[John Candle]

Yes the lack of reception is explained as one or all of these , multipath or interference from other types of transmitters such as Fm radio transmitters or other types and kinds of transmitters such as but not limited to other Tv transmitters both analog and digital tv transmitters. I suggest use a FM trap. It does help to have the coax grounded with a coax grounding block to electric service ground. Or if not able to do electric service ground , then a cold water pipe ground or drive a ground rod. . Tuners of any type , introduce noise , noise masks the desired signal , amplifiers also introduce noise and - noise - puts an over lay of , from a certain point of view a ' fuzz' over lay on the desired signal. Also the lack of reception can be using a incorrect antenna.