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No decode on BladeRF A4 #12
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On the original bladeRF device, I had to play around with gain settings on the command line to get ADSB decoding to work. The bladeRF_adsb program doesn't provide usage statement, but you can examine the bladeRF_adsb.c source to see what it accepts. For convenience, I'll put it here as well: I was able to use: It looks like the "unified" option is intended for the newer blade devices (and seems to work with the older too?) . If that is set, from looking at the source code, it appears that will set this unified gain level to 35 dB. So just like this: The source shows that should be the default behavior for the A4 anyway. However, it doesn't look like this 35 dB setting is available to modify from the command line, but you could change it in the source and rebuild the utility to try it at other levels. |
I had the same problem too trying to use the FPGA adsb build. I'm on ubuntu 20.04, using the nuand ppa (libbladerf v2.2.1 & fpga v0.11.0) with a bladeRF 2.0 micro A4. sean |
Hello!
I'm having issues using the BladeRF-A4 to decode ADSB messages. Everything seems okay on the command line (I get no errors), however no messages are ever decoded. I know that the antenna I'm using is able to decode ADSB as it works fine with an RTL-SDR. I've also tried plugging in the antenna to both RX ports on the A4.
I also see the
D1
LED flashing, so something is happening.Is there anything I could do to help debug the problem?
Thanks!
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