[Elecraft] OT Hypothetical KAT500 antenna connection question

[Fred Atchley]

I have a question about connecting the KAT500 (outside version) to an 80
thru 10 meters wire antenna.

As an example, I have a "Mystery" antenna which, like the G5RV uses a tuned
length of twin-lead as part of the antenna design. Therefore I will have two
possible places to couple the KAT500 to the old antenna:

a.	At the present input end of the twin-lead.
b.	At the antenna center point (do away with the twin-lead.)

Another alternative would be to replace the old antenna with a new wire. I
believe this alternative would require selecting a longest length of wire
which avoids a quarter-wave length multiple on any band. Any ideas on what
length that would be?

Since getting the KPA500, I have added tuned antennas on 10, 15 and 40. On
those three bands, I can use the amp w/o a tuner. I'm leaning toward a new
wire to replace the "Mystery" antenna for 80 and 20 meters. 

Last week at 0500Z, I worked Cape Town, South Africa on 20 meters with 200
watts (KPA500 sometimes blinking red.) So, now is the time to prepare. I
welcome your thoughts and I assure you that I have great respect for your
input.

73, Fred, AE6IC, K-Line