As the title states, I’m running into this error while running a communications system on loopback.
The TX power seems to jump all over the place without changing any gain values. I’ve seen readings as low as -65dBm and as high as -40dBm. The system is running in PothosFlow, and has very little room to increase gain without encountering a high BER. I’ll include a picture of the FFT viewer loopback test, as the readings for that also seem incredibly low in relation to other pictures of the test I’ve seen.
I should also note that I’m taking my power readings with an oscilloscope, and go against the readings that are visible in PothosFlow with a periodogram block.
Any help would be appreciated, as I would like to rule out any possibility of a hardware defect as soon as possible.