[Elecraft] [OT] Antenna Question

[john at kk9a.com]

That is a huge mismatch. Assuming that the portable 20m vertical is easily
assessable I would just clip on an inductor at the base to make it resonant
on 40m.  If you have elevated radials you would have to put one there also
or just lay the radials on the ground.  

John KK9A

[Elecraft] [OT] Antenna Question

rick jones n3ikq 
Sat Aug 6 22:58:39 EDT 2016

Ok sorry for not providing enough info! Consider this scenario: I have a
portable vertical with 4 counterpoise wires that is resonant on 20. Lets say
I want to tune the antenna up on 40. I can have a tuner right at the base of
the antenna OR I can just use a balun at the base of the antenna and use the
built in ATU in the K3. Is there a difference in how much power is getting
to the antenna? I assume the tuner at the base is the best option which
always makes me doubt the usefulness of having an ATU built in to a rig in
terms of getting the most power to the antenna. Am I on the right track?
Thanks! Rick