1.1
Initiating Voice Communications (Basic Transmission and
Reception)
This section describes the basic methods for transmission and reception in a P25 Conventional system and the relevant
functions.
About Own ID
To initiate various communications using P25, a Unit ID (Own), the identification code of a transceiver, needs to be configured
for the transceiver.
A Unit ID can be configured in the range between 000001 and FFFFFF (hexadecimal), or between 1 and 16777215 (decimal).
If
Global ID
is enabled, a Unit ID is shared by all P25 Conventional and P25 Trunking systems.
If
Global ID
is disabled, a Unit ID needs to be configured for each P25 Conventional system and P25 Trunking system.
Note
Since the management systems of own ID in P25, NXDN and DMR are different from one another, an own ID needs to
be configured for each of them separately.
Configuration using KPG-D1/ D1N
0
Configuring
Unit ID (Own)
(
Transceiver Settings > Personal > System Information > P25 Conventional (P25
Voting with NAC) > Unit ID (Own))
0
Configuring
Global ID
to be enabled or disabled (
Transceiver Settings > Personal > System Information > P25
Conventional (P25 Voting with NAC) > Unit ID (Own))
About Communication Security (Encryption)
The transceiver is equipped with the Encryption function, which can enhance the confidentiality of communications by
encrypting communication data when making various communications on a P25 digital channel. (Refer to
.)
Receive
Received audio sounds from the speaker if the transceiver receives P25 digital signals, and the frequency matches the
frequency of the channel on which the transceiver has waited for or the P25 ID matches the P25 ID preconfigured for the
transceiver. When a signaling (NAC) is used, communications are possible if the received NAC matches the NAC which
the transceiver waits for.
The receiving behavior of the transceiver varies as below depending on the configuration in
Squelch Type
:
0
If “NAC” is configured in Squelch Type:
If the received NAC matches the preconfigured NAC, the transceiver disables muting and emits the received audio.
0
If “Selective Call” is configured in Squelch Type:
If the received NAC matches the NAC preconfigured for the transceiver and the received Talkgroup ID or Individual ID
matches the preconfigured Talkgroup ID or Individual ID, the transceiver unmutes the speaker and emits the received
audio.
1 P25 CONVENTIONAL SYSTEM
1.1 Initiating Voice Communications (Basic Transmission and Reception)
P25 FUNC (K)/Ver 2.20
2