The Compass Call system employs offensive counterinformation and electronic attack capabilities in support of U.S. and Coalition tactical air, surface, and special operations forces.

[1] The EC-130J Commando Solo is a modified C-130J Super Hercules used to conduct psychological operations (PSYOP) and civil affairs broadcast missions in the standard AM, FM, HF, TV and military communications bands.

[2] The U.S. Navy's EC-130Q Hercules TACAMO ("Take Charge And Move Out") aircraft was a land-based naval aviation platform that served as a SIOP strategic communications link aircraft for the U.S. Navy's Fleet Ballistic Missile (FBM) submarine force and as a backup communications link for the USAF manned strategic bomber and intercontinental ballistic missile forces.

in December 2020 (Fiscal Year 2021), the US Navy announced that it awarded a contract to Lockheed Martin for the purchase the C-130J-30 Hercules as testbed for the TACAMO mission [3] The aircraft selection represents a return to the C-130 platform by the Navy, which for years used the EC-130Q (an older variant despite the higher letter) for the TACAMO mission from 1963 until 1993.

With the formation of Air Force Special Operations Command, the mission was transferred to AFSOC and redesignated Commando Solo.

Included in these mods are enhanced navigation systems, self-protection equipment, and the capability of broadcasting color television on a multitude of worldwide standards throughout the TV VHF/UHF ranges.

In September 2017, the Air Force announced that L3 Technologies will serve as the lead systems integrator for a future Compass Call aircraft based on the Gulfstream G550 business jet.

In 1990, the EC-130E joined the newly formed Air Force Special Operations Command (AFSOC) and has since been designated Commando Solo, with no change in mission.

More recently, in 1994, the EC-130E Commando Solo was used to broadcast radio and television messages to the citizens and leaders of Haiti during Operation Uphold Democracy.

President Aristide was featured on the broadcasts which contributed significantly to the orderly transition from military rule to democracy.

The aircraft also broadcast announcements of where earthquake victims can go for food and aid, news from Voice of America, and instructions on hygiene procedures to prevent disease.