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Adjustments ESG Family Signal Generators
FM Path Offset Calibration
5-14 Calibration Guide
FM Path Offset Calibration
Description
This test is used to remove the offsets associated with the various FM1 and FM2 audio
paths on the reference board. When FM is enabled, voltage offsets on the reference and
synthesizer boards appear as frequency shifts on the synthesizer VCO. By using a
frequency counter to measure the frequency of the VCO, the voltage offsets can be
quantified. The voltage offsets are adjusted and stored in the signal generator’s firmware.
Required Test Equipment
• HP/Agilent 53132A Option 050 Universal Counter
Procedure
Figure 5-11 FM Path Offset Calibration Setup
1. Connect the equipment as shown above.
2. Preset all of the equipment.
3. Follow the instructions as they appear on the controller’s display.
- Agilent Technologies 1
- ESG Family Signal Generators 1
- Contents 3
- 1Equipment Required 7
- Required Equipment 8
- Low Noise Amplifiers for 10
- 2Operation Verification 11
- Verification Procedures 12
- 2. Check for Error Messages 13
- 4. Power Level Accuracy Check 14
- Configure the Signal Generator 15
- Configure the Power Meter 15
- 5. FM Accuracy Check 17
- 6. AM Accuracy Check 18
- Measure the Deviations 19
- Test Tables 20
- Calibration Guide 2-11 21
- Calibration Guide 22
- Calibration Guide 2-13 23
- Calibration Guide 2-15 25
- Calibration Guide 2-17 27
- Calibration Guide 2-19 29
- 2-20 Calibration Guide 30
- 3Service Software 31
- Calibration Guide 3-3 33
- 3-4 Calibration Guide 34
- Next button 34
- Uninstalling the Software 35
- Software Configuration 36
- The User Configuration 37
- Identifying the DUT 37
- Adding Test Equipment 38
- Calibration Guide 3-9 39
- Removing Test Equipment 40
- Editing Test Equipment 41
- Adding Device Drivers 42
- Calibration Guide 3-13 43
- Removing Device Drivers 44
- Adding Test Drivers 44
- Calibration Guide 3-15 45
- 3-16 Calibration Guide 46
- Removing Test Drivers 47
- Adding Datapacks 47
- 3-18 Calibration Guide 48
- Removing Datapacks 49
- Starting the Software 50
- Equipment 52
- Calibration Guide 3-23 53
- 3-24 Calibration Guide 54
- Calibration Guide 3-25 55
- 3-26 Calibration Guide 56
- Exiting the Software 57
- 3-28 Calibration Guide 58
- 4Performance Tests 59
- 4-2 Calibration Guide 60
- Support Software 61
- 4-4 Calibration Guide 62
- 4-6 Calibration Guide 64
- Figure 4-4 The Save As Window 64
- 4-8 Calibration Guide 66
- Equipment Setups 68
- Calibration Guide 4-11 69
- 4. FM Frequency Response 71
- 5. AM Frequency Response 72
- Calibration Guide 4-19 77
- 9. Harmonic, Subharmonic, and 78
- Nonharmonic Spurious Signals 78
- 10. Power Level Accuracy 79
- 11. Timebase Aging Rate 82
- 4-26 Calibration Guide 84
- (Option UN8 only) 87
- (Option UNA only) 93
- Measuring Phase Noise 95
- Using an HP/Agilent 8644B 96
- Calibration Guide 4-39 97
- 4-40 Calibration Guide 98
- Measuring Residual FM 99
- (Option UND only) 100
- Calibration Guide 4-43 101
- Recommended Equipment 102
- Equipment Setup 102
- Performance Test Records 104
- Calibration Guide 4-47 105
- Frequency (GHz) 106
- 5Adjustments 107
- Adjustment Relationships 108
- • FM Path Offset Adjustment 109
- Required Test Equipment 110
- Procedure 110
- Analog Bus ADC Calibration 111
- Description 112
- Internal Source Calibration 113
- Timebase DAC Calibration 118
- FM Path Offset Calibration 120
- Modulation Source 124
- (ESG-A and ESG-D only) 126
- (ESG-AP and ESG-DP only) 129
- DCFM Calibration 130
- Prelevel Calibration, Digital 135
- Gain Adjust Calibration 137
- Low Noise Floor Gain Adjust 138
- VBLO Mixer Bias Calibration 140
- Power Level Accuracy 141
- ≥ 10 MHz and ≤ 2 GHz) Setup 143
- > 2 GHz) Setup 143
- Level Meter Calibration 144
- AM Gain Calibration 146
- 5-44 Calibration Guide 150
- 6Maintenance and Service 151
- Cleaning the Cabinet 152
- Cleaning the Display 152
- Sales and Service Offices 153
- 6-4 Calibration Guide 154
- 7Safety and Regulatory 155
- Safety Notes 156
- Instrument Markings 157
- General Safety Considerations 158
- Statement of Compliance 159
- Electrostatic Discharge 160
- Warranty 161
- Assistance 162
- Certification 163
- 7-10 Calibration Guide 164
- Index I-1 165
- I-2 Index 166
- Index I-3 167
- I-4 Index 168
- Index I-5 169
- I-6 Index 170
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