Richard Harrison wrote:

Users of the Bird and Similar wattmeters know that is what they see.
Source and load power is the forward power minus the reflercted power.

But that's only what is printed on the meter scale. It doesn't make the
"reflected power" real.

For the (n+1)th time: the Bird so-called "wattmeter" does NOT sense
forward and reflected power. It only senses RF voltage and current on
the line. The meter scale calibration is a mathematical operation that
depends on a lot of assumptions... most notably the assumption that
"reflected power" has some physical reality.

I am genuinely open-minded about that debate - which makes the all the
more determined to be ruthless about bogus arguments on either side.

And the most bogus argument of all is: "Users of the Bird and Similar
wattmeters know that is what they see."


--
73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek