[TowerTalk] 1/4 wave vertical question

[Richard (Rick) Karlquist]

Mirko S57AD wrote:
> Even better solution - put variable capacitor at the base of antenna to 
> shorten it electrically for 30m band, and add a relay to shorten 
> capacitor when antenna is used on 40m band! After you find the right 
> value for capacitor, you may replace variable one with block one (it can 
> even be made of proper length of coax cable).
> 
> 73  Mirko, S57AD

Yes, I used to have a vertical like that in the early days of 30m.
Worked perfectly.  No tuner needed.

Rick N6RK