Loops?
In article ,
Ross Archer wrote:
Welp, my Wellbrook ALA1530 died six months back, fairly
ending my SWL listening until recently.
I'm making do with a random wire and a high quality matching
transformer, which is a lot noisier, but at least I could
hear Radio Australia doing an excellent feature on the
planet Mars.
Does anybody else make good-to-great quality outdoor loops?
I'm still sold on loops because they seem to deliver better
S/N ratios in my (electrically noisy semi-industrial)
location.
If you have a yard make a large horizontal loop. You would want it to be
over 200 foot to work well down to 5 MHz. A 110-foot loop, which is just
27.5 foot a side (square) would work for the 31-meter band on up. You
would need at least 3 and preferably 4 mounting points. Put a 50-ohm
resistor across the ends of the loop and the coax across the resistor.
This antenna is simple, cheap and better than a random wire.
--
Telamon
Ventura, California
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