highaltitude.log.20200805

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[02:44] <SpacenearUS> New position from 03VK2HAB-11 after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=VK2HAB-11
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[06:18] <dg2fs_ksat> Darkside: no we are not using the same callsign. Rtty is DG2FS-1 4FSK is BUBBLE (21). 300 baud is because the rs41 hup firmware uses the same baudrate for rtty and 4fsk.We had good resulty with 300 baud on rtty so we didn't change it.
[06:19] <Darkside> ok
[06:19] <Darkside> i havent flown 4FSK at 300 baud before
[06:19] <dg2fs_ksat> We might change it for the next flight. Which baudrate is recomended for 4FSK? 100?
[06:19] <Darkside> 100 baud was the design baud rate
[06:20] <Darkside> only in the recent horus-gui software has there even been the ability to receive at something other than 100 baud
[06:21] <Darkside> actually i suspect you will have performance degradation running 4FSK at 300 baud
[06:21] <Darkside> the RS41HUP firmware is hardcoded to use 270 Hz shift in 4FSK mode, which is too close for 300 baud 4FSK to work correctly
[06:21] <Darkside> so, in making the changes you have, you have likely broken the 4FSK transmission
[06:22] <Darkside> if you had just left it at its defauly, you would have had reliable position updates every 3 seconds
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[06:26] <SpacenearUS> New position from 034FSKTEST after 034 days silence - 12https://tracker.habhub.org/#!qm=All&q=4FSKTEST
[06:26] <Darkside> ... gone
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[06:30] <dg2fs_ksat> The browser client for irc does not work well on my phone
[06:31] <Darkside> i just tested that the decoder does work at 300 baud with a high SNR
[06:32] <Darkside> but you will be throwing away performance at low SNR
[06:33] <dg2fs_ksat> I also tested it yesterday and it worked okay. But 4fsk is at this point just a new addon for us. We relay moatly on rtty. But if it works on this flight,we will use it more often
[06:33] <Darkside> run it at 100 baud
[06:33] <Darkside> its super reliable
[06:33] <Darkside> it actually has FEC, unlike RTTY
[06:34] <dg2fs_ksat> Ok. I will think about reflashing the firmware. But this flight will most likly run at 300 baud
[06:35] <dg2fs_ksat> Thans for your help
[06:35] <dg2fs_ksat> Thanks
[06:35] <dg2fs_ksat> I really can' type today
[06:41] <SpacenearUS> New position from 03BZ3a after 0315 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BZ3a
[06:53] <dg2fs_ksat> Ok i have another rs41 programmed for 100 baud. Will have to talk to the others wether we make this last minute change or not. Will give an update before launch.
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[07:18] <dg2fs_ksat> I changed the sonde. Both paxloads DG2FS-q and
[07:18] <dg2fs_ksat> BUBBLE are now on 100 baud
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[07:46] <SpacenearUS> New position from 03K9APX-3 after 0316 days silence - 12https://tracker.habhub.org/#!qm=All&q=K9APX-3
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[08:33] <SpacenearUS> New vehicle on the map: 03DL4NGE_chase - 12https://tracker.habhub.org/#!qm=All&q=DL4NGE_chase
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[09:43] <dg2fs_ksat> Bubble had launched
[09:46] <PC4L> GL
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[09:59] <SpacenearUS> New position from 03BB10 after 0314 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BB10
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[10:05] <SpacenearUS> New vehicle on the map: 03DG2FS_chase - 12https://tracker.habhub.org/#!qm=All&q=DG2FS_chase
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[10:56] <SpacenearUS> New vehicle on the map: 03DL7GO_chase - 12https://tracker.habhub.org/#!qm=All&q=DL7GO_chase
[10:58] <SpacenearUS> New vehicle on the map: 03Swallow_chase - 12https://tracker.habhub.org/#!qm=All&q=Swallow_chase
[11:00] <SpacenearUS> New vehicle on the map: 03Swallow_chase_2 - 12https://tracker.habhub.org/#!qm=All&q=Swallow_chase_2
[11:01] <SpacenearUS> New vehicle on the map: 03BUBBLE - 12https://tracker.habhub.org/#!qm=All&q=BUBBLE
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[12:16] <SpacenearUS> New position from 03N4XWC-1 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=N4XWC-1
[12:30] <Darkside> huh
[12:31] <Darkside> well the tracker was working! DK6OV was receiving the telemetry from 440k maway
[12:31] <Darkside> it just seems that no-one on the chase was uploading anything :/
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[12:41] <SM0ULC-David> Hello!
[13:06] <PE2BZ> Ola :-)
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[16:48] <SpacenearUS> New position from 03KN4IUD-15 after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=KN4IUD-15
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[17:54] <SpacenearUS> New vehicle on the map: 03W7EFS_chase - 12https://tracker.habhub.org/#!qm=All&q=W7EFS_chase
[18:14] <SpacenearUS> New vehicle on the map: 03BSS-L - 12https://tracker.habhub.org/#!qm=All&q=BSS-L
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[21:05] <SpacenearUS> New position from 03N6CVO-13 after 0315 hours silence - 12https://tracker.habhub.org/#!qm=All&q=N6CVO-13
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[22:05] <SpacenearUS> New vehicle on the map: 03YH81LU_chase - 12https://tracker.habhub.org/#!qm=All&q=YH81LU_chase
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[22:26] <Darkside> dg2fs_ksat: i saw the payloads were transmitting, but not much ended up on the map
[22:26] <Darkside> DK6OV was receiving the 4FSK payload just fine from 450km away
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[22:29] <dg2fs_ksat> Thanks for the help in setup and tracking. We for some reason got parsing error when uploading to habhub (I remeber something about wrong number of fields, so i must have tested with a differnt rs41 firmware than we actually flew with). Our local offline system (mostly dl_fldigi,horus_utils and chasemapper) worked great we did not use 4FSK during
[22:29] <dg2fs_ksat> the chase since we could not get Horus-Gui running on Linux in time. But DK6OV receiving it shows it worked quite well.
[22:30] <dg2fs_ksat> Some pictures: https://twitter.com/KSat_Stuttgart/status/1291088599295950849
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[22:33] <dg2fs_ksat> The organisation of the launch was a bit jumbled since it was someone elses private launch and we just taged on our reprogrammed sonde. With more preparation a few less erros would have been made :-)
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[23:18] <SpacenearUS> New vehicle on the map: 03PC4L-cam - 12https://tracker.habhub.org/#!qm=All&q=PC4L-cam
[23:23] <SpacenearUS> New position from 03PS-76 after 0320 hours silence - 12https://tracker.habhub.org/#!qm=All&q=PS-76
[23:44] Nick change: tryphe_ -> tryphe
[00:00] --- Thu Aug 6 2020