» Remove interference above 600 MHz(CH36) that are coming from Cell Towers, Cell phones or other RF sources, purifying HDTV signals
» Perfect fix for old pre-amps have bands across over 700 MHz (CH51), install this between antenna and pre-amp input, reducing chances of overload due to adjacent band (4G LTE, 5G)
» Cleaning unwanted RF signal out of HDTV antenna system effectively, thus improve receiver SN level and better image quality
» F type Female to Male connectors can be connected to Pre-amp directly or just plug in TV if no Pre-amp is installed, Extra F connector included to be adapted to F female ends, easy to install.
» **Notice**: This item will NOT work if Interference signal is within 0-700 Mhz or weak signal is not caused by interference. Confirm root cause of weak signal before buying this item