Table Of Contents - Decatur Electronics SI-2 Technical Manual

This manual is divided into two sections: SI Arcade, and SI-2
Introduction to the System Interface (SI Arcade)™ Unit ......................................................... 6
Standard Package .............................................................................................................................. 6
Default Settings ................................................................................................................................. 6
Options ............................................................................................................................................. 6
Operation
SI Arcade Antenna Operation and Circuitry ......................................................................7
Mechanical Drawings ...................................................................................................8
Exploded View .........................................................................................................10
Component Placement Map ................................................................................................................12
Block Diagram .............................................................................................................15
Schematics .......................................................................................................................16
Microwave Module ..............................................................................................................20
Signal Processing Printed Circuit Board (PCB) S780-100 ..............................................................21
Preamplifiers ............................................................................................................................. 21
Analog to Digital (A/D) Converter .................................................................................................21
Digital Signal Processing ...................................................................................................22
Second Crystal Check .............................................................................................23
Reset Circuit .....................................................................................................................23
Power Supply .............................................................................................................23
Flash Memory ...................................................................................................................24
Low Voltage and RFI Settings .......................................................................................................24
Serial Communications ........................................................................................................24
SI Arcade Antenna Specifications ...............................................................................................25
Processor ....................................................................................................................................25
General .......................................................................................................................................25
Mechanical .................................................................................................................................25
Accuracy ...................................................................................................................................25
DB-9 Connector Pinout ................................................................................................................25
Parts List .......................................................................................................................... 26
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TABLE OF CONTENTS

SI ARCADE MODEL
....................................................................................................................6