Page 1 Sensor and Analyzer for LTE RF over CPRI and PIM over CPRI MT2780A-0752 (Option 752) MT2780A-0754 (Option 754) MT2780A-0755 (Option 755) Anritsu Company Part Number: 10580-00467 490 Jarvis Drive Revision: C Morgan Hill, CA 95037-2809 Published: October 2022 Copyright 2022 Anritsu Company...
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Page 5 This product may be supplied with a rechargeable battery. Only use batteries that are designed for your equipment and that are supplied by Anritsu Company. Using an Warning incorrect battery could present a safety hazard and cause personal injury or damage to the equipment and other loss.
Page 6 Depending on the economic region/area that your equipment is marketed for, certain labels may not Note be applicable. Please refer to the markings affixed to your equipment, the product data sheet, and its declaration of conformity on https://www.anritsu.com Front-6 PN: 10580-00467 Rev. C MT2780A UG...
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Page 10 Notice Anritsu Company has prepared this manual for use by Anritsu Company personnel and customers as a guide for the proper installation, operation, and maintenance of Anritsu Company equipment and computer programs. The drawings, specifications, and information contained therein are the property of Anritsu Company, and any unauthorized use ...
Page 11: Table Of Contents
Contacting Anritsu for Sales and Service ........
Page 12 Table of Contents (Continued) 2-14 Heat Map tab (Option 755) ........... 2-46 2-15 PIM Location tab (Option 754) .
Page 13 Table of Contents (Continued) Heat Map ..............5-6 Appendix A—Reports PIM over CPRI Reports .
Page 14 Contents-4 PN: 10580-00467 Rev. C MT2780A UG...
Page 15: Chapter 1-General Information
Chapter 1 — General Information Introduction This user guide covers the instrument overview, system functions, and other common features, along with a brief guide to the basic measurement concepts and setups. Most of the instrument operations are covered in specific chapters of this manual as listed below. Additionally, the MT2780A uses the MX280020A control software installed on a PC or laptop for controlling the IQ Fiber Master hardware.
Page 16: Additional Documentation
Elements in navigation paths are separated as follows: FILE > PREFERENCES > GENERAL. Instrument Description The IQ Fiber Master MT2780A PIM and RF analyzer is a CPRI-based solution that provides critical PIM diagnosis across multiple bands and sectors using live traffic. Cell sites remain active during testing as this instrument uses a non-invasive process to report real-time results.
Page 17: Chapter 2-Instrument Overview
Chapter 2 — Instrument Overview Introduction This chapter provides an overview of the Anritsu MT2780A IQ Fiber Master. It describes the instrument hardware features, general system settings, instrument configurations, and the connector panels. This guide helps those personnel familiar with computers, test and measurement equipment to understand the IQ Fiber Master analyzer, optical tap, and the accompanying software, and to understand detecting and locating PIM.
Page 18: Iq Fiber Master And Optical Tap Connector Panels
2-2 IQ Fiber Master and Optical Tap Connector Panels Instrument Overview IQ Fiber Master and Optical Tap Connector Panels This section shows the front and back connector panels of MT2780A IQ Fiber Master analyzer and optical tap. IQ Fiber Master and Optical Tap Front Connector Panel Optical fiber cables are used to connect IQ Fiber Master and optical tap.
Page 19: Iq Fiber Master Back Connector Panel
Instrument Overview 2-2 IQ Fiber Master and Optical Tap Connector Panels IQ Fiber Master Back Connector Panel The back panel of the IQ Fiber Master consists of power, USB and Ethernet ports. The Ethernet port is used to connect to the PC running the IQ Fiber Master control software. 1.
Page 20: Installation Of Iq Fiber Master Control Software (Mx280020A)
2. Download the latest version of IQ Fiber Master control software from the company’s product page: https://www.anritsu.com/en-us/test-measurement/products/mt2780a 3. Launch the IQ fiber master executable file and follow the on-screen instructions.
Page 21: Connecting The Iq Fiber Master
Instrument Overview 2-3 Installation of IQ Fiber Master Control Software (MX280020A) Connecting the IQ Fiber Master To connect the IQ Fiber Master follow the steps below: 1. Using an Ethernet cable connect the IQ Fiber Master analyzer with a PC or laptop connected to the Internet.
Page 22 2-3 Installation of IQ Fiber Master Control Software (MX280020A) Instrument Overview 5. Click File> Licensing to verify the installed options. The Licensing dialog consists of License Key field, the sensor ID in the Machine ID field, and the licensed options: Figure 2-5.
Page 23: Connecting To The Tap
Instrument Overview 2-3 Installation of IQ Fiber Master Control Software (MX280020A) Connecting to the Tap The Fiber Diagram button in 3. Run Tests tab shows the fiber-connectivity diagram using which the IQ Fiber Master analyzer and the optical tap are connected through optical fiber cables. The fiber-connectivity diagram is based on the Site Config and Roster data files loaded in the Site and Roster Editor tabs.
Page 24 2-3 Installation of IQ Fiber Master Control Software (MX280020A) Instrument Overview 2. Refer to Chapter 3, “Making LTE RF over CPRI Measurements (Option 752)”to configure the Site and Roster setup (CPRI test), if a pre-configured setup is not available. 3. Click the 3. Run Tests tab and load the site configuration and roster files for the site under test (pre-configured or new setup).
Page 25 Instrument Overview 2-3 Installation of IQ Fiber Master Control Software (MX280020A) 6. If Config Check test fails click the Fiber Diagram button to visually verify the fiber connections. Green lines between the SFP and the tap indicate a good fiber connection, yellow or red lines indicate a wrong connection.
Page 26: Mx280020A Control Software Gui Overview
2-4 MX280020A Control Software GUI Overview Instrument Overview MX280020A Control Software GUI Overview The MS280020A control software is used to interface and control the IQ Fiber Master hardware. It consists of main menu, different measurement tabs along with control buttons that are unique to the selected tab. The control software consists of the following: •...
Page 27: Main Menu
Figure 2-10. Upgrade Feature Message To upgrade an option the user must first purchase the option and after the order is processed (follow Anritsu customer service procedure) the option license is added to the MT2780A IQ Fiber Master license server, the...
Page 28 2-5 Main Menu Instrument Overview Reset to Defaults... Click File > Reset to Defaults to reset all the saved settings, calibration data etc. You are prompted with a warning message before confirming the reset. Figure 2-11. Unstored Result Warning Quit A warning message is displayed when you try to exit the application without saving the test results.
Page 29: View
• Generate a PIM report • Load a new style-sheet (i.e. report appearance) or select an existing style sheets. • Choose the GUI display color settings between Anritsu and Default. Report • Click View > Report to generate a PIM report consisting of site and instrument details. From the Report window you can create a new report, save the generated report, customize the report detail settings, preview and print the report.
Page 30 Figure 2-14. Report Settings Dialog Load Click View>Load to load an existing stylesheet for generating PIM reports. Anritsu and Default Color Theme Click View menu and choose an appropriate color theme. 2-14 PN: 10580-00467 Rev. C...
Page 31: Help
Instrument Overview 2-5 Main Menu Help Click Help menu to view Help files, check software updates, create or load diagnostics package etc. Figure 2-15. Help Menu Help Contents Provides a detailed, searchable list of help topics related to the product. Click Help>Help Contents. Walkthrough Starts the product walk through on how to initiate a test.
Page 32 2-5 Main Menu Instrument Overview Check for Updates... Checks for updates to the analytics application (this requires an Internet connection). Figure 2-17. IQ Fiber Master Check for Updates Dialog Create Diagnostics Package Creates a file, which can be loaded later for troubleshooting by technical support personnel, including IQ vectors, log files, and configuration data.
Page 33: Sensor
Instrument Overview 2-5 Main Menu Load Diagnostics Package Loads a previously saved diagnostics file. Sensor The Sensor Main Menu choice provides these tasks. Figure 2-18. Sensor Main Menu MT2780A UG PN: 10580-00467 Rev. C 2-17...
Page 34 2-5 Main Menu Instrument Overview Codeload... (Update the Sensor Firmware) This command checks and if applicable, updates the sensor with new firmware (this requires an Internet connection). Browse to the file’s location and click Load. Figure 2-19. CodeLoad Firmware Dialog When the software update is complete, the analyzer displays this dialog:...
Page 35 Instrument Overview 2-5 Main Menu Save Captures Select One shot radio button to save captures to a specified directory as single one-shot capture (with a variable capture period of 1ms to 10s) Figure 2-21. One Shot Capture Select Continuous radio button to save captures to a specified directory as continuous capture with a delay ranging from1 to 99 minutes.
Page 36 2-5 Main Menu Instrument Overview Reboot Sensor This option reboots the sensor. Figure 2-24. Sensor Reboot Dialog Note After a sensor is rebooted, click the Connect button. About Sensor Displays an information-only dialog containing data about the status of the sensor. Figure 2-25.
Page 37: Control Buttons
Instrument Overview 2-5 Main Menu Control Buttons Run: testname This button runs the test named in its label: Config Check, PIM Level, PIM Location, or Cross Sector. Stop This button stops or suspends the test currently running. Add to Report This button is modal: in PIM Level mode, adds all the report segments to the report;...
Page 38: Preferences
2-6 Preferences Instrument Overview Preferences Click File>Preferences to access various settings such as General, Config Check and Heatmap.Click the Apply button to confirm the selections; click X to return to the application. General Click File > General to access General Setting, dB Units and Plot settings. General Settings Click File >...
Page 39: Db Units
Instrument Overview 2-6 Preferences dB Units To modify the dB Unit settings follow the steps below: • Click File > General > dB Units to view the noise floor for each vendor (and bandwidth). The Advanced option in the RF over CPRI is used to measure noise floor of the RRH under test. See “Advanced (Set the Noise Floor)”...
Page 40: Plot Settings
2-6 Preferences Instrument Overview Plot Settings To modify the plot settings follow the steps below: • Click File > General > Plot Settings. Figure 2-29. General Plot Settings • Click the Pen Width drop-down menu to increase or decrease the pen width. •...
Page 41: Config Check Rules
Instrument Overview 2-6 Preferences Config Check Rules To modify Config Check test settings follow the steps below: • Click File > Preferences > Config Check > Rules to view the config check test results parameters. • Click the + sign to view a short description of the option along with additional fields with values if any. Figure 2-30.
Page 42 2-6 Preferences Instrument Overview • Uncheck this box to view only the options listed as shown in Figure 2-32. Figure 2-32. Config Check Results • Optical connectivity – Verify that the SFP is present, its data may be read, and it is receiving sufficient optical power.
Page 43: Heatmap Rules
Instrument Overview 2-6 Preferences Heatmap Rules Follow the steps below to modify the heatmap settings: • Click File > Preferences > Heatmap > Rules. Figure 2-33. Heatmap Rules • Check All box to include all the PIM measurements in the heatmap summary. •...
Page 44: Site Editor Tab
2-7 Site Editor tab Instrument Overview Site Editor tab The 1. Site Editor tab provides a way to define the equipment to be tested according to the testing protocol at a site. Notice the tabs numbered 1 through 3. These remind you of the order to set up a new site or start a new batch of measurements.
Page 45 Instrument Overview 2-7 Site Editor tab Control Buttons Auto-detect: Determines the CPRI line rate, the air std, number of AxC's. The user needs to select the number of system fibers and vendor name BEFORE starting auto-detect. CPRI Analysis: Starts an LTE RF over CPRI test. This button becomes active when a sensor is selected and the CPRI link is configured.
Page 46 2-7 Site Editor tab Instrument Overview CPRI (set up the CPRI interface) Number of system fibers: Select the number based on how many fibers are connected to the sensor, typically three: two DL and one UL. Fiber Mode: Select either Single or Multi Mode. Fiber: Select the fiber via the SFP module it is connected to.
Page 47 Instrument Overview 2-7 Site Editor tab These are the standard sampling rates: • LTE 5 @ 7.68 MHZ • LTE 10 @ 15.36 MHz • LTE 15 @ 23.04 MHz • LTE 20 @ 30.72 MHz These are the down-sampling (compressed) rates: •...
Page 48 2-7 Site Editor tab Instrument Overview CPRI Analysis (Option 752) Figure 2-37, “Analyzer tab: LTE RF over CPRI Mode (Relative Spectrum)” “Starting the LTE RF over CPRI Mode” on page 3-6 for more information on CPRI Analysis. Figure 2-37. Analyzer tab: LTE RF over CPRI Mode (Relative Spectrum) 2-32 PN: 10580-00467 Rev.
Page 49 Instrument Overview 2-7 Site Editor tab RF (set up carriers) These are the parameters for this section: Number of RF systems: From 1 to 8. System n: System number, 1 through n, depending upon the number selected in Number of systems. Carriers: This field specifies how many carriers will be part of this site.
Page 50 2-7 Site Editor tab Instrument Overview Frequency Band: Use this button to display the Frequency Band dialog and set whether the system is UL or DL. If you do not know the 3GPP band but know the frequency, you can look it up on the dialog Figure 2-39.
Page 51: Roster Editor Tab
Instrument Overview 2-8 Roster Editor tab Roster Editor tab Use the 2. Roster Editor to set up the various tests for PIM over CPRI for a site including the downlinks (DL) and uplink (UL), the antennas, limits, and other measures. Refer to Chapter 4, “Making PIM-over-CPRI Measurements (Option 754)”...
Page 52 2-8 Roster Editor tab Instrument Overview Site Config Buttons Load: Loads a site information file. This file is maintained by the Site Editor. Roster File Buttons Auto Generate: Will generate a roster based on site information file. Load: Loads a roster file. Save: Saves the roster file.
Page 53: Run Tests Tab
Instrument Overview 2-9 Run Tests tab Run Tests tab Use the 3. Run Tests tab to run the PIM over CPRI analysis as specified in the Site and Roster Editor tabs. Follow the steps below to select and run a test: 1.
Page 54 2-9 Run Tests tab Instrument Overview Control Buttons Run: test name: This button is active when a connection to a sensor is active, and it changes name and function depending upon whether the selected test is one of these: Figure 2-42. Selected Test List Stop: Stops the test in progress and resets all the controls to their pretest state.
Page 55: Preliminary Configuration Checking
Instrument Overview 2-9 Run Tests tab Preliminary Configuration Checking Configuration checking for any test is accomplished by building and saving, or loading a Site Configuration (sector-mapping to optical-fiber) file and a Roster file (test). The Site Editor and Roster Editor tabs maintain contents of the files, which can be done ahead of time, if site data are known.
Page 56 2-9 Run Tests tab Instrument Overview 3. Under 2. Roster Editor tab, click Load...button to load the roster file and click Apply to save the file. Figure 2-45. 2. Roster Editor tab: Preliminary Configuration Test Suite 4. Click 3. Run Tests tab. The analyzer checks the tests and posts available or invalid test in the Status column.
Page 57: Final Configuration Checking
Instrument Overview 2-9 Run Tests tab Final Configuration Checking After the preliminary configuration check and the fiber connections are complete, the system is ready for the final configuration check. To final-check a configuration: 1. Select Config Check radio button. Figure 2-47. Configuration Check Status 2.
Page 58: Analyzer Tab (Option 754)
2-10 Analyzer tab (Option 754) Instrument Overview 2-10 Analyzer tab (Option 754) The Analyzer tab is modal and the data and options it shows depend upon the path that displayed them. Use this tab to view the ongoing (or paused) test. PIM over CPRI Tests Figure 2-49, “Analyzer tab: PIM over CPRI Mode”...
Page 59: Pim Vs Time Tab (Option 755)
Instrument Overview 2-11 PIM vs Time tab (Option 755) 2-11 PIM vs Time tab (Option 755) Use PIM vs Time tab to compare PIM values to the time it took to detect them. See “PIM vs Time (Long-term Monitoring)” on page 5-1 for more information about this report.
Page 60: Pim Distribution Tab (Option 755)
2-12 PIM Distribution tab (Option 755) Instrument Overview 2-12 PIM Distribution tab (Option 755) Use PIM Distribution tab to display the PIM measurements exceeding the PIM threshold level. See “PIM Distribution” on page 5-4 for more information about the distribution report. Figure 2-51.
Page 61: Pim Daily Tab (For Pim Failure) (Option 755)
Instrument Overview 2-13 PIM Daily tab (for PIM Failure) (Option 755) 2-13 PIM Daily tab (for PIM Failure) (Option 755) Use PIM Daily tab to display a report that shows the results for a 24-hour period. See “PIM Daily” on page 5-5 for more information about the daily report.
Page 62: Heat Map Tab (Option 755)
2-14 Heat Map tab (Option 755) Instrument Overview 2-14 Heat Map tab (Option 755) Use Heatmap to display the PIM values in a color-coded table with the strongest return in the reddest color. For information about heat map refer to “Heat Map”...
Page 63: Pim Location Tab (Option 754)
Instrument Overview 2-15 PIM Location tab (Option 754) 2-15 PIM Location tab (Option 754) Use PIM Location tab to pinpoint the distance to a PIM source. Figure 2-54. PIM Location tab MT2780A UG PN: 10580-00467 Rev. C 2-47...
Page 64 2-15 PIM Location tab (Option 754) Instrument Overview 2-48 PN: 10580-00467 Rev. C MT2780A UG...
Page 65: Chapter 3-Making Lte Rf Over Cpri Measurements (Option 752)
Chapter 3 — Making LTE RF over CPRI Measurements (Option 752) The 1. Site Editor tab sets up all the CPRI measurements including the Option 752. This option provides the same capabilities for fiber systems that a spectrum analyzer does for RF. Preparing the Site’s Details (Site Editor) The analyzer needs to know specific parameters for the cell site under test.
Page 66 3-1 Preparing the Site’s Details (Site Editor) Making LTE RF over CPRI Measurements (Option 752) 3. Under CPRI section select the number of system fibers connected to the SFPs installed in the MT2780A(for e.g. three fibers to represent 2 x DLs and 1 x UL). See Figure 2-1, “IQ Fiber Master Analyzer (top) and Optical Tap (bottom) Front Connector Panel”.
Page 67 Making LTE RF over CPRI Measurements (Option 752) 3-1 Preparing the Site’s Details (Site Editor) Figure 3-3. Auto-detect completed dialog box 8. After Auto-detect has completed, follow the steps below to map the CPRI parameters onto the appropriate RF carriers: a.
Page 68 3-1 Preparing the Site’s Details (Site Editor) Making LTE RF over CPRI Measurements (Option 752) 9. Map the CPRI parameters to the RF carriers by selecting the Antenna (found under the CPRI section on the left) and dragging and-dropping across to the appropriate RF carrier DL or UL box. Figure 3-5.
Page 69: Loading Existing Site Configuration File
Making LTE RF over CPRI Measurements (Option 752) 3-1 Preparing the Site’s Details (Site Editor) Loading Existing Site Configuration File Click Site Editor tab and click Load...button next to Site Config to load the existing pre-configured file. When reusing the existing site config file make sure that the physical connections are identical to the Note original setup.
Page 70: Starting The Lte Rf Over Cpri Mode
3-2 Starting the LTE RF over CPRI Mode Making LTE RF over CPRI Measurements (Option 752) Starting the LTE RF over CPRI Mode In Site Editor tab click CPRI Analysis button to activate the LTE RF over CPRI mode. The the current tab automatically switches to the Analyzer tab and, after a short delay, the IQ streams enabled in the Site Editor should be visible, similar to what is shown in Figure 3-7.Note that up to 12 traces can be...
Page 71 Making LTE RF over CPRI Measurements (Option 752) 3-2 Starting the LTE RF over CPRI Mode Figure 3-8. Analyzer tab: Standard Relative Spectrum View (dark) with Markers and Side bars Right click on the spectrum to view options to choose either Dark or Light view, Show Sidebars or Hide Sidebars and Show Marker Table or Hide Marker Table.
Page 72 3-2 Starting the LTE RF over CPRI Mode Making LTE RF over CPRI Measurements (Option 752) Figure 3-10. Analyzer tab: Standard Absolute Spectrum View (dark) with Sidebars Figure 3-11. Analyzer tab: Standard Relative Spectrum view (dark) without sidebars PN: 10580-00467 Rev. C MT2780A UG...
Page 73 Making LTE RF over CPRI Measurements (Option 752) 3-2 Starting the LTE RF over CPRI Mode Figure 3-12. Analyzer tab: Standard Absolute Spectrum View (dark) without sidebars Figure 3-13. Analyzer tab: Multi-window spectrum view (dark) MT2780A UG PN: 10580-00467 Rev. C...
Page 74 3-2 Starting the LTE RF over CPRI Mode Making LTE RF over CPRI Measurements (Option 752) Figure 3-14. Analyzer tab: Standard Relative Spectrum View (dark) with Markers and no sidebars Figure 3-15. Analyzer tab: Multi-window spectrum view (dark) with markers per plot 3-10 PN: 10580-00467 Rev.
Page 75 Making LTE RF over CPRI Measurements (Option 752) 3-2 Starting the LTE RF over CPRI Mode Figure 3-16. Analyzer tab: Multi-window spectrum view (dark) with Markers and no sidebars The Layout drop-down menu will allow multiple window configurations that can be configured Note individually.
Page 76 3-2 Starting the LTE RF over CPRI Mode Making LTE RF over CPRI Measurements (Option 752) Figure 3-17. Analyzer tab: Standard Relative Spectrum View (light) with Sidebars Figure 3-18. Analyzer tab: Standard Absolute Spectrum View (light) with sidebars 3-12 PN: 10580-00467 Rev. C MT2780A UG...
Page 77 Making LTE RF over CPRI Measurements (Option 752) 3-2 Starting the LTE RF over CPRI Mode Figure 3-19. Analyzer tab: Standard Relative Spectrum View (light) without sidebars Figure 3-20. Analyzer tab: Standard Absolute Spectrum View without sidebars and Markers MT2780A UG PN: 10580-00467 Rev.
Page 78 3-2 Starting the LTE RF over CPRI Mode Making LTE RF over CPRI Measurements (Option 752) Figure 3-21. Analyzer tab: Multi-window spectrum view (light) with sidebars Figure 3-22. Analyzer tab: Standard Relative Spectrum View (light) with Markers and sidebars 3-14 PN: 10580-00467 Rev.
Page 79 Making LTE RF over CPRI Measurements (Option 752) 3-2 Starting the LTE RF over CPRI Mode Figure 3-23. Analyzer tab: Multi-window Spectrum View with Markers per plot and sidebars Figure 3-24. Analyzer tab: Standard Relative Spectrum View (light) with markers and no sidebars MT2780A UG PN: 10580-00467 Rev.
Page 80: Analyzer Tab
3-3 Analyzer tab Making LTE RF over CPRI Measurements (Option 752) Figure 3-25. Analyzer tab: Multi-window Spectrum View (light) with markers and no sidebars Analyzer tab The Analyzer tab consists of the following sidebars: • Export Image...button • Traces button •...
Page 81: Settings
Making LTE RF over CPRI Measurements (Option 752) 3-3 Analyzer tab Settings Use the settings menu on the right of the window to adjust the LTE RF over CPRI settings. Figure 3-26. Settings Dialog (The current options are accessible in the Settings dialog shown in Figure 3-26 on page 3-17.
Page 82: Axes
3-3 Analyzer tab Making LTE RF over CPRI Measurements (Option 752) • Window – Select a suitable window style for applying to the source data prior to the FFT. Figure 3-27. Selecting a Display Type • Spectrogram – Allocates the given (lower) portion of the plot’s vertical dimension to be used when the spectrogram is enabled.
Page 83: Plot
Making LTE RF over CPRI Measurements (Option 752) 3-3 Analyzer tab Plot The plot menu allows convenient selection of which traces to display on the currently selected plot. The available options are shown below: Figure 3-29. Plot Settings The traces can be filtered by which SFP they are on, or, if they have been configured, by the center frequency of the streams.
Page 84 3-3 Analyzer tab Making LTE RF over CPRI Measurements (Option 752) Click Traces menu under the Menu sidebar to access the detailed trace settings. Click on a desired trace listed in the left sidebar to view the corresponding trace details in the right sidebar as shown in Figure 3-31.
Page 85 Making LTE RF over CPRI Measurements (Option 752) 3-3 Analyzer tab Figure 3-32. Analyzer tab: Spectrogram View MT2780A UG PN: 10580-00467 Rev. C 3-21...
Page 86: Markers
3-3 Analyzer tab Making LTE RF over CPRI Measurements (Option 752) Markers Click the Markers button next to Traces button in the left sidebar to view the legend of up to a maximum of 6 markers. Click the eye icon to enable/disable the marker details listed in the marker table under the selected plot.
Page 87 Making LTE RF over CPRI Measurements (Option 752) 3-3 Analyzer tab The plot and marker can be selected using the respective drop-down lists or by clicking the plot (in a multi-plot layout) and trace button from the left-hand side. The marker menu has the following options: •...
Page 88 3-3 Analyzer tab Making LTE RF over CPRI Measurements (Option 752) The LTE RF over CPRI spectrum display shows the markers as numbered rectangles above the traces (1). The Markers list, at the lower left, of the display shows which markers are visible, the marker table (2), at the bottom, shows the frequencies and traces that the marker is involved in, and the Marker parameters (3), at the right of the display, govern the various aspects of the markers.
Page 89: Playback
Making LTE RF over CPRI Measurements (Option 752) 3-3 Analyzer tab Playback Traces can be captured and played back (normal, fixed, or slow motion). A ‘snapshot’ screen image can also be saved. Figure 3-37. Capture and Playback Save Capture: Captures the entire trace data, that may not be fully visible on the screen, for playback in a file with your choice of name and path.
Page 90: Advanced (Set The Noise Floor)
3-3 Analyzer tab Making LTE RF over CPRI Measurements (Option 752) Advanced (Set the Noise Floor) If the calibration factor for the uplink being measured is not known, the Advanced option can measure the noise floor of the RRH under test from the CPRI data. The measurement looks for quiet (minimum power, idle) periods within the LTE signal, and averages them to calculate the noise floor of the signal.
Page 91 Making LTE RF over CPRI Measurements (Option 752) 3-3 Analyzer tab 7. After the time set in the Timeout for Minimum elapses, Set dBm Calibration button appears. Figure 3-39. Advanced Settings After Calibration Completes 8. Click Set dBm Calibration button to apply the noise floor (dBm) to the vendor and LTE air standard as specified in the current Site Editor file.
Page 92 3-3 Analyzer tab Making LTE RF over CPRI Measurements (Option 752) 10. Click OK button to exit. Figure 3-41. Calibration Updated Dialog box 11. Go to File > Preferences > General > dB Units to verify the new conversion value and click Apply button.. Figure 3-42.
Page 93 Making LTE RF over CPRI Measurements (Option 752) 3-3 Analyzer tab This is the LTE RF over CPRI trace display after the calibration is successful. Note the addition of the red line about -108 dBm. Figure 3-43. Noise Floor Shown After Calibration 12.
Page 94: Export Image
3-3 Analyzer tab Making LTE RF over CPRI Measurements (Option 752) Export Image... In the Analyzer tab follow the steps below to capture the LTE RF over CPRI trace: • Click Export Image... button at the top left of the window to view the Image Capture dialog box. Figure 3-45.
Page 95: Zoom
Making LTE RF over CPRI Measurements (Option 752) 3-3 Analyzer tab Zoom While the LTE RF over CPRI is running, it is possible to zoom into regions of the currently selected plot. Note That this is a video zoom only so it does not change the way the trace is being determined. To zoom: 1.
Page 96 3-3 Analyzer tab Making LTE RF over CPRI Measurements (Option 752) 2. To zoom the power axis (vertical) only, hold the SHIFT key down in addition to the mouse operation. Figure 3-49. Analyzer tab: Power Axis Zoom (Vertical Axis) 3-32 PN: 10580-00467 Rev.
Page 97 Making LTE RF over CPRI Measurements (Option 752) 3-3 Analyzer tab 3. To zoom both axes simultaneously, hold the CTRL key down in addition to the mouse operation and define a box. Figure 3-50. Two-Axis Zoom 4. Double-click on the plot to reset the display to its normal view. MT2780A UG PN: 10580-00467 Rev.
Page 98: Stopping/Restarting Lte Rf Over Cpri Mode
3-4 Stopping/Restarting LTE RF over CPRI Mode Making LTE RF over CPRI Measurements (Option 752) Stopping/Restarting LTE RF over CPRI Mode Click the red Stop button on the top of the window, to stop the LTE RF over CPRI mode. This completely stops the data acquisition and the processing/display of all traces.
Page 99 Making LTE RF over CPRI Measurements (Option 752) 3-4 Stopping/Restarting LTE RF over CPRI Mode Click the green CPRI Analysis button on the top of the window or green START button in the bottom right to restart the processing and data acquisition. Figure 3-52.
Page 100 3-4 Stopping/Restarting LTE RF over CPRI Mode Making LTE RF over CPRI Measurements (Option 752) 3-36 PN: 10580-00467 Rev. C MT2780A UG...
Page 101: Chapter 4-Making Pim-Over-Cpri Measurements (Option 754)
Chapter 4 — Making PIM-over-CPRI Measurements (Option 754) Option 754 (requires Option 752) measures the PIM phenomena and Option 755 provides more in-depth analysis (analytics). See “Upgrading IQ Fiber Master” on page 2-11 for information about upgrading to this option. Start the PIM analysis with the 1.Site Editor tab to make sure that the analyzer correctly configures the sensor and correctly analyzes the data from the IQ and baseband streams.
Page 102: Preparing The Site's Details (Site Editor)
4-1 Preparing the Site’s Details (Site Editor) Making PIM-over-CPRI Measurements (Option 754) Preparing the Site’s Details (Site Editor) Refer to Section 3-1 “Preparing the Site’s Details (Site Editor)” on page 3-1. The application needs to know specific parameters for the cell site under test. These details can be entered or created as described in this section.
Page 103: Loading Existing Site Configuration And Roster Files
Making PIM-over-CPRI Measurements (Option 754) 4-1 Preparing the Site’s Details (Site Editor) Loading Existing Site Configuration and Roster Files To test PIM over CPRI measurements follow the steps below: 1. Click 3. Run Tests tab. 2. Click the Load...button next to the Site Config to load the correct si_xxxx.xml file for the current site. 3.
Page 104: Select A Test
4-2 Select a Test Making PIM-over-CPRI Measurements (Option 754) Select a Test When the text or analyzer instructs you to select a test, choose from this list: Figure 5 Select a Test to Run Configuration Check To perform the configuration check follow the steps below: 1.
Page 105 Making PIM-over-CPRI Measurements (Option 754) 4-3 Configuration Check If the config check fails follow the steps below: 1. Click the Fiber Diagram button on the top right, to open the fiber diagram window relevant to the selected test. Figure 4-2. Run: Config Check: Config Check test - Fail Figure 4-3.
Page 106 4-3 Configuration Check Making PIM-over-CPRI Measurements (Option 754) 3. In the fiber diagram click the SFP icon with a red connection to make the SPF LED to flash.. Clicking on the SPF with a red connection on the fiber diagram will cause the SPF LED on the Note IQ Fiber Master to flash, and the red connection in the fiber diagram will also flash.
Page 107: Report
Making PIM-over-CPRI Measurements (Option 754) 4-3 Configuration Check Report You may add the results of a configuration check to the report. To add them, click the Add to Report button. The configuration results are added to the end of the report. See Appendix A, “Reports”...
Page 108: Pim Measurement
4-4 PIM Measurement Making PIM-over-CPRI Measurements (Option 754) PIM Measurement To run a PIM over CPRI measurement follow the steps below: 1. Select an appropriate test scenario under Roster Detail section. 2. Select PIM Level radio button under the Selected Test section. 3.
Page 109 Making PIM-over-CPRI Measurements (Option 754) 4-4 PIM Measurement Figure 4-9. 3. Run Tests tab: PIM Level Measurement Test Results PIM level test results consists of the following parameters: • The Impacted UL/Antenna field column defines the results for each individual antenna (AxC) under test •...
Page 110: Analyzer: Pim Over Cpri
4-5 Analyzer: PIM over CPRI Making PIM-over-CPRI Measurements (Option 754) Analyzer: PIM over CPRI The PIM over CPRI test shows the (wanted) UL and PIM spectra and can be used as a visual indication of PIM impacting the UL carrier. To see the individual uplink spectrum traces with their PIM components, follow the steps below: 1.
Page 111: Main Buttons And Controls
Making PIM-over-CPRI Measurements (Option 754) 4-5 Analyzer: PIM over CPRI Main Buttons and Controls You can see that the Stop button, Review Results, and Save Report buttons are activated (Fiber Diagram is not part of this topic). Click Stop to make data available to the report; click the now-active Add to Report button to add trace data to the report.
Page 112 4-5 Analyzer: PIM over CPRI Making PIM-over-CPRI Measurements (Option 754) Light/Dark Changes the display from colored-traces-on-black (the color scheme in which most of the figures in this publication are depicted) to -on-white. The colors of the remainder of the display are unchanged. Figure 4-13.
Page 113 Making PIM-over-CPRI Measurements (Option 754) 4-5 Analyzer: PIM over CPRI Time-Power/Spectrum These change the display mode between Spectrum (most of the figures in this chapter) and Time-Power. Figure 4-14. Time-Power Display Mode of PIM over CPRI Points Changes the number of points displayed from several options, with 1 k the default (with a dot showing which option is selected).
Page 114 4-5 Analyzer: PIM over CPRI Making PIM-over-CPRI Measurements (Option 754) AutoScale/Scaling These change the trace display regardless of what mode it is in: • AutoScale – Accommodates all of the data points. (Some data might not be displayed in this mode.) •...
Page 115: Pim Location, Distance, And Calibration
Making PIM-over-CPRI Measurements (Option 754) 4-6 PIM Location, Distance, and Calibration PIM Location, Distance, and Calibration Introduction To enable PIM location measuring follow the steps below: 1. Perform the config check and a PIM Level tests of the selected roster detail. If the tests detect PIM, it enables the PIM Location radio button.
Page 116 4-6 PIM Location, Distance, and Calibration Making PIM-over-CPRI Measurements (Option 754) Figure 4-17. PIM Location tab: Live PIM Location- Uncalibrated 4-16 PN: 10580-00467 Rev. C MT2780A UG...
Page 117: Pim Calibration
Making PIM-over-CPRI Measurements (Option 754) 4-6 PIM Location, Distance, and Calibration PIM Calibration 1. The software will select the antenna with the strongest PIM measurement by default. The PIM level is normalized to zero and a well-defined peak will be evident for a loud PIM source. The initial measurement is uncalibrated and will include any delay introduced by the RRH, filters and cabling etc.
Page 118 4-6 PIM Location, Distance, and Calibration Making PIM-over-CPRI Measurements (Option 754) The calibrated data is shown as the red trace, the individual live trace is shown as a blue trace and the average of all the completed traces is shown as the green trace. Figure 4-21.
Page 119 Making PIM-over-CPRI Measurements (Option 754) 4-6 PIM Location, Distance, and Calibration 6. Click Add to Report to add the revised PIM Location display to the report. The power delay profile is shown, with the position along the x-axis of the peak indicating the distance (given free space propagation) to the dominant PIM source.
Page 120: Auxiliary Pim Location Information
4-6 PIM Location, Distance, and Calibration Making PIM-over-CPRI Measurements (Option 754) Auxiliary PIM Location Information The figures in this section show various states of the PIM Level testing results. Figure 4-24. PIM Level Test Results: No PIM The figure below shows a PIM failure (PIM found) and shows that PIM Location is activated. Figure 4-25.
Page 121 Making PIM-over-CPRI Measurements (Option 754) 4-6 PIM Location, Distance, and Calibration Figure 4-26. Selecting PIM Location Test MT2780A UG PN: 10580-00467 Rev. C 4-21...
Page 122 4-6 PIM Location, Distance, and Calibration Making PIM-over-CPRI Measurements (Option 754) 4-22 PN: 10580-00467 Rev. C MT2780A UG...
Page 123: Chapter 5-Pim Analytics (Option 755)
Chapter 5 — PIM Analytics (Option 755) Option 755 (requires Option 752 and 754) provides deeper analysis for the PIM measurements. See “Upgrading IQ Fiber Master” on page 2-11 for information about upgrading to this option. PIM vs Time (Long-term Monitoring) PIM vs Time tab shows PIM level against time for all antenna ports that are measuring PIM.
Page 124: Events
5-1 PIM vs Time (Long-term Monitoring) PIM Analytics (Option 755) Events... An events log is created and can be saved as a CSV file. Click Events... button to display the report, and click Save... button to save the report. (The report is saved independently of the PIM report.) Figure 5-2.
Page 125: Clear
PIM Analytics (Option 755) 5-1 PIM vs Time (Long-term Monitoring) Figure 5-3. PIM vs Time active buttons Clear Clears the graph of all data and picks up recording from that moment. Load File... Loads a saved file for replaying. Save File... Saves data to a file for replaying later.
Page 126: Pim Distribution
5-2 PIM Distribution PIM Analytics (Option 755) PIM Distribution The PIM Distribution tab shows a CDF plot depicting the percentage of measurements that exceed the defined PIM level threshold, in dBm, for each antenna port under test. Figure 5-4. PIM Distribution tab PN: 10580-00467 Rev.
Page 127: Pim Daily
PIM Analytics (Option 755) 5-3 PIM Daily PIM Daily The PIM Daily tab shows a histogram, over a 24-hour period, for each antenna that has PIM. A summary of maximum and minimum PIM with duration is shown at the top left of the graph. Figure 5-5.
Page 128: Heat Map
5-4 Heat Map PIM Analytics (Option 755) Heat Map The heat map represents the relative contribution (in dB) of each transmitting antenna port to the total measured PIM power. Figure 5-6. Heat Map tab PN: 10580-00467 Rev. C MT2780A UG...
Page 129 PIM Analytics (Option 755) 5-4 Heat Map Click Interpret Heatmap button to view different scenarios and descriptions of the possible effects of how individual transmit ports can affect individual receive ports due to PIM. It can be used to complement the PIM Location measurement.
Page 130 5-4 Heat Map PIM Analytics (Option 755) PN: 10580-00467 Rev. C MT2780A UG...
Page 131: Appendix A-Reports
Appendix A — Reports PIM over CPRI Reports View the report at any time by clicking Review Results button. The reports for PIM are not automatically saved or written to a PDF format. Click the Add to Report button when an action completes to write its results to the report.
Page 132: Report Header
A-1 PIM over CPRI Reports Reports Report Header The report header contains the Site, Operator, and Instrument details. Note the footer -End of PIM Report- which marks the last entry of the report. Figure A-3. Report Header--Online Version From the online version, you can save, preview, and print the PDF version. PN: 10580-00467 Rev.
Page 133: Check Configuration
Reports A-1 PIM over CPRI Reports Check Configuration When a Config Check is performed prior to a PIM over CPRI test, the Results pane of the Run Tests tab display the results (which can be detailed or summarized). Click the Add to Report button to add Config Check results to the end of the report.
Page 134: Pim Level
A-1 PIM over CPRI Reports Reports PIM Level After a PIM Level (PIM over CPRI) test is initiated, click Add to Report to write all of its results to the report. Note the time-stamp right after the PIM Level heading. Each time the Add to Report button is clicked a new PIM Level heading and data are added to the report.
Page 135: Pim Vs. Time
Reports A-1 PIM over CPRI Reports PIM vs. Time A PIM vs. Time report provides data about when a PIM occurs on the 24-hour clock. To get a PIM-vs-Time report, 1. Run the PIM Level test. 2. Choose either a or b: a.
Page 136: Pim Distribution
A-1 PIM over CPRI Reports Reports PIM Distribution The PIM distribution tab shows all the PIM sources relative to the threshold. To view a PIM Distribution: 1. Run the PIM Level test. 2. Choose either a or b: a. Click Add to Report and scroll down to the Long Term Monitor figure. b.
Page 137: Pim Daily (Long-Term Monitoring
Reports A-1 PIM over CPRI Reports PIM Daily (Long-term Monitoring) To get a meaningful PIM Daily report, the PIM Level test must run long enough. Figure A-8. PIM Report: Daily (Long-term) Monitoring The graph covers a 24-hour period. MT2780A UG PN: 10580-00467 Rev.
Page 138: Heat Map
A-1 PIM over CPRI Reports Reports Heat Map The heat map is most useful for antennas that fail the PIM test. The report contains the heat map matrix with summaries. Figure A-9. PIM Report: Heat Map PIM Location PIM location is not included in the prepared report. See“PIM Location, Distance, and Calibration”...
Page 139: Lte Rf Over Cpri
Reports A-2 LTE RF over CPRI LTE RF over CPRI Here is a typical LTE RF over CPRI display. Figure A-10. LTE RF over CPRI display This view cannot be added to PIM report through the app; however, the image may be exported to a PDF file. You can zoom in on the x-axis to view more detail at a frequency, either click and drag or use the scroll wheel to adjust the zoom To exit double-click anywhere in the trace area (or use the scroll wheel).
Page 140 A-2 LTE RF over CPRI Reports A-10 PN: 10580-00467 Rev. C MT2780A UG...
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This manual is also suitable for:

Iq fiber master mt2780a-0752 Iq fiber master mt2780a-0754 Iq fiber master mt2780a-0755

Anritsu IQ Fiber Master MT2780A User Manual

Chapter 1-General Information

Chapter 2-Instrument Overview

Chapter 3-Making LTE RF over CPRI Measurements (Option 752)

Chapter 4-Making PIM-Over-CPRI Measurements (Option 754)

Chapter 5-PIM Analytics (Option 755)

Appendix A-Reports

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