The connector that's used on the cable of a GA 29, 30 and 38 Antenna

The connector used on the GA 29, GA 30, and GA 38 antenna is called a BNC or British Naval Connector. If this connector needs to be replaced, the cable size is RG-58 and it would require the 50 OHM connector. This should be available at your local electronics or marine store. It is recommended that a crimp or solder on connector is used rather than a screw on connector.