User Manual

TABLE OF CONTENTS
298994.DOC Page 2
SECTION 1: THEORY OF OPERATION .................................................................................................... 3
General Block Diagram.................................................................................................................. 3
General Block Diagram Definitions
..................................................................................... 3
Input/Output ........................................................................................................... 3
System Controller................................................................................................... 3
Modems
........................................................................................................... 4
Diversity Reception
.......................................................................................... 4
RX Injection............................................................................................................ 4
Transmitter ............................................................................................................. 4
Receiver 1/ 2/ 3...................................................................................................... 4
Power Supply......................................................................................................... 4
IP4B Base Station Section Descriptions ..................................................................................... 5
System Controller
................................................................................................................ 5
Input/Output
........................................................................................................................ 5
Modem Switching
................................................................................................................ 5
Modem
...............................................................................................................................6
Receive Signal Strength Indication Comparator
................................................................. 6
Baseband ............................................................................................................................ 7
Receiver Board ................................................................................................................... 7
IF Amplifier
.......................................................................................................................... 7
Receiver Injection................................................................................................................ 8
Exciter Board....................................................................................................................... 8
Analog Modulation
.............................................................................................................. 9
Phase Locked Loop ............................................................................................................ 9
Power Amplifier................................................................................................................. 10
SECTION 2: FACTORY TEST PROCEDURE .......................................................................................... 11
Equipment List ............................................................................................................................. 11
Programming and Configuring the Base Station ..................................................................... 12
Adjustment / Alignment Procedure............................................................................................ 13
Receiver Injection
.............................................................................................................. 13
Receiver............................................................................................................................ 13
Diversity Reception
........................................................................................................... 14
Receive Data
..................................................................................................................... 15
Exciter ............................................................................................................................. 16
Power Amplifier
................................................................................................................. 16
SECTION 3: FCC LABEL.......................................................................................................................... 17
IP4B Base Station FCC Label Placement .................................................................................. 17
IP4B Base Station FCC Label ..................................................................................................... 17
APPENDIX A: IP4B CIRCUIT BOARD DIAGRAM.................................................................................... 18
APPENDIX B: IP4B TEST DATA SHEET.................................................................................................. 22