DIAMOND MOBILE ANTENNA BC200LL 320 to 380MHz with Cutting Chart Request product info Specification Length:1.7m / Weight:0.9kgGain:5.5dB / Max.power rating:200W / Impedance:50ohmsVSWR:Less than 1.5:1 / Rated wind velocity:60m/sec. / Mast diameter accepted:30-62φ / Connector:MJ / Type:omnidirectional 2×5/8λ,FRP outershell our brands