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Welcome, JET4:
What direction is you antenna aimed?
Do you get ION 49.1 OK?
Your signals are very strong to the point of overload. The signal loss in the attic is difficult to predict because of differences in construction, but if your attic is average the 4221HD might have enough gain to cause overload.
A metal roof, aluminum foil thermal barrier, and aluminum, siding will block TV signals, as will trees or other buildings.
Are you using an amp?
To test the overload theory, insert an attenuator in the coax line. A 2-way splitter has a loss of 3.5dB; a 4 way, 7 dB. You might need even more attenuation than that.
For your location I would have picked the GE 34792 Attic antenna. I just assembled one for a friend in Newport News and he is using it inside on the first floor. He gets the channels you want OK
How long is the coax line from the antenna to the TV?
Last edited by rabbit73; 20-Nov-2016 at 7:50 PM.
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