10VOICE OPERATED TRANSMISSION (VOX)Using the VOX feature, you can operate the transceiverhands-free. In order to use this feature, however, you mustuse an optional headset; VOX will not function with the built-inmicrophone. For best operating conditions, we recommendyou use an optional headset with both an ear piece and amicrophone on a boom that rests in front of your mouth.With VOX activated, your voice level will determine when thetransceiver transmits. Because of this, you must take carethat the ambient noise around you is not so loud that it causesthe transceiver to transmit. Due to the automatic switchingbetween transmission and reception, we recommend you setthe VOX Gain level such that it will not activate transmissionwhen in an area with excessive ambient noise.VOX GAINTo activate VOX and set the VOX Gain level:121With the transceiver power OFF,connect the headset to the transceiver(page 8).The VOX function does not activatewhen a headset is not connected tothe speaker/ microphone jack of thetransceiver.Press and hold the Lock key whileturning the transceiver power ON.Continue to hold the Lock key until theLED flashes orange one time and thetransceiver announces “VOX”, thenrelease the key. Upon releasing the key,the transceiver will announce the currentVOX Gain level.