Below is a chart showing the effects of using an antenna system with radiating conductors exceeding the 3-meter FCC limit allowed by U.S. 47CFR §15.21...
RE: Using a 130-ft horizontal wire as an antenna for "Part 15 AM" stations A horizontal wire produces horizontally polarized radiation, which has ver...
RE: ... if we or another party filled for a modification or amendment to 15.219, allowing the ground lead to exceed 3 meters (not the antenna) would ...
RE: .. I live in a one story house. A thought Rich, coming from a Ferrite Filter Choke under the transmitter, going down the 13 feet, 1.48 inch meter ...
RE: ... What about using a *shielded*ground lead from your location say 30 ft up? A shielded ground lead? … You would be using center conductor as th...
RE: ...The wire between the Ferrite Filter Choke and to whatever we choose to attached to use for a ground, be it a short 3 foot galvanized galvanized...
RE: I think how the Ferrite Choke Coil works is we take the copper wire at 10 inches from the Part 15 Transmitter, insert this ground wire going to th...
RE: Wouldn’t ground conductivity come into play here as well as it did for us Licensed Commercial AM Broadcasters? Yes. It’s not really signal in ...
From an earlier post in this thread: "The problem is our Audio Division at the FCC sees the ground wire as a part of the radiator, thinking this incre...
RE: But maybe Rich can weigh in on this. As usual in engineering matters, accurate answers to apparently simple questions can require a deep underst...
RE: Is there a relationship between a wire cut to wavelength and a length of wire wound on a loop antenna to reach resonance? _____________ There is...
Below is a graphic page that can be useful in the discussion of this topic. The concepts posted earlier sound simple, but much complexity exists when...
RE: I’m actually amazed that I’m getting a mile. It’s pretty noisy here. Since I’m using the buildings electrical system’s ground, I’ve noticed a hug...
RE: Your idea by looking at the drawing is a savior! My wife has seen your drawing, but like me, she has no idea how long each radial has to be. Pro...
A few comments about the post first above: RE: I have had to install a copper ground system for my Commercial AM Station I owned before I retired fr...