SATCOM radios operate in the frequency range of which band and can carry which types of communications?

SATCOM (Satellite Communications) radios primarily operate in the UHF (Ultra High Frequency) band. This band is particularly suited for point-to-point communication over long distances, enabling effective satellite communication. Within this frequency range, SATCOM radios can carry voice and data communications.

Voice communications involve the transmission of spoken messages, which can include two-way voice conversations and data links for operational communication. The data communications aspect allows for the transfer of information such as telemetry, message traffic, and data link services that support various aircraft systems.

The UHF band is advantageous due to its propagation characteristics and ability to penetrate various atmospheric conditions, making it ideal for air-to-ground and inter-satellite communication as well. This reliability is critical in aviation, where consistent communication is paramount for safety and operational efficiency. The other frequency ranges and communication types listed in the choices do not align with the established operational capabilities and frequency ranges of SATCOM systems.