Icom IC-M200 Instruction Manual page 11

■ The Microphone Lock function
The Microphone Lock function locks [▲], [▼], and
[HI/LO] on the supplied microphone. The function
prevents from accidentally changing channels or
functions.
z While holding down [HI/LO] on the microphone, turn
ON the transceiver to toggle the Microphone Lock
function ON or OFF.
■ Backlight brightness level
The display and keys can be backlit for better visibility
under low light conditions.
z While holding down [SCAN], push [▲] or [▼]
to adjust the brightness of the display and key
backlight.
L The brightness level is selectable in 3 levels, or OFF.
■ The AquaQuake function
You can use the AquaQuake function to clear water
away from the speaker grill. The function helps drain
water away from the speaker housing by emitting a
vibrating noise.
z While holding down [▲] and [▼] on the transceiver
at the same time, turn ON the transceiver.
• A low beep sounds while you hold both [▲] and [▼] to
drain water, regardless of [VOL] level setting.
L While the AquaQuake function is ON, key operations
are disabled.
L " " scrolls.
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BASIC OPERATION
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