I'm still a bit puzzled by one aspect of how my CM 4228 receives signals. The 4228 does a gorgeous job with signals around channels 20-35. It does an awful job the closer you get to 50.
This applies to both digital and analog. I have several signals coming in from the same direction (Pittsburgh, PA) at 60mi.
KDKA-DT (UHF 25) is rock solid. Strong signal, very stable. I can pick it up across a wide range of angles. Even on a bad day we're talking about 45 degrees.
WPGH-DT (UHF 43) tends to come in well during the evenings. Higher channels, WTAE-DT (51) and WPXI-DT (48) depend heavily on the weather.
The same goes for analog channels. 22 is gorgeous, 53 is crap.
I've heard a few comments about modifying the CM 4228 to be better sensitive to the upper UHF channels. I'm curious how effective this has been, and how much it alters performance for the lower UHF channels.
Also, is it possible that some of this is just how the frequencies behave at this range? My understanding is that the lower the channel, the longer the range and the greater the ability to sneak into valleys and past trees and such.