[Elecraft] KAT100 and external watt meter question

[email protected] [email protected]
Thu Jan 30 12:22:02 2003


Glenn, WA7SPY wrote:

"I have a question as to what is the best way to use an external watt
meter?"
==========
Directly at the output of the K2/100.

The term "antenna tuner" is really a misnomer.  By no means does it
increase the efficiency of an antenna.

In your case, the "antenna tuner" does not tune the antenna.  It merely
tunes the load the transmitter is fed into (which is the Carolina windom
feedline in your case) so that it looks like it is 50 + j0 ohms, and the
transmitter "thinks" it is looking into a 1:1 SWR.  

Therefore, with your wattmeter connected between the KAT100 and the
Carolina windom feedline, the actual SWR on the feedline will be
indicated (which might be high).

With the wattmeter connected between the K2/100 and the KAT100, the
indicated SWR will be what the output of the K2/100 is looking into
(which will be low).

73, de Earl, K6SE