The M-AJ-QUATRO anti-jamming antenna system was introduced by Inertial Labs, a VIAVI Solutions company. Assured Positioning, Navigation, and Timing (A-PNT) is established in GPS/GNSS-challenged contexts, spanning from commercial aircraft to military operations, with the M-AJ-QUATRO’s advanced Controlled Reception Pattern Antenna (CRPA) and digital processing technology.
The U.S. Federal Aviation Administration (FAA) and Naval Air Warfare Center Aircraft Division (NAWCAD) are speeding up the approval process for CRPA technology to improve aviation safety and reduce terrestrial-based GPS interference.
Government agencies and industry leaders are stepping up efforts to combat GNSS jamming and spoofing threats. PNT services are becoming essential for the safe operation of a wide variety of essential services from transportation, AI hyperscale data centers, and telecommunications to energy, finance, and defense.
The M-AJ-QUATRO provides outstanding interference mitigation and secure signal processing while operating flawlessly over the whole L1, L2, and L5 GNSS bands.
Its adaptive digital nulling ensures reliable performance in contested environments by automatically suppressing jamming signals with over 34dB+ interference suppression (export-free version) and over 45dB+ interference suppression (export-controlled version).
By locating and isolating interference sources, the system’s jammer direction-finding capacity improves operational efficacy and situational awareness.
With its multi-constellation compatibility, the M-AJ-QUATRO offers strong worldwide coverage and is compatible with GPS, GLONASS, GALILEO, BEIDOU, and QZSS. Strong data integrity is made possible by secure signal processing that is fueled by dual FPGA-based encryption and anti-spoofing technology, protecting mission-critical applications.
This system is perfect for defense and aerospace operations since it is designed to endure the most severe conditions and satisfies the strict MIL-STD-810G and MIL-STD-461F specifications.
Leadership Comments 
“As the FAA and NAWCAD push for CRPA integration into commercial aircraft, M-AJ-QUATRO is positioned as a market-ready solution for both military and civilian applications,” said Jamie Marraccini, Vice President, Inertial Labs Products, VIAVI. “With regulatory shifts streamlining CRPA adoption, this launch marks a significant step in ensuring secure, interference-free navigation for mission-critical operations.”
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