I bought the K40 magnetic Antenna used from some one (the 5ft.). The
magnetic base was all rusted out so I tore it all apart and sand-blasted it.
All of the parts looked like new when I was done. When I put it back
together I replaced the original foil on the bottom of the magnet with
Alluminum Foil. I tested the resistence between foil and center bolt with
multimeter and there was almost none. Then I put one layer of clear plastic
packaging tape on bottom of foil to protect both the foil from tearing and
my car-paint from scratching. OK here's me Question (finally), will the
tape on the bottom of the foild be a problem because it is plastic and will
not conduct? I do not know much about Antenna Theory and have heard that a
peice of cloth under the magnet is bad for it. But have also noticed that
most magnetic antenna's come with a plastic sticker on the bottom to protect
paint. Would the tape have same effect?
I also was wondering where would be a good starting place on the calibration
of the antenna, as I do not have a meter. I would like to start in a place
that wouldn't be over 3:1. I was told a 1/4" from all the way down is a
safe place. Is this true?