Specifications

6
Contents
Table of Contents
9. Measuring Digital Communications Signals
Making Burst Power Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Making Statistical Power Measurements (CCDF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Making Adjacent Channel Power (ACP) Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Making Multi-Carrier Power (MCP) Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
10.Using External Millimeter Mixers (Option AYZ)
Making Measurements With Agilent 11970 Series Harmonic Mixers . . . . . . . . . . . . . . . . .82
Setting Harmonic Mixer Bias Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Entering Conversion-Loss Correction Data for Harmonic Mixers . . . . . . . . . . . . . . . . . . . .85
Making Measurements with Agilent 11974 Series Preselected Harmonic Mixers . . . . . . . .86
Frequency Tracking Calibration with Agilent 11974 Series Preselected Harmonic Mixers .88
11.Demodulating AM and FM Signals
Measuring the Modulation Rate of an AM Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Measuring the Modulation Index of an AM Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Demodulating an AM Signal Using the ESA Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
Demodulating an FM Signal Using the ESA-E Series (Requires Option BAA) . . . . . . . . . .98
12.Using Segmented Sweep (ESA-E Series Spectrum Analyzers)
Measuring Harmonics Using Standard Sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Measuring Harmonics Using Segmented Sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Using Segmented Sweep With Limit Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106
Using Segmented Sweep to Monitor the Cellular Activity of a cdmaOne Band . . . . . . . .108
13.Stimulus Response Measurements (ESA Options 1DN and 1DQ)
Making a Stimulus Response Transmission Measurement . . . . . . . . . . . . . . . . . . . . . . . . .112
Calculating the N dB Bandwidth Using Stimulus Response . . . . . . . . . . . . . . . . . . . . . . . .114
Measuring Stop Band Attenuation Using Log Sweep (ESA-E Series) . . . . . . . . . . . . . . . .116
Making a Reflection Calibration Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
Measuring Return Loss using the Reflection Calibration Routine . . . . . . . . . . . . . . . . . . .120
14.Demodulating and Viewing Television Signals
(ESA-E Series Option B7B)
Demodulating and Viewing Television Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
Measuring Depth of Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
15.Concepts
Resolving Closely Spaced Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
Harmonic Distortion Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132
Time Gating Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .133
Trigger Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153