About a year ago I wired my old cable TV video filter inline to my scanner coax as an experiment, and it resulted in much stronger, clearer, and quieter (less hiss) signals on all of my VHF and UHF freq. I had to replace the BNC ends with RG6 ends to adapt to the terminals on the amplifier. I started picking up signals over 100 miles away that I really didn't want to hear, so I wired a switch to it to easily turn it on or off from my desk as needed. My antenna is a 16-element discone which I am really happy with. Wal-mart still sells the exact same amps in the cable TV accessories department. Specs are as follows: 120 VAC, Video amplifier., single output, VHF/FM/UHF, 12 dB, 50-900 Mhz. For $20.00 it is hard to beat. Maybe it isn't supposed to work ...but it does!