Icom IC-M90E Instruction Manual page 23

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D Dual/Tri-watch function "dt"
This item selects dual or tri-watch as desired. See p. 14 for
details.
Dualwatch function (default)
D Monitor switch action "Sq"
The monitor switch action cuts off the squelch function tem-
porarily. This switch action contains PUSH (Pu) or HOLD (Ho)
settings as shown below.
• PU (PUSH): After pushing [SQL•
opens and emits audio. The squelch is held open while
continuously pushing and holding [SQL•
fault)
• HO (HOLD): After pushing [SQL•
opens and emits audio even [SQL•
To close the squelch, push any switch.
Push
Push setting (default)
Push
Tri-watch function
] for 1 sec., the squelch
MONI
]. (de-
MONI
] for 1 sec., the squelch
MONI
] is released.
MONI
Hold setting
D Backlighting function "bL"
This function is convenient for nighttime operation. The back-
lighting brightness can be adjusted from OFF, 1 (dark)–3
(bright); 3 (default). Select 1–3 to turn this function ON.
• The automatic backlighting turns the backlighting ON when any key
except for [PTT] is pushed.
• The backlighting is automatically turned OFF after 5 sec. of inactivity.
Backlighting ON (default)
D LCD contrast selection "LC"
The contrast of the LCD can be adjusted from 4 levels.
• 1 (bright)–4 (dark); 3 (default)
Push
default
SET MODE
Push
Backlighting OFF
bright
8
8
18

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