Passive Intermodulation (PIM)
Knowledge Hub
PIM Master MW82119B Overview Demonstration
The new PIM Master MW82119B with Site Master option system demonstration video shows the proper operating and testing procedure for the new system and features the newest capabilities.
How to make a PIM over CPRI Measurement on our BTS Master
Watch this step-by-step tutorial on performing PIM over CPRI measurements using the Anritsu BTS Master.
CPRI Cell Site Architecture, Configuration, and Results
Many cellular networks now deploy a distributed architecture where the traditional radio has been split into a baseband unit…or BBU…and remote radio head…the RRH. The BBU and RRH are typically connected with a fiber link conforming to the Common Public Radio Interface or CPRI.
IQ Fiber Master MT2780A – A Novel Way to Investigate PIM Problems via CPRI
The IQ Fiber Master MT2780A is a PIM and RF analyzer with a CPRI-based solution. The IQ Fiber Master MT2780A provides critical PIM diagnosis across multiple bands and sectors using live traffic. This video will give you a brief insight into the offered features and let you experience the measurement capabilities by running offline measurements that are based on reordered IQ data.
PIM Analysis Without Climbing the Tower
A New Testing Methodology for Diagnosing PIM and RF Interference Problems
PIM Hunter Demonstration
The PIM Hunter solution with patent-pending technology allows a test technician to pinpoint the location of external PIM beyond the antenna. By walking along the arc of the DTP distance from the antenna with PIM Hunter™, the technician can pinpoint the source of the PIM typically within a few centimeters.
Passive Intermodulation (PIM) in In-building Distributed Antenna Systems (DAS)
This application note begins with a review of decibel math and insertion loss calculations, followed by a discussion of the impact of insertion loss on PIM performance in distributed antenna systems (DAS).
Pinpointing Sources of PIM on Rooftops and Macro Cell Sites
This application note focuses on finding PIM that is located on a rooftop or tower external to the antenna, also known as PIM hunting. These external PIM sources are much harder to resolve as they require searching over a rooftop or even beyond the edge of the roof.
A New Technique for Measuring Passive Intermodulation Over Fiber Optic Cables
This white paper outlines how PIM over CPRI works and how to get the most of out of this measurement technique. PIM over CPRI is your first step in determining if a site has PIM issues before calling in a PIM mitigation team
Identifying Sources of External PIM
dentifying the location of external PIM sources has been an extremely difficult problem for mobile operators worldwide. With Anritsu’s PIM Hunter™, PIM Master™ and Spectrum Master™ products, operators finally have the tool set required to precisely identify external PIM sources. Once identified, a variety of PIM mitigation techniques can be deployed to reduce PIM levels and improve system performance.
The PIM Source Blog
The goal of PIM Source is to discuss challenges in locating and testing Passive Intermodulation (PIM) in the field, fundamentals of PIM measurements, and methods of preventing and/or eliminating PIM in cellular networks.
PIM Poster
This full colour A1 reference poster describes the fundamentals of PIM and the basics for measuring and locating PIM.
Passive Intermodulation Technology Page
Depth definition of PIM and its causes, PIM testing and best practices for preventing PIM
Passive Intermodulation (PIM) YouTube Playlist
PIM is a form of interference generated by passive components that are normally thought of as linear such as connectors, cable assemblies, filters, and antennas. However, when subjected to the downlink signals at a cell site, these components can generate spurious signals that raise the receiver noise floor and reduce site performance. PIM Master is a specialized test instrument able to measure system linearity and identify fault locations both inside the cable system and beyond the antenna.
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