Motorola Astro XTL 5000

Table of Contents v
6881096C73-O June 11, 2003
3.10.1 Receiver Front-End......................................................................................................... 3-10
3.10.2 Mixer ............................................................................................................................... 3-10
3.10.3 IF Circuitry ...................................................................................................................... 3-10
3.10.4 Abacus III Back-End .......................................................................................................3-10
3.11 Frequency Generation Unit (FGU)............................................................................................... 3-11
Chapter 4 Test Equipment, Service Aids, and Tools......................... 4-1
4.1 Recommended Test Equipment .................................................................................................... 4-1
4.2 Service Aids and Recommended Tools......................................................................................... 4-2
4.3 Field Programming Equipment ...................................................................................................... 4-3
4.3.1 XTL 5000 Field Programming........................................................................................... 4-3
4.3.1.1 Dash-Mounted Radios............................................................................................. 4-3
4.3.1.2 Remote-Mounted Radios......................................................................................... 4-4
4.3.1.3 Field-Programming Items ........................................................................................ 4-4
4.3.1.4 W3 Control-Head Error Message ............................................................................ 4-4
Chapter 5 Performance Checks .......................................................... 5-1
5.1 Introduction.................................................................................................................................... 5-1
5.2 Test Setup ..................................................................................................................................... 5-1
5.3 Test Mode...................................................................................................................................... 5-1
5.3.1 Entering Test Mode .......................................................................................................... 5-1
5.3.2 RF Test Mode................................................................................................................... 5-3
5.3.3 Control Head Test Mode................................................................................................... 5-4
5.4 Receiver Performance Checks...................................................................................................... 5-5
5.5 Transmitter Performance Checks.................................................................................................. 5-6
Chapter 6 Radio Alignment Procedures............................................. 6-1
6.1 Introduction.................................................................................................................................... 6-1
6.2 ASTRO XTL 5000 Tuner Software ................................................................................................ 6-1
6.3 Radio Information .......................................................................................................................... 6-3
6.4 Transmitter Alignments.................................................................................................................. 6-3
6.4.1 PA Bias 1 Alignment......................................................................................................... 6-3
6.4.2 PA Bias 2 Alignment......................................................................................................... 6-4
6.4.3 PA Bias 3 Alignment......................................................................................................... 6-5
6.4.4 Reference Oscillator Alignment ........................................................................................ 6-6
6.4.5 Power Detector Calibration............................................................................................... 6-8
6.4.6 Tx Power Characterization ............................................................................................... 6-9
6.4.7 Tx Current Limit .............................................................................................................. 6-10
6.4.8 Tx Deviation Balance (Compensation) ........................................................................... 6-12
6.4.9 Tx Deviation Limit ........................................................................................................... 6-14
6.5 Performance Testing ................................................................................................................... 6-16
6.5.1 Bit Error Rate (BER) Test ............................................................................................... 6-16
6.5.2 Transmitter Test Pattern................................................................................................. 6-17
6.6 Mic Sensitivity Calibration............................................................................................................ 6-18
Chapter 7 Encryption ........................................................................... 7-1