235MENU MODED Sidetone Level “SIDETONE LV”When using an optional headset (supplied from third party*)via the adapter, the transceiver outputs your transmittedvoice to the headset for monitoring.*Ask your dealer in details.• OFF (0) : The sidetone function is OFF.• 001 to 080 : Sets the sidetone level from 1 to 80.D Transmitting Microphone Selection“TX MIC SEL”Set the active microphone when pushing microphone’s PTTswitch.The item allows you to control which connected microphoneis permitted to transmit.• MIC1 : Selects microphone1.• MIC2 : Selects microphone2.• MIC1+2 : Selects both microphone1 and microphone2.D Dimmer Mode “DISP MODE”The light sensor which is built into the display is used for thisfunction.Set the OLED dimmer mode.• OFF : The dimmer function is OFF.• AUTO : Sets the dimmer automatically depending on localbrightness.• MANUAL : Sets the dimmer depending on Dimmer Brightness(Low) “DISP LOW.”D Dimmer Brightness (Low) “DISP LOW”Set the lower brightness level in the automatic adjustmentrange when “AUTO” is selected at the “Dimmer Mode.”The transceiver automatically adjusts its display brightnessby the current lighting conditions.• OFF : The key backlight sets OFF.• 001 to 049 : Sets the low dimmer brightness level from 1 to 49.D Dimmer Brightness (High) “DISP HIGH”Set the upper brightness level in the automatic adjustmentrange when “AUTO” is selected in the Dimmer Mode.• 050 to 100 : Sets the dimmer brightness level from 50 to 100.D Dimmer Brightness (Manually) “DISP MAN.”Set the brightness manually to suit your own preferences.• 000 to 100 : Sets the dimmer level manually from 0 (OFF) to 100.D Dimmer Response “DISP RESP.”Set the dimmer switching speed when selecting “AUTO” atthe “Dimmer Mode.”• STANDARD : Selects normal switching speed.• FAST : Selects fast switching speed.05