Total posts : 45366
Your reply is appreciated and I don’t mean to pick nits either but could you please provide a bit more information?
[quote]The FCC frowns on such antenna enhancements as capacitive hats, large antenna diameter, and ground radials.
I wasn’t aware of this. If the antenna system is within the 3 meter limit it would seem that it is compliant with part 15. The rules also allow for a ground connection which limits the antenna and ground lead total length but do not specify what the ground is (such as buried radials). Perhaps you know of some situations where the FCC objected. Could you elaborate?
[quote] Most people know that circuit resistances cause power loss, but so do circuit capacitances.
Since theoretically capacitances and inductances only store energy which is returned to the circuit, I wonder if you are referencing some secondary effect such as mismatches or coupling to resistive effects due to the capacitance. It is pretty well understood that the effective resistance (and not the inductance) of a loading coil contributes to power loss but it is small compared to the ground losses of an antenna system with radials so heroic efforts such as silver plating or large diameter wire for these coils seem not to be worth the effort.