Anritsu FieldMaster MS2080A Maintenance Manual
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Anritsu FieldMaster MS2080A Maintenance Manual

Handheld rf spectrum analyzer
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Maintenance Manual
FieldMaster™ MS2080A
Handheld RF Spectrum Analyzer
MS2080A-704 9 kHz to 4 GHZ (Option 704)
Anritsu Company
P/N: 10580-00485
490 Jarvis Drive
Revision: A
Morgan Hill, CA 95037-2809
Published: October 2022
USA
Copyright 2022 Anritsu Company
http://www.anritsu.com

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Summary of Contents for Anritsu FieldMaster MS2080A

  • Page 1 Maintenance Manual FieldMaster™ MS2080A Handheld RF Spectrum Analyzer MS2080A-704 9 kHz to 4 GHZ (Option 704) Anritsu Company P/N: 10580-00485 490 Jarvis Drive Revision: A Morgan Hill, CA 95037-2809 Published: October 2022 Copyright 2022 Anritsu Company http://www.anritsu.com...
  • Page 2 This product and its manuals may require an Export License or approval by the government of the product country of origin for re-export from your country. Before you export this product or any of its manuals, please contact Anritsu Company to confirm whether or not these items are export-controlled.

  • Page 3: Table Of Contents

    Contacting Anritsu ........
  • Page 4 Introduction ..............4-1 Level Accuracy Problems .

  • Page 5: Chapter 1- General Information

    Anritsu recommends that you make a copy of the test records to document the measurements each time a Performance Verification is performed. Continuing to document this process each time it is performed provides a detailed history of instrument performance.

  • Page 6: Contacting Anritsu

    1-2 Contacting Anritsu General Information Contacting Anritsu To contact Anritsu, visit the following URL and select the services in your region: http://www.anritsu.com/contact-us. Required Test Equipment and Tools Table 1-2 provides a list of the test equipment used for the performance verification tests of the instrument.

  • Page 7: Replaceable Parts

    General Information 1-4 Replaceable Parts Table 1-3. Required Tools Tools Specification Wrench 5/16” Torx Screwdriver Torx Screwdriver T 20 Phillips Screwdriver Phillips Screwdriver Nut Driver 5.5 mm Hex Socket Driver 6 mm (1/4”) Replaceable Parts The MS2080A replacement parts and their description are listed below in Table 1-4.
  • Page 8 1-4 Replaceable Parts General Information PN: 10580-00485 Rev. A MS2080A MM...

  • Page 9: Chapter 2-Spectrum Analyzer Verification

    Chapter 2 — Spectrum Analyzer Verification Introduction This chapter provides the verification procedures for the MS2080A Field Master. Verification tests that are associated with other instrument options are described in Chapter 3, “Assembly Replacement”. Record the measurement results in the test record templates provided in Appendix A, “Test Records”.

  • Page 10: Pass/Fail Determination For Instrument Key Parameter Performance Tests

    2-1 Introduction Spectrum Analyzer Verification PASS/FAIL Determination for Instrument Key Parameter Performance Tests Figure 2-1 shows the rule that is used to determine the pass/fail status of test results that are associated with warranted specifications. + Uncertainty Measurement Point (Reading) –...

  • Page 11: Frequency Accuracy

    Use the following procedures to verify the frequency accuracy of the MS2080A without GPS connection. Equipment Required • Anritsu MG36221A Synthesizer • Anritsu 3670V50A-2 Coaxial Cable, V(m) to V(f) • Anritsu 34VKF50 Adapter, V(m) to K(f) • Anritsu 34NK50 Adapter, K(m) to N(m) •...

  • Page 12: With Gps Connection (Option 31)

    1. Connect the 10 MHz Frequency Reference to the 10 MHz Ref In connector on the MG3692x Synthesizers. 2. Connect the MG3692x RF output to RF In, Port 1, on the MS2080A. 3. Power on the 10 MHz Reference Standard, Anritsu MG3692x, and the MS2080A. Allow the instruments to warm up for 10 minutes.

  • Page 13: Amplitude Accuracy

    • Rohde and Schwarz NRP67T Power Sensor • Anritsu 3670V50A-2 Coaxial Cable, V(m) to V(f) • Anritsu 34VKF50 Adapter, V(m) to K(f), for 43.5 GHz units • Anritsu 34NK50 Adapter, K(m) to N(m), for 9 and 20 GHz units • 10 MHz Frequency Reference Procedure 1.
  • Page 14 2-3 Amplitude Accuracy Spectrum Analyzer Verification 13. Adjust the NRP67T power level to +10.0 dBm. (The power level reading of MG36221A should be approximately +16 dBm.) 14. Set the MS2080A center frequency to 50 MHz. 15. Perform a marker peak search and record the amplitude in Table A-4, “Power Level Accuracy at 50 MHz (Preamplifier Off)”...

  • Page 15: Amplitude Accuracy - Preamplifier On

    • Rohde and Schwarz NRP67T Power Sensor • Anritsu 3670V50A-2 Coaxial Cable, V(m) to V(f) • Anritsu 34VKF50 Adapter, V(m) to K(f), for 43.5 GHz units • Anritsu 34NK50 Adapter, K(m) to N(m), for 9 and 20 GHz units • 10 MHz Frequency Reference Procedure 1.

  • Page 16: Single Side Band (Ssb) Phase Noise

    Before continuing, allow a 30 minute warm-up for the internal circuitry to stabilize. Equipment Required • Anritsu MG36221A • Anritsu 15NNF50-1.5B Coaxial Cable, N(m) to N(f) • 10 MHz Frequency Reference Procedure 1. Connect the external 10 MHz Reference to both the MG36221A and MS2080A.
  • Page 17 Spectrum Analyzer Verification 2-4 Single Side Band (SSB) Phase Noise 10. Change the Delta Frequency from 10 kHz to 100 kHz and record the difference in level between the peak at 1 GHz and the noise level 100 kHz away at 1000.100 MHz in Table A-6, “Spectral Purity –...

  • Page 18: Second Harmonic Distortion

    Before continuing, allow a 30 minute warm-up for the internal circuitry to stabilize. Equipment Required • Anritsu MG36221A Synthesizer • Min-Circuits NLP-50 Low Pass Filter • Anritsu 15NNF50-1.5C RF Cable • Anritsu 34NN50A Adapter • 10 MHz Frequency Reference • 71693-R K(f) to N(f) Adapter, for 43.5 GHz units •...

  • Page 19: Displayed Average Noise Level (Danl)

    Note Before continuing, allow a 30 minute warm-up for the internal circuitry to stabilize. Equipment Required • Anritsu 28N50-2 Termination Procedure 1. Attach the Termination to the RF input of the MS2080A. 2. Set the MS2080A to Spectrum Analyzer mode and preset the instrument (PRESET > Preset Mode).

  • Page 20: Danl - Preamplifier On

    Note Before continuing, allow a 30 minute warm-up for the internal circuitry to stabilize. Equipment Required • Anritsu 28N50-2 Termination Procedure 1. Attach the Termination to the RF input of the MS2080A. 2. Set the MS2080A to Spectrum Analyzer mode and preset the instrument (PRESET > Preset Mode).

  • Page 21: Residual Spurs

    Appendix Equipment Required • Anritsu 28N50-2 Termination Procedure 1. Attach the Termination to the RF input of the MS2080A. 2. Set the MS2080A to Spectrum Analyzer mode and preset the instrument (PRESET > Preset Mode).

  • Page 22: Residual Spurs - Preamplifier On

    Appendix Note Before continuing, allow a 30 minute warm-up for the internal circuitry to stabilize. Equipment Required • Anritsu 28N50-2 Termination • Anritsu 28KF50 Termination Procedure 1. Attach the Termination to the RF input of the MS2080A. 2. Set the MS2080A to Spectrum Analyzer mode and preset the instrument (PRESET > Preset Mode).

  • Page 23: Input Related Spurs

    Before continuing, allow a 30 minute warm-up for the internal circuitry to stabilize. Equipment Required • Anritsu MG36221A Synthesizer • Anritsu 3670V50A-2 Coaxial Cable, V(m) to V(f) • Anritsu 34VKF50 Adapter, V(m) to K(f) • Anritsu 34NK50 Adapter, K(m) to N(m) •...

  • Page 24: Third Order Intercept (Toi)

    • Weinschel 44-20 Attenuator, Qty 2 • Anritsu ML2438A Power Meter • Anritsu MA2442D Power Sensor • Anritsu 34NN50A Adapter • Anritsu 15NNF50-1.5C RF Cables, Qty 2 • 10 MHz Frequency Reference • 71693-R K(f) to N(f) Adapter Procedure 1. Connect the 10 MHz Reference to the MG36221A, MG3710A, and MS2080A.
  • Page 25 Spectrum Analyzer Verification 2-9 Third Order Intercept (TOI) 14. Turn on the RF output of both the MG36221A and MG3710A. 15. On the MS2080A perform a Peak Search and record the peak value at 2400.151 MHz in Table A-13, “Third Order Intercept (TOI)” on page A-5.
  • Page 26 2-9 Third Order Intercept (TOI) Spectrum Analyzer Verification 2-18 PN: 10580-00485 Rev. A MS2080A MM...

  • Page 27: Chapter 3-Assembly Replacement

    Chapter 3 — Assembly Replacement Introduction This chapter describes opening and closing the Field Master case along with basic parts replacement steps. The sections are as follows: • “Battery Pack Removal and Replacement” • “Bumpers Removal” • “Rear Case Removal” •...

  • Page 28: Battery Pack Removal And Replacement

    3-3 Battery Pack Removal and Replacement Assembly Replacement Battery Pack Removal and Replacement This section provides instructions for the removal and replacement of the instrument battery pack. 1. Locate the battery access door on the left side of the unit. 2.

  • Page 29: Bumpers Removal

    Assembly Replacement 3-4 Bumpers Removal Bumpers Removal The procedure below provides instructions for removing the bumpers of the instrument: 1. Remove the left and right bumpers by pulling them outward from the bottom. See Figure 3-3. Figure 3-3. Pulling of Side Bumpers 2.

  • Page 30: Rear Case Removal

    3-5 Rear Case Removal Assembly Replacement Rear Case Removal The procedure below provides instructions for removing the rear case of the instrument: 1. Remove the battery as shown in Section 3-3 “Battery Pack Removal and Replacement” on page 3-2. 2. Remove the side bumpers as shown in Section 3-4 “Bumpers Removal”...

  • Page 31: Touchscreen/Lcd Removal

    Assembly Replacement 3-6 Touchscreen/LCD Removal Touchscreen/LCD Removal This procedure provides instructions to replace LCD touchscreen. With the rear case removed as shown in Section 3-5 “Rear Case Removal” on page 3-4, the internal assemblies can be removed and replaced as explained below: 1.
  • Page 32 3-6 Touchscreen/LCD Removal Assembly Replacement 5. Remove the three Torx screws securing the battery shroud using a T10 Torx screw driver. See Figure 3-8. Figure 3-8. Battery Shroud Removal 6. Disconnect the battery cable and remove the battery shroud. See Figure 3-9.
  • Page 33 Assembly Replacement 3-6 Touchscreen/LCD Removal 7. Carefully tilt the Main PCB/SPA PCB assembly to view the display cable. See Figure 3-10. Figure 3-10. Display Cable 8. Release the locking connector by slowing lifting the metal flap upwards to disconnect the display cable. Figure 3-11.
  • Page 34 3-6 Touchscreen/LCD Removal Assembly Replacement 9. Carefully tilt the Main PCB/SPA PCB assembly to remove the two Wi-Fi antennas. Release the Wi-Fi Antennas by carefully prying the end slots using a straight screw driver. See Figure 3-12. Figure 3-12. Releasing the Wi-Fi antennas 10.

  • Page 35: Spa Pcb Assembly Removal

    Assembly Replacement 3-7 SPA PCB Assembly Removal SPA PCB Assembly Removal 1. Remove the four nuts along with four lock washers from the SMA ports on the top connector panel using a 5/16" wrench. See Figure 3-14. Figure 3-14. SPA PCB Removal 2.
  • Page 36 3-7 SPA PCB Assembly Removal Assembly Replacement 3. Remove the eight Torx screws securing the SPA PCB Assembly to the Main PCB using a T10 Torx driver. Figure 3-16. Figure 3-16. SPA PCB Removal: Torx Screws 3-10 PN: 10580-00485 Rev. A MS2080A MM...

  • Page 37: Main Pcb Removal

    Assembly Replacement 3-8 Main PCB Removal Main PCB Removal The semi-rigid cable connecting the RF input adapter and the step attenuator on the SPA PCB is normally a part of the SPA PCB Assembly, which may be replaced independently. 1. Carefully remove the two Wi-Fi cables, the keypad cable, and shielded LCD cable connected to the Main PCB.

  • Page 38: Fan Assembly Removal

    3-9 Fan Assembly Removal Assembly Replacement Fan Assembly Removal The fan assembly sits in a slot in the front case and is plugged into the Main PCB. 1. Carefully disconnect the harness and lift the fan assembly out of the case. See Figure 3-18.

  • Page 39: 3-10 Rf Input Adapter Removal

    Assembly Replacement 3-10 RF Input Adapter Removal 3-10 RF Input Adapter Removal The RF input adapter consists of four T10 Torx screws that are secured to the SPA PCB Assembly. Follow the steps below to remove the RF input adapter: 1.

  • Page 40: Reassembling The Unit

    3-11 Reassembling the Unit Assembly Replacement 3-11 Reassembling the Unit Reassembling the unit is simply a process done in the reverse order of the removal procedure. Use caution while reassembling all the parts together: 1. Ensure to carefully align the cables of the Wi-Fi antenna into the littles grooves of the Main PCB to prevent the Wi-Fi antenna cables from being smashed or crimped.

  • Page 41: Chapter 4-Troubleshooting

    Chapter 4 — Troubleshooting Introduction This chapter describes the primary troubleshooting operations that can be performed by all Anritsu service centers. Perform the troubleshooting suggestions in the order they are listed. Only qualified Anritsu personnel should replace internal assemblies. Major subassemblies shown in Table 1-4 are typically the items that may be replaced.
  • Page 42 4-2 Level Accuracy Problems Troubleshooting PN: 10580-00485 Rev. A MS2080A MM...

  • Page 43: Appendix A-Test Records

    This appendix provides the test record templates to record the performance of the MS2080A Field Master. Anritsu recommends that you make a copy of the following test record pages and document the measurements each time a performance verification is performed. Continuing to document this process each time it is performed provides a detailed history of instrument performance.

  • Page 44: A-2 Test Records For Spectrum Analyzer Verification

    A-2 Test Records for Spectrum Analyzer Verification Test Records MS2080A Firmware Rev: ______________ Operator: ____________________ Date: ____________ Serial Number: _______________ Options: __________________________________________________ Table A-4. Power Level Accuracy at 50 MHz (Preamplifier Off) MS2080A NRP67T Expected MS2080A Input Reference Power Power Measured Measurement Frequency...
  • Page 45 Test Records A-2 Test Records for Spectrum Analyzer Verification MS2080A Firmware Rev: ______________ Operator: ____________________ Date: ____________ Serial Number: _______________ Options: __________________________________________________ Table A-5. Power Level Accuracy (Preamplifier On) NRP67T MS2080A Power Expected Measurement Frequency Level Power Level MS2080A Measured Power Level Uncertainty Specification 10 kHz –10 dBm...
  • Page 46 A-2 Test Records for Spectrum Analyzer Verification Test Records MS2080A Firmware Rev: ______________ Operator: ____________________ Date: ____________ Serial Number: _______________ Options: __________________________________________________ Table A-7. Second Harmonic Distortion Second Harmonic Distortion Measurement Frequency Measured Value (100.2 Meas Value – 50.1 Meas Value) Uncertainty Specification 50.1 MHz...
  • Page 47 Test Records A-2 Test Records for Spectrum Analyzer Verification MS2080A Firmware Rev: ______________ Operator: ____________________ Date: ____________ Serial Number: _______________ Options: __________________________________________________ Table A-12. Input Related Spurs Calculated IRS Center Measured Input (Input Signal – Measurement Frequency Signal Measured Spur Spur) Uncertainty Specification...
  • Page 48 A-2 Test Records for Spectrum Analyzer Verification Test Records PN: 10580-00485 Rev. A MS2080A MM...
  • Page 50 Anritsu Company 490 Jarvis Drive Anritsu utilizes recycled paper and environmentally conscious inks and toner. Morgan Hill, CA 95037-2809 http://www.anritsu.com...

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