highaltitude.log.20190317

[00:04] <SpacenearUS> New vehicle on the map: 03VK5QI-9_chase - 12https://tracker.habhub.org/#!qm=All&q=VK5QI-9_chase
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[02:03] <SpacenearUS> New vehicle on the map: 03WB9SKY-11 - 12https://tracker.habhub.org/#!qm=All&q=WB9SKY-11
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[03:47] <SpacenearUS> New position from 03KC2VMF after 037 hours silence - 12https://tracker.habhub.org/#!qm=All&q=KC2VMF
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[09:18] <Darkside> PE2BZ: ping
[09:20] <SpacenearUS> New vehicle on the map: 03pb0ahx_chase - 12https://tracker.habhub.org/#!qm=All&q=pb0ahx_chase
[09:29] <SpacenearUS> New vehicle on the map: 03VK5NE_chase - 12https://tracker.habhub.org/#!qm=All&q=VK5NE_chase
[09:36] <PE2BZ> Darkside Hi!
[09:37] <Darkside> PE2BZ: i should have some imet upgrades for you soonish
[09:37] <Darkside> can you make sre yuo are up to date please
[09:38] <PE2BZ> Does the normal branch include the M10 also ?
[09:38] <PE2BZ> Currently using the test for the M10´s which came to the Netherlands last week
[09:39] <PE2BZ> Radiosonde Auto-RX Status Version: 20190204-beta
[09:39] <Darkside> yes it does
[09:39] <Darkside> has for ages
[09:39] <Darkside> you're over a month out of date :-)
[09:39] <PE2BZ> Happy with that ;-) it´s not the xyl :-)
[09:40] <Darkside> yeah we will be blocking telemetry from old versions soon
[09:40] <Darkside> so we can start making changes to the telemetry frormats
[09:41] <PE2BZ> 42 files changed, 3043 insertions(+), 521 deletions(-)
[09:41] <Darkside> i've already made some changes to the RS41 telemetry format, including burst kill timer data
[09:41] <Darkside> you will also need to re-build all the binaries
[09:41] <Darkside> ( ./build.sh )
[09:42] <Darkside> imet support isnt complete in that version yet
[09:42] <Darkside> but shouldnt be too far away
[09:42] <Darkside> maybe next week
[09:43] <PE2BZ> You have till tuesday around 10 UTC ;-)
[09:43] <Darkside> yeeeah
[09:43] <PE2BZ> or another week :-)
[09:44] <Darkside> yupp
[09:44] <Darkside> do you know if they are the 'new' imet sondes, or the old ones?
[09:44] <PE2BZ> Radiosonde Auto-RX Status Version: 20190316
[09:44] <PE2BZ> the new ones
[09:44] <Darkside> ok cool
[09:44] <Darkside> i wont be supporting the old ones, too hard
[09:44] <Darkside> the new ones are a PITA as it is
[09:44] <Darkside> they dont transmit a serial number
[09:45] <PE2BZ> They appear to have 3 types over there, old iMet, (the 100 kHz wide) new iMet and DFM but there is no ¨system¨ in what they launch. Every now and then they fly on tuesday ánd wednesday.
[09:46] <Darkside> oh hm
[09:46] <Darkside> 100 khz wide imet..
[09:46] <PE2BZ> So I will turn my antenne to Belgium monday evening
[09:46] <Darkside> i cant support that
[09:46] <PE2BZ> Don´t :-)
[09:46] <Darkside> only the new narrowband one
[09:46] <Darkside> 1200 baud AFSK
[09:47] <Darkside> which unfortumately means a ~10db performnce hit for the same TX power
[09:48] <PE2BZ> Does that explain why the reception of the M10 is better as expected ? Even with antenna 90 degrees from the M10 (400 km distance) it still kept being received ?
[09:49] <Darkside> M10 is weird
[09:49] <Darkside> should be about as performant as the RS41
[09:51] <PE2BZ> Indeed, better as the DFM types. But last thursday there appeared an RS41 at 17 km distance from here and I had to convince auto_rx to let go of the M10 at 400 km distance....
[09:51] <Darkside> add another SDR :-)
[09:52] <PE2BZ> Would you expect to have any interaction between the webbrowser and the auto_rx software ? Something like a ¨forget this sonde for xx minutes¨ and restart scanning ?
[09:52] <Darkside> urgh
[09:52] <Darkside> i was considering it
[09:52] <Darkside> but then ill need to implement authentication stuff
[09:52] <Darkside> some people have their auto_Rx web interfaces exposed to the web
[09:53] <PE2BZ> Like me :-)
[09:53] <PE2BZ> I am afk, shaving time
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[11:05] <dfm> darkside: updated imet1rs to return pck-crc-check, so in a frame you can check individual crcs.
[11:06] <dfm> so pck-counter seems to have several possible flavors. or it the old imet-1-rs was just different.
[11:08] <dfm> for imet4 or imet1rs with more pcks (e.g. ozone) the frame processing should be made more flexible and extended. have to look if i find ozone-imet1rs recording (the imet1rs was used for ozone-sound and other research alot) so i don't know very much about imet1rs and if the pcks always come in the same order, if there is a systematic ording...
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[11:15] <Lahti> Darkside: my 24h raspberry program went broken, had to install everything again, now is the latest auto_rx
[11:17] <Darkside> ok
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[11:37] <SpacenearUS> New position from 03BSS18 after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=BSS18
[11:50] <Darkside> PE2BZ: imet support added in the testing branch :-)
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[12:07] <PE2BZ> Darkside testing says ¨allready up to date¨ and shows 20190204-beta ?
[12:10] <Darkside> thats definitely not right
[12:10] <PE2BZ> Could be my ¨testing¨ ia a Viproz version ?
[12:10] <Darkside> uh oh
[12:10] <Darkside> yeah
[12:10] <Darkside> you might be on his fork
[12:11] <PE2BZ> Let me remove that ;-)
[12:11] <Darkside> run: git remote -v
[12:11] <PE2BZ> pi@raspberrypi:~/radiosonde_auto_rx/testing $ git remote -v
[12:11] <PE2BZ> origin https://github.com/projecthorus/radiosonde_auto_rx.git (fetch)
[12:11] <PE2BZ> origin https://github.com/projecthorus/radiosonde_auto_rx.git (push)
[12:11] <Darkside> hmm
[12:11] <Darkside> that looks ok
[12:12] <Darkside> wait why is there a testing directory
[12:12] <Darkside> there shouldnt be a testing directory...
[12:13] <PE2BZ> I made a testing directory, downloaded a zip file to that to be able to run either the normal branch or the testing branch
[12:13] <Darkside> ah
[12:13] <Darkside> right, dont do that
[12:13] <Darkside> :P
[12:13] <PE2BZ> To late ;-)
[12:13] <Darkside> run off the main repo
[12:13] <Darkside> and if you want to run the testing branch, you run: git checkout testing
[12:13] <Darkside> thats how we're handling new features now
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[12:14] <PE2BZ> I removed the testing directory and all what was inside.
[12:14] <PE2BZ> pi@raspberrypi:~/radiosonde_auto_rx $ git checkout testing
[12:14] <PE2BZ> Already on 'testing'
[12:14] <PE2BZ> Your branch is up-to-date with 'origin/testing'.
[12:15] <Darkside> git pull ?
[12:15] <Darkside> oh, thats the message you get when running that i guess
[12:16] <PE2BZ> indeed
[12:16] <Darkside> ok
[12:16] <Darkside> in that case, copy out your station.cfg file
[12:16] <Darkside> wipe the diretory, and re- git clone it
[12:16] <Darkside> somethign is very wrong there
[12:16] <Darkside> not sure how
[12:19] <PE2BZ> all removed, now cloning. after that switch to testing with git checkout testing and git pull and after that ./build.sh ?
[12:19] <Darkside> yup
[12:19] <Darkside> and your previous config file should be fine
[12:19] <Darkside> i don tthink i've added any new parameters
[12:20] <PE2BZ> Now the magic line ¨building iMet demodulator¨ appears :-)
[12:21] <F5MVO> Hello radiosonde_auto_rx users
[12:21] <Darkside> hehe
[12:21] <Darkside> and you should be on 20190317-beta
[12:22] <PE2BZ> Hello, is it me your looking for :-)
[12:22] <Darkside> nup
[12:23] <Darkside> i wanted the other ben
[12:23] <PE2BZ> 20190317-beta confirmed
[12:23] <Darkside> sweet
[12:23] <F5MVO> no, just a question, radiosonde_auto_rx use geodesic altitude correction ?
[12:23] <PE2BZ> You don´t understand French :-) Or is F5MVO also a ¨Ben¨
[12:23] <Darkside> F5MVO: no, it uses whatever the radiosonde reports
[12:24] <Darkside> which is likely going to be WGS84 datum altitude
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[12:25] <F5MVO> in static radiosonde i have + 48m on web site ?
[12:27] <PE2BZ> F5MVO a Watnall sonde landed in a tree yesterday, about 15 m altitude (the 12 m pole was 3 m short) and all 3 decoders (RS41 tracker, SM and auto_rx reported the same altitude, 48 m.
[12:27] <Darkside> welcome to WGS84
[12:28] <Darkside> 0m is not ground level
[12:28] <Darkside> 0m is not sea level
[12:28] <Darkside> except on 'average'
[12:32] <SpacenearUS> New position from 03U3B-25 after 0321 hours silence - 12https://tracker.habhub.org/#!qm=All&q=U3B-25
[12:32] <F5MVO> here i am at 78m asl, and with static radiosonde at home i have about 126m on web site https://tracker.sondehub.org
[12:35] <Darkside> yes
[12:35] <Darkside> this is not surprising
[12:37] <Darkside> http://ozreport.com/docs/MarkGrahamarticle.pdf
[12:37] <Darkside> check the map on the bottom of the first page
[12:40] <F5MVO> if i use a modify line like this, the altitude is correct on tacker page : int(telemetry['alt']-48), # Round to the nearest metre.
[12:41] <Darkside> please dont do hacks like that
[12:41] <Darkside> if more than one user is uploading positions, its going to mess things up
[12:42] <Darkside> that offset you are using is not going to be valid everywhere
[12:42] <F5MVO> ok i return back
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[13:04] <dfm> F5MVO: GPS data gives position over some ellipsoid (approximating earth) or sometimes even less (rs41/ecef-coordinates). if you want height over geoid at your location, you can check e.g. https://geographiclib.sourceforge.io/cgi-bin/GeoidEval
[13:05] <Darkside> dfm is like the NSA. always watching
[13:05] <dfm> This is the nice thing about GPS data, it is more digital. If you try to relate it to geoid, it is more like analog PTU data...
[13:06] <F5MVO> ok i lookat ozreport and geographic after
[13:06] <dfm> I think, some chips also have some rudimentary geoid approximation, but it makes the data less comparable.
[13:08] <dfm> Darkside: I think it is not the first time I missed some details in your (you and Michael?) discussion, this time iMet.
[13:09] <dfm> Probably a language thing, you are lucky everyone tries to write/read english... ;)
[13:09] <Darkside> hehe
[13:09] <Darkside> anyway, i've added initial imet support to auto_rx
[13:09] <dfm> So keep in mind, since my english decoder has some flaws, I need a clean and simple signal ;)
[13:09] <Darkside> i'm going to get PE2BZ to give it a go
[13:10] <Darkside> ID is being generated by SHA256 (power on time + frequency)
[13:11] <dfm> The site in Belgium that is close to him launches DFM-09 every night, and on tuesdays (not always) or sometimes wednesdays or mondays, also around 10-11 UTC an imet.
[13:11] Action: PE2BZ tries not to disappoint Darkside next tuesday :-)
[13:11] <Darkside> hehe
[13:11] <dfm> It was the imet-1-ab until recently (and regularely), not it is often the new imet-4.
[13:11] <Darkside> I'll also contat Hoshen 4Z7HKA
[13:12] <Darkside> as it appears they use imet sondes in israel
[13:12] <dfm> So the imet-1-rs or imet-1-rsb is also old, looks like the imet-1-ab, only it uses this open format and bell202.
[13:13] <dfm> I guess in the us there are locations where they use it.
[13:13] <Darkside> yes, i have one of the imet-1 sondes that uses the bell 202 format
[13:13] <Darkside> and an imet-4
[13:14] <dfm> The imet-1-rs, i think rs stands for research, is easy to use with external/xdata equipment.
[13:15] <Darkside> ok, i should go to bed... getting late here
[13:16] <dfm> So taking the difference between gps-time and pck-count is a good idea. So I hope the pck-count is also a frame count nowadays with imet4. The imet-1-rs I recorded once, counted literally every packet...
[13:16] <dfm> So, checking both crc's should be mandatory.
[13:17] <Darkside> yes - thats what i have done
[13:17] <dfm> ok, good night
[13:17] <Darkside> https://github.com/projecthorus/radiosonde_auto_rx/blob/testing/imet/imet1rs_dft.c#L480
[13:17] <PE2BZ> good night !
[13:18] <Darkside> gps_valid and ptu_valid are flags i set based on the CRC passing or failing
[13:18] <Darkside> i only emit a JSON line if both have passed
[13:18] <dfm> ok, include it in the json-struct, thats ok
[13:19] <dfm> i didn't have a gpx-struct as it was called in the other decoders.
[13:19] <Darkside> yeah i ended up making a struct to hold all the output data
[13:19] <dfm> sp the pck-functions should return something anyway, so crc-check is a the first thing.
[13:23] <F5MVO> good night, thanks for uor joob
[13:24] <F5MVO> good night, thanks for your job, sorry
[13:25] <dfm> probably he already fell asleep...
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[14:34] <SpacenearUS> New vehicle on the map: 03W5LCY-7 - 12https://tracker.habhub.org/#!qm=All&q=W5LCY-7
[14:50] <SpacenearUS> New position from 03E3 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=E3
[14:54] <SpacenearUS> New vehicle on the map: 03G8KHW_Tab2_chase - 12https://tracker.habhub.org/#!qm=All&q=G8KHW_Tab2_chase
[14:56] <SpacenearUS> New vehicle on the map: 03SOLAR-WL - 12https://tracker.habhub.org/#!qm=All&q=SOLAR-WL
[15:12] <SpacenearUS> New position from 03U3S30 after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=U3S30
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[15:58] <SpacenearUS> New vehicle on the map: 03KI5CSI-5 - 12https://tracker.habhub.org/#!qm=All&q=KI5CSI-5
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[16:17] <SpacenearUS> New vehicle on the map: 03VA6SEB-11 - 12https://tracker.habhub.org/#!qm=All&q=VA6SEB-11
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[19:22] <PE2BZ> My least heavy so far :-) https://imgur.com/uZjsk0a
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[20:04] <SA6BSS-Mike> PE2BZ: making progress :)
[20:05] <PE2BZ> Loosing weight ;-)
[20:06] <PE2BZ> Did switch to TX in house behind isolating window late afternoon. Will hang out tomorrow !
[20:06] <PE2BZ> Bye for now
[20:07] <SA6BSS-Mike> c u
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[21:56] <SpacenearUS> New vehicle on the map: 03KG7SSH-11 - 12https://tracker.habhub.org/#!qm=All&q=KG7SSH-11
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[00:00] --- Mon Mar 18 2019