Using a field strength meter.
Anyway the Antenna is 11ft long overall. 6ft base about 7uh loading then a 4ft whip. Monoband 20 meters. No cap hat. Its not your average hamstick. Its about 1.5 db down from the full size 1/4 wave antenna
The antenna is fairly light compared to the extremely heavy screwdrivers. It uses a very light E-glass fishing rod blank and a high Q coil. I only drive small Volkswagen golf and I win just about every shootout that I enter on 20 meters. I compared it directly with a full size quarter wave in the same position when making the measurements. 3inch coil 10# wire.
What efficiency do you calculate it to be?
I have not heard your signal because of propagation and the times that you are probably mobile. Anyway I am sure we can work mobile to mobile on 20 meters or 40 meters sometime.
Sys signal with that antenna is legendary. However I do respect your comments. Its hard assessing an antennas efficiency from listening to a band with 10db of fading. There is no doubt that his installation works, impressive for such a short antenna. I am sure that big car that he drives helps combat some of the ground losses.
Hem. Guess you never worked me.
I'm not impressed with any cap hat design that is mounted close to the coil. I'm also not impressed with the large Hustler coils, as they actually have a lower Q than their smaller counterparts, due to the large end caps.
And if you will, please, explain to me how you came up with a 20 meter efficiency rating of 82%?