38VOX OPERATION1 Connect the headset to the transceiver.• The VOX function does not activate when a headset is notconnected to the accessory terminal of the transceiver.2 Press and hold the key programmed as VOX for2 seconds.• On K2 and K3 model transceivers, the icon appears onthe display.3 To transmit, simply speak into the microphone.• The transceiver recognizes sound levels depending on theVOX Gain level. If the microphone is too sensitive, it willbegin transmitting when there is noise in the background. If itis not sensitive enough, it will not pick up your voice whenyou begin speaking. Be sure to adjust the VOX Gain level toan appropriate sensitivity to allow smooth transmission.4 When you finish speaking, the transceiver automaticallyreturns to receive mode.• Depending on the pre-programmed delay time, it may take amoment before returning to receive mode. The delay time ispresent to ensure that the end of your conversation is not cutoff when you finish speaking.5 To turn the VOX function OFF, press and hold the VOXkey again, for 2 seconds.Note:◆ If a speaker/ microphone is connected to the transceiver whilethe VOX function is switched ON and the VOX Gain Level isconfigured to a higher, more sensitive level, louder receivedsignals may cause the transceiver to start transmission.◆ When you operate the VOX function, you must use an optionalKHS-11BL, KHS-14, KHS-15-BH, or KHS-15-OH accessory.