[time-nuts] Adding EFC

Perry Sandeen sandeenpa at yahoo.com
Sun Oct 3 22:45:27 UTC 2010


The HP 10811 type oscillator is used for both the HP 5370B TIC, the HP 3586B SLV with the high stability option, and the HP 5335 frequency counter which I have.  But none of them make use of the EFC option that I’m aware of.  They do use EFC for the HP 3336B frequency generator that I have.  Considering the instruments cost it seems like a strange omission to me.

I can get a manual adjustment down to an error of about .04 Hz at 15 MHz compared to my Lucne GPS using a great deal of patience and having a bit of luck.

Can or has anyone hacked these instruments to add EFC?  I don’t mind being the firs to try but I’d rather not re-invent the wheel.



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