As suggested by Bob and others the REF1 new out of the box needs time to burn in. At 1.8 weeks now I can see the EFC settling down towards a straight line. To start I was about 800 counts per day rising. Today 150 and rising. So it is slowly shifting towards what a z3801 as an example will do. Also ultimately it will look like an example Antony sent me. Simply noisy. The 3801 is fairly smooth.
So I sense my earlier concern of a "Bad box" is wrong. Pretty happy about that. Regards Paul WB8TSL _______________________________________________ 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.