View Single Post
  #5   Report Post  
Old July 15th 03, 03:05 PM
Posts: n/a

Dr. Slick wrote:
Have you heard of something called mis-match loss? If the
antenna's input impedance is not matched to the tranmission line (or
the final PA), then the radiated power will be significantly less than
100 watts.

Not if there's an antenna tuner (Z0-match) in the circuit. The
following will radiate most of the mismatch loss from the load.

100W XMTR--50 ohm feedline--+--1/2WL 150 ohm feedline--50 ohm load

All of the reflected energy is re-routed back toward the load at
the '+' Z0-match point through re-reflection and wave cancellation.
73, Cecil

-----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- - The #1 Newsgroup Service in the World!
-----== Over 80,000 Newsgroups - 16 Different Servers! =-----