ASTECSAdvanced Submarine Tactical ESM Combat System
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According to company sources, its ability to provide electromagnetic surveillance on the ocean surface is comparable to, and complementary with, the traditional submarine undersea acoustic-surveillance mission -- key to meeting today's battlegroup's needs for operational support, which may require a submarine to operate as effectively near the ocean surface as it has traditionally done while deeply submerged (for more on the ASTECS, see "Submarine [C.
The Navy issued the production contract after successful testing and acceptance of two earlier versions of the ASTECS at the beginning of 1999.