PCTEL ASPDM1965-Z PCS & Cellular Car Roof Mount Antenna The PCTEL vehicle roof mount antenna is 3/4 inch in diameter. Order the PCTEL K166 Series 3/4 inch hole mount with male/female connector separately. Compatible with: K166 style mount (order separately) The PCTEL ASPDM1965 vehicle roof mount antenna will enhance transmit and receive signals of cell phones within the cellular (824 - 894 MHz) and PCS (1850 - 1990 MHz) bands. This dual band mobile antenna is designed to minimize loss and maximize gain. You can expect a gain of 3 dB in both the cellular and PCS bands with this whip antenna.