Commander Technologies – 220-3BN – 151.5-159.5 MHz 5.25dBd Fiberglass Omni Antenna. COMMANDER TECHNOLOGIES’ 220-3BN Super Stationmaster omni antenna is designed to ensure consistent gain and impedance for a variety of applications. The VHF omnidirectional antenna operates within the frequency range of 151.5 – 159.5 MHz and features 5.25 dB gain, with N Female termination. The maximum power is 500 W. The antenna comes with Commander Technologies’ 46 clamps for mounting. The Super Stationmaster base antenna with its broad frequency response is suitable for duplexed systems. Type of Jumper Included Not Specified. Item Weight 23 lb. Lightning Protection DC Ground. Qty/ Uom 1 Each. Gain dBd 5.25 dBd. Item Width 2.75 in. RF Connectors N Female. Item Height 249.60000000000002 in. Gain dBi 7.4 dBi. Maximum Power 500 W. Item Length 2.75 in. Type of Hardware Included 46 Clamps. Maximum Rated Wind Velocity 125 mile/h. Maximum VSWR 1.6:1. Specific Frequency 151.5-159.5 MHz.