[time-nuts] Which HP Frequency Counter?

Pete peterawson at earthlink.net
Sun Mar 9 01:44:13 UTC 2008


Jean-Christophe,

I have had a very good experience with my
Fluke PM6681 (aka Pendulum CNT-81).
They show up on eBay 2 or 3 times each 
quarter, selling for US$600-800. Since they
are designed & produced in Sweden, I would
expect them to available more easily in Europe.

The PM6681 advertises 50ps single shot TI
resolution, but the GPIB data returns 25ps
data. The frequency mode produces 11 digit/s
readings.

Pete Rawson 




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