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Performance Tests and
Adjustments Manual
HP 8566B Spectrum Analyzer
F!a HEWLETT
PACKARD
HP Part No. 08566-90168
Printed in USA September 1993
Notice.
The information contained in this document is subject to change
without notice.
Hewlett-Packard makes no warranty of any kind with regard to this
material, including but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. Hewlett-Packard
shall not be liable for errors contained herein or for incidental
or consequential damages in connection with the furnishing,
performance, or use of this material.
@ Copyright Hewlett-Packard Company 1993
All Rights Reserved. Reproduction, adaptation, or translation without
prior written permission is prohibited, except as allowed under the
copyright laws.
1400 Fountaingrove Parkway, Santa Rosa CA, 95403-1799, USA
Certification Hewlett-Packard Company certifies that this product met its
published specifications at the time of shipment from the factory.
Hewlett-Packard further certifies that its calibration measurements
are traceable to the United States National Institute of Standards and
Technology, to the extent allowed by the Institute's calibration facility,
and to the calibration facilities of other International Standards
Organization members.
Warranty This Hewlett-Packard instrument product is warranted against defects
in material and workmanship for a period of one year from date of
shipment. During the warranty period, Hewlett-Packard Company
will, at its option, either repair or replace products which prove to be
defective.
For warranty service or repair, this product must be returned to a
service facility designated by Hewlett-Packard. Buyer shall prepay
shipping charges to Hewlett-Packard and Hewlett-Packard shall pay
shipping charges to return the product to Buyer. However, Buyer shall
pay all shipping charges, duties, and taxes for products returned to
Hewlett-Packard from another country.
Hewlett-Packard warrants that its software and firmware designated
by Hewlett-Packard for use with an instrument will execute
its programming instructions when properly installed on that
instrument. Hewlett-Packard does not warrant that the operation
of the instrument, or software, or firmware will be uninterrupted or
error-free.
L IMITATION OF W ARRANTY
The foregoing warranty shall not apply to defects resulting from
improper or inadequate maintenance by Buyer, Buyer-supplied
software or interfacing, unauthorized modification or misuse,
operation outside of the environmental specifications for the
product, or improper site preparation or maintenance.
NO OTHER WARRANTY IS EXPRESSED OR IMPLIED.
HEWLETT-PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.
E XCLUSIVE R EMEDIES
THE REMEDIES PROVIDED HEREIN ARE BUYER'S SOLE AND
EXCLUSIVE REMEDIES. HEWLETT-PACKARD SHALL NOT BE
LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT,
TORT, OR ANY OTHER LEGAL THEORY.
...
III
Assistance Product maintenance agreements and other customer omistance
agreemxmts are available for Hewlett-Rzckard products.
Fbr any assistance, contact your nearest Hewlett-Fbckard Sales and
Service Ome.
Safety Notes The following safety notes are used throughout this manual.
Familiarize yourself with each of the notes and its meaning before
operating this instrument.
Caution Caution denotes a hazard. It calls attention to a procedure that, if
not correctly performed or adhered to, could result in damage to or
destruction of the instrument. Do not proceed beyond a caution sign
until the indicated conditions are fully understood and met.
Warning Warning denotes a hazard. It calls attention to a procedure
which, if not correctly performed or adhered to, could result in
injury or loss of life. Do not proceed beyond a warning note until
the indicated conditions are fully understood and met.
Instruction The instruction manual symbol. The product is marked with this
Manual symbol when it is necessary for the user to refer to the instructions in
the manual.
iv
General Safety
Considerations
Warning Before this instrument is switched on, make sure it has been
properly grounded through the protective conductor of the ac
power cable to a socket outlet provided with protective earth
contact.
Any interruption of the protective (grounding) conductor, inside
or outside the instrument, or disconnection of the protective
earth terminal can result in personal injury.
Warning There are many points in the instrument which can, if contacted,
cause personal injury. Be extremely careful.
Any adjustments or service procedures that require operation
of the instrument with protective covers removed should be
performed only by trained service personnel.
Caution Before this instrument is switched on, make sure its primary power
circuitry has been adapted to the voltage of the ac power source.
Failure to set the ac power input to the correct voltage could cause
damage to the instrument when the ac power cable is plugged in.
V
How to Use This
Manual
This manual uses the Front-Panel Ke r) This represents a key physically located on the
following instrument.
conventions: Screen Text This indicates text displayed on the instrument's
screen.
HP 8566B Included with the HP Model 8566B spectrum analyzer are manuals:
The Installation and Verification Manual, the Operating and
Documentation Programming Manual, and the Performance Tests and Adjustments
Description Manual.
HP 8566B Installation HP part number 08566-90169
and Verification Contents: General information, installation, specifications,
Manual characteristics, and operation verification.
HP 8566B Operating HP part number 08566-90040
and Programming Contents: Manual and remote operation, including complete syntax
Manual and command description. Accopanying this manual is the seperate,
pocket-sized Quick Reference Guide, HP part number 5955-8970.
HP 8566B HP part number 08566-90168
Performance Tests and Contents: Electrical performance tests and adjustment procedures.
Adjustments Manual
HP 8566B RF Section HP part number 08566-90210
Troubleshooting and Contents: RF section service information.
Repair Manual
HP 8566B IF-Display HP part number 08566-90085
Section Contents: IF-Display section service information.
Troubleshooting and
Repair Manual
vi
Contents
1. General Information
Introduction . . . . . . . . . . . . . . . . . . . . . l-l
Instruments Covered by this Manual . . . . . . . . . l-2
Operation Verification . . . . . . . . . . . . . . . . l-2
Option 462 Instruments . . . . . . . . . . . . . . . l-2
Option 857 Instruments . . . . . . . . . . . . . . . l-2
2. Performance Tests
Introduction . . . . . . . . . . . . . . . . . . . . . 2-l
Verification of Specifications . . . . . . . . . . . . . 2-l
Calibration Cycle . . . . . . . . . . . . . . . . . . 2-2
Equipment Required . . . . . . . . . . . . . . . . 2-3
Performance Test Record . . . . . . . . . . . . . . 2-3
1. Center Frequency Readout Accuracy Test . . . . 2-4
2. Frequency Span Accuracy Test . . . . . . . . . 2-8
3. Resolution Bandwidth Accuracy Test . . . . . . 2-12
4. Resolution Bandwidth Selectivity Test . . . . . . 2-14
5. Resolution Bandwidth Switching Uncertainty Test 2-17
6. Log Scale Switching Uncertainty Test . . . . . . 2-19
7. IF Gain Uncertainty Test . . . . . . . . . . . . 2-21
8. Amplitude Fidelity Test . . . . . . . . . . . . 2-27
9. Calibrator Amplitude Accuracy Test . . . . . . . 2-31
10. Frequency Response Test . . . . . . . . . . . 2-32
11. Sweep Time Accuracy Test . . . . . . . . . . 2-46
12. Noise Sidebands Test . . . . . . . . . . . . . 2-49
13. Line-Related Sidebands Test . . . . . . . . . . 2-53
14. Average Noise Level Test . . . . . . . . . . . 2-58
15. Residual Responses Test . . . . . . . . . . . . 2-61
16. Harmonic and Intermodulation Distortion Test . 2-65
17. Image, Multiple, and Out of Band Responses Test 2-73
18. Gain Compression Test . . . . . . . . . . . . 2-77
19. 1st LO Output Amplitude Test . . . . . . . . . 2-81
20. Sweep + Tune Out Accuracy Test . . . . . . . 2-82
21. Fast Sweep Time Accuracy Test (~20 ms) . . . . 2-84
22. Frequency Reference Error Test . . . . . . . . 2-87
`Iable 2-24. Performance Test Record . . . . . . . . . . 2-89
Test 1. Center Frequency Readout Accuracy . . . . . 2-90
Test 2. Frequency Span Accuracy Test . . . . . . . . 2-91
Test 3. Resolution Bandwidth Accuracy Test . . . . . 2-92
Test 4. Resolution Bandwidth Selectivity . . . . . . . 2-93
Test 5. Resolution Bandwidth Switching Uncertainty . 2-94
Test 6. Log Scale Switching Uncertainty Test . . . . . 2-95
Test 7. IF Gain Uncertainty . . . . . . . . . . . . . 2-96
Test 8. Amplitude Fidelity . . . . . . . . . . . . . 2-99
Test 9. Calibrator Amplitude Accuracy . . . . . . . . 2-100
Test 10. Frequency Response Test . . . . . . . . . . 2-101
Contents-l
Test 11. Sweep Time Accuracy . . . . . . . . . . . 2-103
Test 12. Noise Sidebands Test . . . . . . . . . . . . 2-104
Test 13. Line-Related Sidebands . . . . . . . . . . . 2-105
Test 14. Average Noise Level . . . . . . . . . . . . 2-106
Test 15. Residual Responses . . . . . . . . . . . . . 2-107
Test 16. Harmonic And Intermodulation Distortion . . 2-108
Test 17. Image, Multiple, and Out-of-Band Responses . 2-109
Test 18. Gain Compression . . . . . . . . . . . . . 2-l 11
Test 19. 1st LO Output Amplitude . . . . . . . . . . 2-112
Test 20. Sweep + Tune Out Accuracy . . . . . . . . 2-113
Test 21. Fast Sweep Time Accuracy (< 20 ms) . . . . 2-l 14
Test 22. Frequency Reference Error Test . . . . . . . 2-115
3. Adjustments
Introduction . . . . . . . . . . . . . . . . . . . . . 3-l
Safety Considerations . . . . . . . . . . . . . . . . . 3-2
Equipment Required . . . . . . . . . . . . . . . . . 3-2
Adjustment Tools . . . . . . . . . . . . . . . . . . . 3-2
Factory-Selected Components . . . . . . . . . . . . . 3-3
Related Adjustments . . . . . . . . . . . . . . . . . 3-3
Location of Test Points and Adjustments . . . . . . . . 3-3
1. Low-Voltage Power Supply Adjustments . . . . . . 3-25
2. High-Voltage Adjustment (SN 3001A and Below) . . 3-31
2. High-Voltage Adjustment (SN 3004A and Above) . . 3-41
3. Preliminary Display Adjustments (SN 3001A and
Below) . . . . . . . . . . . . . . . . . . . . . 3-48
3. Preliminary Display Adjustments (SN 3004A and
Above) . . . . . . . . . . . . . . . . . . . . . 3-56
4. Final Display Adjustments (SN 3001A and Below) . 3-63
4. Final Display Adjustments (SN 3004A and Above) . 3-65
5. Log Amplifier Adjustments . . . . . . . . . . . . 3-69
6. Video Processor Adjustments . . . . . . . . . . . 3-73
7. 3 MHz Bandwidth Filter Adjustments . . . . . . . 3-76
8. 21.4 MHz Bandwidth Filter Adjustments . . . . . 3-82
9. 3 dB Bandwidth Adjustments . . . . . . . . . . 3-89
10. Step Gain and 18.4 MHz Local Oscillator
Adjustments . . . . . . . . . . . . . . . . . . 3-94
11. Down/Up Converter Adjustments . . . . . . . . 3-100
12. 10 MHz Standard Adjustment (SN 2637A and
Below) . . . . . . . . . . . . . . . . . . . . . 3-104
12. 10 MHz Standard Adjustment (SN 2728A and
Above) . . . . . . . . . . . . . . . . . . . . . 3-108
13. Sweep, DAC, and Main Coil Driver Adjustments . . 3-113
14. 100 MHz VCXO Adjustments . . . . . . . . . . . 3-126
15. MN Loop Adjustments . . . . . . . . . . . . . 3-132
16. YT.0 Loop Adjustments . . . . . . . . . . . . . 3-135
17. 20/30 Loop Phase Lock Adjustments . . . . . . . 3-146
18. RF Module Phase Lock Adjustments . . . . . . . 3-160
19. CAL Output Adjustment . . . . . . . . . . . . . 3-166
20. Last Converter Adjustments . . . . . . . . . . . 3-169
2 1. Frequency Response Adjustments . . . . . . . . 3-174
22. Analog-To-Digital Converter Adjustments . . . . . 3-206
23. Track and Hold Adjustments . . . . . . . . . . . . 3-209
24. Digital Storage Display Adjustments . . . . . . . 3-212
Low-Noise DC Supply . . . . . . . . . . . . . . . . 3-218
Contents-2
Crystal Filter Bypass Network Configuration . . . . . 3-219
4. Option 462
Introduction . . . . . . . . . . . . . . . . . . . . . 4-l
3. 6 dB Resolution Bandwidth Accuracy Test . . . . . 4-2
3. Impulse and Resolution Bandwidth Accuracy Test . 4-4
4. 6 dB Resolution Bandwidth Selectivity Test . . . . 4-10
4. Impulse and Resolution Bandwidth Selectivity Test . 4-13
5. Impulse and Resolution Bandwidth Switching
Uncertainty Test . . . . . . . . . . . . . . . . 4-16
Test 3. 6 dB Resolution Bandwidth Accuracy Test (p/o
lhble 2-24, Performance Test Record) . . . . . . . 4-18
Test 3. Impulse and Resolution Bandwidth Accuracy
Test (p/o `Ihble 2-24, Performance Test Record) . . 4-19
Test 4. 6 dB Resolution Bandwidth Selectivity (p/o
Table 2-24, Performance Test Record) . . . . . . . 4-21
Test 4. Impulse and Resolution Bandwidth Selectivity
(p/o Table 2-24, Performance Test Record) . . . . . 4-22
Test 5. Impulse and Resolution Bandwidth Switching
Uncertainty (p/o `Ihble 2-24, Performace Test
Record) . . . . . . . . . . . . . . . . . . . . . 4-23
9. 6 dB Resolution Bandwidth Adjustments . . . . . 4-24
9. Impulse Bandwidth Adjustments . . . . . . . . . 4-27
5. Option 857
Introduction . . . . . . . . . . . . . . . . . . . . . 5-l
8. Option 857 Amplitude Fidelity Performance Test . . 5-2
Performance Test Record . . . . . . . . . . . . . . . 5-6
Test 8. Option 857 Amplitude Fidelity . . . . . . . . 5-7
6. Major Assembly and Component Locations
IF-Display Section Figure Index . . . . . . . . . . . . 6-l
RF Section Figure Index . . . . . . . . . . . . . . . 6-2
Contents3
Figures
l-l. Service Accessories, HP Part Number 08566-60001 . . l-9
2-l. Center Frequency Test Setup . . . . . . . . . . . . 2-4
2-2. Center Frequency Accuracy Measurement . . . . . . 2-6
2-3. Narrow Span Test Setup . . . . . . . . . . . . . . . 2-8
2-4. Wide Span Test Setup . . . . . . . . . . . . . . . . 2-10
2-5. Resolution Bandwidth Measurement . . . . . . . . . 2-13
2-6. 60 dB Bandwidth Measurement . . . . . . . . . . . 2-15
2-7. Bandwidth Switching Uncertainty Measurement . . . 2-18
2-8. Log Scale Switching Uncertainty Measurement . . . . 2-20
2-9. IF Gain Uncertainty Test Setup . . . . . . . . . . . 2-21
2-10. IF Gain Uncertainty Measurement . . . . . . . . . . 2-23
2-l 1. Amplitude Fidelity Test Setup . . . . . . . . . . . . 2-27
2-12. Amplitude Fidelity Measurement . . . . . . . . . . 2-29
2-13. Calibrator Amplitude Accuracy Test Setup . . . . . . 2-31
2-14. Frequency Response Test Setup (100 Hz to 100 kHz) . 2-33
2-15. Frequency Response Measurement (1 kHz to 100 kHz) 2-35
2-16. Frequency Response Test Setup (100 kHz to 60 MHz) . 2-36
2-17. Frequency Response Measurement (100 kHz to 4 MHz) 2-37
2-18. Frequency Response Measurement (4 MHz to 60 MHz) 2-38
2-19. Frequency Response Test Setup (60 MHz to 2.5 GHz, 2
to22GHz) . . . . . . . . . . . . . . . . . . . 2-39
2-20. Frequency Response Measurement (60 MHz to 2.5 GHz) 2-41
2-21. Sweep Time Accuracy Test Setup . . . . . . . . . . 2-46
2-22. Noise Sidebands Test Setup . . . . . . . . . . . . . 2-50
2-23. Noise Sidebands Measurement . . . . . . . . . . . . 2-51
2-24. Line Related Sidebands Test Setup . . . . . . . . . . 2-53
2-25. Line-Related Sidebands Measurement . . . . . . . . 2-55
2-26. Average Noise Level Measurement . . . . . . . . . . 2-59
2-27. Residual Responses Measurement . . . . . . . . . . 2-62
2-28. Harmonic Distortion Test Setup . . . . . . . . . . . 2-66
2-29. Intermodulation Distortion Test Setup . . . . . . . . 2-69
2-30. Third Order Intermodulation Products . . . . . . . . 2-71
2-31. Image, Multiple, and Out-of-Band Responses Test Setup 2-73
2-32. Gain Compression Test Setup . . . . . . . . . . . . 2-77
2-33. 1st LO Output Amplitude Test Setup . . . . . . . . . 2-81
2-34. Sweep + Tune Out Accuracy Test Setup . . . . . . . 2-82
2-35. Fast Sweep Time Accuracy (~20 ms) Test Setup . . . . 2-84
2-36. Fast Sweep Time Measurement (~20 ms) . . . . . . . 2-85
2-37. Frequency Reference Test Setup . . . . . . . . . . . 2-88
3-l. Low-Voltage Power Supply Adjustments Setup . . . . 3-25
3-2. IF-Display Section Adjustments (SN 3001A and Below) 3-26
3-3. IF-Display Section Adjustments (SN 3004A and Above) 3-27
3-4. Location of RF Section Low-Voltage Adjustments . . . 3-29
3-5. High Voltage Adjustment Setup . . . . . . . . . . . 3-32
3-6. Location of High Voltage Adjustments . . . . . . . . 3-33
3-7. Location of Label and Test Point . . . . . . . . . . . 3-34
Contents-4
3-8. Location of AlA Components . . . . . . . . . . . 3-36
3-9. CRT Cut-Off Voltage 3-37
3-10. Waveform at AlA3TP5' : : : : : : : : : : : : 1 : : 3-38
3-l 1. Discharging the CRT Post-Accelerator Cable . . . . . 3-40
3-12. High Voltage Adjustment Setup . . . . . . . . . . . 3-42
3-13. Location of High Voltage Adjustments . . . . . . . . 3-43
3-14. Location of AlA Label and Test Point . . . . . . . . 3-44
3-15. Discharging the CRT Post-Accelerator Cable . . . . . 3-47
3-16. Preliminary Display Adjustments Setup . . . . . . . 3-49
3-17. Location of AlA2, AlA4, AlA5, and A3A2 . . . . . 3-50
3-18. AlA2, AlA4, and AlA Adjustment Locations . . . . 3-50
3-19. X+ and X- Waveforms . . . . . . . . . . . . . . . 3-51
3-20. Composite X Deflection Waveform . . . . . . . . . . 3-52
3-21. Rise and Fall Times and Overshoot Adjustment
Waveform . . . . . . . . . . . . . . . . . . . 3-53
3-22. 5OV,, Signal . . . . . . . . . . . . . . . . . . . . 3-54
3-23. Preliminary Display Adjustments Setup . . . . . . . 3-57
3-24. Location of AlA and A3A2 . . . . . . . . . . . . 3-58
3-25. AlA Adjustment Locations . . . . . . . . . . . . . 3-58
3-26. X+ and X- Waveforms . . . . . . . . . . . . . . . 3-59
3-27. Composite X Deflection Waveform . . . . . . . . . . 3-60
3-28. Rise and Fall Times and Overshoot Adjustment
Waveform . . . . . . . . . . . . . . . . . . . 3-60
3-29. 5OV,, Signal . . . . . . . . . . . . . . . . . . . . 3-62
3-30. Location of Final Display Adjustments on AlA2, AlA4,
and AlA5. . . . . . . . . . . . . . . . . . . . 3-64
3-31. Final Display Adjustments Setup . . . . . . . . . . . 3-65
3-32. Location of Final Display Adjustments on AlA . . . 3-66
3-33. Log Amplifier Adjustments Setup . . . . . . . . . . 3-69
3-34. Location of Log Amplifier Adjustments . . . . . . . . 3-70
3-35. Video Processor Adjustments Setup . . . . . . . . . 3-73
3-36. Location of Video Processor Adjustments . . . . . . . 3-74
3-37. 3 MHz Bandwidth Filter Adjustments Setup . . . . . 3-76
3-38. Location of Center, Symmetry, and 10 Hz Amplitude
Adjustments . . . . . . . . . . . . . . . . . . 3-78
3-39. Location of 3 MHz Peak Adjustments . . . . . . . . . 3-80
3-40. 21.4 MHz Bandwidth Filter Adjustments Setup . . . . 3-82
3-41. Location of A4A4 21.4 MHz LC Filter Adjustments . . 3-83
3-42. Location of A4A4 21.4 MHz Crystal Filter Adjustments 3-84
3-43. Location of A4A8 21.4 MHz LC Filter and Attenuation
Adjustments . . . . . . . . . . . . . . . . . . 3-85
3-44. Location of A4A8 21.4 MHz Crystal Filter Adjustments 3-86
3-45. Location of 3 dB Bandwidth Adjustments . . . . . . 3-90
3-46. Step Gain and 18.4 MHz Local Oscillator Adjustments
Setup . . . . . . . . . . . . . . . . . . . . . . 3-94
3-47. Location of IF Gain Adjustment . . . . . . . . . . . 3-96
3-48. Location of 10 dB Gain Step Adjustments . . . . . . 3-97
3-49. Location of .l dB Gain Step, 18.4 MHz LO, and + 1OV
Adjustments . . . . . . . . . . . . . . . . . . 3-98
3-50. Down/Up Converter Adjustments Setup . . . . . . . 3-100
3-51. Location of Down/Up Converter Adjustments . . . . . 3-101
3-52. 10 MHz Frequency Standard Adjustments Setup . . . 3-105
3-53. Location of 10 MHz Standard Adjustments . . . . . . 3-107
3-54. 10 MHz Frequency Standard Adjustments Setup . . . 3-109
3-55. Location of 10 MHz Standard Adjustments . . . . . . 3-112
Contents-5
3-56. Sweep and DAC Adjustments Setup . . . . . . . . . 3-114
3-57. OV to + 1OV Sweep Ramp at A16TP3 . . . . . . . . . 3-115
3-58. Location of Sweep and DAC Adjustments . . . . . . . 3-116
3-59. Properly Adjusted DC Levels Between Sweep Ramps . 3-117
3-60. Improperly Adjusted DC Levels Between Sweep Ramps 3-117
3-61. YTO Main Coil Driver Adjustments Setup . . . . . . . 3-120
3-62. Location of YTO Main Coil Driver Adjustments . . . . 3-121
3-63. YTO Main Coil Driver Adjustments Setup (Alternate
Procedure) . . . . . . . . . . . . . . . . . . . 3- 122
3-64. 100 MHz VCXO Adjustment Setup . . . . . . . . . . 3-126
3-65. Location of 100 MHz VCXO Adjustments . . . . . . . 3-127
3-66. Typical Tuning Range of A7A2 100 MHz VCXO . . . . 3-128
3-67. M/N Loop Adjustment Setup . . . . . . . . . . . . . 3-132
3-68. Location of PLL Adjustments . . . . . . . . . . . . 3-133
3-69. YTO Loop Adjustment Setup . . . . . . . . . . . . 3-136
3-70. Location of Assemblies, Cables, and Test Points . . . . 3-136
3-71. All YTO Loop Service Position . . . . . . . . . . . 3-137
3-72. Typical YTO Loop Swept Frequency Response at AllAl 3-139
3-73. AllA Adjustment Locations . . . . . . . . . . . . 3-140
3-74. Sampler Waveform at AllA5TPl . . . . . . . . . . 3-142
3-75. 30 MHz YTO Loop Sampler Response at AllJ5 IF OUT 3-143
3-76. Tuning the IF OUT Fundamental . . . . . . . . . . 3-144
3-77. 20/30 PLL Adjustment Setup . . . . . . . . . . . . 3-147
3-78. Location of PLLl Adjustments . . . . . . . . . . . . 3-149
3-79. Location of PLL2 Adjustments . . . . . . . . . . . . 3-154
3-80. Location of PLL3 Adjustments . . . . . . . . . . . . 3-156
3-81. RF Module Phase Lock Adjustments Setup . . . . . . 3-161
3-82. Location of RF Module Phase Lock Adjustments . . . 3-161
3-83. A Sampler Balance Adjustment Waveform . . . . . . 3-164
3-84. Cal Output Adjustment Setup . . . . . . . . . . . . 3-166
3-85. Location of CAL OUTPUT Adjustment . . . . . . . . 3-167
3-86. CAL OUTPUT Harmonics . . . . . . . . . . . . . . 3-168
3-87. Last Converter Adjustments Setup . . . . . . . . . . 3-170
3-88. Location of Last Converter Adjustments . . . . . . . 3-171
3-89. Frequency Response Preliminary Adjustments Setup . 3-176
3-90. Location of Frequency Response Adjustments . . . . 3-177
3-91. Frequency Response Adjustments Setup (10 MHz to 2.5
GHz) . . . . . . . . . . . . . . . . . . . . . . 3-179
3-92. Typical Coarse Frequency Response (10 MHz - 2.5 GHz) 3-181
3-93. Typical Frequency Response (10 MHz - 2.5 GHz) . . . 3-182
3-94. Frequency Response Adjustments Setup (2.0 GHz to
22.0 GHz) . . . . . . . . . . . . . . . . . . . . 3-185
3-95. Typical Coarse Frequency Response (2 GHz - 5.8 GHz) 3-187
3-96. Typical Frequency Response (2.0 GHz - 5.8 GHz) . . . 3-188
3-97. Typical Coarse Frequency Response (5.8 GHz - 12.5
GHz) . . . . . . . . . . . . . . . . . . . . . . 3-191
3-98. Typical Frequency Response (5.8 GHz - 12.5 GHz) . . 3-193
3-99. Frequency Response Adjustments Setup (18.6 to 325
GHz) . . . . . . . . . . . . . . . . . . . . . . 3-204
3-100. Analog-To-Digital Converter Adjustments Setup . . . . 3-206
3-101. Location of Analog-To-Digital Converter Adjustments . 3-208
3-102. Track and Hold Adjustments Setup : . . . . . . . . 3-209
3-103. Location of Track and Hold Adjustments . . . . . . . 3-210
3-104. Digital Storage Display Adjustments Setup . . . . . . 3-212
3-105. Location of Digital Storage Display Adjustments . . . 3-213
Contents-6
3-106. Sample and Hold Balance Adjustment Waveforms . . . 3-215
3-107. Waveform Before Adjustment . . . . . . . . . . . . 3-215
3-108. Low-Noise DC Supply . . . . . . . . . . . . . . . . 3-218
3-109. Crystal Filter Bypass Network Configurations . . . . . 3-219
4-l. Resolution Bandwidth Measurement . . . . . . . . . 4-3
4-2. Impulse Bandwidth Test Setup . . . . . . . . . . . . 4-4
4-3. 6 dB Resolution Bandwidth Measurement . . . . . . 4-8
4-4. 60 dB Bandwidth Measurement . . . . . . . . . . . 4-11
4-5. 60 dB Bandwidth Measurement . . . . . . . . . . . 4-14
4-6. Bandwidth Switching Uncertainty Measurement . . . 4-17
4-7. Location of Bandwidth Adjustments . . . . . . . . . 4-25
4-8. Location of Bandwidth Adjustments . . . . . . . . . 4-28
5-l. Option 857 Amplitude Fidelity Test Setup . . . . . . 5-2
6-l. RF Section, Top View . . . . . . . . . . . . . . . . 6-3
6-2. RF Section, Front View . . . . . . . . . . . . . . . 6-4
6-3. RF Section, Bottom View . . . . . . . . . . . . . . 6-5
6-4. IF Section, Top View (SN 3001A and Below) . . . . . 6-6
6-5. IF Section, `Ibp View (SN 3004A and Above) . . . . . 6-7
6-6. IF Section, Front View . . . . . . . . . . . . . . . 6-8
6-7. IF Section, Bottom View . . . . . . . . . . . . . . 6-9
Contents-7
!Ihbles
2-l. Performance Test Cross-Reference . . . . . . . . . . 2-2
2-2. Center Frequency Readout Accuracy . . . . . . . . . 2-7
2-3. Narrow Span Accuracy . . . . . . . . . . . . . . . 2-9
2-4. Wide Span Accuracy . . . . . . . . . . . . . . . . 2-11
2-5. Bandwidth Accuracy . . . . . . . . . . . . . . . . 2-13
2-6. Resolution Bandwidth Selectivity . . . . . . . . . . 2-16
2-7. Bandwidth Switching Uncertainty . . . . . . . . . . 2-18
2-8. Log Scale Switching Uncertainty . . . . . . . . . . . 2-20
2-9. IF Gain Uncertainty, 10 dB Steps . . . . . . . . . . 2-23
2-10. IF Gain Uncertainty, 2 dB Steps . . . . . . . . . . . 2-24
2-l 1. IF Gain Uncertainty, 0.1 dB Steps . . . . . . . . . . 2-25
2-12. Log Scale Fidelity . . . . . . . . . . . . . . . . . 2-29
2-13. Linear Amplitude Fidelity . . . . . . . . . . . . . . 2-30
2-14. 100 Hz to 2.5 GHz Frequency Band . . . . . . . . . 2-37
2-15. Frequency Response (Flatness) . . . . . . . . . . . 2-45
2-16. Sweep Time Accuracy, Sweep Times 220 ms . . . . . 2-48
2-17. Sweep Time Accuracy . . . . . . . . . . . . . . . 2-48
2-18. Average Noise Level . . . . . . . . . . . . . . . . 2-60
2-19. TO1 Measurement Settings . . . . . . . . . . . . . 2-72
2-20. Image and Out-of-Band Response . . . . . . . . . . 2-75
2-2 1. Multiple Responses . . . . . . . . . . . . . . . . . 2-76
2-22. Sweep + Tune Out Accuracy . . . . . . . . . . . . 2-83
2-23. Fast Sweep Time Accuracy (~20 ms) . . . . . . . . . 2-86
2-24. Frequency Response (Flatness) . . . . . . . . . . . 2-102
3-l. Adjustment Cross Reference . . . . . . . . . . . . . 3-4
3-2. Adjustable Components . . . . . . . . . . . . . . . 3-5
3-3. Factory-Selected Components . . . . . . . . . . . . 3-13
3-4. Standard Value Replacement Capacitors . . . . . . . 3-20
3-5. Standard Value Replacement 0.125 Resistors . . . . . 3-21
3-6. Standard Value Replacement 0.5 Resistors . . . . . . 3-23
3-5. Initial Adjustment Positions . . . . . . . . . . . . . 3-63
3-6. Initial Adjustment Positions . . . . . . . . . . . . . 3-66
3-7. Standard Values for A7A2L4 . . . . . . . . . . . . 3-128
3-8. Limits for 100 MHz Harmonics . . . . . . . . . . . . 3-130
3-9. Selection Chart for Attenuator Resistors . . . . . . . 3-130
3-10. Resistor Values . . . . . . . . . . . . . . . . . . . 3-131
3-11. Power Level of Fundamental Signal . . . . . . . . . 3-144
3-12. Standard Values for AlOA4C49 3-157
3-13. Standard Values for AlOA4R29 and'AliA4R33 : : : : 3-158
3-14. Frequency Bands . . . . . . . . . . . . . . . . . . 3-174
3-15. Preselector Delay Compensation DAC Values . . . . . 3-202
3-16. A6A12 YTX Driver Assembly Factory-Select Capacitor
Values . . . . . . . . . . . . . . . . . . . . . 3-203
3-17. Parts for Low-Noise DC Supply . . . . . . . . . . . 3-218
3-18. Crystal Filter Bypass Network Configuration for A4A4
and A4A8 (21.4 MHz) . . . . . . . . . . . . . . 3-219
Contents-8
3-19. Crystal Filter Bypass Network Configuration for A4A7
(3MHz) . . . . . . . . . . . . . . . . . . . . . 3-219
4-l. 6 dB Resolution Bandwidth Accuracy . . . . . . . . 4-3
4-2. Impulse Bandwidth Accuracy . . . . . . . . . . . . 4-9
4-3. 6 dB Resolution Bandwidth Accuracy . . . . . . . . 4-9
4-4. 6 dB Resolution Bandwidth Selectivity . . . . . . . . 4-12
4-5. Impulse and Resolution Bandwidth Selectivity . . . . 4-15
4-6. Bandwidth Switching Uncertainty . . . . . . . . . . 4-17
5-l. Log Amplitude Fidelity (10 Hz RBW; Option 857) . . . 5-4
5-2. Log Amplitude Fidelity (10 kHz RBW; Option 857) . . 5-5
5-3. Linear Amplitude Fidelity . . . . . . . . . . . . . . 5-5
Contents-9
1
General Information
Introduction This HP 8566B Tests and Adjustments Manual contains two main
sections: Performance Tests and Adjustments Procedures. This
chapter lists the required test equipment for both sections. The
performance tests provided should be performed for the following
reasons:
w If the test equipment for the Operation Verification Program is not
available.
w If the instrument does not pass all of the Operation Verification
tests.
n For complete verification of specifications not covered by the
Operation Verification program.
The adjustment procedures should be performed for the following
reasons:
w If the results of a performance test are not within the specifications.
w After the replacement of a part or component that affects electrical
performance.
Warning The adjustment procedures require access to the interior of the
instrument and therefore should only be performed by qualified
service personnel. There are voltages at many points in the
instrument which can, if contacted, cause personal injury. Be
extremely careful. Adjustments should be performed only by
trained service personnel.
Power is still applied to this instrument with the LINE switch in
STANDBY. There is no OFF position on the LINE switch. Before
removing or installing any assembly or printed circuit board,
remove the power cord from the rear of both instruments and
wait for the MAINS indicators (red LEDs) to go completely out.
Capacitors inside the instrument may still be charged even if the
instrument has been disconnected from its source of power. Use a
non-metallic tuning tool whenever possible.
General Information 1-l
Instruments Covered This manual contains procedures for testing and adjusting HP
by this Manual 8566B spectrum analyzers, including those with Option 400 (400 Hz
operation), Option 462 (impulse bandwidths and 6 dB bandwidths),
and Option 857 installed. The procedures in this manual can also
be used to adjust HP 8566A spectrum analyzers that have been
converted into HP 8566B spectrum analyzers through the installation
of an HP 8566AB Retrofit Kit (formerly HP 8566A+OlK Retrofit Kit).
Operation Verification A high confidence level in the instrument's operation can be achieved
by running only the Operation Verification Program, since it tests
most of the instrument's specifications. It is recommended that the
Operation Verification Program be used for incoming inspection and
after repairs, since it requires much less time and test equipment.
A description of the program can be found in the Installation and
Verification manual.
Option 462 Option 462 instruments require that the performance tests and
Instruments adjustment procedures listed below be performed instead of their
standard versions included in chapters two and three. Information on
Option 462 versions is located in Chapter 4, Option 462.
6 dB Bandwidths:
Test 3, 6 dB Resolution Bandwidth Accuracy Test
Test 4, 6 dB Resolution Selectivity Test
Adjustment 9, 6 dB Bandwidth Adjustment Procedure
Impulse Bandwidths:
Test 3, Impulse Resolution Bandwidth Accuracy Test
Test 4, Impulse and Resolution Selectivity Test
Test 5, Impulse and Resolution Bandwidth
Switching Uncertainty Test
Adjustment 9, Impulse Bandwidth Adjustment Procedure
Option 867 Option 857 instruments are used in EMC receiver applications.
Instruments Information on Option 857 is located in Chapter 5, Option 857.
1-2 General Information
`lhble l-l. Recommended Test Equipment (1 of 6)
Instrumenl Critical Specifications for Recommended Perf. Adj.
Equipment Substitution Model Test
SIGNAL
SOURCES
Synthesized Frequency: 10 MHz to 22 GHz HP 8340A/B X X
Sweeper Output Power: + 10 dBm maximum (leveled)
Aging Rate: ~1 x 10mg/day
Spurious Signals: 135 dBc (~7 GHz)
125 dBc (<20 GHz)
Amplitude Modulation: dc to 100 kHz
Leveling: Internal, External Power Meter
Synthesized Frequency: 2 - 18 GHz HP 8672A X X
Signal Stability: ~5 x lo-lo
Generator
Frequency Frequency: 200 Hz to 80 MHz HP 3335A X X
Synthesizer Stability: fl x IO-"/day
Amplitude Range: + 13 to -86 dBm with 0.01 dB
resolution
Attenuator Accuracy: < f0.07 dB (+ 13 to -47 dBm)
Pulse Pulse Width: 10 nsec to 250 nsec HP 8116A X
Generator Rise and Fall Times: ~6 ns
Output Level: +2.5V
Function Output: Sine Wave and Triangle Wave, BVp-p HP 3312A X X
Generator Range: 100 Hz to 500 kHz (Sweep Function Available)
(2 required)
Frequency Output: 1, 2, 5, or 10 MHz HP 5061B X X
Standard Accuracy: lO MHz HP 5345A X
Counter Xesolution: 2 x 10Wg gate time
Zxt. Time Base: 1, 2, 5, or 10 MHz
UniversaI +equency: dc to 100 MHz HP 5316B X
Counter Time Interval A + B: 100 ns to 200s HP 5334AB
sensitivity: 50 mV rms
Eange: 30 mV to 5V p-p
DSCILLOSCOPE
Digitizing 1 Channel HP 54501A X
3scilloscope "requency: 100 MHz
sensitivity: .005V/Division
1scilloscope .O: 1 Divider, compatible with oscilloscope HP 10432A X
`robe 2 reauired 1 -
1-4 General Information
`Ihble l-l. Recommended Test Equipment (3 of 6)
Instrument Critical Specifications for Recommended Perf, Adj
Equipment Substitution Model Test
METERS
Digital Resolution: fO.l mV HP 3456A X X
Voltmeter Range: 0 Vdc to 100 Vdc or
Input Impedance 100 V Range: 10 M62 HP 3455A
HP-IB Compatible
DC High Voltage 1000: 1 Divider HP 34111A X
Probe Impedance: lOM62
Power Meter Range: -20 dBm to + 10 dBm HP436A X X
Accuracy: f0.02dB
Power Sensor Frequency: .Ol to 18 GHz HP 8481A X
Compatible with HP 436A Power Meter
Power Sensor Frequency: 50 MHz to 26.5 GHz HP8485A X
Compatible with HP 436A Power Meter
Digital Tektronix J-16 X
Photometer Option 02
Photometer for Tektronix J-16 Tektronix X
Probe range: 1 to 100 NITS (cd/m") 56503
acceptance angle: 8"
spectral response: CIE Photopic curve
Interconnect for Tektronix J-16 Tektronix X
Zable 012-0414-02
Photometer Por Tektronix J-16 Tektronix X
Light Occluder 016-0305-00
YITENUATORS
10 dB Step 3teps: 10 dB from 0 to 120 dB HP 355D-H89 X
4ttenuator ?requency: 20 MHz to 1500 MHz
2alibrated to uncertainty error of ~t(O.02 dB
to.01 dB/lO dB step) at 20 MHz from
1 dB to 120 dB
General information l-5
`Ihble l-l. Recommended Test Equipment (4 of 6)
Instrument Critical Specifications for Recommended Perf, Adj,
Equipment Substitution Model Test
1 dB Step Steps: 1 dB from 0 to 12 dB HP 355C-H25 X
Attenuator Frequency: 20 MHz to 1500 MHz
Calibrated to uncertainty error of f(0.02 dB
+O.Ol dB/lO dB step) at 20 MHz from
0 dB to 12 dB
3 dB Frequency: 200 Hz to 18 GHz HP 8493B, X
Attenuator SMA Connectors Option 003
30 dB Frequency: 200 Hz to 18 GHz HP 8493B, X
Attenuator SMA Connectors (2 required) Option 020
I'ERMINATIONS
krmination Impedance: 5OQ; BNC HP 11593A X
rermination Impedance: 500; SMA (m) HP 1810-0118 X
Fermination I'ype N Male Connector HP 909A, X
Frequency: dc to 18 GHz Option 012
[mpedance: 5061
FIIXERS
Jaw-Pass Filter kt-off Frequency: 250 MHz K&L 5L380- X
Rejection at 460 MHz: >60 dB 250-B/B
Jaw-Pass Filter kt-off Frequency: 8 GHz K&L 6L250- X
iejection at 14 GHz: >80 dB 8000-NP/N
Jaw-Pass Filter ht-off Frequency: 1200 MHz HP 360B X
Xejection at 1500 MHz: >50 dB
vlISCELLANEOUS
IEVICES
`recision I-20 volts, O-2 amperes HP 6114A X
`ower Supply
l-6 General information
`able l-l. Recommended Test Equipment (5 of 6)
Instrument Critical Specifications for Recommended Perf, Adj.
Equipment Substitution Model Test
AC Line-Power Frequency: 400 Hz California Instr- X
Source Voltage :lOO, 120, 220, or 240 V,, uments Model
(Rx- Option 400) Power: >6OOVA 153T Opt. 400
Power Frequency: 1 MHz to 22 GHz HP 11667B X
Splitter Tracking: ~0.2 dB
Planar-doped 10 MHz to 33 GHz HP 8473D/ X
Barrier Diode HP 8474C
Detector
Reactive Power Range: 2 to 22 GHz Omni-Spectra X
Divider Isolation: 220 dB 2090-6202-00
SPECIAL
DEVICES
Display Required for preliminary display adjustment! IP 85662-60088 X
Adjustment
PC Board*
Low-Noise (Optional) Refer to Figure 3-108. X
DC Supply
Crystal Filter Refer to Figure 3-109. (4 required) X
Bypass Network
CABLES
Low-Loss Microwave APC 3.5 (m) HP 8120-4921 X
Cable
Cable BNC, 122 cm (48 in.) (3 required) 10503A X
Cable SMA (m) to SMA (m) 5061-1086 X
Test Cable* BNC (m) to SMB Snap-On (f) IP 85680-60093 X
General Information 1-7
`Ihble l-l. Recommended Test Equipment (6 of 6)
Instrument Critical Specifications for Recommended Perf. Adj,
Equipment Substitution Model Test
ADAPTERS
Adapter Type N (f) to BNC (m) 1250-0077 X
Adapter SMB snap on (m) (m) 1250-0672 X
Adapter SMB (m) to SMA (f) 1250-0674 X
Adapter SMB (m) bulkhead 1250-0691 X
Adapter Type N (f) to N (f) 1250-1477 X
Adapter Type N (m) to N (m) 1250-0778 X
Adapter Type N (m) to BNC (f) (2 required, 1250-0780 X
Adapter BNC Tee (m)(f)(f) (2 required) 1250-0781 X X
Adapter SMA (f) to SMA (f) 1250-l 158 X
Adapter SMA (m) to SMA (m) 1250-1159 X
Adapter BNC (f) to SMA (m) 1250-1200 X
Adapter BNC (f) to SMB (f) 1250-1236 X
Adapter Type N (m) to SMA (f) 1250-1250 X
Adapter BNC to aligator clip 1250-1292 X
Adapter Type N (f) to BNC (m) 1250-1477 X
Adapter APC-3.5 (m) to Type N (m) 1250-1743 X
Adapter Type N (m) to APC-3.5 (f) 1250-1744 X
Adapter APC-3.5 (f) TO N (f) (2 required) 1250-1745 X
Adapter APC-3.5 (f) to APC-3.5 (f) 1250-1749 X
Adapter APC-3.5 (m) to Type N (f) 1250-1750 X
Adapter BNC (f) to dual bannana plug 1251-2277 X
Adapter Type N (f) to SMA (f) HP 86290-60005 X
BOARD
EXTENDERS
See Figure l-l.
?C Board PC Board extracting tool HP 03950-4001 X
Xxtractor
t Part of Service Accessories
l-8 General Information
6X2 18 x 2 18 x 2
kern G Description I HP Fart Number I
1 1 Extender Board: 20 contacts, 2 rows of 10 85680-60028
2 2 Extender Board: 12 contacts, 2 rows of 6 08505-60109
3 2 Cable: 4-foot long; BNC to SMB snap-on 85680-60093
4 1 Adapter: SMB snap-on male to SMB snap-on male 1250-0669
5 1 PC Board: Display Adjustment Test 85662-60088
6 3 Extender Board: 30 contacts; 2 rows of 15 08505-60041
7 1 Extender Board: 44 contacts; 2 rows of 22 08505-60107
8 1 Extender Board: 50 contacts; 2 rows of 25 85680-60034
9 2 Extender Board: 36 contacts; 2 rows of 18 08505-60042
Figure l-l. Service Accessories, HP Part Number 08566-60001
General Information l-9
2
Performance Tksts
Introduction The procedures in this section test the instrument's electrical
performance using the Specifications in the Installation and
Verification Manual as the performance standards. None of the
tests require access to the interior of the instrument. The manual
Performance Tests provided in this section should be performed only
if semi-automatic test equipment (for Operation Verification) is not
available or the Performance Test is not in the Operation Verification
Program. (Refer to the Installation and Verification Manual for
information on Operation Verification.)
Verifkation of When a complete verification of specifications is required, proceed as
Specifications follows:
1. Run the Operation Verification Program.
2. The Operation Verification Program verifies compliance with
specifications of all tests it performs. The tests not performed by
the Operation Verification Program must be done manually and are
as follows:
n Sweep Time Accuracy (including Fast Sweep Time Accuracy)
n Noise Sidebands
n Harmonic and Intermodulation Distortion
n Image, Multiple, and Out-of-Band Responses
n Frequency Reference Error
n Center Frequency Readout Accuracy
If the results of a performance test are marginally within
specification, go to the Adjustments section of this manual and
perform the related adjustments procedures. When an adjustment is
directly related to a performance test, the adjustment procedure is
referenced under RELATED ADJUSTMENT in the performance test.
Performance Tests 2-l
`Ihble 2-1. Performance Test Cross-Reference
Function or Characteristic Tested Test Performance Test
No.
Center Frequency Readout 1 Center Frequency Readout Accuracy Test
Frequency Spans 2 Frequency Span Accuracy Test
3-dB Bandwidths* 3 Resolution Bandwidth Accuracy Test
Bandwidth Shape* 4 Resolution Bandwidth Selectivity Test
Bandwidth Amplitudes* 5 Resolution Bandwidth Switching Uncertainty Test
Log Scales 6 Log Scale Switching Uncertainty Test
IF Gains 7 IF Gain Uncertainty Test
Log and Linear Amplifier Fidelityt 8 Scale Fidelity Test
CAL OUTPUT Level 9 Calibrator Amplitude Accuracy Test
Frequency Response 10 Frequency Response Test
Sweep Times 11 Sweep Time Accuracy Test
Noise Sidebands 12 Noise Sidebands Test
Line-Related Sidebands 13 Line-Related Sidebands Test
Noise Floor 14 Average Noise Level Test
Residual Responses 15 Residual Responses Test
Harmonic and Intermodulation Distortion 16 Harmonic and Intermodulation Distortion Test
Image, Multiple, and Out-of-Band Responses 17 Image, Multiple, and Out-of-Band Responses Test
Gain Compression 18 Gain Compression Test
1ST LO OUTPUT Amplitude 19 1ST LO OUTPUT Amplitude Test
SWEEP+ TUNE OUT 20 SWEEP + TUNE OUT Amplitude Test
Fast Sweep Times 21 Fast Sweep Time Accuracy Test (~20 ms)
Frequency Reference 22 Frequency Reference Error Test
`For Option 462 instruments, refer to Chapter 4.
tFor Option 857 instruments, refer to Chapter 5.
Calibration Cycle This instrument requires periodic verification of performance. The
instrument should have a complete verification of specifications at
least every six months.
2-2 Performance Tests
Equipment Required Equipment required for the manual performance tests and
adjustments is listed in `Ikble l-l, Recommended Test Equipment. Any
equipment that satisfies the critical specifications given in the list may
be substituted for the recommended model.
Performance Test The Operation Verification Program provides a detailed test record
Record when a printer is used with the controller. If manual performance
tests are done, the results of the performance tests may be tabulated
on the HP 8566B Performance Test Record at the end of this chapter.
The HP 8566B Performance Test Record lists all of the tested
specifications and the acceptable ranges for the measurement values
obtained during the tests.
Note Allow l/2 hour warm up time for the HP 8566B before beginning the
Performance Tests.
Performance Tests 2-3
1. Center
Frequency Readout
Accuracy `l&t
Related Adjustments 10 MHz Standard Adjustment
Sweep, DAC, and Main Coil Driver Adjustments
Specifications For spans n X 5 MHz, f (2% of frequency span + n X 100 kHz +
frequency reference error X center frequency).
n* Center Frequency
1 100 Hz to 5.8 GHz
2 5.8 GHz to 12.5 GHz
3 12.5 GHz to 18.6 GHz
4 >18.6 GHz
* n is the harmonic mixing number, depending on center
frequency.
FAEOUENCY
SPECTRUM ANALYZER STANDARD
Figure 2-l. Center Frequency Test Setup
24 Performance Tests
1. Center Frequency Readout Accuracy Test
Description A synthesized signal source that is phase-locked to a known frequency
standard is used to input a signal to the analyzer. The frequency
readout of the analyzer is compared to the actual input frequency
for several different frequency settings over the analyzer's range.
The signal source is phase-locked to a standard known to be as
accurate as the analyzer's internal frequency reference to minimize
the "frequency reference error X center frequency" term of the
specifications.
Equipment Synthesized Sweeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 8340A
Frequency Standard . . . . . a 10 MHz standard with accuracy within
f 1 part in lOlo such as HP 5061A
Adapter, Type N (m) to SMA (f) , . . . . . . . . . . . . . . . . . . . . . 1250-1250
Adapter, SMA (f) to SMA (f) . . . . . . . . . . . . . . . . . . . . . . .1250-1158
Cable Assembly, SMA Male Connectors . . . . . . . . . . . . . . . . . .5061-1086
Procedure 1. Connect CAL OUTPUT to RF INPUT.
2. Press c$???KJ IRECALL) @.
3. Adjust FREQ ZERO for a maximum amplitude trace.
4. Press (2-j.
5. Set the synthesized sweeper for a 2.000000 GHz signal at a level of
approximately 0 dBm.
6. Connect equipment as shown in Figure 2-l.
7. Set analyzer CCENTER FREQUENCY) and (FREQUENCY SPAN) and
synthesized sweeper frequency according to Table 2-2. At each
setting, press CPEAK SEARCH], c-1 to center the signal.
Adjust CREFERENCE LEVEL) as necessary to place signal peak at a
convenient level.
8. Record the CENTER FREQUENCY readout in the table for each
setting. The limits for this frequency are given in the table. Refer
to Figure 2-2.
Performance Tests 2-5
1. Center Frequency Readout Accuracy Test
Figure 2-2. Center Frequency Accuracy Measurement
Note The spectrum analyzer CENTER FREQUENCY readout may fall
outside of the specified limits if the internal frequency reference
of the analyzer has not been calibrated within the past year. To
eliminate the "frequency reference error X center frequency" error,
the analyzer's 10 MHz Frequency Reference Output (on the rear
panel) may be substituted for the frequency standard.
2-6 Performance Tests
1. Center Frequency Readout Accuracy Test
`lhble 2-2. Center Frequency Readout Accuracy
T
I
synthesized ( FREQUENCY SPAN ] I [CENTER FREQUENCY ] Center Frequency
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