User's Manual

TABLE OF CONTENTS
M32450-25-FCCRpt.doc Page 2
SECTION 1: THEORY OF OPERATION ................................................................................. 3
General Block Diagram................................................................................................ 3
General Block Diagram Definitions
..................................................................... 3
M32450-25 Mobile Radio Section Descriptions ......................................................... 5
Microcontroller
.................................................................................................... 5
Support Circuitry ................................................................................... 5
Inputs/Outputs
.................................................................................................... 5
Modem
.............................................................................................................. 6
VLogic and Digital Ground
................................................................................. 6
Receiver 1 Front-End
......................................................................................... 7
Receiver 1 IF
...................................................................................................... 7
Transmit Modulation
........................................................................................... 7
Injection Synthesizer
.......................................................................................... 8
Transmitter/TR Switch
........................................................................................ 8
Power and Analog Ground
................................................................................. 8
SECTION 2: FACTORY TEST PROCEDURE ......................................................................... 9
Equipment List ............................................................................................................. 9
Programming and Configuring Mobile Radio.......................................................... 10
Adjustment / Alignment Procedures ........................................................................ 11
Receiver Injection
............................................................................................. 11
Receiver 1
........................................................................................................ 11
Receiver 2
........................................................................................................ 11
Transmit Data
................................................................................................... 12
Transmit Power Control
.................................................................................... 12
Receive Data
.................................................................................................... 13
Final Test
.......................................................................................................... 13
Uplink Hardware Timing Verification
................................................................ 15
Downlink Hardware Timing Verification
............................................................ 17
SECTION 3: FCC LABEL ...................................................................................................... 19
M32450-25 Data Transceiver FCC Label Placement ............................................... 19
M32450-25 Data Transceiver FCC Label .................................................................. 19
APPENDIX A: M32450-25 CIRCUIT BOARD DIAGRAMS ................................................... 20
APPENDIX B: M32450-25 TEST DATA SHEET ................................................................... 21