Helical Antenna RTK
Centimeter-Level Positioning GNSS Module

Multi-Constellation & Multi-Frequency | Built-In Geomagnetic Sensor

Supports RTK Centimeter-Level High-Precision Positioning、

Features At A Glance

The Q43 GNSS Helical RTK Module is a smart positioning antenna that integrates an RTK engine, helical antenna and geomagnetic sensor in one compact unit. The product supports multi-constellation, multi-frequency GNSS signal reception and dual-frequency RTK positioning, delivering stable and reliable high-precision positioning performance, making it an ideal choice for high-precision navigation applications such as intelligent robots, precision agriculture, mining, surveying and mapping, and autonomous driving.

• Integrated design of RTK positioning module and helical antenna, compact size, easy installation, suitable for integrated applications
• Built-in geomagnetic sensor, suitable for compass and electronic compass applications
• Multi-constellation and multi-frequency, supports multi-constellation systems including GPS, BeiDou (BDS), GLONASS, Galileo, and QZSS
• Supports simultaneous output of RTCM 3.3 and NMEA-0183 protocols, up to 10Hz data update rate, compatible with mainstream differential and positioning systems
• Supports A-GNSS positioning enhancement system, significantly reducing time to first fix (TTFF)
• Wide-voltage input, 3.3V ~ 16V operating voltage range, suitable for various power supply environments

Specifications

ANTENNA CHARACTERISTICS	Signal Received	GPS: L1/L5 BDS: B1I/B1C/B2a/B2b GLONASS: G1 GALILEO: E1/E5a/E5b QZSS: L1/L5
	Characteristics Impedance	50Ω
	Polarization	RHCP (Right-Hand Circular Polarization)
	Covering Range	360°
	Peak Gain	2.5dB
	Output VSWR	≤2
	Axial Ratio	≤3dB
AMPLIFIER CHARACTERISTICS	Gain	23dB
	Noise Figure	1.5dB
	Output VSWR	≤2
SYSTEM SPECIFICATIONS	Positioning Module	LB1020
	Geomagnetic Sensor	IST8310
	Operation Voltage	3.3V ~ 16V
	Power Consumption	150mW (Typical)
	Sensitivity (GNSS)	Cold Start: -148dBm
		Re-acquisition: -159dBm
		Tracking: -165dBm
	RTK Accuracy (RMS)	Horizontal: 1cm + 1ppm
		Vertical: 2cm + 1ppm
	Time Accuracy (RMS)	20ns
	Time To First Fix	26s (Typical)
	Initialization Time	6s (Typical)
	Initialize Reliability	>99.9%
	Data Update Rate	10Hz
	Data Format	RTCM 3.3; NMEA-0183
OTHER CHARACTERISTICS	Communication Interface	UART, I2C
	Connector	GH1.25 8PIN
	Operating Temperature Range	-40℃ ~ +85℃
	Storage Temperature Range
	Humidity	≤95%
	Dimensions	37.00 × Φ47.04 (mm)

RTK Mobile Station, RTK Base Station
Centimeter Positioning

Two Q43 GNSS Helical RTK Modules Are Used As An RTK Base Station
And RTK Mobile Station Respectively

By setting up continuous running reference station and outputting the differential correction data on the ground known fixed coordinates using the Q43 module which is configured in base station mode, or by paid RTK base station enhanced services, transmitting differential correction data to Q43 terminals which uploading rough positioning data, the terminals, with errors like multipath refraction, Ionospheric, and Tropospheric Refraction, are able to calculate error value in real time, for centimeter-level positioning in seconds.

Concurrent Reception Of Multi-GNSS Systems

Supports Multi-Constellation Systems, Including GPS, BDS, GLONASS, Galileo, And QZSS

Supports Positioning Enhancement System

Supports A-GNSS Positioning Enhancement System, Significantly Reducing Time To First Fix And Simultaneously Improving The Accuracy, Integrity, Reliability, And Availability Of Positioning And Navigation

Built-In Geomagnetic Sensor

Suitable For Compass And Electronic Compass Applications

Compatible With Multiple Programming Platforms

Provides Demos And User Manuals For Raspberry Pi / Raspberry Pi Pico / Jetson Orin / ESP32 / Arduino, Enabling Easier Development Integration And Strong Scalability

Pinout Definitions

Hardware Connection Examples

Connects To A PC / Raspberry Pi / Jetson Orin Series Board Via USB To Serial Port Module

Connects To A Raspberry Pi / Raspberry Pi Pico / Jetson Orin / ESP32 / Arduino Board Via GH1.25 Header

* for reference only, the Raspberry Pi 5 and USB To UART Module are NOT included.

Outline Dimensions

[] Q43 GNSS Helical RTK Module

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Email(support)

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