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f4exb / sdrangel

SDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay and FunCube
GNU General Public License v3.0
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SDRAngel 7.22.1 could not work with hackrf one #2283

Open dspsir opened 1 week ago

dspsir commented 1 week ago

I have a hackrf one cloned by the third party. It works with SDRAngel 7.22.0 and another sdr software very well. After I upgraded SDRAngel to 7.22.1, it have received no signals but only noise. Is there a bug with hackrf one in 7.22.1 ？

DB-Billy commented 1 week ago

i have the same problem with you, i use for now 7.22.0 version

ikjordan commented 1 week ago

I have had the same experience. I was running a HackRF One on 7.22.0, it was working well decoding UHF TV signals around 591 MHz generated by a 1980s computer I upgraded to 7.22.1. I received only noise. I tried clearing out settings, but it did not help. I looked at the logs, but could not see anything obvious. I can upload the logs if required. I reinstalled 7.22.0 and was able to decode the received signals successfully again

dspsir commented 5 days ago

7.22.2 linux works well, but 7.22.2 windows still not

ikjordan commented 4 days ago

I've done some more investigation with 7.22.2 for Windows. It appears that the HackRF One sampling plugin does not initialise correctly. The following image shows the initial settings, note that the frequency and sampling rate in the two windows do not match.

7_22_2

The log file is attached. test.log

It can be seen that the wrong values are used in line 522 and 544. These values then propagate through the system

Sometimes by modifying the values the correct sampling rate and frequency can be set. Infrequently I have been able to receive valid data, but usually I receive only noise. When I do receive data it is not processed correctly by the sink. I think this may be because the sink has been initialised with the incorrect data reported by the sampling plugin.

All of this works correctly in the Windows build of 7.22.0. For comparison, a screenshot of the initial settings in 7.22.0 is attached here. As can be seen, the values in the two windows match.

7_22_0

Note that after receiving noise in 7.22.2 I have to reset the HackRF One (by pressing its reset button) before I can receive valid data in 7.22.0.

Please let me know if you require any further logs.

ikjordan commented 4 days ago

I've done some more investigation with 7.22.2 on Windows 10.

I can reliably decode the output from the HackRF if I do the following: 1) Before starting SDRAngle, press the HackRF One reset button 2) Start SDRAngel 3) Change the Centre frequency and SR on the left panel in the picture above 4) Start Acquisition

If I do not do step 3 the HackRF tries to capture data at the wrong frequency and SR (435MHz and 2.4M)

If I stop the acquisition it appears that the HackRF is not stopped correctly. When I restart acquisition the signal is not captured correctly.

It appears that the HackRF is also not stopped correctly when SDRAngel exits, which is why I need to perform step 1 before restarting SDRAngel.

Pure speculation on my part, but I wonder the incorrect/incomplete start and stop behaviour is an unexpected side effect of this line in the 7.22.1 release notes: "All device plugins: make sure start and stop are effective once only. Part of #2159"

Log for startup and close of HackRF One with ATVDemod under Windows 10 for 7.22.0 test7_22_0.log

Log for startup and close of HackFR One with ATVDemod under Windows 10 for 7.22.2 test7_22_2.log