[time-nuts] Question.....

Brian, WA1ZMS wa1zms at att.net
Wed Dec 14 22:10:13 EST 2011


OK......here's a question I never found a solid answer to:

On the HP-8656A signal generators, one of the amplitude scale buttons is in
dBf.

dB relative to a femptowatt.  (ie: -120dBm)

 

What drove that requirement?   I have yet to see a later vintage sig gen use
that scale.

 

 

-Brian, WA1ZMS

 




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