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Digital signals are very difficult to work with especially if they are weak. Currently I have a Antennacraft MXU 59 mounted 7 feet off the back patio at my apartment and if I position it a certain way I can receive every channel that is "gettable" on my TV Fool report. But move it a few inches and I can easily lose Ch. 63 and Ch. 19 even if I still have it pointed at the same compass heading.
Also, I swapped out the TV's and that has helped. I gave away a new Samsung to someone that gave me pretty reliable reception of the local signals and replaced it with my 4 year old Samsung. Lost signals with the same antenna and those that still come in are weaker. Tuner may be going bad. Then when I switched to a newer Insignia Tuner box suddenly every local channel and the two fringe come in fine again if the antenna is pointed in the right direction and located in the right spot.
I also have a small Insignia TV that I use as a computer monitor. That too works quite well and has a superior tuner to the Samsung TV's. Solid reception of all signals without having to rotate the antenna.
In a nutshell. Digital signals have a sweet spot of they are weak. Finding the right spot on your property is key. You may even need to use two separate antennas in separate spots just to get everything you would like. Use an AB switch if a rotor is not possible.
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