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PIM Shield™ is a family of RF optimization products developed to greatly reduce external PIM at cell sites. PIM Shield™ creates a barrier to prevent radiated energy from the antenna from reaching external PIM sources. PIM Shields™ are available that attach directly to antennas to suppress near field PIM sources above, below and behind the antenna. Products are also available for rooftop applications to suppress PIM sources in front of the antenna. For more information, please contact ConcealFab customer service.