Originally Posted by arxaw
UHF may be more affected by tree leaves, but it certainly penetrates through building exteriors better than VHF. And UHF & pine trees aren't supposed to get along, but my antenna is aimed S/SW, directly at some huge pine trees, and the only time reception may break up is during 50+mph wind gusts we occasionally get here. Even then, it's much less annoying than the impulse noise interference we get on KAFT 9 & KOLR 10 in the VHF band.
Amazingly, there are quite a few people in our area living at the bottom of hills that can get UHF stations, but no VHF. It might have to do with the anemic power levels the FCC assigned most VHF digital stations, though.
I don't think pine needles contain as much moisture.
VHF + Digital is bad news. Some stations in our group that went back to their former VHF channels are now trying to change back to UHF.
Although UHF will not bend around objects, it does ricochet around quite well. If it can enter a valley just right it is not uncommon to pick it up at various points up the valley, even around bends. It has to be a spot that gets a consistent signal with multi path in a range the receiver can handle.
I once got 40 in for a person by placing their antenna on a broom handle stuck in the ground about 30 feet in front of and pointing at their mobile home acting as a reflector!