The M-AJ-QUATRO from Inertial Labs, a subsidiary of VIAVI Solutions Inc., is a high-performance Controlled Reception Pattern Antenna (CRPA) system engineered for assured positioning, navigation, and timing (A-PNT) in electromagnetically contested environments. Operating across the full L1, L2, and L5 GNSS bands, the system delivers robust signal fidelity even in the presence of wideband and in-band interference.
With more than 34dB suppression in its export-free configuration and 45dB+ in its export-controlled model, the M-AJ-QUATRO actively nullifies jamming sources while providing jammer direction-finding for enhanced situational awareness.
Optimized for military and aerospace operations, the antenna integrates FPGA-secured signal processing with adaptive digital nulling, anti-spoofing encryption, and real-time interference rejection. Its precision-engineered CRPA architecture minimizes multipath distortion and enhances signal integrity under dynamic and degraded signal conditions.
With full compatibility across GPS, GLONASS, GALILEO, BEIDOU, and QZSS, and seamless integration with Inertial Labs’ GNSS-aided INS systems, the M-AJ-QUATRO ensures operational reliability across the globe. Built to meet rigorous MIL-STD-810G and MIL-STD-461F standards, it is a mission-critical asset in modern electronic warfare and A-PNT resilience strategies.
Specifications:
| Size: | RF Module: 64 mm x 50.7 mm x 141.31 mm (control unit size) Antenna Module: < 132 mm x 132 mm x 19 mm (antenna size) |
| Weight: | RF Module: 364 g Antenna Module: 503 g |
| RF Module Power: | < 10W |
External Interfaces
| External Power: | 12 to 28V DC |
| RF Connectors: | MCX (1x to GNSS RX, 4x to ANT) |
| Data/Power Connector: | 25 pin Micro-D style MIL-DTL-83513 |
| Data Interface: | Serial over USB (FTDI) |
GNSS Performance
| Bands: | GNSS L1, L2, L5 |
| Polarization: | RHCP (AR< 3dB above 15° elevation) |
| Gain: | 2dBic > 15° elevation |
| Interference Sources: | 3 |
| Suppression Level: | 34dB |
| Interference Types: | Wideband, in-band |
Environmental
| Operating Temperature: | -40°C to +80°C |
| Storage Temperature: | -45°C to +85°C |
| Altitude: | >18,000 ft AGL |
| Shock & Vibrations: | MIL-STD-810G |
| EMC/EMI: | MIL-STD-461F |
