Icom IC-A220T Instruction Manual page 29

D Group memory channel display
"GRP MEMORY"
Selects whether the label is displayed or not.
• CH: Only the memory channel number is displayed.
• LABEL: The label is also displayed.
D Transmitting microphone selection
"TX MIC SEL"
Selects the active microphone when pushing microphone's
PTT switch.
This setting allows you to control which connected
microphone is permitted to transmit.
• MIC1: Selects microphone 1.
• MIC2: Selects microphone 2.
• MIC1+2: Selects both microphone 1 and microphone 2.
D Dimmer mode "DISP MODE"
The dimmer function dims function display and key
illumination brightness. You can select a dimmer functioning
mode to suit your preference.
• OFF: The dimmer function is OFF.
• AUTO: Automatically sets the dimmer according to the current
lighting condition.
• MANUAL: Manually sets the dimmer in the Manual dimmer control
"DISP MAN" item. (p. 20)
D Dimmer auto mode "DISP AUTO"
Sets the method to automatically control the dimmer
brightness.
• PHOTO: Controls the dimmer brightness by using the light
sensitive detector. (p. 2)
• EXT: Controls the dimmer brightness by using an external
voltage.
D External dimmer control "DISP EXT"
Sets the maximum voltage for the external voltage dimmer
control.
• 14VDC: The maximum external voltage is 14 V DC.
• 28VDC: The maximum external voltage is 28 V DC.
D Dimmer brightness (Low) "DISP LOW"
Sets the minimum brightness level in the automatic
adjustment range.
• OFF : Turn OFF the minimum dimmer brightness setting.
• 001 to 049: Sets the minimum dimmer brightness level to between
1 and 49.
5
MENU MODE
05
22