The PIM 21 is a portable Passive Intermodulation (PIM) Test Set that detects intermodulation distortion in components that are used in base stations, in-building installations and other wireless systems. This test set has adjustable customer specific test frequencies to match power to application. It is self-calibrating and has a PIM sensitivity of -153 dBc @ 80 MHz. The PIM 21 is battery operated and is available in a small portable rugged, waterproof case.