The U.S. Navy said on July 30 that it awarded Exelis, now part of Harris Corp., a contract to deliver 46 airborne radio signal jammers used in F/A-18 Hornet aircraft.

According to the contractor, the electronics combine sensitive digital receivers and active countermeasures to protect aircraft from radio frequency threats — namely, air defense radars and guided missiles.

The contract also calls for the repair of test assets and field support.

Some 11 percent of the recently awarded contract work will be done in San Diego; the majority will be performed in San Jose and New Jersey. The entire $97.3 million deal lasts through December 2017. Harris (NYSE: HRS) acquired Exelis, the former defense business of ITT, in May. NAVAIR, the Naval Air Systems Command of Patuxent River, N.J., awarded the sole-source deal.