Boeing is a launching a two-year, roughly $37 million program to develop an anti-spoofing and anti-jamming capability for the Joint Direct Attack Munition (JDAM), Air Force acquisition officials told The Daily Feb. 11.

The Air Force has a directive requiring all of its Global Positioning System-aided precision weapons to be equipped with an anti-jamming antenna and the Selective Availability Anti-Spoof Module (SASSM). First fielded in the 1998 Kosovo air campaign, the JDAM stockpile has operated under a waiver until such systems are available.

The Air Armament Center here signed a contract with Boeing late on Feb. 10, said Richard Walley, JDAM's program director. The deal includes developing and testing a combination of an anti-jam GPS antenna and a SASSM module in each JDAM tailkit.

Development already is underway for the new antenna. Boeing's Phantom Works has early designs for a stronger GPS receiver for its JDAM munition. The Conventional Air Launch Cruise Missile also has used a JDAM as a surrogate testing device for its own anti-jamming antenna.