[BC] Vertical or Horizontal

[Phil Alexander]

On 3 Dec 2006 at 15:57, Tom Taggart wrote:

 > Despite all the theory, I'll believe real world experience.
 > In a car radio. circular or vertical will beat up on
 > horizontal most of the time.

Turning the clock back a tad over 40 years, that was given,
at the time, as the primary reason for adding V-pol to an
existing H-pol signal in the day when nearly every station
was strictly H-pol. There was a section of the rules that
talked about adding to existing antennas or replacing with
C-pol.

At the time before car radios became deaf, distant H-pol
would flutter and picket fence badly in weak areas
(that being < 5-10 uV in a day when sets were quiet down
to about 3 uV and quieted 20dB between 0.5 and 1.0 uV).
In that day, the addition of V-pol to a station made a
TREMENDOUS difference. Class B's that became noisy on
mobile receivers at 50 miles were listenable out to 65
or 70 miles. I know I had a couple of stations about
100 miles apart, and one had an FM. I had no problem
listening to for about 75 miles while driving back and
forth after we added vertical dipoles to it.