6
Contents
How to Display Impedance 74
6. Characterizing and Verifying Antenna Systems
Antenna Feedline System 77
Potential Problems 79
Transmission Lines/Antennas 79
Connectors 79
Typical Measurements 81
Before Installation 82
Installation 82
Maintenance 82
Installation and Maintenance Planning 83
7. Characteristics
Overview of Characteristics 86
Frequency Range Considerations 86
Phase Considerations 86
General Performance Characteristics 87
SRL Measurement Uncertainty vs System Directivity 88
SRL Measurement Uncertainty vs Connector Fault 92
Minimizing Measurement Uncertainty 92
Fault Location Distance Range and Resolution 96
Range 96
Resolution 96
Typical Distance Data in Feet 97
Distance Data in Meters 100
A. Cable Loss and Velocity Factors
Cable Loss and Velocity Factors 104
B. SCPI Command Reference
Notational conventions in this command reference 110
Fault Location Commands 112
Fault Location Command list 140
SRL commands 143
SRL Command list 150
C. COM Object Reference
COM Object Model 154
Notational Rules of COM Objects 156
Fault Location SCPI Objects 159
SRL SCPI Objects 188
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