[AMPS] IMD
Peter Chadwick
Peter.Chadwick@zarlink.com
Tue, 18 Sep 2001 15:59:18 +0100
Steve said:
>So when the spectrum analyser shows -50odd 3rd order IMD out of my 2m
>transverter at 15W pep from a bipolar PA with no rf nfb, it's telling lies?
Quite possibly! You know as well as I do that given the ghost of a chance, a
spectrum analyser will lie like a personnel manager (and they make politicians
look honest!) A DSP based spectrum analyser fed from a FET probe and you've no
chance of the truth.........
In case you think I'm being cynical, remember the definition of a cynic:
That which an optimist calls a realist
73
Peter G3RZP
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com