Re: [time-nuts] HP3325B frequency jitter specification

2016-10-18 Thread Bob Camp
Hi Are we talking about a stability (a variation from an earlier reading) or about accuracy (a deviation from target) ? Based on your description it’s an accuracy issue. I’d guess that one of the loops in the synthesizer is “stuck” at an offset of 0.003 Hz. Since it is constant, that should p

[time-nuts] HP3325B frequency jitter specification

2016-10-18 Thread Frank Stellmach
Hello, I purchased an early vintage HP3325B synthesizer generator, from about 1988. Unit is working all right, as I were checking most of the verification items. I have locked the HP3325B to my HP5370B OCXO, and measured the stability of the synthesized frequency with the same 5370B. I recog