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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
