Gnss Zd669 Four-Channel Global Navigation Satellite System Anti-Jamming System

Product Description

Product Description

This anti-jamming system is designed to receive, amplify, down-convert, filter and perform anti-jamming

processing on the 4-channel Beidou BDS-B1 and GPS L1 frequency signals. It operates at a +5V power

supply voltage and consists of four main components: antenna array, RF module, anti-jamming processing

module and receiver. It can counter three wideband jamming sources and provide high-precision

positioning and precise timing under strong jamming conditions.

 

Product Parameters

4-channel		Beidou BDS B1 and GPS L1 antenna array
Input frequcncy		B1: 1561.098 MHz ± 2.046 MHz; L1: 1575.42 MHz ± 1.023 MHz
Anti-interference type		Capable of suppressing various types of interference, such as broadband,frequency scanning, pulse and combined interference
Number of anti-interference sources		Capable of simultaneously resisting interference from 3 sources in different directions
Broadband interference resistance capability		Signal ratio ≥95 dB @ -130 dBm
Anti-three-band interference capability		Signal ratio ≥85 dB @ -130 dBm
Operating temperature		-40°C to +75°C
Storage environment		-45°C to +80°C
Dimensions		(66.0+0.5)mm x(66.0 ±0.5)mm x(24.3 +0.5)mm
Power consumption		≤ 7W
Weight		≤ 128g
Positioning accuracy		≤ 10m
Speed measurement accuracy		≤ 0.2 m/s

Product Overview

In an era where navigation warfare (NAVWAR) is a primary threat to both nd civilian operations, the integrity of your Positioning, Navigation, and Timing (PNT) data is critical. Introducing the Compact 4-Channel GNSS Anti-Jamming Antenna System, a state-of-the-art solution engineered to maintain high-precision positioning and precise timing even under the most severe jamming conditions.

This advanced system is designed to receive, amplify, down-convert, filter, and perform anti-jamming processing on the 4-channel BeiDou BDS-B1 and GPS L1 frequency signals. By integrating a multi-element antenna array, RF components, and a sophisticated anti-jamming processor, it provides a robust defense against broadband, frequency scanning, pulse, and combined interference types. Its exceptionally compact and lightweight design makes it ideal for space-constrained platforms like UAVs and portable tactical units.

Key Features and Benefits

1. Dual-Constellation Support (BeiDou B1 & GPS L1)

The system is built on a 4-channel architecture that supports the two most critical GNSS constellations for global and regional operations.

• BeiDou (BDS): B1 (1561.098 MHz ± 2.046 MHz)

• GPS: L1 (1575.42 MHz ± 1.023 MHz)

This dual-constellation capability ensures maximum satellite availability and redundancy, providing reliable navigation even if one constellation is degraded or unavailable in a specific region.

2. Advanced Anti-Jamming Capabilities

The core strength of this system lies in its ability to suppress interference. It utilizes a multi-element array (4 channels) to perform spatial filtering.

• Multi-Source Suppression: It can simultaneously resist interference from 3 sources in different directions. This is crucial for countering complex jamming scenarios where multiple jammers are deployed.

• Versatile Interference Rejection: The system is capable of suppressing various types of interference, including:

  • Broadband interference

  • Frequency scanning interference

  • Pulse interference

  • Combined interference

3. High Anti-Interference Performance Metrics

The system's resilience is quantified by its signal-to-interference ratios, demonstrating its ability to maintain a lock even when the jamming signal is significantly stronger than the satellite signal.

• Broadband Interference Resistance: Signal ratio ≥95 dB @ -130 dBm.

• Anti-Three Broadband Interference: Signal ratio ≥85 dB @ -130 dBm.

4. High-Precision Positioning and Timing

The ultimate goal of any anti-jamming system is to maintain accurate PNT data. This system delivers:

• Positioning Accuracy: ≤ 10m

• Speed Measurement Accuracy: ≤ 0.2m/s
  This level of precision is essential for guided munitions, autonomous vehicles, and synchronized communication networks.

5. Ultra-Compact and Lightweight Design

One of the most striking features of this system is its miniaturized form factor. Weighing just ≤128g and measuring 66.0 x 66.0 x 24.3 mm, it is significantly smaller than traditional anti-jamming arrays. This makes it perfect for:

• Small Drones (UAVs): Where payload capacity is limited.

• Portable Radios: For dismounted soldiers.

• Vehicle Integration: Where space is at a premium.

6. Ruggedized for Extreme Environments

Designed for deployment in challenging environments, the unit operates on a wide voltage input of +5V and consumes less than 7W of power.

• Operating Temperature: -40°C to +75°C

• Storage Temperature: -45°C to +80°C

Technical Specifications Deep Dive

System Parameters

• Function: Receives, amplifies, down-converts, filters, and performs anti-jamming processing.

• Channels: 4-channel (BeiDou BDS B1 and GPS L1 antenna array).

• Input Frequencies:

  • B1: 1561.098 MHz ± 2.046 MHz

  • L1: 1575.42 MHz ± 1.023 MHz

• Anti-Interference Type: Capable of suppressing various types of interference (broadband, frequency scanning, pulse, combined).

• Number of Anti-Interference Sources: Capable of simultaneously resisting interference from 3 sources in different directions.

• Broadband Interference Resistance Capability: Signal ratio ≥95 dB @ -130 dBm.

• Anti-Three Broadband Interference Capability: Signal ratio ≥85 dB @ -130 dBm.

Physical and Environmental Characteristics

• Operating Temperature: -40°C to +75°C

• Storage Environment: -45°C to +80°C

• Dimensions: 66.0±0.5mm x 66.0±0.5mm x 24.3±0.5mm

• Power Consumption: ≤ 7W

• Weight: ≤ 128g

• Positioning Accuracy: ≤ 10m

• Speed Measurement Accuracy: ≤ 0.2 m/s

Application Scenarios

1. Tactical UAVs & Drones

Drones rely heavily on GNSS for navigation and return-to-home functions. This ultra-light (128g) anti-jamming system protects UAVs from being spoofed or jammed without significantly impacting flight time or payload capacity.

2. Dismounted Soldier Systems

For infantry units, reliable GPS is essential for situational awareness. This compact antenna can be integrated into portable radios or wearable gear, ensuring soldiers maintain their position data even in electronically contested environments.

3. Vehicle Integration

The system provides a resilient PNT source for armored vehicles and mobile command posts. Its ability to resist 3 simultaneous jamming sources ensures convoy integrity during operations.

4. Critical Infrastructure Timing

Telecommunication networks and financial systems rely on GPS for precise time synchronization. This antenna provides a cost-effective, compact solution for protecting backup timing receivers at cell towers or data centers.

Why Choose This 4-Channel GNSS Anti-Jamming System?

1. Ultra-Compact: Miniaturized design (66x66x24mm) and lightweight (128g).

2. Robust Defense: Capable of suppressing 3 simultaneous interference sources.

3. Dual-Constellation: Full support for BeiDou B1 and GPS L1.

4. High Precision: ≤10m positioning accuracy and ≤0.2m/s speed accuracy.

5. Low Power: Operates on +5V DC with ≤7W consumption.

Secure your PNT data with the Compact 4-Channel GNSS Anti-Jamming Antenna System-the frontline defense against navigation warfare.