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Old June 20th 04, 06:34 PM
Leland C. Scott
 
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"Landshark" wrote in message
...
Feel free, but I guess Signal Engineering doesn't
know anything, right?


They can't seem to get their facts right. For example:

" The pattern is "pulled" to areas where there is the most vehicle body. The
pattern is the worst in directions where there is no metal body for a
radial."

This is from their comment about mounting an omnidirectional antenna lifted
right off their WEB page. The dual antennas mounted near the mid point of
the vehicle should each have a similar pattern distortion due to mounting
location, for example to the front and rear with some to the side where the
antenna is mounted. Those are the directions where the metal is located,
with more to the front and rear than to the side. Now refer to the antenna
pattern for the site I mentioned you will see the greater field strength is
to the front and rear of the vehicle too for quarter wavelength spaced
antennas fed in phase, and is in the same direction. Both effects are adding
together in the same general direction. However under their comments about a
dual antenna setup they claim just the opposite in a round about manner.

--
Leland C. Scott
KC8LDO

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