Spanish firm Indra Sistemas has completed the development and certification of a new Ka-band submarine satellite communication terminal designed to deliver higher transmission speeds, enhancing operational capabilities.
Unlike traditional X-band (military) and Ku-band (civilian) systems, the TSUB-40Ka operates in the higher-frequency Ka-band of the microwave spectrum, enabling broadband services with data rates exceeding several megabits per second.
The shorter wavelengths associated with higher frequencies allow for proportionally smaller antennas, making the system well-suited for space-constrained platforms such as submarines.
The adoption of Ka-band terminals offers a significant operational advantage by combining military standards compliance (MIL-STD/STANAG) with enhanced connectivity capabilities.
To Operate With Spain’s Next-Gen Satellite
The TSUB-40Ka has been certified to operate with the SpainSat NG satellite, ensuring secure, high-capacity connectivity based on sovereign infrastructure.
The satellite operates across X-band, military Ka-band, and UHF frequencies, supporting secure, long-range communications for tactical operations.
“The TSUB‑40Ka terminal enables submarine platforms to take advantage of the advanced capabilities of the new Ka‑band satellite systems, such as SpainSat NG, expanding secure connectivity options for governmental and military operations,” the company stated.
“These capabilities help enhance communications resilience against interference, cyberattacks, and adverse conditions in the space environment.”
