YH181 7-Channel CRPA for Extreme NAVWAR Resilience

When mission success hinges on maintaining navigation in the most saturated threat environments, the YH181 stands as the ultimate defense. Engineered to counter complex, multi-source electronic attacks, this system delivers an unprecedented level of Assured PNT, ensuring your platform maintains dominance in the modern battlespace.

Product Overview

The YH181 is a flagship 7-channel Controlled Reception Pattern Antenna (CRPA) system, purpose-built for platforms operating in extreme electronic warfare (EW) and NAVWAR conditions. Its advanced architecture simultaneously processes signals from GPS L1, GLONASS G1, Galileo E1, and BeiDou B1, while its powerful digital signal processing core identifies and nullifies up to six independent jamming sources. Functioning as a robust RF front-end, the YH181 delivers a sanitized, interference-free signal to any external GNSS receiver, guaranteeing high-precision positioning and timing when it is most critical.

Key Features & Benefits

• Ultimate Threat Mitigation: With a 7-element antenna array, the YH181 can simultaneously nullify up to 6 jammers, providing unparalleled protection against sophisticated, multi-directional electronic attacks.
• Unbroken Situational Awareness: Full multi-constellation support (GPS, GLONASS, Galileo, BDS) ensures maximum satellite visibility and a resilient PNT solution, preventing outages even in degraded signal environments.
• Deep Jamming Nulls (≥100dB J/S Ratio): Creates deep, precise nulls in the antenna's gain pattern, effectively excising powerful interference and allowing the GNSS receiver to maintain a solid lock on satellite signals.
• Platform Versatility: While engineered for maximum performance, its design is optimized for integration into larger platforms such as naval vessels, armored vehicles, and strategic UAVs where PNT resilience is paramount.
• Mission-Critical Reliability: Built to operate in harsh conditions from -40°C to +70°C and equipped with anti-spoofing technology, the YH181 is the trusted core of any Assured PNT architecture.

Primary Applications

• Naval Vessels & Unmanned Surface Vehicles (USVs): Provides the highest level of PNT protection for warships, patrol boats, and autonomous maritime platforms operating in contested waters.
• Armored Combat Vehicles & C4ISR Platforms: Ensures continuous navigation and timing for tanks, command vehicles, and mobile communication hubs on a dynamic battlefield.
• Strategic UAVs (HALE/MALE) & Aerostats: Delivers mission-enabling GNSS resilience for high-value aerial assets performing long-endurance ISR and communications relay tasks.
• Fixed Site & Critical Infrastructure: Safeguards precise timing for command posts, radar installations, and communication nodes against deliberate jamming or spoofing.

Technical Specifications

Performance

Power & Output

Physical Attributes

Environmental

Seamless Integration & Support

The YH181 is designed as a robust RF front-end for easy integration with a wide range of military and commercial GNSS receivers. We provide a full support package to ensure mission readiness:

• Comprehensive datasheet with Interface Control Document (ICD).
• 3D STEP models and detailed mechanical drawings for system integration.
• Direct engineering support for integration challenges and customization requests.

Frequently Asked Questions (FAQ)

What is the primary advantage of a 7-channel system over a 4-channel one?

A 7-channel CRPA, like the YH181, uses more antenna elements to create more precise and deeper nulls against interference. This allows it to simultaneously defeat a larger number of jammers (6 vs. 3), making it the superior choice for highly contested environments where multiple, coordinated threats are expected.

Is the YH181 a complete GNSS receiver?

No, the YH181 is a specialized anti-jamming RF front-end. Its function is to receive signals from the antenna array, remove all interference, and then output a clean, protected signal to your existing external GNSS receiver. This modular approach allows for greater flexibility and integration with legacy systems.

What platforms is the YH181 best suited for?

Due to its size, weight, and power (SWaP) profile, the YH181 is ideal for larger platforms where maximum PNT resilience is the top priority. This includes naval surface vessels, armored ground vehicles, C4ISR systems, large strategic UAVs, and fixed critical infrastructure sites.