BeiDou-2 Military Single-Mode Module – Secure GNSS Positioning with Authorized Service Access
HGNN2541AJ
The HGNN2541AJ is a military-specification BeiDou-2 single-mode module from WalliSemi, designed for secure positioning and timing in defense applications. This module provides dual-access capability to both open civilian signals and encrypted authorized services, with specialized anti-spoofing features for tactical environments.
Specifications
Key Features:
✔ Classified Signal Access – Decrypts BDS-2 authorized service signals (-140dBm acquisition)
✔ Multi-System Fallback – Optional GPS L1/GLONASS G1 interoperability
✔ Battlefield Resilience – Supports 3000m/s velocity and 30g acceleration scenarios
✔ Secure RAM Monitoring – Real-time signal integrity verification
✔ Ruggedized Design – -40℃ to +85℃ operation in 40×80×12.9mm form factor
Military Applications:
-
Precision Guided Munitions
-
Armored Vehicle Navigation
-
Military Aircraft Avionics
-
Strategic Timing Systems
This module embodies WalliSemi’s “Intelligent Technology, Core to the Future” philosophy, delivering hardened GNSS performance for systems requiring both civilian compatibility and military-grade security.
| Model | HGNN2541AJ |
| Supported Frequencies | BDS-2 B1/B3/B3A, GPS L1 C/A, GLONASS G1 |
| Core Functions | Full-band BDS-2 signal processing + GPS/GLONASS support Authorized service signal tracking (military-grade) Flexible positioning modes: BDS dual/single-frequency, GPS single-frequency, multi-system hybrid RAM monitoring & synchronized alert functions External-aided fast positioning RTCM 2.1 standard compliance |
| Performance Metrics | Acquisition sensitivity: – Open service: -142dBm – Authorized service: -140dBm Tracking sensitivity: ≤-155dBm TTFF: – Cold start: 45s (open), 60s (authorized) – Hot start: 5s (open), 10s (authorized) Positioning accuracy: ≤10m (95% H/V) Velocity accuracy: ≤0.2m/s Dynamic range: 3000m/s velocity, 30g acceleration |
| Electrical | Voltage: 5V±5% Power: ≥2.5W (tracking) |
| Interfaces | RF: MMCX female Data: 2×15-pin header |
| Dimensions | 40mm × 80mm × 12.9mm (±0.5mm) |
| Environmental | Operating temp: -40℃ to +85℃ Storage humidity: -55℃ to +95℃ |
| Applications | Military/aerospace positioning, timing, and navigation systems |