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8 NXDN CONVENTIONAL SYSTEM
8.2 Using the Signaling
Transceiver Operation during the Scan
If the Monitor key is pressed during the scan, the scan continues. In this case, the transceiver disables the RAN code and
Optional Signaling, and unmutes the speaker upon detection of an NXDN frame in the same manner as when the scan is
deactivated.
If the Monitor Momentary key is pressed during the scan, the transceiver disables the RAN code and Optional Signaling,
and unmutes the speaker upon detection of an NXDN frame in the same manner as when the scan is deactivated. The
scan continues in this case, too. Pressing the Monitor Momentary key never causes the scan to be deactivated.
Unmuting the Speaker by Linking with the Microphone (Off-hook Decode)
Supported Models: Mobile
Off-hook Decode is the function to enable the transceiver to decode Optional Signaling even if the microphone is in the off-
hook state.
The transceiver behaves as follows according to the configuration for Off-hook Decode.
Configuration
The transceiver opens the squelch according to the configuration for Audio Control while the microphone is in either
Enabled
the on-hook state or off-hook state.
The transceiver unmutes the speaker when the transceiver detects a frame if the microphone is in the off-hook state.
Disabled
The transceiver opens squelch according to the configuration for Audio Control if the microphone is in the on-hook
state.
Note
• Stun can be activated regardless of the status of Off-hook Decode and the microphone on- or off-hook state.
• The matching state of Optional Signaling will be reset by hooking the microphone on a hanger (On-hook state) after receiving a call by
Optional Signaling.
• The microphone hook status can also be switched on by the AUX Input port to which "External Hook" is assigned. (Refer to
Available Functions for AUX Input Ports on page
Configuration using KPG-175D
Configuring the Off-hook Decode to be enabled or disabled (
FUNC (K)/Ver 1.20
Table 8-5 Off-hook Decode
Description
182.)
See
Edit > Optional Features > Common 1)
CONTENTS
INDEX
18.1
57
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