Ok, this thread helped me change the serial numbers and now I'm getting 1090 signals with both dongles plugged in....
To add to the above, when I run the command "rtl_test" I get the following: 0: Realtek, RTL2838UHIDIR, SN: 00000001 1: Realtek, RTL2838UHIDIR,...
I'm using a raspberry pi 3b. I downloaded the prebuilt image on the adsbx website and got it running just fine with my radarbox ads-b 1090mhz usb...
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