Total posts : 45366
Marshall’s post are always good – especially when you can understand what he’s saying! (he’s oft over my head).
In Part 15 broadcasting, the ground radials are almost NEVER resonant because they are way too short. The shortest, somewhat resonant, length for a radial for 1700 KHz would be 73 feet long (1/8th wavelength).
But Marshall, a often quoted link on on the forums is http://www.theradiosource.com/articles-techtalk-powerplane.htm ‘Groundplane TechTalk in which they recommend using 62 10 foot radials of 12awg wire connected to a 6 gauge inner copper ring, for the upper band.
But your saying it would require 7 times that length to have any effect, – so, is their recommendation then bogus information?
Correct me if I’ve misunderstood, but it seems like your suggesting that as far as part15 is concerned, ground radials are a waste of time, pointless, and of no benefit.
Now, I don’t really think that’s what your saying, but it is what it sounds like to me.
Elaborate a bit please..