Low loss coil form adds dimensional and frequency stability ABS material is injection molded around solid brass inserts to create a virtually indestructible housing that is virtually leak proof All silver soldered joints ensure electrically and mechanically secure connections RF Connectors No Connector Color Silver, Black Specific Frequency 144-174 MHz Whip Length 40 in Gain dBi 2.4 dBi Maximum Power 100 W Mobile Antenna Mounting Type NMO Qty/ Uom 1 Each Whip Material Stainless Steel