The Submarine High-Data-Rate Satellite Communication System ensures protected multimedia SATCOM connectivity for Virginia-class submarines while at periscope depth.

Raytheon’s Submarine High-Data-Rate (Sub HDR) multiband satellite communication (SATCOM) systems for the new Virginia Class submarine connects submariners to the above-sea world by providing HDR, multiband SATCOM capability. The Sub HDR is deployed by raising a mast-mounted antenna above the ocean's surface while the boat remains submerged at periscope depth.