[Boatanchors] [Fwd: HP8601A Sweep Generator]

[J. Forster]

> I have just taken delivery of a (like) new 8601A sweep generator that is
> apparently in perfect condition except for one minor problem: low level
> residual FM.
>
> I am not at all sure that this is a defect or the normal operation of this
> instrument, and I wonder of anyone familiar with the peculiarities of the
> 8601A can advise.
>
> When in the CW mode, 11mhz range at 2mhz, fm is evident on the carrier; I
> would guess, from crude measurements, that the deviation is about 300hz at the
> frequency.

Have you checked the spec? The 8601A is really a sweep generator often used with
a Network Analyzer. Wide range sweeps and low FM are competing requirements.
-John