4 NXDN function
97
Scanning the Specific Channel Preferentially (
Priority Zone-Channel
)
Type
‘
■
Standard model
■
Basic model
Description
This function is used to set a particular channel from any zone with
Zone Type
(= Conventional Group) to
become a priority channel.
Priority Zone-Channel can be set only if priority is set to
“Fixed” or “Operator Selectable”.
Operating the transceiver
Priority display
Transceiver behavior :
The Priority Zone-Channel is selected or paused with Priority
Zone-Channel.
Priority icon will light.
Note
-
Configuration using FPU
Priority 1 Zone-Channel
,
Priority 2 Zone-Channel
:
Edit > Scan Information > Scan
Scanning the Specific Channel Preferentially (
Priority-channel Stop Tone
)
Type
‘
■
Standard model
■
Basic model
Description
Priority-channel Stop Tone
is the function to emit a Priority-channel Tone (1 beep) from the transceiver when
the scan pauses upon receipt of a signal and the speaker is unmuted on a Priority Channel during the scan.
Operating the transceiver
-
-
Note
-
Configuration using FPU
Priority-channel Stop Tone
: Edit > Scan Information > Scan
Scanning the Specific Channel Preferentially (Priority Scan) (
Lookback
/
Lookback Time A
/
Lookback Time B
)
Type
‘
■
Standard model
■
Basic model
Description
Lookback
is the function to periodically checks for a Priority Channel if a Priority Channel is configured for the
transceiver and the transceiver receives on a normal channel (a channel which is not Primary Channel).
Either
Lookback Time A
or
Lookback Time B
is applied for the interval to initiate checking for a signal on a
Priority Channel according to the receiving status of the Priority Channel.
Lookback Time A:
Lookback Time A
is the interval time to check during a Priority Scan for a signal on a Priority Channel without a
carrier while the transceiver receives a signal on a normal channel whose carrier is different from the carrier of
the Priority Channel.
Since the transceiver may receive a call on the Priority Channel, the time configured in
Lookback Time A
must
be shorter than the time configured in
Lookback Time B
.
Lookback Time B:
Lookback Time B
is the interval time to check during a Priority Scan for a signal on a Priority Channel which
does not match the QT/DQT in an Analog Conventional system or a Priority channel which does not match the
RAN in an NXDN Conventional system even though a carrier exists, while the transceiver receives a signal on a
normal channel whose carrier is different from the carrier of the Priority Channel.
Operating the transceiver
-
-
Note
-
Configuration using FPU
Lookback Time A
,
Lookback Time B
:
Edit > Scan Information > Scan
Scan Function (
Dropout Delay Time
)
Type
‘
■
Standard model
■
Basic model
Description
Dropout Delay Time
is the time from when the transceiver finishes receiving signals until the transceiver
resumes scanning.
The transceiver pauses scanning when the transceiver receives a call during the scan. The transceiver resumes
the scan when the time configured in
Dropout Delay Time
elapses after the transceiver finishes receiving.
Operating the transceiver
-
-
Note
The following are conditions to resume scanning:
There is no signal to receive.
The matching state of the RAN becoming inconsistent.
Configuration using FPU
Dropout Delay Time
: Edit > Scan Information > Scan
