>... > I use Peter G3PLX's SBSpectrum as the analyser, where you can trim the > sample rate in tiny steps. It also has a frequency resolution of 25mHz, > which is more than adequate for HF. My combination has won FMCs, but I > still can't resolve 0.01Hz off-air. >... > > 73, > Murray ZL1BPU >
You might also take a look at fldigi. It uses libsamplerate for conversion so you can do +/- ppm correction on the sound input, and also offers a tracking frequency measurement mode. A couple of years ago, I calibrated my radio clock against WWV at 10 MHz, then applied the resampling correction to get the sound card right, and then placed highly in the ARRL 7 Mhz FMT using this method. Leigh. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
