Space-Qualified Atomic Clocks
Rubidium Atomic Frequency Standards (RAFS) for satellite payloads. At the heart of GPS III. Error of one billionth of a second per day.
PRECISION TIMING · SINCE 1961
Precision timing and frequency standards for defense and space. Since 1961.
US-based manufacturer of rubidium atomic frequency standards, GPS payload timing, APNT solutions, and synchronization systems for defense, aerospace, and government programs.
US Manufacturer|NASDAQ: FEIM|Trusted DoD Supplier Since 1961
NASDAQ: FEIM
LIVE
$69.74+1.01%
Learn More
Defense Timing & Synchronization
Precision timing and synchronization for defense platforms. Core C5ISR and JADC2 synchronization across all military services.
Assured PNT (APNT)
Long-holdover clock technology for GPS-denied environments. Designed for stationary platforms to high-dynamic aircraft.
Microwave Modules & Subsystems
RF modules up to 67 GHz for Electronic Warfare, Radar, SIGINT, and 5G applications.
GPS Reference Systems
GPS-based timing and frequency systems. Civil and crypto-secured military signals for mission-critical applications.
Network Synchronization
IEEE 1588 (PTP), NTP, Synchronous Ethernet, and DOCSIS timing. For telecom carriers, packet networks, and 5G densification.
Looking for a qualified timing supplier for your program?
Talk to FEI procurement. We support DoD, defense primes, government agencies, and commercial space.