The TUALAJ 4500-D GPS/GNSS anti-jamming system is engineered to provide resilient PNT in environments affected by intentional interference. Incorporating a 4-element CRPA, a high-performance digital controller, and advanced beamforming techniques, the system suppresses interference and maintains continuous GNSS receiver operation, even in the presence of up to three simultaneous jamming sources across five frequency bands. Protected active bands can be pre-selected from available configuration options to match operational requirements.
Additional interference mitigation is achieved through adaptive notch filtering and pulse blanking, further enhancing signal integrity in complex RF conditions. An optional embedded high-performance GNSS receiver is available, supporting SBAS signals to improve positioning accuracy and reliability.
The system is designed for deployment across naval platforms, land-based defense systems, and fixed installations, supporting integration with both civil and military GNSS receivers. Compatibility with multiple messaging formats enables flexible system integration within existing architectures.
Housed within a rugged enclosure optimized for harsh operating environments, particularly maritime conditions, the TUALAJ 4500-D is suited to demanding operational use, delivering assured PNT performance across a wide range of defense platform applications.
| Dimensions (cm): | Diameter Ø25, Height 13.8 |
| Weight (g): | 4500 (DACU) |
| Power Consumption (W): | Maximum 30 |
| Antenna Array: | 4 Array CRPA Antenna |
| Simultaneous Independent Nulling: | 3 |
| Simultaneous Active Bands (Option 1): | GPS (L1, L2, L5, L6), L Band Correction, Galileo (E1, E5a, E5b, E6), Beidou (B1, B2a, B2b, B3), SBAS |
| Simultaneous Active Bands (Option 2): | GPS (L1, L2, L5), GLONASS (G1, G2), Galileo (E1, E5a), L Band Correction, Beidou (B1, B2a), SBAS |
| Nominal Wideband Suppression: | > 50 dB |
| Connectors: | 2× D38999, 1× TNC |
| Operating Voltage: | 12–32 VDC |
| Operating Temperature: | -40 °C to +85 °C |
| Embedded GNSS Receiver (Optional): | GPS (L1, L2), GLONASS (G1, G2), Galileo (E1, E5b), Beidou (B1), SBAS, QZSS (L1), RTCM Support |
| Environmental Tests: | MIL-STD-810G |
| EMI / EMC: | MIL-STD-461F |
| Data Interfaces: | Ethernet (Optional), Serial RS-232, Serial RS-485 |





