Icom IC-F27SR Instruction Manual page 15

Pmr446 transceiver
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MONITOR
Hold down for 1 second to temporarily release the CTCSS*
DTCS*
2
) squelch mute.
Push to activate the CTCSS*
Holding down [
mute.
*
1
Contiuous Tone Coded Squelch System
*
2
Digital Tone Coded Squelch
LOCK
Hold down for 1 second to electronically lock all programmable keys
except [
], [LOCK], [SURVEILLANCE] and [SIREN].
MONI
SURVEILLANCE
Push to turn the Surveillance function OFF.
Hold down for 1 second to turn the Surveillance function ON.
• When this function is turned ON, the beep is not heard and the LED
does not light, even if a signal is received, or you push a key.
SIREN
Hold down for 1 second to emit a siren sound.
You can use this function for situations other than an emergency
alert, such as a security alarm for example.
The transceiver will emit the siren sound until you turn OFF the
power.
1
] opens any squelch and deactivates any
MONI
PANEL DESCRIPTION
2
(or DTCS*
) squelch mute.
2
1
2
1
(or
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
8

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