WKTB is predicted to have a noise margin of 13.1 dB in the air. The gain of the 42XG is more than enough... in theory, a simple dipole should be 'enough'. However, your challenge is to keep the interfering signals out. Using a less directional antenna and mounting in the attic both add noise/interference while reducing the preferred signal.
My suggestion is to use a highly directional antenna, and mount it outside clear of obstructions.
|