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PIM Master
™
Passive Intermodulation Analyzer
PIM Master™ Overview
PIM Master™ Introduction
Anritsu Company introduces the first battery-operated high power
Passive Intermodulation (PIM) testing solution for the major wireless
standards in use around the world. 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 subject to high RF power levels found in cellular
systems, these devices can generate spurious signals that increase
the receiver noise floor and reduce site performance.
The PIM Master accurately measures PIM performance by injecting
two CW test tones into the antenna feed network and recording the
magnitude of the 3
rd
, 5
th
, or 7
th
order intermodulation products falling
in the receive band of the system. The MW82119A is able to perform
the following measurements enabling test technicians to quickly find
and eliminate PIM problems found at the cell site:
• PIM versus Time
• Swept PIM
• Distance-to-PIM™ (DTP)
• Noise Floor versus Time
The PIM Master’s small size and light weight combined with battery
operation make it the ideal solution for verifying performance at
difficult to access sites such as Remote Radio Head (RRH) installations
or indoor Distributed Antenna Systems (DAS). Performing a PIM test
at these sites often involves a tower climb or carrying the equipment
up a ladder or through small access ports to reach the required point
of test. The enhanced portability of the MW82119A enables high
power PIM testing where required without heavy lifting and without
long extension cords.
The PIM Master includes Anritsu’s patented Distance-to-PIM™
(DTP) technology for accurately determining the location of PIM
faults both inside the feed system as well as beyond the antenna.
This technology becomes critically important for fault finding DAS
installations due to the complexity of the feed system and large
number of RF interconnects. Without DTP, finding and eliminating PIM
requires a process of elimination involving the movement of low PIM
loads in the network until the PIM problem disappears. This process
is not only time consuming, but it also means that good connections
may be opened (and potentially damaged) in the process of locating
PIM problems. Distance-to-PIM allows technicians to quickly and
efficiently locate PIM sources at a site resulting in quicker site repairs
and lower cost.
As with all Anritsu Handheld products, the MW82119A has been
designed and tested to rigorous standards for shock, vibration and
temperature extremes to ensure reliable service in an outdoor
environment.
2 x 40 W Test Capability
Even though the package is small and it is battery operated, the
MW82119A is a high performance PIM test solution allowing operators
to adjust output power from 25 dBm (0.3 Watts) for indoor DAS
testing to 46 dBm (40 Watts) for macro site testing. In both indoor
and outdoor systems, PIM interference is highly dependent on
the power level being transmitted by that system. By matching
the PIM test power level more closely to the actual power level
used at the site, operators will gain a clearer understanding of the
true interference generated by both the RF infrastructure and the
environment where the antenna is placed.
PIM Master MW82119A 40 Watts, Battery-operated
Ideal solution for tower mounted Radio Head installations
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