[BC] 50 Ohms vs. 71 Ohms (AM Antenna Tuning)

[Richard Fry]

>Is it best when tuning a tower that has a unipole on it to 50 ohms or 70 
>ohms?  ...  The engineer that put up my unipole told me that 70 ohms was 
>the best because it kept the signal more towards the ground.

Scott, the elevation pattern "launched" by a monopole/unipole is a function 
of its electrical height, not the impedance at its feedpoint.

RF