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Old November 21st 03, 09:58 AM
RHF
 
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Robert 11,

YES - A simple 'single turn' Loop Antenna in the Attic would
be quiter then your current Random Wire in the Attic.
* Plus add a 9:1 Matching Transformer to 'couple'
the Loop Element to a Coax Cable FeedLine.
* Use Coax Cable between the Antenna Element
and the Radio/Receiver.
* Ensure that the Coax Cable's 'outer' Shield is Grounded
at the Radio/Receiver.
* Use a good Ground Rod (earth ground) and Ground Wire
to complete your "Antenna-Radio-Ground" System.

THE BETTER IDEA: The more complex answer would be to
study your "Attic Size & Shape" and the "Pitch" (Slope)
of your Roof. Then Plan-Out an In-the-Attic Conical Loop
Antenna (Folded SkyWire) for placement within the Attic.
(Attached to the "Under Side" of the Roof.)

= = = TOP VIEW : 40'L X 25'W
_______________________________
| ____________________________ |
| | ________________________ | |
| | | ____________________ | | |
| | | | *****************| | | |
| | | | *****************| | | |
| | | | x________________| | | |
| | | |____________________| | |
| | |________________________| |
X |____________________________|


= = = SIDE VIEW : 6'H
******x____________________
*****______________________\_ = 1 Ft Winding Spacing
***__________________________\_ = 2 Ft Winding Spacing
x______________________________\ = 3 Ft Winding Spacing

This is 'ruffly' a 400 Foot Folded Loop Antenna

FWIW: A better Drawing of this is In-the-Attic "Conical Loop Antenna"
(Folded SkyWire) is located in the PHOTOS Section of the SWL Antennas
and AM & FM Antennas eGroup at YAHOO !

GoTo= http://photos.groups.yahoo.com/group...FM-Antenna/lst

iane ~ RHF
..
..
= = = "Robert11"
= = = wrote in message ...
Hello:

Do general sw listening from the broadcast band
up to 30 MHz. No transmitting.

Presently have a single long wire (guess it's
technically called a random length wire)
running around the 4 sides of my attic,
and then down to receiver.

Works "fairly" well, but can't help feeling
I might do better.

Was wondering if there is anything "better"
that would easily fit in an attic and still
have pretty broad coverage (would settle
for 0..5 - 20 MHz) that I might consider ?

Thanks,
Bob


..
 
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