Compass Call

The Compass Call program is a vital part of the Air Force's airborne electromagnetic attack capabilities, focusing on command and control warfare and information operations. Its primary objective is to disrupt adversary use of the electromagnetic spectrum, thereby enhancing the effectiveness of U.S. military operations. The system is designed to be adaptable, allowing for continuous modernization to keep pace with rapid advancements in electromagnetic attack techniques and technologies.

A key goal of the program is transitioning from the legacy EC-130H airframe to the more advanced EA-37B airframe. This involves re-hosting mission capabilities onto a commercial derivative G550 aircraft, which will undergo modifications to accommodate Prime Mission Equipment (PME) and antenna arrays. The EA-37B platform aims to enhance operational altitude and standoff distances while maintaining upgraded capabilities from the EC-130H fleet, extending the longevity and effectiveness of Compass Call's capabilities.

The program emphasizes continuous development and integration of new technologies through a Baseline upgrade strategy. Current efforts include advancing electronic attack capabilities, expanding frequency coverage, and integrating agile software frameworks like System-Wide Open Reconfigurable Dynamic Architecture (SWORD-A). Future baselines will focus on improving external communications systems to enhance connectivity across the battlespace. These upgrades are supported by a rapid development process that includes technology refresh initiatives such as open architectures and software-defined radios.

In FY2025, activities include continued test and evaluation of Baseline 3 (BL3), development activities for Baseline 4 (BL4), and maturation of advanced electromagnetic attack technologies. The program also supports innovation through studies, analyses, and quick reaction capability prototypes to accelerate technology transition and insertion. Additionally, an upgraded Software Integration Lab (SIL) will facilitate advanced testing capabilities, reducing required test time on aircraft and accelerating delivery of new capabilities to warfighters.