Icom IC-M601 - I Lock Functions; I Display Backlighting; I Monitor Function

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HM-134 REMOTE-CONTROL MICROPHONE
■ Lock functions
The lock function electronically locks keys and switches to
prevent accidental changes and function access from the mi-
crophone.
• All keys, switches and controllers on the transceiver are functional.
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Activating the lock function
➥ While pushing and holding
[H/L], push [SQL•MONI•L] to
turn the lock function ON and
OFF.
• “ ” appears.
•Only [PWR], [PTT], [H/L],
[SQL•MONI•L], [VOL]+[Y]/[Z]
and [SQL]+[Y]/[Z] are func-
tional.
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Activating the all key lock function
➥ While pushing and holding
[H/L], turn the power ON by
pushing [PWR] to turn the all
key lock function ON and OFF.
• “ ” flashes.
• Only [PWR] and [PTT] are func-
tional.
■ Display backlighting
The function display and switches can be backlit for better
visibility under low light conditions. And the backlighting con-
dition can be adjusted independently from the transceiver.
q Push and hold [VOL•DIM] for 1 sec. to enter backlight ad-
justing mode.
• “ ” with number of backlight level appears in the channel com-
ment indicator.
w Push [Y]/[Z] to adjust the backlight level.
•The backlight level is adjustable between 0 (lights OFF) and 7
(brightest).
■ Monitor function
The monitor function releases the noise squelch mute of the
microphone only. (An independent noise squelch system is
employed.)
➥ Push and hold [SQL•MONI•L] for 1 sec. to activate the
monitor function.
• “ ” flashes and audio is emitted.
• Any key, except [Y]/[Z], cancels the monitor function.
Appears when the lock
function is in use.
Flashes when the all lock
function is in use.