[time-nuts] HP Z3805A com port and monitoring questions

[Tom Van Baak]

> Trimble and HP took different approaches on their GPSDO's.
> Trimble lets you get into things and fiddle around. HP is much more a black box.
> I have never seen anything that lets you "fiddle' with one of the HP units.

Hi Bob,

I'm glad you asked. True, the Trimble TSIP binary command set lets you fiddle and the HP SCPI command set is much easier to use but more limited by comparison. But there's also a rich under-the-hood layer on the HP units. Spend some time with this file and you'll see what I mean:
http://leapsecond.com/museum/z3801a/z3801a-bin.txt
I explored the functionality in some detail during my hp GPSDO DAC dither investigation some years ago. Contact me offline.

/tvb