New Anti-Jam Antenna Seen on USAF F-15E Strike Eagle During Epic Fury

Key Takeaways

• CRPA antenna spotted on F-15E during Operation Epic Fury
• DIGAR upgrade uses BAE’s $13 million contract to harden GPS signals
• Integration aligns with Radar Modernization Program and MUOS/SATURN communications
• 99 F-15Es slated for EPAWSS, future F-15EX will include it
• Anti‑jamming capability critical amid rising electronic warfare threats

Pulse Analysis

The appearance of a circular Controlled Reception Pattern Antenna on a Strike Eagle marks the first visible deployment of BAE Systems’ Digital GPS Anti‑jam Receiver (DIGAR) in the field. DIGAR combines multiple antenna elements with digital beam‑forming to filter out hostile jamming and spoofing across GPS, GLONASS, Galileo and BeiDou constellations. By installing the CRPA on the starboard fuselage, the Air Force gives its pilots a resilient navigation backbone, essential for precision strike missions that rely on accurate positioning even under intense electronic attack.

This antenna is part of a broader modernization wave that includes the Radar Modernization Program (RMP), which swapped the legacy APG‑70 for the AESA‑capable APG‑82(V)1, and the rollout of MUOS and SATURN communications suites. Together, these upgrades create a tightly integrated electronic‑warfare envelope: enhanced radar detection, secure high‑capacity satellite communications, and protected navigation. The Air Force’s recent pre‑solicitation to merge MUOS/SATURN with the Eagle Passive/Active Warning and Survivability System (EPAWSS) suggests a converged architecture where the CRPA feeds clean positioning data into advanced threat‑warning algorithms.

Strategically, the anti‑jamming capability addresses a growing vulnerability highlighted by the Ukraine war and recent incidents such as the disappearance of a U.S. MQ‑4C Triton over the Persian Gulf. As adversaries invest heavily in spectrum denial, ensuring that frontline platforms like the F‑15E and its successor, the F‑15EX, can operate unimpeded is vital for power projection and coalition interoperability. The upgrade not only safeguards U.S. air superiority but also extends to partner forces in Japan and South Korea, reinforcing a shared defensive posture against sophisticated electronic threats.