[. . . ] —† This repeater is intended for use as a fixed base station with the antenna located outdoors on the rooftop or on an antenna tower. PRECAUTIONS • • • • • Do not expose the unit to rain or moisture; to prevent fire or electric shock. Do not open the unit under any circumstances; to avoid risk of electric shock. [. . . ] These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can generate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that the interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. INSTALLATION To install the handles onto the front panel of the repeater, align the handles with the holes on the front panel, then secure the handles using the supplied screws. MICROPHONE Connect an optional KMC-30, KMC-35, or KMC-9C Kenwood microphone to the MICROPHONE jack on the front panel. oCXO UNIT (KXK-3):Option The OCXO unit (KXK-3) is an Oven Controlled Crystal Oscillator (OCXO) unit. €¢ Increase the separation between the equipment and receiver. €¢ Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. 0 o i q Speaker w CH/STATUS Display Two 17-segment digits display the channel number, name, or status. (NXDN mode) r Programmable Function keys Press these keys to activate their programmable functions. T COM jack Connect to the PC using a RS-232C standard DB9 (Female) cross cable. Y VOLUME control Turn clockwise until a click sounds, to unmute the audio. –  Rear Panel q w TEST/SPKR CONTROL I/O 1 While blinking, the repeater cannot be used. 1 OCXO indicator The OCXO indicator shows the state of the reference 10 MHz oscillator : Lights Green when using a reference signal from an optional OCXO unit (KXK-3). Lights red when no reference signal is available or when an error occurs. [. . . ] You may need to readjust the volume if you are having interference while receiving a message from your dispatcher or another member in your fleet. Turn the VOLUME control clockwise until a click sounds, to unmute the audio. The BUSY indicator lights green while receiving a signal and the TX indicator lights red while transmitting. [. . . ]