135CONNECTIONS AND MAINTENANCE Unpacking➀ Mounting bracket ............................................................ 1➁ DC power cable (OPC-891) ............................................ 1➂ Microphone hanger ......................................................... 1➃ Mounting bracket knobs .................................................. 2➄ Mounting screws (5 × 20) ................................................ 2➅ Mic hanger screws (3 × 16) ............................................. 2➆ Flat washers (M5) ........................................................... 2➇ Spring washers (M5) ....................................................... 2➀ ➂➁ ➃➄➅➆➇ AntennaA key element in the performance of any communication sys-tem is an antenna. Ask your Dealer about antennas and thebest places to mount them. Fuse replacementTwo fuses are installed in the supplied DC power cable. If afuse blows or the transceiver stops functioning, track downthe source of the problem, if possible, and replace the dam-aged fuse with a new, rated one.☛ Fuse rating: 10 A CleaningIf the transceiver becomes dusty or dirty, wipe it clean with adry, soft cloth.AVOID the use of solvents such as benzene or al-cohol, as they may damage transceiver surfaces.