Comments (11)
Aang23
commented on June 4, 2024
That is very weird, 2.5M works just fine here.
Can you try using the latest code on Github first to be sure?
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K4KDR
commented on June 4, 2024
Many thanks for the recommendation!
The result was the same... 10M sample rate runs normally; 2.5M fails (output below)
[10/30/21 - 17:50:50] (D) Starting livedemod...
[10/30/21 - 17:50:50] (I) Generated folder name : /home/k4kdr/SatDump/output/2021-10-30_17-50_meteor_m2_lrpt_137Mhz
[10/30/21 - 17:50:50] (I) meteor_m2_lrpt
[10/30/21 - 17:50:50] (I) Starting live pipeline METEOR M2 LRPT
[10/30/21 - 17:50:50] (I) Module qpsk_demod
[10/30/21 - 17:50:50] (D) Parameters :
[10/30/21 - 17:50:50] (D) - agc_rate : 0.1
[10/30/21 - 17:50:50] (D) - baseband_format : f32
[10/30/21 - 17:50:50] (D) - buffer_size : 8192
[10/30/21 - 17:50:50] (D) - costas_bw : 0.004
[10/30/21 - 17:50:50] (D) - dc_block : 0
[10/30/21 - 17:50:50] (D) - rrc_alpha : 0.6
[10/30/21 - 17:50:50] (D) - rrc_taps : 361
[10/30/21 - 17:50:50] (D) - samplerate : 2500000
[10/30/21 - 17:50:50] (D) - symbolrate : 72000
[10/30/21 - 17:50:50] (I) Module meteor_lrpt_decoder
[10/30/21 - 17:50:50] (D) Parameters :
[10/30/21 - 17:50:50] (D) - baseband_format : f32
[10/30/21 - 17:50:50] (D) - dc_block : 0
[10/30/21 - 17:50:50] (D) - diff_decode : 0
[10/30/21 - 17:50:50] (D) - samplerate : 2500000
[10/30/21 - 17:50:50] (T) Volk has the spiral kernel, using it!
[10/30/21 - 17:50:50] (D) Starting SDR...
[10/30/21 - 17:50:50] (D) Device parameters airspy:
[10/30/21 - 17:50:50] (I) Opened Airspy device!
[10/30/21 - 17:50:50] (I) Samplerate 2500000.000000
[10/30/21 - 17:50:50] (I) Frequency 137100000.000000
[10/30/21 - 17:50:50] (D) Input SPS : 34.722221
[10/30/21 - 17:50:50] (D) Resample : 1
[10/30/21 - 17:50:50] (D) Samplerate : 210000.000000
[10/30/21 - 17:50:50] (D) Dec factor : 11.904762
[10/30/21 - 17:50:50] (D) Final SPS : 2.916667
[10/30/21 - 17:50:50] (I) Start processing...
[10/30/21 - 17:50:50] (I) Start processing...
[10/30/21 - 17:50:50] (I) Using input baseband
[10/30/21 - 17:50:50] (I) Demodulating to /home/k4kdr/SatDump/output/2021-10-30_17-50_meteor_m2_lrpt_137Mhz/meteor_m2_lrpt.soft
[10/30/21 - 17:50:50] (I) Buffer size : 98304
[10/30/21 - 17:50:50] (I) Using input symbols
[10/30/21 - 17:50:50] (I) Decoding to /home/k4kdr/SatDump/output/2021-10-30_17-50_meteor_m2_lrpt_137Mhz/meteor_m2_lrpt.cadu
Segmentation fault (core dumped)
k4kdr@3010i5:~/SatDump/build$ git branch
* master
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Aang23
commented on June 4, 2024
What are you attempting to do exactly? Because I cannot reproduce it anymore here...
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K4KDR
commented on June 4, 2024
Running satdump-ui, 'Live Processing', Meteor M2 LRPT, 2.5M Sample Rate
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KentuckyFriedData
commented on June 4, 2024
I can reproduce this as well and get
i have even included logs below
gdb-debug.txt
valgrind-debug.txt
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Aang23
commented on June 4, 2024
That is the exact bug I fixed recently. I will try to reproduce on Ubuntu 18.4 I guess... Can't on my machine.
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Aang23
commented on June 4, 2024
Actually, 01a8276 may also have fixed this issue. Would anyone be able to confirm?
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K4KDR
commented on June 4, 2024
Will update now & check on tomorrow's pass.
Many thanks!
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K4KDR
commented on June 4, 2024
Sorry - don't need a satellite to test whether it crashes w/ the 2.5M Sample Rate or not.
Works great! Thanks so much for the update. Can run 'Live' w/ the 2.5M rate again.
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K4KDR
commented on June 4, 2024
[v0.0.38 / master branch / build: 01a8276, built from source]
Running 'Live Processing' with Airspy-R2 @ 2.5M Sample Rate:
satdump-ui 'Live Processing' ran properly with the 2.5M Sample Rate - thank you!!
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Aang23
commented on June 4, 2024
I guess I can close this now!
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