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PIM Shield RF Barrier Materials

Passive Intermodulation (PIM) arises when there are two or more signals present in a passive non-linear device. Interference caused by PIM decreases a cell's receive sensitivity and can block phone calls completely. Consequently, PIM is a serious issue for cellular providers because it decreases the reliability, data rate, and capacity of their networks. The cell creating the interference can also affect nearby receivers. It can be very challenging to find the source of PIM because it can be caused by internal factors (damaged or loose cables, dirty connectors, etc.) as well as external factors (fences, metal-to-metal contact, rusty bolts, etc.). An on-site PIM test is a measure of linearity and construction quality that needs to be done at or above the original transmitter power levels in order to ensure the test exposes PIM issues. PIM testing in conjunction with line sweeping is an important method for carriers to assure maximum network potential. The PIM test measures system linearity, while sweep testing addresses a return loss measurement that detects impedance.

ConcealFab manufactures radio frequency (RF) barrier materials using their trademarked PIM Shield technology to mitigate PIM in the field. Avalon Test Equipment carries a variety of PIM Shield RF barrier materials that can be used as a permanent or temporary solution, depending on your requirements, by installing over the PIM source and instantly improving site performance.

Purchase PIM Shield RF barrier Materials from Avalon Test Equipment so you can Test With Confidence®.

Do you need to be trained on PIM or sweep? We have classes for PIM fundamentalsexternal PIM, and sweep fundamentals.

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ConcealFab® PIM Tape

PIM Shield™ tape is a rapidly deployable RF barrier able to bond to a wide variety of surfaces including metals, single ply roofing, multiply roofing, concrete, brick, and wood.

ConcealFab® PIM Blanket

ConcealFab’s PIM blankets are temporary RF barriers that can be deployed to help isolate sources of Passive intermodulation (PIM).

ConcealFab PIM Absorber Kit Bundle

The PIM Absorber kit bundle combines the essential components needed for site testing into a single part number.