SSB can only be less total power, which results in good
> sounding signals (no clipping). But, I submit to assume PEP is 2x CW and
> assume the tubes can go that high is troublesome.
>
PEP is the easiest and most complete way to express the output power of an
SSB transmitter. The problem is that understanding what PEP is seems to get
in the way many times. If you read the definition below and think about what
it says things make sense.
"Peak envelope power is the average power supplied to the antenna
transmission line by a transmitter during one radio frequency cycle at the
crest of the modulation envelope, under normal operating conditions."
This means that "key down" or CW carrier output power is also PEAK ENVELOPE
POWER.
However, peak envelope power (PEP) can be a little higher on SSB than CW
output power because the dynamic plate voltage regulation is often better
(higher plate voltage maintained) in SSB than with the constant load of a
carrier. This may result in a 10% or so higher PEP in SSB than in CW or "key
down" mode. But there is no 2X "key down" relationship between SSB PEP and
CW.
73
Gary K4FMX
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