[Icom] pwr IC746

[Adam Farson]

Hi Clete,

As a rule, one can safely assume that a solid-state 100W-class transmitter
will deliver 100W PEP on SSB when it is adjusted for 100W CW output. This is
how I set up my radios; I set output power in RTTY mode, adjust Mic Gain for
mid-scale deflection on the ALC scale (on voice peaks) and set COMP for 3 to
5 dB compression (also on voice peaks). This procedure will be adequate if
the radio's Po scale is average-reading (as most seem to be).

The digital (peak-reading) Po scale on the IC-756Pro and Pro II is fairly
close to a true fast-attack slow-decay peak-reading meter, as is the peak
output scale on the Quadra. I use those scales to check PEP. For a more
exacting measurement, I use the procedure on my homepage.

The question of PPM vs. VU meters is not really all that relevant to the
topic of accurate SSB PEP measurement.

http://www.qsl.net/ab4oj/peptest.html

Best 73,
Adam, VA7OJ/AB4OJ
North Vancouver, BC, Canada
http://www.qsl.net/ab4oj/
Icom FAQ site:
http://www.qsl.net/icom/