No matter what I enter after --freq option, even e.g. 200MHz (on which no ADS-B is active) --freq 200000000, it still receives a lot of traffic. It shows the same flights as without the option (using 1090MHz). It looks like the option has no effect.
Using commit: master e320bd526c7abef33a69505bf12beefddf294dd4
--freq is ignored and 1090 MHz is always used for this version of dump1090. You can modify the code to use the frequency specified on the command line if you prefer.
No matter what I enter after --freq option, even e.g. 200MHz (on which no ADS-B is active) --freq 200000000, it still receives a lot of traffic. It shows the same flights as without the option (using 1090MHz). It looks like the option has no effect.
Using commit: master e320bd526c7abef33a69505bf12beefddf294dd4
Using SDRPlay RSPdx:
$ SoapySDRUtil --find ######################################################
Soapy SDR -- the SDR abstraction library
######################################################
Found device 0 driver = remote label = SDRplay Dev0 RSPdx 210508C845 remote = tcp://192.168.10.99:55132 remote:driver = sdrplay serial = 210508C845
Found device 1 driver = sdrplay label = SDRplay Dev0 RSPdx 210508C845 serial = 210508C845