Help: Can anyone identify what this is?

[Alfie John]

On Fri, Mar 20, 2015, at 04:23 AM, jim bell wrote:
> Monopole antennas (a rod perpendicular to a ground plane)  are usually
> tuned (sized in length) to be either 1/4 of a wavelength of the rf being
> transmitted/received, or 5/8 wave.         Jim Bell 

Awesome. I was hoping that someone would have technical info like that.
Thanks.

Alfie

-- 
  Alfie John
  alfiej at fastmail.fm