Understanding the best PIM test method

Comparing the two main PIM measurement methods to assure mobile base station performance.

Passive Intermodulation (PIM) can have a significant effect on overall base station performance and efficiency. With more spectrum bands in use, with more carriers, and with increases in antenna sharing, the potential for greater PIM increases.

That means that being able to test for PIM, without altering the conditions in which the base station will operate, is critical.

There is debate in the industry about which PIM measurement technique is preferable – Continuous Wave or Low Duty Cycle. This paper examines the two measurement techniques in detail, and presents real world measurements from PIM standards to determine the capabilities of each test model.

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