[TenTec] New and Improved Terminology (NVIS origins)

[Rick - NJ0IP / DJ0IP]

Carl, although you statement is perfectly correct, it can mislead one to
believe that the vertical dipole depends "as much" on the ground as the
quarter wave vertical does, and that is way way wrong.

The normal vertical MUST have a good ground in the form of radials and the
vertical dipole must not.
However, the earth below it affects both antennas.

Lay down 100 radials for a normal vertical and you will see a radical
improvement of performance.
That same radial farm under your vertical dipole will help but the
difference is nowhere near so great.

73
Rick


-----Original Message-----
From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
On Behalf Of N4PY2
Sent: Thursday, January 06, 2011 8:17 AM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] New and Improved Terminology (NVIS origins)

The vertical dipole was about 5 feet above the ground at the bottom.  The
vertical dipole was 66 feet long.  All vertical antennas require some kind
of ground plane to be efficient, even vertical dipoles.


Carl Moreschi N4PY
121 Little Bell Drive
Hays, NC 28635
www.n4py.com


----- Original Message ----- 
From: "Ken Brown" <ken.d.brown at hawaiiantel.net>
To: "N4PY2" <n4py2 at earthlink.net>; "Discussion of Ten-Tec Equipment" 
<tentec at contesting.com>
Sent: Wednesday, January 05, 2011 11:14 PM
Subject: Re: [TenTec] New and Improved Terminology (NVIS origins)


>
>> Years ago I had a vertical dipole for 40 meters and a raised vertical 
>> with 3
>> radials 10 feet above the ground.  The raised vertical was about 6 DB 
>> better
>> than the vertical dipole for European stations.  The raised vertical was 
>> 10
>> feet off the ground at the bottom with 3 full size radials (33 feet 
>> long).
>> I like raised verticals.
>>
>>
> How high above ground was the dipole? How long was the dipole? A half
> wavelength?
>
> DE N6KB
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> TenTec at contesting.com
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