Ultra-lightweight Anti-interference Antenna SLA65-4B1L1

An Anti-Jamming Antenna is a specialized solution designed to counteract intentional signal interference, ensuring uninterrupted operation of GPS/GNSS navigation and communication systems. By leveraging advanced adaptive nulling and spatial filtering technologies, these antennas detect and suppress jamming signals—including single-tone, swept-frequency, pulsed, and broadband noise—protecting critical positioning, timing, and velocity data.

product details

product description

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Technical Specifications

Performance

Overall size

Interface Definition

Parameter		Index		Remark
Operating frequency		BDS B1I /GPS L1/Galileo E1		1561±2MHz 1575±2MHz
Positioning mode		B1L1 dual-mode joint positioning		Support single BDS, GPS positioning
Serial Port 0		Output navigation information, 232 level		Connector J30J-9zkp
Serial port 1		For debugging, 232 level
Data update rate		1Hz
Serial port rate		38400		Default value
Data Output		NMEA0183
Power supply		DC 9～36V±10%
Power consumption		≤6W
Weight		≤160g
Built-in receiver		ublox：MAX-M10S		For receiver specifications, please refer to the ublox official website.
Anti-interference performance	Standard Version	Single Interference：≥105dB
		Dual interference：≥90dB
		Three interference：≥75dB
RF output characteristics		Output	SMA-KF	Outputs interference-free RF signals, which can be directly connected to common GNSS receivers, such as Ublox, Novatel, etc.
		Impedance	50Ω
		Gain	40±5dB
		VSWR	≤2.0
		Noise Figure	≤5.0
Storage temperature		-40℃～+85℃
Operating temperature		-40℃～＋85℃

Overall size

The power interface adopts model: J30J-9ZKP. The point layout and interface definition are as follows. Other interface definitions or interface types can also be customized according to user needs.

In the above figure, the bottom row from left to right is No. 1 to No. 5, and the top row from left to right is No. 6 to No. 9. The interface definitions of each point are as follows:

Point number	Signal name	Remarks
1	Power supply	9~36V wide voltage power supply
4	Power supply
5	Power Ground
6	Power Ground
2	232-RX0	Navigation output 232 serial port
3	232-TX0
7	Signal Ground
8	232-RX1	Debugging with 232 serial port or PPS
9	232-TX1	Debugging with 232 serial port or PPS

Frequency points can be customized according to customer requirements

Product Description

Key Features

Applications

Why Use an Anti-Jamming Antenna?

Jamming threats are escalating across military, commercial, and civil applications. Our antennas provide robust defense against interference, enabling reliable performance in high-stakes environments.

The SLA65-4B1L1 ultra-small anti-interference receiver integrates 4-way array antenna anti-interference and high-performance receivers, can receive BDS B1I, GPS L1, and Galileo E1 frequency signals, can meet the technical requirements of various small carrier applications, and realizes antenna elements, RF channels, anti-interference processing, and GNSS receivers in a very small volume, and meets the needs of high reliability and low-cost applications. The product is mainly used for real-time output of the spatial location information, timing, and speed information of the platform, and can resist various types of suppression interference, including but not limited to single carrier, sweep frequency, pulse, broadband modulation, saw-tooth wave, triangle wave and other types of interference and any combination of interference.

Key Features

● High integration: 4-element antenna, LNA, and anti-jamming processing Ultra-lightweight: Total weight less than 160g.

● Highly adaptable: Suitable for various unmanned equipment platforms.

● Excellent waterproofing: All antenna housing connections are sealed with waterproof gaskets.

● Simple and easy to use: Operates immediately upon power-up without requiring any external information.

Applications

It can be widely used in various types of drones, unmanned ships, small bombs and other system equipment. The adaptive nulling antenna and space-time adaptive filtering technology with independent intellectual property rights greatly improve the availability of satellite signals in complex electromagnetic environments.

Commitment to Excellence

Our anti-jamming antennas merge cutting-edge adaptive algorithms with compact form factors, delivering military-grade resilience at commercial costs. Ensure mission continuity—explore our portfolio for tailored GNSS protection.

Poseidon Innovative & Comprehensive Drone Technology Solutions
Redefining Precision, Efficiency, and Safety

UAVs (Unmanned Aerial Vehicles)

Ensuring precise positioning and navigation in dynamic environments.

Aerospace Industry

Providing reliable navigation and timing data for mission-critical operations.

Marine Navigation

Delivering accurate real-time spatial positioning and velocity data for safe voyages.

High-Mobility Platforms

Supporting autonomous vehicles and defense systems with precision and anti-jamming capabilities.

Defense and Military Systems

Ensuring accurate positioning in high-jamming environments.

Timing Solutions

Providing precise timing for communications and synchronization systems.

Surveying and Mapping

Enabling accurate spatial data collection for geospatial applications.

Drone Inspection Automated Processing Technology

Autonomous Vehicles

Ensuring reliable navigation for self-driving cars and robotics.