"Antonio I0JX"

The frequency stability of my HP3312A function generator is poor, very
annoying for any practical use. I am trying to determine whether that
behavior is fairly normal for function generators, or my particular unit
has got a problem.

What is your experience on function generators frequency stability?


** Normally, frequency stability relates to the internal temperature of a
generator - so frequency stability = temperature stability. If the
frequency varies independently of temperature, then there is something wrong
like a faulty frequency control pot.

In any case, the tempco of a carbon track pot ( as used in the 3312a) is way
higher than metal film resistors and film capacitors.

How bad is your unit's stability ?

If ( after a 1 hour warm up ) you set the gene at 10kHz and waited 30
minutes - what would the new frequency be?



..... Phil