[Antennas] inv L

[Igor Sokolov]

> Since no one answered my question about antenna resonance and the trap
> frequency, I decided to change something, and see what happened.

You did not give enough details of the trap and the antenna itself . I
usually measure trap's resonance freq prior to putting it on the antenna. It
can easily be done with just transceiver, dummy load and needle VAM. The
accuracy is down to few KHz.
Regarding the behavior of the trap in the antenna it is all here
http://www.w8ji.com/traps.htm


73, Igor UA9CDC