User's Manual

MM102554V1 REV B

8. STATION TEST AND ALIGNMENT PROCEDURES

8.1 INTRODUCTION

This chapter provides instructions for testing and aligning the MASTR III Conventional or P25 Base

Station. The base station is normally pre-aligned at the factory and ready to install. However, after initial

installation and prior to placing the equipment into operation, it should be rechecked to ensure it is

operating properly and meets the required specifications.

These procedures assume the receiver and transmitter modules have been previously tuned and aligned

and should be used whenever a module or system component is repaired or replaced.

8.2 GENERAL

The MASTR III ADC Base Station comes pre-programmed and ready to install, the only adjustments

needed are the required Line Output Level, the Line Input Level necessary to produce Standard

Deviation, and the Line Cancellation for 2-wire Tone Remote Orientation. These adjustments can be

made using the PC Programming option TQS3353, the Utility PC software TQ0619, or with the Utility

Handset SPK9024.

The rated system deviations are as follows:

• 5.0 kHz Standard (25 kHz IF)

• 4.0 kHz NPSPAC

• 2.5 kHz Narrow (12.5 kHz narrowband)

• 2.8 kHz P25

8.3 SUPPORT EQUIPMENT REQUIRED

The following equipment and software may be require to perform the MASTR III ADC Base station

alignment and tests:

8.3.1 Hardware

Table 8-1: Hardware Requirements

DESCRIPTION MODEL NUMBER PURPOSE

Communication Test Set IFR 1200, 1500 or

equivalent

System test and alignment

Directional Coupler Narda 3020A or

equivalent

Test output power

RF Coaxial Load Resistor Bird 8235 Test and alignment

RF Power Meter with 3%

measurement accuracy

Boonton

4220A/51033er or

equivalent

Test output power

Attenuator, 10 dB, 100 W Bird 8343-100 Test and alignment