[Elecraft] On ground - in ground radials

[Jim Brown]

Just out of high school, I had a summer job at WSAZ, a 5-kw with a 
4-tower array, with the same ground screen/raidal configuration on each 
tower, silver-soldering those radials.

120 radials was a legal requirement of FCC Rules, and was primarily for 
standardization of performance.

73, Jim K9YC

On 1/17/2022 9:28 AM, George Danner wrote:
> Mike,
> When I was an AM radio broadcast engineer in the 60s & 70s, we used a
> copper screen for the first 20' to 50' around the tower base and silver
> soldered all the 1/4 wavelength radials to the common point straps and
> several places along the screen. This was in Florida with sandy soil. I
> seemed to remember from my 1st Phone exam that 120 radials were required.