Icom IC-M423GE

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OTHER FUNCTIONS
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■ Using the Horn
The Horn function sounds a horn.
Connect a PA speaker as described on page 84.
q Push [HORN] to enter the Horn mode.
w Hold down [HORN] to sound a horn.
• While holding down [HORN], the horn sounds, and the screen
below is displayed.
• Rotate Dial or push [Y]/[Z]/[Ω]/[≈] to adjust the horn volume
level.
e Push [EXIT] to return to the normal operating screen.
While in the Horn mode, the transmit and receive functions
are disabled. When the transceiver is transmitting, the
Horn function is disabled.