Product Overview
The AJU-X300D is the flagship dual sixteen-element array unit for navigation and timing on large ships, maritime platforms, large fixed base stations and high-value industrial unmanned aircraft. Dual-band B1/L1/E1+L5 reception, 110 dB single-jammer rejection and 15-jammer resistance keep positioning and timing trustworthy in the most demanding electromagnetic conditions. Typical applications: Navigation and timing for large ships and maritime platforms, large fixed base stations, special vehicles.
Key Features
- CRPA (controlled reception pattern) antenna array that adaptively nulls jamming sources while keeping the GNSS main beam on satellites
- Suppresses wideband, narrowband, frequency-sweep and pulse jamming, and combinations of these, on GPS L1 / BDS B1 / Galileo E1; capability: Single jammer ≥ 110 dB; seven jammers ≥ 100 dB; fifteen jammers ≥ 80 dB (J/S @ -130 dBm)
- Built-in multi-constellation GNSS receiver outputs NMEA positioning data (GGA/GSV/RMC/VTG/ZDA) over the data interface
- SMA-K anti-jammed RF output, J30J power-and-data connector, 50-ohm matching with VSWR <= 2.0
- IP65 protection, -40C to +70C operating range, shock and vibration tested per UAV environmental standards
Technical Specifications
| Parameter | Specification |
|---|---|
| Array type | Dual 16-element (32-channel) array |
| Dimensions | 300 x 300 x 27.6 mm (±0.5 mm, excl. heatsink) |
| Weight | ≤ 2100 g (excl. heatsink) / ≤ 5230 g (with heatsink) |
| Power consumption | ≤ 70 W |
| Frequencies (default) | B1 / L1 / E1 + L5 |
| Anti-jamming capability | Single jammer ≥ 110 dB; seven jammers ≥ 100 dB; fifteen jammers ≥ 80 dB (J/S @ -130 dBm) |
| Interference coverage | Azimuth 0-360°, elevation -10° to +90° |
| RF output | SMA-K, -55 to -70 dBm, 50 Ω, VSWR ≤ 2.0 |
| Data interface | J30J-9ZK power/data connector; LVTTL 3.3 V default, RS422 optional |
| Built-in GNSS receiver | Horizontal ≤ 7 m, vertical ≤ 9 m (95%, PDOP ≤ 4); velocity ≤ 0.2 m/s |
| Antenna port burnout resistance | ≥ 10 W |
| Supply voltage | DC 24 – 36 V |
| Operating temperature | -40°C to +70°C, 10-90% RH non-condensing |
| Storage temperature | -45°C to +85°C |
| Ingress protection | IP65 |
| Shock / vibration | Tested per civilian UAV system environmental test standards |
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