VHF 4' QuickConnect™ 3dB for QCM Series MountsQuickConnect™ antennas stem from the popularity of the quick connecting feature on Shakespeare's high-end Phase III® marine antennas, the QuickConnect™ product line brings you the ease of connecting and disconnecting your marine antenna in a more affordable line-up.Features:QuickConnect™ System - Screw or unscrew the antenna to disconnect or connectSplash Protection Cap - Protects the connector on the mount when the antenna is disconnectedCenterpin® PL-259 Connector - An easy crimp-on connectorBase connector included for use with QuickConnect™ mounts onlySingle Section antennas with VSWR of Maximum input power of 50WThe bandwidth of 5 MHz within 2.0:1 VSWRDoes not contain a built-in DC ground connection