Raytheon provides SubHDR antenna communication methods for US Navy submarines


According to a contract published by the US Department of Defense (DoD) on December 3, 2020, the American company Raytheon Co., Marlborough, Massachusetts, has been awarded a fixed price contract for 23 SubHDR high data rate antennas (SubHDR) for 90,264. $ 588 US Navy systems. The SubHDR antenna system is used to provide high capacity communication for submarines.
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The Ohio-class ballistic missile submarine USS Tennessee (SSBN 734) (Blue) is returning to the homeport of the Kings Bay, Georgia Navy submarine base after a strategic deterrent patrol. (Image source US Navy)

Sub HDR connects submarines to the Global Broadcast Service, the Milstar Satellite Constellation and the Defense Satellite Communication System through a unique mast antenna that connects them to the world above the sea.

Sub HDR offers submarines for the first time multiband SATCOM functions with a high data rate. The system allows seafarers to send and receive mission critical information by raising a mast directly above the ocean surface while the ship is submerged at periscope depth. Sub HDR operates through military satellites, allowing underwater forces to fully participate in coordinated operations of the Fleet Combat Group and the joint task force network. The mast-mounted SATCOM system transmits secure broadband multimedia, secure and non-secure internet access, voice and data traffic, image and video conferences.

The acquisition of Sub HDR began in 1996 following a competitive sourcing and selection of Raytheon by PEO C4I & Space (US Navy Program Executive Bureau of Command, Control, Communications, Computers, Intelligence and Space). Within 21 months, the system conducted a land based wireless demonstration of its super high frequency (SHF) and extreme high frequency (EHF) multiband satellite tracking and communication capabilities. The multiband SHF and EHF-SATCOM mast was upgraded in 1999 with the Global Broadcast Service (GBS), a Ka-band reception function with a high data rate. Seven systems were manufactured during low-rate initial production (1999), and the system was subsequently tested in August 2000 on the USS Providence SSN 719 submarine.

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