W5DXP wrote:

In which case, it is a phased vertical array, not a dipole. With
a spacing of 1/8WL, one can get 4 dB gain that way.

In your dreams.

Roy Lewallen, W7EL

Roy Lewallen wrote:
W5DXP wrote:
In which case, it is a phased vertical array, not a dipole. With
a spacing of 1/8WL, one can get 4 dB gain that way.

In your dreams.

I'm dreaming of The ARRL Antenna Book, 15th edition, page 8-6. Spacing 1/8WL,
phasing=135 deg, Gain = 4.1 dB. Remember, this is for two 10m verticals mounted
in line with the vehicle, not one on each side of the vehicle. It is essentially
a two element vertical beam with a cardioid radiation pattern and a large
front/back ratio.
--
73, Cecil http://www.qsl.net/w5dxp



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Cecil, is that not a driven collinear array?

Deacon Dave, W1MCE

W5DXP wrote:

Roy Lewallen wrote:

W5DXP wrote:

In which case, it is a phased vertical array, not a dipole. With
a spacing of 1/8WL, one can get 4 dB gain that way.


In your dreams.


I'm dreaming of The ARRL Antenna Book, 15th edition, page 8-6. Spacing
1/8WL,
phasing=135 deg, Gain = 4.1 dB. Remember, this is for two 10m verticals
mounted
in line with the vehicle, not one on each side of the vehicle. It is
essentially
a two element vertical beam with a cardioid radiation pattern and a large
front/back ratio.