[BC] Long wire antenna

[Ron Nott]

The vertical conductor could be shielded by using coaxial cable up to 
the feed point, however, the resulting antenna would have little 
value, most of the radiation going up into the sky and ground and 
being composed of a massive number of lobes and nulls as Richard 
states.  Any contacts made would be pure happenstance, but thats the 
nature of ham radio.

Ron Nott, DVP

----- Original Message ----- From: "Richard Fry" <rfry at adams.net>
Sent: Wednesday, January 16, 2008 11:20 AM
Subject: [BC] Long wire antenna

>>Try a "true" long wire. No vertical section, and something like 12 
>>or 20 wavelengths long.  Or, for a truly long wire, 100 wavelengths.
>
>Feeding a horizontal long wire 150 m above the earth without 
>radiation from any vertical conductor(s) to the earth would be a 
>neat trick, and the antenna would have no useful  v-pol in the 
>horizontal plane.  Not a very good MW radiator.
>
>But ignoring all that I modeled 100-wavelength long wire in NEC, fed 
>at one end by an embedded source (no vertical wires).  It showed a 
>large number of lobes/nulls (>70); not pretty.  I won't bother posting it.