![background image](http://html.mh-extra.com/html/icom/ic-m23/ic-m23_instruction-manual_612745025.webp)
D
Dual/Tri-watch function
“dt”
(Not available with Holland version)
Set the watch type to Dualwatch or Tri-watch. (p. 16)
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Monitor key action
“Sq”
The monitor key temporarily opens the squelch. This item sets
the key action.
• Pu (PUSH) : The Monitor function is activated by holding down
[MONI]
(VOL/SQL). The squelch stays open while
holding down the key.
• Ho (HOLD) : The Monitor function is activated by holding down
[MONI]
(VOL/SQL) for 1 second. The squelch stays
open until any key is pushed.
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Automatic backlighting
“bL”
This function is convenient for night-time operation. The
backlight can be selected from ON and OFF.
• The backlight is automatically activated when any key except
[PTT]
is pushed.
• The backlight is automatically turned OFF after 5 seconds of inac-
tivity.
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LCD contrast setting
“LC”
Set the LCD contrast level to High contrast or Low contrast.
The LCD contrast level has little effect during indoor use.
19
7
SET MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Dualwatch function
(default)
Tri-watch function
Push
Push setting (default)
Hold setting
Push
Auto backlighting ON
(default)
Auto backlighting OFF
Push
High contrast (default)
Low contrast
Push