Participating In An On-Going Voice Call Midway Through The Call (Late Entry); Searching Whether The Transceiver Receives A Call (Scan); Transmitting; Restricting The Continuous Transmission Duration (Time-Out Timer) - Kenwood NEXEDGE NX-200 Function Reference

8 NXDN CONVENTIONAL SYSTEM
8.1 Initiating Voice Communications (Basic Transmission and Reception)

Participating in an On-going Voice Call Midway Through the Call (Late Entry)

Late Entry is the function to participate in on-going voice calls even if the transceiver receives a voice call midway through
the call.
The transceiver in an NXDN Conventional system can participate in an on-going voice call by decoding control data always
sent along with audio data, even if the transceiver receives a voice call midway through the call.

Searching Whether the Transceiver Receives a Call (Scan)

Using the Scan function, the transceiver can check each channel in turn whether the channel has a signal. If a channel has
a signal, the transceiver receives the signal on the channel.
The following scan functions can be used in an NXDN Conventional system.
• Single Scan
• Multi Scan
• List Scan
• Priority Scan
Refer to 19 SCAN on page 436

Transmitting

Transmitting can be initiated by pressing the PTT switch, or by selecting an NXDN ID and then pressing the PTT switch.
When a signaling (RAN) is used, the transceiver sends the RAN code. In this case, if the transmitted RAN code matches
the RAN code preconfigured for the receiving transceiver, the transceivers can communicate.

Restricting the Continuous Transmission Duration (Time-out Timer)

Time-out Timer (TOT) is the function to restrict the duration for the transceiver to continuously transmit.
This function is used to prevent a user from occupying a repeater or frequency which is shared with other users. The
transceiver automatically stops transmitting and releases the channel if it continuously transmits longer than the configured
time.
Time-out Timer can be configured for each zone. Also, timers, such as TOT Pre-alert, TOT Rekey Time, and TOT Reset
Time, relevant to Time-out Timer can be configured.
TOT Pre-alert
TOT Pre-alert tone is used to notify a user that a continuous transmission is about to end by the Time-out Timer. The TOT
Pre-alert Tone sounds from the transceiver before the transceiver stops the continuous transmission by the Time-out
Timer.
Example: Time-out Timer: 30 s, TOT Pre-alert: 4 s
Note
If "Off" is configured for TOT Pre-alert, no TOT Pre-alert tone will sound from the transceiver.
FUNC (K)/Ver 4.00
for details of Scan.
PTT
Press
TOT Count Start
TOT Pre alert Alert Start
Time 0 s
Figure 8-2 TOT Pre-alert
Transmit End
Transmit Release
Expire TOT
TOT
Pre-alert
Alert End
Tone
26 s 30 s
CONTENTS INDEX 114