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Old 6-Feb-2021, 7:57 PM   #20
Tower Guy
Senior Member
Join Date: Dec 2009
Location: Delmar, NY
Posts: 1,234
Filtering adjacent channels can be done, but it’s expensive. A cheaper approach is to stack two yagis horizontally so that the first null occurs on the adjacent channel. In this case the stacking distance is wider than normal at about 8 feet. The antenna should be aimed to null the unwanted channel, not peaked on the desired channel.

There is additional information here;

Last edited by Tower Guy; 8-Feb-2021 at 12:38 AM.
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