[19:34] <LeoBodnar> vanity ones?
[19:34] <nigelvh> I have a /24 and a /25 of IPv4, but I've been mostly putting new shit on V6
[19:34] <nigelvh> My Stratum 1 NTP server is IPv4 though
[19:35] <nigelvh> time.k7nvh.com
[19:35] <fsphil> I need a better ivp6 router. my old wrt54gl is donig it, and it's slower than my connection
[19:35] <nigelvh> Delicious delicious time.
[19:35] <cm13g09> I can GET a /24, routed specially....
[19:35] <cm13g09> but don't a) need it
[19:35] <cm13g09> b) want it
[19:35] <nigelvh> ^^^
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[19:36] <nigelvh> I need to work on getting more of the v4 stuff over to my v6 space.
[19:36] <nigelvh> Actually make use of the /48 HE gives me.
[19:37] <mfa298> most of my stuff at home is dual stack. although most of the VM's are private IPv4 with reverse http proxy.
[19:37] <nigelvh> Yeah, I don't have any proxying. Just standard firewalls.
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[19:39] <lookupwayup> I asked this yesterday, but would anyone be interested in tracking an attempt at placing a transmitter into orbit? (per m-prize) probably fairly soon
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[19:39] <lookupwayup> Just looking around to get an idea of who's avilable and opibiobs
[19:39] <craag> lookupwayup: Sure, just announce it when you launch it :)
[19:39] <craag> Where in the world?
[19:39] <harvy> Hi, can anyone help with an ntx2b issue?
[19:40] <lookupwayup> Central Canada
[19:40] <craag> Ah, haven't got many canadians here
[19:40] <lookupwayup> no worries, i need people from all around the globe
[19:40] <craag> Might be worth visiting some ham radio clubs to drum up some local interest
[19:40] <craag> Well europe are very well equipped to help out!
[19:41] <lookupwayup> seems like it
[19:41] <nigelvh> lookupwayup, Western U.S. here. Launch it and I'll listen out for it.
[19:41] <lookupwayup> thanks
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[19:41] <lookupwayup> it'll definitely be in range for atleast part of its trajectory
[19:42] <lookupwayup> i guess arhab.org is the best resource for finding the most volunteers for this task?
[19:42] <nigelvh> I would send an email out to the mailing list with the time and date and frequency and mode and etc.
[19:42] <harvy> Does anyone know what would happen if you applied 12V to the enable pin on the NTX2B?
[19:43] <lookupwayup> thx
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[19:43] <mattbrejza> harvy: does it not work any more?
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[19:43] <mattbrejza> just a guess
[19:43] <harvy> nope.
[19:44] <nigelvh> Yeah, I would guess "bad stuff"(TM)
[19:44] <mattbrejza> actually not sure what vin max is for those
[19:44] <harvy> I looked at the datasheet and it looks like it should be ok
[19:44] <harvy> http://www.radiometrix.com/files/additional/NTX2B.pdf
[19:44] <harvy> page 3
[19:44] <harvy> it claims the max voltage is VCC
[19:44] <mfa298> supply is listed as 2.9 - 15V
[19:45] <mfa298> and enable I think it anything up to the supply voltage
[19:45] <mattbrejza> but if you hadnt connected anything to vcc then vcc will be 0V
[19:45] <nigelvh> Yeah, if EN goes higher than VCC, that would be bad.
[19:45] <harvy> That's what I thought, I'm stumped then.
[19:45] <harvy> I am using the same for both VCC and En.
[19:46] <nigelvh> Did you have a load connected to the output?
[19:46] <harvy> I tried wiring it up to a 12V supply and it just didn't work, so reverted back to 5 and it stopped working.
[19:46] <harvy> @nigelvh what do you mean by output? The transmitter?
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[19:47] <nigelvh> Yes, on the antenna connection, what was attached?
[19:47] <harvy> No antenna, just breadboard.
[19:47] <nigelvh> That could be it.
[19:47] <nigelvh> NEVER NEVER NEVER NEVER NEVER run a transmitter without an antenna or a dummy load resistor
[19:47] <mfa298> looks like it's an LDO to 3V internally so most of that extra voltage will just be turned into heat.
[19:48] <harvy> It's been running fine without an antenna for a few weeks now.
[19:48] <harvy> Even habwiki, states it can be run without one for testing.
[19:48] <mikestir> it'll be fine - it's only 10mW
[19:48] <craag> nigelvh: The NTX2s are fine without an antenna, they're only 10mW and built like bricks.
[19:48] <craag> bad practice I agree
[19:48] <nigelvh> Eeeeeh. I don't trust that.
[19:48] <mfa298> ntx2 should be fine with no antenna although it's generally not the best design
[19:48] <nigelvh> Especially if you're pushing higher voltages in to begin with.
[19:49] <mikestir> high vswr is only a problem due to excessive dissipation, so it's unlikely to do any harm to a small tx like that
[19:49] <harvy> So what's the chance higher voltages w/o antenna could've fried it?
[19:49] <mfa298> harvy: what voltage range were you feeding into the TXD pin
[19:50] <harvy> TXD pin was from arduino pins, not sure but pretty low.
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[19:51] <mfa298> P3 does suggest that high voltage on TXD would also be OK but I don't think the modulation will change once TXD > 3V
[19:51] <mfa298> (high being up to 15v)
[19:52] <harvy> I think it can draw the full arduino load, so 5v on TXD.
[19:53] <harvy> I put the multimeter across some of the pins and I couldn't get any resistance. Is that expected?
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[20:07] <harvy> Not sure, what happened here.
[20:08] <Laurenceb__> whats the consensus on AA batteries, solder them for best reliability?
[20:08] <mattbrejza> they solder pretty easily
[20:08] <nigelvh> Yeah
[20:09] <lz1dev> harvy: i've had no problen running radiometrix modules on 5v
[20:09] <nigelvh> Sometimes I'll throw in a SPST switch so I don't drain them early.
[20:09] <lz1dev> on TXD
[20:09] <N2NXZ> Leo still here?
[20:10] <harvy> lz1dev: I'm was trying to run it on 12V.
[20:10] <N2NXZ> New info on his balloons nearing greenland
[20:10] <lz1dev> you won't be able to modulate over 3v
[20:11] <lz1dev> supply should be fine on 12v
[20:11] <harvy> what about the lack of resistance from the pins?
[20:11] <harvy> Should that be happening?
[20:11] <mikestir> probably
[20:11] <fsphil> no new info N2NXZ unless you've heard something?
[20:11] <N2NXZ> Hello Sven and Jim, I have heard the balloon here in Nuuk between 1738 and 1801 UTC. Made recordings (with audio) with my camera. Preparing dropbox where you can listen to the audio as soon it is uploaded.
[20:12] <fsphil> ooh
[20:12] <fsphil> they need igate software!
[20:12] <mikestir> harvy: electronics don't just behave like resistors
[20:12] <Upu> let us have a link when you have it Jim
[20:12] <lz1dev> excellent
[20:12] <fsphil> hey that's not far away
[20:12] <N2NXZ> Let me get that to you asap.Your email I have UPU
[20:13] <N2NXZ> Going to send his reply to you now.
[20:13] <Upu> LeoBodnar what longitude does the 70cms come back on ?
[20:14] <craag> 30W iirc
[20:14] <harvy> mikestir: I figure that if there is no resistance, something has gone horribly wrong (unless it's a transformer or something).
[20:14] <harvy> Hmmm any ideas on how I can debug this?
[20:14] <mikestir> by no resistance I take it you mean it reads as open circuit (very high resistance)?
[20:14] <N2NXZ> Anthony,I sent to gmail...there are more I need to read and send you still
[20:15] <harvy> mikestir: Yep open circuit.
[20:15] <mikestir> there are plenty of circuits that will read open circuit on a DVM
[20:16] <mfa298> I wouldn't be surprised if both working and dead NTX2's showed open circuit accross various pins
[20:16] <nigelvh> AC coupling will do that.
[20:16] <mfa298> if it was 0 ohms then that could indicate a problem (but even then could be normal)
[20:16] <mikestir> yes reading 0 ohms to ground would be more likely to indicate a problem
[20:17] <lz1dev> thats great if they heard them at nuuk
[20:17] <N2NXZ> I sent 4 emails but they all seemed to be the same...going to reply and thank him.
[20:17] <lz1dev> pretty much garantees b64 hitting uk/france
[20:17] <harvy> I had this issue before and it "corrected" itself with some messing around
[20:17] <mikestir> harvy: probably dodgy connections then
[20:17] <harvy> albeit without me apply high voltage bforehand
[20:18] <Upu> super N2NXZ
[20:18] <Upu> let me know when you get the recordings
[20:18] <N2NXZ> I am just now readin the email,I was too excited to do it first...ha ha
[20:19] <N2NXZ> Sent the same ones to you using your gmail,I do not have a dropbox account,have to see if my old one ois still good'
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[20:19] <Upu> I have drop box but all they need to do is send a link
[20:19] <lz1dev> you don't need an account to download them
[20:19] <Upu> would be amazing if it was a B
[20:20] <lz1dev> aligns with hysplit
[20:20] <mikestir> harvy: connect it up on 5V again with the EN pin connected to Vcc and measure the total supply current using your meter to check it seems reasonable (18mA according to the datasheet)
[20:21] <LeoBodnar> 30W
[20:21] <Upu> get listening Phil :)
[20:22] <fsphil> radio's been on 434.LEO standby for a few days now :)
[20:23] <N2NXZ> I can't share the folder before the upload process has been accomplished.
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[20:23] <Upu> sure N2NXZ
[20:23] <Upu> no rush
[20:23] <N2NXZ> That was the email quote,he says interenet very slow there
[20:23] <fsphil> $B_DK$<4 *:0F
[20:23] <fsphil> just noise...
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[20:24] <N2NXZ> Be back in a minute,going to prepare things for the link.Do you want me to play those audio files using my Igate?
[20:24] <DL1SGP> hi all
[20:24] <Upu> try it
[20:24] <fsphil> I just hope it doesn't drift too far outside my radio
[20:24] <Upu> where di dyou get that from fsphil ?
[20:24] <Upu> oh noise
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[20:24] <Upu> be you got excited for a mo
[20:24] <fsphil> my fldigi .. but 100% noise :)
[20:25] <N2NXZ> I used it today using web tuner succesfully...think it will work
[20:25] <fsphil> though stranger things have happened
[20:25] <N2NXZ> :)
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[20:30] <arko> hahaha
[20:30] <arko> mother nature is trolling fsphil
[20:31] <fsphil> the cosmic background radiation is a trickster
[20:31] <arko> :P
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[20:31] <fsphil> if you listen to it long enough it sounds like rtty
[20:32] <arko> yeah, thats the worst, debugging rtty
[20:32] <arko> then when you got to sleep you still hear it
[20:32] <arko> go*
[20:32] <arko> LeoBodnar: does 434 have replay?
[20:33] <fsphil> I have hills to the north so I hope it approaches from a more western direction
[20:33] <Upu> yeah I have hills
[20:33] <fsphil> I think that's what hysplit was saying
[20:33] <arko> :D
[20:33] <mattbrejza> we should get aprs + log until uk landfall?
[20:34] <fsphil> or 434mhz aprs?
[20:34] <mattbrejza> oh yea
[20:34] <arko> if it lands and is recovered, i expect to see it at conf in a glass jar
[20:34] <lz1dev> aprs with 10mw?
[20:34] <mattbrejza> 144 aprs is 10mW
[20:34] <fsphil> it's been 10mw all the way lz1dev
[20:34] <N2NXZ> It is 4:33 pm here,email was @ 4:12 pm...he said 45 minutes for his uploads
[20:34] <lz1dev> O_O
[20:34] <harvy> I'm getting some wierd readings.I'm gettign 30mA
[20:35] <mattbrejza> greenland has a subsea cable to it, i wonder why such shitty internet
[20:35] <lz1dev> well, at least they have internet
[20:35] <lz1dev> could be worse
[20:36] <mikestir> harvy: do you have the facility to adjust the supply voltage up and down about (by a couple of volts either way)?
[20:36] <mattbrejza> internet via usb sticks and fedex
[20:36] <arko> sending packets via pigion
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[20:36] <arko> pigeon?
[20:36] <arko> i cant spell
[20:36] <mikestir> harvy: about=a bit
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[20:36] <fsphil> it's ok, neither can the igeon
[20:36] <fsphil> or me for that
[20:36] <lz1dev> obligatory: http://en.wikipedia.org/wiki/IP_over_Avian_Carriers
[20:36] <arko> YESSSS
[20:37] <lz1dev> 6165731.1 ms echo
[20:37] <lz1dev> not bad
[20:37] <arko> lol
[20:37] <lz1dev> that's under 2 hours
[20:37] <arko> but imagine the bandwidth
[20:38] <arko> strap an SSD to a bird
[20:38] <lz1dev> imagine the packet being shot down by a sunday hunter
[20:38] <arko> haha
[20:38] <lz1dev> than the link is literally dead :(
[20:38] <lz1dev> then*
[20:38] <arko> packet loss: 100%
[20:38] <mattbrejza> 128GB microsd cards
[20:38] <lz1dev> packet loss: RIP
[20:38] <BullDoger> farmer in the middle attack
[20:38] <arko> 128GB upload under 2 hours is amazing
[20:38] <daveake> I've often seen a bird drop a packet
[20:38] <arko> haha, yeah they love sending packets to my car
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[20:40] <mikestir> that reminds me. seen this? http://icarusinitiative.org/about-icarus
[20:40] <S_Mark> servos in near space on a payload - necessary to de-grease or no?
[20:41] <simium> hi, I sent my payload's pcb to fab, meanwhile I created a github repository and uploaded the eagle files. Just wanted to say thanks to daveake, fsphil and arko which have been my main inspiration :) https://github.com/simium/Koroliov/tree/master/Hardware/Koroliov_SSDV
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[20:42] <mfa298> ah but impact will the weight of the SSD / uSD card hve on the bird
[20:42] <mattbrejza> uSD?
[20:42] <mattbrejza> weight?
[20:42] <mfa298> and what if it's an Afrian or European swallow
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[20:42] <mfa298> https://www.youtube.com/watch?v=y2R3FvS4xr4
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[20:43] <simium> mfa298 lol
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[20:46] Nick change: heathkid|2 -> heathkid
[20:46] <mfa298> well having missed the chance to quote rfc1149 I had to find something else relevant
[20:46] <lz1dev> they have a tracker that's smaller than a nail
[20:46] <lz1dev> impressive
[20:47] <harvy> mikestir: just using arduino voltage for now
[20:47] <maxmed> is there a way to include extra zeros in the sentance_id/count for my snprintf function so that it is always 6 digits, ie. 000465 rather than 465?
[20:47] <harvy> mikestir: so 5 or 3.3
[20:47] <lz1dev> maxmed: yes
[20:47] <mikestir> harvy: repeat the test on 3.3V and if you don't get the same current then it's probably bust
[20:48] <mikestir> because it has a linear regulator built in, so the current should remain constant
[20:48] <lz1dev> maxmed: %06d is what you need
[20:49] <maxmed> forgot to mention it is a unsigned long if that matters
[20:49] <harvy> mikestir: same current
[20:49] <lz1dev> maxmed: so you are using %f then
[20:50] <mikestir> ok that means the regulator is working then. 30mA is high though. are all other pins (apart from the grounds) unconnected?
[20:50] <maxmed> at the moment I'm using %lu
[20:51] <mikestir> maxmed: %06lu then
[20:51] <mikestir> why do you want 6 digits for sentence id though?
[20:51] <maxmed> ok, thank you, so I'm guessing if you wanted 8 digits it would be %08lu ?
[20:52] <lz1dev> exactly
[20:52] <lz1dev> if you want other char for padding replace 0
[20:52] <Upu> Just for the record
[20:53] <Upu> in case anyone accuses Leo of making this up, in advance this is the hysplit for the next 48 hours assuming its near Nuuk currently
[20:53] <Upu> http://ready.arl.noaa.gov/hypubout/172209_trj001.gif
[20:53] <harvy> mikestir: Yep just VCC, Tx, En and GND.
[20:53] <maxmed> mikestir: I need it to be a regular length so if i lose the gps lock I can take the last good datastring then "chop off" the begining and end to replace the count and checksum.
[20:53] <lz1dev> Upu: lol
[20:53] <F1VJQ> a Homing HAB!
[20:53] <ibanezmatt13> wow
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[20:54] <cm13g09> lol Upu
[20:54] <simium> Awesome
[20:54] <cm13g09> that is impressive
[20:54] <N2NXZ> Cool...ironically,a friend was skeptical about this balloon stuff,wait until he hears this
[20:54] <mikestir> maxmed: wouldn't it be easier to take a known good copy of the various gps values then just rebuild the whole string each time?
[20:54] <cm13g09> N2NXZ: Then they'll be even more skeptical :P
[20:55] <N2NXZ> ha ha ,,,all I did was send an email and get the reply
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[20:55] <N2NXZ> A shot in the dark that worked
[20:55] <Upu> thats what its all about
[20:56] <mattbrejza> youre the group secretary from now on ;)
[20:56] <lz1dev> :D
[20:56] <N2NXZ> Installed dropbox,how do I retrieve this data,do I need a link from him?
[20:56] <mikestir> harvy: what is tx connected to?
[20:56] <Upu> Sven and Jim HAB Hunters the new reality TV program from Discovery
[20:56] <lz1dev> N2NXZ: yep
[20:56] <Upu> I can see it now
[20:57] <lz1dev> you don't need to install dropbox to download files
[20:57] <Upu> you need a link Jim
[20:57] <N2NXZ> :)
[20:57] <lz1dev> or have an account for that matter
[20:57] <N2NXZ> I already ahd the account
[20:57] <amell> where is Nuuk? wow.
[20:57] <F1VJQ> SW Greenland amell
[20:57] <N2NXZ> waiting for it yet
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[20:58] <N2NXZ> He said the audio may not be good,not sure,hope it is usable
[20:58] <Upu> we can but give it a go
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[20:58] <lz1dev> camera audio
[20:58] <maxmed> mikestir: maybe that would be easier but it is hard to know when the data was last good, it seems the data gets corrupted due to poor signal faster than it can realize the data is bad. I did think about trying to read the sd card and transmit the last couple of values but couldnt figure out how to read the latest 3 lines from the sd card
[20:59] <amell> audio has not arrived yet?
[20:59] <Upu> not yet amell
[21:00] <amell> fsphil: have you got your 1000 element yagi sweeping back and forth for the Bs yet?
[21:00] <harvy> mikestir: Just a pin on the arduino
[21:00] <Upu> probably going to be our Southern Stations that get it first
[21:00] <mikestir> maxmed: after you populate the gps variables from tinygps, check fix age and number of satellites to see if they look valid, then if they are then copy them all into a copy set of variables
[21:00] <mfa298> maxmed: I'd probably do it by having a set of variables to keep the last known good values. Then when you get new data check if it's valid and if it is update the last known good values. Each time you transmit you can use the last known good values
[21:00] <mfa298> mikestir: snap
[21:01] <mikestir> the data isn't being corrupted because of failure to keep up. what you are probably seeing is tinygps getting confused because you stop to transmit your sentence and miss a load of NMEA data from the gps
[21:01] <amell> Im a little surprised it got to Nuuk already
[21:01] <Upu> faster winds
[21:02] <Upu> it was inline with the prediction
[21:02] <lz1dev> if they heard b63
[21:02] <lz1dev> there is hope
[21:02] <amell> there is always hope when there is a B in the air
[21:03] <mikestir> harvy: measure it with tx open circuit
[21:03] <amell> Have we given up on B-66 yet? Im surprised its still on the map.
[21:04] <amell> B-66 has exceeded all reasonable hysplit forecasts.
[21:04] <mikestir> harvy: also measure with the enable pin disconnected
[21:04] <Upu> no reason to take it off just yet
[21:05] <amell> Looks like B-63 should be audible in UK 6am onwards on thursday morning according to that Hysplit.
[21:06] <jcoxon> it'll hit aprs first is suspect
[21:06] <jcoxon> i*
[21:06] <amell> I thought aprs would be turned off before we get it.
[21:06] <Upu> yeah Ireland
[21:06] <Upu> its fine over Ireland
[21:06] <amell> ireland has aprs enabled?
[21:06] <jcoxon> nah it'll be on over the sea and with a good hundreds km range
[21:06] <Upu> No idea but its airborne ok there
[21:06] <Upu> not Northern Ireland
[21:06] <jcoxon> it'll scrap the UK aprs network (well at least its done that as they normall leave
[21:07] <amell> confirmed if geofence enables aprs over ireland?
[21:07] <Upu> I have no idea amell I didn't write the code
[21:07] <amell> Leo must be getting excited.
[21:07] <mikestir> it should be in range even before it makes land - I had some packets from a B on my igate while it was over the north sea
[21:08] <amell> My worry is that if he does succeed, he will stop launching, because mission accomplished.
[21:08] <F1VJQ> off southern France the APRS cut in after just a few km offshore
[21:08] <jcoxon> amell, we'll just challenge him to cross the equator
[21:08] <maxmed> mikestrir/mfa298 : I've written the code using my method so will test it and see how reliably it works, if it proves ineffective I'll create a dublicate set of "good values" but it introduces quite a few extra variables. but saying that my method involes creating a second substring variable which is quite large
[21:08] <amell> jcoxon: id like to see some pico camera payloads :)
[21:08] <arko> jcoxon: i think thats what B-66 is busy doing
[21:08] <mikestir> or go around the other way
[21:09] <jcoxon> exactly
[21:09] <jcoxon> lots of options
[21:09] <arko> hehe
[21:09] <jcoxon> mechanical payload
[21:09] <jcoxon> no electronics
[21:09] <jcoxon> loads of challenges
[21:09] <harvy> mikestir: boucing between 20 and 30mA
[21:09] <mikestir> bouncing? under what circumstances?
[21:10] <arko> jcoxon: hahaha
[21:10] <arko> 100% analog
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[21:11] <harvy> mikestir: Just random
[21:11] <harvy> mikestir: without enable pin its around 23mA
[21:12] <mikestir> sounds bust then "The module current in power-down mode (Vcc present, EN pin low) is less than 3uA"
[21:12] <mikestir> "
[21:12] <mikestir> actually connect EN to ground just to make sure
[21:13] <fsphil> $B80 .. I'm receiving payloads from the FUTURE
[21:13] <arko> hahaha
[21:13] <lz1dev> fsphil: are you wearing your tinfoil hat?
[21:13] <arko> damn, leo out did himself this time
[21:13] <fsphil> knew I forgot something
[21:13] <lz1dev> they might be coming to get you, if you aren't
[21:13] <harvy> mikestir: A between Vcc and ground is 23mA
[21:14] <mikestir> fsphil: or you have some ducting to the place where the Bs grow
[21:14] <harvy> mikestir: with En to GND
[21:15] <mikestir> harvy: between vcc and ground?
[21:15] <harvy> mikestir: yeah I've been measuring between those.
[21:16] <mikestir> ahh right. you're shorting out your arduino then
[21:16] <mikestir> you measure current in series
[21:16] <mikestir> disconnect vcc and put the meter in line
[21:16] <amell> lol
[21:17] <amell> sorry, i shouldnt laugh :(
[21:17] <F1VJQ> Depending on which B-** has been heard there should be another along 8 hours later!
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[21:26] <harvy> mikestir: Ahh yes I realise my epic mistake.
[21:27] <mikestir> with the current measurement or have you solved the problem?
[21:27] <harvy> mikestir: current measurement. Alas I get nothing now.
[21:28] <mikestir> well you should get (next to) nothing if you have enable low or disconnected
[21:28] <mikestir> then repeat with EN connected to vcc
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[21:31] <harvy> mikestir: Nada
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[21:32] <S_Mark> servos in near space on a payload - necessary to de-grease or no?
[21:33] <arko> probably not
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[21:33] <fsphil> the grease might freeze though
[21:33] <arko> you could de-grease then apply vacuum grease
[21:33] <Upu> I know people have degreased
[21:33] <fsphil> our first flight the camera seemed to freeze up
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[21:34] <arko> couldn't hurt, as you dont really need the grease for a short use period
[21:34] <fsphil> worked fine once it warmed up
[21:34] <arko> oh neat
[21:34] <fsphil> never confirmed it
[21:35] <fsphil> and my canon didn't have the same problem
[21:35] <arko> sounds perfectly plausable
[21:35] <arko> or makes it viscous enough to stall
[21:35] <fsphil> the canon may have been able to keep itself warm - I had it taking pictures every 10 seconds
[21:35] <Upu> Rob removed the grease
[21:35] <fsphil> the other one was every minute
[21:35] <Upu> Canon's run hot
[21:35] <Upu> s/hot/warm
[21:35] <S_Mark> ok
[21:36] <arko> is this a hobby motor?
[21:36] <S_Mark> cool I'll remove the grease to be sure
[21:37] <S_Mark> futuba s3003
[21:37] <Upu> Random link : http://www2.dupont.com/Consumer_Lubricants/en_US/products/white_lithium_grease.html but down to -17'C
[21:37] <arko> ah
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[21:38] <arko> Operating Temperature Range: -20 to +60 Degree C
[21:38] <arko> fairly robust it seems
[21:38] <arko> http://www.servocity.com/html/s3003_servo_standard.html#.U9gUQGMvBHc
[21:38] <arko> based on this
[21:38] <S_Mark> yeah thats the one
[21:39] <S_Mark> -20
[21:39] <S_Mark> maybe i'l risk it then
[21:39] <arko> i take back my "probably not" actually
[21:39] <S_Mark> will be inside payload
[21:39] <arko> fsphil and upu made some good points
[21:39] <Upu> are you operating it continually ?
[21:39] <S_Mark> no just once
[21:39] <arko> the grease is only necessary for long term
[21:39] <Upu> whats it doing ?
[21:39] <S_Mark> one 180 turn
[21:39] <S_Mark> thats it
[21:40] <harvy> mikestir: I'm guessing it's screwed then?
[21:40] <S_Mark> at 30,000km
[21:40] <S_Mark> ish
[21:40] <Upu> could you just step it forwards and backwards a small amount every 20s or so to keep it warm ?
[21:40] <S_Mark> hmm good idea
[21:40] <daveake> I'd remove the grease unless it's inside a nice warm (e.g. cameras, Pi) payload
[21:41] <mikestir> harvy: doesn't sound good. double check all your connections though, especially if you're using a breadboard
[21:41] <S_Mark> yeah cool I'd rather not have a block of ice grease when it comes to its big turn
[21:42] <harvy> mikestir: I've been tempted to veraboard it, so I may do that just check connections are ok.
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[21:42] <mikestir> that's probably worthwhile
[21:43] <amell> Any sign of that B recording yet?
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[21:44] <harvy> Ok I'll let you know how it goes tomorrow.
[21:44] <N2NXZ> Nothing yet
[21:44] <N2NXZ> waiting for email reply
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[21:45] <N2NXZ> Sven is here in this chat?
[21:45] <N2NXZ> Or did he also eamil Peter about the balloons?
[21:45] Action: Upu points at DL7AD
[21:46] <F1VJQ> N2NXZ there may be two B-** flights 8 hours apart.... so another may be passing soon
[21:46] <N2NXZ> I will let Peter know when I get his reply
[21:46] <N2NXZ> He must have very slow uploading capabilities
[21:47] <N2NXZ> I just hope those were balloons and not local APRS of sorts
[21:48] <F1VJQ> N2NXZ local APRS would be good even if only to show there is APRS nearby!
[21:48] <N2NXZ> Ironic to have them pass so close to my QTH,but not enough to gate
[21:49] <DL7AD> N2NXZ: yes mobile
[21:49] <DL7AD> almost home (in 10min)
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[21:50] <N2NXZ> I have a big lake 1 mile North to cross :)...boat needed..ha ha
[21:50] <F1VJQ> N2NXZ yes, a real pity
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[21:56] <Upu> if it turns up N2NXZ pm the link to fsphil or LeoBodnar I'm off night all
[21:57] <fsphil> g'nite!
[21:57] <OZ1SKY_Brian> night upu
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[21:58] <N2NXZ> Ok,I can also try to run the audio through Igate too.Here awhile...no worry.
[21:58] <N2NXZ> GN
[21:58] <DL7AD> evening. got home
[21:58] <DL7AD> @N2NXZ
[21:59] <OZ1SKY_Brian> evening sven
[21:59] <DL7AD> hi brian
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[22:00] <LeoBodnar> gn
[22:00] <OZ1SKY_Brian> tropo openings can be good and bad. Someone is playing the harmonica on a faint repeater...
[22:00] <OZ1SKY_Brian> gn Leo
[22:01] <Laurenceb__> http://ready.arl.noaa.gov/hypubout/173213_trj001.gif
[22:01] <Laurenceb__> back to UK
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[22:05] <N2NXZ> Still here...trying to multitask
[22:09] <mattbrejza> any stats for b63/b64? like how many different people have heard it during its travels?
[22:10] <F1VJQ> We will know you succeed when we see B-63 or B-64 jump to Greenland!
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[22:13] <SpeedEvil> mattbrejza: Are APRS node operators people?
[22:13] <mattbrejza> well i was gonna say yes
[22:14] <mattbrejza> didnt think this would turn philosophical
[22:14] <Laurenceb__> in Quebec there were over ten igates with a single callsign
[22:14] <Laurenceb__> - with extensions 1,2,3 etc
[22:15] <LeoBodnar> CHANGEME-0 ?
[22:16] <Laurenceb__> no lol
[22:16] Action: Laurenceb__ rage at BBB
[22:17] <Laurenceb__> the PMIC setup is so stupid
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[22:21] <jcoxon> N2NXZ, i'm pretty good at extracting data from audio files
[22:21] <jcoxon> if oyu need help
[22:21] <N2NXZ> He did not send the link yet...lol
[22:21] <F1VJQ> Oh bother!!
[22:22] <N2NXZ> I am patiently waiting for the reply and check my emails every 1 minute.
[22:22] <jcoxon> haha
[22:22] <mattbrejza> how sure are we that this is a B-6*?
[22:23] <N2NXZ> I have my audio sttings ready and Igate up and running...actually,has been awhile,all I need is the audio and hope it is good enough to decode
[22:23] <jcoxon> okay
[22:23] <N2NXZ> Lots of Canadian signals piling up,neam does work
[22:24] <N2NXZ> beam
[22:24] <jcoxon> good luck
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[22:25] <amell> worth chasing him on the link??
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[22:33] <N2NXZ> Just nopw getting info...be back shortly,also,earlier info you guys already probably seen http://www.reddit.com/r/amateurradio/comments/2bml0b/another_m0xer_balloon_crossed_the_pacific/
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[23:00] <N2NXZ> Audio too poor to decode,DL7AD is going to get it to Leo
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[23:02] <LeoBodnar> i can't decode it
[23:02] <fsphil> http://en.wikipedia.org/wiki/Moose_Factory -- where baby Moose come from
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[23:02] <fsphil> spotted near where the B's are on spacenear
[23:07] <Laurenceb__> wutwut
[23:07] <Laurenceb__> B maybe heard?
[23:08] Action: Laurenceb__ confused by crollback
[23:12] <fsphil> someone claims to have heard it
[23:12] <fsphil> but can't decode it
[23:12] <fsphil> so I'm not sure how they know it's a B
[23:13] <fsphil> but more importantly there's a town called Moose Factory in Canada. Which is just a great name.
[23:13] <N2NXZ> I am still working on the audio,using another program or 2 in hope one will work
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[23:15] <LeoBodnar> the level is massive and the signal is clipped
[23:20] <arko> hey!
[23:20] <LeoBodnar> another video is better
[23:20] <arko> it showed up
[23:20] <arko> on aprs
[23:20] <LeoBodnar> must be fake!
[23:20] <arko> lol
[23:21] <arko> dude awesome!
[23:21] <arko> its alive
[23:21] <Laurenceb__> spacenear is killing firefox
[23:21] <Laurenceb__> wtf is happening
[23:21] <LeoBodnar> $$B-64,1514,175726,140729,62.8692,-54.3268,12543,13,7,4.23,0.66*F62A
[23:22] <arko> nice!
[23:22] <Laurenceb__> ag Greenland
[23:22] <LeoBodnar> need prediction
[23:24] <fsphil> Nuuk is also a great name
[23:24] <craag> still no major altitude loss - incredible
[23:24] <fsphil> no chance of it making it here tonight
[23:24] Action: fsphil stands down
[23:25] <fsphil> that said, hemisphere projection makes everything look further apart up there
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[23:31] <DL7AD> okay
[23:32] <arko> http://ready.arl.noaa.gov/hypubout/174580_trj001.gif
[23:32] <arko> LeoBodnar: ^ if you havent already
[23:33] SebastianFlyte (~sebf@pool-74-96-234-172.washdc.fios.verizon.net) joined #highaltitude.
[23:33] <fsphil> nearly avoiding me. blast this B repeller :)
[23:33] <arko> turn it off fsphil!
[23:33] <fsphil> neatly*
[23:34] <fsphil> there's still hope for the other one
[23:34] <F1VJQ> Timed earlier today but just appeared? Is that back data from N2NXZ?
[23:35] <F1VJQ> B-64 was due there first ...
[23:35] <craag> It was an audio recording emailed to and decoded by Leo
[23:35] <LeoBodnar> i believe it is from OX3XR decoded by DL7AD
[23:35] <craag> ah
[23:36] <craag> Yeah B-64 might have skipped over unheard..
[23:36] <DL7AD> yeah decoded first by me but N2NXZ was in the same conversation
[23:36] <DL7AD> l
[23:36] <LeoBodnar> this is B-64
[23:36] <craag> heh so it is
[23:36] <DL7AD> LeoBodnar was putting it to snus
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[23:36] Action: craag needs sleep, gn!
[23:37] <F1VJQ> craag GN ...
[23:37] <LeoBodnar> gn
[23:39] <F1VJQ> B-63 will be in that area about now based on the gap between them losing APRS in Newfoundland
[23:39] <F1VJQ> wonders if there is any APRS in Greenland
[23:40] <LeoBodnar> there should be now
[23:41] <F1VJQ> has OX3XR got igate?
[23:41] <F1VJQ> or maybe others
[23:41] <amell> Holy fuck. Where did that data point come from
[23:42] <amell> Ah. [APRS64 via WIDE2-1,qAR,DL7AD]
[23:42] <F1VJQ> amell an audio recording earlier
[23:42] <amell> thought you couldnt decode the audio
[23:42] <F1VJQ> decoded by DL7AD
[23:43] <amell> 54 degrees west. nice!
[23:44] <LeoBodnar> 2nd video
[23:44] <amell> arko: something wrong with your hysplit? shows a fast descent to 10Km?
[23:44] <arko> yeah i dont understand that
[23:44] <amell> arko: needs to be AMSL too.
[23:44] <LeoBodnar> it's AGL plot
[23:44] <arko> hmm
[23:44] <arko> that weird
[23:44] <arko> i thought i did select AMSL
[23:45] <amell> so theres a 2km high mountain at the bottom of greenland.
[23:45] <F1VJQ> LeoBodnar I wonder what listening stations there are for ships? AIS
[23:45] <LeoBodnar> it's correct arko you just plotted agl
[23:45] <arko> oh!
[23:45] <arko> derp
[23:45] <arko> :)
[23:45] <LeoBodnar> well it's fine
[23:45] <arko> man, greenland is so beautiful to fly over
[23:46] <arko> truely one of the most amazing things i've ever seen
[23:46] <arko> or really northern canada
[23:46] <arko> its like another world
[23:46] <F1VJQ> no green fields full of corn?
[23:46] <F1VJQ> or sunflowers!!
[23:46] <arko> lots of ice :)
[23:47] <arko> get to see it again in 2 weeks :D
[23:47] <F1VJQ> yeah...all that cold would drive me bonkers
[23:47] <adamgreig> really northern canada is crazy
[23:47] <amell> thursday evening- midnight then for B-64
[23:47] <arko> hehe, i bet
[23:47] <adamgreig> the crazy terrain in nunavut and nwt
[23:47] <F1VJQ> soon as that amell?
[23:47] <adamgreig> i was up in dawson city yukon last year and that was cool enough
[23:48] <DL7AD> http://en.wikipedia.org/wiki/Around_the_World_in_Eighty_Days
[23:48] <amell> It makes landfall in france at 0000 1st August according to that last hysplit.
[23:48] <amell> Im guessing it will come into range earlier.
[23:50] <amell> Im also guessing that it wont be an official circumnavigation until it passes the longitude of silverstone.
[23:50] <LeoBodnar> haha "Although a journey by balloon has become one of the images most strongly associated with the story, this iconic symbol was never deployed by Verne  the idea is briefly brought up in chapter 32, but dismissed, it "would have been highly risky and, in any case, impossible."
[23:51] <amell> around the world in 22 days?
[23:51] <LeoBodnar> 18 so far
[23:51] <F1VJQ> amell I'm not using mobile vsn.. have you a link?
[23:51] <amell> F1VJQ: to what?
[23:52] <F1VJQ> the hyslpit
[23:52] <F1VJQ> give or take spelling
[23:53] <amell> http://ready.arl.noaa.gov/hypubout/174580_trj001.gif
[23:53] <F1VJQ> kms travelled, time aloft, must be new records
[23:53] <F1VJQ> thanks
[23:53] <amell> F1VJQ: That was an arkoed URL btw.
[23:54] <F1VJQ> a bit further south than thought earlier
[23:54] <LeoBodnar> things might change yet
[23:54] <amell> anybody who can record audio on the east coast of greenland?
[23:55] <LeoBodnar> arko: that datapoint was 1800 UTC
[23:55] <LeoBodnar> not 2300
[23:55] <F1VJQ> if it misses UK it will be a shame, but I may get to hear it over Brittany
[23:55] <arko> hmm
[23:55] <amell> ah. new hysplit required
[23:55] <arko> the graph starts around 23 no?
[23:56] <arko> 2300*
[23:56] <LeoBodnar> 17:57:26,14/07/29, 62.8692,-54.3268, 12543 m
[23:56] <arko> i selected the 18 UTC wind data
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[23:56] <LeoBodnar> the position was 17:57 UTC
[23:56] <amell> yes, but the start point is 6pm
[23:57] <arko> ohhh
[23:57] <amell> hmm, found OE1FPC on the east coast of greenland.
[23:57] <LeoBodnar> good night gentlemen
[23:57] <arko> rerunning it
[23:57] <arko> night dude
[23:58] <F1VJQ> OE1is Austria
[23:58] <F1VJQ> OX is Greenland
[23:59] <amell> well, there is a station on the east coast of greenland with that callsign
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[23:59] <amell> http://aprs.fi/#!mt=roadmap&z=6&call=a%2FOE1FPC&timerange=86400&tail=3600
[23:59] <arko> http://ready.arl.noaa.gov/hypubout/174969_trj001.gif
[23:59] <arko> there we go
[23:59] <F1VJQ> must have entered lat/long incorrectly
[00:00] --- Wed Jul 30 2014