Re: Horizontal Loop Antenna
Posted by
Stuart Rohre on
Dec 21, 2005; 10:46pm
URL: http://elecraft.85.s1.nabble.com/Horizontal-Loop-Antenna-tp384747p384749.html
Whether you will get good results with your loop under the shingles depends
on the amount of metal flashing on the edges of your roof. Also, on the
amount of metal enclosed by it in your attic. we tried one on a Red Cross
building that had perimeter flashing and even on standoff insulators, the
loop was a poor performer. The insulators were 5 inches away from the
flashing. Perhaps the flashing was the shorted turn syndrome.
A dipole NVIS antenna has worked much better above this particular
commercial flat roof.
Under the roof were red iron bar joists, which also are grounded.
Stuart
K5KVH
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