Anritsu MG369 A Series Maintenance Manual
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Anritsu MG369 A Series Maintenance Manual

Anritsu MG369 A Series Maintenance Manual

Synthesized signal generators
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SERIES
MG369XA
SYNTHESIZED SIGNAL GENERATORS
MAINTENANCE MANUAL
490 JARVIS DRIVE
P/N: 10370-10355
REVISION: D
MORGAN HILL, CA 95037-2809
PRINTED: FEBRUARY 2005
COPYRIGHT 2005 ANRITSU CO.
www.valuetronics.com

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  • Page 1 SERIES MG369XA SYNTHESIZED SIGNAL GENERATORS MAINTENANCE MANUAL 490 JARVIS DRIVE P/N: 10370-10355 REVISION: D MORGAN HILL, CA 95037-2809 PRINTED: FEBRUARY 2005 COPYRIGHT 2005 ANRITSU CO. www.valuetronics.com...

  • Page 2: Limitation Of Warranty

    WARRANTY The Anritsu product(s) listed on the title page is (are) warranted against defects in materials and workmanship for three years from the date of shipment. Anritsu's obligation covers repairing or replacing products which prove to be defective during the warranty period.
  • Page 3 www.valuetronics.com...
  • Page 4 www.valuetronics.com...

  • Page 5: Safety Symbols

    Safety Symbols Used on Equipment and in Manuals (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.) The following safety symbols are used inside or on the equipment near operation locations to provide infor- mation about safety items and operation precautions.

  • Page 6: For Safety

    For Safety WARNING Always refer to the operation manual when working near locations where 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. In addition, the equipment perfor- mance may be reduced.

  • Page 7: Table Of Contents

    Table of Contents Chapter 1 General Information Scope of Manual ......1-3 Introduction ......1-3 Description .
  • Page 8 Table of Contents (Continued) Chapter 2 Functional Description Introduction ......2-3 Major Subsystems .
  • Page 9 Table of Contents (Continued) Chapter 3 Performance Verification Introduction ......3-3 Test Records .
  • Page 10 Table of Contents (Continued) 3-12 Amplitude Modulation Tests ..... 3-83 External AM Accuracy · · · · · · · · · · · · · · · · · · · 3-84 Internal AM Accuracy ·...
  • Page 11 Table of Contents (Continued) 4-10 RF Level Calibration ......4-22 4-11 ALC Bandwidth Calibration ..... 4-25 Equipment Setup ·...
  • Page 12 Power Supply Regulator PCB · · · · · · · · · · · · · · · · 6-22 6-10 Anritsu Customer Service Centers....6-24 Appendix A Test Records Introduction .
  • Page 13 Chapter 1 General Information Table of Contents Scope of Manual ......1-3 Introduction ......1-3 Description .
  • Page 14 Figure 1-1. Typical Series MG369XA Synthesized Signal Generator (Model MG3692A Shown) MG369XA MM www.valuetronics.com...

  • Page 15: Scope Of Manual

    Chapter 1 General Information Scope of Manual This manual provides service information for the Model MG369XA Signal Generators. The service information includes replaceable parts information, troubleshooting, performance verification tests, calibra- tion procedures, functional circuit descriptions and block diagrams, and assembly/subassembly removal and replacement. Throughout this manual, the terms MG369XA or synthesizer are used to refer to the in- strument.
  • Page 16 Description General Information Table 1-1. Series MG369XA Models Max Leveled Max Leveled Output Power Model Frequency Max Leveled Output Power w/Electronic Number Configuration Range Output Power w/Step Attenuator Step Attenuator ³0.01 – £2.2 GHz w/opt 4 +17.0 dBm +15.0 dBm +13.0 dBm ³0.01 –...

  • Page 17: Identification Number

    “linked” such that the viewer can choose a topic to view from the dis- played “bookmark” list and “jump” to the manual page on which the topic resides. The text can also be word-searched. Contact Anritsu cus- tomer service for price and availability.

  • Page 18: Level Of Maintenance

    Level of Maintenance General Information Level of Maintenance Maintenance of the MG369XA consists of: Troubleshooting the instrument to a replaceable subassembly or RF component Repair by replacing the failed subassembly or RF component. Calibration Preventive maintenance The MG369XA firmware includes internal diagnos- Trouble- tics that self-test most of the internal assemblies.
  • Page 19 General Information Component Handling 1. Do not touch exposed contacts 2. Do not slide static sensitive 3. Do not handle static sensitive on any static sensitive component across any surface. components in areas where the component. floor or work surface covering is capable of generating a static charge.

  • Page 20: Preventive Maintenance

    Preventive Maintenance General Information 1-10 Preventive The MG369XA must always receive adequate ventilation. A blocked fan filter can cause the instrument to overheat and shut down. Check Maintenance and clean the rear panel fan honeycomb filter periodically. Clean the fan honeycomb filter more frequently in dusty environments. Clean the filter as follows.

  • Page 21: Startup Configurations

    General Information Startup Configurations 1-11 Startup The MG369XA comes from the factory with a jumper across pins 2 and 3 of the A2 microprocessor PCB connector JP1 (Figure 1-4). In this Configurations configuration, connecting the instrument to line power automatically places it in operate mode (front panel OPERATE LED on).

  • Page 22: Recommended Test Equipment

    Input Impedance: 50W Frequency Counter Anritsu Model MF2414B C, P Resolution: 1 Hz Other: External Time Base Input Anritsu Model ML2437A/38A with Power Sensor: Power Meter with Frequency: 0.01 to 65 GHz MA2421A (100 kHz to 18 GHz) C, P Power Sensor Power Range: –70 to +20 dBm...
  • Page 23 Recommended Test Equipment (2 of 2) 1-2. CRITICAL RECOMMENDED INSTRUMENT USAGE* SPECIFICATION MANUFACTURER/MODEL Anritsu, Model 41KC-3 Frequency Range: DC to 40 GHz Anritsu, Model 41KC-6 Attenuator Max Input Power: >+20 dBm C, P Anritsu, Model 41KC-10 Attenuation: 3, 6, 10, and 20 dB...
  • Page 24 www.valuetronics.com...
  • Page 25 Chapter 2 Functional Description Table of Contents Introduction ......2-3 Major Subsystems ......2-3 Digital Control ·...
  • Page 26 Table of Contents (Continued) RF Deck Assemblies ......2-20 RF Deck Configurations · · · · · · · · · · · · · · · · · · · 2-20 YIG-tuned Oscillator ·...

  • Page 27: Major Subsystems

    Chapter 2 Functional Description Introduction This chapter provides brief functional descriptions of the major sub- systems that are contained in each model of the MG369XA. In addi- tion, the operation of the frequency synthesis, automatic level control (ALC), and RF deck subsystems is described so that the reader may better understand the overall operation of the instrument.
  • Page 28 Major Subsystems Functional Description This circuit subsystem consists of the front panel, Front Panel the front panel rotary data knob, the front panel Assembly control PCB, and the liquid crystal display (LCD). The subsystem interfaces the front panel LCD, light emitting diodes (LEDs), and keys to the CPU via the dedicated data and address bus.
  • Page 29 Functional Description Major Subsystems The A9 YIG assembly contains the YIG-tuned oscil- A9 YIG lator and associated PCB assembly. The PCB assem- Assembly bly contains the driver circuitry that provides the tuning current and bias voltages for the YIG-tuned oscillator. The CPU controls the A9 YIG assembly via the dedicated data and address bus.
  • Page 30 Major Subsystems Functional Description The A21 rear panel PCB and the A2 microprocessor Inputs/ PCB contain the interface circuits for the majority of Outputs the rear panel input and output connectors, includ- ing the AUX I/O connector. The A5 Auxiliary PCB (or the optional A5 Analog In- struction 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...

  • Page 31: Front Panel Assembly

    Functional Description Overall Block Diagram Rear Panel Front Panel Inputs Outputs Connectors Power Input To A3 EFC IN Reference Loop RF OUTPUT From RF Deck From RF Deck Power Supply Assembly RF OUTPUT 110/220 VAC (Option 9) Serial Data To A3 10 MHz REF IN Reference Loop From A3...
  • Page 32 Overall Block Diagram Functional Description Serial Data 10 MHz (100 MHz for Option 3) Coarse Serial Data 500 MHz Loop FM/ M Signal Reference (From A21) SDM Bias Loop 500 MHz 219.5 - 245 MHz Auxiliary/Analog To A11 Instruction 10 MHz To A13 A7A1 10 MHz...

  • Page 33: Frequency Synthesis

    Functional Description Frequency Synthesis Frequency Synthesis The frequency synthesis subsystem provides phase-lock control of the MG369XA 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 syn- thesized, low-noise RF output signal.
  • Page 34 Frequency Synthesis Functional Description If a programmable frequency divider is used, a num- ber of frequencies can be phase-locked to the same reference. The limitation is that all must be exact multiples of the reference. The A4 coarse loop and A3 fine loop section both use programmable fre- quency dividers.
  • Page 35 Functional Description Overall Block Diagram A3 Reference / Fine Loop 10 MHz to A13 (Option 24) 10 MHz to A8 (Option 23) Mixer Phase Frequency 100 MHz to Detector A4 (Option 3) Loop AMP 100 MHz 10 MHz VCXO or Option 16 VCXO 10 MHz Output 10 MHz...
  • Page 36 Overall Block Diagram Functional Description 40 - P/O RF Deck Source 65 GHz 16.8 GHz LPF Quadrupler 37 GHz HPF and 6 dB Pad Module Level To Step Detector Attenuator Forward 0.01 - 65 GHz 10 - 16.8 GHz Coupler RF Output Detector 1 Switched...
  • Page 37 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 tun- ing for each desired operating frequency is accom- plished by programming the fine-loop oscillator.
  • Page 38 Frequency Synthesis Functional Description Refer to the block diagram of the RF Deck shown in RF Outputs Figure 2-4 (page 2-27) for the following description. 0.01 MHz to The MG369XA uses one YIG-tuned oscillator capa- 65 GHz ble of generating RF signals in the frequency range of 2.0 to 20 GHz (the MG3691A YIG-tuned oscillator generates RF signals in the frequency range of 2.0 GHz to 8.4 GHz).

  • Page 39: Frequency Modulation

    Functional Description Frequency Synthesis 40 to 50 GHz (Model MG3695A) RF output frequencies of 40 to 50 GHz are produced by quadrupling the 10 to 12.5 GHz fundamental fre- quencies. Phase-lock control of the 10 to 12.5 GHz fundamental frequencies is accomplished prior to doubling.
  • Page 40 Frequency Synthesis Functional Description Circuits on the A7A1 FM Module adjust the modu- lating signal for the FM sensitivity selected, convert the modulating signal to a FM signal by differentia- tion, and then sum it into the YIG loop FM control path.

  • Page 41: Alc Loop Operation

    Functional Description ALC/AM/Pulse Modulation ALC/AM/Pulse The MG369XA ALC, AM, and pulse modulation subsystems provide automatic level control (ALC), amplitude modulation (AM), and pulse Modulation modulation of the RF output signal. The ALC loop consists of circuits located on the A6 ALC PCB, and the A9 YIG PCB assembly. These cir- cuits interface with the A10 switched filter assembly, the A11 down converter assembly and the directional coupler/level detector (all lo- cated on the RF deck).
  • Page 42 ALC/AM/Pulse Modulation Functional Description External Leveling In the external leveling mode, an external detector or power meter monitors the RF output level of the MG369XA instead of an internal level detector. The signal from the external detector or power meter goes to the A6 ALC PCB assembly from the rear panel input.

  • Page 43: Pulse Generator Operation

    Functional Description ALC/AM/Pulse Modulation Pulse Modulation Operation During pulse modulation, the ALC level amplifier (A6 ALC PCB) is operated as a sample/hold amplifier. The level amplifier is synchronized with the modulating pulses from the A13 Pulse Genera- tor PCB so that the ALC loop effectively operates only during the ON portion of the pulsed modulated RF output.

  • Page 44: 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 connec- tor. It is capable of generating RF signals in the frequency range of 0.01 to 65 GHz (0.1Hz to 65 GHz with Option 22).

  • Page 45: Yig-Tuned Oscillator

    Functional Description RF Deck Assemblies There are two YIG-tuned oscillator configurations. YIG-tuned The MG3691A uses a single-band, 2 to 8.4 GHz, Oscillator YIG-tuned oscillator. All other MG369XA models use a dual-band, 2 to 20 GHz YIG-tuned oscillator. The dual-band YIG-tuned oscillator contains two oscilla- tors—one covering the frequency range of 2 to 8.4 GHz and one covering the frequency range of 8.4 to 20 GHz.

  • Page 46: Rf Signal Filtering

    RF Deck Assemblies Functional Description The RF signal from the YIG-tuned oscillator is RF Signal routed to the level control circuits located on the A10 Filtering switched filter assembly and then, via PIN switches, to switched low-pass filters. The PIN switch drive current signals are generated on the A6 ALC PCB and routed to the switch control input on the A10 as- sembly.

  • Page 47: To 2 Ghz Down Converter (Option 5)

    Functional Description RF Deck Assemblies The 0.01 to 2 GHz down converter assembly (shown 0.01 to 2 GHz in Figure 2-4) contains a 6.5 GHz VCO that is Down phase-locked to the 500 MHz reference signal from Converter the A3 reference loop PCB. The 6.5 GHz VCO's (Option 5) phase-lock condition is monitored by the CPU.
  • Page 48 RF Deck Assemblies Functional Description The A11 switched doubler module is used on all Switched MG369XA models with RF output frequencies Doubler >20 GHz. Model MG3693A uses a SDM to double the Module fundamental frequencies of 10 to 15 GHz to produce RF output frequencies of 20 to 30 GHz.
  • Page 49 Functional Description RF Deck Assemblies The source quadrupler module, found in >40 GHz Source models, is used to quadruple the fundamental fre- Quadrupler quencies of 10 to 16.25 GHz to produce RF output Module frequencies of 40 to 65 GHz. The RF signal inputs for the SQM come from the switched filter assembly.
  • Page 50 RF Deck Assemblies Functional Description The optional step attenuators available for use with Step the MG369XA models are as follows: Attenuators Mechanical step attenuator £20 GHz, with a 110 dB range, for model MG3692A (Option 2A) Mechanical step attenuator £40 GHz, with a 110 dB range, for models MG3693A and MG3694A (Option 2B) Mechanical step attenuator ³40 GHz, with a...
  • Page 51 RF Deck Circuits Overall Block Diagram 20 - 40 GHz >+8.5 dBm A12 Switched Doubler Module - D28540 2-20 GHz A10 Switched Filter Assy. - D45194 (Std) (Models MG3693A/4A only) YIG Oscillator - D45198 (Opt 15A) 20 - 25 GHz BPF P/O A9 3.3 GHz LPF Directional...
  • Page 52 Overall Block Diagram RF Deck Circuits S o u r c e Q u a d r u p l e r M o d u l e " 1 6 . 8 G H z L P . B P . 3 7 G H z H P .
  • Page 53 Chapter 3 Performance Verification Table of Contents Introduction ......3-3 Test Records ......3-3 Connector and Key Notation.
  • Page 54 Table of Contents (Continued) 3-11 Frequency Modulation Tests ..... 3-32 FM Attenuator · · · · · · · · · · · · · · · · · · · · · · · 3-33 Locked FM Accuracy ·...

  • Page 55: Chapter 3 Performance Verification

    Chapter 3 Performance Verification Introduction This chapter contains tests that can be used to verify the performance of the series MG369XA Synthesized Signal Generators to specifica- tions. These tests support all instrument models having any version of firmware and instrument models with the following options: Option 2X, MG369XA (mechanical step attenuator) Option 2E, MG3691A (electronic step attenuator) Option 3 (ultra low phase noise)

  • Page 56: Connector And Key Notation

    In some cases, you may substi- tute test equipment having the same critical specifications as the test equipment indicated in the recommended test equipment list. Contact your local Anritsu service center if you need clarification of any equip- ment or procedural reference. Measurement The test records found in Appendix A specify a measurement uncer- tainty.
  • Page 57 Input Impedance: 50W Frequency Counter Anritsu Model MF2414B Resolution: 1 Hz Other: External Time Base Input Anritsu Model ML2437A/38A with Power Sensor: Power Meter with Frequency: 0.01 to 65 GHz MA2474A (0.01 to 40 GHz) Power Sensor Power Range: –70 to +20 dBm SC6230 (0.01 to 65 GHz)

  • Page 58: Internal Time Base Aging Rate Test

    Internal Time Base Aging Rate Test Performance Verification Internal Time Base The following test can be used to verify that the MG369XA 10 MHz time base is within its aging specification. The instrument derives its Aging Rate Test frequency accuracy from an internal 10 MHz crystal oscillator stan- dard.
  • Page 59 Performance Verification Internal Time Base Aging Rate Test The frequency error is measured at the start and Test finish of the test time period of 24 hours. The aging Procedure rate is the difference between the two error read- ings. Step 1.
  • Page 60 Internal Time Base Aging Rate Test Performance Verification Step 7. Wait for 24 hours, then record the frequency error value in the test record. Step 8. The aging rate is the difference between the two frequency error values. Step 9. Record the computed result in the test record. To meet the specification, the computed aging rate –9 –10...

  • Page 61: Spurious Signals Test

    Performance Verification Spurious Signals Test 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 MG369XA’s CW RF output signal is fed directly into a spectrum analyzer.
  • Page 62 Spurious Signals Test Performance Verification The following procedure lets you measure the worst Test case spurious signals (harmonic and non-harmonic Procedure up to 50 GHz) of the MG369XA’s RF output. Step 1. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset.

  • Page 63: Single Sideband Phase Noise Test

    Single Sideband The following test can be used to verify that the MG369XA meets its single sideband phase noise specifications. For this test, an Anritsu Phase Noise Test MG3694A (with Options 3 and 4) signal generator is required to act as a local oscillator (LO).
  • Page 64 Single Sideband Phase Noise Test Performance Verification P N 9 0 0 0 M G 3 6 9 4 A ( L O ) P h a s e N o i s e C o n n e c t t o E . C I n p u t f o r . r e q u e n c i e s < 2 . 0 G H z M e a s u r e m e n t S y s t e m .
  • Page 65 Performance Verification Single Sideband Phase Noise Test The following procedure lets you measure the RF Test output single sideband phase noise levels to verify Procedure that they meet specifications. Step 1. Set the MG369XA (DUT) GPIB address as follows: a. Press SYSTEM, then Config. The System Configu- ration menu is displayed.
  • Page 66 Single Sideband Phase Noise Test Performance Verification 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 67 Performance Verification Single Sideband Phase Noise Test h. Select the Calib/Fcounter menu: (1) Select Freq IF and press <Enter> A frequency close to the difference of the RF and LO frequencies is displayed in the menu item. (2) Press Esc to exit the menu i.
  • Page 68 Single Sideband Phase Noise Test Performance Verification Step 5. On the PN9000 system, select the Measure menu, then select OK to perform the measurement. When prompted for curve name, press N for no. Step 6. When the measurement completes, select the Process/Marker menu: a.
  • Page 69 Performance Verification Single Sideband Phase Noise Test Table 3-3. PN9000 Phase Noise Test Table (1 of 2) Test 9.999999 Frequency 15 MHz 30 MHz 60 MHz 120 MHz 250 MHz 499 MHz 600 MHz 1.99 GHz Models with Models with Option 5 Notes: Models with Option 4 Only Option 22...
  • Page 70 Single Sideband Phase Noise Test Performance Verification Table 3-3. PN9000 Phase Noise Test Table (2 of 2) Test Frequency 2.01 GHz 2.19 GHz 2.21 GHz 6 GHz 8 GHz 10 GHz 19.99 GHz 20.01 GHz 25 GHz All Models Models with Option 4 MG3691A All Models >20 GHz Notes:...

  • Page 71: Power Level Accuracy And Flatness Tests

    Step 2. Connect the power sensor to the RF Output of the MG369XA. Step 3. Connect the special AUX I/O interface cable (Anritsu Part No. 806-90) to the MG369XA rear panel AUX I/O connector. Connect the cable BNC connectors as follows: a.
  • Page 72 Power Level Accuracy and Flatness Tests Performance Verification The log conformity test verifies the dynamic range Power Level and level accuracy of the Automatic Level Control (ALC) loop. Power level accuracy is tested in both Conformity 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 73 Performance Verification Power Level Accuracy and Flatness Tests Step 4. On the MG369XA, use the cursor control key (diamond-shaped key) to decrement L1 to the next test power level in the test record. Measure and record the power meter reading in the test record. Step 5.
  • Page 74 Power Level Accuracy and Flatness Tests Performance Verification Power level accuracy for power levels of –60 dBm Power Level and above are tested by stepping the output power Accuracy level down in 5 dB increments from its maximum (³ –60 dBm) rated power level and measuring the output power level using a power meter at each step.
  • Page 75 Performance Verification Power Level Accuracy and Flatness Tests Power level accuracy for power levels below Power Level –60 dBm is tested in two methods. First, by measur- Accuracy ing the MG369XA’s RF output directly on a measur- (< –60 dBm) ing receiver;...
  • Page 76 Power Level Accuracy and Flatness Tests Performance Verification The following procedure lets you verify the power ac- Test curacy and flatness for all power level measure- Procedure ments below –60 dBm. Step 1. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset.
  • Page 77 Performance Verification Power Level Accuracy and Flatness Tests f. Press Restart and wait for the averaging count to finish (Average: 8/8). g. Read the measured value and calculate the line (and mixer) loss offset as follows: |Receiver Reading|– 50 dBm = Offset The offset value should be a positive number.
  • Page 78 Power Level Accuracy and Flatness Tests Performance Verification Power level flatness is tested by measuring the out- Power Level put power level variation during a full band sweep Flatness in the manual sweep mode. Step 1. Connect the equipment as shown in Figure 3-4 on page 3-19.

  • Page 79: Maximum Leveled Power

    Performance Verification Power Level Accuracy and Flatness Tests Maximum leveled power is tested by measuring the Maximum output power level during a full band sweep in the Leveled Power manual sweep mode. Step 1. Connect the equipment as shown in Figure 3-4 on page 3-19.

  • Page 80: Residual Fm Tests

    Residual FM Tests Performance Verification 3-10 Residual FM Tests This procedure verifies the frequency stability of the MG369XA RF output when in the locked mode and when the FM input circuitry is active, but not modulating the RF output. The RF output of the MG369XA is down converted to a frequency that a modulation analyzer can read.
  • Page 81 Performance Verification Residual FM Tests The following procedure lets you measure residual Locked FM FM in the normal locked mode (modulation circuits Mode Off not active): Step 1. Set up the LO as follows: a. Reset the instrument by pressing SYSTEM, then Reset.
  • Page 82 Residual FM Tests Performance Verification The following procedure lets you measure residual Locked FM FM with the locked FM mode on (modulation cir- Mode On cuits active): Step 1. Repeat Steps 1 through 3 in the Locked FM Mode Off test procedure above. Step 2.
  • Page 83 Performance Verification Residual FM Tests Step 7. Enter the reading from the modulation analyzer into the test record and verify that the measurement meets specification. Step 8. Repeat the measurement for each of the LO and DUT frequency pairs listed in the test record. The following procedure lets you measure residual Unlocked FM with the unlocked wide FM mode on (modula-...
  • Page 84 Frequency Modulation Tests Performance Verification 3-11 Frequency This section provides a manual procedure to verify the performance of the frequency and phase modulation of the MG369XA. Modulation Tests The RF Output of the MG369XA is modulated and monitored on a spectrum analyzer display.
  • Page 85 Performance Verification Frequency Modulation Tests FM Attenuator The following procedure lets you measure the FM attenuators of the modulation circuit. The values calculated in this procedure are used to verify the performance of the modulated RF output of the NOTES MG369XA.
  • Page 86 Frequency Modulation Tests Performance Verification Step 6. Locate the first Bessel null as follows: a. Increase the function generator’s amplitude in 100 mV increments until the carrier level on the NOTES spectrum analyzer’s display begins to drop, then When searching for a Bessel null using adjust the function generator in 10 mV incre- zero span on the spectrum analyzer, the ments (within a range of 1.8 to 2.2 V...
  • Page 87 Performance Verification Frequency Modulation Tests Step 12. Set the function generator to 83.2 kHz and 1.8 V Step 13. Locate the first Bessel null as follows: a. Increase the function generator’s amplitude in 100 mV increments until the carrier level begins to drop, then adjust the function generator in 10 mV increments (within a range of 1.8 to 2.2 V...
  • Page 88 Frequency Modulation Tests Performance Verification Step 19. On the MG369XA, set the FM sensitivity to 240 kHz/V. Step 20. Set the function generator to 99.7 kHz and 1.8 V Step 21. Find the first Bessel null as follows: a. Increase the function generator’s amplitude in 100 mV increments until the carrier level begins to drop, then adjust the function generator in 10 mV increments (within a range of 1.8 to...
  • Page 89 Performance Verification Frequency Modulation Tests Step 27. Calculate the following to four decimal places and record the results in the test record: NOTE æ ö ç ÷ If G , or G is <0.980 or >1.020, the 09877 ´ ç ÷...
  • Page 90 Frequency Modulation Tests Performance Verification FM VARIABLE ATTENUATOR Step 28. On the MG369XA, set the FM sensitivity to 240 kHz/V. Step 29. Set the function generator to 99.7 kHz and 1.8 V p-p. Step 30. Locate the first Bessel null as follows: a.
  • Page 91 Performance Verification Frequency Modulation Tests Step 36. On the MG369XA, set the FM sensitivity to 1.8 MHz/V. Step 37. Set the function generator to 50 mV Step 38. Locate the sixth Bessel null as follows: a. Increase function generator’s amplitude in 10 mV increments while observing the carrier level on the spectrum analyzer.
  • Page 92 Frequency Modulation Tests Performance Verification COMPOSITE FM ATTENUATOR ACCURACY Step 41. Calculate the following to four decimal places and NOTE record the results in the test record: If any of the GT through GT values ´ a re <0 .950 or >1.05 0, th e FM Attenuators need to repaired or cali- ´...
  • Page 93 Performance Verification Frequency Modulation Tests FM accuracy is verified at 5 GHz and 20 GHz in Locked FM both locked and locked low-noise modes of operation. Accuracy LOCKED EXTERNAL FM ACCURACY AT 5 GHz Step 1. Set up the test equipment as described on page 3-32. Step 2.
  • Page 94 Frequency Modulation Tests Performance Verification Step 7. Find the first Bessel null as follows: a. Increase the function generator’s amplitude in 10 mV increments (within a range of 1.8 to 2.2 V on the function generator display) such that the MG369XA carrier level is minimized. b.
  • Page 95 Performance Verification Frequency Modulation Tests LOCKED LOW-NOISE EXTERNAL FM ACCURACY AT 5 GHz Step 10. On the MG369XA, set Locked Low-Noise External FM mode on by pressing Mode>, then press Locked Low Noise. Step 11. Find the first Bessel null as follows: a.
  • Page 96 Frequency Modulation Tests Performance Verification LOCKED EXTERNAL FM ACCURACY AT 20 GHz Step 14. Set up the MG369XA as follows: a. Press to open the current frequency Frequency parameter for editing. b. Set the frequency to 20 GHz, then to 2.3 GHz, then back to 20 GHz.
  • Page 97 Performance Verification Frequency Modulation Tests LOCKED LOW-NOISE EXTERNAL FM ACCURACY AT 20 GHz Step 20. On the MG369XA, select Locked Low Noise. Step 21. Find the first Bessel null as follows: a. Adjust the function generator’s amplitude in 10 mV increments (within a range of 1.8 to 2.2 V on the function generator’s display) such that the MG369XA carrier level is minimized.
  • Page 98 Frequency Modulation Tests Performance Verification LOCKED INTERNAL FM ACCURACY AT 5 GHz (Options 12 and 23 or Option 25) Step 24. Disconnect the function generator from the MG369XA’s rear panel FM/FM IN connector. Step 25. Set up the MG369XA as follows: a.
  • Page 99 Performance Verification Frequency Modulation Tests LOCKED LOW-NOISE INTERNAL FM ACCURACY AT 5 GHz (Options 12 and 23 or Option 25) Step 31. On the MG369XA, press Mode> and select Locked Low Noise, then press <Previous. Step 32. Adjust the FM deviation in 1 kHz increments (within a range of 220 to 260 kHz) such that the carrier level is minimized on the spectrum analyzer display.
  • Page 100 Frequency Modulation Tests Performance Verification LOCKED INTERNAL FM ACCURACY AT 20 GHz (Options 12 and 23 or Option 25) Step 35. Set up the MG369XA as follows: a. Press and set the frequency to Frequency 20 GHz, then 2.3 GHz, then back to 20 GHz. b.
  • Page 101 Performance Verification Frequency Modulation Tests LOCKED LOW-NOISE INTERNAL FM ACCURACY AT 20 GHz (Options 12 and 23 or Option 25) Step 41. On the MG369XA, press Mode> and select Locked Low Noise, then press <Previous. Step 42. Adjust the FM deviation in 1 kHz increments (within a range of 220 to 260 kHz) such that the carrier level is minimized on the spectrum analyzer display.
  • Page 102 Frequency Modulation Tests Performance Verification FM accuracy is verified at 5 GHz and 20 GHz in un- FM Accuracy locked wide, unlocked narrow, locked, and locked low-noise for both external and internal modes of op- eration. WIDE EXTERNAL FM ACCURACY AT 5 GHz Step 1.
  • Page 103 Performance Verification Frequency Modulation Tests Step 6. On the MG369XA, press On/Off to turn the FM mode Step 7. Locate the first Bessel null as follows: a. Adjust the function generator’s amplitude in 10 mV increments (within a range of 1.8 to 2.2 V on the function generator’s display) such that the MG369XA carrier level is minimized on...
  • Page 104 Frequency Modulation Tests Performance Verification NARROW EXTERNAL FM ACCURACY AT 5 GHz Step 10. On the MG369XA, press Mode> and select Narrow, then press <Previous. Step 11. Locate the first Bessel null as follows: a. Adjust function generator’s amplitude in 10 mV increments (within a range of 1.8 to 2.2 V the function generator’s display) such that the MG369XA carrier level is minimized on the spec-...
  • Page 105 Performance Verification Frequency Modulation Tests WIDE EXTERNAL FM ACCURACY AT 20 GHz Step 14. Set up the MG369XA as follows: a. Press and set the frequency to 20 Frequency GHz, then 2.3 GHz, then back to 20 GHz. b. Press Modulation, then press Mode>. c.
  • Page 106 Frequency Modulation Tests Performance Verification NARROW EXTERNAL FM ACCURACY AT 20 GHz Step 20. On the MG369XA, press Mode> and select Narrow. Step 21. Locate the first Bessel null as follows: a. Adjust the function generator’s amplitude in 10 mV increments (within a range of 1.8 to 2.2 V on the function generator’s display) such that the MG369XA carrier level is minimized on...
  • Page 107 Performance Verification Frequency Modulation Tests WIDE INTERNAL FM ACCURACY AT 5 GHz (Options 12 and 23 or Option 25) Step 24. Disconnect the function generator from the MG369XA’s rear panel FM/FM IN connector. Step 25. Set up the MG369XA as follows: a.
  • Page 108 Frequency Modulation Tests Performance Verification NARROW INTERNAL FM ACCURACY AT 5 GHz (Options 12 and 23 or Option 25) Step 31. On the MG369XA, press Mode> and select Narrow, then press <Previous. Step 32. Find the first Bessel null by adjusting the FM deviation in 0.01 radian increments (within a range of 2.15 to 2.65 rad) such that the carrier level is minimized on the spectrum analyzer display.
  • Page 109 Performance Verification Frequency Modulation Tests WIDE INTERNAL FM ACCURACY AT 20 GHz (Options 12 and 23 or Option 25) Step 35. Set up the MG369XA as follows: a. Press and set the frequency to Frequency 20 GHz, then to 2.3 GHz, then back to 20 GHz. b.
  • Page 110 Frequency Modulation Tests Performance Verification NARROW INTERNAL FM ACCURACY AT 20 GHz (Options 12 and 23 or Option 25) Step 41. On the MG369XA, press Mode> and select Narrow, then press <Previous. Step 42. Find the first Bessel null by adjusting the FM deviation in 0.01 radian increments (within a range of 2.15 to 2.65 rad) such that the carrier level is minimized on the spectrum analyzer display.
  • Page 111 Performance Verification Frequency Modulation Tests The unlocked narrow FM accuracy procedure mea- Unlocked sures the FM accuracy in unlocked narrow FM Narrow FM mode. Accuracy Multimeter Power Supply 10 MHz REF OUT FM/ M IN 10 MHz REF IN Frequency Counter MG369XA Figure 3-9.
  • Page 112 Frequency Modulation Tests Performance Verification The following procedure lets you verify the external Test FM accuracy of the MG369XA’s RF output. Procedure Step 1. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset. Upon reset, the CW menu is displayed. b.

  • Page 113: Function Generator

    Performance Verification Frequency Modulation Tests The FM/FM flatness tests verify that the FM/FM MG369XA’s modulated RF output meets specifica- Flatness tion while in the locked FM mode and in the narrow and wide FM modes. Function Generator 10 MHz REF OUT FM/ M Spectrum Analyzer MG369XA (DUT)
  • Page 114 Frequency Modulation Tests Performance Verification Locked FM Flatness Step 1. Connect the equipment as shown in Figure 3-10. Step 2. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset. Upon reset, the CW menu is displayed. b.
  • Page 115 Performance Verification Frequency Modulation Tests Step 9. Calculate the equivalent power level and record the result as P in the test record as follows: null ´ Log V null null Step 10. Repeat Steps 7 through 9 for each of the function generator frequency and MG369XA FM sensitivity pairs listed in the test record.
  • Page 116 Frequency Modulation Tests Performance Verification Narrow FM Flatness Step 1. Connect the equipment as shown in Figure 3-10. Step 2. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset. Upon reset, the CW menu is displayed. b.
  • Page 117 Performance Verification Frequency Modulation Tests Step 7. Find the minimum carrier level on the spectrum analyzer by adjusting the function generator’s amplitude in 1 mV increments. Step 8. Record the function generator’s voltage setting in the test record as V null Step 9.
  • Page 118 Frequency Modulation Tests Performance Verification Wide FM Flatness Step 1. Connect the equipment as shown in Figure 3-10. Step 2. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset. Upon reset, the CW menu is displayed. b.
  • Page 119 Performance Verification Frequency Modulation Tests Step 7. Find the minimum carrier level on the spectrum analyzer by adjusting the function generator’s amplitude in 1 mV increments. Step 8. Record the function generator’s voltage setting in the test record as V null Step 9.
  • Page 120 Frequency Modulation Tests Performance Verification The FM/FM bandwidth tests verify that the FM/FM MG369XA’s modulated RF output meets specifica- Bandwidth tion while in the locked and locked low noise FM modes, and in the narrow FM mode. 10 MHz 10 MHz REF OUT REF IN FM/ M...
  • Page 121 Performance Verification Frequency Modulation Tests Locked FM Bandwidth Step 1. Connect the equipment as shown in Figure 3-11. Step 2. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset. Upon reset, the CW menu is displayed. b.
  • Page 122 Frequency Modulation Tests Performance Verification Step 5. 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 10 MHz. c.
  • Page 123 Performance Verification Frequency Modulation Tests Locked Low Noise FM Bandwidth Step 1. Connect the equipment as shown in Figure 3-11. Step 2. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset. Upon reset, the CW menu is displayed. b.
  • Page 124 Frequency Modulation Tests Performance Verification Step 5. 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 10 MHz. c.
  • Page 125 Performance Verification Frequency Modulation Tests Narrow FM Bandwidth Step 1. Connect the equipment as shown in Figure 3-11. Step 2. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset. Upon reset, the CW menu is displayed. b.
  • Page 126 Frequency Modulation Tests Performance Verification Step 5. 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 10 MHz. c.
  • Page 127 Performance Verification Frequency Modulation Tests Frequency modulation measurements are most accu- Alternate rate when made using the “carrier null” technique FM and FM and referencing the appropriate Bessel function. Accuracy However, acceptable results can be obtained by us- Tests ing modulation meters, such as the Agilent 8901A (or equivalent), if the proper techniques are used.
  • Page 128 Frequency Modulation Tests Performance Verification Locked FM Mode On The following procedure lets you measure FM accu- racy with the locked FM mode on (modulation cir- cuits active): Step 1. Set up the LO as follows: a. Reset the instrument by pressing SYSTEM, then Reset.
  • Page 129 Performance Verification Frequency Modulation Tests Step 6. Turn on external FM by pressing the On/Off key. NOTE Ensure that no connection is made to the rear panel FM input. Step 7. Enter the reading from the modulation analyzer into the test record as N. Step 8.
  • Page 130 Frequency Modulation Tests Performance Verification Locked Low-Noise FM Mode On The following procedure lets you measure FM accu- racy with the locked low-noise FM mode on (modula- tion circuits active): Step 1. Repeat Steps 1 through 8 in the Locked FM Mode On test procedure above.
  • Page 131 Performance Verification Frequency Modulation Tests Unlocked Narrow FM Mode On The following procedure lets you measure FM accu- racy with the unlocked narrow FM mode on (modu- lation circuits active): Step 1. Repeat Steps 1 through 8 in the Locked FM Mode On test procedure above.
  • Page 132 Frequency Modulation Tests Performance Verification Unlocked Narrow FM Mode On The following procedure lets you measure FM accu- racy with the unlocked narrow FM mode on (modu- lation circuits active): Step 1. Set up the LO as follows: a. Reset the instrument by pressing SYSTEM, then Reset.
  • Page 133 Performance Verification Frequency Modulation Tests Step 6. Turn on external FM by pressing the On/Off key. NOTE Ensure that no connection is made to the rear panel FM input. Step 7. Enter the reading from the modulation analyzer on the test record as N. Step 8.
  • Page 134 Frequency Modulation Tests Performance Verification Unlocked Wide FM Mode On The following procedure lets you measure FM accu- racy with the unlocked wide FM mode on (modula- tion circuits active): Step 1. Repeat Steps 1 through 8 in the Unlocked Narrow FM Mode On test procedure above.

  • Page 135: Amplitude Modulation Tests

    Performance Verification Amplitude Modulation Tests 3-12 Amplitude This procedure verifies the operation of the MG369XA amplitude mod- ulation input sensitivity circuits. The modulated RF output of the Modulation Tests MG369XA is down converted and the (modulated) IF is then measured with a modulation analyzer.
  • Page 136 Amplitude Modulation Tests Performance Verification The following procedure lets you measure the abso- External AM lute peak external AM values for a 50% AM signal Accuracy at 6 dB below maximum rated output power and cal- culate the modulation index. Step 1.
  • Page 137 Performance Verification Amplitude Modulation Tests Step 4. Set the multimeter to measure an AC signal by pressing V AC, then Auto. Step 5. Set up the function generator as follows: a. Press the (sine wave) key, then the Freq key and adjust the frequency to 1 kHz using the ro- tary knob.
  • Page 138 Amplitude Modulation Tests Performance Verification The following procedure (for instruments with Op- Internal AM tions 14 and 23 or Option 25 only) lets you measure Accuracy 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 139 Performance Verification Amplitude Modulation Tests Step 5. Disconnect the function generator from the MG369XA’s AM IN connector. Step 6. Set up the modulation analyzer as follows: a. Press the HP Filter 300 Hz key to set the high pass filter to 300 Hz. b.
  • Page 140 Amplitude Modulation Tests Performance Verification The following procedure lets you measure the AM AM Roll Off roll off of the external AM signal at 6 dB below max- imum rated output power. Step 1. Set up the equipment as shown in Figure 3-13. Step 2.
  • Page 141 Performance Verification Amplitude Modulation Tests Step 5. Set the multimeter to measure an AC signal by pressing V AC, then Auto. Step 6. Set up the function generator as follows: a. Press the (sine wave) key, then the Freq key and adjust the frequency to 1 kHz using the ro- tary knob.
  • Page 142 Amplitude Modulation Tests Performance Verification The following procedure lets you measure the AM AM Flatness flatness of the external AM signal at 6 dB below maximum rated output power from 10 Hz to 10 kHz rates. Step 1. Set up the equipment as shown in Figure 3-13. Step 2.
  • Page 143 Performance Verification Amplitude Modulation Tests Step 5. Set up the multimeter to measure an AC signal by pressing V AC, then Auto. Step 6. Set up the function generator as follows: a. Press the (sine wave) key, then the Freq key and adjust the frequency to 10 Hz using the ro- tary knob.
  • Page 144 Pulse Modulation Tests Performance Verification 3-13 Pulse Modulation The pulse modulation tests verify the operation of the pulse modula- tion circuits in the MG369XA. Rise time, fall time, overshoot, and Tests power accuracy of the pulsed RF output are verified using a high speed digital sampling oscilloscope.
  • Page 145 Performance Verification Pulse Modulation Tests Step 6. Set up the oscilloscope as follows: a. Press the Default Setup key. b. From the title bar, select: Measure | Math | Function 1 c. Set the operator to MAX and turn on the Function 1 display.
  • Page 146 The following procedure lets you measure the rise Rise Time, time, fall time, and overshoot of the MG369XA’s Fall Time and pulse modulated RF output. Overshoot Rise Time Step 1. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset.
  • Page 147 Performance Verification Pulse Modulation Tests Step 3. Set up the oscilloscope as follows: a. Select the Time/Delay button on the bottom of the display. b. Set the sweep time to 10 ns/div c. Press the Clear Display key. Allow the oscilloscope to sample the signal and wait for a clearly de- fined waveform to appear on the display.
  • Page 148 Pulse Modulation Tests Performance Verification Fall Time Step 5. Set up the oscilloscope as follows: a. Select the Time/Delay button on the bottom of the display. b. Set the delay time to 1 ms c. Press the Clear Display key. Allow the oscilloscope to sample the signal and wait for a clearly de- fined waveform to appear on the display.

  • Page 149: Pulse Power Accuracy

    Performance Verification Pulse Modulation Tests The following procedure lets you measure the pulse Pulse Power power accuracy of the MG369XA’s pulse modulated Accuracy RF Output. The accuracy is tested with a 1 mS and a 0.5 mS pulse width. Step 1. Set up the equipment as described on page 3-92. Step 2.
  • Page 150 Pulse Modulation Tests Performance Verification Step 4. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset. Upon reset, the CW menu is displayed. b. Press Edit F1 to open the current frequency pa- rameter for editing. c.
  • Page 151 Performance Verification Pulse Modulation Tests Step 7. Read the measured result on the display and record the result as V in the test record. Step 8. On the MG369XA, press On/Off to turn pulse modulation on. Step 9. Set up the oscilloscope as follows: a.
  • Page 152 Pulse Modulation Tests Performance Verification The following procedure lets you measure the pulse Pulse On/Off on/off ratio of the MG369XA’s pulse modulated RF Ratio output. M G 3 6 9 X A S p e c t r u m A n a l y z e r E X T R E .
  • Page 153 Performance Verification Pulse Modulation Tests Measure the pulse on/off ratio as follows: Test Procedure Step 1. Set up the MG369XA as follows: a. Reset the instrument by pressing SYSTEM, then Reset. Upon reset, the CW menu is displayed. b. Press Edit F1 to open the current frequency pa- rameter for editing.
  • Page 154 www.valuetronics.com...
  • Page 155 Chapter 4 Calibration Table of Contents Introduction ......4-3 Recommended Test Equipment ....4-3 Test Records .
  • Page 156 Table of Contents (Continued) 4-11 ALC Bandwidth Calibration ..... 4-23 Equipment Setup · · · · · · · · · · · · · · · · · · · · · · 4-23 Bandwidth Calibration ·...

  • Page 157: Introduction

    In some cases, the user may substitute test equipment having the same critical specifications as those on the recommended test equip- ment list. Contact your local Anritsu service center (refer to Table 6-4 on page 6-24) if you need clarification of any equipment or procedural ref- erence.

  • Page 158: Subassembly Replacement

    Resolution: 1 Hz Frequency: 10 MHz Frequency Reference Absolute Time Corp., Model 300 –12 Accuracy: 5 ´ 10 parts/day Anritsu Model 56100A, with Scalar Network RF Detector: Analyzer, with Frequency Range: 0.01 to 40 GHz 560-7K50 (0.01 to 40 GHz) RF Detector 560-7VA50 (0.01 to 50 GHz)
  • Page 159 Calibration Connector and Key Notation 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 4-7 thru 4-10 A3 Reference Loop PCB A4 Coarse Loop PCB A5 Auxiliary PCB None A6 ALC PCB 4-8, 4-9, 4-10...

  • Page 160: Initial Setup

    Standby MG369XA IBM-Compatible PC Figure 4-1. PC to MG369XA Interconnection for Calibration Using an Anritsu serial interface assembly Interconnection (P/N: T1678), connect the PC to the MG369XA as fol- lows: Step 1. Connect the wide flat cable between the MG369XA rear panel SERIAL I/O connector and the P1 connector on the T1678 serial interface PCB.

  • Page 161: Pc Setup

    Calibration Initial Setup PC Setup Configure the PC with the Windows operating sys- tem to interface with the MG369XA as follows: Step 1. Power up the MG369XA. NOTE HyperTerminal may also appear under Step 2. Power up the PC in the Windows operating system. the Communications menu located on teh Accessories menu.
  • Page 162 Initial Setup Calibration Step 5. Click on HyperTerminal (Hyperterm.exe) to bring up the New Connection window, below. Step 6. In the Connection Description box, type a name for the new connection, then click on the OK button. The window below is now displayed. Step 7.
  • Page 163 Calibration Initial Setup Step 8. Click OK. The Communications Port Properties window is displayed. Step 9. In the Properties window, make the following selections: Bits per second 19200 Data bits Parity None Stop bits Flow control Xon / Xoff Step 10. After making the selections, click on the OK button. Step 11.

  • Page 164: Preliminary Calibration

    Preliminary Calibration Calibration Preliminary This procedure provides the steps necessary to initially calibrate the coarse loop, fine loop, frequency instruction, internal DVM circuitry Calibration and the 10 MHz reference oscillator of the MG369XA. If Option 16 is installed, the 10 MHz reference oscillator is calibrated. I B M - C o m p a t i b l e P C .
  • Page 165 Calibration Preliminary Calibration Each of the steps in this procedure provides initial Calibration calibration of a specific MG369XA circuit or compo- Steps nent. To ensure accurate instrument calibration, each step of this procedure must be performed in se- quence. Step 1. Calibrate the internal DVM circuitry as follows: a.
  • Page 166 Preliminary Calibration Calibration . r e q u e n c y R e f e r e n c e 1 P P S E S C 1 . 5 M H z D E L M G 3 6 9 X A A B S O L U T E T I M E M O D E N T E R...
  • Page 167 Calibration Preliminary Calibration Step 7. Calibrate the sweep width DAC as follows: a. At the $ prompt, type: calterm 133 and press <ENTER>. The $ prompt will appear on the screen when the calibration is complete. b. Record step completion in the test record. Step 8.

  • Page 168: Alternate 10 Mhz

    Preliminary Calibration Calibration . r e q u e n c y R e f e r e n c e 1 P P S E S C 1 . 5 M H z D E L M G 3 6 9 X A A B S O L U T E T I M E M O D E N T E R...
  • Page 169 Calibration Preliminary Calibration g. Using the key pad, enter the current date (in any desired format). Then, press any terminator key. The Calibration Status menu display changes to indicate calibration is in progress. h. When the reference oscillator calibration is com- plete, the Calibration menu is displayed.

  • Page 170: Frequency Synthesis Tests

    Frequency Synthesis Tests Calibration Frequency Synthesis The following tests can be used to verify correct operation of the fre- quency synthesis circuits. frequency synthesis testing is divided into Tests two parts—coarse loop/YIG loop tests and fine loop tests. M G 3 6 9 X A .

  • Page 171: Fine Loop

    Calibration Frequency Synthesis Tests Step 2. Record the frequency counter reading in the test record. The frequency counter reading must be NOTE within ±100 Hz of the displayed MG369XA The frequency counter reading is frequency to accurately complete this test. typically within ±1 Hz because the instruments use a common time Step 3.

  • Page 172: Switched Filter Shaper

    Switched Filter Shaper Calibration Switched Filter This procedure provides the steps necessary to adjust the switched fil- ter shaper amplifier gain to produce a more constant level amplifier Shaper gain with power level changes. 5 6 1 0 0 A N e t w o r k A n a l y z e r I B M - C o m p a t i b l e P C M G 3 6 9 X A T 1 6 7 8...

  • Page 173: Log Amplifier Zero Calibration

    Calibration Switched Filter Shaper Before the switched filter shaper amplifier can be Log Amplifier adjusted, zero calibration of the ALC log amplifier Zero must be performed to eliminate any DC offsets. Per- Calibration form ALC log amplifier zero calibration as follows: Step 1.

  • Page 174: Limiter Dac Adjustment

    Switched Filter Shaper Calibration Step 2. Adjust the switched filter limiter DAC for each of the frequency bands as follows: a. At the $ prompt on the PC display, type: calterm 145 and press <ENTER>. b. On the 56100A network analyzer, set the resolu- Shaper tion to 0.2 dB and adjust the offset to center the Amplifier...

  • Page 175: Shaper Dac Adjustment

    Calibration Switched Filter Shaper The following step in the procedure adjusts the Shaper DAC switch filter shaper DAC which controls the gain of Adjustment the switched filter shaper amplifier. Each frequency band will be scanned for the minimum unleveled power point before automatic adjustment of the shaper DAC.

  • Page 176: Rf Level Calibration

    (P/N: 2300-497). The following test equipment is required for RF level calibration: Anritsu 2100-2 GPIB Interface Cable Assembly Anritsu Model 41KC-6 Fixed Attenuator (6 dB, DC to 40 GHz) Anritsu Model 41V-6 Fixed Attenuator (6 dB, DC to 60 GHz) Anritsu Model ML2530A Calibration Receiver...
  • Page 177 Calibration RF Level Calibration 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 MG369XA (DUT) RF Output RF Input Measuring Receiver Connect to DUT RF Output Rear Panel High/Low and...
  • Page 178 RF Level Calibration Calibration Step 5. Run the Level Calibration software and follow the on-screen prompts. 4-24 MG369XA MM www.valuetronics.com...

  • Page 179: Alc Bandwidth Calibration

    Calibration ALC Bandwidth Calibration 4-11 ALC Bandwidth This procedure provides the steps necessary to perform ALC Band- width calibration. The ALC Bandwidth is adjusted to compensate for Calibration gain variations of the modulator. The adjustment is performed for each frequency band. This provides a more consistent bandwidth through- out the frequency range of the instrument.
  • Page 180 ALC Bandwidth Calibration Calibration The following procedure lets you (1) calibrate the Bandwidth ALC bandwidth and (2) store the calibration data in Calibration non-volatile memory on the A2 CPU PCB. Step 1. Enter the ALC bandwidth calibration routine as follows: a.

  • Page 181: Alc Slope Calibration

    Calibration ALC Slope Calibration 4-12 ALC Slope This procedure provides the steps necessary to perform ALC Slope cal- ibration. The ALC Slope is calibrated to adjust for decreasing output Calibration power-vs-output frequency in full band analog sweep. (Option 6 Only) I B M - C o m p a t i b l e P C M G 3 6 9 X A S i g n a l G e n e r a t o r 5 6 1 0 0 A N e t w o r k A n a l y z e r...
  • Page 182 ALC Slope Calibration Calibration The following procedure lets you adjust the ALC ALC Slope Slope over individual frequency ranges to compen- sate for decreasing output power-vs-frequency in an- Adjustment alog sweep. The procedure begins by letting you adjust the ALC Slope for band 0 (0.01 to 2.0 GHz), if installed.
  • Page 183 Calibration ALC Slope Calibration 50. 60, or 40 GHz 2 GHz 8.4 GHz 20 GHz 65 (67) GHz Normalized Step Sweep ALC Slope Before Adjustment Figure 4-11. ALC Slope Adjustment Waveform Display Step 3. Make the following selections on the 56100A Network Analyzer to normalize the step sweep.
  • Page 184 ALC Slope Calibration Calibration 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 the nor- malized straight line in step sweep mode. When completed, press n for the next band.

  • Page 185: Equipment Setup

    Calibration AM Calibration 4-13 AM Calibration This procedure provides the steps necessary to perform AM calibra- tion. This consists of calibrating the AM Calibration DAC and the AM (Options 14 or 25X) Meter circuit. The AM Calibration DAC is calibrated for input sensi- tivities of 100%/V (linear mode) and 25 dB/V (logarithmic mode) for frequencies £2 GHz and >2 GHz (£2.2 GHz and >2.2 GHz for units with Option 4).

  • Page 186: Am Calibration Procedure

    AM Calibration Calibration The following procedure let you (1) adjust the AM Calibration DAC to provide the correct amount of Calibration AM in both linear (100%/V sensitivity) and log Procedure (25 dB/V sensitivity) modes of operation for frequen- cies of £2 GHz and >2 GHz, (2) calibrate the AM Me- ter circuit, and (3) store the results in non-volatile memory (EEPROM) on the A2 CPU PCB.
  • Page 187 Calibration AM Calibration Step 3. Perform Log AM calibration as follows: a. At the $ prompt, type: calterm 113 and press <ENTER>. b. Set the function generator for a ±0.20 volt output. CAUTION Use the COMPL button to toggle the output be- When saving calibration data, turning tween –0.20 volts and +0.20 volts.

  • Page 188: Fm Calibration

    FM Calibration Calibration 4-14 FM Calibration This procedure provides the steps necessary to perform FM calibra- tion. This consists of calibrating the FM Meter circuit and the FM (Option 12 or 25X) Gain Control DAC. The FM Gain Control DAC is calibrated for input sensitivities in both narrow and wide FM modes.

  • Page 189: Fm Calibration Procedure

    Calibration FM Calibration The following steps in the procedure lets you cali- brate the (1) FM Meter circuit, (2) FM Variable Gain Calibration Linerarity, (3) FM Narrow and Wide Mode Sensitiv- Procedure ity, and (4) FM Rear Panel Input Gain, and store the results in non-volatile memory (EEPROM) on the A2 CPU PCB.
  • Page 190 FM Calibration Calibration c. On the Spectrum Analyzer, set the Span/Div to 50 MHz per division. d. On the computer keyboard, use the `, 1, 2, and 3 keys to increment and the 7, 8, 9, and 0 keys to decrement the value of the DAC's setting.
  • Page 191 Calibration FM Calibration o. When finished setting the DAC, press Q on the keyboard to go to the next calibration step (ad- CENTER FREQUENCY justing the DAC to obtain 200 MHz deviation at 15 GHz). When the DAC has been completely adjusted, the program will exit to the $ prompt.
  • Page 192 FM Calibration Calibration Step 5. The FM Rear Panel Input Gain is calibrated to balance the FM Narrow Mode Sensitivity obtained when the same external modulating signal is applied to either the front panel or rear panel FM input. Perform the calibration as follows: a.
  • Page 193 Chapter 5 Troubleshooting Table of Contents Introduction ......5-3 Recommended Test Equipment ....5-3 Error Messages .
  • Page 194 Troubleshooting procedures presented in this chapter may require the removal of the instrument covers to gain access to test points on printed circuit boards and other subassemblies. WARNING Hazardous voltages are present inside the MG369XA when- ever ac line power is connected. Turn off the instrument and remove the line cord before removing any covers or panels.

  • Page 195: Introduction

    Chapter 5 Troubleshooting Introduction This chapter provides information for troubleshooting the MG369XA. The troubleshooting procedures presented in this chapter support fault isolation to a replaceable subassembly or RF component. Remove and replace procedures for the subassemblies and RF components are found in Chapter 6.
  • Page 196 Error Messages Troubleshooting Table 5-1. Self-Test Error Messages (1 of 3) Troubleshooting Page Error Message Table Number Error 100 Table 5-5. 5-16 DVM Ground Offset Failed Error 101 Table 5-5. 5-16 DVM Positive 10V Reference Error 102 Table 5-5. 5-16 DVM Negative 10V Reference Error 108 Table 5-6.
  • Page 197 Troubleshooting Error Messages Table 5-1. Self-Test Error Messages (2 of 3) Troubleshooting Page Error Message Table Number Error 125 8.4 – 20 GHz Unlocked and Table 5-13. 5-28 Unleveled Error 126 2 – 8.4 GHz Unlocked and Table 5-13. 5-28 Unleveled Error 127 Detector Input Circuit...
  • Page 198 Error Messages Troubleshooting Table 5-1. Self-Test Error Messages (3 of 3) Troubleshooting Page Error Message Table Number MG369XA Models with SDM Error 138 Table 5-18. 5-38 SDM Unit or Driver Failed Error 139 Table 5-19. 5-39 32 – 40 GHz SDM Section Failed Error 140 Table 5-19.

  • Page 199: Normal Operation Error And Warning/Status Messages

    Troubleshooting Error Messages When an abnormal condition is detected during op- Normal eration, the MG369XA displays an error message to Operation indicate that the output is abnormal or that a signal Error and input or data entry is invalid. It also displays warn- Warning/Status ing messages to alert you of conditions that could Messages...
  • Page 200 Error Messages Troubleshooting Table 5-3. Possible Error Messages during Normal Operations (2 of 2) Error Message Description Continued: (2) The external FM (or FM) modulating signal exceeds the input voltage range. In addition, the message “Reduce FM (or FM) Input Level” appears at the bottom of the FM (or FM) status display.
  • Page 201 Troubleshooting Error Messages Table 5-4. Possible Warning/Status Messages during Normal Operations Warning/Status Message Description This warning message indicates that the 100 MHz COLD 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 MG369XA.
  • Page 202 No Error Message Troubleshooting No Error Message The MG369XA must be operating to run self-test. Therefore, malfunc- tions that cause the instrument to be non-operational do not produce error messages. These problems are generally a failure of the MG369XA to power up properly. Table 5-4, beginning on page 5-13, provides troubleshooting procedures for these malfunctions.

  • Page 203: Troubleshooting Tables

    Troubleshooting Troubleshooting Tables COUPLER ATTENUATOR SWITCHED FILTER MODULE A9J1 A7J5 A6J3 A5J1 POWER SUPPLY ASSEMBLY VIEW OF A4 WITH OPTION 3 Figure 5-1a. Top View of the MG369XA Showing Connector and Test Point Locations MG369XA MM 5-11 www.valuetronics.com...
  • Page 204 Troubleshooting Tables Troubleshooting A1 MOTHERBOARD A4 MOUNTING SCREWS CPU-1 P4 A20 J5 A5 A1B1C1 J4 A4 J3 A3 J6 A6 P1 A21 J7 A7 CPU-2 J8 A8 J9 A9 GPIB A9 MOUNTING SCREWS P2 A14 A1B1C1 A4 MOUNTING SCREWS J10 A10 J11 A11 J13 A13 J12 A12-1...
  • Page 205 If no defect is found, go to Step 6. Replace the standby and main power supplies. Step 6. If the instrument powers up, the problem is cleared. If the instrument fails to power up, contact your local Anritsu service center for assistance. MG369XA MM 5-13...
  • Page 206 CPU malfunction. Replace the A2 PCB. Check for normal operation. Step 5. If the instrument powers up, the problem is cleared. If the instrument fails to power up, contact your local Anritsu service center for assistance. 5-14 MG369XA MM...
  • Page 207 Troubleshooting Troubleshooting Tables Table 5-4a. Power Supply Module Regulated Outputs A1P4 Regulator Output Related Source Pin # Standby Power Supply (13VS) Main Power Supply (26V) Main Power Supply (16V) Main Power Supply (6.75V) Main Power Supply (-16V) MG369XA MM 5-15 www.valuetronics.com...
  • Page 208 Troubleshooting Tables Troubleshooting Table 5-5. Error Messages 100, 101 and 102 (1 of 2) Internal DVM Tests Error 100 DVM Ground Offset Failed, or Error 101 DVM Positive 10V Reference, or Error 102 DVM Negative 10V Reference Description: The DVM circuitry, located on the A2 CPU PCB, is calibrated using the ±10 volts from the reference supplies on the A5 auxiliary PCB.
  • Page 209 Replace the A2 PCB, perform a manual pre-calibration and run Step 6. 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. MG369XA MM 5-17 www.valuetronics.com...
  • Page 210 Step 3. self-test. If error 108 is not displayed, the problem is cleared. If error 108 is displayed, contact your local Anritsu service cen- ter for assistance. Error 109 The 100 MHz Reference is not phase-locked to the External Reference Description: The reference loop is not phase-locked to the external 10 MHz reference.
  • Page 211 If error 110 is displayed, go to Step 2. Replace the A2 PCB. Step 2. If error 110 is not displayed, the problem is cleared. If error 110 is displayed, contact your local Anritsu service cen- ter for assistance. MG369XA MM 5-19...
  • Page 212 Troubleshooting Tables Troubleshooting Table 5-7. Error Messages 112, 149 and 152 (1 of 3) A4 Coarse Loop Error 112 Coarse Loop Osc Failed (models without Option 3) Description: The coarse loop oscillator is not phase-locked. Disconnect the MCX cable W151 at A4J1 and the MCX cable W154 Step 1.
  • Page 213 Reconnect the MCX cable W158 to A4J3 and run self-test again. Step 8. If error 112 is not displayed, the problem is cleared. If error 112 is still displayed, contact your local Anritsu service center for assistance. Error 112 Coarse Loop B Osc Failed (models with Option 3)
  • Page 214 Reconnect the MCX cable W157 to A4J2 and run self-test again. Step 8. 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. 5-22 MG369XA MM www.valuetronics.com...
  • Page 215 A7 YIG loop PCB. Run self-test. Step 8. 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. MG369XA MM 5-23 www.valuetronics.com...
  • Page 216 Troubleshooting Tables Troubleshooting Table 5-9. 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. Disconnect the MCX cable W152 at A3J5. Step 1.
  • Page 217 If error 116 is still displayed, go to Step 3. Replace the A7A1 PCB and run self-test again. Step 3. If error 116 is not displayed, the problem is cleared. If error 116 is displayed, contact your local Anritsu service cen- ter. MG369XA MM 5-25...
  • Page 218 Perform a preliminary calibration and run self-test again. Step 3. 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. 5-26 MG369XA MM www.valuetronics.com...
  • Page 219 If error 143 is still displayed, go to Step 4. Replace the A5 PCB and run self-test again. Step 4. If error 143 is not displayed, the problem is cleared. If error 143 is still displayed, contact your local Anritsu service center for assistance. MG369XA MM 5-27...
  • Page 220 Troubleshooting Tables Troubleshooting Table 5-13. Error Messages 124, 125 and 126 (1 of 2) 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 oscil- lator module.
  • Page 221 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 5-13a. YIG Module Assembly Bias Voltages Test Point YIG Module Power Supply Bias Voltages...
  • Page 222 Troubleshooting Tables Troubleshooting Table 5-14. Error Message 128 (1 of 3) 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.

  • Page 223: No Error Message

    Troubleshooting Troubleshooting Tables Error Message 128 (2 of 3) Unleveled with no/low output power: Set up the MG369XA as follows: Step 1. a. Frequency: Step Sweep b. F1: 0.010 GHz c. F2: 2.000 GHz (2.2 GHz with Option 4) d. More: Number of Steps: 400 e.
  • Page 224 Run self-test again. Step 9. 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. 5-32 MG369XA MM www.valuetronics.com...
  • Page 225 Troubleshooting Troubleshooting Tables Table 5-15. Error Message 129 (1 of 3) Error 129 Switched Filter or Level Detector Failed Description: Error 129 indicates a failure of either the switched filter or level detector circuitry. The MG369XA may or may not produce an RF output in the 2 to 20 GHz frequency range.
  • Page 226 Troubleshooting Tables Troubleshooting Error Message 129 (2 of 3) Unleveled with no/low output power: Set up the MG369XA as follows: Step 1. a. Frequency: Step Sweep c. F1: 2.000 GHz (2.21 GHz with Option 4) d. F2: 20.000 GHz e. More: Number of Steps: 400 Previous: L1: +1.00 dBm Level: ALC Mode: Leveling g.
  • Page 227 Troubleshooting Troubleshooting Tables Error Message 129 (3 of 3) Set up the 56100A scalar network analyzer as follows: Step 5. 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.
  • Page 228 Troubleshooting Tables Troubleshooting Table 5-16. 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 229 If error 135 is still displayed, go to Step 2. Replace the switched filter assembly and run self-test again. Step 2. If error 135 is not displayed, the problem is cleared. If error 135 is still displayed, contact your local Anritsu service center for assistance. MG369XA MM 5-37...
  • Page 230 Table 5-4 to determine if the power supply or regulator needs to be replaced. Run self-test. Step 5. If error 138 is not displayed, the problem is cleared. If error 138 is still displayed, contact your local Anritsu service center for assistance. 5-38 MG369XA MM www.valuetronics.com...
  • Page 231 Troubleshooting Troubleshooting Tables Table 5-19. 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.
  • Page 232 RF output was selected OFF on the front panel. Press the OUTPUT key on the front panel to turn the RF output Step 1. Run self-test again. If error 144 is still displayed, contact your local Step 2. Anritsu service center for assistance. 5-40 MG369XA MM www.valuetronics.com...
  • Page 233 100 ms at the rear panel AM OUT connector. If present, replace the A6A1 module. If not present, replace the A8 PCB. Run self-test again. If error 145 is still displayed, contact your local Step 3. Anritsu service center for assistance. MG369XA MM 5-41 www.valuetronics.com...
  • Page 234 10 ms at the rear panel FM OUT connector. If present, replace the A7A1 FM module. If not present, replace the A8 PCB. Run self-test again. If error 147 is still displayed, contact your local Step 3. Anritsu service center for assistance. 5-42 MG369XA MM www.valuetronics.com...
  • Page 235 Step 4. at A3J10. If present, replace the MCX cable. If not present, replace the A3 PCB. Run self-test again. If error 148 is still displayed, contact your local Step 5. Anritsu service center for assistance. MG369XA MM 5-43 www.valuetronics.com...
  • Page 236 Troubleshooting Tables Troubleshooting Table 5-24. Error Message 136 Output Power Related Problems (>40 GHz) MG369XA Models with SQM Error 136 SQM Unit or Driver Failed Description: Error 136 indicates a failure of the SQM or a failure of the SQM bias regulator or frequency band selection circuitry on the A6 PCB. The MG369XA will not produce an RF output above 40 GHz.
  • Page 237 If there is no RF signal or if the amplitude of the RF signal is low, replace the switched filter assembly. Run self-test again. If error 136 is still displayed, contact your local Step 7. Anritsu service center for assistance. MG369XA MM 5-45/5-46 www.valuetronics.com...
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  • Page 239 Power Supply Regulator PCB · · · · · · · · · · · · · · · · 6-22 6-10 Anritsu Customer Service Centers....6-24...
  • Page 240 www.valuetronics.com...

  • Page 241: Introduction

    Part numbers can be found in Table 6-1 and Table 6-2 on the following pages. Exchange Assembly Anritsu maintains an exchange assembly program for selected MG369XA subassemblies and RF components. If one of these subas- Program semblies malfunction , the defective unit can be exchanged. All ex-...
  • Page 242 Exchange Assembly Program R&R Procedures resentative or call your local Anritsu service center. Refer to Table 6-4, on page 6-24, for a list of current Anritsu service centers. Table 6-1 lists the replaceable PCB subassemblies, and Table 6-2 lists the RF components, of the MG369XA that are presently covered by the Anritsu exchange assembly program.
  • Page 243 R&R Procedures Exchange Assembly Program Table 6-1. Replaceable Subassemblies (2 of 2) For the MG369XA Series Signal Generators ANRITSU ASSEMBLY PCB SUBASSEMBLY OR PART Model or NUMBER PART NAME NUMBER Option List Front Panel Assembly 52349 Model ID: MG3691A 60124-6...
  • Page 244 Exchange Assembly Program R&R Procedures Table 6-2. Replaceable RF Components ANRITSU ASSEMBLY RF SUBASSEMBLY OR PART Model or NUMBER PART NAME NUMBER Option List MG369XA YIG Module (2 to 20 GHz) ND56503 CW Gen. MG3691A YIG Module (2 to 8.4 GHz) ND59717 CW Gen.
  • Page 245 R&R Procedures Exchange Assembly Program Table 6-3 lists the internal RF cables and part numbers for all of the various instrument configurations. Table 6-3. MG369XA Series Cable Part Number List (1 of 3) Cable Reference Connector Designator Part Number Type Connection Notes W150...
  • Page 246 Exchange Assembly Program R&R Procedures Table 6-3. MG369XA Series Cable Part Number List (2 of 3) Cable Reference Connector Designator Part Number Type Connection Notes W200 B37323-200 SWFJ5 to Sampler For CW Generators Only W201 B37323-201 YIG to SWFJ6 W202 B37323-202 SWFJ1 to DCJ3 For models with Option 5 only...
  • Page 247 R&R Procedures Exchange Assembly Program Table 6-3. MG369XA Series Cable Part Number List (3 of 3) Cable Reference Connector Designator Part Number Type Connection Notes W275 B37324-275 RP to Mixer For models with Option 7 SDM to SQM FWD W276 B37324-276 For models with Option 9V Coupler...

  • Page 248: Chassis Covers

    Chassis Covers R&R Procedures Chassis Covers Troubleshooting procedures require removal of the top and bottom covers. Replacement of some MG369XA assemblies and parts require removal of all covers. The following procedure describes this process. # 1 Phillips screwdriver Tool Required Disconnect the power cord from the unit.
  • Page 249 R&R Procedures Chassis Covers Turn the instrument over so that the bot- Step 5. tom cover is on top. Remove the screw that fastens the bottom Step 6. cover to the chassis. See Figure 6-2. Slide the bottom cover out along the Step 7.

  • Page 250: Front Panel Assembly

    Front Panel Assembly R&R Procedures Front Panel This paragraph provides instructions for removing and replacing the front panel assembly of the MG369XA. The front panel assembly con- Assembly tains the A1 front panel PCB. Refer to Figures 6-3 and Figure 6-4 during this procedure.

  • Page 251: A2 Microprocessor Pcb Board

    R&R Procedures A2 Microprocessor PCB Board A2 Microprocessor This paragraph provides instructions for removing and replacing the A2 microprocessor PCB which is located immediately behind the front PCB Board panel in a shielded card cage. See Figure 6-5. Figure 6-3. A2 Microprocessor PCB Removal Remove the front panel assembly as described in Preliminary Section 6-4.

  • Page 252: A3 Reference/Fine Loop Pcb

    A3 Reference/Fine Loop PCB R&R Procedures A3 Reference/Fine This paragraph provides instructions for removing and replacing the A3 reference/fine loop PCB, which is located in a shielded enclosure Loop PCB immediately behind the microprocessor board card cage. Remove the front handles, rear feet, and top cover as Preliminary described in Section 6-3.

  • Page 253: A4 Coarse Loop Pcb

    R&R Procedures A4 Coarse Loop PCB A4 Coarse Loop PCB This paragraph provides instructions for removing and replacing the A4 coarse loop PCB assembly, which is located immediately behind the A3 reference/fine loop PCB assembly. Remove the front handles, rear feet, and top cover Preliminary as described in Section 6-3.
  • Page 254 A4 Coarse Loop PCB R&R Procedures Remove and replace the A4 PCB assembly as follows: (models with Option 3) Carefully disconnect the coaxial cables Step 1. from the top connectors of the A4 PCB assembly. Turn the chassis upside down and locate Step 2.

  • Page 255: A5-A9 Pcb Removal

    R&R Procedures A5—A9 PCB Removal A5—A9 PCB Removal For access to the A5, A6, A7, A8, and A9 PCB assemblies the card cage cover must be removed first, as follows: Remove the front handles, rear feet, and top cover as Preliminary described in Section 6-3.

  • Page 256: A5 Auxiliary Pcb

    A5—A9 PCB Removal R&R Procedures COUPLER ATTENUATOR SWITCHED FILTER MODULE A9J1 A7J5 A6J3 A5J1 POWER SUPPLY ASSEMBLY VIEW OF A4 WITH OPTION 3 Figure 6-10. Locations of A5, A6, A7, A8, and A9 PCB Assemblies To remove the A5 auxiliary PCB, proceed as follows: A5 Auxiliary Grasp the A5 PCB by the edges and pull Step 1.

  • Page 257: A7 Yig Lock Pcb

    R&R Procedures A5—A9 PCB Removal To install the A6 ALC PCB, reverse the Step 3. removal process. To remove the A7 YIG lock PCB, proceed as follows: A7 YIG Lock Disconnect the miniature coax cable con- Step 1. nectors from the top edge of the A7 PCB. Disconnect the hard coax cable line from Step 2.

  • Page 258: Power Supply Assembly

    Power Supply Assembly R&R Procedures Power Supply This section provides instructions for removing and replacing the power supply assembly, which is located in a shielded enclosure at the Assembly left rear of the unit. It is necessary to first remove the card cage cover Preliminary and instrument side cover, as described in Section 6-8.
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  • Page 260 Power Supply Assembly R&R Procedures To remove and replace the lower power supply sub- Power Supply assembly from the bottom of the power supply enclo- Regulator sure, proceed as follows: If not done previously, remove the upper Step 1. power supply top assembly and 12 volt power supply PCB (previous procedures).

  • Page 261: Power Supply Regulator Pcb

    R&R Procedures Power Supply Assembly See Detail A Power Supply Power Supply Standby Supply regulator PCB 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 Brown Blue Green AC Line Supply/Switch...
  • Page 262 Anritsu Customer Service Centers R&R Procedures 6-10 Anritsu Customer Table 6-4, below, lists the contact information for Anritsu service cen- ters around the world. Service Centers Table 6-4. Anritsu Service Centers UNITED STATES FRANCE JAPAN ANRITSU COMPANY ANRITSU S.A ANRITSU CUSTOMER SERVICES LTD.

  • Page 263: 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 proce- dures (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 MG369XA Synthesized Signal Generators.
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  • Page 265 Appendix A Test Records Anritsu Model MG369_A with Options: __________________ Date: __________________________ Serial Number: _________________ Tested By: __________________________ Internal Time Base Aging Rate Test: All MG369XA Models Measured Value Upper Limit Measurement Uncertainty Frequency Error Value _______________ Frequency Error Value (after 24 hours) _______________ –9...
  • Page 266 Test Records Appendix A Spurious Signals Test: All MG369XA Models without Option 15 (1 of 2) Frequencies: 0.1 Hz to 10 MHz (Models with Option 22 Only) Harmonic Related Non-harmonic Measurement Test Frequency Measured Value Upper Limit Upper Limit Uncertainty (kHz) Spur Frequency (dBc)
  • Page 267 Appendix A Test Records Spurious Signals Test: All MG369XA Models without Option 15 (2 of 2) Frequencies: >50 MHz to £2 GHz (Models with Option 5 Only) Harmonic Related Non-harmonic Measurement Test Frequency Measured Value Upper Limit Upper Limit Uncertainty (MHz) Spur Frequency (dBc)
  • Page 268 Test Records Appendix A Spurious Signals Test: All MG369XA Models with Option 15 (1 of 2) Frequencies: 0.1 Hz to 10 MHz (Models with Option 22 Only) Harmonic Related Non-harmonic Measurement Test Frequency Measured Value Upper Limit Upper Limit Uncertainty (kHz) Spur Frequency (dBc)
  • Page 269 Appendix A Test Records Spurious Signals Test: All MG369XA Models with Option 15 (2 of 2) Frequencies: >50 MHz to £2 GHz (Models with Option 5 Only) Harmonic Related Non-harmonic Measurement Test Frequency Measured Value Upper Limit Upper Limit Uncertainty (MHz) Spur Frequency (dBc)
  • Page 270 Test Records Appendix A Single Sideband Phase Noise Test: All MG369XA Models without Option 3 (1 of 3) Test Frequency: 9.99 MHz (Models with Option 22 Only) Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) 100 Hz __________ –90 1 kHz...
  • Page 271 Appendix A Test Records Single Sideband Phase Noise Test: MG369XA Models without Option 3 (2 of 3) Test Frequencies: 1.99 GHz (Models with Option 5 Only) Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) 100 Hz __________ –77 1 kHz __________...
  • Page 272 Test Records Appendix A Single Sideband Phase Noise Test: MG369XA Models without Option 3 (3 of 3) Test Frequency: 19.99 GHz Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) 100 Hz __________ –66 1 kHz __________ –78 10 kHz __________ –77...
  • Page 273 Appendix A Test Records Single Sideband Phase Noise Test: All MG369XA Models with Option 3 (1 of 4) Test Frequency: 9.999999 MHz (Models with Option 22 Only) Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) 10 Hz __________ –60 100 Hz...
  • Page 274 Test Records Appendix A Single Sideband Phase Noise Test: All MG369XA Models with Option 3 (2 of 4) Test Frequency: 120 MHz (Models with Option 4 Only) Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) 10 Hz __________ –84 100 Hz...
  • Page 275 Appendix A Test Records Single Sideband Phase Noise Test: All MG369XA Models with Option 3 (3 of 4) Test Frequencies: 1.99 GHz (Models with Option 5 Only) Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) 10 Hz __________ –64 100 Hz...
  • Page 276 Test Records Appendix A Single Sideband Phase Noise Test: All MG369XA Models with Option 3 (4 of 4) Test Frequency: 10.0 GHz (8 GHz for MG3691A) Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) 10 Hz __________ –52 100 Hz __________...
  • Page 277 Appendix A Test Records Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions All MG369XA Models (1 of 3) Test Frequency: 15 MHz (Models with Option 4 Only) Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) <300 Hz __________...
  • Page 278 Test Records Appendix A Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions All MG369XA Models (2 of 3) Test Frequency: 499 MHz (Models with Option 4 Only) Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) <300 Hz __________...
  • Page 279 Appendix A Test Records Single Sideband Phase Noise Test: Power Line and Fan Rotation Emissions All MG369XA Models (3 of 3) Test Frequency: 6.0 GHz Measured Value Upper Limit Measurement Uncertainty Frequency Offset (dBc) (dBc) (dB) <300 Hz __________ –46 300 Hz to 1 kHz __________ –56...
  • Page 280 Test Records Appendix A Power Level Log Conformity Test: All MG369XA Models (1 of 2) Set F1 to Set F1 to 2.199 GHz (Option 4) or 2.201 GHz (Option 4) or 1.999 GHz (Option 5) Only 2.001 GHz (All Others) Measured Measured Power...
  • Page 281 Appendix A Test Records Power Level Log Conformity Test: All MG369XA Models Without Option 15 (2 of 2) Set F1 to Set F1 to 2.199 GHz (Option 4) or 2.201 GHz (Option 4) or 1.999 GHz (Option 5) Only 2.001 GHz (All Others) Measured Measured Power...
  • Page 282 Test Records Appendix A Power Level Accuracy Test: All MG369XA Models Without Option 2 (1 of 6) Instrument Setup DUT F1: 9.999 MHz DUT F1: 15 MHz DUT F1: 60 MHz Measurement Measured Power Measured Power Measured Power Specification Uncertainty Set L1* to: (dBm) (dBm)
  • Page 283 Appendix A Test Records Power Level Accuracy Test: All MG369XA Models Without Option 2 (2 of 6) Instrument Setup DUT F1: 2.01 GHz** DUT F1: 2.19 GHz** DUT F1: 2.21 GHz Measurement Measured Power Measured Power Measured Power Specification Uncertainty Set L1* to: (dBm) (dBm)
  • Page 284 Test Records Appendix A Power Level Accuracy Test: All MG369XA Models Without Option 2 (3 of 6) Instrument Setup DUT F1: 5.49 GHz DUT F1: 5.51 GHz DUT F1: 6.95 GHz Measurement Measured Power Measured Power Measured Power Specification Uncertainty Set L1* to: (dBm) (dBm)
  • Page 285 Appendix A Test Records Power Level Accuracy Test: All MG369XA Models Without Option 2 (4 of 6) Instrument Setup DUT F1: 13.24 GHz DUT F1: 13.26 GHz DUT F1: 16.625 GHz Measurement Measured Power Measured Power Measured Power Specification Uncertainty Set L1* to: (dBm) (dBm)
  • Page 286 Test Records Appendix A Power Level Accuracy Test: All MG369XA Models Without Option 2 (5 of 6) Instrument Setup DUT F1: 24.99 GHz DUT F1: 25.01 GHz DUT F1: 27.50 GHz Measurement Measured Power Measured Power Measured Power Specification Uncertainty Set L1* to: (dBm) (dBm)
  • Page 287 Appendix A Test Records Power Level Accuracy Test: All MG369XA Models Without Option 2 (6 of 6) Instrument Setup DUT F1: 39.99 GHz DUT F1: 40.01 GHz DUT F1: 50.0 GHz Measurement Measured Power Measured Power Measured Power Specification Uncertainty Set L1* to: (dBm) (dBm)
  • Page 288 Test Records Appendix A Power Level Accuracy Test: All MG369XA Models With Option 2 (1 of 10) DUT F1: 10 MHz DUT F1: 15 MHz DUT F1: 60 MHz Instrument Receiver: 10 MHz Receiver: 15 MHz Receiver: 60 MHz Setup LO: N/A LO: N/A LO: N/A...
  • Page 289 Appendix A Test Records Power Level Accuracy Test: All MG369XA Models With Option 2 (2 of 10) DUT F1: 499 MHz DUT F1: 600 MHz DUT F1: 1.99 GHz Instrument Receiver: 499 MHz Receiver: 600 MHz Receiver: 8.51 MHz Setup LO: N/A LO: N/A LO: 1981.49 MHz...
  • Page 290 Test Records Appendix A Power Level Accuracy Test: All MG369XA Models With Option 2 (3 of 10) DUT F1: 2.01 GHz DUT F1: 2.19 GHz DUT F1: 2.21 GHz Instrument Receiver: 8.51 MHz Receiver: 8.51 MHz Receiver: 8.51 MHz Setup LO: 2001.49 MHz LO: 2181.49 MHz LO: 2201.49 MHz...
  • Page 291 Appendix A Test Records Power Level Accuracy Test: All MG369XA Models With Option 2 (4 of 10) DUT F1: 3.29 GHz DUT F1: 3.31 GHz DUT F1: 4.40 GHz Instrument Receiver: 8.51 MHz Receiver: 8.51 MHz Receiver: 8.51 MHz Setup LO: 2201.49 MHz LO: 2201.49 MHz LO: 2201.49 MHz...
  • Page 292 Test Records Appendix A Power Level Accuracy Test: All MG369XA Models With Option 2 (5 of 10) DUT F1: 5.49 GHz DUT F1: 5.51 GHz DUT F1: 6.95 GHz Instrument Receiver: 8.51 MHz Receiver: 8.51 MHz Receiver: 8.51 MHz Setup LO: 5481.49 MHz LO: 5501.49 MHz LO: 6941.49 MHz...
  • Page 293 Appendix A Test Records Power Level Accuracy Test: All MG369XA Models With Option 2 (6 of 10) DUT F1: 8.39 GHz DUT F1: 8.41 GHz DUT F1: 10.825 GHz Instrument Receiver: 8.51 MHz Receiver: 8.51 MHz Receiver: 8.51 MHz Setup LO: 8381.49 MHz LO: 8401.49 MHz LO: 10816.49 MHz...
  • Page 294 Test Records Appendix A Power Level Accuracy Test: All MG369XA Models With Option 2 (7 of 10) DUT F1: 13.24 GHz DUT F1: 13.26 GHz DUT F1: 16.625 GHz Instrument Receiver: 8.51 MHz Receiver: 8.51 MHz Receiver: 8.51 MHz Setup LO: 13231.49 MHz LO: 13251.49 MHz LO: 16616.49 MHz...
  • Page 295 Appendix A Test Records Power Level Accuracy Test: All MG369XA Models With Option 2 (8 of 10) DUT F1: 19.99 GHz DUT F1: 20.01 GHz DUT F1: 22.50 GHz Instrument Receiver: 8.51 MHz Receiver: 8.51 MHz Receiver: 8.51 MHz Setup LO: 19981.49 MHz LO: 20001.49 MHz LO: 22491.49 MHz...
  • Page 296 Test Records Appendix A Power Level Accuracy Test: All MG369XA Models With Option 2 (9 of 10) DUT F1: 25.01 GHz DUT F1: 31.99 GHz DUT F1: 32.01 GHz Instrument Receiver: 8.51 MHz Receiver: 8.51 MHz Receiver: 8.51 MHz Setup LO: 25001.49 MHz LO: 31981.49 MHz LO: 32001.49 MHz...
  • Page 297 Appendix A Test Records Power Level Accuracy Test: All MG369XA Models With Option 2 (10 of 10) DUT F1: 39.99 GHz DUT F1: 40008.51 MHz DUT F1: 50.0 GHz Instrument Receiver: 8.51 MHz Receiver: 8.51 MHz Receiver: N/A Setup LO: 39981.49 MHz LO: 40000.00 MHz LO: N/A Measurement...
  • Page 298 Test Records Appendix A Power Level Flatness Test: All MG369XA Models Without Option 2 MG3691A and MG3692A Variation Variation Measurement Set L1 to: Maximum Power Minimum Power (Max – Min) Specification Uncertainty +13 dBm* (dBm) (dBm) (dB) (dB) (dB) Manual Sweep __________ __________...
  • Page 299 Appendix A Test Records Power Level Flatness Test: All MG369XA Models With Option 2 MG3691A and MG3692A Variation Variation Measurement Set L1 to: Maximum Power Minimum Power (Max – Min) Specification Uncertainty +11 dBm* (dBm) (dBm) (dB) (dB) (dB) Manual 1.60 Sweep __________...
  • Page 300 Test Records Appendix A Maximum Leveled Power Test: All MG369XA Models Without Options 2 and 15 MG3691A and MG3692A Minimum Power (dBm) Minimum Measurement £2.0 GHz W/Option 5 Specification Power (dBm) Specification Uncertainty Set L1 to: £2.2 GHz W/Option 4 (dBm) £20 GHz (dBm)
  • Page 301 Appendix A Test Records Maximum Leveled Power Test: All MG369XA Models With Option 2 and Without Option 15 MG3691A and MG3692A Minimum Power (dBm) Minimum Measurement £2.0 GHz W/Option 5 Specification Power (dBm) Specification Uncertainty Set L1 to: £2.2 GHz W/Option 4 (dBm) £20 GHz (dBm)
  • Page 302 Test Records Appendix A Maximum Leveled Power Test: All MG369XA Models With Option 15 and Without Option 2 MG3691A and MG3692A Minimum Power (dBm) Minimum Measurement £2.0 GHz W/Option 5 Specification Power (dBm) Specification Uncertainty Set L1 to: £2.2 GHz W/Option 4 (dBm) £20 GHz (dBm)
  • Page 303 Appendix A Test Records Maximum Leveled Power Test: All MG369XA Models With Options 2 and 15 MG3691A and MG3692A Minimum Power (dBm) Minimum Measurement £2.0 GHz W/Option 5 Specification Power (dBm) Specification Uncertainty Set L1 to: £2.2 GHz W/Option 4 (dBm) £20 GHz (dBm)
  • Page 304 Test Records Appendix A 3-10 Residual FM Test: All MG369XA Models with Options 3 and 4 (1 of 2) Locked FM Mode Off Modulation Analyzer Upper Limit Measurement DUT Frequency LO Frequency Reading (Specification) Uncertainty (GHz) (GHz) (kHz) (Hz RMS) (±Hz) __________ __________...
  • Page 305 Appendix A Test Records 3-10 Residual FM Test: All Models with Options 3 and 4 (2 of 2) Unlocked Narrow FM Mode On Modulation Analyzer Upper Limit Measurement DUT Frequency LO Frequency Reading (Specification) Uncertainty (GHz) (GHz) (kHz) (kHz RMS) (±Hz) __________ __________...
  • Page 306 Test Records Appendix A 3-10 Residual FM Test: All Models without Options 3 and 4 (1 of 2) Locked FM Mode Off Modulation Analyzer Upper Limit Measurement DUT Frequency LO Frequency Reading (Specification) Uncertainty (GHz) (GHz) (kHz) (Hz RMS) (±Hz) __________ __________ __________...
  • Page 307 Appendix A Test Records 3-10 Residual FM Test: All Models without Options 3 and 4 (2 of 2) Unlocked Narrow FM Mode On Modulation Analyzer Upper Limit Measurement DUT Frequency LO Frequency Reading (Specification) Uncertainty (GHz) (GHz) (kHz) (kHz RMS) (±Hz) __________ __________...
  • Page 308 Test Records Appendix A 3-11 Frequency Modulation Test: All MG369XA Models with Option 12 or 25 (1 of 7) FM Step Attenuator and FM Variable Attenuator FM Attenuator Accuracy FM Attenuator Accuracy Measurement Voltage Measurement Calculation Specification Uncertainty 0.980 to 1.020 0.01 = __________ = __________...
  • Page 309 Appendix A Test Records 3-11 Frequency Modulation Test: All MG369XA Models with Option 12 or 25 (2 of 7) Locked External FM Accuracy at 5 GHz Measurement Test Results Specification Uncertainty 0.6364 to 0.7778 V 0.01 V = __________ null 1.6% % = __________ error...
  • Page 310 Test Records Appendix A 3-11 Frequency Modulation Test: All MG369XA Models with Option 12 or 25 (3 of 7) Locked Internal FM Accuracy at 5 GHz Measurement Test Results Specification Uncertainty 220 to 260 kHz 3 kHz = __________ null 0.7% % = __________ error...
  • Page 311 Appendix A Test Records 3-11 Frequency Modulation Test: All MG369XA Models with Option 12 or 25 (4 of 7) Wide External FM Accuracy at 5 GHz Measurement Test Results Specification Uncertainty 0.6364 to 0.7778 V 0.01 V = __________ null 1.6% % = __________ error...
  • Page 312 Test Records Appendix A 3-11 Frequency Modulation Test: All MG369XA Models with Option 12 or 25 (5 of 7) Wide Internal FM Accuracy at 5 GHz Measurement Test Results Specification Uncertainty 2.15 to 2.65 rad 0.03 rad = __________ null 0.66% % = __________ error...
  • Page 313 Appendix A Test Records 3-11 Frequency Modulation Test: All MG369XA Models with Option 12 or 25 (6 of 7) Locked External FM Flatness Function Measurement Generator MG369XA Specification Uncertainty null null flat Frequency FM Sensitivity (dBm) (dB) (dB) (dB) 10 kHz 24.05 kHz/V __________ __________...
  • Page 314 Test Records Appendix A 3-11 Frequency Modulation Test: All MG369XA Models with Option 12 or 25 (7 of 7) Locked FM Bandwidth Function Measurement Specification Generator MG369XA Uncertainty Frequency FM Sensitivity 10 MHz 20 MHz/V __________ <0.401 0.015 Locked Low Noise FM Bandwidth Function Measurement Specification...
  • Page 315 Appendix A Test Records 3-11 Alternate Frequency Modulation Accuracy Test: All MG369XA Models with Option 23 or 25 (1 of 3) FM Accuracy, Locked Mode On Actual Modulation Modulation Frequency Analyzer Analyzer Deviation Measurement DUT Frequency LO Frequency Reading N Reading S + N Limits Uncertainty...
  • Page 316 Test Records Appendix A 3-11 Alternate Frequency Modulation Accuracy Test: All MG369XA Models with Option 23 or 25 (2 of 3) FM Accuracy, Unlocked Narrow Mode On Actual Modulation Modulation Frequency Analyzer Analyzer Deviation Measurement DUT Frequency LO Frequency Reading N Reading S + N Limits Uncertainty...
  • Page 317 Appendix A Test Records 3-11 Alternate Phase Modulation Accuracy Test: All MG369XA Models with Option 23 or 25 (3 of 3) FM Accuracy, Unlocked Narrow Mode On Modulation Modulation Actual Phase Analyzer Analyzer Deviation Measurement DUT Frequency LO Frequency Reading N Reading S + N Limits Uncertainty...
  • Page 318 Test Records Appendix A 3-12 Amplitude Modulation Test: All MG369XA Models with Option 14 or 25 (1 of 3) External AM Accuracy vs. Frequency at 50% Modulation Measurement DUT Frequency LO Frequency Specification Uncertainty (GHz) (GHz) (±%) 1.0 ±1 Digit __________ 45 to 55 __________...
  • Page 319 Appendix A Test Records 3-12 Amplitude Modulation Test: All MG369XA Models with Option 14 or 25 (2 of 3) AM Roll Off at 50 kHz Bandwidth Multimeter Multimeter Calculated Measurement DUT Frequency LO Frequency Reading Reading Specification Uncertainty (GHz) (GHz) (Volts) (Volts) (dB)
  • Page 320 Test Records Appendix A 3-12 Amplitude Modulation Test: All MG369XA Models with Option 14 or 25 (3 of 3) AM Flatness Spec. flat (GHz) (GHz) (dB) (dB) (dB) _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ 0.02 _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ _____ 0.02...
  • Page 321 Appendix A Test Records 3-13 Pulse Modulation Test: All MG369XA Models with Option 13 or 24 (1 of 3) Pulse Rise and Fall Times Measurement DUT Frequency Rise Time Fall Time Specification Uncertainty (GHz) (ns) (ns) (ns) (± ns) __________ __________ 0.023 15 (Option 4)
  • Page 322 Test Records Appendix A 3-13 Pulse Modulation Test: All MG369XA Models with Option 13 or 24 (2 of 3) Pulse Power Accuracy (Pulse Width ³1 ms) Measurement DUT Frequency Specification Uncertainty pulse accuracy (GHz) (Volts) (Volts) (dB) (dB) (dB) ±0.5 0.05 __________ __________...
  • Page 323 Appendix A Test Records 3-13 Pulse Modulation Test: All MG369XA Models with Option 13 or 24 (3 of 3) Pulse On/Off Ratio DUT Frequency Specification Measurement Uncertainty depth (GHz) (dB) (dB) (dB) 0.01 __________ –80 __________ –80 __________ –80 __________ –80 __________ –80...
  • Page 324 Test Records Appendix A Anritsu Model MG369_A Date: __________________________ Serial Number __________________ Tested By: __________________________ 4-7 Preliminary Calibration Step Completion Procedure Step Internal DVM Calibration (calterm119) ..... . .
  • Page 325 Store the Calibration Data ......______________ 4-9 RF Level Calibration This calibration is performed using an automatic test system. Contact Anritsu Customer Service for further information. 4-10 ALC Bandwidth Calibration Step Completion...
  • Page 326 www.valuetronics.com...

  • Page 327: Appendix B Performance Specifications

    Appendix B Performance Specifications MG369XA Technical Data Sheet MG369XA Data Sheet, part number 11410-00327. MG369XA MM B-1/B-2 www.valuetronics.com...
  • Page 328 www.valuetronics.com...
  • Page 329 Technical Datasheet MG3690A RF/Microwave Signal Generators 0.1 Hz to 65 GHz/110 GHz MG 3690 A the ideal signal generator www.valuetronics.com...
  • Page 330 Specifications Frequency Coverage: User-selectable linear or log sweep. Linear/Log Sweep: In log sweep, step size logarithmically increases with frequency. Model/Option No. Frequency Coverage Output Type User-selectable number of steps or the step size. Steps: MG3691A 2 to 8.4 GHz K(f) Variable from 1 to 10,000 Number of Steps: MG3692A...
  • Page 331 The instrument responds to the published GPIB Emulations: Returns all instrument parameters to predefined default Reset: commands and responses of the Anritsu Models 6600, 6700, states or values. Any pending GPIB I/O is aborted. Selectable from and 6XX00-series signal sources. When emulating another the system menu.
  • Page 332 Spectral Purity All specifications apply at the lesser of +10 dBm output or maximum specified leveled output power, unless otherwise noted. Spurious Signals Harmonic and Harmonic Related: Power Line and Fan Rotation Spurious Emissions (dBc): O f f s e t f r o m C a r r i e r Frequency Range Standard Frequency Range...
  • Page 333 Single-Sideband Phase Noise Single-Sideband Phase Noise (dBc/Hz): O f f s e t f r o m C a r r i e r Frequency Range 100 Hz 1 kHz 10 kHz 100 kHz ≥0.1 Hz to <10 MHz (Option 22) –90 –120 –130...
  • Page 334 RF Output Power level specifications apply at 25 ±10˚C. Maximum Leveled Output Power**: Output Power Output Power Model Number Configuration Frequency Range Output Power With Step With Electronic (GHz) (dBm) Attenuator (dBm) Step Attenuator (dBm) ≤2.2 GHz w/opt 4 +17.0 +15.0 +13.0 ≤2 GHz...
  • Page 335 A power level step occurs after each frequency sweep. Power level remains constant for the length of time required to complete each sweep. Internal Power Monitor (Option 8) Compatible with Anritsu 560-7, 5400-71, or 6400-71 Sensors: series detectors. Rear panel input. +16 dBm to –35 dBm Range: ±1 dBm, (+16 to –10 dBm)
  • Page 336 Modulation Frequency Generator Multiplication/Division Ratios: Frequency/Phase Modulation (Option 12) Frequency Range Divide Ratio, n Option 12 adds frequency and phase modulation, driven externally via a rear panel BNC connector, 50 . For internal modulation, add Ω <10 MHz (Option 22) modulation not available LF Generator Option 23.
  • Page 337 Amplitude Modulation (Option 14) Frequency Rise & Fall Pulse Width Video All amplitude modulation specifications apply at 50% depth, 1 kHz Range Time Overshoot Compression Feedthrough (10% to 90%) rate, with RF level set 6 dB below maximum specified leveled output power, unless otherwise noted.
  • Page 338 IQ-modulated signal. Lower frequency leveling loop but before the optional step alternator. It is switched IQ-modulated RF sources are readily available, such as the Anritsu in and out of the RF path. Scan modulation is driven externally MG3681A. Option 7’s IF input can be used to feed in an IQ- only.
  • Page 339 mmW Frequency Coverage Millimeter Wave Multipliers (54000 Series plus Option 18) External multipliers can be added to the MG3690A to provide coverage as high as 110 GHz. Please call us for solutions beyond 110 GHz. The 54000 series multipliers provide 50 to 75 GHz coverage in WR15 or 75 to 110 GHz in WR10.
  • Page 340 Inputs and Outputs I n p u t / O u t p u t C o n n e c t o r s Nomenclature Type** Location EXT ALC IN Rear Panel K Connector (female) fmax ≤40 GHz Standard-Front Panel RF OUTPUT (Option 9) V Connector (female) fmax ≥40 GHz...
  • Page 341 RF Output specifications. with another synthesizer or allows for a single- AM IN cable interface with the Model 56100A Scalar Network Analyzer and other Anritsu Accepts an external signal to amplitude RF OUTPUT modulate the RF output signal, Option 14.
  • Page 342 Ordering Information Models MG3691A 2 – 8.4 GHz Signal Generator MG3692A 2 – 20 GHz Signal Generator MG3693A 2 – 30 GHz Signal Generator MG3694A 2 – 40 GHz Signal Generator MG3695A 2 – 50 GHz Signal Generator MG3696A 2 – 65 GHz Signal Generator Options and Accessories MG3690A/1A Rack Mount with slides –...
  • Page 343 Aux I/O Cable, 25 pin to BNC: Provides BNC access to Aux I/O Data Lines: Sequential Sync, Marker Out, Bandswitch Blanking, Retrace Blanking, Sweep Dwell In, V/GHz, Horizontal Out. Upgrades Economical upgrades are available to upgrade any model to any higher performing model. Consult Anritsu for details. www.valuetronics.com...
  • Page 344 490 Jarvis Drive, Morgan Hill, CA 95037-2809 South America 55 (21) 2527-6922 Asia-Pacific (65) 6282-2400 http://www.us.anritsu.com Discover What’s Possible ® ©Anritsu, October 2004. All trademarks are registered trademarks of their respective companies. Data subject to change without notice. www.valuetronics.com 11410-00327 Rev. C...

  • Page 345: Subject Index

    A TO G Subject Index Error Messages Operation Related ..5-7 to 5-9 Functional Description..2-17 to 2-19 Self-Test ....5-3 to 5-6 ALC and Modulation Subsystem ESD (Electrostatic Discharge) Block Diagram .
  • Page 346 H TO S Handling Parts Ordering Information ... 6-4 Components and Subassemblies . . . 1-6 to 1-7 PC Setup ..... 4-7 Performance Specifications .
  • Page 347 T TO Y Switched Doubler Module ... 2-24 Troubleshooting ALC ..... 5-27 Switched Filter Auxiliary PCB .
  • Page 348 www.valuetronics.com...

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