An FM carrier could not answer it: constant by definition, so nothing to
correlate. CW at 100 W did, because the keying itself varies the output:
key down: RM4=25 RM5=207 RM6=13
key up: RM4=25 RM5=0 RM6=0
RM5 follows the RF envelope exactly — it IS the power meter. RM4 sits near 25
whether the key is down or up, so it is not measuring output at all, and reading
it as power is what showed 8 W on a 100 W transmission. The operator's hunch was
right and my first reading of the ramp was wrong: what I took for a needle
rising was RM4 drifting, not tracking.
Watts are now derived from that meter (207 = 100 W, measured) instead of the
power SETTING scaled by a percentage — the setting says what was asked for, the
meter says what left the radio.
The bars also hold their peak with a gentle decay. In CW the meters genuinely
read zero between elements, so following the raw value made them flash to nothing
several times a second; a needle has inertia, and this only ever holds a value
the radio really reported.
rouggy
8e491544dd