If you are having interference problems, a more directional antenna might help.
I would experiment with moving the existing antenna (outside if possible) before I spent the money on another antenna. Moving an antenna up/down or sideways can sometimes have surprising results.
You said, "I only care about digital channels 19, 20, 27 and 42." Per the radar plot, those stations are close together so if you choose to try a more directional antenna, you should not have a problem aiming at the group.
Last edited by GroundUrMast; 21-Oct-2010 at 9:18 PM.
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