VHF 4FT QuickConnectTM 3dB for QCM Series Mounts. QuickConnectTM antennas stem from the popularity of the quick connecting feature on ShakespeareFTs high-end Phase III® marine antennas, the QuickConnectTM product line brings you the ease of connecting and disconnecting your marine antenna in a more affordable line-up.Features: QuickConnectTM System – Screw or unscrew the antenna to disconnect or connect. Splash Protection Cap – Protects the connector on the mount when the antenna is disconnected. Centerpin® PL-259 Connector – An easy crimp-on connector. Base connector included for use with QuickConnectTM mounts only. Single Section antennas with VSWR of <1.5:1 at 156.8 MHz. Maximum input power of 50W. The bandwidth of 5 MHz within 2.0:1 VSWR. Does not contain a built-in DC ground connection.