highaltitude.log.20180729

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[00:12] <SpacenearUS> New vehicle on the map: 03VK5HS-9_chase - 12https://tracker.habhub.org/#!qm=All&q=VK5HS-9_chase
[00:29] <SpacenearUS> New vehicle on the map: 03RS_L3813621 - 12https://tracker.habhub.org/#!qm=All&q=RS_L3813621
[00:38] <SpacenearUS> New vehicle on the map: 03RS_N2350320 - 12https://tracker.habhub.org/#!qm=All&q=RS_N2350320
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[01:10] <SpacenearUS> New vehicle on the map: 03RS_N3640308 - 12https://tracker.habhub.org/#!qm=All&q=RS_N3640308
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[02:01] <SpacenearUS> New vehicle on the map: 03V3_JC_chase - 12https://tracker.habhub.org/#!qm=All&q=V3_JC_chase
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[02:01] <SpacenearUS> New vehicle on the map: 03VkK5PE_chase - 12https://tracker.habhub.org/#!qm=All&q=VkK5PE_chase
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[02:03] <SpacenearUS> New vehicle on the map: 03vk5wtf_chase - 12https://tracker.habhub.org/#!qm=All&q=vk5wtf_chase
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[02:46] <SpacenearUS> New vehicle on the map: 03VK5PE_chase - 12https://tracker.habhub.org/#!qm=All&q=VK5PE_chase
[03:27] <SpacenearUS> New vehicle on the map: 03V3Jota_chase - 12https://tracker.habhub.org/#!qm=All&q=V3Jota_chase
[03:28] <SpacenearUS> New vehicle on the map: 03V3-Valdi_chase - 12https://tracker.habhub.org/#!qm=All&q=V3-Valdi_chase
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[04:25] <SpacenearUS> New position from 03V3 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=V3
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[05:40] <SpacenearUS> New vehicle on the map: 03RS_N4440005 - 12https://tracker.habhub.org/#!qm=All&q=RS_N4440005
[05:51] <SpacenearUS> New vehicle on the map: 03V3MazingerZ_chase - 12https://tracker.habhub.org/#!qm=All&q=V3MazingerZ_chase
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[06:00] <SpacenearUS> New position from 03WB8MSJ-3 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=WB8MSJ-3
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[07:21] <SpacenearUS> New position from 03XX after 0318 days silence - 12https://tracker.habhub.org/#!qm=All&q=XX
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[08:07] <PE2BZ> !track wb8msj-3
[08:07] <SpacenearUS> 03PE2BZ: Here you go - 12https://tracker.habhub.org/#!qm=All&q=wb8msj-3
[08:07] <PE2BZ> !payload wb8msj-3
[08:07] <SpacenearUS> 03PE2BZ: Can't find a flight doc matching your query
[08:07] <PE2BZ> !dial wb8msj-3
[08:07] <SpacenearUS> 03PE2BZ: 03WB8MSJ-3 is over APRS. 144.8Mhz EU/Russia/Africa, 144.39Mhz USA, 144.64Mhz China
[08:08] <Darkside> PE2BZ: had a RS41 fail in an interesting way today
[08:08] <Darkside> https://twitter.com/darksidelemm/status/1023450732605857793
[08:08] <Darkside> transmit frequency went way off reservation
[08:08] <Darkside> have you seen that before?
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[09:02] <PE2BZ> Morning Darkside (or even Good Afternoon) No, never seen this on an RS41, either in RS41 nor in RTTY mode
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[09:03] <PE2BZ> Have seen this on DFM radiosondes when flight duration was longer as battery life, but it recovered before landing so no battery problem assumed.
[09:04] <PE2BZ> Was it a 4fsk by the way ?
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[09:09] <Darkside> PE2BZ: yes
[09:09] <Darkside> and the way i attached the strin gto the payload might have contributed
[09:10] <Darkside> as in, compromised the insulation
[09:10] <PE2BZ> You fly with no parachute I noticed this morning ? Not anything to do with the frequency drift
[09:11] <Darkside> no
[09:11] <Darkside> the drift started on the ascent
[09:13] <PE2BZ> I have flown bare PCB RS41 boards, with half a 6 V camera battery unisolated with only one time a GPS problem, but never frequency drifting. Energiser batteries ? (And not the recycled ones, the Green series is heavier and less resistant to cold ...)
[09:14] <Darkside> yes, energizer lithium AAs
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[09:17] <PE2BZ> I placed one on the roof, with remote power and power button, I´ll fire it up and reduce the power and see if something like this happens.
[09:17] <Darkside> i managed to replicate it by putting a bare RS41 PCB into the freezer
[09:19] <PE2BZ> You should try that again, with isolated batteries ?
[09:21] <PE2BZ> Now if somehow I could find the barepcb data in the habitat....
[09:24] <PE2BZ> This one http://x-f.lv/dev/habitat-graphs/payload/PB0AHX/97bc4da9eb501aab370792e984797150#g/temperature_internal,altitude
[09:25] <PE2BZ> 5 degrees radio chip temperature @ 22 km altitude, bare PCB with 2 energizers in very thin bubble foil taped to the PCB
[09:26] <Darkside> yeah i dunno whats going on
[09:26] <Darkside> i think its some combination of cold and condensation on thepcb
[09:26] <Darkside> i suspect it did fly through a cloud too
[09:29] <PE2BZ> Can I shoot a ¨why 4fsk ¨ question ?
[09:30] <Darkside> 3db improvement ofer 2FSK at the cost of a little bit of bandwidth
[09:30] <Darkside> and theres plenty of bandwidth to go around
[09:30] <PE2BZ> I did read the test results :-)
[09:31] <PE2BZ> But do you know if the same goes for, for example, contestia modes ?
[09:31] <Darkside> depends
[09:31] <Darkside> the problem with those modes is they require very specific freuqency shifts and baud rates
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[09:31] <Darkside> plus they are slooooooowwww
[09:32] <PE2BZ> I get a lot of questions about ¨bringing a new mode to the Netherlands¨ giving a lager range but barely listeners in Germany, our main public is over here in Holland and our friend in UK and Belgium
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[09:33] <PE2BZ> slooooooow but bigger audience allready. We are a small country ;-)
[09:33] <Darkside> well too bad ?
[09:33] <Darkside> i guess
[09:33] <Darkside> we developed 4FSK so we could get fast updates reliably on our flights
[09:34] <Darkside> we were getting annoyed with long times between packets,and how shit RTTY was when chasing
[09:34] <Darkside> and instead of using a text-based mode (which is horribly inefficient), we decided to do our own binary mode from scratch
[09:35] <PE2BZ> By the way, did you notice this allready ? With 2 receivers ? 2018-07-28 20:15:31,660 INFO: Habitat - Upload conflict.. retrying.
[09:35] <PE2BZ> 2018-07-28 20:15:31,888 INFO: Habitat - Uploaded sentence to Habitat successfully
[09:35] <Darkside> the upload conflict message should probably be at the DEBUG level, notINFO
[09:35] <Darkside> will fix that
[09:35] <PE2BZ> thanks
[09:35] <Darkside> upload conflict is something the habitat db reports when multiple people are uploading packets
[09:37] <PE2BZ> And do you HORUSBINARY flights sent continuously or on interval base ?
[09:37] <Darkside> there's some short gaps
[09:37] <Darkside> the packet is a bit over 1 second
[09:37] <Darkside> well
[09:38] <Darkside> its *transmitting* continuously, but there's only meaningful data sent every few seconds - in between is idle tones
[09:39] <PE2BZ> My neighbours noticed that allready.... Volkswagen does have very cheap remote key receivers....
[09:39] <Darkside> change your frequency?
[09:40] <PE2BZ> You know those cheap receivers locking to the strongest signal ? Either 432.625 up to 435 MHz will block them.
[09:40] <Darkside> sad
[09:43] <PE2BZ> Different but same story, at my job we had a new Tetra portable radio station, @ 428 MHz which was turned off for 1,5 year because of the cars on the parking roof would not open anymore. The local authorities in the end did measure field strength at all parking places and we where way below the law so the cars had to park elsewhere. 1.5 years of arguing...
[09:43] <PE2BZ> Keep your customers as friends....
[10:36] <Darkside> dbrooke: cheers :P
[10:36] <Darkside> dbrooke: realistically most of the sdrs on that list have crap stability anyway
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[11:18] <SpacenearUS> New vehicle on the map: 03RS_N3910365 - 12https://tracker.habhub.org/#!qm=All&q=RS_N3910365
[11:19] <SpacenearUS> New vehicle on the map: 03RS_N3930475 - 12https://tracker.habhub.org/#!qm=All&q=RS_N3930475
[11:24] <SpacenearUS> New vehicle on the map: 03RS_N3640340 - 12https://tracker.habhub.org/#!qm=All&q=RS_N3640340
[11:32] <SpacenearUS> New position from 03IV3SRD-11 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11
[11:37] <SpacenearUS> New vehicle on the map: 03RS_N4410965 - 12https://tracker.habhub.org/#!qm=All&q=RS_N4410965
[11:42] <SpacenearUS> New vehicle on the map: 03RS_P1710589 - 12https://tracker.habhub.org/#!qm=All&q=RS_P1710589
[11:46] <SpacenearUS> New vehicle on the map: 03RS_L3834075 - 12https://tracker.habhub.org/#!qm=All&q=RS_L3834075
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[12:20] <SpacenearUS> New vehicle on the map: 03delta-3-pc4l_chase - 12https://tracker.habhub.org/#!qm=All&q=delta-3-pc4l_chase
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[12:39] <SpacenearUS> New vehicle on the map: 03RS_P1030453 - 12https://tracker.habhub.org/#!qm=All&q=RS_P1030453
[12:39] <SpacenearUS> New vehicle on the map: 03RS_P1020056 - 12https://tracker.habhub.org/#!qm=All&q=RS_P1020056
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[13:04] <SpacenearUS> New vehicle on the map: 03RS_N2210321 - 12https://tracker.habhub.org/#!qm=All&q=RS_N2210321
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[13:11] <SpacenearUS> New position from 03U3B-22 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=U3B-22
[13:37] <SpacenearUS> New vehicle on the map: 03RS_L5013748 - 12https://tracker.habhub.org/#!qm=All&q=RS_L5013748
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[15:38] <SpacenearUS> New vehicle on the map: 03KN4IUD-11 - 12https://tracker.habhub.org/#!qm=All&q=KN4IUD-11
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[16:34] <SpacenearUS> New vehicle on the map: 03RS_N3930492 - 12https://tracker.habhub.org/#!qm=All&q=RS_N3930492
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[17:43] <SpacenearUS> New vehicle on the map: 03RS_N4410951 - 12https://tracker.habhub.org/#!qm=All&q=RS_N4410951
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[17:50] <SpacenearUS> New vehicle on the map: 03RS_N2220442 - 12https://tracker.habhub.org/#!qm=All&q=RS_N2220442
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[20:02] <chris_99> i now have some of those vga dongles we were talking about a while ago, i just found this though https://hackaday.io/project/158309-fl2k-experiments seems you can get noticable 'steps'
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[20:31] <SpacenearUS> New vehicle on the map: 03RS_M2933197 - 12https://tracker.habhub.org/#!qm=All&q=RS_M2933197
[20:53] <SpacenearUS> New vehicle on the map: 03RS_DFM09-17028205 - 12https://tracker.habhub.org/#!qm=All&q=RS_DFM09-17028205
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[21:50] <PC4L> ls
[21:51] <PC4L> oops wrong keyboard
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[23:11] <SpacenearUS> New vehicle on the map: 03RS_N3320027 - 12https://tracker.habhub.org/#!qm=All&q=RS_N3320027
[23:14] <SpacenearUS> New vehicle on the map: 03RS_P1040703 - 12https://tracker.habhub.org/#!qm=All&q=RS_P1040703
[23:16] <SpacenearUS> New vehicle on the map: 03RS_M4010197 - 12https://tracker.habhub.org/#!qm=All&q=RS_M4010197
[23:16] <SpacenearUS> New vehicle on the map: 03RS_N3920088 - 12https://tracker.habhub.org/#!qm=All&q=RS_N3920088
[23:18] <SpacenearUS> New vehicle on the map: 03RS_N3910366 - 12https://tracker.habhub.org/#!qm=All&q=RS_N3910366
[23:19] <SpacenearUS> New vehicle on the map: 03RS_N1820058 - 12https://tracker.habhub.org/#!qm=All&q=RS_N1820058
[23:19] <SpacenearUS> New vehicle on the map: 03RS_N3640297 - 12https://tracker.habhub.org/#!qm=All&q=RS_N3640297
[23:24] <SpacenearUS> New vehicle on the map: 03RS_P1040139 - 12https://tracker.habhub.org/#!qm=All&q=RS_P1040139
[23:24] <SpacenearUS> New position from 03IV3SRD-11 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11
[23:24] <SpacenearUS> New vehicle on the map: 03RS_N2430196 - 12https://tracker.habhub.org/#!qm=All&q=RS_N2430196
[23:29] <SpacenearUS> New vehicle on the map: 03DG6XXL-9 - 12https://tracker.habhub.org/#!qm=All&q=DG6XXL-9
[23:34] <SpacenearUS> New vehicle on the map: 03RS_L3813211 - 12https://tracker.habhub.org/#!qm=All&q=RS_L3813211
[23:40] <SpacenearUS> New vehicle on the map: 03RS_P1830123 - 12https://tracker.habhub.org/#!qm=All&q=RS_P1830123
[23:43] <SpacenearUS> New vehicle on the map: 03RS_P1720177 - 12https://tracker.habhub.org/#!qm=All&q=RS_P1720177
[23:45] <SpacenearUS> New vehicle on the map: 03RS_N4431015 - 12https://tracker.habhub.org/#!qm=All&q=RS_N4431015
[00:00] --- Mon Jul 30 2018