Home / Products / 4100D Multi‑Band GNSS Anti‑Jamming Navigation Module for UAV And Vehicle Systems

4100D Multi‑Band GNSS Anti‑Jamming Navigation Module for UAV And Vehicle Systems

Quantity:
Availability:





Inquire Add to Basket

Product Description

The AJU-4100D is a high-performance dual four-element GNSS anti-jamming navigation antenna module designed for UAVs, vehicles and mission platforms that must keep satellite positioning even under strong intentional interference.

Product Overview

The AJU-4100D combines a phased-array antenna, digital interference cancellation engine and optional GNSS receiver in a single rugged housing, simplifying system design for engineers while remaining easy to understand and deploy for end users.
It processes four RF channels and supports Beidou B1, GPS L1 with either L2 or L5, and Galileo E1 signals, providing resilient multi-band coverage for critical navigation tasks.

Product Drawings of Anti-Jamming Unit

Figure 2-1 Product Drawings of Anti-Jamming Unit

Figure 2-2 Dimensions Drawing of Anti-Jamming Unit

Key Features for GNSS & Antenna Engineers

Dual-band GPS support: configurable for L1+L2 or L1+L5 plus BDS B1 and Galileo E1, enabling flexible system architectures and future-proof multi frequency designs.

Four-channel array with adaptive spatial filtering to suppress 1–3 jammers from different directions, improving carrier-to-noise ratio and solution availability in contested RF environments.

Exceptional anti-jamming performance, achieving up to ≥110 dB single broadband interference rejection and ≥95 dB with three simultaneous wideband jammers at -130 dBm.

Optional integrated receiver outputs PVT data after anti jamming processing, so downstream systems receive already-clean GNSS measurements through a standard data interface.

Benefits for System Integrators & End Users

For UAV and UGV designers, the module offers a plug-and-play anti-jamming front end: power it from a DC 9–36 V bus, connect the RF and RS422 ports, and the platform gains robust satellite navigation even in dense interference.

For operators and non-technical users, the device acts like a “shielded GNSS antenna” that keeps the navigation solution available when conventional antennas would lose lock or show large position jumps.

Anti-Jamming & RF Performance

Item	Specification	Description
Supported bands	BDS B1, GPS L1+L2 or L1+L5, Galileo E1	Flexible configuration for different systems
Number of channels	4-channel array	Spatial processing across four elements
Jamming types	Broadband, narrowband, swept, pulse and combinations	Targets typical civil and tactical threats
Simultaneous interferers	1–3 directions	Multi source suppression capability
Single broadband rejection	≥110 dB @ -130 dBm	Very high interference-to-signal ratio tolerance
Three broadband rejection	≥95 dB @ -130 dBm	Maintains tracking under complex attacks
Spatial coverage	Azimuth 0°–360°, elevation -10°–90°	Nearly full hemispherical protection
RF output power	-55 to -70 dBm	Compatible with common GNSS receivers
RF impedance / VSWR	50 Ω, VSWR ≤2.0	Good matching for low-loss links

Optional Built-In GNSS Receiver

Item	Specification	Notes
Supported frequencies	B1, L1, E1 plus L2 or L5	Matches front-end configuration
Position accuracy	Horizontal ≤7 m, vertical ≤9 m (95%, PDOP ≤4)	After interference mitigation
Velocity accuracy	≤0.2 m/s (95%)	Suitable for guidance and control loops
Data output	PVT via digital interface	Direct feed into flight controller or navigation computer

Power, Interface and Control

Parameter	Value	Description
Supply voltage	DC 9–36 V	Direct connection to vehicle or UAV power bus
Typical power consumption	≤12 W	Includes anti-jamming processing and receiver (if enabled)
Data interface	RS422	Configuration, status and mode control via serial port
Modes	Soft bypass / anti-jamming	Switchable through serial commands

J30J-9ZK Power & Data Connector

Pin	Signal	Description
1	+9 V ~ +36 V	Power input
2	+9 V ~ +36 V	Power input (parallel)
3	GND	Power ground
4	GND	Power ground
5	RS422 RX-	Serial receive- (configuration/data)
6	RS422 RX+	Serial receive+
7	RS422 TX-	Serial transmit-
8	RS422 TX+	Serial transmit+
9	GND	Ground

RF Output

Connector	Output level	Description
SMA-K	-55 to -70 dBm	Up-converted B1/L1/E1+L2 or B1/L1/E1+L5 GNSS signal

Mechanical Design for Platform Integration

Item	Specification	Description
Dimensions (L × W × H)	100 mm × 100 mm × 24.5 mm (±0.5 mm)	Flat profile for fuselage or roof mounting
Weight	≤400 g	Suitable for medium and large UAVs, vehicles, vessels
Housing	Natural aluminum, conductive anodizing	RF shielding and effective heat spreading
Radome	Silver-gray or white	RF-transparent protective cover
Mounting	4 × M2.5 holes, depth 2.4 mm on sides	Simple bracket or panel installation

The metal base is designed as a heat-spreading surface; it should be mounted to a metal plate or installed with adequate airflow to ensure reliable thermal performance.
The top side is the GNSS receiving plane and must have a clear view of the sky or be placed under an L-band RF-transparent cover (wave transmission ≥92%) when installed inside a vehicle or aircraft body.

Environmental and Reliability Ratings

Item	Specification
Operating temperature	-40 ℃ to +65 ℃, 10%–90% RH, non-condensing
Storage temperature	-45 ℃ to +85 ℃, 10%–95% RH, non-condensing
Ingress protection	Not lower than IP65
MTBF	≥2000 h
Continuous operation	≥24 h
Shock test	ISO 19453-3:2018 (civil small & light UAS, shock)
Vibration test	ISO 5309:2023 (civil small & light UAS, vibration)

Standard Delivery

No.	Item	Quantity	Notes
1	AJU-4100D anti-jamming navigation unit	1	100 × 100 mm module
2	Connection cable	Optional	Length and connectors customizable
3	Built-in navigation receiver	Optional	e.g. u-blox NEO-M9N, UM960
4	G1 band option	Optional	Increases overall power draw when enabled
5	Mounting screw set	1 set	4 × M2.5 × 2.4 mm screws
6	Documentation pack	1 set	User guide and technical notes

Packaging

The AJU 4100D is shipped in a cardboard carton with internal shock absorbing foam to protect the equipment from vibration and accidental drops during international transport and repeated on site handling.

GNSS anti jamming module dual band GPS L1 L2 L5 anti jam four channel GNSS array antenna UAV vehicle GNSS anti jamming unit Beidou B1 Galileo E1 navigation module integrated anti jamming GNSS receiver multi band GNSS anti jamming antenna

Product Category

RELATED PRODUCTS

content is empty!