[2] The mounted radar is capable of tracking ships, planes and missiles up to 190-250 mi (300-400 km), while at an altitude of 20,000 ft (6,100 m).

Four are permanently equipped with the Erieye active electronically scanned array (AESA) early warning radar.

In July 2006, Saab was awarded a contract to upgrade two of the Swedish Air Force's S 100B aircraft for surveillance missions, and for deployment in multi-national operations.

In November 2007, Thailand announced the intention to buy two S 100B AEW aircraft from the Swedish Air Force.

On May 29th, 2024, the Swedish Ministry of Defense announced that two[4] Airborne Surveillance and Control aircraft (ASC 890) will be sent to Ukraine, in the 16th military support package.