Originally Posted by sonicdoommario
I live within 2.5 miles of the WPRI/WNAC tower, which broadcasts VHF, so I'm getting a bad overload issue there. How suspect is UHF to overload?
And if I had a UHF only antenna, would I notice considerable improvements in Boston reception?
It's really the tuner in your TV set that can suffer from over load.
A UHF only antenna will help, as it will attenuate VHF signals from reaching the tuner. However, the shield of the co-ax feed line can still pick up VHF signals and couple some of the signal into the TV set
A hi-pass filter, with a cut-off frequency of 400-450Mhz and placed in the co-ax feed line near the TV, might be needed in stubborn cases.
A hi-pass filter will pass all signals above the cut-off frequency and increasingly attenuate signals for lower frequency signals.
A hi-pass filter only requires a couple of inductors and capacitors and will cost only a couple of dollars to DIY. There are on-line calculators, cook books, examples etc. to determine the values needed and readily build-able by anyone with basic electronics background.
They are commercially available as well.