Hi Peter, I am not really in calibration at the moment and I have a limit

of

+/- 0.1Hz. But for what its worth I make the lines 137.7446 and 137.7528.

I

doubt whether Markus can hear(see) them at his location. I will try again
tomorrow when its a bit quieter, as they do make a useful marker at this

end

of the band.
Cheers de Alan G3NYK

I agree with these measurements. I use Argo calibrated against 60kHz. The
IC-706 Mk1 seems to re-set to within a fraction of 1Hz after 10 minutes warm
up, and stays better than 0.1Hz after that.

Mike, G3XDV
http://www.lf.thersgb.net
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