|Hewlett Packard Counters|
The HP5316A Reciprocal Counters were manufactured with a variety of 10Mhz time bases,
including onboard and modular basic oscillators (XO), temperature compensated oscillators (TCXO),
and for some series numbers,
an oven controlled oscillator (OCXO).
NOTE: 30 Day Return Warranty Provided Security Stickers remain un-disturbed.
This unit has been calibrated to 10.0000000Mhz +-1count with a GPSDO (GPS Disiplined Oscillator). Note that that is 9 digits
in overflow mode with a gate time of ~4-5s. This is really the very best that can be done without a cal lab being involved.
And it is likely they cannot do better. We make no adjustments to the analog front end, as a working meter should be
left alone unless there signs of problems.