Comtek PRA-H Phase Right Antenna Phase Right Antenna, a unique remote high-gain antenna that minimizes phase cancellation. Includes 25 ft. of coax cable. Please specify frequency and terminating cable connector when ordering (UHF, BNC, F). For High VHF (169 to 216 MHz). Comtek PRA-72 Phase Right Antenna Phase Right Antenna, high-gain antenna for Low VHF (72 to 76 MHz). Includes 25 ft. coax cable. Please specify frequency and terminating cable connector when ordering (UHF, BNC, or F). Comtek PRA-5/6 Phase Right Antenna Phase Right Antenna, high-gain antenna for use with BST-25 synthesized transmitter in the TV 5-6 band (76 to 88 MHz). Includes 25 ft. coax cable to BNC connector, and two whip extensions, one for TV 5 and one for TV 6.