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JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40
JS-SK40 JS-SK40

JS-SK40

High Precision GNSS Helix Antenna Module

The JS-SK40 is a compact, multi-frequency RTK positioning module offering high-precision, reliable GNSS+ technology. With advanced interference detection and mitigation, it ensures accurate positioning in challenging environments. Featuring full-sky tracking and ultra-low power consumption, it’s ideal for drones, robotics, and autonomous systems.

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Product Features

  • Supports dual antenna input

  • 789 hardware channels for simultaneous operation

  • AIM+ with advanced interference and spoofing detection and automatic mitigation features

  • LOCK+ with excellent robust tracking capability against mechanical shock and vibration、IONO+ with advanced ionospheric interference protection

  • APME+ multipath mitigation to separate direct signals from signals reflected off nearby buildings

  • Provides full raw measurement data

  • RTK positioning data update rate up to 20Hz

  • Compact size with ultra-low power consumption

  • Full-sky satellite tracking: Multi-constellation, quad-band GNSS receiver

Compact and lightweight (39.80mm x35.00mm×32.41mm±0.3mm), <10.2g

RTK centimeter-level positioning


Performance

PerformanceTechnical Parameters
Receiver typeBDS B1I, B1C, B2a, B2I, B2b, B3I
GPS L1C/A, L1C, L2PY, L2C, L5
GLONASS L1CA, L2CA, L2P, L2C, L3 CDMA
Galileo E1, E5a, E5b, E6
QZSS L1C/A, L1C/B, L2C, L5, L6
Time-To-First-FixCold Start: 35 s
Hot Start: 10 s
Reacquisition: 1 s
RTK Initialization¹: 7 s
SensitivityTracking Sensitivity: -150 dBm (20 dB-Hz)
Acquisition Sensitivity: -140 dBm (30 dB-Hz)
Positioning Accuracy3D<br>Horizontal: 1.5 m<br>Vertical: 2 m
DGNSS<br>Horizontal: 0.4 m<br>Vertical: 0.7 m
RTK²<br>Horizontal: 0.6 cm + 0.5 ppm<br>Vertical: 1 cm + 1 ppm
Time AccuracyPPS: 1.4 ns
Event: < 3 ns
Latency< 10 ms
Velocity Accuracy3 cm/s
Baud Rate4800 – 4M bps (default 115200 bps)
Maximum Data Update Rate20 Hz


Pin Parameters

Pin Parameters
No.NameI/ODescription
1, AGNDGGround
2, BTX2OUART2 Data Output
3, CPPS/RX2O/ISerial port (UART2: Used for 1PPS Output <Default> / Data Input)
4, DSDAI/OI2C Data (keep open if not used)
5, ESCLI/OI2C Clock (keep open when not used)
6, FTX1OUART1 Data output
7, GRX1IUART1 Data input
8, HVCCIPower Supply Voltage
9RF Connector-Insert external antenna for dual-antenna positioning/orientation.<br>Antenna connector type: MMCX


Product Application

  • UAV/Drones

  • Automotive Applications

  • Precision Agriculture

  • Marine Navigation

  • Logistics & Security

  • Surveying & Mapping

  • Robotics

  • Smart Ports

  • Power Grid & Electricity

  • Smart Transportation

Protocols

ParameterProtocol
NMEA 0183 v2.3, v2.4, v3.0, v4.0Standard Protocol
SBFProprietary Protocol
RTCM3.XInput (MSM included)