highaltitude.log.20190119

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[00:12] <Viproz> Is someone good at reverse engineer data packets from RS here ? I have 2000 lines of some RS packets representing an aux payload that I have no clue how to decrypt
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[00:45] <Darkside> Viproz: probably a ozone sonde
[00:45] <Darkside> theres something in the dxlaprs code about them
[00:46] <Darkside> the aux data isbusually a set of adc readings, ut to convery that to real values you need calibration factors
[00:46] <Darkside> which are written on the ozone sensor
[00:46] <Darkside> theres a manual online
[00:48] <nigle> I got hold of an old RS many years ago, the calibration data was on a short strip of punched paper tape!
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[07:30] <SA6BSS-Mike|2> PE2BZ: Digitalinfo.dk:5555
[07:30] <SA6BSS-Mike|2> http://predict.habhub.org/#!/uuid=4a266c623057418bfa3f8e984f70c36a116274f4
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[10:03] <PE2BZ> Mike tnx info !
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[11:05] <SpacenearUS> New vehicle on the map: 03P09908-12 - 12https://tracker.habhub.org/#!qm=All&q=P09908-12
[11:06] <Viproz> Darkside, Yeah but I expected some kind of calibration data and some king of voltage reading but it's more complex than that, it doesn't send the data every frame, sometimes it sends something different, I think there is an ID that tells you what the data is but it changes too much or too little in between data frames in my opinion
[11:06] <Viproz> https://github.com/rs1729/RS/files/2774937/auxdatYES.txt
[11:08] <Viproz> I'll try to see in dxl code and maybe email him about it
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[11:19] <Viproz> It doesn't look like dxl is decoding the aux data for the M10
[11:33] <Darkside> ahh M10
[11:33] <Darkside> right
[11:33] <Darkside> i was thinking the RS91/RS41
[11:40] <Viproz> Yeah I'm not done with the M10 yet, and this one was sent to the factory so it may even be a test of something not really used yet (although the RS carrying the payload was from 2016)
[11:43] <Viproz> Also do you know how the websites behave if we send them two messages for the same frame with different data ? I was thinking about implementing some kind of probability where if the gps lat lon alt is coherent with the previous frames it could be sent even if the CRC is wrong, this would reduce the S/N ratio needed by a long shot, manually I can always see which data is good and which data is wrong quite a bit before I get one good CRC frame
[11:44] <Viproz> The issue with that is that it could, sometimes, send some slightly incorrect data to a website (if the last byte of the gps data is corrupted it would make for a small change that would be difficult do detect)
[11:46] <Darkside> yeah i would want to seriously avoid frames with different data and the same sequence number
[11:46] <Darkside> i dont know how the tracker will react
[11:46] <Darkside> i would really only want to upload data with a valid CRC
[11:57] <SA6BSS-Mike|2> PE2BZ: its vissible on the waterfall over Brians sdr
[11:59] <PE2BZ> Noticed the traces with the right shift and duration, however every now and then a strong signal appears and seems to block it.
[11:59] <SA6BSS-Mike|2> yes . lots of ism signal, some realy strong
[12:00] <SpacenearUS> New vehicle on the map: 03F5APQ_chase - 12https://tracker.habhub.org/#!qm=All&q=F5APQ_chase
[12:01] <SA6BSS-Mike|2> $$$$$BZ=TG0O<5578,11:5y:2155.50<3,~60$98$18P0,!3ccc?@lV0*|
[12:01] <PE2BZ> signal is stronger (wider) now, hoping for decodes
[12:01] <PE2BZ> You are fast :-)
[12:01] <SA6BSS-Mike|2> :) , at work, IL be back in 2 h l8er
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[12:29] <SpacenearUS> New position from 03BZ-TCXO after 036 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BZ-TCXO
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[13:03] <PE2BZ> 6 hours of silence ? Desperately transmitting above the NorthSea ;-)
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[13:34] <PE2BZ> OZ7EMA_ Hello
[13:35] <PE2BZ> Can you receive RTTY at 434.660 :-)
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[14:40] <Viproz> PE2BZ, what's your payload by the way ?
[14:41] <PE2BZ> Something like this ;-) https://photos.app.goo.gl/czLJCiddMpdjLPFJ6
[14:44] <PE2BZ> Should run till about 19:00 EU local time
[15:28] <PE2BZ> 2.11 Volt and still running
[15:35] <SA6BSS-Mike|2> was it the bobo pvc balloon you used?
[15:37] <PE2BZ> No, it appeared like a qualatex but no silver
[15:38] <SA6BSS-Mike|2> if you find the link it would be intering
[15:38] <PE2BZ> https://www.dropbox.com/s/opxxqvmjthf17sl/go_float_liftoff.jpeg?dl=0
[15:38] <PE2BZ> I am the guy at the left ;-)
[15:38] <SA6BSS-Mike|2> hehe, looks like the ballon Im using
[15:39] <SA6BSS-Mike|2> https://www.dropbox.com/s/7f80t633hfj1jew/IMG_20170922_184430.jpg?dl=0
[15:39] <SA6BSS-Mike|2> https://www.dropbox.com/s/58plvg26y4ea4ix/IMG_20170924_201442.jpg?dl=0
[15:40] <SA6BSS-Mike|2> managed to get one up yo 11400 with verry light payload under
[15:41] <PE2BZ> That´s the one!
[15:42] <PE2BZ> 2.03 Volt and it´s over....
[15:42] <PE2BZ> If I remember right I copied the link from you for the balloons
[15:42] <SA6BSS-Mike|2> ok
[15:42] <SA6BSS-Mike|2> great that Brian set up his radio for us!
[15:43] <PE2BZ> I did send him some image from the RX and signal on the fldigi waterfall :-)
[15:44] <SA6BSS-Mike|2> so he sees whats he is missing :)
[15:45] <PE2BZ> Excactly ;-)
[15:46] <PE2BZ> He mentioned it´s the middle of the repeater band over there. Is it also repeaterband in Sweden ?
[15:51] <SA6BSS-Mike|2> yes, its start at 434.600
[15:52] <SA6BSS-Mike|2> but that part is quite clear over here, not that many 70cm repeater in this area
[15:52] <SA6BSS-Mike|2> https://www.dropbox.com/s/c8t899t0fa3jupy/IMG_20190119_164950.jpg?dl=0
[15:53] <SA6BSS-Mike|2> should probably get some of the oldest rtty only trackers ready and let go to clear inventory :)
[15:53] <PE2BZ> the small balloons are cheap and need little HE
[15:54] <SA6BSS-Mike|2> realy cheap, like 10 for 13 dol or something
[15:54] <SA6BSS-Mike|2> works much better then the qualatex
[15:54] <SA6BSS-Mike|2> for long duratation flights
[15:55] <PE2BZ> The RS41 on solar problem is still not fixed. Need to add a mosfet with treshold on the solar panel power to turn it on reliable
[15:56] <SA6BSS-Mike|2> yes, they do not like unstable voltages/current during startup
[15:56] <PE2BZ> But a nice collection you have ;-)
[15:56] <SA6BSS-Mike|2> tnx :)
[15:56] <PE2BZ> No, and supercaps with low Ri are not cheap.
[15:57] <SA6BSS-Mike|2> I will look into UVLO - under-voltage lockout
[15:58] <PE2BZ> How do you use the SMT paste ? Push a screwdriver in the back like I do ?
[15:58] <SA6BSS-Mike|2> if that could wokr
[15:58] <SA6BSS-Mike|2> aaa battery is great to do that
[15:59] <SA6BSS-Mike|2> looks like you tracker gave up
[16:00] <PE2BZ> Nice, it fits !Did you add the needles yourself ? I bought it, but nothing for the output other then the 3 mm outlet ?
[16:00] <PE2BZ> 27 hours and 10 minutes. Not bad ;-)
[16:00] <SA6BSS-Mike|2> yes, got a bunsh of differnt needels of aliexpress
[16:00] <PE2BZ> ¨ready to fit¨ ?
[16:00] <SA6BSS-Mike|2> yes
[16:01] <PE2BZ> If you can find that link ?
[16:01] <SA6BSS-Mike|2> hang on...
[16:01] <PE2BZ> I see a basp programmer, and a lot of missing GPS modules ;-)
[16:04] <PE2BZ> After enjoying Brains Airspy I did install one myself today. At the work location we decided to stop the Amateru Television repeater so we attached the 13 cm slot antenna with downconverter to a cheap dongle. Yesterday evening we received a beacon from Danmark also at 2320 MHz
[16:06] <SA6BSS-Mike|2> here is the kit https://www.ebay.co.uk/itm/Liquid-Dispenser-Solder-Paste-Adhesive-Glue-Syringe-Dispensing-Needle-Tips-/222049931838?hash=item33b335123e
[16:08] <SA6BSS-Mike|2> yes about the modules, you kind of build acople, then, you think of another design you would try, leve on intact then the others donates their gps:s to the new design , and so on ...
[16:08] <PE2BZ> Nice ! Is a lot easier ....
[16:08] <chris_99> what's the green parts with the tubing for?
[16:08] <SA6BSS-Mike|2> the idea was I should get some sort of air pressure and start the compressor with a foot pedal.
[16:09] <SA6BSS-Mike|2> like an aquarium air pump
[16:09] <SA6BSS-Mike|2> it fit on the solder paste
[16:09] <SA6BSS-Mike|2> tube
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[16:18] <chris_99> cool, so the compressed air directly pushes the paste out? without needing a plunger?
[16:19] <chris_99> oh wait, i just noticed there are piston things
[16:22] <russss> you can get the units from china pretty cheaply. https://www.aliexpress.com/item/220V-AD-982-Semi-Auto-Glue-Dispenser-PCB-Solder-Paste-Liquid-Controller-Dropper-Fluid-dispenser/32720970790.html
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[16:23] <russss> though that one doesn't have a compressor in
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[16:34] <PE2BZ> hmmm. Looked nice till your last message russss ;-)
[16:35] <russss> the advantage of those things is that they have a handy pressure regulator and venturi device in to generate a vacuum to suck the paste back when you stop dispensing
[16:37] <russss> the foot pedal is quite useful
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[17:20] <Viproz> You actually make and reflow the PCB boards for your launches ?
[17:25] <russss> certainly some people do yes
[17:32] <Viproz> This makes me want to find a good radio club with people doing HAB launches even more now, too bad the requirement are so heavy about HAB launches in France
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[18:55] <Viproz> https://imgur.com/a/6YB8urM Does this look like an ozone plot of the atmosphere for someone who has plotted it from other RS ??
[18:55] <Viproz> -1?
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[20:42] <SpacenearUS> New position from 03BUZZ after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=BUZZ
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[21:00] <OZ1SKY_Brian> PE2BZ Hi Ben, so it ran out of batt?
[21:01] <PE2BZ> Boehoeeeeee
[21:01] <PE2BZ> Yes after only 27 hours and 10 minutes ;-)
[21:01] <PE2BZ> Your SDR worked great !! Big thanks !!
[21:01] <SpacenearUS> New vehicle on the map: 03PC4L-chase - 12https://tracker.habhub.org/#!qm=All&q=PC4L-chase
[21:02] <OZ1SKY_Brian> your welcome, just got home, not in time i see :-)
[21:02] <PE2BZ> No sorry, I am clueless to point you to the landing spot ;-)
[21:03] <OZ1SKY_Brian> yeah thats not going to happen :-)
[21:03] <PE2BZ> Will start measuring the current of Maduino, maduino with TX and GPS tomorrow (have 3 left atm) to see if I can save a bit more.
[21:03] <OZ1SKY_Brian> lucky your freq is just in the middle of the repeaters here
[21:04] <PE2BZ> https://photos.app.goo.gl/czLJCiddMpdjLPFJ6
[21:04] <PE2BZ> That´s what you should be looking for ;-)
[21:04] <OZ1SKY_Brian> even though Denmark is all, thats too small to look for
[21:06] <OZ1SKY_Brian> whats with the twisted areal ?
[21:07] <PE2BZ> two wires in parallel, to go for a bit sturdyness 1,5 mm2 was to heavy and I had complaints about the use of the RS41 antenna wire moving to much in the wind
[21:07] <OZ1SKY_Brian> ah ok i see
[21:08] <PE2BZ> The arduino is set BOD level to 1.8 V but the gps needs 2.4 or more so the stepup converter is there for the gps receiver
[21:08] <PE2BZ> Might test the uputronic gps tomorrow for current consumption also
[21:08] <OZ1SKY_Brian> did the gps give up before the rtty died?
[21:09] <OZ1SKY_Brian> btw never seen such a long float at 1½km alt :-)
[21:10] <PE2BZ> on the desk, when running the battery test, with the BOD set to 1.8 and no stepup between the GPS indeed, which made the maduino re-transmit the last gps position for 2 hours before dying also
[21:10] <PE2BZ> We like our records :-)
[21:10] <OZ1SKY_Brian> hehe yeah
[21:12] <PE2BZ> The power switch did not fly ;-) On the weighing scale at the left, the 2 red wires, that was the power switch
[21:13] <PE2BZ> But the antenna wire was cut to 1/4 wave and RX was ok 20 - 30 km out of range of the receivers.
[21:16] <OZ1SKY_Brian> yes i did see you had a lock before its was LOS
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[21:17] <PE2BZ> And the LoRa signals also came in booming at your location. Any plans to set something up? The maduino board with lora 433 module is available for about 20 Euro including shipment, only programming needed ;-)
[21:18] <PE2BZ> https://www.makerfabs.com/index.php?route=product/product&product_id=439
[21:18] <PE2BZ> Windows software from Dave Akerman for rx
[21:18] <PE2BZ> And you can program it to send RTTY and LoRa also
[21:18] <PE2BZ> But I am afk for tonight, show the xyl how I look ;-)
[21:19] <PE2BZ> thanks again and cu later
[21:19] <OZ1SKY_Brian> yes i have to look into that lora sometime. cul Ben
[21:20] <PE2BZ> https://www.dropbox.com/s/4qi5q5oqynlpxjp/VID_20190118_133225.mp4?dl=0
[21:20] <PE2BZ> Launch video also some excitement.
[21:20] <PE2BZ> Bye !
[21:20] <OZ1SKY_Brian> thanks, bye
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[21:33] <SA6BSS-Mike|2> PE2BZ: do you have the code to marduino that you flow today.
[21:33] <SA6BSS-Mike|2> ?
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[22:49] <Ian_> Great flight Ben. It's always a bit of a worry when the balloon seems to lose a little altitude just after you release it, before recovering for yet another spectacular flight . . . :)
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[00:00] --- Sun Jan 20 2019