[ADTech]

It's odd that Fox isn't coming in. Simply moving the antenna several feet will likely fix it. It's probably just in a localized dead spot for that station, usually caused by blocked signal paths or reflected signals from hills trees buildings, or other structures. UHF dead spots can be as small as a foot or two and sometimes the antenna ends up plunked right into that spot by coincidence when installed. Since your plot indicates 1 and 2 edge path, raising or lowering the antenna will likely fix it.

Give the SR15 a try. Antennas that are at right angles to each other usually combine okay. Use a standard two-port splitter as the combiner.