Product Overview
The AJU-4100D uses a dual four-element array with dual-band processing on B1/L1/E1 plus L5, raising jamming rejection to 105 dB against a single source while retaining lock on the L5 safety-of-life signal. It suits industrial inspection UAVs, urban logistics drones, autonomous vehicles and railway positioning where stronger interference sources are present. Typical applications: Industrial UAV inspection, urban logistics delivery, autonomous vehicles, railway positioning, base-station timing.
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 ≥ 105 dB; three jammers ≥ 90 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 4-element (8-channel) array |
| Dimensions | 100 x 100 x 24.5 mm (±0.5 mm) |
| Weight | ≤ 400 g |
| Power consumption | ≤ 14 W |
| Frequencies (default) | B1 / L1 / E1 + L5 |
| Anti-jamming capability | Single jammer ≥ 105 dB; three jammers ≥ 90 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 12 – 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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