View Single Post
  #9   Report Post  
Old April 17th 04, 03:00 PM
David
 
Posts: n/a
Default

As I recall my active antenna theory, you do not want a resonant
stick. Energy transfer actually decreases as the electrical length of
the antenna increases.

On 16 Apr 2004 21:22:57 -0700, (RHF)
wrote:

= = =
(Gary) wrote in message
= = = . com...
(RFCOMMSYS) wrote in message ...
My car radio, although good on FM, stinks on MW. It's about as sensitive as a
brick, but I don't want to replace the radio. Does anyone sell a high-gain AM
car antenna?


Many years ago I purchased a coil that installed near the bottom of my
car antenna which drastically increased the signal. I can't find that
item available anymore. I also used a smaller coil that installed
near the top of the antenna. These items were then available at many
auto accessory stores. Also, the ones I have experience with only
worked with non-power rod antennas.


C. Crane Co. - AM/FM Auto Antenna - Purpose: Improve AM reception
on your automobile. Remember: An antenna is more important than
your radio, always!
http://www.ccrane.com/am_fm_auto_antenna.asp
* This Loaded Coil Antenna will improve reception by almost
double on AM and may improve FM.
* Antenna works by increasing the electrical length over your
existing antenna.
* The antenna has a coiled stainless steel spring which will
allow the antenna to bend under the pressure of high speed,
and helps prevent damage.
* Height collapsed is 24" and 54" fully extended.

Signal-to-Noise: Tuner Talk and Car Radio Antennas
http://www.carsound.com/columns/navone/nav0004.shtml
- by David Navone
.
.
Now there is a booster that works on all car antennas.


BOOSTER= http://tinyurl.com/2xazb
http://jcwhitney.1estore.com/moreinf...item=03ZX9401Y
.
.
Just go to: www.jcwhitney.com and do a search
for antenna booster. I have no idea how good these work, but they
don't cost much.


iane ~ RHF

.