Can other than WWV 15.000mhz be used when the band does not permit?
Like 10.000 or 5.000 MHz ?
And stronger signal the better?
I ran the recalibration and it showed an offset of -856 ppm or 20 hz low on my setup. I manually reset to +430 ppb and reading was at 0.1 hz. Does using SAM make a difference? I also used FLDIGI the same way I use it for FMT. My readings on FMT have usually been less than 0.5 hz off
I use Spectrum Lab and/or FLDIGI, zero in on the 1khz tone offset in USB. This is the procedure I have used for a few years in running the Frequency Measuring Test. Using this method usually puts me within less than 1 hz from the known transmit frequency. This method on the Flex, gives me a reading about 10 to 20 hz low in frequency. I can adjust the ppb setting to correct it but that reading becomes about +450 ppb for my readings to agree with WWV.