POLYPHASER Coax/Surf Mount/N DC block, lightning protection, engineered for high power of combined signal operating up to 750 Watts between 100 MHz to 512 MHz band pass configured with N female connectors. The VHF50 product family is based on PolyPhaser's patented filter surge protection technology. This circuit acts as a high-band filter, shunting surge energy to ground. PolyPhaser leads the industry in surge arrester protection solutions. The VHF50 technology has been approved by major OEM's for use with critical applications such as emergency response and public safety communications. Motorola Part Number DSVHF50HN