PIM Testers - Rent & Buy Certified Used

Passive Intermodulation, or PIM, is caused by components like cable assemblies, connectors, filters, duplexers and similar items that are in the path from the RF amplifier to the antenna. In the presence of a high-power signal, components generate PIM interference that can degrade cellular and other RF system performance, impacting quality of service (QoS) and quality of experience (QoE). With the rollout of 5G services picking up pace, the proliferation of cell sites has brought the problem into sharper focus. 

Finding PIM is not an easy task. High-power test equipment is needed to generate test signals to simulate real-world conditions and create PIM responses which can be traced. Specialised PIM testers recreate these conditions helping engineers pinpoint elusive PIM quickly and effectively in communication systems.  

With a PIM tester, also known as a PIM analyzer, you can identify PIM in cables, antenna systems, connectors, and other devices. They work by generating two powerful signals into the device or system under test. If these test signals encounter a non-linear junction, PIM frequencies will be generated in all directions from the problem point. The analyzer makes an accurate measurement of the PIM from these signals and displays the information to the test operator.  

Our comprehensive range of PIM testing solutions includes the market-leading Anritsu PIM testers and Kaelus PIM testers. All are available to source new through a variety of financial solutions or to purchase used, backed by our 23-step Certified Pre-Owned quality checking process. We also offer PIM test rentals with a well-stocked inventory available now. Rental is the ideal solution for PIM testing, with affordable monthly rates and the flexibility to meet project and contract demands. 

Frequently Asked Questions

What is PIM and what causes it? 

Passive Intermodulation is a problem where multiple frequencies interact in a non-linear junction (sometimes a result of contamination, loose mechanical junctions, or poorly prepared connections), leading to the creation of new signals at different frequencies. These interfere with the original signals, causing problems such as increased noise, a reduction in signal quality, and even sometimes cause the system to fail. This can be a problem in cellular systems which are subject to high RF power levels and can be detrimental to the performance and capacity of the system.  

Do I need specialised equipment for testing PIM levels? 

Although it's possible to carry out PIM testing using a combination of a signal generator, spectrum analyzer, and some other components, specialised PIM testers are preferable for testing cables and antennas in the field. These instruments are designed to be robust and portable with easy-to-use interfaces and automated test data collection features. 

What are the best PIM analyzer manufacturers? 

Anritsu is one of the leading manufacturers of PIM analyzers, offering a range of top-of-the-line portable instruments for all your PIM measurement needs. Designed for use in a range of environments, Anritsu PIM analyzers can be used in the field or lab. Kaelus is another reputable manufacturer that is known for their PIM analyzers which are highly reliable and accurate, while another excellent brand for your PIM testing needs is Rosenberger which offers great ease of use.  

What is the frequency range of PIM testing? 

While the frequency range of PIM testing depends on the communication system being tested, a typical range for cellular networks may be 700 MHz to 2700 MHz. However, some PIM test devices may measure a wider range.  

What's the difference between PIM testing and line sweeping? 

Line sweeping and PIM testing are two different types of tests that are often undertaken for communications systems including antennas and more. While PIM testing looks specifically for PIM problems within the device or system, line sweeping instead measures the reflections and signal losses within a transmission system.  

Is it better to rent or buy a PIM analyzer? 

When choosing whether to rent or buy PIM test equipment, it's important to consider your budget and needs. If you only need the instrument for a short period of time, renting is a great way to maintain flexibility and keep costs down. If you need a long-term PIM solution, rental can also be a good option with low-cost, long-term rates available. You might also want to consider buying a used analyzer, which is often a more affordable solution for your projects.  

Why buy a certified pre-owned PIM analyzer? 

Buying certified pre-owned PIM equipment is a great way to access top-of-the-range instruments from leading manufacturers at a fraction of their regular price. All our certified pre-owned products have undergone rigorous testing to ensure quality and accuracy. We only choose top-quality instruments from brands we trust to ensure that you never have to compromise on quality. Furthermore, we offer a one-year warranty and a 14-day money-back guarantee for your peace of mind.