highaltitude.log.20201105

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[00:15] <SpacenearUS> New vehicle on the map: 03VK5QI-9_chase - 12https://tracker.habhub.org/#!qm=All&q=VK5QI-9_chase
[00:18] <SpacenearUS> New vehicle on the map: 03VK4CU_Chase - 12https://tracker.habhub.org/#!qm=All&q=VK4CU_Chase
[00:30] <SpacenearUS> New vehicle on the map: 03HORUSBINARY - 12https://tracker.habhub.org/#!qm=All&q=HORUSBINARY
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[02:32] <SpacenearUS> New position from 03LU1ESY-11 after 0312 hours silence - 12https://tracker.habhub.org/#!qm=All&q=LU1ESY-11
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[05:23] <SpacenearUS> New vehicle on the map: 03VK4CU1 - 12https://tracker.habhub.org/#!qm=All&q=VK4CU1
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[10:05] <craag> New ublox M10 announced, approx half power consumption of M8 in continuous tracking mode, not as good as M8 powersave mode though.
[10:05] <craag> (docs so far don't mention a powersave mode for M10)
[10:07] <craag> (also is concurrent GPS+GAL+BEI+GLO capable, as M9)
[10:08] <Darkside> GALBEIGLO
[10:08] <Darkside> galibeilglo?
[10:16] <craag> GPS needs a new name with more vowels. Americans would jump at calling it EAGLE or something I'm sure.
[10:17] <Darkside> haha
[10:17] <kokey> BEIGPSGLOGAL
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[11:15] <SpacenearUS> New position from 03AB5SS-14 after 0317 hours silence - 12https://tracker.habhub.org/#!qm=All&q=AB5SS-14
[11:40] <SpacenearUS> New vehicle on the map: 03BZ-TTGO-L - 12https://tracker.habhub.org/#!qm=All&q=BZ-TTGO-L
[11:56] <SpacenearUS> New position from 03N4XWC-2 after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=N4XWC-2
[12:15] _jordan (3eff1cea@234.28-255-62.static.virginmediabusiness.co.uk) joined #highaltitude.
[12:16] <_jordan> Hey I am having this problem where my Raspberry Pi flight computer jams at 8.5km - I am assuming a GPS patch issue but could be something else?
[12:18] <craag> What do you mean by 'jams'?
[12:19] <_jordan> Repeats the same string through the transmitter and also logs to SD card
[12:19] <craag> so loses gps lock but otherwise ok?
[12:20] <_jordan> The string number increments and therefore the CRC at the end is a different hexcode. Does this just mean I lose GPS lock?
[12:21] <craag> It sounds like it - what gps board are you using?
[12:21] <craag> string number incrementing and saving to sd card too means the RPi is still running.
[12:22] <_jordan> Understood. I am using the Max m8 chip on the PITS (blue painted) tracker board
[12:22] <_jordan> with the Black SMA gps extender patch
[12:25] <craag> Hmm the ublox has a 'flight mode' ceiling but that's normally at 13km, and the PITS software is good at dealing with that for you, so it's not that.
[12:25] <_jordan> That's what i thought initially but its just too low for that
[12:26] <craag> You say it's happened more than once at 8.5km? Can you provide some logs for us to look at for clues?
[12:26] <craag> (I need to get back to work, but this sounds like a useful next step so lurkers here can also take a look)
[12:27] <_jordan> okay one sec
[12:27] <SpacenearUS> New position from 03KO6FE-11 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=KO6FE-11
[12:32] <PE2BZ> _jordan you recovered it succesfully ?
[12:32] <_jordan> pfft yeah..
[12:33] <PE2BZ> Congrats! It did not get lock again below 8.5 km did it ?
[12:33] <SpacenearUS> New vehicle on the map: 03LUX - 12https://tracker.habhub.org/#!qm=All&q=LUX
[12:33] <_jordan> On the transmitter side, the transmission literally clean cut
[12:33] <_jordan> like on the way down
[12:34] <daveake> No data or no signal ?
[12:34] <_jordan> No signal this was after the GPS no lock issue
[12:34] <daveake> Did the GPS logging continue ?
[12:34] <daveake> No signal means no power
[12:35] <daveake> The NTX2 will transmit a carrier so long as it's got power
[12:35] <_jordan> GPS logging continued when it hit the ground
[12:35] <_jordan> resumed*
[12:35] <daveake> continued or restarted ?
[12:35] <_jordan> the flight computer did not restart no
[12:35] <daveake> Sounds like bad connection between Pi and PITS then
[12:36] <_jordan> there are no standoffs in the back - only the front
[12:36] <_jordan> could that be it?
[12:36] <daveake> Hitting ground = something physical
[12:36] <_jordan> yeah
[12:37] <_jordan> want me to pastebin the log?
[12:37] <daveake> Nope
[12:37] <_jordan> right, I thought that might help you
[12:37] <daveake> Sounds very much like bad connection, whether that's on Pi or PITS or the connectors I can't say
[12:38] <_jordan> I'll take a look
[12:39] <daveake> Set it up and flex the connection / hit it
[12:39] <_jordan> the PITS board looks flush to the PI board GPIO extender
[12:40] <_jordan> Okay I will try that
[12:42] <_jordan> Nah man - hitting it does not reproduce the issue
[12:48] <PE2BZ> Can you freeze it, with cold spray ? What was the temp at 8.5 km altitude ?
[12:49] <SpacenearUS> New position from 03K6RPT-1 after 0319 hours silence - 12https://tracker.habhub.org/#!qm=All&q=K6RPT-1
[12:49] <_jordan> apparently 222 deg
[12:50] <daveake> Seems unlikely
[12:50] <_jordan> I think that might be heading but in the wrong place
[12:50] <_jordan> does 15.1 sound more likely
[12:50] <daveake> much
[13:41] <SpacenearUS> New position from 03DL1XH-4FSK after 037 days silence - 12https://tracker.habhub.org/#!qm=All&q=DL1XH-4FSK
[14:01] <SpacenearUS> New vehicle on the map: 03W1YA-11 - 12https://tracker.habhub.org/#!qm=All&q=W1YA-11
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[15:14] <SpacenearUS> New position from 03PA1SDB after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=PA1SDB
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[15:44] <SpacenearUS> New vehicle on the map: 03WB0URW-8 - 12https://tracker.habhub.org/#!qm=All&q=WB0URW-8
[16:01] <SpacenearUS> New position from 03BZ-BEACON-L after 037 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BZ-BEACON-L
[16:01] <SpacenearUS> New position from 03BZ-BEACON-R after 0320 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BZ-BEACON-R
[16:07] <SpacenearUS> New vehicle on the map: 03KD0NRC_chase - 12https://tracker.habhub.org/#!qm=All&q=KD0NRC_chase
[16:09] <SpacenearUS> New position from 03PS-80 after 0311 hours silence - 12https://tracker.habhub.org/#!qm=All&q=PS-80
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[18:17] <SpacenearUS> New vehicle on the map: 03YH81LU_chase - 12https://tracker.habhub.org/#!qm=All&q=YH81LU_chase
[18:53] <SpacenearUS> New vehicle on the map: 03Wb0urw-8_chase - 12https://tracker.habhub.org/#!qm=All&q=Wb0urw-8_chase
[19:25] <SpacenearUS> New position from 03BZ-TTGO-L after 037 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BZ-TTGO-L
[19:26] <bertrik> oooh, another LoRa payload?
[19:27] <PE2BZ> Good evening Bertrik, indeed, but HAM use in 434 MHz on the TTGO T-Beam with BME280 sensor added
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[20:46] <Darkside> PE2BZ: i need to get one of those and write some code to make it do 4FSK...
[20:46] <Darkside> because it should totally be possible
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[21:33] <SpacenearUS> New vehicle on the map: 03KC2YVI-11 - 12https://tracker.habhub.org/#!qm=All&q=KC2YVI-11
[21:53] <SpacenearUS> New position from 03LU1ESY-11 after 038 hours silence - 12https://tracker.habhub.org/#!qm=All&q=LU1ESY-11
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[22:49] <SpacenearUS> New position from 03LUX after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=LUX
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[23:01] <SpacenearUS> New vehicle on the map: 0319LHC001 galaxy s10 Robert??_chase - 12https://tracker.habhub.org/#!qm=All&q=19LHC001%20galaxy%20s10%20Robert%3F%3F_chase
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[23:12] <SpacenearUS> New vehicle on the map: 0319LHC006 ROBERT PORTO_chase - 12https://tracker.habhub.org/#!qm=All&q=19LHC006%20ROBERT%20PORTO_chase
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[23:14] <SpacenearUS> New position from 03N4XWC-2 after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=N4XWC-2
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[23:24] <SpacenearUS> New vehicle on the map: 0319GSN006PHONE_chase - 12https://tracker.habhub.org/#!qm=All&q=19GSN006PHONE_chase
[23:24] <SpacenearUS> New vehicle on the map: 0319LR050_chase - 12https://tracker.habhub.org/#!qm=All&q=19LR050_chase
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[00:00] --- Fri Nov 6 2020