The EnGenius SN - UL - AK20L external antenna kit is engineered to connect seamlessly with base stations for DuraFon or FreeStyl phone systems, providing an optimal radiation pattern for superior outdoor coverage. With a gain of 6 dBi, this antenna is perfect for extending the reach of your communication systems. It features a robust construction with brass and beryllium copper components, ensuring durability in various weather conditions. The included 65 - foot (20 m) low - loss LMR - 400 coaxial cable minimizes signal attenuation, allowing for effective installation in the most advantageous locations. The antenna operates within a frequency range of 902 to 928 MHz and is designed for ceiling mounting or outdoor placement, making it versatile for different environments.