RF Shield Kit for Ubiquiti AM-5G17 Sector Antenna, RF Armor USK905- Designed for the Ubiquiti Networks MIMO gear product line, RF Armor airMax Sector Shield Kits reduce the front-to-back noise ratio, eliminate co-location interference and greatly reduce foreign/hostile interference. While protecting the radio and jumper cables from the elements, the carrier class RF shielding allows for better channel planning and increased performance by providing a lower noise floor with higher sustainable air rates and fewer errors. Fits the following Ubiquiti antennas: AM-5G17 Model USK905 by RF Armor