Our Markets
Mission assurance in the most contested environments on Earth.
Precision timing, frequency control, and RF/microwave technologies for electronic warfare, radar, secure communications, and national security programs.
Request Engineering ConsultationModern defense operations depend on timing resilience, not just timing precision.
Modern defense operations depend on precise timing, resilient synchronization, secure communications, and reliable operation in increasingly contested environments. For more than six decades, FEI has supported military, intelligence, aerospace, and national security programs with technologies designed to perform when mission success depends on accuracy, reliability, and resilience.
Operating in contested electromagnetic environments requires more than performance alone. Systems must maintain synchronization, communications, and operational effectiveness in the presence of jamming, spoofing, interference, vibration, temperature extremes, and other mission challenges. From strategic defense programs to tactical battlefield systems, FEI provide the foundation for mission-critical performance in environments where failure is not an option.
Key Applications
Supporting mission-critical operations across demanding environments.

Precision timing
Mission-critical timing references that support coordinated operations across contested and degraded environments.

Frequency control
Stable frequency generation and control for radar, communications, sensing, and other defense systems.

Frequency control
Stable frequency generation and control for radar, communications, sensing, and other defense systems.

Atomic Clocks
Rubidium and atomic timing references that provide accuracy, holdover, and operational resilience.

Microwave technology
Low-noise microwave generation and conversion for electronic warfare, radar, and secure communications.

Radio frequency
RF synthesis, distribution, and receiver technologies for mission-critical defense applications.

Navigation
Resilient positioning, navigation, and timing for GPS-denied and GPS-degraded operations.

Satellite applications
Space-supported timing and frequency technologies for defense and national-security missions.
Core Capabilities
Trusted by defense programs for over six decades.
FEI develops precision timing, frequency control, atomic clock, synchronization, RF/microwave, and navigation technologies that help defense organizations maintain mission assurance across airborne, maritime, ground-based, and space-supported operations. Our technologies support a broad range of applications from strategic defense programs to tactical battlefield systems.
Technologies & Systems
- Atomic clocks & rubidium frequency standards
- Low phase noise oscillators
- RF & microwave frequency synthesizers
- Frequency converters & receivers
- GPS/GNSS timing systems
- Timing distribution systems
- Synchronization systems
- Frequency generation systems

Related to Defense

Supporting defense programs where failure is not an option.
Speak with FEI engineering about your defense timing, frequency control, or RF/microwave requirements.

