Kenwood TK-3131 Instruction Manual - Page 23

VOICE ACTIVATED CONTROL (VOX) Using the VOX feature, you can operate the transceiver hands-free. In order to use this feature, however, you must use an optional headset; VOX will not function with the built-in microphone. For best operation conditions, we recommend you use an optional headset with both an ear piece and a microphone on a boom that rests in front of your mouth. With VOX activated, your voice level will determine when the transceiver transmits. Because of this, you must take care that the ambient noise around you is not so loud that it causes the transceiver to transmit. Due to the automatic switching between transmission and reception, we recommend you set the VOX gain such that it will not activate transmission when in an area with excessive ambient noise. VOX GAIN To enjoy the VOX function, take the time to properly adjust the VOX Gain. This level controls the VOX circuit to detect the presence or absence of your voice. 1 Turn the transceiver power OFF. 2 Press and hold the MENU key while turning the transceiver power ON (for 1 second). 3 Press the v or w key to select " ". 17