Technical Manual
Table Of Contents
- Front Cover
- Foreword
- Table of Contents
- Safety
- ASTRO Digital XTS 3000 Model Chart (“A” Models)
- Portable Radio Model Numbering System
- ASTRO Digital XTS 3000 Model Chart (”B” Models)
- ASTRO Digital XTS 3000 R (Ruggedized) Model Chart
- ASTRO Digital XTS 3000 R (Ruggedized) Yellow Model Chart
- Model History Tables
- Glossary
- Introduction
- General Overview of an ASTRO Digital XTS 3000 Radio
- Radio Power
- VHF/UHF Transceiver Board Detailed Theory of Operation
- 800MHz Transceiver Board Detailed Theory of Operation
iv
List of Figures
Figure 1 Controller Board/Vocoder Board Interconnection. . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Figure 2 B+ Routing for VHF/UHF Transceiver Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Figure 3 B+ Routing for 800MHz Transceiver Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Figure 4 B+ Routing for Controller Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Figure 5 +5V Routing for Vocoder Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Figure 6 Vocoder Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Figure 7 Controller Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Figure 8 Audio Power Amplifier Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Figure 9 DSP RSSI Port - RX Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
Figure 10 DSP RSSI Port - TX Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Figure 11 Host SB9600 and RS232 Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10
Figure 12 Universal (Side) Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Figure 13 Controller Connector —- J101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Figure 14 Control Top Flex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
Figure 15 Controller Memory Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Figure 16 Vocoder Memory Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
List of Tables
Table 1 Option Select Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
Table 2 Submersible Radio Torque Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
Table 3 Power-Up Self-Check Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Table 4 Standard Operating Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
List of Schematics, Circuit Boards, Exploded Views,
and Parts Lists
Radio Interconnect Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2
NLD8898B/C/D VHF RF Board Schematic Diagram, Sheet 1 of 3. . . . . . . . . . . . . . . . . . . . . . . . . . 13-3
NLD8898B/C/D VHF RF Board Schematic Diagram, Sheet 2 of 3. . . . . . . . . . . . . . . . . . . . . . . . . . 13-4
NLD8898B/C/D VHF RF Board Schematic Diagram, Sheet 3 of 3. . . . . . . . . . . . . . . . . . . . . . . . . . 13-5
NLD8898B/C/D VHF RF Board Component Location Detail and Parts List. . . . . . . . . . . . . . . . . . 13-6
NLD8898H VHF RF Board Schematic Diagram, Sheet 1 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-8
NLD8898H VHF RF Board Schematic Diagram, Sheet 2 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-9
NLD8898H VHF RF Board Schematic Diagram, Sheet 3 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-10
NLD8898H VHF RF Board Component Location Detail and Parts List . . . . . . . . . . . . . . . . . . . . 13-11
NLE4249A UHF Range 1 RF Board Schematic Diagram, Sheet 1 of 3 . . . . . . . . . . . . . . . . . . . . . . 13-13
NLE4249A UHF Range 1 RF Board Schematic Diagram, Sheet 2 of 3 . . . . . . . . . . . . . . . . . . . . . . 13-14
NLE4249A UHF Range 1 RF Board Schematic Diagram, Sheet 3 of 3 . . . . . . . . . . . . . . . . . . . . . . 13-15
NLE4249A UHF Range 1 RF Board
Component Location Detail and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-16
NLE4249D, NLE4250E UHF Range 1 and 2 RF Board
Schematic Diagram, Sheet 1 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-18
NLE4249D, NLE4250E UHF Range 1 and 2 RF Board
Schematic Diagram, Sheet 2 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-19
NLE4249D, NLE4250E UHF Range 1 and 2 RF Board
Schematic Diagram, Sheet 3 of 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-20
NLE4249D, NLE4250E UHF Range 1 and 2 RF Board
Component Location Detail and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-21