highaltitude.log.20160504

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[04:19] <SpacenearUS> New vehicle on the map: 03cn8dn_chase - 12http://tracker.habhub.org/#!qm=All&q=cn8dn_chase
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[07:46] <SpacenearUS> New position from 03W7QO-9 after 0312 hours silence - 12http://tracker.habhub.org/#!qm=All&q=W7QO-9
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[07:49] <redmi> Good morning, I want to thank you everyone who helped us to fly our balloon
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[08:15] <redmi> So I want to thank you all of you that kindly answered my questions: fsphil, mfa298, erromde, RealBorg, Vaizki, AndyEsser, Darkside, AndyEsser, gonzo__, kokey, nick_, etc.
[08:16] <redmi> With special mention to daveake which was very very helpful here but also his complete guide was amazing
[08:17] <redmi> I hope to not forget anyone, if it is so please let me thank you :)
[08:18] <redmi> Regarding the flight: I had a bad windy day and I didn't fill the balloon enough and it ended up in a train high tension line. Firemen, police, train workers, the complete show :(
[08:19] <redmi> Anyway, they gave us the balloon and I could fill it up with all the helium I had and the second time it was very smooth
[08:20] <gonzo_> sounds serious
[08:20] <redmi> it was
[08:20] <gonzo_> was that yesterdays launch that only went to 3000mtrs?
[08:21] <redmi> Actually it didn't went over 700 m
[08:21] <redmi> (ground)
[08:21] <redmi> the second time it went up to 30000 m
[08:21] <gonzo_> ok, not the oon re-fill/re-launch?
[08:21] <gonzo_> ah, ok
[08:21] <gonzo_> if you re-used the balloon after all that, it was probably damaged
[08:22] <redmi> So I had beautiful pictures of all the firemen, and train workers :P
[08:22] <daveake> Sounds like a great advert for my guide :p :/
[08:22] <redmi> Well, it was just fine, because it reached the 30000 with no problem
[08:22] <redmi> at 5.5 m/s
[08:22] <gonzo_> how far from the launch site was the line?
[08:22] <redmi> 1 km :(, I know it was very stupid
[08:23] <gonzo_> does sound like a damaged balloon then. You should have used a fresh one
[08:23] <redmi> why?
[08:23] <redmi> The second time it reached the desired altitude
[08:23] <redmi> 30 km
[08:23] <gonzo_> hmmm, reasonably far away from the line then
[08:24] <gonzo_> sorry, misread. I thought yesterday it only got to 3000m
[08:24] <redmi> of course, the second time we searched for a place far from electric lines and train lines and highways
[08:25] <gonzo_> 1km should have been plenty far enough
[08:25] <redmi> What I want to say is that I was VERY lucky of getting the balloon stuck in the train line, because the trains can just slow the pace
[08:25] <gonzo_> but measuring the fill/lift when it's windy is difficult
[08:25] <redmi> The next thing in its way was a highway
[08:25] <redmi> this could be serious
[08:26] <redmi> I want to tell you this here just to aware future launchs of this possibility
[08:26] <redmi> of course, the neck lift technique was not fine under wind
[08:27] <redmi> Actually it was a wind of 10km/h with high peaks of 35 km/h
[08:29] <redmi> daveake: now I'm waiting for bills of the train and firemen, but once that all is cleared I can send to you a picture with all the mess so you may put it in your guide as a warning
[08:30] <daveake> er, thanks :)
[08:30] <daveake> Though if I add photos of every mess-up, it would double in size
[08:30] <redmi> Ok then :)
[08:31] <redmi> Anyway, the proposal ring went up and was recovered so it is a success somehow :P
[08:31] <redmi> Once more, thank you for your help
[08:31] <gonzo_> I wasn't going to mention getting billed for it
[08:32] <gonzo_> I know people have been charged for removing payloads from power cables
[08:32] <gonzo_> though it';s a bit of a lottery
[08:32] <redmi> Probably an insurance for the flight is a good idea
[08:33] <gonzo_> can of worms there. Lots of effort has been put into trying to get insurance. But little su=ccess,
[08:34] <gonzo_> unless you have some existing cover, eg, film/program making
[08:35] <redmi> Anyway, now I know that I can run 1km in 5 minutes
[08:35] <redmi> xD
[08:42] <SpacenearUS> New vehicle on the map: 03YL3GBC-9_chase - 12http://tracker.habhub.org/#!qm=All&q=YL3GBC-9_chase
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[09:12] <R34lB0rg> https://2016.spaceappschallenge.org/challenges/tech/jet-set-mars/projects/rise-like-a-balloon-fly-like-an-airplane-orbit-like-a-satellite
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[10:01] <pde25> Hello! I'm part of a project hoping to launch a hab in Scotland. Contacted the CAA and local council, but wondering if we also need to contact MOD?
[10:05] <mfa298> CAA and the landowner are the usual people to talk to
[10:14] <fsphil> yeah, unless you're launching from MOD land
[10:15] <mfa298> I can imagine if you're launching near a base it might be wise to inform them nearer the time, although the CAA should tell you if you need to.
[10:15] <fsphil> the local council will probably have no idea what you're talking about :)
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[10:17] <pde25> Not launching from MOD land so phew, should be good then. Thank you!
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[10:25] <gonzo_> getting CAA permission is the long winded job.
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[10:26] <gonzo_> they are not very chatty. Tend to give permission/NOTAM only a day or so before
[10:26] <gonzo_> hmmm, he's gone
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[10:35] <daveake> yeah was about to mention not landing on MOD property either
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[10:47] <R34lB0rg> MOD is?
[10:47] <murb> R34lB0rg: the military.
[10:47] <gonzo_> Ministry of Decence
[10:48] <gonzo_> defence
[10:48] <murb> which is why they only have defenive weapons like trident missle systems :) (in scotland)
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[10:48] <R34lB0rg> so worse the RAF
[10:48] <murb> R34lB0rg: atleast they don't have nukes anymore.
[10:50] <gonzo_> A ministry of Decence could be a good idea though
[10:52] <Ian__> R34lB0rg The MoD (previously known as, "The War Department") is the umbrella organisation that controls the Army, Royal Navy and Royal Air Force. It consists of Civil Servants and serving officers etc. Their main job is to make it difficult for contractors to get paid on time.
[10:53] <R34lB0rg> ministry of decadence
[10:53] <Ian__> A function which I am advised they do rather well. Affectionately referred to as, "The Monastry" :)
[10:54] <gonzo_> a base ten ministry?
[10:54] <R34lB0rg> btw: made 2nd place at space apps challenge vienna with http://www.riseflyorbit.org/
[10:54] <Ian__> No decadence there old chum, they take their work at overspending and over-running, very seriously.
[10:55] <mfa298> I'm sure they're also talented at making other things difficult as well as just paying contractors.
[10:55] <gonzo_> it's a transferable skill, between any .gov dept
[10:56] <SpacenearUS> New vehicle on the map: 03CALLSIGN123_chase - 12http://tracker.habhub.org/#!qm=All&q=CALLSIGN123_chase
[10:57] <Ian__> A National Institution. They look up to NAAFI for inspiration - No Ambiton and F All Interest . . .
[10:57] <Ian__> *Ambition
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[11:24] <SpacenearUS> New vehicle on the map: 03T-MIL_chase - 12http://tracker.habhub.org/#!qm=All&q=T-MIL_chase
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[12:42] <SpacenearUS> New position from 03N1YIP-11 after 033 days silence - 12http://tracker.habhub.org/#!qm=All&q=N1YIP-11
[12:43] <SpacenearUS> New position from 03KB1YOF-11 after 033 days silence - 12http://tracker.habhub.org/#!qm=All&q=KB1YOF-11
[12:44] <SpacenearUS> New vehicle on the map: 03chennii_chase - 12http://tracker.habhub.org/#!qm=All&q=chennii_chase
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[13:40] <SpacenearUS> New vehicle on the map: 03KE0GIQ-11 - 12http://tracker.habhub.org/#!qm=All&q=KE0GIQ-11
[13:51] <SpacenearUS> New vehicle on the map: 03SQ1OHF_chase - 12http://tracker.habhub.org/#!qm=All&q=SQ1OHF_chase
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[14:11] <SpacenearUS> New vehicle on the map: 03AGGIE-2 - 12http://tracker.habhub.org/#!qm=All&q=AGGIE-2
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[14:33] <matt|home> morn. does anyone here do rocketry as a hobby ?
[14:34] <matt|home> or like RC coptors or anything like that
[14:36] <Geoff-G8DHE-M> Yes a few do, but not normally about at this time of day!
[14:37] <fsphil> I've crashed a few RC copters, and did some water rocketry. not sure they count :)
[14:38] <Geoff-G8DHE-M> edmoore rockets seem to have a lot of water about when he is testing as well ;-)
[14:38] <matt|home> im trying to start a business essentially, i wanted to get into robotics and rocketry stuff like that
[14:39] <matt|home> but i dont know a lot about it. is there room for any kind of market in the home made stuff , or not really
[14:39] <Geoff-G8DHE-M> there are several proffesionals in here on the subject ;-)
[14:39] <matt|home> i know people are making their own drones now
[14:40] <matt|home> but what kind of parts and equipment do people need to continously buy that there aren't a lot of providers out there for?
[14:40] <Geoff-G8DHE-M> If you have to ask that then its time to do a LOT more research!!!
[14:40] <fsphil> it's perhaps not a great idea to be selling things you don't understand. though that doesn't seem to stop people
[14:40] <matt|home> like for example, i couldn't just mix up different rocket fuel types and sell them for cheaper than people can make themselves right?
[14:41] <matt|home> fsphil : eh i plan on making it my major when i can afford to go back to college, but right now i want to focus on making money
[14:42] <gonzo_> didn't someone mention that a gas supplier rep saw that they used H2 and O2 a lot. And pointed out that they could supply mixed gases
[14:43] <matt|home> i dont really have the facilities for selling gas..
[14:43] <Geoff-G8DHE-M> probably sell matches as well
[14:45] <gonzo_> product grouping. Xmas dinners for one, and paracetamol/whiskey.
[14:45] <daveake> "im trying to start a business essentially" ... "but i dont know a lot about it" ... " just mix up different rocket fuel types". I hope you see a possible stumbling block to your future success, not to mention safety, here ??
[14:46] Action: Laurenceb_ has been simulating payload trains
[14:46] <Laurenceb_> http://i.imgur.com/kPhraMT.png
[14:46] <Laurenceb_> seems like there is an optimum payload train length of around 20m for most stable flight
[14:46] <daveake> Laurenceb_: Done anything on having multiple payloads on the train ?
[14:47] <Laurenceb_> nooo
[14:47] <daveake> 'cos that would be interesting
[14:47] <Laurenceb_> this is quite complex enough, took about an hour on xeon workstation
[14:47] <daveake> :)
[14:48] <Laurenceb_> seems like very long trains stay below 6 degrees, and v short ones are bad, but inbetween in actually best
[14:50] <richardeoin> what causes the train to be unstable in the first place Laurenceb_ ?
[14:50] <richardeoin> is it the difference in wind vectors between the top and bottom?
[14:50] <Laurenceb_> turbulence, I'm simulating a turbulent wind field
[14:50] <Laurenceb_> using data from 33km altitude
[14:50] <Laurenceb_> https://scontent-arn2-1.xx.fbcdn.net/t31.0-8/13147860_1301293656550676_5855547840045191758_o.jpg
[14:51] <richardeoin> ok
[14:51] <richardeoin> I guess the turbulence levels vary quite a bit with altitude
[14:51] <Laurenceb_> yes, at ~12km it will be much worse
[14:52] <Laurenceb_> with is with a Howyee 2000gram, and 450gram payload with 0.01m^2 side area, modelled as a square box
[14:53] <SpacenearUS> New vehicle on the map: 03FANHAB1 - 12http://tracker.habhub.org/#!qm=All&q=FANHAB1
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[15:47] <SpacenearUS> New vehicle on the map: 03NM5SS-11 - 12http://tracker.habhub.org/#!qm=All&q=NM5SS-11
[15:52] <SpacenearUS> New vehicle on the map: 03RUSSELL - 12http://tracker.habhub.org/#!qm=All&q=RUSSELL
[15:56] <edmoore> matt|home: hi
[15:57] <matt|home> o\
[15:57] <edmoore> i saw i got mentioned above
[15:57] <edmoore> i work with rockets professionally
[15:57] <edmoore> well, rocket engines
[15:58] <matt|home> edmoore : im going back to school in a few months, maybe sooner. was planning on making aerospace engineering my major, and was specifically interested in rocketry and stuff like guidance systems
[15:58] <matt|home> i've made rocket candy fuel, but that's about it in terms of hobbyist level experience :P i dont have much money
[15:58] <edmoore> it's fascinating and you will probably enjoy it a lot
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[15:59] <edmoore> guidance systems are probably a different discipline to engines, for example, but really any engineering discpline you study will probably have applications somewhere on a rocket
[16:00] <matt|home> yeah. it's complicated :P im not the greatest in math, but i like it for some reason
[16:00] <edmoore> there is plenty of maths whatever you do:)
[16:02] <edmoore> my academic background was more in signal processing and control theory (so that'd be guidance as applied to rocketry) but now I work on engines, and had to learn/relearn a lot of chemistry and thermodynamics and other things i didn't think i'd need again
[16:02] <edmoore> but aslong as you are flexible and ejoy learning then you'll be fine with whatever you do
[16:02] <matt|home> awesome. i like all science fields generally
[16:03] <matt|home> i dont think i'll be able to take anything super complex, still haven't got my associates yet, but .. actually ya know what, fuck it you just inspired me to register for classes right now
[16:03] <edmoore> as for making your own solid rocket propellants, it's not something i know about (our stuff is liquid propellants) but it's illegal in the UK without a license as it's considered explosives manufacture
[16:03] <edmoore> but you sound american so it might be fine there
[16:03] <matt|home> heh. i live in US, it's okay to make your own and the liquid version is more heavily regulated, but also legal
[16:04] <matt|home> we just need licensing to fly and set shit on fire
[16:04] <edmoore> liquids are fine here i presume because they're less useful for nefarious purposes
[16:04] <edmoore> you have some excellent wide-open spaces there to fly stuff
[16:04] <edmoore> very jealous
[16:04] <edmoore> where abouts are you in the US?
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[16:05] <Laurenceb_> rocketry and ballooning can of course be combined...
[16:06] <matt|home> edmoore : florida
[16:06] <matt|home> south florida specifically
[16:06] <edmoore> yes but it's fair to say that it's somewhat harder to combine them!
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[16:07] <edmoore> so i've met a few people involved with this organisation which seems to support the more experimental end (diy propellants etc) of hobby rocketry http://www.rocketmavericks.com/
[16:07] <edmoore> in the US, that is
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[16:08] <edmoore> and i think lots of schools have a student rocket program which seems popular.
[16:08] <jakeio> Can I ask what's the difference between the Kaymont and Hwoyee balloons?
[16:08] <edmoore> manufacturer
[16:09] <jakeio> Well, yes, however, they give completely different predictions on the burst calculator.
[16:09] <edmoore> but to be less obvious, for a given mass of balloon they probably have slightly different burst alititudes
[16:09] <edmoore> the neck diameter is different also on the different types
[16:09] <edmoore> very roughly, i think most people would say the howyees are higher performance
[16:09] <adamgreig> hmmmm
[16:09] <edmoore> certainly almost all the altitude records were flown under howyees
[16:10] <jakeio> http://predict.habhub.org/#!/uuid=5cb217d30f29df2e87575d63c6813687585adb0c
[16:10] <jakeio> vs
[16:10] <jakeio> http://predict.habhub.org/#!/uuid=a578f703080c07fb54c0e1bb485668dd3190e698
[16:10] <adamgreig> I feel like they are more variable in their performance
[16:10] <edmoore> specifically the 1600g hwoyee
[16:10] <jakeio> Just changing balloon manufacturer.
[16:10] <adamgreig> but I don't see why some should be notably higher performance than an equivalent mass of latex from totex, so shrug
[16:11] <edmoore> not with everything else being equal but there is probably some variability in the type of latex and manufactur conditions
[16:11] <adamgreig> yea
[16:11] <adamgreig> the totex ones seem a lot more self similar
[16:11] <edmoore> yes
[16:11] <edmoore> though we found the 3kg totex ones had quite high variability
[16:11] <adamgreig> bit niche though
[16:11] <edmoore> but that might follow from being made in much lower qty
[16:12] <jakeio> Did you look at those two predictions? One ends in the netherlands, the other in the midlands!
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[16:12] <jakeio> Nothing but changing manufacturer.
[16:12] <adamgreig> uhm
[16:12] <edmoore> er
[16:12] <edmoore> look at the ascent rate
[16:13] <adamgreig> the ascent rate is changed between 2.91 and 0.33
[16:13] <adamgreig> which is a bit extreme
[16:13] <jakeio> Ah, OK.
[16:13] <adamgreig> I appreciate maybe you just used the calculator for that
[16:13] <adamgreig> but perhaps something else changed in the process or you're right on the edge of something
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[16:14] <jakeio> Well, I changed the masses down to exactly the same figure (one was 1500 and the other 1390 by mistake) and the Kaymont became normal!
[16:14] <jakeio> Doesn't matter, my payload is about 800g.
[16:15] <matt|home> oh. right. i remember why i didn't finish college
[16:15] <matt|home> apparently 3 courses costs 2,800 dollars -_-
[16:15] <edmoore> i have never really understood exactly how higher education in the USA works
[16:16] <edmoore> whether you just pay house-deposit-prices and hope for the best for a 4 year course, or whether you can pick and choose a few modules here and there to gradually accrue enough points for a degree or what
[16:17] <matt|home> edmoore : want me to give you a very brief run down or not really :P
[16:17] <edmoore> nah it's ok. just, i sympathise
[16:17] <matt|home> ty
[16:17] <jakeio> edmoore, may I ask, what size parachute is recommended for about 800g-1000g payloads? UKHAS website suggests 24".
[16:17] <edmoore> i think i guy we have here from cal managed to work alongside his studies and pay for it all, though i don't think it was easy
[16:18] <edmoore> jakeio: do you have 15 minutes spare to watch a video?
[16:18] <edmoore> it will teach you how to work it out
[16:18] <edmoore> and generally some more stuff about parachutes
[16:18] <jakeio> Probably! Is it the UKHAS conference video about parachutes and terminal velocity?
[16:18] <edmoore> yes
[16:18] <jakeio> Ah.
[16:19] <edmoore> that sounds ominous
[16:20] <jakeio> I've seen that one!
[16:20] <matt|home> Total Outstanding Balance 1 $1043.10 -_-
[16:20] <matt|home> fine..
[16:20] <edmoore> so well we can work it out here easily enough using the equation in that video
[16:20] <edmoore> 24" in renaissance units is 0.61m
[16:21] <jakeio> Renaissance units!?
[16:21] <edmoore> the descent velocity equation is:
[16:21] <edmoore> v = sqrt( 2mg/dCdA )
[16:21] <jakeio> Don't worry edmoore!
[16:21] <jakeio> Thank you though!
[16:22] <jakeio> I'm just being paranoid really.
[16:22] <jakeio> I tend to be a bit like that before I purchase something! :D
[16:23] <edmoore> so if it's 1kg then i make the descent rate to be 8-9m/s
[16:23] <edmoore> which is a bit high
[16:23] <edmoore> we usually shoot for 5m/s here
[16:25] <jakeio> OK, thanks.
[16:25] <jakeio> I wasn't really sure what the descent should be. So thank you once again!
[16:26] <AndyEsser> 9m/s is about 20 mph - which is not ideal for stuff falling :)
[16:27] <daveake> jakeio: Have you read http://www.daveakerman.com/?p=1732 ?
[16:27] <jakeio> Not as of yet, I shall do so.
[16:28] <daveake> It'll answer quite a few of your recent questions, so please do :)
[16:28] <jakeio> Haha, OK. Fair enough.
[16:30] <SpacenearUS> New position from 03W7UNR after 032 days silence - 12http://tracker.habhub.org/#!qm=All&q=W7UNR
[16:30] <SpacenearUS> New vehicle on the map: 03KD0AWK - 12http://tracker.habhub.org/#!qm=All&q=KD0AWK
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[18:23] <DL7AD> good evening
[18:24] <DL7AD> thomas KT5TK and I are going to launch an ssdv balloon tomorrow in the morning.
[18:24] <DL7AD> floater battery only. runtime ~48h
[18:24] <DL7AD> normal aprs and aprs-ssdv transmission(low duty cycle, QVGA) on 144.800
[18:25] <DL7AD> on 144.85125mhz we will transmit CW, 2GFSK SSDV (VGA), 2FSK(RTTY) SSDV (VGA)
[18:26] <DL7AD> http://predict.habhub.org/#!/uuid=e5905c818871c4b3c34c3326266f299a5ab9af5e
[18:28] <adamgreig> cool, good luck!
[18:29] <DL7AD> thx adamgreig
[18:29] <DL7AD> we will launch one of our new rev 7b PCBs
[18:29] <lz1dev> ssdv over aprs makes hams happy
[18:29] <lz1dev> :)
[18:29] <DL7AD> lz1dev: nobody complained last time
[18:30] <DL7AD> btw call DL4MDW-12
[18:30] <lz1dev> you should increase the values for WIDE
[18:30] <DL7AD> seriosly....
[18:31] <lz1dev> :p
[18:31] <DL7AD> no path for the images
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[18:32] <SM0ULC-Reb> DL7AD: cool!
[18:32] <DL7AD> tagging SA6BSS-Mike|2
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[18:33] <SM0ULC-Reb> tagging?
[18:35] <DL7AD> i want the IRC-window to popup at him
[18:37] <arjunnaha> Has anyone had any luck getting an AirSpy to work with gqrx on the Mac?
[18:37] <adamgreig> just worked with airspy=0 or whatever
[18:37] <adamgreig> check you have a suitably new version of gqrx I guess..
[18:38] <russss> arjunnaha: I recommend SoapySDR over gqrx now https://github.com/pothosware/SoapySDR
[18:39] <russss> er sorry
[18:39] <russss> I mean cubicsdr http://cubicsdr.com/
[18:39] <russss> it uses SoapySDR as an abstraction layer, which is a lot better and less crashy than whatever gqrx does
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[18:40] <arjunnaha> Looks interesting, will have to give it a shot
[18:40] <russss> it's not *quite* as full-featured as gqrx, but it's pretty good.
[18:40] <adamgreig> gqrx isn't very full featured...
[18:40] <russss> heh
[18:41] <russss> the things it lacks over gqrx are mainly bookmarking and the UDP output
[18:41] <arjunnaha> Only thing for me is someone that can take the signal and put it into dl-fldigi!
[18:42] <arjunnaha> *or something for that matter
[18:42] <russss> yeah you can do that with soundflower or whatever
[18:43] <SM0ULC-Reb> i actually run sdrconsole under win on the mac
[18:43] <russss> the network remote SDR stuff with SoapyRemote is pretty neat as well
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[18:49] <SpacenearUS> New vehicle on the map: 03co1cb_chase - 12http://tracker.habhub.org/#!qm=All&q=co1cb_chase
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[18:58] <SA6BSS-Mike|2> DL7AD: ok, tnx for info
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[19:36] <arjunnaha> Does anyone have any recommendations for a 3G/LTE/4G type dongle with support for an external antenna (for the car roof)
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[19:49] <SpeedEvil> The alternative suggestion is to not do that, and to simply put it in a waterproof USB enclosure
[19:54] <SpacenearUS> New position from 03X0 after 033 days silence - 12http://tracker.habhub.org/#!qm=All&q=X0
[20:04] <daveake> My current myfi is better without an external aerial than the previous one was with an external aerial
[20:04] <daveake> So I'd just get a decent myfi and not worry
[20:07] <michal_f> daveake, do you mean this: https://en.wikipedia.org/wiki/MiFi ?
[20:11] <daveake> Yes. I have an EE one and it's very good.
[20:12] <Geoff-G8DHE> Got to agree I fitted one to the campervan recently and the improvment is marginal at best over a bear device ....
[20:12] <michal_f> thanks. last year I bought some kind of router with external antenna and the experience was terrible
[20:12] <michal_f> I need a replacement
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[20:58] <SpacenearUS> New vehicle on the map: 03W1APX-11 - 12http://tracker.habhub.org/#!qm=All&q=W1APX-11
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[21:36] <SA6BSS-Mike|2> Vaizki: just checked and my order on the airspy mini is complete and its have been sent of, got a tracking nr :)
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[22:03] <SpacenearUS> New vehicle on the map: 03E3SPCE - 12http://tracker.habhub.org/#!qm=All&q=E3SPCE
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[22:31] <AdamDynamic> I've just created my flight document for the weekend, I've just noticed that the payload configuration document that I've attached to the document has a different shift than the PITS board that I'm using (880Hz vs. 910Hz)
[22:31] <AdamDynamic> Will this matter? Do I need to create a new plan?
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[22:58] <Ian__> I think that the error is small enough to be inconsequential.
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[23:17] <SpacenearUS> New position from 03NOTAFLIGHT after 03a day silence - 12http://tracker.habhub.org/#!qm=All&q=NOTAFLIGHT
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[00:00] --- Thu May 5 2016