599CONNECTIONS AND MAINTENANCE9CAUTION: After connecting the DC power cable, NMEAIN/OUT leads, external speaker lead and hailer/foghorn lead,cover the connector and leads with an adhesive tape asshown below, to prevent water seeping into the transceiver. AntennaA key element in the performance of any communication sys-tem is the antenna. Ask your dealer about antennas and thebest place to mount them. Fuse replacementOne fuse is installed in the supplied DC power cable. If a fuseblows or the transceiver stops functioning, track down thesource of the problem if possible, and replace the damagedfuse with a new one of the proper rating. Supplied accessories Microphone hangerRest the supplied microphone on the hanger when not in use.Connect the OPC-1096* to the transceiver’s ground terminalwith a self-tapping screw (3 × 8 mm) and the other side to themicrophone hanger to use the microphone hanger function.*Depending on version.• If the microphone hanger function is used, Channel 16 is selectedautomatically when the supplied microphone is rested on thehanger.Mounting bracket For mounting bracketDC power cable(OPC-891A)Microphone hanger cable*(OPC-1096: Black)Microphone hangerand screws (3×16)Knob boltsScrews (5×20)Flat washers (M5)Spring washers (M5)*Depending on versionFuse rating: 10 ARubber vulcanizingtape