I am at a loss to know how to model it with any confidence, for wires close to or on the ground. David G3UNA
-----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of Carl Luetzelschwab Sent: 01 August 2018 23:02 To: Joe Subich, W4TV; topBand List Subject: Re: Topband: WB6RSE Flag type loop question Joe, > However, the Waller Flag is a dual loop that trades off signal for > pattern. I agree. But I believe it's gain is very low mostly because it's made up of electrically very small loops. A very small loop has its main lobes in the plane of the loop - not perpendicular to the plane of the loop as in a quarter-wave-on-a-side loop in a Quad antenna. When a very small loop is mounted horizontally, there's a null in the pattern towards the ground. So even though it's mounted horizontally, it is less susceptible to the effects of the ground. > The LOG is a horizontally polarized antenna nearly on the "boundary" > where the horizontally polarized signal goes to zero. The better the > ground (higher conductivity), the worse (lower) the signal level from > the LOG (thank you Dr. Maxwell). I also agree with Dr. Maxwell. But a very small loop mounted horizontally is not like a big antenna mounted horizontally. And Nick is correct - KK5JY shows a two-loop system farther on down - it's kind of approaching a horizontal Waller Flag. Carl K9LA _________________ Topband Reflector Archives - http://www.contesting.com/_topband _________________ Topband Reflector Archives - http://www.contesting.com/_topband
