highaltitude.log.20160322

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[03:57] <SpacenearUS> New vehicle on the map: 03KE4ERF-11 - 12http://tracker.habhub.org/#!qm=All&q=KE4ERF-11
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[06:01] <R34lB0rg> good morning people
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[07:03] <SpacenearUS> New position from 03TT7 after 039 hours silence - 12http://tracker.habhub.org/#!qm=All&q=TT7
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[08:37] <amell> ping Upu
[08:38] <amell> anyone have one of these lora gateways?
[08:39] <fsphil> maybe
[08:39] <amell> helpful
[08:39] <fsphil> (yes, but don't tell anyone)
[08:40] <amell> think you just did. anyway. lora pi board. where is the software for the pi? just wanted to check it over. think i might get something in place ready for hab season and it would make my debugging much easier..
[08:40] <fsphil> https://github.com/PiInTheSky/lora-gateway
[08:41] <amell> so to be clear this is lora+pi standalone and doesnt need piinthesky board.
[08:41] <amell> it wasnt clear from the project name
[08:41] <fsphil> the project name is lora-gateway, PiInTheSky is just the github account
[08:41] <amell> ok
[08:42] <fsphil> but yeah it doesn't need a pits board
[08:42] <fsphil> it's written assuming one of Upu's lora boards
[08:42] <amell> this is autotune? I wouldnt need to login to it for every flight?
[08:42] <amell> I am hoping it will just pick up anything lora in the area.
[08:43] <fsphil> no auto tune yet
[08:43] <amell> thought we talked about announcement channel for frequencies. i take it not yet done
[08:43] <fsphil> there are tests in for a kind of calling channel, where a payload can say "I'm over here, using this mode."
[08:43] <fsphil> still early days for that
[08:44] <fsphil> it's in the code but I don't believe anyone has used it yet
[08:44] <amell> ok thanks. so still work to do. ok.
[08:44] <amell> seems its all kicking off in brussels. on that note i should get to work.
[08:44] <amell> thanks for pointers, i will look at this code. talk later.
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[08:54] <edmoore> i like the idea of hab season
[08:54] <edmoore> like pheasants
[09:01] <AndyEsser> hunting for habs
[09:03] <Vaizki> combined drone racing and battle habs
[09:03] <Vaizki> tropopause wars
[09:07] <daveake> amell the software does support the "calling channel", it's just that nobody has flown it yet
[09:07] <daveake> the AFC is there to keep it locked to a payload, not to find one
[09:08] <daveake> oh he's gone; hadn't noticed
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[10:22] <AndyEsser> hmm...
[10:22] <AndyEsser> just noticed there are a couple antennae on the side of the office building, that look to be around about 70cm band size
[10:22] <AndyEsser> wonder what they're used for
[10:22] <AndyEsser> and if not in use... could... I acquire them :)
[10:47] <Ian_> I remember where a Frame was having lots of wires torn off it and a bloke thought, after hours, that there was a nice gash bit of twisted purple and blue pair cable that he could have.
[10:48] <Ian_> Well he rolled up this 30 or 40 metres of wire and put it in his bag. The timed channel checks on the message switch stopped working and after about 40 minutes
[10:49] <Ian_> it became a technical investigation and some time after the loss of a pulse synetic signal was diagnosed.
[10:50] <Ian_> Guess that bit of wire took the signal from the old to the new frame . . . it turned out to be an expensive bit of wire for the lad.
[10:50] <Ian_> AndyEsser, there is a moral to this story . . .
[10:50] <AndyEsser> don't nick it?
[10:50] <AndyEsser> :P
[10:50] <Ian_> It looks not to be in use . . .
[10:51] <AndyEsser> I'm just trying to think what it could be... it's not our wireless link, we don't have any RF monitored/controlled equipment
[10:51] <AndyEsser> hmm
[10:51] <AndyEsser> shall investigate
[10:52] <Ian_> Maybe it's someones obscure contingency plan. I think that you would have a lot more to lose than to gain. Best to just be curious.
[10:54] <Geoff-G8DHE_> No sign of the BARC flights yet
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[10:56] <SpacenearUS> New vehicle on the map: 03BARC3 - 12http://tracker.habhub.org/#!qm=All&q=BARC3
[10:59] <AndyEsser> Geoff-G8DHE_: speak of the devil
[11:00] <AndyEsser> Ian_: maybe... we're not that big a company to not be able to find out
[11:02] <Geoff-G8DHE_> Humm nothing on the announced freq's on the websdr next to them!
[11:07] <SpacenearUS> New position from 03PI868 after 0319 hours silence - 12http://tracker.habhub.org/#!qm=All&q=PI868
[11:07] <Upu> !dial barc
[11:07] <SpacenearUS> 03Upu: Latest dials for 03BARC 10(c8db): none
[11:08] <Upu> .payload c8db
[11:08] <SpacenearUS> 03Upu: Payload 03BARC 10(c8db) 03$$BARC - 03PITS Test - 03434.25 MHz USB 03RTTY 300/910Hz ASCII-8 none 2
[11:22] <SpacenearUS> New vehicle on the map: 039w2vhf-9_chase - 12http://tracker.habhub.org/#!qm=All&q=9w2vhf-9_chase
[11:23] <SpacenearUS> New position from 03SP6NVB-11 after 03a day silence - 12http://tracker.habhub.org/#!qm=All&q=SP6NVB-11
[11:25] <SpacenearUS> New vehicle on the map: 039w2vhf_chase - 12http://tracker.habhub.org/#!qm=All&q=9w2vhf_chase
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[11:39] <Vaizki> so UBSEDS14 missed Malta or didn't make it.. but it should hit Alexandria about now if it's still up and on the hysplit?
[11:43] <Geoff-G8DHE_> Somewhere between Athens and Cario at least
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[11:46] <Vaizki> wow there are actually no aprs igates or digipeaters in cairo/alexandria?
[11:46] <Vaizki> or none that they want the government to know about I guess...
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[12:54] <daveake> BARC stretching ISH to new limits
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[13:05] <LunarMobile> How much delay do they have so far?
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[13:17] <daveake> 3:20
[13:18] <Geoff-G8DHE-Lap> Not looking good
[13:21] <daveake> 2 more hours left on the notam, so plenty of time :)
[13:23] <fsphil> it's worse to rush, and launch before they're ready
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[13:32] <daveake> it is
[13:33] <daveake> doesn't seem like they're rushing
[13:33] <craag> so this is 2 launches
[13:33] <craag> they're doing 15 next time?
[13:35] <daveake> 23 I think
[13:35] <craag> hehe ok
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[13:36] <AndyEsser> 23 on May 12th
[13:36] <AndyEsser> going to pop down to observe
[13:36] <AndyEsser> should be interesting to watch
[13:41] <mattbrejza> take popcorn and a chair
[13:43] <AndyEsser> ha, mean
[13:43] <craag> no, mean would be taking a webcam and flash media live encoder
[13:44] <AndyEsser> craag: really? We have Twitch nowadays - no need for that archaic piece of software
[13:44] <fsphil> a big sound system and the benny hill music
[13:45] <craag> lol yes fsphil
[13:45] <AndyEsser> hahaha
[13:48] <Geoff-G8DHE_> I knew if I went out and did another job it would launch!
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[13:59] <AndyEsser> https://twitter.com/Braun23Austin/status/712071397929975808/photo/1
[14:00] <AndyEsser> "units of Elephants" should be used more often
[14:00] <Geoff-G8DHE_> !dial barc3
[14:00] <SpacenearUS> 03Geoff-G8DHE_: Latest dials for 03BARC3 10(ed9e): 03434.14926 MHz, 135.618342 MHz, 434.150149 MHz, 434.1495 MHz
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[14:08] <SpacenearUS> New position from 03BARC after 036 days silence - 12http://tracker.habhub.org/#!qm=All&q=BARC
[14:10] <Geoff-G8DHE_> Humm BARC via BARC3 ?
[14:10] <gonzo_> barcing up the wrong tree
[14:11] <Geoff-G8DHE_> Ah ha 434.450 not .250 ...
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[14:11] <G0WXI> !dial BARC
[14:11] <SpacenearUS> 03G0WXI: Latest dials for 03BARC 10(c8db): none
[14:12] <Geoff-G8DHE_> I can see it on the web sdr but only one signal at a time ...
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[14:31] <G0WXI> Is BARC on .250?
[14:31] <G0WXI> !dial BARC
[14:31] <SpacenearUS> 03G0WXI: Latest dials for 03BARC 10(c8db): 03135.618342 MHz, 434.450149 MHz
[14:41] <edmoore> baader-meinhoff daveake, i've just randomly had to use exiv2 for the first time
[14:50] <daveake> what a small small world :)
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[14:57] <Upu> that is one wobbly assed signal
[14:57] <Geoff-G8DHE_> they have both been at various times
[14:58] <Geoff-G8DHE_> Doesn't help being at 300b either, not as if they needed the faster telelmetry!
[14:59] <Upu> no they aren't using cameras
[15:00] <Geoff-G8DHE_> time for more coffee
[15:04] <edmoore> same
[15:05] <edmoore> hairy prediction
[15:08] <Ian_> I would have thought that BARC would have taken this opportunity to practice a bit of IRC communicating ahead of herding 23 cats into the air on 12 May. A solid assigned freq might have been convincing.
[15:08] <Geoff-G8DHE-Lap> If they all use the BARC callsign it will be murder as well!
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[15:10] <mattbrejza> how many peopl;e actually track a typical midweek launch anyway?
[15:10] <mattbrejza> fairly sure <23
[15:12] <craag> ~10-15 on a good day?
[15:12] <craag> with irc and twitter announcements and stuff to keep people interested
[15:13] <Geoff-G8DHE-Lap> You had a page once craag didn't you with numbers of stations etc. ?
[15:13] <mfa298> http://habitat.habhub.org/stats/ says <10 today
[15:13] <Geoff-G8DHE-Lap> and some of those are via websdr!
[15:14] <craag> https://philcrump.co.uk/ukhas_listeners/
[15:14] <craag> https://philcrump.co.uk/ukhas_listeners/all.html
[15:14] <craag> as of conf 2015
[15:14] <daveake> If they all have similar flight profiles, then it would be worth setting up a mobile station somewhere near the landing area
[15:14] <cm13g09> mfa298: ping
[15:14] <daveake> tune in to as many as possible as they come in to land
[15:14] <mfa298> cm13g09: pong
[15:15] <cm13g09> mfa298: to PM
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[15:15] <Ian_> I'm surprised that BARC haven't been more active tracking their own packages today.
[15:15] <craag> and https://philcrump.co.uk/ukhas_listeners/timelapse.html
[15:16] <craag> Ian_: They don't tend to run 'online'
[15:16] <Ian_> It strikes me that they need to do a lot of coordinating, testing etc. ahead of May.
[15:16] <Geoff-G8DHE-Lap> BARC3 is both a balloon and a tracker & I don't think there same object!
[15:16] <mfa298> Ian_: they do appear to be gettign some telemetry from the stats page
[15:17] <Ian_> If they aren't seen, then the perception is that they aren't there!
[15:23] <clwillingham> Hey, so i'm working on a weather balloon payload with an onboard raspberry pi running nodejs. Because i'm using NodeJS I could use PouchDB to store data locally and replicate it to the habhub server when it gets a connection... would something like that work? or could that mess up the server db?
[15:24] <SpeedEvil> In general, you will not have connectivity in flight
[15:24] <SpeedEvil> How are you planning to connect?
[15:25] <clwillingham> Yeah, thats why i'm looking to store it. we have two ways of communicating with the payload. the first is a HopeRF Transceiver, to be honest we don't have high hopes for that one though. so we did include a gsm module as well which will only activate after the payload touches down
[15:26] <fab4space> focus on the hoperf reliability clwillingham
[15:26] <fab4space> gsm coverage can be a big issue
[15:26] <fab4space> and "activate after the payload touches down" is not always trivial
[15:26] <craag> fy we've done 100s of km out of hoperf modules, when used for downlink simplex.
[15:26] <SpeedEvil> GSM coverage may be fine at head-height, but zero on the ground
[15:26] <craag> *fyi
[15:26] <SpeedEvil> and is often
[15:26] <clwillingham> It's reliable, but i'm worried that its not going to have the range, its a LoRa Transceiver we've tested it up to about 2 miles on the ground
[15:27] <craag> We've had 100+ miles out of lora in the air
[15:27] <craag> when ued correctly
[15:27] <craag> *used
[15:27] <Geoff-G8DHE_> If its using LORA then it shouldn't be a problem
[15:27] <Laurenceb> shame about UBSEDS-14
[15:27] <Geoff-G8DHE_> Watch tomorrows flight from daveake
[15:27] <Laurenceb> it just missed circumnavigation
[15:27] <adamgreig> no news on it Laurenceb?
[15:27] <adamgreig> where'd it get to?
[15:28] <Laurenceb> Algeria
[15:28] <clwillingham> That's awesome, good to know. That was what i was most worried about to be honest. Did you use a monopole antenna? or something directional?
[15:28] <Laurenceb> looks like battery died
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[15:28] <Geoff-G8DHE_> Which band for the LORA ?
[15:28] <clwillingham> 915mhz
[15:28] <adamgreig> aww, so close!
[15:28] <Laurenceb> It'd be interesting to launch a UBSEDS-15 with just solar
[15:28] <Geoff-G8DHE_> Ah then a beam is essential
[15:29] <Geoff-G8DHE_> on the ground
[15:29] <Laurenceb> the envelope should fly for a couple of years inflated with H2
[15:29] <Laurenceb> UBSEDS have managed to crack pretty much the ideal envelope
[15:29] <craag> clwillingham: What country are you in?
[15:29] <Laurenceb> pity battery tech isnt up to powering it
[15:30] <clwillingham> US, hence the reason we where looking at using GSM on the ground. we're launching from florida
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[15:30] <craag> Ah ok
[15:30] <craag> GSM on the ground will be problematic anywhere
[15:30] <clwillingham> the entire central part of the state has almost complete gsm coverage
[15:30] <craag> GSM is designed to work well at arm/head height, not on the ground/in a ditch
[15:31] <clwillingham> interesting
[15:31] <Geoff-G8DHE_> accept when the aerial is lying in a ditch of course
[15:31] <Geoff-G8DHE_> or wet grass
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[15:31] <Geoff-G8DHE_> BARC3 should have an easy landing
[15:32] <BARC_> Looks like it at the moment
[15:32] <BARC_> almost on it
[15:32] <clwillingham> Well, it is rather flat state :-P every time we've run the predictor its either landed in a field or a lake
[15:32] <craag> hah won't work well underwater either ;)
[15:32] <Geoff-G8DHE_> http://360.g8dhe.net/HAB_Flights/2016_Flights/BARC_20160322/
[15:32] <craag> but yeah - concentrate on the LoRa, gsm is fine as backup.
[15:33] <craag> Take a look at dave akerman's blog
[15:33] <craag> he's got a lot on what he's been doing successfully with lora
[15:33] <craag> pics of the payloads/receivers and such
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[15:34] <clwillingham> Cool, thanks.
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[15:48] <R34lB0rg> is it correct that a balloon is about 4 times its initial volume when it reaches 10_000m?
[15:49] <SpeedEvil> about that
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[16:08] <R34lB0rg> nice data: http://www.zmatt.net/weather-balloon-physics/
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[16:09] <Ian_> BARC just needs to shorten and miss the trees and land in the field rather than among houses.
[16:19] <Ian_> Landfall in field off Willington Road, SE of Kirton End
[16:19] <Ian_> No wet feet today!
[16:25] <Ian_> A16 S from Boston to the Roundabout at Kirton. Right into Station Road, dogleg left into B1397 and then right into Willinton Road.
[16:27] <R34lB0rg> anyone know the initial volume and burst pressure of the BU60-1 balloon?
[16:30] <Ian_> I think that BARC began moving across the field before being lost by BARC3 3 minutes ago. Headed for farmhouse?
[16:31] <Ian_> BARC_ on it? ^ ^ ^
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[16:59] <BARC_> yep on it
[16:59] <BARC_> thanks guys
[17:00] <BARC_> everything looking good
[17:01] <BARC_> the kids will be happy. Thanks for the ears
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[17:02] <SpacenearUS> New vehicle on the map: 03CALLSIGN123_chase - 12http://tracker.habhub.org/#!qm=All&q=CALLSIGN123_chase
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[18:25] <SpacenearUS> New vehicle on the map: 03HAPROS - 12http://tracker.habhub.org/#!qm=All&q=HAPROS
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[18:35] <SpacenearUS> New vehicle on the map: 03PYSY - 12http://tracker.habhub.org/#!qm=All&q=PYSY
[18:35] <SpacenearUS> New vehicle on the map: 03PYSYchase - 12http://tracker.habhub.org/#!qm=All&q=PYSYchase
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[18:51] <rhys> hi
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[18:51] Nick change: rhys -> Guest44511
[18:51] <Guest44511> hi
[18:52] <Guest44511> #rhysa
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[18:52] <daey> this is a simple schematic from TIs datasheet for the CC1125 transmitter. how does this chip work without any pin being grounded? o0 http://i.imgur.com/BfUwDwM.png
[18:53] <daey> the only groundings are through high value resistors or capacitors
[18:53] <adamgreig> probably there is a ground pad on the bottom of the chip
[18:54] <Geoff-G8DHE_> I suspect that is only diagrmatic showing the key features look u section 7.2
[18:54] <adamgreig> that diagram shows all 32 pins so there's nothing missing there
[18:55] <daey> Geoff-G8DHE_: 7.2 shows essentially the same, just the component values change for the different frequency bands. so mainly PA (pin 17) differences
[18:56] <Geoff-G8DHE_> as adamgreig then but its poor layout in that case
[18:56] <adamgreig> having one big ground pad on the bottom of the chip is fairly common
[18:57] <daey> there is a big pad there yes
[18:57] <Geoff-G8DHE_> Yes first page shows ground pad
[18:58] <daey> that chip is going to be a bitch to hand solder T_T
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[19:16] <SpacenearUS> New position from 03hkLo1 after 0312 days silence - 12http://tracker.habhub.org/#!qm=All&q=hkLo1
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[19:49] <SpacenearUS> New vehicle on the map: 03ANDYJ_chase - 12http://tracker.habhub.org/#!qm=All&q=ANDYJ_chase
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[20:42] <tweetBot> @randomrace_ru: (0@ >1;5B5; 2>:@C3 A25B0? $0=B0AB8:0! https://t.co/k81Lqdg0U9
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[22:40] <tweetBot> @philcrump2: A few photos from the UKHASnet Hack Weekend on the Isle of Wight. The sous-vide steak was soo good! https://t.co/evBKjt8GCN #ukhasnet #ukhas
[22:40] <Lunar_Lander> NICE!
[22:40] <Lunar_Lander> thanks for sharing craag :)
[22:44] <bertrik> are there any flights scheduled that might reach the west of the netherlands for this weekend? there is open hackerspaces day next saturday, and it might be nice to do a hab tracking demonstration
[22:45] <craag> np Lunar_Lander :)
[22:45] <Lunar_Lander> :)
[22:45] <bertrik> !flights
[22:45] <SpacenearUS> 03bertrik: Current flights: 03Pecan SSDV Tracker 10(5ab8), 03UBSEDS14 434.600 CONTESTIA 16/1000 10(39cd), 03BARC 10(c8db), 03Barc3 10(ed9e), 03BARC 10(8d7c)
[22:47] <mattbrejza> !ping UKSEDS
[22:47] <SpacenearUS> 03mattbrejza: No contact from 03UKSEDS
[22:48] <mattbrejza> !ping UKSEDS10
[22:48] <SpacenearUS> 03mattbrejza: No contact from 03UKSEDS10
[22:48] <craag> !ping UBSEDS14
[22:48] <SpacenearUS> 03craag: Last contact with 03UBSEDS14 was 03a day ago
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[22:50] <SpacenearUS> New position from 03ARY2T after 03a day silence - 12http://tracker.habhub.org/#!qm=All&q=ARY2T
[23:29] <SpacenearUS> New position from 03SP6NVB-11 after 0311 hours silence - 12http://tracker.habhub.org/#!qm=All&q=SP6NVB-11
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[00:00] --- Wed Mar 23 2016