24TRANSMITTING1 Select the desired zone and channel using the Selectorknob and the [Zone Up]/ [Zone Down] or [Channel Up]/[Channel Down] keys.2 Press the PTT switch and speak into the microphone.Release the PTT switch to receive.• The LED indicator lights red while transmitting and green whilereceiving a signal. This indicator can also be disabled byyour dealer.• For best sound quality at the receiving station, hold themicrophone approximately 3 cm to 4 cm (1.5 inches) from yourmouth.RECEIVINGSelect the desired zone and channel. If signaling has beenprogrammed on the selected channel, you will hear a call onlyif the received signal matches your transceiver settings.