[time-nuts] 5370A vs 5370B

[Magnus Danielson]

Bob Camp wrote:
> Hi
> 
> Yes indeed, the period was measured with the two channels in the com mode and the reference
> into one of them. I hadn't considered the trigger offset issues and was expecting something
> sub-100 ps rather than 500 ps. Obviously I need to spend some "quality time" with this beast.
> Now I gotta figure out how to change the gate time :}......

If you do not fiddle with trigger levels, you _will_ loose accuracy. It 
is a systematic error.

> It sounds like my oscillator buffer board is going to get butchered pretty soon. 

I hope you mean modified. Applying a short at the right point improves 
the situation, but you don't need that to get started. It is a 
refinement that could wait for a little while.

Cheers,
Magnus