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Old September 26th 07, 09:22 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Aerial grounding and QRM pick-up: theory & practice

Navtex-Fan wrote:
There is indeed a lot of confusing stuff about baluns circulating in
magazines and on the internet. Is thought it was only possible to use a
antenna tuner at the receiver end when the antenna wire is directly
connected to the tuner, ( that is: without using a coax line)
Right or wrong?


What do you do when the antenna wire is not located
at the antenna tuner? Use a transmission line to
achieve maximum power transfer from the antenna to
the receiver (and vice versa for transmitting).
That's the basic function of transmission lines -
transfer the maximum amount of power from one point
to another with the least amount of losses.

Any reasonable transmission line impedance can be
brought to resonance through the use of stubs. An
antenna tuner performs that same maximum available
power transfer matching function.
--
73, Cecil http://www.w5dxp.com