[volt-nuts] HP-3458A Zero Reading

[Randy Evans]

I shorted the input terminals of my HP-3458A with a short lead of copper
wire, Bell telephone wire as recommended in the manual.  The reading I get
is around 000.00070 mV, or 0.7 uV with NLPC set to 100.  I was trying to
evaluate it's use as a null meter for my Fluke 752A divider.  This seems a
little higher than I would expect but no amount of running AUTOCAL or ZERO
changes this amount.  Is this considered acceptable?

Randy AE6YG