Hi Rick,
Thank you, I was intending to use an external reference and it is useful to
know that the OCXO options are not worth paying a lot extra for.
Since I'm looking at refurbished or ebay instruments the presence or otherwise
of the OCXO options is a matter of luck - if they are there it
Rick
Very interesting on the HP5360 and that it could do ADEV. I had no idea and
actually don't know how that would be done. I can appreciate the HP
Engineers distaste for the 5360. Its very complex to repair. I have 5 of
them with the keyboard and they work. The worlds biggest calculator by size
Though I'm new to the list I've lurked for quite a while and from reading
various posts I am in a slightly confused state as to whether buying an
expensive counter (eg Keysight 53230A or a Tek fca 3100) will be useful as a
measurement tool for developing a GPSDO.
Given a one shot measurement
First of all, the oven oscillator option of the 53230
is no where near as stable in ADEV as a 10811 for example.
The counter itself is 1 or 2 orders of magnitude better
than the built in timebase. So don't waste your money
on the OCXO option when you, as a time nut, undoubtably
already own
