Page 1 Maintenance Manual Series MG369xB Synthesized Signal Generators Anritsu Company P/N: 10370-10367 490 Jarvis Drive Revision: H Morgan Hill, CA 95037-2809 Published: November 2015 Copyright 2018 Anritsu Company...
Page 2 NOTICE Anritsu Company has prepared this manual for use by Anritsu Company personnel and customers as a guide for the proper installation, operation and maintenance of Anritsu Company equipment and computer programs. The drawings, specifications, and information contained herein are the property of Anritsu Company, and any unauthorized use or disclosure of these drawings, specifications, and information is prohibited;...
Page 3 Some or all of the following five symbols may or may not be used on all Anritsu equipment. In addition, there may be other labels attached to products that are not shown in the diagrams in this manual.
Page 4 For Safety Warning Always refer to the operation manual when working near locations at which the alert mark, shown on the left, is attached. If the operation, etc., is performed without heeding the advice in the operation manual, there is a risk of personal injury.
Page 5: Table Of Contents
Options ..............1-2 Contacting Anritsu .
Page 6 Table of Contents (Continued) Frequency Synthesis ............2-6 Phase Lock Loops .
Page 7 Table of Contents (Continued) Spurious Signals Test............3-8 Harmonic Test Initial Setup Procedure .
Page 8 Table of Contents (Continued) 3-12 Pulse Modulation Tests............3-55 Test Setup .
Page 9 Table of Contents (Continued) Chapter 5—Troubleshooting Introduction ..............5-1 Test Equipment List .
Page 10 Table of Contents (Continued) 6-10 Power Supply Assembly ........... . . 6-17 Preliminary.
Page 11: Chapter 1-General Information
General Purpose Interface Bus (GPIB). The technical data sheet in Appendix B of the printed version of this manual contains a list of all models and specifications. This data sheet (PN: 11410-00344) is also available online.Updates to this manual and the technical data sheet, if any, may be downloaded from the Anritsu Internet site at: http://www.anritsu.com.
Page 12: Related Manuals
MG369xB was designed to conform to the requirements of SCPI 1993.0. The set of SCPI commands implemented by the MG369xB GPIB interface provides a comprehensive set of programming functions covering all the major functions of the MG369xB signal generator. The Anritsu part number for the model MG369xB SCPI Programming Manual is 10370-10368.
Page 13: Level Of Maintenance
General Information Level of Maintenance Level of Maintenance Maintenance of the MG369xB consists of: • Troubleshooting the instrument to a replaceable subassembly or RF component • Repair by replacing the failed subassembly or RF component. • Calibration • Preventive maintenance Troubleshooting The MG369xB firmware includes internal diagnostics that self-test most of the internal assemblies.
Page 14: Preventive Maintenance
Preventive Maintenance General Information 1-11 Preventive Maintenance The MG369xB must always receive adequate ventilation. A blocked fan filter can cause the instrument to overheat and shut down. Check and clean the rear panel fan honeycomb filter periodically, especially in dusty environments.
Page 15: 1-12 Startup Configurations
General Information Startup Configurations 1-12 Startup Configurations The MG369xB comes from the factory with a jumper across pins 2 and 3 of the A2 microprocessor PCB connector JP1 (Figure 1-2). In this configuration, connecting the instrument to line power automatically places it in operate mode (front panel OPERATE LED on).
Page 16: 1-13 Test Equipment List
One E5052B Signal Source Analyzer Agilent One E5053A Down Converter Agilent Two K120MM-20CM 2 Semi ridged cables K120MM0-20CM (will need to be bent on site to fit) Anritsu One Mouse, Optical, PS2/USB for E5052B One Keyboard USB for E5052B Modulation analyzer...
Page 17 Adapters for power sensor N(m) to V(f) Common source C, P calibration Alternate to achieve N(m) to V(f): Anritsu model 34NK50 + 34VKF50 Anritsu model 34NKF50 + 34VK50 Special AUX I/O cable Provides interface between the Anritsu PN: 806-97 assembly...
Page 18 56100A Scalar Network Analyzer Attenuator for instrument Frequency range: DC to 40 GHz Anritsu part number SC7879 K set of C, P model numbers MG3691B attenuators (41KC-3, 41KC-6, Attenuation: 3, 6, 10, and 20 dB...
Page 19 K(m) flex cable Semi-rigid cables Anritsu K120mm-60CM custom semi-rigid cable V(m) to V(m) flex cables or V(m) to V(m) flex cables Anritsu APN 3670V50-2 V(m) to V(m) C, P semi-rigid cables flex cable Semi-rigid cables Anritsu V120mm-60CM Custom Semi-rigid cable...
Page 20 1-10 PN: 10370-10367 Rev. H MG369xB MM...
Page 21: Chapter 2-Functional Description
Chapter 2 — Functional Description Introduction This chapter provides brief functional descriptions of the major subsystems that are contained in each model of the MG369xB. In addition, the operation of the frequency synthesis, automatic level control (ALC), and RF deck subsystems is described so that the instrument operator may better understand the overall operation of the MG369xB.
Page 22: Frequency Synthesis
Major Subsystems Functional Description Frequency Synthesis The frequency synthesis subsystem consists of the A3 reference/fine loop PCB, the A4 coarse loop PCB, the A7 YIG lock PCB, and the A9 YIG assembly. It provides the reference frequencies and phase lock circuits for precise control of the YIG-tuned oscillator frequencies, as follows: •...
Page 23: Inputs/Outputs
Functional Description Major Subsystems Inputs/Outputs The A21 rear panel PCB and the A2 microprocessor PCB contain the interface circuits for the majority of the rear panel input and output connectors, including the AUX I/O connector. The A5 Auxiliary PCB (or the optional A5 Analog Instruction PCB) provides a 0V to +10V ramp signal to the rear panel HORIZ OUT connector, a V/GHz signal to the rear panel AUX I/O connector, and a SLOPE signal to the A6 ALC PCB for slope-vs-frequency correction of the RF output power.
Page 24 Major Subsystems Functional Description Figure 2-1. Block Diagram of a Typical MG369xB Synthesized Signal Generator (Sheet 1 of 2) PN: 10370-10367 Rev. H MG369xB MM...
Page 25 Functional Description Major Subsystems Figure 2-1. Block Diagram of a Typical MG369xB Synthesized Signal Generator (Sheet 2 of 2) MG369xB MM PN: 10370-10367 Rev. H...
Page 26: Frequency Synthesis
Frequency Synthesis Functional Description Frequency Synthesis The frequency synthesis subsystem provides phase-lock control of the MG369xB output frequency. It consists of four phase-lock loops, the reference loop, the coarse loop, the fine loop, and the YIG loop. The four phase-lock loops, operating together, produce an accurately synthesized, low-noise RF output signal.
Page 27 Functional Description Frequency Synthesis Figure 2-2. Block Diagram of the Frequency Synthesis Subsystem MG369xB MM PN: 10370-10367 Rev. H...
Page 28 Frequency Synthesis Functional Description Figure 2-3. Block Diagram of the ALC Subsystem PN: 10370-10367 Rev. H MG369xB MM...
Page 29 Functional Description Frequency Synthesis Phase locking the instrument’s output frequency over a broad frequency range is accomplished by programming the coarse-loop oscillator’s output to various frequencies that have harmonics close to the desired operating frequencies. Exact frequency tuning for each desired operating frequency is accomplished by programming the fine-loop oscillator.
Page 30: Rf Outputs 0.01 Mhz To 65 Or 67 Ghz
Frequency Synthesis Functional Description RF Outputs 0.01 MHz to 65 or 67 GHz Refer to the block diagrams of the RF Deck shown in Figure 2-4 on page 2-17 through Figure 2-15 on page 2-28 for the following descriptions. The MG369xB uses one YIG-tuned oscillator capable of generating RF signals in the frequency range of 2.0 to 20 GHz (the MG3691B YIG-tuned oscillator generates RF signals in the frequency range of 2.0 to 10.0 GHz).
Page 31: Frequency Modulation
Functional Description Frequency Synthesis Table 2-2. Digital Down Converter Frequency Bands Band Frequency Range (in MHz) 10 to 12.5 12.5 to 17.5 17.5 to 22.5 22.5 to 31.25 31.25 to 43.75 43.75 to 62.5 62.5 to 87.5 87.5 to 125 125 to 175 175 to 250 250 to 350...
Page 32: Step Sweep Mode
ALC/AM/Pulse Modulation Functional Description Narrow-band analog frequency sweeps (≤ 100 MHz wide) of the YIG-tuned oscillator RF output are accomplished by summing appropriate analog sweep ramp signals, generated by the A5 Analog Instruction PCB, into the YIG-tuned oscillator’s FM tuning coil control path. The YIG-tuned oscillator’s RF output is then swept about a center frequency.
Page 33: Alc Slope
Functional Description ALC/AM/Pulse Modulation ALC Slope During analog sweeps, a slope-vs-frequency signal, from the A5 Analog Instruction PCB, is summed with the level reference and detector inputs into the ALC loop. The Slope DAC, under the control of the CPU, adjusts this ALC slope signal to compensate for an increasing or decreasing output power-vs-frequency characteristic caused by the level detectors and (optional) step attenuator.
Page 34: Rf Deck Assemblies
RF Deck Assemblies Functional Description RF Deck Assemblies The primary purpose of the RF deck assembly is to generate CW RF signals and route these signals to the front panel RF OUTPUT connector. It is capable of generating RF signals in the frequency range of 0.01 to 65 or 67 GHz (0.1 Hz to 65 or 67 GHz with Option 22).
Page 35: To 2 Ghz Down Converter (Option 5)
Functional Description RF Deck Assemblies To generate RF signals from 0.01 to 2 GHz, the MG369xB couples the RF signal to the A11 down converter. A coupler in the A10 switched filter path provides this RF signal, which is routed through a 8.5 GHz low-pass filter to connector J3, and then to the down converter.
Page 36: Source Quadrupler Module
RF Deck Assemblies Functional Description The RF signal from the switched filter assembly is input to the SDM at J1. During CW or step frequency operations in the 20 to 40 GHz frequency range, the 10 to 20 GHz RF signal input is routed by PIN switches to the doubler/amplifiers.
Page 37 Functional Description RF Deck Assemblies Figure 2-4. Block Diagram of the RF Deck Assembly for Models MG3691B, MG3692B, MG3693B, and MG3694B with No Options MG369xB MM PN: 10370-10367 Rev. H 2-17...
Page 38 RF Deck Assemblies Functional Description Figure 2-5. Block Diagram of the RF Deck Assembly for Models MG3691B, MG3692B, MG3693B, and MG3694B with Option 4 or 5 2-18 PN: 10370-10367 Rev. H MG369xB MM...
Page 39 Functional Description RF Deck Assemblies Figure 2-6. Block Diagram of the RF Deck Assembly for Models MG3691B, MG3692B, MG3693B, and MG3694B with Options 4 or 5 and 15 MG369xB MM PN: 10370-10367 Rev. H 2-19...
Page 40 RF Deck Assemblies Functional Description Figure 2-7. Block Diagram of the RF Deck Assembly for Models MG3691B, MG3692B, MG3693B, and MG3694B with Options 4 or 5, 15, and 22 2-20 PN: 10370-10367 Rev. H MG369xB MM...
Page 41 Functional Description RF Deck Assemblies Figure 2-8. Block Diagram of the RF Deck Assembly for Model MG3695B with No Options MG369xB MM PN: 10370-10367 Rev. H 2-21...
Page 42 RF Deck Assemblies Functional Description Figure 2-9. Block Diagram of the RF Deck Assembly for Model MG3695B with Option 4 or 5 2-22 PN: 10370-10367 Rev. H MG369xB MM...
Page 43 Functional Description RF Deck Assemblies Figure 2-10. Block Diagram of the RF Deck Assembly for Model MG3695B with Options 4 or 5 and 22 MG369xB MM PN: 10370-10367 Rev. H 2-23...
Page 44 RF Deck Assemblies Functional Description Figure 2-11. Block Diagram of the RF Deck Assembly for Model MG3695B with Options 4 or 5, 15, and 22 2-24 PN: 10370-10367 Rev. H MG369xB MM...
Page 45 Functional Description RF Deck Assemblies Figure 2-12. Block Diagram of the RF Deck Assembly for Model MG3696B with No Options MG369xB MM PN: 10370-10367 Rev. H 2-25...
Page 46 RF Deck Assemblies Functional Description Figure 2-13. Block Diagram of the RF Deck Assembly for Model MG3696B with Option 4 or 5 2-26 PN: 10370-10367 Rev. H MG369xB MM...
Page 47 Functional Description RF Deck Assemblies Figure 2-14. Block Diagram of the RF Deck Assembly for Model MG3696B with Option 4 or 5 and 22 MG369xB MM PN: 10370-10367 Rev. H 2-27...
Page 48 RF Deck Assemblies Functional Description Figure 2-15. Block Diagram of the RF Deck Assembly for Model MG3696B with Option 4 or 5, 15 and 22 2-28 PN: 10370-10367 Rev. H MG369xB MM...
Page 49: Chapter 3-Performance Verification
Chapter 3 — Performance Verification Introduction This chapter contains tests that can be used to verify the performance of the series MG369xB Synthesized Signal Generators to specifications. These tests support all instrument models having any version of firmware and instrument models with the following options: •...
Page 50: Test Equipment List
One E5052B Signal Source Analyzer Agilent One E5053A Down Converter Agilent Two K120MM-20CM 2 Semi ridged cables K120MM0-20CM (will need to be bent on site to fit) Anritsu One Mouse, Optical, PS2/USB for E5052B One Keyboard USB for E5052B Modulation analyzer...
Page 51 Adapters for power sensor N(m) to V(f) Common source C, P calibration Alternate to achieve N(m) to V(f): Anritsu model 34NK50 + 34VKF50 Anritsu model 34NKF50 + 34VK50 Special AUX I/O cable Provides interface between the Anritsu PN: 806-97 assembly...
Page 52 56100A Scalar Network Analyzer Attenuator for instrument Frequency range: DC to 40 GHz Anritsu part number SC7879 K set of C, P model numbers MG3691B attenuators (41KC-3, 41KC-6, Attenuation: 3, 6, 10, and 20 dB...
Page 53: Measurement Uncertainty
Test Equipment List (Sheet 4 of 4) Instrument Critical Specification Manufacturer/Model Usage V(m) to V(m) flex cables or V(m) to V(m) flex cables Anritsu APN 3670V50-2 V(m) to V(m) C, P semi-rigid cables flex cable Semi-rigid cables Anritsu V120mm-60CM Custom Semi-rigid cable...
Page 54: Internal Time Base Aging Rate Test With Absolute Time Model 300
Internal Time Base Aging Rate Test (Optional) Performance Verification Figure 3-1. Equipment Setup for Internal Time Base Aging Rate Tests There are two procedures for Internal Time Base Aging Rate based on the frequency reference Note used. The first procedure is for Absolute Time Corp model 300 use, the second is for Symmetricon (Datum) model 9390-9600 use.
Page 55: Internal Time Base Aging Rate Test With Symmetricom (Datum) Model 9390-9600
Performance Verification Internal Time Base Aging Rate Test (Optional) 7. Wait for 24 hours, then record the frequency error value in the test record. 8. The aging rate is the difference between the two frequency error values. 9. Record the computed result in the test record. To meet the specification, the computed aging rate must be <...
Page 56: Spurious Signals Test
Spurious Signals Test Performance Verification Spurious Signals Test The following tests can be used to verify that the signal generator meets its spurious emissions specifications for RF output signals from 0.01 to 50 GHz. The MG369xB’s CW RF output signal is fed directly into a Spectrum Analyzer. The CW frequency and power level is referenced and a peak search function on the Spectrum Analyzer is utilized to find any spurious signals above the specified limit.
Page 57: Non-Harmonic Initial Setup Procedure
Appendix B, Technical Data Sheet, for the maximum specified power levels. For the electronic version of this manual, refer to the MG369xB Technical Data Sheet, PN: 11410-00344 on the Anritsu Internet site. 3. Set up the Spectrum Analyzer as follows: a.
Page 58: Non-Harmonic Test Procedure
Spurious Signals Test Performance Verification Non-Harmonic Test Procedure Part 1 1. Set up the MG369xB as follows: a. Press Edit F1 to open the current frequency parameter for editing. b. Set F1 to the appropriate test frequency (based on model and options) in the test record, part 1. c.
Page 59 Performance Verification Spurious Signals Test Part 2 1. Set up the MG369xB as follows: a. Press Edit F1 to open the current frequency parameter for editing. b. Set F1 to the appropriate test frequency (based on model and options) in the test record, part 2. c.
Page 60: Single Sideband Phase Noise Test
The section below contains the information to perform the verification using the Agilent E5052B Signal Source Analyzer and E5053A down converter.: Table 3-2. Recommend Equipment List Recommend Part Number Quantity Description Vendor K222B Insertable F-F Anritsu 34NKF50 N Male to K Female Adapter Anritsu K241C Power Splitter Anritsu SC3855 3670K50-2 KM-KM flex cable Anritsu E5052B...
Page 61 Performance Verification Single Sideband Phase Noise Test E5052B Signal Source Analyzer with E5053A Down Converter MG369xB Splitter Figure 3-3. Equipment Setup for Single Sideband Phase Noise Test with E5052B and E5053A 2. E5052B and E5053A setup: a. Press the green Preset button. •...
Page 62: Test Procedure
Single Sideband Phase Noise Test Performance Verification Test Procedure 1. Refer to the test records for Phase Noise. Use the correct table based on the options installed in the MG369xB. 2. Determine the test frequency. 3. Set the MG369xB F1 to the frequency called out in the test records. 4.
Page 63 Performance Verification Single Sideband Phase Noise Test b. Touch Single. At the upper right of the screen the E5052B should have the approximate test frequency displayed, see Figure 3-4. Figure 3-4. E5052B Display 8. Press Trace/View. a. Touch Spurious. b. Touch Power (dBc). Now white spikes may appear on the screen indicating the spurs, Figure 3-4.
Page 64 Single Sideband Phase Noise Test Performance Verification 9. Compare these values to the appropriate frequency in the test records for “Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions”. Record any values which are out of specification. 10. Close the Spurious List window. 11.
Page 65: Aeroflex Pn9000 Phase Noise System
The following test can be used to verify that the MG369xB meets its single sideband phase noise specifications. For this test, an Anritsu MG3694A or B (with Options 3 and 4) signal generator is required to act as a local oscillator (LO).
Page 66: Test Setup
Single Sideband Phase Noise Test Performance Verification Test Setup The PN9000 software must be installed and set up in accordance with the instructions supplied with the phase noise measurement system before continuing with this procedure. Before performing this procedure ensure that all test equipment is calibrated. Refer to the Note manufacturer’s test equipment manual.
Page 67 Performance Verification Single Sideband Phase Noise Test c. Set “Vcontrol = 5 Volts” (in the bottom status bar) by pressing the following on the keyboard: Tab | Enter | 5 | Enter This sets the “VCO-100MHz” frequency tune control to the middle of its range. d.
Page 68 Single Sideband Phase Noise Test Performance Verification b. Offset the frequency of the MG369xB (DUT) as follows: (1) Press Local to return the instrument to local control. (2) Offset the frequency by 1 kHz. c. On the PN9000 system, select the Calib/Exec Cal menu, then select OK. d.
Page 69 Performance Verification Single Sideband Phase Noise Test Table 3-4. PN9000 Phase Noise Test Test Frequency 15 MHz 30 MHz 60 MHz 120 MHz 250 MHz 499 MHz 600 MHz 1.99 GHz Notes: Option 4 Only Option 5 Only Calib/Input Menu: LO Offset 0 Hz 0 Hz...
Page 70: Power Level Accuracy And Flatness Tests
2. Connect the power sensor to the RF Output of the MG369xB (use a fixed attenuator when measuring power levels above +19 dBm). 3. Connect the special AUX I/O interface cable (Anritsu PN: 806-97) to the MG369xB rear panel AUX I/O connector. Connect the cable BNC connectors as follows: a.
Page 71: Power Level Log Conformity
Performance Verification Power Level Accuracy and Flatness Tests Power Level Log Conformity The log conformity test verifies the dynamic range and level accuracy of the Automatic Level Control (ALC) loop. Power level log conformity is tested in both pulse (if equipped) and non-pulse modes by stepping the output power level down in 1 dB increments from its maximum rated power level and measuring the output power level at each step.
Page 72: Power Level Accuracy (≥ -50 Dbm)
Power Level Accuracy and Flatness Tests Performance Verification 7. For models with external pulse modulation: a. Press Modulation to open the Modulation menu. b. Press Pulse, then select external pulse mode by pressing Internal/External, if required. c. Turn the pulse mode on by pressing On/Off. d.
Page 73: Test Setup
Performance Verification Power Level Accuracy and Flatness Tests Power Level Accuracy (< –50 dBm) Power level accuracy for power levels below –50 dBm is tested in two methods. First, by measuring the MG369xB’s RF output directly on a measuring receiver; second, by down converting the MG369xB’s RF output and measuring the down converted IF on a measuring receiver.
Page 74: Test Procedure
Power Level Accuracy and Flatness Tests Performance Verification Connect to DUT RF Output as directed by the procedure. Power Sensor Power Meter IEEE GPIB 10 MHz 10 MHz 10 MHz Reference Out REF IN REF IN Local Oscillator MG369xB (DUT) RF Output Mini-Circuits Filters (2) RF Input...
Page 75 Performance Verification Power Level Accuracy and Flatness Tests 5. If measuring frequencies below 2400 MHz, connect the MG369xB RF Output directly to the measuring receiver’s RF input and skip to step 7. 6. If measuring frequencies above 2400 MHz, connect the MG369xB RF Output to the mixer’s R-input port and set up the LO as follows: a.
Page 76: Power Level Flatness
2. Connect the power sensor to the RF Output of the MG369xB (use a fixed attenuator when measuring power levels above +19 dBm). 3. Connect the special AUX I/O interface cable (Anritsu Part No. 806-97) to the MG369XB rear panel AUX I/O connector. Connect the cable BNC connectors as follows: a.
Page 77: Test Procedure
Performance Verification Power Level Accuracy and Flatness Tests Test Procedure 1. Set up the MG369xB as follows: a. Reset the instrument by pressing SYSTEM, then Reset. The CW menu is displayed. b. Press Manual Sweep to place the instrument in the manual sweep frequency mode and to display the Manual Sweep menu.
Page 78: Maximum Leveled Power
3. Connect the power sensor to the RF Output of the MG369xB (use a fixed attenuator when measuring power levels above +19 dBm). 4. Connect the special AUX I/O interface cable (Anritsu PN: 806-97) to the MG369xB rear panel AUX I/O connector. Connect the cable BNC connectors as follows: a.
Page 79: Test Procedure
Performance Verification Power Level Accuracy and Flatness Tests Test Procedure 1. Set up the MG369xB for a manual sweep as follows: a. Reset the instrument by pressing SYSTEM, then Reset. The CW menu is displayed. b. Press Manual Sweep to place the instrument in the manual sweep frequency mode and to display the Manual Sweep menu.
Page 80: 3-10 Frequency Modulation And Phase Modulation Tests
Frequency Modulation and Phase Modulation Tests Performance Verification 3-10 Frequency Modulation and Phase Modulation Tests This section provides a manual procedure to verify the performance of the frequency and phase modulation of the MG369xB. The test methodology is the RF output of the MG369xB is modulated on and off while monitored on a Spectrum Analyzer display.
Page 81 Performance Verification Frequency Modulation and Phase Modulation Tests a. Reset the instrument by pressing SYSTEM, then Reset. After reset, the CW menu is displayed. b. Press Edit F1 to open the current frequency parameter for editing and set F1 to 5 GHz. c.
Page 82 Frequency Modulation and Phase Modulation Tests Performance Verification 18. Set up the Spectrum Analyzer as follows: a. Press the FREQUENCY key and enter 20 GHz. b. Press the BW key and set the RBW to 3 kHz and the VBW to 30 Hz. c.
Page 83 Performance Verification Frequency Modulation and Phase Modulation Tests 37. Using Table 3-5, “Modulation Index Calculations” on page 3-44 calculate modulation index to six decimal places. Record this value in the Test Record as “mod index”. 38. Calculate the following to three decimal places and record the results into the test record as FMerror%. FMerror% = 100ABS[((mod index ×...
Page 84: Φm Accuracy
Frequency Modulation and Phase Modulation Tests Performance Verification 58. Using Table 3-5, “Modulation Index Calculations” on page 3-44 calculate modulation index to six decimal places. Record this value in the Test Record as “mod index”. 59. Calculate the following to three decimal places and record the results into the test record as FMerror%. FMerror% = 100ABS[((mod index ×...
Page 85 Performance Verification Frequency Modulation and Phase Modulation Tests Narrow External ΦM Accuracy at 5 GHz 10. On the MG369xB, press Mode> and select Narrow, then press <Previous. 11. Set up the Spectrum Analyzer as follows: a. Press the BW key and set the RBW to 3 kHz and the VBW to 100 Hz. b.
Page 86 Frequency Modulation and Phase Modulation Tests Performance Verification 30. Calculate the following to three decimal places and record the results into the test record as ΦMerror%. ΦMerror% = 100ABS[((mod index × 99800) – 99800) / 99800] Wide Internal ΦM Accuracy 5 GHz (Only for instruments with Internal Phase Modulation) 31.
Page 87 Performance Verification Frequency Modulation and Phase Modulation Tests c. Press <Previous and set the ΦM deviation to 1.00 rad/V. d. Press On/Off to ensure the wide internal ΦM mode off. 47. Set up the Spectrum Analyzer as follows: a. Press FREQUENCY and set the center frequency to 20 GHz. b.
Page 88: Fm/Φm Flatness And Bandwidth
Frequency Modulation and Phase Modulation Tests Performance Verification FM/ΦM Flatness and Bandwidth The FM/ΦM flatness and bandwidth tests verify that theMG369xB’s modulated RF output meets specification while in the locked FM mode and in the narrow and wide ΦM modes. Function Generator 10 MHz REF OUT FM/ M...
Page 89 Performance Verification Frequency Modulation and Phase Modulation Tests i. Press PEAK SEARCH. 4. Set up the Function Generator as follows: a. Press the key to select the sine wave function. b. Press the Freq key and use the rotary knob to adjust the frequency output to 99.8 kHz. c.
Page 90 Frequency Modulation and Phase Modulation Tests Performance Verification 4. Set up the Function Generator as follows: a. Press the key to select the sine wave function. b. Press the Freq key and use the rotary knob to adjust the frequency output to 98.8 kHz. c.
Page 91 Performance Verification Frequency Modulation and Phase Modulation Tests 4. .Set up the Function Generator as follows: a. a. Press the key to select the sine wave function. b. Press the Freq key and use the rotary knob to adjust the frequency output to 99.8 kHz. c.
Page 92: Modulation Index Calculations
Note (modulation_index_calculations.txt) or an excel file (modulation_index_calculations.xls). These files are also available from the Anritsu Company web site as part of the MG369xB MM PDF file. Table 3-5. Modulation Index Calculations (Sheet 1 of 2)
Page 93 Performance Verification Frequency Modulation and Phase Modulation Tests Table 3-5. Modulation Index Calculations (Sheet 2 of 2) RESULT_10 = RESULT_9-(1-RESULT_9^2/4+RESULT_9^4/64-RESULT_9^6/2304+RESULT_9^8/147456-RESULT_9^10/1474 5600-10^((Vmodon-Vmodoff)/20))/(-RESULT_9/2+RESULT_9^3/16-RESULT_9^5/384+RESULT_9^7/18432-RES ULT_9^9/1474560) RESULT_11 = RESULT_10-(1-RESULT_10^2/4+RESULT_10^4/64-RESULT_10^6/2304+RESULT_10^8/147456-RESULT_10^1 0/14745600-10^((Vmodon-Vmodoff)/20))/(-RESULT_10/2+RESULT_10^3/16-RESULT_10^5/384+RESULT_10^7/ 18432-RESULT_10^9/1474560) RESULT_12 = RESULT_11-(1-RESULT_11^2/4+RESULT_11^4/64-RESULT_11^6/2304+RESULT_11^8/147456-RESULT_11^10 /14745600-10^((Vmodon-Vmodoff)/20))/(-RESULT_11/2+RESULT_11^3/16-RESULT_11^5/384+RESULT_11^7/1 8432-RESULT_11^9/1474560) RESULT_13 = RESULT_12-(1-RESULT_12^2/4+RESULT_12^4/64-RESULT_12^6/2304+RESULT_12^8/147456-RESULT_12^1 0/14745600-10^((Vmodon-Vmodoff)/20))/(-RESULT_12/2+RESULT_12^3/16-RESULT_12^5/384+RESULT_12^7/ 18432-RESULT_12^9/1474560) RESULT_FINAL = RESULT_13-(1-RESULT_13^2/4+RESULT_13^4/64-RESULT_13^6/2304+RESULT_13^8/147456-RESULT_13^1 0/14745600-10^((Vmodon-Vmodoff)/20))/(-RESULT_13/2+RESULT_13^3/16-RESULT_13^5/384+RESULT_13^7/ 18432-RESULT_13^9/1474560) MG369xB MM...
Page 94: Unlocked Narrow Fm Accuracy
Frequency Modulation and Phase Modulation Tests Performance Verification Unlocked Narrow FM Accuracy The unlocked narrow FM accuracy procedure measures the FM accuracy in unlocked narrow FM mode. Function Generator Multimeter 10 MHz REF OUT FM/ M IN 10 MHz REF IN Frequency Counter MG369xB (DUT) Figure 3-13.
Page 95 Performance Verification Frequency Modulation and Phase Modulation Tests d. Set the FM mode to unlocked narrow by pressing Mode> | Unlocked Narrow, then press <Previous to return to the External FM Status menu. e. Set the sensitivity to 10 MHz/V by pressing Edit Sensitivity and enter 10 MHz. f.
Page 96: Amplitude Modulation Tests
Amplitude Modulation Tests Performance Verification 3-11 Amplitude Modulation Tests This procedure verifies the operation of the MG369xB amplitude modulation input sensitivity circuits. The modulated RF output of the MG369xB is down converted and the (modulated) IF is then measured with a modulation analyzer.
Page 97: External Am Accuracy
Performance Verification Amplitude Modulation Tests External AM Accuracy The following procedure lets you measure the absolute peak external AM values for a 50% AM signal at 6 dB below maximum rated output power and calculate the modulation index. 1. Set up the MG369xB as follows: a.
Page 98: Internal Am Accuracy
Amplitude Modulation Tests Performance Verification 10. Repeat the measurement for each of the local oscillator and MG369xB CW frequency pairs listed in the test record. Internal AM Accuracy The following procedure (for instruments with internal AM only) lets you measure the absolute peak internal AM values for a 50% AM signal at 6 dB below maximum rated output power and calculate the modulation index.
Page 99: Am Roll Off
Performance Verification Amplitude Modulation Tests d. Press AM, PK–, then PEAK HOLD to obtain a negative peak AM reading (Pk2). 7. Calculate the modulation index (M) from the above values as follows: ------------------------------------------ × Pk1 Pk2 – 8. Record the calculated result as M in the test record. 9.
Page 100 Amplitude Modulation Tests Performance Verification 4. Set up the local oscillator as follows (the local oscillator is not required on the first frequency measured): a. Reset the instrument by pressing System, then Reset. After reset, the CW menu is displayed. b.
Page 101: Am Flatness
Performance Verification Amplitude Modulation Tests AM Flatness The following procedure lets you measure the AM flatness of the external AM signal at 6 dB below maximum rated output power from 10 Hz to 10 kHz rates. Test Setup Connect the equipment, shown in Figure 3-14, as follows: 1.
Page 102 Amplitude Modulation Tests Performance Verification 9. Disconnect the multimeter. Using a BNC tee, connect the Function Generator output to the AM IN connector of the MG369xB and to the multimeter input. 10. Repeat steps 6 through 9 for each of the following Function Generator frequencies and record the results in the respective column in the test record: = 1 kHz = 2 kHz...
Page 103: 3-12 Pulse Modulation Tests
Performance Verification Pulse Modulation Tests 3-12 Pulse Modulation Tests The pulse modulation tests verify the operation of the pulse modulation circuits in the MG369xB. Rise time, fall time, overshoot, and power accuracy of the pulsed RF output are verified using a high speed digital sampling oscilloscope.
Page 104: Pulse Rise Time, Fall Time And Overshoot
Pulse Modulation Tests Performance Verification g. Set the bandwidth to DC to 2.5 GHz. h. Select rising edge ( ) triggering. i. Select the left module as the source. j. Select Close to close the open window. k. Turn off channel 1 on the oscilloscope by pressing the 1 key above the module (LED off). 7.
Page 105 Performance Verification Pulse Modulation Tests i. For models without internal pulse: (1) Press Modulation | Pulse | Internal/External to select the External Pulse Status menu. (2) Ensure that the polarity is set to High RF On. (3) Press On/Off to turn the external pulse on. For models with internal pulse: (1) Press Modulation | Pulse | Internal/External to select the Internal Pulse Status menu.
Page 106: Pulse Power Accuracy
Pulse Modulation Tests Performance Verification Pulse Power Accuracy The following procedure lets you measure the pulse power accuracy of the MG369xB’s pulse modulated RF Output. The accuracy is tested with a 1 μs and a 0.5 μs pulse width. 1. Disconnect the MG369xB’s RF coaxial cable from the front of the unit. Set up the equipment as described Figure 3-15.
Page 107: Pulse On/Off Ratio
Performance Verification Pulse Modulation Tests 4. Set up the oscilloscope as follows: a. Press the Source button (near the trigger) until Free Run is illuminated. b. Select the Scale button at the lower left corner of the display and set the scale to 20 mV/div. c.
Page 108: Test Setup
Test Setup Set up the equipment shown in Figure 3-16, as follows: 1. Connect the MG369xB’s rear panel 10 MHz REF OUT to the Spectrum Analyzer’s external reference input. 2. Connect the MG369xB RF Output to the Spectrum Analyzer’s RF input. 3.
Page 109: Chapter 4-Adjustment
The calibration procedures herein support operating firmware version 3.36 and above. It is Note recommended that you upgrade your instrument’s operating firmware to the latest available version prior to calibration. Contact an Anritsu Service Center for more information. Test Equipment List Table 4-1 provides a partial list of the test equipment for these calibration procedures.
Page 110 The computer must be dedicated during calibration and verification activities. National Instrument PCI GPIB card for computer National Instrument C, P PCI GPIB card Anritsu RF verification and Anritsu 2300-497 C, P calibration software Spectrum Analyzer Frequency: 100 kHz to 50 GHz Agilent 8565EC...
Page 111 56100A Scalar Network Analyzer Attenuator for instrument Frequency range: DC to 40 GHz Anritsu part number SC7879 K set of C, P model numbers MG3691B attenuators (41KC-3, 41KC-6, Attenuation: 3, 6, 10, and 20 dB...
Page 112: Test Records
Instrument Critical Specification Manufacturer/Model Usage Attenuator for instrument Frequency Range: DC to 65 GHz Anritsu part number SC7880 V set of C, P model numbers MG3695B attenuators (41V-3, 41V-6, 41V-10, Attenuation: 3, 6, 10, and 20 dB through MG3696B 41V-20) calibrated from 100 K to (sizes and counts are determined 67 GHz.
Page 113: Subassembly Replacement
Adjustment Subassembly Replacement Subassembly Replacement Table 4-2 lists the calibrations that should be performed following the replacement of many MG369xB subassemblies or RF components. Table 4-2. Calibration Following Subassembly/RF Component Replacement Perform the Following Subassembly/RF Component Replaced Calibration(s) in Section(s): Front Panel Assembly None A2 Microprocessor PCB...
Page 114: Connector And Key Notation
PC to MG369xB Interconnection for Calibration Interconnection Using an Anritsu serial interface assembly (PN: T1678), connect the PC to the MG369xB as follows: 1. Connect the wide flat cable between the MG369xB rear panel SERIAL I/O connector and the P1 connector on the T1678 serial interface PCB.
Page 115: Pc Setup
Adjustment Initial Setup PC Setup Configure the PC with the Microsoft Windows operating system to interface with the MG369xB as follows: 1. Power on the MG369xB. 2. Power on the PC. 3. Go to Start | Programs | Accessories | Communications | HyperTerminal to start HyperTerminal (for Microsoft Windows XP).
Page 116 Initial Setup Adjustment 6. Click OK. The Communications Port Properties window is displayed. 7. In the Properties window, make the following selections: Bits per second 19200 Data bits Parity None Stop bits Flow control Xon / Xoff 8. After making the selections, click on the OK button. 9.
Page 117: Preliminary Calibration
Adjustment Preliminary Calibration Preliminary Calibration This procedure provides the steps necessary to initially calibrate the coarse loop, fine loop, frequency instruction, internal DVM circuitry and the 10 MHz reference oscillator of the MG369xB. If Option 16 is installed, the 10 MHz reference oscillator is calibrated. Figure 4-2.
Page 118 Preliminary Calibration Adjustment b. Record step completion in the test record. 4. Calibrate the coarse loop pre-tune DAC as follows: a. At the $ prompt, type: calterm 137 and press <ENTER>. The $ prompt will appear on the screen when the calibration is complete. b.
Page 119: Alternate 10 Mhz Reference Oscillator Calibration
Adjustment Preliminary Calibration e. Record step completion in the test record. 9. Calibrate the ramp center DAC as follows: a. At the $ prompt, type: calterm 129 and press <ENTER>. The $ prompt will appear on the screen when the calibration is complete. b.
Page 120: Frequency Synthesis Tests
Frequency Synthesis Tests Adjustment d. On the MG369xB, press the System main menu key. At the System menu display, press Cal Menu to go to the Calibration menu. e. Press Reference Cal to begin calibration. The Calibration Status menu is displayed. f.
Page 121 Adjustment Frequency Synthesis Tests c. Set F1 to the first test frequency indicated in the test record for the model being tested. 2. Record the frequency counter reading in the test record. The frequency counter reading must be within ±100 Hz of the displayed MG369xB frequency to accurately complete this test. The frequency counter reading is typically within ±1 Hz because the instruments use a common time Note base.
Page 122: Fine Loop
Frequency Synthesis Tests Adjustment Fine Loop The following procedure tests the fine loop by stepping the instrument through ten 100 Hz steps and measuring the RF output at each step. When saving calibration data, turning off the instrument before the $ prompt returns to the screen Caution can cause all stored data to be lost.
Page 123: Switched Filter Shaper
Adjustment Switched Filter Shaper Switched Filter Shaper This procedure provides the steps necessary to adjust the switched filter shaper amplifier gain to produce a more constant level amplifier gain with power level changes. Figure 4-6. Equipment for Switched Filter Shaper Calibration Equipment Setup Connect the equipment, shown in Figure...
Page 124: Limiter Dac Adjustment
Switched Filter Shaper Adjustment Limiter DAC Adjustment The following limiter DAC adjustment procedure applies only to MG369xB with Option 15 (high power output). If your instrument does not have this option, check the “Limiter DAC Adjustment” calibration Note values are set to default. To do this enter calterm 145 and press Q at each test (do not change the values) until you exit the calibration.
Page 125: Shaper Dac Adjustment
Adjustment RF Level Calibration f. Press Q on the keyboard to go to the next frequency band. g. Repeat steps c through f until the DAC has been checked and adjusted for all frequency bands. h. Press Q on the keyboard to exit the program. The $ prompt will appear on the screen. i.
Page 126 Adapters for power sensor N(m) to V(f) Common source C, P calibration Alternate to achieve N(m) to V(f): Anritsu model 34NK50 + 34VKF50 Anritsu model 34NKF50 + 34VK50 Special AUX I/O cable Provides interface between the Anritsu PN: 806-97 assembly...
Page 127 MG3690B and the PC 1. P = Performance Verification Tests, C = Calibration, T = Troubleshooting 2. Only needed if option 2X, Anritsu Model T2579 Level Calibration Mixer Fixture, is installed. For more information, contact your Anritsu service center (http://www.anritsu.com/Contact.asp).
Page 128 RF Level Calibration Adjustment Control Input (20mA): Mixer, Mark Microwave +10V Low Band Diplexer PN: MA-0040LJ -10V Mixer (APN 60-114) IF = 8.51 MHz High Band Diplexer (APN 29850) Control Input (20mA): +10V Low Band Diplexer Low Band -10V High Band Diplexer Diplexer (APN 46504) LO Input...
Page 129: Equipment Setup
Adjustment RF Level Calibration Equipment Setup Connect the equipment, shown in Figure 4-9, as follows: Before beginning this calibration procedure, always let the MG369xB warm up for a minimum of one hour. Note Refer to the Local Oscillator’s SM6191 documentation for information on connecting the T2579 control lines.
Page 130: Alc Bandwidth Calibration
ALC Bandwidth Calibration Adjustment 4-11 ALC Bandwidth Calibration This procedure provides the steps necessary to perform ALC Bandwidth calibration. The ALC Bandwidth is adjusted to compensate for gain variations of the modulator. The adjustment is performed for each frequency band. This provides a more consistent bandwidth throughout the frequency range of the instrument. MG369xB Figure 4-10.
Page 131: Alc Slope Calibration (Option 6 Only)
4-6. 2. Using the Auxiliary I/O cable (Anritsu PN: 806-7), connect the MG369xB rear panel AUX I/O connector to the 56100A Network Analyzer AUX I/O connector. 3. Using the GPIB cable, connect the 56100A Network Analyzer DEDICATED GPIB connector to the MG369xB IEEE-488 GPIB connector.
Page 132 ALC Slope Calibration (Option 6 only) Adjustment During band 1 thru 3/4 ALC Slope adjustment, the 56100A Network Analyzer display (Figure 4-12) shows the response from 2 GHz to the top frequency of the model, as adjustment is done band by band. Figure 4-12.
Page 133 Adjustment ALC Slope Calibration (Option 6 only) b. Adjust the ALC Slope so that the power at the start and stop frequencies (of the analog sweep for band 0) match as closely as possible to the normalized straight line in step sweep mode. When completed, press n for the next band.
Page 134: 4-13 Am Calibration
AM Calibration Adjustment 4-13 AM Calibration This procedure provides the steps necessary to perform AM calibration. This consists of calibrating the AM Calibration DAC and the AM Meter circuit. The AM Calibration DAC is calibrated for input sensitivities of 100%/V (linear mode) and 25 dB/V (logarithmic mode) for frequencies ≤ 2 GHz and > 2 GHz (≤...
Page 135: Am Calibration Procedure
Adjustment AM Calibration AM Calibration Procedure The following procedure lets you (1) adjust the AM Calibration DAC to provide the correct amount of AM in both linear (100%/V sensitivity) and log (25 dB/V sensitivity) modes of operation for frequencies of ≤ 2 GHz and >...
Page 136 AM Calibration Adjustment a. At the $ prompt, type: calterm 113 and press <ENTER>. b. Set the Function Generator for a ±0.20 volt output. Use the COMPL button to toggle the output between –0.20 volts and +0.20 volts. c. On the computer keyboard, use 1, 2, or 3 to increment and 8, 9, and 0 to decrement the value of the DAC’s setting to obtain a 10.00 dB difference in the power meter’s reading when the Function Generator’s output is toggled.
Page 137: 4-14 Frequency And Phase Modulation Calibration
Adjustment Frequency and Phase Modulation Calibration 4-14 Frequency and Phase Modulation Calibration This procedure provides the steps necessary to perform FM and ΦM calibration. This consists of calibrating the FM and ΦM Meter circuit and the FM Gain Control DAC. The FM and ΦM Gain Control DAC is calibrated for input sensitivities in both narrow and wide FM and ΦM modes.
Page 138: Fm Calibration Procedure
Frequency and Phase Modulation Calibration Adjustment FM Calibration Procedure The following steps in the procedure lets you calibrate the following and store the results in non-volatile memory on the A2 CPU PCB. Note To ensure an accurate calibration, each step of this procedure must be performed in sequence. 1.
Page 139 Adjustment Frequency and Phase Modulation Calibration Figure 4-15. Typical Spectrum Analyzer Display of a Bessel Null on an FM Waveform Figure 4-15 is for example only. During the calibrations the above picture is not viewed because the Note settings on the spectrum analyzer zoom into the Bessel Null’s peak. 3.
Page 140 Frequency and Phase Modulation Calibration Adjustment l. The frequency should jump from ~15.1 GHz to ~14.9 GHz and it should stay at each frequency for approximately 5 seconds. m. While observing the Spectrum Analyzer display, adjust the value of the DAC’s setting to obtain a 200 MHz peak to peak deviation.
Page 141 Adjustment Frequency and Phase Modulation Calibration 6. Perform the ΦM Wide flatness calibration as follows: a. At the $ prompt on the PC screen, type: calterm 155 and press <ENTER>. b. Set up the Function Generator for a 400 Hz sine wave. Adjust the Function Generator to produce a DMM reading of 0.707 volts RMS (2 volts peak to peak) at the FM input.
Page 142 Frequency and Phase Modulation Calibration Adjustment 4-34 PN: 10370-10367 Revision: H MG369xB MM...
Page 143: Chapter 5-Troubleshooting
Chapter 5 — Troubleshooting Troubleshooting procedures presented in the this chapter may require the removal of the Note instrument’s covers to gain access to the test points on the printed circuit boards and other subassemblies. Hazardous voltages are present inside the MG369xB whenever AC line power is connected. Turn off the instrument and remove the line cord before removing any covers or panels.
Page 144 Error Messages Troubleshooting If the MG369xB fails self-test, error messages are displayed on the front panel data display. These error messages describe the malfunction and, in most cases, provide an indication of what has failed. Table 5-1, on the following page, is a summary listing of the self-test error messages. Included for each is a reference to the troubleshooting table that provides a description of the probable cause and a procedure for identifying the failed component or assembly.
Page 145: Normal Operation Error And Warning/Status Messages
Troubleshooting Error Messages Table 5-1. Self-Test Error Messages (Sheet 2 of 2) Troubleshooting Page Error Message Table Number Error 144, RF was Off when Self-test started. Some tests were not performed. Table 5-30 5-30 Error 145, AM Meter or Associated Circuits Failed Table 5-31 5-30 Error 147, Internal FM Circuits Failed...
Page 146 Error Messages Troubleshooting Table 5-2. Possible Error Messages During Normal Operations (Sheet 2 of 2) Error Message Description Displayed in the modulation status area when one or more of the following error conditions occurs: (1) The external AM modulating signal exceeds the input voltage range. In addition, the message “Reduce AM Input Level”...
Page 147: No Error Message
Troubleshooting No Error Message Table 5-3. Possible Warning/Status Messages during Normal Operation Warning/Status Message Description COLD This warning message indicates that the 100 MHz Crystal oven (or the 10 MHz Crystal oven if Option 16 is installed) has not reached operating temperature. Normally displayed during a cold start of the MG369xB.
Page 148: Troubleshooting Tables
Troubleshooting Tables Troubleshooting Troubleshooting Tables Table 5-4 through Table 5-34, beginning on page 5-11, provide procedures for isolating malfunctions displaying self-test errors to a replaceable subassembly or RF component. In those cases where any of several subassemblies or RF components could have caused the problem, subassembly/RF component replacement is indicated.
Page 149 Troubleshooting Troubleshooting Tables A4 Mounting Screws Power Supply Mounting Screws A1 Motherboard Power Supply Pulse Generator Reference Coarse Loop Loop Analog Instruction Automatic Level Control (ALC) Rear Panel GPIB YIG Lock Function Generator/ Pulse Generator A9 YIG Module A4 Mounting Screws A9 Mounting Screws A14 Fan BIAS...
Page 150 Troubleshooting Tables Troubleshooting Figure 5-3. Motherboard Connector Pinout Diagram (1 of 2) PN: 10370-10367 Rev. H MG369xB MM...
Page 151 Troubleshooting Troubleshooting Tables A12-2 A12-1 Switched Doubler Front Switched Doubler Rear Reference Loop SDM_BIAS SDM_32-40GHZ +5VA SDM_01-20GHZ RL_DATA SDM_25-32GHZ +3.3VA RL_CLK SDM_20-25GHZ +15VA [SDM_ID] RL_STRB -15VA [SDM_ID] RL_MON SDM_20-25GHZ +12VS [H_0VEN_RDY] SDM_25-32GHZ [L_EXT_10MHZ] SDM_01-20GHZ [L_INT_10MHZ] SDM_32-40GHZ SDM_BIAS [RL_LOCK] Down Converter Switched Filter Coarse Loop SF_ALC...
Page 152 Troubleshooting Tables Troubleshooting Analog Instruction Analog Instruction (With Option 6) (Without Option 6) +24V +24V +15V +15V FM_SWP +10VR +10VR FREQ_SWP -10VR -10VR T_DAC_MON -15V -15V INTEG_MON DELTA_F V/GHZ V/GHZ SLOPE HORIZ_OUT HORIZ_OUT RAMP RAMP RAMP MS_MON MS_MON COMPARE COMPARE P102 YIG Lock DEBUG1...
Page 153 6. Replace the standby and main power supplies. • If the instrument powers up, the problem is cleared. • If the instrument fails to power up, contact your local Anritsu service center for assistance. Table 5-5. Malfunctions Not Displaying an Error Message...
Page 154 Troubleshooting 5. Check for normal operation. • If the instrument powers up, the problem is cleared. • If the instrument fails to power up, contact your local Anritsu service center for assistance. Table 5-6. Power Supply Module Regulated Outputs A1P4 Pin #...
Page 155 6. Replace the A2 PCB, perform a manual pre-calibration and run self-test. • If no error message is displayed, the problem is cleared. • If any of the error messages, 100, 101, and 102, are displayed, contact your local Anritsu service center for assistance.
Page 156 3. Replace the A2 PCB. Allow a 30 minute warm up, then run self-test. • If error 108 is not displayed, the problem is cleared. • If error 108 is displayed, contact your local Anritsu service center for assistance. Table 5-9.
Page 157 8. Reconnect the MCX cable W158 to A4J3 and run self-test again. • If error 112 is not displayed, the problem is cleared. • If error 112 is still displayed, contact your local Anritsu service center for assistance. MG369xB MM PN: 10370-10367 Rev.
Page 158 8. Reconnect the MCX cable W157 to A4J2 and run self-test again. • If error 112, 149 or 152 is not displayed, the problem is cleared. • If error 112, 149 or 152 is still displayed, contact your local Anritsu service center for assistance. 5-16 PN: 10370-10367 Rev.
Page 159 9. Run self-test. • If error 113 or 115 are not displayed, the problem is cleared. • If either error 113 or 115 are displayed, contact your local Anritsu service center for assistance. Table 5-16. Error Message 114 A11 Down Converter Error 114 Down Converter LO not Locked (Option 5 only) Description: The local oscillator in the down converter assembly is not phase-locked.
Page 160 3. Perform a preliminary calibration and run self-test again. • If no error message is displayed, the problem is cleared. • If any of the error messages, listed above, is displayed, contact your local Anritsu service center for assistance. 5-18 PN: 10370-10367 Rev.
Page 161 1. Replace the A6 PCB, and run self-test. • If no error message is displayed, the problem is cleared. • If error message 121, 122, 123, 127, or 142 is displayed, contact your local Anritsu service center for assistance. • If error message 143 is displayed, proceed to step 2.
Page 162 Troubleshooting Tables Troubleshooting Table 5-20. Error Messages 124, 125 and 126 A9 YIG-tuned Oscillator Module Error 124 Full Band Unlocked and Unleveled Error 125 8.4-20 GHz Unlocked and Unleveled Error 126 2-8.4 GHz Unlocked and Unleveled Description: These error messages indicate a failure of the YIG-tuned oscillator module. Model MG369xB YIG-tuned Oscillator Failure 1.
Page 163 4-7, then run self-test again. • If no error message is displayed, the problem is cleared. • If any of the error messages, listed above, are displayed, contact your local Anritsu service center for assistance. Table 5-21. YIG Module Assembly Bias Voltages...
Page 164 Troubleshooting Tables Troubleshooting Table 5-22. Error Message 128 Output Power Level Related Problems (0.01 to 20 GHz) Error 128 0.01-2 GHz Unleveled or Down Converter Unleveled (Option 4) Description: Error 128 indicates a failure of the down converter leveling circuitry. The MG369xB may or may not produce an RF output in the 0.01 to 2 GHz frequency range.
Page 165 • If the warning message UNLEVELED is still displayed, replace the A6 PCB. Method 2: Using a microwave detector. 1. Connect a microwave detector (Anritsu part number 75KC50 for K connector units or 75VA50 for V connectors) to the MG369xB RF OUTPUT connector.
Page 166 9. Run self-test again. • If no error message is displayed, the problem is cleared. • If any of the error messages, listed above, are displayed, contact your local Anritsu service center for assistance. 5-24 PN: 10370-10367 Rev. H...
Page 167 Troubleshooting Troubleshooting Tables Table 5-23. Error Message 129 Error 129 Switched Filter or Level Detector Failed Description: Error 129 indicates a failure of either the switched filter or level detector circuitry. The MG369xB may or may not produce an RF output in the 2 to 20 GHz frequency range. Thus, there are two troubleshooting paths for this problem-unleveled with output power and unleveled with no/low output power.
Page 168 Troubleshooting Tables Troubleshooting 5. Set up the 56100A scalar network analyzer as follows: a. Press the SYSTEM MENU key. b. From System menu display, select RESET. c. Press CHANNEL 2 DISPLAY: OFF d. Press CHANNEL 1 DISPLAY: ON e. Press the CHANNEL 1 MENU key. f.
Page 169 Troubleshooting Troubleshooting Tables Table 5-24. Error Messages 130, 131, 132, 133 and 134 Error 130 2-3.3 GHz Switched Filter Error 131 3.3-5.5 GHz Switched Filter Error 132 5.5-8.4 GHz Switched Filter Error 133 8.4-13.25 GHz Switched Filter Error 134 13.25-20 GHz Switched Filter Description: Each of these error messages indicates a failure in a switched filter path within the switched filter assembly.
Page 170 2. Replace the switched filter assembly and run self-test again. • If error 135 is not displayed, the problem is cleared. • If error 135 is still displayed, contact your local Anritsu service center for assistance. Table 5-27. Error Message 138...
Page 171 Troubleshooting Troubleshooting Tables Table 5-28. Error Messages 139, 140 and 141 Error 139 32-40 GHz SDM Section Failed Error 140 25-32 GHz SDM Section Failed Error 141 20-25 GHz SDM Section Failed Description: Each of these error messages indicates a failure in a switched doubler filter path within the SDM. The MG369xB will not produce an RF output in the frequency range of the failed switched doubler filter path.
Page 172 1. Press the OUTPUT key on the front panel to turn the RF output ON. 2. Run self-test again. If error 144 is still displayed, contact your local Anritsu service center for assistance. Table 5-31. Error Message 145...
Page 173 4. Using the oscilloscope, verify the presence of a 10 MHz TTL signal at A3J10. • If present, replace the MCX cable. • If not present, replace the A3 PCB. 5. Run self-test again. If error 148 is still displayed, contact your local Anritsu service center for assistance. MG369xB MM PN: 10370-10367 Rev. H...
Page 174 • If there is no RF signal or if the amplitude of the RF signal is low, replace the switched filter assembly. 7. Run self-test again. If error 136 is still displayed, contact your local Anritsu service center for assistance. 5-32 PN: 10370-10367 Rev.
Page 175: Chapter 6-Removal And Replacement Procedures
When replacing RF components with SMA, K or V connectors it is important to torque these to the Note proper value. In the MG3690B unit that setting is 8 Inch/LBs. You can purchase a Anritsu torque wrench which is set to 8 inch/LB. The Anritsu part number is 01-201.
Page 176 Replaceable Parts Removal and Replacement Procedures Table 6-1. MG369xB Replaceable Subassemblies and Part Numbers (Sheet 1 of 3) Anritsu Assembly Anritsu Alternate Part Model or Numbers Subassembly or Part Name Part Number Number to order Option List Line Fuse (5 Amp Slow Blow)
Page 177 Removal and Replacement Procedures Replaceable Parts Table 6-1. MG369xB Replaceable Subassemblies and Part Numbers (Sheet 2 of 3) Anritsu Assembly Anritsu Alternate Part Model or Numbers Subassembly or Part Name Part Number Number to order Option List YIG Lock PCB Assembly with...
Page 178: Calibration And Verifications After Replacing An Assembly
Calibration and verifications after replacing an assembly. Removal and Replacement Procedures Table 6-1. MG369xB Replaceable Subassemblies and Part Numbers (Sheet 3 of 3) Anritsu Assembly Anritsu Alternate Part Model or Numbers Subassembly or Part Name Part Number Number to order...
Page 179 Removal and Replacement Procedures Calibration and verifications after replacing an assembly. Table 6-2. calibration and Verification Rework Guide (Sheet 2 of 3) Section Assembly Calibration/Verification Procedure Number A3 Reference/Fine Loop Preliminary Calibration Spurious Signals Verification A4 Coarse Loop Phase Noise Verification A5 Analog Instruction or Auxiliary Preliminary Calibration Frequency Modulation Calibration and Verification...
Page 180 Calibration and verifications after replacing an assembly. Removal and Replacement Procedures Table 6-2. calibration and Verification Rework Guide (Sheet 3 of 3) Section Assembly Calibration/Verification Procedure Number Delete Front Panel (Option 17) mmW Bias Output (Option 18) Scan Modulation (Option 20) RF Level Calibration or Verification 4-10 SDM or SQM...
Page 181: Chassis Covers
Note these screws, always use the exact replacement green-headed screws to avoid damage to the instrument. Anritsu PN: 905-8 (long); Z-951102 (short). 1. Use a Phillips screwdriver to remove the screws and the front handle assemblies from the instrument (see Figure 6-1).
Page 182 Chassis Covers Removal and Replacement Procedures Rear Feet Figure 6-1. Front Handle and Rear Feet Removal 8. If the side covers need to be removed, turn the instrument over to return it to the upright position. 9. Remove the screw that fastens the left side cover to the chassis. See Figure 6-2.
Page 183: Front Panel Assembly
Removal and Replacement Procedures Front Panel Assembly Front Panel Assembly This paragraph provides instructions for removing and replacing the front panel assembly of the MG369xB. The front panel assembly contains the A1 front panel PCB. Refer to Figure 6-3 Figure 6-4 during this procedure.
Page 184: A2 Microprocessor Pcb Board
Figure 6-5. A2 Microprocessor PCB Removal Preliminary If possible, save the calibration information using Anritsu’s calibration data save/restore software (P/N 2300-478). The process is: 1. Install the software. 2. Connect the MG369xB to the GPIB bus and power on the MG369xB.
Page 185: A3 Reference/Fine Loop Pcb
Removal and Replacement Procedures A3 Reference/Fine Loop PCB A3 Reference/Fine Loop PCB This paragraph provides instructions for removing and replacing the A3 reference/fine loop PCB, which is located in a shielded enclosure immediately behind the microprocessor board card cage. Preliminary Remove the front handles, rear feet, and top cover as described in Section 6-4.
Page 186: A4 Coarse Loop Pcb
A4 Coarse Loop PCB Removal and Replacement Procedures A4 Coarse Loop PCB This section provides instructions for removing and replacing the A4 coarse loop PCB assembly, which is located immediately behind the A3 reference/fine loop PCB assembly. Preliminary Remove the front handles, rear feet, and top cover as described in Section 6-4.
Page 187 Removal and Replacement Procedures A4 Coarse Loop PCB A4 Mounting Power Supply Screws Mounting Screws A1 Motherboard Power Supply Pulse Generator A4 Coarse Loop A3 Reference Loop Analog Instruction Automatic Level Control (ALC) A21 Rear Panel GPIB YIG Lock Function Generator/ Pulse Generator A9 YIG Module A4 Mounting...
Page 188: A5 To A13 Pcb Removal
A5 to A13 PCB Removal Removal and Replacement Procedures A5 to A13 PCB Removal For access to the A5, A6, A7, A8, A9 and A13 PCB assemblies the card cage cover must be removed first, as follows: Preliminary Remove the front handles, rear feet, and top cover as described in Section 6-4.
Page 189: A5 Auxiliary Pcb
Removal and Replacement Procedures A5 to A13 PCB Removal Coupler Attenuator Switched Filter Module A9J1 A8J11 A7J5 A6J3 A5J1 Power A13P2 Supply Assembly Figure 6-10. Locations of A5, A6, A7, A9 and A13 PCB Assemblies A5 Auxiliary PCB To remove the A5 auxiliary PCB, proceed as follows: 1.
Page 190: A7 Yig Lock Pcb
A5 to A13 PCB Removal Removal and Replacement Procedures A7 YIG Lock PCB To remove the A7 YIG lock PCB, proceed as follows: 1. Disconnect the miniature coax cable connectors from the top edge of the A7 PCB. 2. Disconnect the hard coax cable line from the A7 board sampler at the coax connector on the switched filter assembly.
Page 191: 6-10 Power Supply Assembly
Removal and Replacement Procedures Power Supply Assembly 6-10 Power Supply Assembly This section provides instructions for removing and replacing the power supply assembly, which is located in a shielded enclosure at the left rear of the instrument. Preliminary It is necessary to first remove the card cage cover and instrument side cover, as described in Section 6-9.
Page 192: 12 Volt Standby Power Supply Pcb
Power Supply Assembly Removal and Replacement Procedures See Detail A Power Supply Power Supply regulator PCB Standby Supply To Fan See Detail B REAR VIEW Connect Orange Wire Yellow to Pin 2 (inhibit) of White Power Supply Purple Blue To Power Supply To A20 P1 Blue Brown...
Page 193: A20 Power Supply Regulator
Removal and Replacement Procedures Power Supply Assembly A20 Power Supply Regulator To remove and replace the lower power supply subassembly from the bottom of the power supply enclosure, proceed as follows: 1. If not done previously, remove the upper power supply top assembly and 12 volt standby power supply PCB (previous procedures).
Page 194 Power Supply Assembly Removal and Replacement Procedures 6-20 PN: 10370-10367 Rev. H MG369xB MM...
Page 195: Appendix A-Test Records
Appendix A — Test Records Introduction This appendix provides test records for recording the results of the performance verification tests (Chapter 3) and the calibration procedures (Chapter 4). They jointly provide the means for maintaining an accurate and complete record of instrument performance. Test records are provided for all models of the series MG369xB Synthesized Signal Generators.
Page 196: Internal Time Base Aging Rate Test (Optional
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-6 Internal Time Base Aging Rate Test (Optional) All MG369xB Models Measurement Date and Time Measured Value Upper Limit Uncertainty Frequency Error Value Frequency Error Value (after 24 hours) –9 2x10 per day...
Page 197: Harmonics And Harmonically Related Signal Test Records
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Harmonics and Harmonically Related Signal Test Records All MG369xB Models without Option 15 (Sheet 1 of 2) Power level: The power level changes based on frequency, model and options installed. Set L1 to the lesser of +10 dBm or to the maximum specified power level.
Page 198: Harmonics And Harmonically Related Signal Test Records
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Harmonics and Harmonically Related Signal Test Records All MG369xB Models without Option 15 (Sheet 2 of 2) Power level: The power level changes based on frequency, model and options installed. Set L1 to the lesser of +10 dBm or to the maximum specified power level.
Page 199 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Harmonics and Harmonically Related Signal Test Records All MG369xB Models with Option 15 (Sheet 1 of 2) Power level: The power level changes based on frequency, model and options installed. Set L1 to the lesser of +10 dBm or to the maximum specified power level.
Page 200 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Harmonics and Harmonically Related Signal Test Records All MG369xB Models with Option 15 (Sheet 2 of 2) Power level: The power level changes based on frequency, model and options installed. Set L1 to the lesser of +10 dBm or to the maximum specified power level.
Page 201: Non-Harmonics Signal Test (All Mg369Xb Models
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Non-Harmonics Signal Test (All MG369xB Models) Part 1 (Sheet 1 of 3) MG369xB MG369xB Output Spectrum Spectrum Spectrum Measurement Frequency Power Analyzer Start Analyzer Stop Analyzer Spec. Uncertainty (GHz) Level Frequency (GHz)
Page 202: Non-Harmonics Signal Test (All Mg369Xb Models
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Non-Harmonics Signal Test (All MG369xB Models) Part 1 (Sheet 2 of 3) MG369xB MG369xB Output Spectrum Spectrum Spectrum Measurement Uncertainty Frequency Power Analyzer Start Analyzer Stop Analyzer Spec. (GHz) Level Frequency (GHz)
Page 203 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Non-Harmonics Signal Test (All MG369xB Models) Part 1 (Sheet 3 of 3) MG369xB MG369xB Output Spectrum Spectrum Spectrum Measurement Frequency Power Analyzer Start Analyzer Stop Analyzer Spec. Uncertainty (GHz) Level Frequency (GHz)
Page 204 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Non-Harmonics Signal Test (All MG369xB Models) Part 2 (Sheet 1 of 2) MG369xB Spectrum Output Analyzer Spectrum Spectrum Measurement MG369xB Power Center Analyzer Analyzer Test Result Specification Uncertainty Freq.
Page 205 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Non-Harmonics Signal Test (All MG369xB Models) Part 2 (Sheet 2 of 2) MG369xB Spectrum Output Analyzer Spectrum Spectrum Measurement MG369xB Power Center Analyzer Analyzer Test Result Specification Uncertainty Freq.
Page 206 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-7 Non-Harmonics Signal Test (All MG369xB Models) Reference Footnote 3: Table 1, Option 15 not Installed Units with Option 15 not installed, frequency range from 20 GHz to maximum frequency of model. For output power with Option 22 derate all specifications by 2 dB.
Page 207: Single Sideband Phase Noise Test With Agilent E5052B Signal Source Analyzer And E5053A Down Converter
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models without Options 3 or 30 Single Sideband Phase Noise (Sheet 1 of 2) Measurement Frequency Offset Measured Value (dBc)
Page 208 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models without Options 3 or 30 Single Sideband Phase Noise (Sheet 2 of 2) Measurement Frequency Offset Measured Value (dBc)
Page 209 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models with Option 3 (Sheet 1 of 4) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB)
Page 210 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models with Option 3 (Sheet 2 of 4) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB)
Page 211 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models with Option 3 (Sheet 3 of 4) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB)
Page 212 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models with Option 3 (Sheet 4 of 4) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB)
Page 213 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models with Option 30 (Sheet 1 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB)
Page 214 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models with Option 30 (Sheet 2 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB)
Page 215 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models with Option 30 (Sheet 3 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB)
Page 216: Single Sideband Phase Noise Test: Power Line And Fan Rotation Emissions With Agilent E5052B Signal Source Analyzer
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models (Sheet 1 of 3) Measurement Frequency Offset Measured Value (dBc)
Page 217 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models (Sheet 2 of 3) Measurement Frequency Offset Measured Value (dBc)
Page 218: And E5053A Down Converter
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions with Agilent E5052B Signal Source Analyzer and E5053A Down Converter All MG369xB Models (Sheet 3 of 3) Measurement Frequency Offset Measured Value (dBc)
Page 219: Single Sideband Phase Noise Test With
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with AeroFlex PN9000 Phase Noise System All MG369xB Models without Options 3 or 30 Single Sideband Phase Noise (Sheet 1 of 2) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc)
Page 220 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with AeroFlex PN9000 Phase Noise System All MG369xB Models without Options 3 or 30 Single Sideband Phase Noise (Sheet 2 of 2) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc)
Page 221 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with AeroFlex PN9000 Phase Noise System All MG369xB Models with Option 3 (Sheet 1 of 4) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 15 MHz (Models with Option 4 Only) 10 Hz...
Page 222 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with AeroFlex PN9000 Phase Noise System All MG369xB Models with Option 3 (Sheet 2 of 4) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) 10 Hz –84...
Page 223 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with AeroFlex PN9000 Phase Noise System All MG369xB Models with Option 3 (Sheet 3 of 4) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) 100 Hz –77...
Page 224 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with AeroFlex PN9000 Phase Noise System All MG369xB Models with Option 3 (Sheet 4 of 4) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) 1 kHz –94...
Page 225 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with AeroFlex PN9000 Phase Noise System All MG369xB Models with Option 30 (Sheet 1 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 15 MHz (Models with Option 4 Only) 10 Hz...
Page 226 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with AeroFlex PN9000 Phase Noise System All MG369xB Models with Option 30 (Sheet 2 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) 10 Hz –64...
Page 227 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test with AeroFlex PN9000 Phase Noise System All MG369xB Models with Option 30 (Sheet 3 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 10.0 GHz (8 GHz for MG3691B) 10 Hz...
Page 228: Single Sideband Phase Noise Test: Power Line And Fan Rotation Emissions With Aeroflex Pn9000 Phase Noise System
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions with AeroFlex PN9000 Phase Noise System All MG369xB Models (Sheet 1 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 15 MHz (Models with Option 4 Only)
Page 229 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions with AeroFlex PN9000 Phase Noise System All MG369xB Models (Sheet 2 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequencies: 1.99 GHz (Models with Option 5 Only)
Page 230 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-8 Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions with AeroFlex PN9000 Phase Noise System All MG369xB Models (Sheet 3 of 3) Measurement Frequency Offset Measured Value (dBc) Upper Limit (dBc) Uncertainty (dB) Test Frequency: 25.0 GHz (not performed on MG3691B or MG3692B)
Page 231 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Log Conformity Test All MG369xB Models (Sheet 1 of 2) Set F1 to 2.199 GHz (Option 4) Set F1 to 2.201 GHz (Option 4) or 1.999 GHz (Option 5) Only or 2.001 GHz (All Others) Measured Measured...
Page 232: Power Level Log Conformity Test
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Log Conformity Test All MG369xB Models (Sheet 2 of 2) Set F1 to 2.199 GHz (Option 4) Set F1 to 2.201 GHz (Option 4) or 1.999 GHz (Option 5) Only or 2.001 GHz (All Others) Measured Measured...
Page 233: Power Level Accuracy Test
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models without Option 2 (Sheet 1 of 3) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 10 MHz DUT F1: 15 MHz...
Page 234 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models without Option 2 (Sheet 2 of 3) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 14.0 GHz DUT F1: 16.0 GHz DUT F1: 18.0 GHz...
Page 235 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models without Option 2 (Sheet 3 of 3) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 38.0 GHz DUT F1: 40.0 GHz...
Page 236 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 1 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 10 MHz DUT F1: 15 MHz...
Page 237 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 2 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 60 MHz DUT F1: 500 MHz...
Page 238 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 3 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 1.0 GHz DUT F1: 2.0 GHz...
Page 239 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 4 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 4.0 GHz Receiver: 8.51 MHz...
Page 240 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 5 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 6.0 GHz DUT F1: 8.0 GHz...
Page 241 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 6 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 12.0 GHz DUT F1: 14.0 GHz...
Page 242 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 7 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 18.0 GHz DUT F1: 20.0 GHz...
Page 243 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 8 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 24.0 GHz DUT F1: 26.0 GHz...
Page 244 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 9 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 30.0 GHz DUT F1: 32.0 GHz...
Page 245 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 10 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 36.0 GHz DUT F1: 38.0 GHz...
Page 246 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Accuracy Test All MG369xB Models with Option 2 (Sheet 11 of 11) Measured Power Measured Power Measured Power Specification Measurement Set L1 (dBm) (dBm) (dBm) (dBm) Uncertainty (dB) DUT F1: 65 or (4)(5)
Page 247: Power Level Flatness Test
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Flatness Test All MG369xB Models without Option 2 (1 of 2) MG3691B and MG3692B Set L1 to +17 dBm (for models with Option 22, set L1 to +15 dBm) Maximum Minimum Variation...
Page 248 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Flatness Test All MG369xB Models without Option 2 (2 of 2) MG3695B Set L1 to +3 dBm (for models with Option 22, set L1 to +1 dBm) Maximum Minimum Variation...
Page 249 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Flatness Test All MG369xB Models with Option 2 (1 of 2) MG3691B and MG3692B Set L1 to +15 dBm (for models with Option 2E or 22, set L1 to +13 dBm; for models with Option 2E and 22, set L1 to +11 dBm.) Maximum Minimum...
Page 250 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Power Level Flatness Test All MG369xB Models with Option 2 (2 of 2) MG3695B Set L1 to +0 dBm (for models with Option 22, set L1 to -2 dBm.) Maximum Minimum Variation...
Page 251: Maximum Leveled Power Test
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Maximum Leveled Power Test All MG369xB Models without Option 15 (1 of 2) MG3691B Set L1 to +20 dBm Minimum Specification Specification Specification Measured w/out with with Measurement Power # of Power...
Page 252 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Maximum Leveled Power Test All MG369xB Models without Option 15 (2 of 2) MG3695B or MG3696B Set L1 to +20 dBm Specification Specification Minimum w/out with Measurement Power Measured Option 2 Option 2...
Page 253 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Maximum Leveled Power Test All MG369xB Models with Option 15 and without Options 4 or 5 (1 of 2) MG3691B Set L1 to +30 dBm Minimum Specification Specification Specification Measured w/out...
Page 254 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Maximum Leveled Power Test All MG369xB Models with Option 15 and without Options 4 or 5 (2 of 2) MG3695B Set L1 to +30 dBm Minimum Measured Specification Specification Measurement Power...
Page 255 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Maximum Leveled Power Test All MG369xB Models with Option 15 and Options 4 or 5 (1 of 3) MG3691B Set L1 to +30 dBm Minimum Specification Specification Specification Measured w/out with...
Page 256 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Maximum Leveled Power Test All MG369xB Models with Option 15 and Options 4 or 5 (2 of 3) MG3694B Set L1 to +30 dBm Minimum Measured Specification Specification Measurement Power Power...
Page 257 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-9 Maximum Leveled Power Test All MG369xB Models with Option 15 and Options 4 or 5 (3 of 3) MG3696B Set L1 to +30 dBm Minimum Measured Specification Specification Measurement Power Power...
Page 258: Frequency Modulation Test
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-10 Frequency Modulation Test All MG369xB Models with Option 12, 25X, or 28X (1 of 5) Locked External FM Accuracy at 5 GHz Measured Test Results Specification Measurement Uncertainty Vmodon = None Vmodoff =...
Page 259 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-10 Frequency Modulation Test All MG369xB Models with Option 12, 25X, or 28X (2 of 5) Locked Low-Noise Internal FM Accuracy at 5 GHz Measured Test Results Specification Measurement Uncertainty Vmodon = None Vmodoff =...
Page 260 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-10 Frequency Modulation Test All MG369xB Models with Option 12, 25X, or 28X (3 of 5) Wide External ΦM Accuracy at 20 GHz Measured Test Results Specification Measurement Uncertainty Vmodon = None Vmodoff =...
Page 261 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-10 Frequency Modulation Test All MG369xB Models with Option 12, 25X, or 28X (4 of 5) Narrow Internal ΦM Accuracy at 20 GHz Measured Test Results Specification Measurement Uncertainty Vmodon = None Vmodoff =...
Page 262 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-10 Frequency Modulation Test All MG369xB Models with Option 12, 25X, or 28X (5 of 5) Wide External ΦM Flatness Function Measurement Generator MG369xB ΦM Vmodoff Vmodon Specification Uncertainty Frequency Sensitivity (dBm)
Page 263: Amplitude Modulation Test
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-11 Amplitude Modulation Test All MG369xB Models with Option 14, 25X, or 28X (1 of 4) External AM Accuracy vs. Frequency at 50% Modulation DUT Frequency LO Frequency Measurement (GHz) (GHz) M (%)
Page 264 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-11 Amplitude Modulation Test All MG369xB Models with Option 14, 25X, or 28X (2 of 4) Internal AM Accuracy vs. Frequency at 50% Modulation DUT Frequency LO Frequency Measurement (GHz) (GHz) M (%)
Page 265 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-11 Amplitude Modulation Test All MG369xB Models with Option 14, 25X, or 28X (3 of 4) AM Roll Off at 50 kHz Bandwidth Frequency LO Frequency Multimeter Multimeter Calculated Specification Measurement (GHz)
Page 266 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-11 Amplitude Modulation Test All MG369xB Models with Option 14, 25X, or 28X (4 of 4) AM Flatness DUT F1 LO F1 Spec. flat (GHz) (GHz) (dB) (dB) (dB) ±0.30 ±0.02 1.52053...
Page 267: Pulse Modulation Test
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-12 Pulse Modulation Test All MG369XB Models with Option 13, 24, 26X, or 27 (1 of 3) Pulse Rise and Fall Times DUT Frequency Measurement (GHz) Rise Time (ns) Fall Time (ns) Specification (ns) Uncertainty (±...
Page 268 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-12 Pulse Modulation Test All MG369XB Models with Option 13, 24, 26X, or 27 (2 of 3) Pulse Power Accuracy (Pulse Width ≥ 1 μs) DUT Frequency Specification Measurement (GHz) (Volts) (Volts)
Page 269 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 3-12 Pulse Modulation Test All MG369XB Models with Option 13, 24, 26X, or 27 (3 of 3) Pulse On/Off Ratio Measurement DUT Frequency (GHz) (dB) Specification (dB) Uncertainty (dB) depth 0.010 –80...
Page 270: Preliminary Calibration
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 4-7 Preliminary Calibration Procedure Step Step Completion 1. Internal DVM Calibration (calterm 119) 2. 10 MHz Reference Oscillator Calibration (calterm 130) 3. Fine loop Pre-tune DAC (calterm 136.) 4. Coarse Loop Pre-tune DAC Calibration (calterm 137) 5.
Page 271: Frequency Synthesis Test (1
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 4-8 Frequency Synthesis Test (1 of 3) MG3691B MG3692B Coarse Loop Coarse Loop 2.000 000 000 00 2.000 000 000 00 5.000 000 000 00 5.000 000 000 00 8.000 000 000 00 8.000 000 000 00 10.000 000 000 00...
Page 272 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 4-8 Frequency Synthesis Test (2 of 3) MG3693B MG3694B Coarse Loop Coarse Loop 2.000 000 000 00 2.000 000 000 00 5.000 000 000 00 5.000 000 000 00 8.000 000 000 00 8.000 000 000 00 11.000 000 000 00...
Page 273 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 4-8 Frequency Synthesis Test (3 of 3) MG3695B MG3696B Coarse Loop Coarse Loop 2.000 000 000 00 2.000 000 000 00* 5.000 000 000 00 5.000 000 000 00 8.000 000 000 00 8.000 000 000 00 11.000 000 000 00...
Page 274: Switched Filter Shaper Calibration
3. Shaper DAC Adjustment (calterm 138) 4. Store the Calibration Data (calterm 787) Section 4-10 RF Level Calibration This calibration is performed using an automatic test system. Contact Anritsu Customer Service for further information. Section 4-11 ALC Bandwidth Calibration Procedure Step Step Completion 1.
Page 275: Am Calibration
Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: Section 4-13 AM Calibration Procedure Step Step Completion 1. Linear AM Calibration (calterm 112) 2. Linear AM Calibration SDM (calterm 172) 3. Log AM Calibration (calterm 113) 4. Log AM Calibration SDM (calterm 173) 5.
Page 276 Test Records MG369__B Firmware Revision: Operator: Serial Number: Date: Options: A-82 PN: 10370-10367 Revision: H MG369xB MM...
Page 277: Appendix B-Technical Data Sheet
Appendix B — Technical Data Sheet MG369xB Technical Data Sheet The latest version of the MG369xB RF/Microwave Signal Generators Technical Data Sheet, Anritsu PN: 11410-00344, can be downloaded from the Anritsu Internet site: http://www.anritsu.com The data sheet provides performance specifications for all of the various models in the MG369xB series.
Page 278 PN: 10370-10367 Revision H MG369xB MM...
Page 279: Index
Frequency Modulation .....2-11 Anritsu, contact ......1-2 Tests .
Page 280 Safety Symbols ......1-1 URL contacting Anritsu .....1-2 Spurious Signals .
Page 282 Anritsu utilizes recycled paper and environmentally conscious inks and toner. Anritsu Company 490 Jarvis Drive Morgan Hill, CA 95037-2809 http://www.anritsu.com...

Anritsu MG369 B Series Maintenance Manual

Chapter 1-General Information

Chapter 2-Functional Description

Chapter 3-Performance Verification

Chapter 4-Adjustment

Chapter 5-Troubleshooting

Chapter 6-Removal And Replacement Procedures

Appendix A-Test Records

Appendix B-Technical Data Sheet

Quick Links

Troubleshooting

Need help?

Questions and answers

Related Manuals for Anritsu MG369 B Series

Summary of Contents for Anritsu MG369 B Series

Table of Contents