26Fixing the Communication Mode1. To fix the transmit operation mode, touch [MODE] toswitch the communication mode.Communication Mode Icon Description of ModesV/D Mode(Voice & Data are transmittedsimultaneously)This is the standard digital mode.Calls are less prone to interruptions caused by detectionand correction of the received digital voice signal.Voice FR Mode* 1(Voice Full Rate Mode) *1High speed data communication using entire 12.5 kHzband.Enables high-quality voice communication.FM Mode Analog communication using FM mode.AM Mode (receive only)* 2 The AM mode is for receive only.*1 When the Set Mode [TX/RX] → [2 DIGITAL] → [4 DIGITAL VW] is set to “ON” (factorydefault is “OFF”), the Voice FR mode (VW) may be selected.*2 When the Set Mode [TX/RX] → [1 MODE] → [3 RX MODE] is set to “AUTO” (factorydefault setting), AM mode is automatically selected within the AIR band (108 -136.995 MHz).Transmitting1. While pressing and holding the PTT switch, speakinto the microphone.The TX/BUSY indicator will glow red during transmis-sion.If the PTT switch is pressed when a frequency otherthan the amateur ham radio band is selected, an alarmtone (beep) will be emitted and “ERROR” appears onthe LCD, disabling transmission.2. Release the PTT switch to return to receive mode.When receiving a signal, the TX/BUSY Indicatorlights according to the band of the received signal.Receive Band TX/BUSY LEDA-band receiving GreenB-band receiving BlueReceiving A and Bsimultaneously Light BlueMICTX/BUSY LEDIf transmission is continued for a long period, the transceiver overheats and the hightemperature protection function is activated. As a result, the transmitting power level isautomatically set to Low Power. If transmission continues while the high temperatureprotection function is active, the transceiver will be forcibly returned to the receive mode.
