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4 NXDN function
Scanning the Specific Channel Preferentially (Priority Zone-Channel)
Type
Description
Operating the transceiver
Note
Configuration using FPU
Scanning the Specific Channel Preferentially (Priority-channel Stop Tone)
Type
Description
Operating the transceiver
Note
Configuration using FPU
Scanning the Specific Channel Preferentially (Priority Scan) (Lookback/ Lookback Time A/ Lookback Time B)
Type
Description
Operating the transceiver
Note
Configuration using FPU
Scan Function (Dropout Delay Time)
Type
Description
Operating the transceiver
Note
Configuration using FPU
'■ Standard model
■ Basic model
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".
Priority display
-
Priority 1 Zone-Channel, Priority 2 Zone-Channel :
Edit > Scan Information > Scan
'■ Standard model
■ Basic model
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.
-
-
Priority-channel Stop Tone : Edit > Scan Information > Scan
'■ Standard model
■ Basic model
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.
-
-
Lookback Time A, Lookback Time B :
Edit > Scan Information > Scan
'■ Standard model
■ Basic model
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.
-
The following are conditions to resume scanning:
There is no signal to receive.
The matching state of the RAN becoming inconsistent.
Dropout Delay Time : Edit > Scan Information > Scan
Transceiver behavior :
The Priority Zone-Channel is selected or paused with Priority
Zone-Channel.
Priority
icon will light.
-
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