The U.S. Navy awarded Carlsbad-based ViaSat Inc. a contract that could be worth up to $48.3 million over five years.

Under the indefinite-quantity deal, awarded by SPAWAR and announced June 30, the Navy will procure engineering, technical services and ancillary hardware and software products to sustain and modernize the Joint Ultra High Frequency Military Satellite Communications Network Integrated Control System.

ViaSat must now wait for the Navy to issue delivery orders under the contract.

Work will be done in San Diego.

The contract has a five-year option which would extend work to June 30, 2026. Terms of the option have yet to be negotiated.

The Navy awarded the contract without a competition, since the Pentagon determined that the property or services were available from one or a limited number of responsible sources, and no other type of property or services will satisfy the needs of the agency.

SPAWAR is the U.S. Navy Space and Naval Warfare Systems Command, based in San Diego.