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Table Of Contents
Introduction 3
Jumpstart, or “Real hams don’t read manuals!” 3
Specifications 4
An Important Word About Power Levels 4
Important Safety Warning 4
Getting to know your AT-200ProII 5
Front Panel: 5
Back Panel: 6
Installation 7
Basic Operation 10
Using the Front Panel Buttons 10
User Configuration Options 10
Transmitting and Receiving 13
Bypass LED 13
Tuning 14
Basic Tuning Operation 14
Manual Memory Tune 14
Manual Full Tune 15
Bypass 15
Error Indication 16
Advanced Operation 18
Manual Inductor/Capacitor Adjustments 18
High/Low Z Relay Adjustment 18
Manual Memory Store 18
Status Check 19
Application Notes 20
Mobile Operation 20
Internally Generated RF Noise 20
MARS/CAP Coverage 20
Application Hint for Tuning with the Kenwood TS-480HX 21
Theory of Operation 22
Some basic ideas about impedance 22
Transmitters, transmission lines, antennas, and impedance 22
The LDG AT-200ProII 24
Quick Reference 26
A Word About Tuning Etiquette 26
Care and Maintenance 27
Technical Support 27
Two-Year Transferrable Warranty 27
Out Of Warranty Service 27
Returning Your Product For Service 28
Product Feedback 28