In article , wrote:

With a dipole, you are depending on the null to minimize the undesired
signal and have little gain in the direction of the desired signal.

With a yagi, you still have the null (assuming a proper yagi) plus
additional gain in the desired direction. The net result is the ratio of
the signal strengths of the desired to undesired signals becomes greater.

Agreed. With a Yagi one might get the best desired-to-undesired
signal strength ratio by pointing the antenna somewhat to one side or
the other of the transmitter. This could reduce the "desired" signal
somewhat, but could put the "undesired" signal path right in one of
the antenna's deep nulls. Most Yagis having a modest number of
elements have a wide-enough beam angle to give you a fair amount of
wiggle-room in the aiming.

--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
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