[Antennas] Think I've got this figured out, Re: AM Broadcast RX Antenna?

[Ron Youvan]

   On 11/15/2015 02:08 AM, KD7JYK DM09 wrote:

> When I tested reception the other night, I held the 102" whip against the
> factory antenna which is covered in a thick black paint with no exposed
> metal.  There was an increase in volume and noticeable increase in signal to
> noise ratio.  I'm thinking the capacitance between the antennas, separated
> by the coating, and maybe a bit from my hands made the difference.
  /* snip */

   I have been following this thread, but I don't recall hearing that
the coax between car antennas and radios has like a 200 Ohm impedance
so using RG-58 or similar is going to hurt your efforts, if the
mount is going to be more than 3 feet from the radio a tuned circuit
followed by a FET pre-amp driving lower impedance coax would be worth
your time investigating.
-- 
   Ron  KA4INM - Youvan's corollary:
                 Every action results in unwanted side effects.