Product Overview

Product Introduction

Overview

OneRTK Ultra is a new multi-band, multi-constellation satellite receiver with multiple data interfaces. It is suitable for drones, fully automatic robots, precision control, unmanned driving, and other applications. It can track all global satellite navigation systems (GNSS) and has unique anti-interference and anti-spoofing mitigation technology; LOCK+ enables robust tracking under high vibration and impact; APME+ multipath mitigation to separate direct signals and signals reflected from nearby buildings; it provides advanced protection against ionospheric interference, which is particularly effective in complex environments, and provides a performance benchmark for mass market GNSS positioning. It is currently being widely used in the GNSS mass market.

Product Features

Dual antennas provide accurate and reliable pitch/roll/heading output
Satellite signals can be tracked smoothly during high-frequency vibration and rapid movement
Unique anti-interference and anti-spoofing mitigation technology effectively identifies narrowband and broadband interference and spoofing signals
The introduction of multipath suppression algorithm enables the system to accurately identify forged signals and avoid positioning drift.
Advanced autonomous integrity monitoring technology, real-time data quality assessment, timely detection and elimination of bad signals
Advanced anti-ionospheric interference technology, especially effective in complex environments
OSNMA encrypted anti-spoofing algorithm to ensure effective distinction between real satellite signals and decoy navigation data.
Compatible with Ardupilot and PX4 firmware
Supports NMEA 0183, SBF, RINEX, RTCM, CMR/CMR+ standards
Up to 500Hz navigation update rate
Rich communication interfaces, including CAN interface, UART, LAN port, PPS

Technical Parameters

parameter	Details	Numeric
Satellite reception	GPS:L1C/ L2P(Y), L2C BDS:B1, B2I, B3I GLONASS:L1C/A, L2C/A Galileo:E1, E5b QZSS:L1C/ L1C/B, L2C SBAS:EGNOS, WAAS, GAGAN, MSAS, SDCM (L1)
Tracking performance (C/N0 threshold)	Tracking and navigation sensitivity	20 dB-Hz
Tracking performance (C/N0 threshold)	Capture sensitivity	33 dB-Hz
Positioning time	Cold Start	＜45s
	Warm start	＜20s
	Recapture	1s
RTK Status	Horizontal position accuracy	0.6cm+0.5ppm
	Elevation accuracy	1cm+1ppm
	Initialization time	7s
Other positioning status		level vertical
	Standalone	1.2m 1.9m
	SBAS	0.6m 0.8m
	DGNSS	0.4m 0.7m
Timing accuracy	xPPS Output	5ns
Timing accuracy	Event accuracy	＜20ns
Delay	99％	＜10ms
Speed accuracy		0.03m/s
Directional accuracy (dual antenna)		Heading Pitch/Roll
	1m antenna spacing	0.15° 0.25°
	5m antenna spacing	0.03° 0.05°
Restrictions	Power Limitation	≤ 4 g
	Height Restriction	18000 m
	Speed Limit	515 m/s
Baud rate	115200-4M bps (default 115200bps)
Data update frequency	Positioning and observations	100 Hz
	Positioning and Direction (Dual Antenna) Standalone, SBAS, DGPS	50Hz
	RTK	20Hz

LED Status Definition

LOG red light: If it is off, it means the memory card is not recognized. If it is always on, it means the memory card is recognized. If it is flashing, it means the log is being recorded.

PPS green light: flashes according to the set duty cycle, the default is once every 0.5 seconds.

PVT orange light: Off when no satellite is received, and always on after receiving satellite positioning.

PWR red light: The power light is always on after power is turned on.

CAN green light: When CAN communication is connected, the green light flashes once a second; if CAN communication is not connected, it flashes quickly.

RTK blue light: It is always on when entering rtkfixed state and off when entering 3D positioning state.

Interface Definition

Size and mounting hole

OneRTK Ultra

Using Ardupilot Firmware

Last modified: 2025-10-13Powered by

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