Low PIM Testing Components

SPINNER long ago recognized that passive intermodulation (PIM) is a problem that commonly afflicts mobile communications, and ever since has made a point of developing products for this sector that help reduce PIM. We have also created low PIM testing components. The applicable IEC standard requires their inherent PIM to be 10 dB better than the devices they are used to test.


Based on our decades of experience in developing low PIM products, we offer both outstanding testing components and pioneering products that reliably support our customers in automating their test processes. They confer clear benefits: significant time and cost savings, both in production and in final testing and inspection.


Download SPINNER PIM testing portfolio brochure (4 MB)

SPINNER Low PIM Switching Matrix

How can you speed up testing in production, for example of mobile communications antennas or filters?
The answer is simple: with the new SPINNER Low PIM Switching Matrix!


It lets you easily boost your output by concurrently measuring PIM and VSWR on separate test paths. And that’s not all: thanks to the exceptional reliability of every measurement, you avoid having to frequently repeat tests to compensate for uncertain results. This dramatically reduces the number of required test chambers and systems, allowing you to slash your costs by working on less space with less testing equipment while also cutting expenditures for maintenance and personnel. With today’s accelerating production cycles and dwindling profit margins, this can give you a crucial competitive edge.

Configurations from 4 inputs and 4 outputs all the way to 16 inputs and 16 outputs can be supplied. Integrated controllers and an Ethernet or USB port also enable remote operation or make it easy for you to centrally capture and store measurement data.

SPINNER MatrixSPINNER Low PIM Switching Matrix

RF Test: Switching between VSWR and PIM using SPINNER's low PIM Switch/EasyDock

SPINNER EasyDock – Low PIM Testing Adaptor

Conventional testing adaptors with push-pull mechanisms are designed for manual use. They do not compensate for shifts in position and are therefore unsuited for automatic testing.

This is where the advantages of the SPINNER EasyDock come into play. This spring-mounted adaptor accommodates shifts in all planes and directions when connected to a device under test (DUT) and is therefore excellently suited for automatic testing. Its use greatly slashes the costs of production and final inspection.

The SPINNER EasyDock is available in three different versions with 4.3-10 and 7-16 connectors:

SPINNER EasyDocksSPINNER EasyDocks: non-locking, manually-lockable, mechanically lockable (f.l.t.r.)

Convince yourself of the benefits of EasyDock

Lockable SPINNER EasyDock - Low PIM Push Pull Measurement Adaptor

SPINNER EasyDock test cases featuring 4.3-10, 7-16 and PIM

SPINNER EasyDock - RF Push-Pull Adaptor

SPINNER EasyDock business considerations

Low PIM Switches

In many testing situations, it is necessary to frequently switch between different measurements, e.g. PIM and VSWR. The SPINNER low PIM switch is a double-pole, double-throw (DPDT) switch and therefore excellent suited for applications of this type. It has excellent PIM properties and switches so precisely that it can even be reliably used in calibrated sequential test setups.

It is particularly invaluable in complex configurations for testing multiple ports, used either singly or in programmable matrices. It saves time and therefore also costs when testing quadruplexers or antennas up to 90%.

The SPINNER low PIM switch is available with 4.3-10 or 7-16 connector.


RF Test: Switching between VSWR and PIM using SPINNER's low PIM Switch/EasyDock

Low PIM Test Cables

Cables are among the most-used components in testing labs. SPINNER has developed exceptionally good low PIM SF 3/8” and SF 1/2” test cables. Extra-long anti-kink sleeves make them highly robust and long-lasting. Both ends can be flexibly terminated, also with right-angle connectors or fixed sockets. For PIM measurements, SPINNER recommends 4.3-10 and 7-16 connectors.

SPINNER Low PIM Measurement CablesSPINNER Low PIM Test Cables

4.3-10 and 7-16 LOW PIM Measurement Cables – PIM Test at SPINNER


SPINNER Low PIM Rotary Joints

Cables used in testing situations are often subjected to significant stresses and strain. When they are twisted, however, it is usually hard to compensate for the forces involved and they wear out faster as a result. SPINNER low PIM rotary joints are the solution. Inserted in the connection between a testing device and a device under test (DUT), they rotate to prevent damage to the cable without affecting the test results.

A classic example is antenna testing. This involves placing a cabled antenna in a test chamber and measuring it while turning. The use of SPINNER low PIM rotary joints relieves the stresses on the test cable, thus greatly extending its service life.

The SPINNER low PIM rotary joint is available with 4.3-10 or 7-16 connectors.

SPINNER Low PIM Rotary JointSPINNER Low PIM Rotary Joints

PIM Test of SPINNER LOW PIM Rotary Joint


Every PIM test setup is terminated with a load, which ideally should be free of intermodulation to avoid distorting the test results. That, at least, is the theory. In actual practice, many loads touted as “low PIM” don’t perform as intended. The SPINNER low PIM load is a shining exception, boasting outstanding PIM values as low as -170 dBc.



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