8 
Contents
Using the M1970 Series Mixers with X-Series Signal Analyzers (Option 
EXM)          168
Operating precautions          168
Equipment set up          169
Operation          171
Amplitude calibration          172
LO adjustment          172
Viewing the external mixer setup screen          173
14  Option Esc External Source Control 
Using Option ESC with the Keysight MXG Signal Sources.          176
Lan          177
Loading conversion loss data for the PXA Signal Analyzer          177
Signal ID          182
Image shift          182
Using the M1970 Series Mixers with X-Series Signal Analyzers (Option 
EXM)          184
Operating precautions          184
Equipment set up          185
Operation          187
Amplitude calibration          188
LO adjustment          188
Viewing the external mixer setup screen          189
15  Concepts
Resolving Closely Spaced Signals          192
Resolving signals of equal amplitude          192
Resolving small signals hidden by large signals          192
Trigger Concepts          194
Selecting a trigger          194
Time Gating Concepts          197
Introduction: Using Time Gating on a Simplified Digital Radio Signal          197
How time gating works           199