INTRODUCTION

When an LTR trunked radio user wants to communicate with another radio, the user’s radio sends a “channel/talkgroup request” to the home repeater. The system then sends back a “channel/talkgroup grant” to the user’s radio. The channel/talkgroup grant message contains the number of a “go to” repeater to tell the radio which repeater to use. This “go to” repeater can be the same as the radio’s home repeater or another repeater in the system.

The radio uses the “go to” repeater for transmission. Once the transmission has ended, this repeater is available for other users.

PR400™ RADIO FEATURES

Radio-Wide Features

16 Conventional Channels

Up to 4 Sites and 16 Talkgroups

Up to 20 Repeaters per Site

2 Programmable Feature Buttons

Option Board Expandability

Busy Channel Lockout

High/Low Power Settings

Transmit Time-Out Timer

Monitor and Sticky Permanent Monitor

System Scan with 2 Priority Levels and Revert Scan

6

LTR Trunked Features

MDC 1200 Signaling

 

-

Selective Radio

-

MDC Pre-Time

 

 

Inhibit Decode

-

PTT ID Decode

 

-

Radio Check

-

DOS

 

 

Decode

 

 

 

 

 

 

 

Conventional Signaling Features

MDC 1200 Signaling

 

 

 

 

-

Selective Radio

-

PTT ID Encode/

 

 

Inhibit Decode

 

 

Decode

 

 

 

 

 

Quik-Call II Signaling

 

 

 

 

-

Call Alert Decode

-

Selective Call

 

 

 

 

 

Decode

 

 

 

 

 

DTMF Signaling

 

 

 

 

-

DTMF PTT ID

 

 

 

 

 

Encode

 

 

 

 

 

 

 

 

 

English

Page 8
Image 8
Motorola manual PR400 Radio Features, Radio-Wide Features, LTR Trunked Features, Conventional Signaling Features