![]() The receiver should not be influenced by test transmitted signals (residual PIM), and its sensitivity should be at least 10 dB lower than the defined PIM limits for the BTS components. It is also important to verify the test equipment itself. Dirty or damaged connectors also generate PIM, so make sure that all connectors – on the instrument, cables, and adapters – are clean and intact. After reaching that maximum number, they may become a PIM source. ![]() RF connectors have a specific number of mating cycles, which refers to the number of times a physical connector can connect (mate) to its counterpart. We want to measure PIM on the BTS, not PIM generated in our test setup. Why take the time to verify your equipment? The simple answer: the test equipment and related accessories needed for testing are also subject to passive intermodulation.
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