Re: Topband: Best wire antenna for roof top location

2015-08-11 Thread Jim Brown
Ah, perfection. Sadly, EZNEC does not provide that set of options. If I could build that model, I would. But I can't. I will take this first approximation, understanding its limitations. Brown's 99th law -- never let perfect be the enemy of good. We don't know the nature of that roof, so

Re: Topband: Best wire antenna for roof top location

2015-08-11 Thread Guy Olinger K2AV
Hi Jim, I must respectfully disagree. And warn any reader that using NEC ground media to simulate a conductive roof is a very troubled procedure with significant issues. Using the first media to simulate an elevated conductive plane for any purpose is a problem. Using it to simulate radials is

Topband: Laurel Hardy

2015-08-11 Thread Tom Boucher
Frank, Interesting that in the 1930s you folk in the colonies called the thing an “aerial” and not an “antenna”! 73 Tom G3OLB _ Topband Reflector Archives - http://www.contesting.com/_topband