I Microphone Lock Function - Icom IC-M502 Instruction Manual

• "DUP" appears for duplex channels.
• "A" appears for simplex channels.
Weather channels
There are 10 weather channels. Used for monitoring weather
channels from the NOAA (National Oceanographic and At-
mospheric Administration) broadcasts.
The transceiver can detect a weather alert tone on the se-
lected weather channel while receiving the channel, during
standby on a regular channel or while scanning. See
"Weather alert" on p. 31.
q Push [CH/WX] once or twice to select a weather channel.
• "WEATHER" appears when a weather channel is selected. "WX
ALT" appears when the weather alert function is in use. (p. 31)
w Rotate the channel selector to select a channel.
• Channels are memorized separately for each channel group.

I Microphone lock function

The microphone lock function electrically locks the [Y]/[Z]
and [HI/LO] switches on the supplied microphone. This pre-
vents accidental channel changes and accidental function ac-
cess.
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BASIC OPERATION
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