Glenn,
>From my experience, most precision 10 MHz OCXOs should be settable to within
5 ppb. If settability is not specified, it can be estimated from the tune
range and the number of turns of the adjusting device. A rule of thumb is
to use one point of resolution for every three degrees of rotatio
I just got a system that allows me to compare the phase difference
between a reference and an external oscillator.
I am using a Vectron oscillator installed in a HP 5345A counter as
the external oscillator and a PTB-100 as the reference.
How close to the reference should I be able to set the OC
