SLDCOM is a satellite communications system operated by the U.S. National Reconnaissance Office

National Reconnaissance Office

The National Reconnaissance Office , located in Chantilly, Virginia, is one of the 16 U.S. intelligence agencies. It designs, builds, and operates the spy satellites of the United States government.-Mission:...

 and used by the United States armed forces

United States armed forces

The United States Armed Forces are the military forces of the United States. They consist of the Army, Navy, Marine Corps, Air Force, and Coast Guard.The United States has a strong tradition of civilian control of the military...

. The space-based assets of the system were flown as part of the Satellite Launch Dispenser (SLD) hardware on several Titan IV

Titan IV

The Titan IV family of space boosters were used by the U.S. Air Force. They were launched from Cape Canaveral Air Force Station, Florida, and Vandenberg Air Force Base, California. At the time of its introduction, the Titan IV was the "largest unmanned space booster used by the Air Force."The...

 rocket launches which also launched Naval Ocean Surveillance System

Naval Ocean Surveillance System

The Naval Ocean Surveillance System , reportedly also called White Cloud and PARCAE, refers to one or several systems of SIGINT satellites which conducted ELINT for the U.S. Navy beginning in the early 1970s....

 satellites. The SLDCOM system provides bent pipe UHF communications.