Icom IC-M411 - Microphone Lock Function; AquaQuake Water Draining Function; Display Backlight

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BASIC OPERATION
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n Microphone Lock function
The Microphone Lock function electrically locks [Y]/[Z] on
the supplied microphone. This prevents accidental channel
changes and function access.
➥ While pushing [HI/LO] on the microphone, turn power ON
to toggle the Microphone Lock function ON and OFF.
[HI/LO]
[Y]/[Z]
n Display backlight
The function display and keys can be backlit for better visibil-
ity under low light conditions.
Display backlight is also adjustable via the Set mode. (p. 41)
➥ While pushing [SCAN•TAG], push [Y] or [Z] to adjust
the brightness of the LCD and key backlight.
• The backlight is adjustable in 4 levels and OFF.
n AquaQuake water draining
function
The IC-M411 uses a technology to clear water away from
the speaker grill: AquaQuake. AquaQuake helps drain water
away from the speaker housing (water that might otherwise
muffle the sound coming from the speaker). The IC-M411
emits a vibrating noise when this function is being used.
➥ While pushing and holding both [Y] and [Z] on the trans-
ceiver, turn power ON.
• A low beep tone sounds while [Y] and [Z] keys are pushed
and held to drain water, regardless of [VOL] control setting.
• The transceiver never accepts a key operation while the
Aqua-
Quake function is activated.