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The transceiver behaves as follows according to the type of a received signal on a channel with “Mixed” configured in
Channel Type
.
0
If the transceiver receives analog signals
The transceiver behaves according to the configuration in
Audio Control (Analog)
.
0
If the transceiver receives digital signals
The transceiver behaves according to the configuration in
Audio Control (P25)
.
Configuration using KPG-D1/ D1N
0
Configuring
Audio Control (P25)
(Personality) (
Transceiver Settings > Personal > Personality > P25
Conventional (P25 Voting with NAC) > P25 > Optional Signaling)
0
Configuring
Audio Control (P25)
(Channel Edit) (
Transceiver Settings > Zone/Channel > Channel Edit > P25
Conventional (P25 Voting with NAC) > P25 > Optional Signaling)
Temporarily Disabling the Squelch (Squelch Off)
Squelch Off
is the function to disable the NAC configured for the channel on which the transceiver waits for and unmutes
the speaker upon detection of a frame.
The same as with the Monitor function, the Squelch Off function is used to monitor the availability of channels prior to
transmitting in order to avoid interfering with other parties.
Also, if an analog channel is configured in a P25 Conventional system, the Squelch Off function is used to listen to the audio
even when the speaker is muted due to a very weak carrier on an analog channel.
To use this function, the
Squelch Off
key or the
Squelch Off Momentary
key is used.
Or, pressing the
Menu
key causes the transceiver to enter Menu Mode, and then Squelch Off can be toggled between
enabled and disabled by selecting “Squelch Off”. (Refer to Common FUNC
Operating the transceiver
0
Squelch Off key
1
Press the
Squelch Off
key while
Squelch Off
is disabled.
The “
Z
” icon appears.
For the channel where
NAC Decode
is configured, the transceiver unmutes the speaker just by disabling the NAC
and detecting a frame.
The Busy LED lights green if Busy LED is enabled.
2
Press the
Squelch Off
key while
Squelch Off
is enabled.
The “
Z
” icon disappears. For a channel where
NAC Decode
is configured, Signaling Squelch is resumed.
1 P25 CONVENTIONAL SYSTEM
1.2 Using the Signaling
P25 FUNC (K)/Ver 2.20
13