■ Setting the microphone gainAdjusts the microphone gain.q Rotate [VOL] to turn the trans-ceiver power OFF.w Set [ROTARY SELECTOR] toany channel other than Chan-nel 16.e While pushing and holding[Lower], rotate [VOL] to turn thepower ON and enter the micro-phone gain adjustment mode.r Push [Upper] to increase, orpush [Lower] to decrease themicrophone gain.• The adjustable range is 1 (mini-mum) to 4 (maximum).• A beep sounds after pushing[Upper] or [Lower].If the level is set on 1 or 4, anerror beep sounds after push-ing.Therefore, you can determine the current level setting by the typeof beep that sounds.t Rotate [VOL] to turn the power OFF, then ON to exit the micro-phone gain adjustment mode.NOTE:• This operation may not be available, depending on the preset-ting. Ask your dealer for details.• When using the VOX function, we recommend setting the mi-crophone gain to 3. However, you can adjust it to suit your op-erating environment (including your headset performance).183BASIC OPERATION1234567891011121314151617181920[VOL][Upper][Lower][ROTARY SELECTOR]