In message <[EMAIL PROTECTED]>, Brooke Clarke writes:

>> I got my 5061A trimmed to the point where a 5 day run against GPS 
>> showed an offset of less than 1x10e-13.  I then switched the unit into 
>> the long time constant mode and now see that the offset (over 36 
>> hours) is -1.7x10e-12.  Nothing else in the setup has changed.

Yes, very likely.  The leak-current in the integrating capacitor cannot
be fully ignored at this level.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
[EMAIL PROTECTED]         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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