Hi,
For better oscillators I let them sit for at least a week, but
preferably a month, before making any judgements on them. The readings
taken is really just their warm-up behavior. Wider phase-noise can be
measured earlier, but very close-in and ADEV/MDEV stabillty, not so much.
Hadamard D
I put a UCT8663 DOCXO in my HP-53132A counter (using Gerry Sweeny's adapter
board). I bought a bunch of those DOCXOs around 10 years ago. It was never
powered up during that time. Here are the notes that I made:
UTC 8663 mounted on Sweeny DOCXO card in a HP 53132A counter. The 8663 had
no
Has anyone played with the Lucent OMQ Time and frequency Modules? I have seen
them with Symmetricom 5Mhz Quartz P/N 106824 - 001 oscillators one of which is
currently listed on eBay. Other versions have X72's while some have X72's and
Quartz. I believe the 5MHz oscillator are digitally controlle
Hi
One interesting thing to look at on modern OCXO’s:
Part of the factory alignment *probably* was intended to set the unit
at the center of the EFC range. Back in the days of people selecting caps
or selecting resistors, that could be a pretty coarse kind of thing. At some
point computers got
