JS-SK43-AH High-Precision GNSS RTK Smart Antenna: Key Applications

JS-SK43-AH GNSS RTK Receiver: Advanced High-Precision Positioning for Challenging Environments

Dec 31, 2025

JS-SK43-AH RTK smart antenna providing centimeter-level precision in challenging urban environments.

The JS-SK43-AH functions as a compact full-system multi-frequency high-precision RTK smart antenna. This receiver leverages GNSS+ technology with flexible and reliable features, including advanced interference and spoofing detection alongside automatic mitigation. It sets a performance standard for mass-market GNSS positioning through full-view satellite tracking and multiple super channels, which enhance satellite navigation signal processing. Even in demanding environments, the device achieves reliable high-precision positioning with industry-leading ultra-low power consumption. Available in single-antenna (JS-SK43-AH) and dual-antenna (JS-SK43H-AH) configurations, it suits applications in drones, robots, autonomous systems, and space-constrained equipment that require highly reliable and accurate positioning.

Multi-Constellation, Multi-Frequency GNSS Performance

The JS-SK43-AH incorporates 789 hardware channels for simultaneous operation. It supports full-view satellite tracking across multiple constellations and four frequency bands. Key frequencies include GPS L1C/A, L1C, L2PY, L2C, L5; BDS B1I, B1C, B2a, B2I, B2b, B3I; GLONASS L1CA, L2CA, L2P, L3 CDMA; Galileo E1, E5a, E5b, E6; and QZSS L1C/A, L1C/B, L2C, L5, L6 (with special firmware). Advanced functions such as AIM+ for interference and spoofing mitigation, LOCK+ for robust tracking against mechanical shock and vibration, IONO+ for ionospheric interference protection, and APME+ for multipath mitigation distinguish direct signals from reflections.

Designed for RTK-Grade Precision and Stability

With RTK capabilities, the JS-SK43-AH delivers centimeter-level positioning, achieving horizontal accuracy of 0.6 cm + 0.5 ppm and vertical accuracy of 1 cm + 1 ppm. Time-to-first-fix stands at 35 s for cold starts, 10 s for hot starts, and 1 s for reacquisition, with RTK initialization at 7 s. In 3D mode, it provides 1.5 m horizontal and 2 m vertical accuracy, while DGNSS offers 0.4 m horizontal and 0.7 m vertical. Dual-antenna mode enables heading output with accuracy of 0.15° for heading and 0.25° for pitch/roll at 1 m antenna spacing, improving to 0.03° and 0.05° at 5 m. The receiver supports up to 20 Hz RTK positioning data update rate and includes full raw measurement data.

High Reliability for Intelligent System Integration

Time accuracy features PPS resolution of 1.4 ns, event accuracy under 3 ns, and latency below 10 ms. Velocity accuracy reaches 0.03 m/s. Operational limits include dynamics up to 4 g. The device operates on 4.8 V to 5.5 V with current draw up to 180 mA, within temperatures from -40°C to 85°C. It supports optional electronic compass and ultra-short baseline heading output in dual-antenna mode. Baud rates range from 4800 to 4M bps (default 115200 bps), with a GH1.25 8P serial connector.

Application Scenarios

The JS-SK43-AH addresses a broad spectrum of professional applications that necessitate consistent accuracy and robust positioning:

● Drones: Enhances flight stability and autonomous navigation in precision tasks.

● Inspection Robots: Supports accurate mapping and situational awareness in industrial settings.

● Dotting Devices: Enables precise data collection for surveying and measurement.

● Unmanned Vehicles: Facilitates vehicle management and intelligent mobility with reliable RTK guidance.

Key Advantages at a Glance

● 789 hardware channels with simultaneous multi-constellation operation.

● Advanced interference mitigation (AIM+, IONO+, APME+) and shock resistance (LOCK+).

● Centimeter-level RTK accuracy (0.6 cm + 0.5 ppm horizontal).

● Ultra-low power consumption for space-constrained devices.

● Dual-antenna support for precise heading (0.03° at 5 m spacing).

● Compact dimensions (bottom Φ48.00 mm, top Φ43.20 mm, height 37.00 mm) and weight under 24 g.