This feature never appeared to work for me, but I finally just got around asking about it after a year of having the radio.
Is anyone experiencing the same issue?
I here in Europe do not use the 15MHz calsignal, because it is to week here, I have an
HP Signal-Generator and 10Mhz stability from GPS and set it to 15Mhz with abt -60dBm
and then calibrate the Flexradio from time to time. At present my number is around -770
but this number will be different for each radio.
I hope you are aware that you can manually input the cal offset number and shift the carrier until it matches the calibrating frequency. This is useful in weak signal conditions and I can get + or - 1 Hz with little problem. Expand the spectrum display for maximum resolution. For the 15 MHz signal I use USB with a frequency step of 1 Hz. changing the offset number by 1000 will change the frequency by 16 Hz (approximately). So if you are indicating 16 HZ high on your Frequency indicator add a value of -1000 to shift the frequency by 16 Hz. The amount of shift is linear so -500 will shift by 8 Hz. I use this method and it seems to work fine. If anyone has different results please let me know.
However, I just wish the feature worked as advertised. I am only using this feature with WWV.
Another item that I think it may help is if it would stay in frequency for a bit longer than a few seconds for the calibration. The process seems to be really fast and maybe that is why I am getting inconsistent calibration results.