Hi all you smart humans on here.
> I've been looking for something to measure frequencies in the 20-80MHz
> range at about 1ppm accuracy.
Sorry, meant 10ppm. Not too stringent but already rules out typical crystal oscillator-based designs.
Re: HP 5316A opinion
Sep 25, 2009
2 Replies
I have an old cheap Global Specialties counter, the one with the Intersil chip and LED display. It has a trim cap for the crystal which I guess was set once. It's always better than 1 PPM.
Those old HP OCXOs are usually within 100 PPB, even from ebay gear. I guess your problem is to verify whatever you buy. Used to be that you could use the color burst or the horizontal oscillator of a TV set tuned to a color broadcast, but LCD TV's don't let you get at them. I guess GPS is the way to go now.
John
I use this service, free, already paid for by our taxes:
formatting link
Regards, Joerg
http://www.analogconsultants.com/
"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required