[TowerTalk] SWR variations with power

[Richard (Rick) Karlquist]

> Both meters show that the SWR level fluctuates somewhat as the power level
> changes - getting higher with more power. for example, the range might
> bounce around between 1.2 and 1.4 as I talk on sideband at 1 kW, vs. close
> to 1.0 after the auto-tuner in the amp runs (generally with 20 to 50W
> input). It seems to behave a little differently on different bands.

Ham SWR meters are not precision test equipment.  I design test
equipment for a living and am unimpressed with what I see in most
ham equipment.  We would never use those kinds of designs
in our test equipment.  You are not doing anything wrong.
I haven't tested the N8LP power meter, but the design looks
promising and Larry is very knowledgable.  That is probably your
best shot short of professional test equipment.

Rick N6RK