[AMPS] Peak reading vs True peak

[Peter_Chadwick@mitel.com (Peter Chadwick)]

Jim says:

        >and modulating with a SSB note,the peak level is not much higher

        If you have a single tone on SSB, the peak is equal to the average.
        If you have two equal, sinusoidal, non-harmonically related tones,
then the PEP is four times the rms. The 'average' power indicated is
dependent on the type of RF to DC conversion used: there's often a factor of
pi/2 comes in.

        > Is there a difference between peak power and True peak power? 

        damned if I know! Bit reminiscent of 'music power' ratings! I
suspect it's back to the way in which a 'peak' reading voltmeter decide on
the peak.

        73

        Peter G3RZP


--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm