• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Electrical Engineering News and Products

Electronics Engineering Resources, Articles, Forums, Tear Down Videos and Technical Electronics How-To's

  • Products / Components
    • Analog ICs
    • Connectors
    • Microcontrollers
    • Power Electronics
    • Sensors
    • Test and Measurement
    • Wire / Cable
  • Applications
    • Automotive
    • Industrial
    • IoT
    • Medical
    • Telecommunications
    • Wearables
    • Wireless
  • Resources
    • Covid-19
    • DesignFast
    • Ebooks / Tech Tips
    • EE Forums
      • EDABoard.com
      • Electro-Tech-Online.com
    • FAQs
    • 2020 LEAP Awards
    • Oscilloscope Product Finder
    • Podcasts
    • Webinars
    • White Papers
  • Videos
    • Teardown Videos
  • Lee’s Teardowns
    • Teardown Videos
  • Learning Center
  • 5G
  • Women in Engineering

Instrument runs true PIM analysis over fiber for IQ data

March 31, 2020 By Lee Teschler

The IQ Fiber Master MT2780A multi-port CPRI-based RF and PIM (passive intermodulation) analyzer that is the first instrument to perform true PIM analysis over fiber and present RF spectrum results derived from IQ data. The MT2780A reduces test costs and time by providing field engineers, field technicians, and third-party contractors with a single instrument to conduct RF interference measurements and PIM troubleshooting on LTE-based systems using CPRI front haul infrastructure.

The IQ Fiber Master leverages patented PIM-over-CPRI and RF-over-CPRI measurement IQ-FiberMastercapabilities that allow tests to be conducted on the ground, significantly reducing tower climbs. Field engineers and technicians can use the MT2780A to scan the uplink RF signals of a remote radio head (RRH) for in-band interference while simultaneously conducting PIM over CPRI measurements. Supporting all Tier 1 LTE base station radio manufacturers, the single instrument solution can determine if KPIs are being affected by interference or PIM.

Analyzing CPRI IQ data allows users to view a radio’s uplink spectrum for interference troubleshooting. The IQ Fiber Master measures PIM over CPRI with four SFP inputs, providing the ability to compare multiple bands and sectors, as well. Measurements are performed on live cell tower traffic signals, providing a unique method to conduct real-world testing that results in improved accuracy and no system downtime for test. As measurements are derived from baseband IQ data, the IQ Fiber Master can make measurements on any frequency RRH, or combination of frequencies of the RRH, providing a very cost-effective solution.

The IQ Fiber Master analysis results provide a full PIM diagnosis. It will report the presence of PIM, whether it is internal or external, and the distance to PIM. In addition, the unique and proprietary PIM heatmap quickly displays which transmitter contributes the most PIM. This collective diagnosis data shortens the entire PIM hunting exercise by directing field engineers and technicians to the most probable location and cause of the issues.

For on-going monitoring, IQ Fiber Master can be installed at cell sites to conduct long-term PIM over CPRI measurements and provide analytical information. PIM-related problems, such as intermittent PIM occurring on specific days and times or changes in PIM due to base station load during the day, can be measured in this configuration. Reports of the measurements can be generated and used for comparative analysis.

The IQ Fiber Master MT2780A also serves as a band-less PIM testing solution that can be a carrier’s first test tool when identifying an interference problem and its location. This helps to determine the most efficient course of action to follow.

All LTE bands are supported by IQ Fiber Master MT2780A. Extremely compact and lightweight, it weighs only 1 kg (2.2 lb) and measures 185x133x55 mm (2.1×7.3×5.2 in), so it fits in the palm of the user’s hand.

Anritsu Co., www.anritsu.com

Filed Under: Test and Measurement Tips Tagged With: anritsucompany

Primary Sidebar

EE Training Center Classrooms

“ee

“ee

“ee

“ee

Featured Resources

  • NEW! EE World Online Learning Center
  • CUI Devices – CUI Insights Blog
  • EE Classroom: Power Delivery
  • EE Classroom: Building Automation
  • EE Classroom: Aerospace & Defense
  • EE Classroom: Grid Infrastructure

Autonomous & Connected Vehicles 2019


RSS Current EDABoard.com discussions

  • Rippe current rating of aluminium electrolytic capacitor is very low.
  • Radiated emissions problems
  • Same geometry but slightly different results
  • Mic preamp and Tx on MAX260x
  • Security for IoT

RSS Current Electro-Tech-Online.com Discussions

  • new to Ardunio but trying to compile
  • Security for IoT
  • Can this rail fault cause the oscillator to give bad signal ?
  • watchdog in stop mode
  • First time using MOSFETs project

Oscilloscopes Product Finder

Follow EE World on Twitter

Tweets by @EEWorldOnline

Footer

EE World Online

EE WORLD ONLINE NETWORK

  • DesignFast
  • EDABoard Forums
  • Electro-Tech-Online Forums
  • Microcontroller Tips
  • Analog IC Tips
  • Connector Tips
  • Engineer's Garage
  • Power Electronic Tips
  • Sensor Tips
  • Test and Measurement Tips
  • Wire & Cable Tips
  • 5G Technology World

EE WORLD ONLINE

  • Subscribe to our newsletter
  • Lee's teardown videos
  • Advertise with us
  • Contact us
  • About Us
Follow us on TwitterAdd us on FacebookFollow us on YouTube Add us on Instagram

Copyright © 2021 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy