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.
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