| Availability: | |
|---|---|
| Quantity: | |
AJU‑X300D is a dual sixteen‑element integrated GNSS anti‑jamming antenna unit designed for civilian and commercial platforms that require stable satellite navigation in complex signal environments. It enhances useful signals from BDS B1, GPS L1+L5 and Galileo E1 while suppressing interference, helping industrial UAVs, agricultural drones, autonomous ground vehicles, mobile mapping systems, marine navigation and robotics maintain reliable position, velocity and timing.
The AJU‑X300D combines a dual sixteen‑element array antenna, anti‑jamming processing electronics, an optional built‑in GNSS receiver and interface cabling in one low‑profile module. It performs reception, amplification, down‑conversion, filtering, adaptive interference mitigation and up‑conversion for 16 channels, then provides either processed RF output or PVT data for downstream systems.
This GNSS anti‑jamming antenna is intended for lawful civilian and commercial use in environments with high electromagnetic noise, dense infrastructure or accidental interference that could otherwise reduce navigation quality. Typical applications include industrial UAV missions, precision agriculture, unmanned ground vehicles, mobile mapping platforms, marine navigation systems, robotic equipment and other autonomous systems that rely on accurate GNSS information.
Figure 2-1 Dimensions Drawing of Dual Sixteen-Element Array Anti-Jamming Unit (unit:mm)
Figure 2-2 Dimensions Picture of Dual Sixteen-Element Array Anti-Jamming Unit (unit:mm)
Dual sixteen‑element GNSS array for advanced spatial interference suppression and improved signal quality.
Supports 16‑channel BDS B1, Galileo E1 and GPS L1+L5 signal processing.
Designed to resist broadband, narrowband, pulse, sweep and other suppression interference types, including mixed scenarios.
Handles 1–15 interference sources arriving from different directions, helping maintain navigation where standard antennas lose lock.
Built‑in receiver option provides PVT output after anti‑jamming processing for easier integration with flight controllers and navigation computers.
Wide DC 24–36 V power input and overhead‑mount friendly mechanical design suited to many civilian platforms.
J30J‑25ZKP power/data connector and SMA‑K RF connector for straightforward electrical integration.
Rugged design with IP65 or higher waterproof rating and wide operating temperature for outdoor use.
Item | Specification |
|---|---|
Array type | Dual sixteen‑element integrated navigation anti‑jamming unit |
Supported GNSS bands | BDS B1, GPS L1+L5, Galileo E1 |
Number of channels | 16 channels |
Interference types | Broadband, narrowband, pulse, frequency sweep and combinations |
Number of interferers | 1–15 sources from different directions |
Single broadband suppression | Interference‑to‑signal ratio ≥110 dB @ -130 dBm |
Seven broadband suppression | ≥100 dB @ -130 dBm |
Fifteen broadband suppression | ≥80 dB @ -130 dBm |
Spatial anti‑jamming range | Azimuth 0°–360°, elevation -10°–90° |
Item | Specification |
|---|---|
RF output power | -55 dBm ~ -70 dBm |
RF impedance | 50 Ω |
Output VSWR | ≤2.0 |
Antenna port burnout resistance | ≥10 W |
Receiver output | Positioning results via data interface |
Horizontal accuracy | ≤7 m (95%, PDOP≤4) |
Vertical accuracy | ≤9 m (95%, PDOP≤4) |
Velocity accuracy | ≤0.2 m/s (95%) |
Item | Specification |
|---|---|
Operating voltage | DC 24 V ~ 36 V |
Average power consumption | ≤40 W typical (receiver continuous), ≤70 W (receiver with AJ active) |
Power/data connector | J30J‑25ZKP, 25 pins |
RF connector | SMA‑K |
Serial port level | Default LVTTL (3.3 V), RS422 optional |
Pin | Signal | Description | Instructions |
|---|---|---|---|
1 | +24 V ~ +36 V | Power input | Unit power supply |
2 | +24 V ~ +36 V | Power input | |
3 | GND | Power ground | |
4 | GND | Power ground | |
5 | RX1 | TTL receive | GNSS receiver interface, 5 Hz, 115200, NMEA GGA/GSV/RMC/VTG/ZDA by default |
6 | NC | NC | |
7 | NC | NC | |
8 | TX1 | TTL transmit | |
9 | GND | Signal ground | |
10 | RS232_RX1 | RS232 receive | |
11 | RS232_TX1 | RS232 transmit | |
12 | GND | Signal ground | |
13 | RS232_RX2 | RS232 receive | |
14 | RS232_TX2 | RS232 transmit | |
15 | GND | Signal ground | |
16 | +24 V ~ +36 V | Power input | Unit power supply |
17 | +24 V ~ +36 V | Power input | |
18 | GND | Power ground | |
19 | GND | Power ground | |
20 | GND | Signal ground | |
21 | RS232_RX3 | RS232 receive | |
22 | RS232_TX3 | RS232 transmit | |
23 | GND | Signal ground | |
24 | RS232_RX4 | RS232 receive | |
25 | RS232_TX4 | RS232 transmit |
Item | Specification |
|---|---|
Dimensions | 300 mm × 300 mm (plan size) |
Mounting | |
Screws & brackets | 16 pcs M3 screws, 4 pcs mounting brackets per set |
Item | Specification |
|---|---|
Operating temperature | |
Storage environment | -45℃ ~ +85℃, 10% ~ 95% RH, non‑condensing |
Waterproof rating | Not lower than IP65 |
Shock test | ISO 19453‑3:2018 (civil small and light UAS shock) |
Vibration test | ISO 5309:2023 (civil small and light UAS vibration) |
The antenna is supplied in paper packaging with internal shock‑absorbing and drop‑resistant buffering for transport protection. During installation, the long sides of the mounting brackets are fixed to both sides of the antenna body with the supplied screws, then the assembly is mounted to the platform through bracket holes and all screws are evenly tightened for vibration resistance.
The bottom surface is a metal heat‑dissipation area and should be installed overhead or with good airflow to maintain proper cooling. The top surface is the GNSS receiving plane and must face open sky without obstruction; if used inside a body, the material above must be wave‑transmitting with at least 92% L‑band transmission.
We also offer a range of civilian GNSS anti-jamming antennas, including single four‑element, dual four‑element, single eight‑element, dual eight‑element and sixteen‑element array models.
If you are interested in technical discussions or product cooperation, please feel free to contact us at any time.