[Elecraft] KPA500 and KAT500 Ports

[Ron D'Eau Claire]

Let's be clear. There is absolutely no problem building a very wide range
antenna 'tuner' that can handle kilowatts of RF at an SWR of 10:1 or even
much higher. 

Such a tuner is very easily fabricated, but requires physical space with
large switches to avoid corona discharges and uses big air-wound coils and
large wide-spaced transmitting type variable capacitors to work efficiently.


It's the demand for a "compact, fast QSY" system that poses the huge
engineering problems. And that's why the most popular Ham antenna systems
(including tuners) are the most popular. They aren't necessarily the most
cost effective or the most efficient. What they do that makes them popular
is they are a decent tradeoff between the power handling and rapid QSY
capabilities many Hams today demand.

Those of us who don't insist on that "compact system, fast QSY" capability
have an easy life, Hi! 

73,

Ron AC7AC