The CI 420-490 iridium antenna is Iridium-frequency-only allowing its narrow-band tuning to provide optimum Iridium performance. This antenna meets and earned the new FAA TSO C159a for satellite communication. Designed for both fixed wing and rotorcraft airframes, and operating with both Iridium-based voice and data communications devices, the single channel aviation patch provides continuous coverage from 1616.0 MHz to 1626.5 MHz for excellent Iridium operation.