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Putting a Ferrite Rod at the Far-End of a Random Wire Antenna ?
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November 15th 04, 04:13 PM
RHF
Posts: n/a
Thank You One and All for your Replies.
Well I have the two Inverted "L" Antennas and the proof would
be in the Doing by de-rigging one and wrapping the Antenna Wire
around a Ferrite Core; so that the Coil will be at the Top of
Vertical Up-Leg. Then doing some Side-by-Side Testing of the
two Antennas.
NOTE: Taking a second look at the RF Systems "EMF" Antenna.
The more I get the impression that it is susposed to be Rigged
as a Vertical using the Coax Cable as a Counterpoise or may be
as an Inverted "L" with the Coax Cable as the Vertical Up-Leg
and the Antenna as the Horizontal Out-Arm.
once again thank you very much one and all ~ RHF
..
..
= = = Conan Ford wrote in message
= = = .159...
(RHF) wrote in
om:
FO&A,
Here is my Question: Is there any sense in putting a Ferrite Rod
at the Far-End of a Random Wire Antenna with the Wire from the
End of the Wire Antenna Element 'wrapped' around it in a
"Tuned Coil" to improve the AM/MW Band Reception ?
* Any 'theory' behind why this Idea might Work ?
* Does this Idea actually Work ?
* Or is this Idea just so much Antenna 'hype' and Sales Marketing
I am Asking these Questions is because of what I have read about
the RF Systems "EMF" Electro-Magnetic-Field Passive Wire Antenna
http://www.universal-radio.com/catalog/sw_ant/0743.html
In "John Wagner's Shortwave Tips & Tricks" he writes:
http://www.dxing.com/tips.htm
"The EMF antenna has two 35mm film canister looking objects
connected to it. The canister on the Far-End is actually an
excellent "Tuned Ferrite Rod" designed for MW (Medium Wave)
and really helps any receiver without a built in MW Antenna
Rod. Canister two (in middle) is a Balun that helps SW
reception very much."
i want to know ~ RHF
.
.
I have a 20 foot straight wire in my garage, that works better for MW
DXing than the ferrite rods in any radio I have, due to the fact that it
is much further from any noise sources in the house. I imagine the 16
foot wire being sold there would pick up some MW, but I doubt that
adding the ferrite bar at the end helps one bit.
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