User's Manual
Table Of Contents
- 1 REGULATORY AND SAFETY INFORMATION
- 2 PREFACE
- 3 SPECIFICATIONS
- 4 GENERAL INFORMATION
- 5 OPERATION
- 5.1 CONVENTIONAL STATION CONFIGURATIONS
- 5.2 ENCRYPTED STATION CONFIGURATIONS
- 5.3 MODES OF OPERATION
- 5.4 ENCRYPTION FORMATS
- 5.5 P25 CONVENTIONAL CONFIGURATIONS
- 5.6 PROGRAMMABLE FEATURES FOR CONVENTIONAL STATIONS
- 5.6.1 Conventional Stations (Setup)
- 5.6.2 Main Station Data
- 5.6.3 Push-to-Talk Options
- 5.6.4 Other Potentiometer Settings
- 5.6.5 Carrier Control Timer
- 5.6.6 Squelch Tail Elimination
- 5.6.7 Drop Out Delay Timer
- 5.6.8 Control Shelf Options
- 5.6.9 Station Remote Control
- 5.6.10 Auxiliary Control Relay
- 5.6.11 Squelch Operated Relay
- 5.6.12 Channel Guard Monitor
- 5.6.13 System Module - Digital Signal Processing
- 6 MASTR III ADC STATION DESCRIPTION
MM102558V1 R1A
Transmit
Synthesizer
Receiver
Synthesizer
Receiver
Front End
System
Module
Receiver IF
Power
Module
Figure 6-1: Advanced Digital Capable T/R Shelf (Equipped for Conventional FM)
6.1.1 Interface Board
The Interface Board 19D902975, shown in Figure 6-2, is mounted in the top of the ADC T/R shelf and
provides the interface between the System Module and the RF Modules, and performs the following
functions:
• Control Interface from System Module to RF Modules.
• Telephone line interface with current level detection for remote control.
• Audio PA for local speaker.
• Transmitter power output level and control.
• Manual adjustment with front panel access of receiver squelch and local speaker volume.
• LED indication of PA Alarm.
• Various connectors including RS232 programming port and Mic/Handset port.
• Alarm and monitor junctions of PA output power for MASTR III applications.
6.1.2 Backplane
The Backplane Board CB101126V1, shown in Figure 6-2, is used to interconnect power, low level audio,
IF and data signaling between the MASTR III RF, Power and System Modules.
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