[Elecraft] Re: [Icom] Opinions re: HF Verticals?
Vic Rosenthal
[email protected]
Tue Oct 15 16:15:01 2002
Stuart Rohre wrote:
> The people who do not like verticals either do not understand they are
> superior for low angle DX, and want them to do close in work all the time,
Over poor or just OK ground, even a vertical with a good radial system will
compare poorly for DX to a horizontal dipole at more than a half-wavelength
above ground for DX. The theoretical pattern is subject to a big suck-in at low
angles caused by poor ground in the Fresnel zone a few wl from the antenna. So
above 7 MHz (wl/2 = 70 ft) most of us can build a horizontal antenna that is
more effective than an excellent vertical (like the Force-12 verticals).
> or they do not have an adequate ground system or radial system if using
> "half an antenna"-- the quarter wave vertical and its loaded equivalents.
Even a vertical dipole or a monopole with 120 radials behaves as above.
By the way, Stuart, I don't know where you are located but some areas in Texas
have very high ground conductivity and these places are, so to speak, fertile
ground for verticals!
73
Vic K2VCO