It's all about the Software

Checked it again, what I need to do is to first turn the downconverter off, go to the 10 MHz, do the manual calibration with a GNSS DO reference frequency, (it yields 0.23 ppm, pretty good actually), stop the SDR, go to select radio, turn the downconverter section on, and you see that the PPM ...

I think there is a problem with applying a frequency calibration correction with the SDR receiver (a Zyncsdr / Libresdr) listening to the 70cm band (433.5 to 434 MHz) while the signal comes from a QO100 downconverter running between 10489.500 MHz and 10490.000 MHz. The required frequency shift is ...

SDR console is my favorite program for controlling SDRs, the latest addition is a ZynqSDR/LibreSDR which comes in a CNC housing. This SDR it is equivalent to the PlutoSDR, in fact the Pluto+ with 2TX and 2RX but it requires modified firmware. What SDR console could do better is recognize both RX and ...