Re: ? 75M Inverted Vee GAIN
- From: Owen Duffy <none@xxxxxxxx>
- Date: Thu, 28 Feb 2008 00:45:30 GMT
Sonny Hood <wrhood@xxxxxxx> wrote in
news:cgobs31kn4i6oinn2eh2age01vm13oi1sp@xxxxxxx:
After Google search no luck on any data on gain for this antenna.
Just installed with apex at 33 feet and has 27 degrees full length is
116.63 feet long and has a reduced length of 2.064%. Is there any
gain over a point incident antenna? k4wys@xxxxxxx
I don't understand some of your terminology or precision.
However, as others have told you, a dipole close to ground has a major
lobe that is upwards, and probably at the zenith.
The maximum gain depends on height and ground chacteristics. The article
at http://www.vk1od.net/buddipole/index.htm shows the modelled pattern of
a 40m inverted V and Buddipole and you will see from Fig 2 and Table 1
that the major lobe may be quite high (zenith), and the max gain may be
quite high in the case of the inverted V (>6dBi). The Buddipole maximum
gain is affected to some extent by the antenna's conductor losses, but
greatly by the proximity to ground and losses in heating the soil.
Your antenna looks like it is intended for 80m (you leave us guessing),
so it is at lower relative height than the inverted V in the article.
Owen
.
- References:
- ? 75M Inverted Vee GAIN
- From: Sonny Hood
- ? 75M Inverted Vee GAIN
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