User's Manual

TABLE OF CONTENTS
637246.DOC Page 3
SECTION 1: THEORY OF OPERATION .............................................................................................. 4
General Block Diagram.................................................................................................................. 4
General Block Diagram Definitions
..................................................................................... 4
Input/Output ........................................................................................................... 4
System Controller................................................................................................... 4
Modems
........................................................................................................... 5
Diversity Reception
.......................................................................................... 5
RX Injection............................................................................................................ 5
Transmitter ............................................................................................................. 5
Receiver 1/ 2/ 3...................................................................................................... 5
Power Supply......................................................................................................... 5
B64450G25 Base Station Section Descriptions.......................................................................... 6
System Controller
................................................................................................................ 6
Input/Output
........................................................................................................................ 6
Modem Switching
................................................................................................................ 6
Modem
...............................................................................................................................7
Receive Signal Strength Indication Comparator
................................................................. 7
Baseband
............................................................................................................................ 8
Receiver Board ................................................................................................................... 8
IF Amplifier .......................................................................................................................... 8
Receiver Injection
................................................................................................................ 9
Exciter Board....................................................................................................................... 9
Analog Modulation ............................................................................................................ 10
Phase Locked Loop
.......................................................................................................... 10
Power Amplifier................................................................................................................. 11
SECTION 2: FACTORY TEST PROCEDURE .......................................................................................... 12
Equipment List ............................................................................................................................. 12
Programming and Configuring the Base Station ..................................................................... 13
Adjustment / Alignment Procedure............................................................................................ 14
Receiver Injection
.............................................................................................................. 14
Receiver............................................................................................................................ 14
Diversity Reception ........................................................................................................... 15
Receive Data
..................................................................................................................... 16
Exciter
............................................................................................................................. 17
Power Amplifier................................................................................................................. 17
SECTION 3: FCC LABEL.......................................................................................................................... 18
B64450G25 Base Station FCC Label Placement....................................................................... 19
B64450G25 Base Station FCC Label.......................................................................................... 19
APPENDIX A: B64450G25 TEST DATA SHEET ...................................................................................... 59