highaltitude.log.20180116

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[02:15] <SpacenearUS> New vehicle on the map: 03YERRA - 12https://tracker.habhub.org/#!qm=All&q=YERRA
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[04:00] <SpacenearUS> New position from 03icarusIV after 036 hours silence - 12https://tracker.habhub.org/#!qm=All&q=icarusIV
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[05:05] <SpacenearUS> New vehicle on the map: 03XX_ - 12https://tracker.habhub.org/#!qm=All&q=XX_
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[05:18] <labjg> anyone here know what to put in the 'sensor' field for custom parser fields on genpayload?
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[08:37] <craag> richardeoin: Ok thanks, I might take the receiver out of circuit at farnham until you tell me otherwise and put a lora rx back on there.
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[08:47] <hopej> hello - I tested my tracker yesterday and it seems to have disappeared from the habhub map. I thought things stayed there forever.
[08:48] <craag> hopej: Top-left, 'Last: 1 day' -> select longer :)
[08:48] <hopej> yup, tried that
[08:48] <hopej> set to 3 days
[08:48] <hopej> it was only last night
[08:51] <craag> Hmm I tried it and it's now crashed my browser :/
[08:51] <hopej> maybe a glitch on the site?
[08:52] <craag> likely jsut trying to display too much data
[08:52] <craag> what was the callsign?
[08:53] <hopej> MILLFIELD
[08:53] <lz1dev> .ping MILLFIELD
[08:53] <SpacenearUS> 03lz1dev: No contact from 03MILLFIELD
[08:53] <lz1dev> got auto deleted probably
[08:54] <craag> huh didn't know that was a thing, what causes getting auto deleted?
[08:54] <daveake> That quickly? What's the logic? It was on late yesterday afternoon.
[08:54] <lz1dev> time till deletion can be seen on the admin page
[08:54] <lz1dev> its based on how long it was 'in the air'
[08:54] <hopej> oh ok. It was only up for a very short test
[08:54] <daveake> Ah right
[08:55] <daveake> Makes sense - gets the tests off the map
[08:55] <hopej> yeah - not complaining just wondering
[08:55] <daveake> I briefly wondered if there was special logic for all those M* and N* sonde payloads :)
[09:10] <David-SM0ULC> morning guys!
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[09:11] <David-SM0ULC> hopej: tracker for float or up/down?
[09:11] <hopej> sorry, I'm not sure I understand...
[09:12] <craag> He's asking whether your flight is planned to be a long-duration (float), or up-burst-down.
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[09:24] <SpacenearUS> New position from 03XX after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=XX
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[09:34] <hopej> Ahh it is an up-burst-down
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[10:56] <hopej> what is the best way to set the gateway software to run on boot on a r-pi?
[10:59] <hopej> add the command to rc.local?
[11:13] <SpacenearUS> New vehicle on the map: 03SHSSP1 - 12https://tracker.habhub.org/#!qm=All&q=SHSSP1
[11:15] <Darkside> that is a way, yes
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[11:17] <SpacenearUS> New vehicle on the map: 03M2443184 - 12https://tracker.habhub.org/#!qm=All&q=M2443184
[11:18] <SpacenearUS> New vehicle on the map: 03M4533239 - 12https://tracker.habhub.org/#!qm=All&q=M4533239
[11:18] <hopej> the problem I am having with that way is that it does not find the configuration file
[11:21] <Darkside> ah
[11:21] <Darkside> thats because when that script is run it will be running from the wrong location
[11:21] <Darkside> suggst making a bash script which cd's into the correct directory, *then* runs the software
[11:23] <hopej> ok.
[11:23] <hopej> i will check into that
[11:25] <craag> Here's a little bash magic that cd's into the directory that the script is in, rather useful for this.
[11:25] <craag> https://github.com/philcrump/ariss-webcam-ghy99/blob/master/webcam-ghy99#L3-L4
[11:25] <hopej> looks like that worked
[11:28] Nick change: Kryczek_ -> Kryczek
[11:28] <hopej> why does it need the while loop?
[11:29] <craag> sorry just the highlighted lines
[11:30] <hopej> ahh
[11:30] <hopej> ok
[11:30] <hopej> right that seems to have worked, but I can't then seem to quit it.
[11:30] <hopej> I tried ctrl-c but it still seems to be running in the background
[11:31] <craag> yes. try 'killall <name of tracker program>'
[11:31] <craag> eg. killall tracker
[11:31] <craag> as a command
[11:32] <craag> ideally you'd make it into a systemd service so you can control it that way instead.
[11:32] <SpacenearUS> New vehicle on the map: 03N3320038 - 12https://tracker.habhub.org/#!qm=All&q=N3320038
[11:34] <hopej> yeah I did try that, but it ran entirely in the background so I couldn't see the interface
[11:35] <craag> ah this is the gateway, sorry
[11:35] <craag> The way I do this is to start it up in a 'screen' session
[11:37] <dbrooke> https://ukhas.net/wiki/dbrooke_nodes:dbpg explains how to start a UKHASnet gateway in screen (at the bottom of the page), you could adapt for the LoRa gateway
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[11:37] <craag> eg. to start it: 'screen -dmS gateway <application>'
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[11:38] <craag> to 'grab' the session: 'screen -dr gateway'
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[11:38] <craag> and to exit the session (leaving it running), Ctrl+A, d.
[11:39] <SpacenearUS> New vehicle on the map: 03M4453002 - 12https://tracker.habhub.org/#!qm=All&q=M4453002
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[11:40] <hopej> ahh ok
[11:40] <hopej> let me try that
[11:41] <hopej> and have the crontab boot the bash script i made earlier?
[11:42] <SpacenearUS> New position from 03RSIST after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=RSIST
[11:42] <craag> If you're running from /etc/rc.local: you'll need to 'sudo screen -dr ...' to attach, as it's effectively done by the root user.
[11:42] <craag> Yes, stick with that, put this where you call the tracker app from the bash script.
[11:43] <craag> wait sorry, I'll learn to read soon. Yes put this in crontab instead, that's a good plan.
[11:43] <craag> then you don't need my sudo bit :P
[11:43] <hopej> the issue I forsee is that if i plan to make a portable module without a keyboard then I would need it to start attached to the screen
[11:43] <hopej> i'll get my head round that when i come to it then
[11:44] <hopej> i guess there is not need to close it in that situation
[11:45] <craag> that could be done.. get this bit working first :)
[11:47] <SpacenearUS> New vehicle on the map: 03MILLFIELD - 12https://tracker.habhub.org/#!qm=All&q=MILLFIELD
[11:48] <dbrooke> if you want to start it at boot time on a local display, rather than in screen, then there's a way to configure auto-login to an account in which you could start it from .bash_profile
[11:50] <dbrooke> though bear in mind that if you're using 20.8kHz bandwidth you're likley to need a way of manually tuning it to capture the signal
[11:50] <dbrooke> so may need a keyboard
[11:50] <hopej> I am trying to set up with calling mode and AFC
[11:51] <dbrooke> OK, calling mode intentionally uses a wider bandwidth for that reason
[11:54] <hopej> auto login says to edit the inittab file for raspberry pi.
[11:54] <hopej> I don't seem to have that file
[11:58] <dbrooke> systemd does it differently
[12:00] <dbrooke> this looks plausible, though I can't remember if it's what I've used https://unix.stackexchange.com/questions/42359/how-can-i-autologin-to-desktop-with-systemd#289612
[12:01] <SpacenearUS> New vehicle on the map: 03N1640171 - 12https://tracker.habhub.org/#!qm=All&q=N1640171
[12:01] <dbrooke> scroll up from that, as it's part way down the page
[12:08] Nick change: luteijn -> pc1pcl
[12:08] Nick change: pc1pcl -> luteijn
[12:10] <hopej> woo auto login and gateway started
[12:10] <hopej> now will it pick up my calling signal
[12:10] <craag> nice work :)
[12:11] <hopej> looks like it
[12:11] <hopej> https://ssdv.habhub.org/MILLFI
[12:12] <craag> yay
[12:12] <fsphil> nice
[12:15] <SpacenearUS> New vehicle on the map: 03N4620535 - 12https://tracker.habhub.org/#!qm=All&q=N4620535
[12:16] <hopej> seem to have lost gps lock though. odd.
[12:16] <hopej> probably clouds or something
[12:16] <hopej> dunno
[12:17] <Darkside> clouds shouldn't cause it to lose gps lock!
[12:17] <SpeedEvil> Unless it's way too marginal.
[12:17] <SpeedEvil> Or they're mushroom clouds
[12:17] <hopej> It is inside leaning up against a window on the ground floor of a tall building.
[12:17] <hopej> so probably not the best signal anyway
[12:18] <SpeedEvil> IR coatings on windows can be conductive and stop GPS
[12:18] <hopej> yeah, think they do have IR coating
[12:18] <hopej> i will put it outside in a bit
[12:21] <hopej> immediately got a lock!
[12:21] <hopej> but now its cold in here
[12:28] <dbrooke> those images look a bit soft to me, is there a protective sheet over the lens?
[12:29] <hopej> yes there is
[12:29] <dbrooke> OK, as long as you know 8-)
[12:30] <hopej> no worries - didn't want it to get scratched during testing
[12:30] <hopej> i'll tacke it of to check now though
[12:31] <dbrooke> yeah, I think a few times it's been forgotten before launch so just thought I'd mention it
[12:31] <fsphil> there was at least one flight with it still stuck on :)
[12:32] <fsphil> much better
[12:32] <dbrooke> better colour too
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[12:49] Action: vaizki hums the "every pixel is sacred" song
[12:51] Action: SpeedEvil was just looking at a 16*16 $9000 imager.
[12:52] <SpeedEvil> https://www.alibaba.com/product-detail/Terahertz-Imaging-Camera-Model-Tera-1024_50012182093.html
[12:53] <vaizki> ha.. would you really buy that off alibaba..
[12:53] <vaizki> and it doesn't even go up to ONE terahertz ;)
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[12:53] <SpeedEvil> I think it's actually teh OEM
[12:54] <SpeedEvil> It's just everywhere else they have 'call for price' and that's the only site with a price
[12:54] <vaizki> ah. right.
[12:54] <SpeedEvil> hah. 'pixel-pixel variation under 20%'
[12:54] <vaizki> so that's the maximum price you'd ever imagine being quoted +20%
[12:55] <SpeedEvil> probably
[12:55] <SpeedEvil> thz stuff is decidedly un-cheap at the moment
[12:56] <vaizki> what are you imagining to image
[12:57] <SpeedEvil> I was just reacting to 'every pixel is sacred' - and had happened to recently look that up.
[13:00] <SpeedEvil> Imagers are neat. https://www.youtube.com/watch?v=OpMs2TexRFs including the odd ones
[13:00] <SpeedEvil> The Future of Astronomy is Super(conducting) Microwave Kinetic Inductance Detectors
[13:01] <gonzo_> there was a similar monty python song
[13:01] <vaizki> gonzo_, o'really :D
[13:02] <gonzo_> hmmm, googling, I find the second hit, was a reworded version of the song!
[13:05] <vaizki> I may have slipped into a bit of paraphrasing myself there..
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[13:37] <SpacenearUS> New vehicle on the map: 03N4IP-11 - 12https://tracker.habhub.org/#!qm=All&q=N4IP-11
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[16:13] <SpacenearUS> New position from 03KJ4TDM-11 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=KJ4TDM-11
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[16:50] <SpacenearUS> New position from 03N4XWC-1 after 0317 days silence - 12https://tracker.habhub.org/#!qm=All&q=N4XWC-1
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[17:05] <SpacenearUS> New position from 03BB04 after 0321 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BB04
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[17:19] <daedalus_> Good evening! My name is Athanasios and i will attempt to send my first HAB begining of next week.
[17:20] <daedalus_> I would like to address a question to the general public, if someone can help me.
[17:22] <daedalus_> For receiving telemetry i will use a collinear antenna and a LoRa gateway. Does anybody know what type of wire i need to connect these two together?
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[17:28] <mfa298> a good quality coax, the quality to use depends on distance and budget
[17:29] <daedalus_> You mean the distance between them?
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[17:30] <mfa298> yes
[17:31] <mfa298> all coax has loss, more expensive the cable usually the lower the loss per unit length, if there's too much loss then you don't get enough signal at the receiver (lora gateway)
[17:31] <daedalus_> It will be about 2 meters.. Have you got something to recommend me?
[17:32] <mfa298> rg58 would probably do for a 2m length (assuming 433Mhz lora)
[17:33] <daedalus_> Yes it is a 434mhz
[17:34] <daedalus_> So the closer to LoRa the better? Regarding signal speaking
[17:35] <daedalus_> Because i can get it to 1 meter distance also
[17:37] <mfa298> 2m probably won't make that much difference, if you were talking about 20m then there might be a better cable to use.
[17:40] <daedalus_> Ok! I see also that there are different prices for rg58.. a range from 0,50 euros up to 100
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[17:42] <daedalus_> So the bigger the badget usually the better the antenna regarding quality
[17:42] <daedalus_> Thank you very much mfa298 for your information!!
[17:43] <daveake> RG58 should be inexpensive; no need to pay a lot
[17:45] <daedalus_> Yes i just realise that the high prices refer to 20 meter rg58
[17:52] <mfa298> you probably want to check whatever you buy has the right connectors on it for your antenna and the lora gateway
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[18:00] <daedalus_> Yes that is true.. I see that i need a male jack for the collinear and a male SMA
[18:00] <daedalus_> So from male to male
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[18:13] <daedalus_> Thank you also Dave!!
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[18:35] <daveake> ho ho ho ... http://scotgov.maps.arcgis.com/apps/webappviewer
[18:35] <daveake> Zoom in to see the vehicle names :)
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[20:16] <SpacenearUS> New vehicle on the map: 03rober test_chase - 12https://tracker.habhub.org/#!qm=All&q=rober%20test_chase
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[20:37] <SpacenearUS> New position from 03HIRFW-6 after 0318 hours silence - 12https://tracker.habhub.org/#!qm=All&q=HIRFW-6
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[21:28] <SpacenearUS> New position from 03KF5KMP-8 after 0316 days silence - 12https://tracker.habhub.org/#!qm=All&q=KF5KMP-8
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[23:18] <SpacenearUS> New vehicle on the map: 03M4613065 - 12https://tracker.habhub.org/#!qm=All&q=M4613065
[23:19] <SpacenearUS> New vehicle on the map: 03M2353388 - 12https://tracker.habhub.org/#!qm=All&q=M2353388
[23:19] <SpacenearUS> New vehicle on the map: 03N1740206 - 12https://tracker.habhub.org/#!qm=All&q=N1740206
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[23:33] <SpacenearUS> New position from 03IV3SRD-11 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11
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[23:54] Nick change: laurence_ -> Laurenceb_
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[00:00] --- Wed Jan 17 2018