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Old 12-Sep-2016, 10:26 PM   #4
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,747
Quote:
So point the 8 bays towards 169 degrees magnetic & a 4bay 231 degrees magnetic.
Yes, unless CHCH on real channel 15 is important, then 225.

Combining two UHF antennas aimed in different directions doesn't always work, whether it is a 4-bay and an 8-bay, or whether it is the two panels of an 8-bay aimed in different directions. The reason it doesn't always work is because when the same signals from each antenna arrive at the combining point they will interfere with each other if they are not in phase (arrive at the same instant). You just have to try it.

In this case, make sure that each antenna system gets the channels you want when separate, then combine them with a splitter in reverse. If you lose some of the channels after combining, then it doesn't work at your location.

In this case, the combiner is used to combine the output of the power inserter for the 8-bay preamp with the coax from the 4-bay.

If the combiner doesn't work, you will then need to use an A/B switch to select which antenna you want to use. But, that will mean you must rescan unless your tuner can add a channel after scan like a Sony.

An alternative would be to connect the main antenna to the antenna connector of the TV and connect the other antenna system to a separate tuner with its output going to the aux input of the TV.
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