Icom IM402SA, IM402A instruction manual Monitor function, Push Y or Z to select the desired channel

Blinks when the Monitor function is in use.

■Display backlighting

The function display and keys can be backlit for better visibil- ity under low light conditions. The backlighting condition can also be adjusted independently from the transceiver.

COMMANDMIC® HM-127 11

■Dualwatch/Tri-watch operation

qPush [Y] or [Z] to select the desired channel.

•Push [CH/WX• DW U/I/C] several times while pushing [H/L] to select the channel group (USA, INT, CAN), if desired.

qPush [VOL• DIM ] for 1 sec. to enter Backlight adjusting mode.

•“ ” with the number of the backlight level appears in the channel comment indicator.

wPush [Y]/[Z] to adjust the backlight level.

•The backlight level is adjustable between 0 (light OFF) and 7 (brightest).

Appears while in the Backlight adjustment mode.

wPush [CH/WX• DW U/I/C] for 1 sec. to start Dualwatch or Tri-watch.

•“DUAL” appears during Dual-

watch; “TRI” appears during Tri-
watch.
• A beep tone sounds when a sig-
nal is received on Channel 16.
• Tri-watch becomes Dualwatch
when receiving a signal on call	Appears when the Dual or
channel.
• Dualwatch or Tri-watch can be	Tri-watch function is in use.
selected in the transceiver’s Set
		11
mode.

■Monitor function

The monitor function releases the noise squelch mute of the microphone only. (An independent noise squelch system is employed.)

➥ Push [SQL• MONI L] for 1 sec.

to activate the Monitor func- tion.

• “ ” blinks and audio is emitted.

• Any key cancels the Monitor function.

eTo cancel Dualwatch/Tri-watch, push [CH/WX• DW U/I/C] again.

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