Quick start of using OpenRTK330LI EVK for RTK and INS

The EVK hosts the main positioning module OpenRTK330LI with built-in GNSS RTK and INS functions. It features:

• Multi-constellation dual-frequency (L1/L2) GNSS satellite signals
• 1 Hz RTK solution and 100 Hz INS PVA solution
• 10 HZ RTCM data and 100 HZ IMU data output
• Rich peripheral interfaces
• ...

Prerequisites

Hardware

• GNSS multi-frequency antenna with SMA interfaces
• Micro-USB cable
• Laptop
• RJ45 cable
• (Optional) 12V DC adapter

Software

• ans-devices.exe v2.7.0
• (OR) strsvr from RTKLIB
• (Optional) NTRIP caster SNIP by rtk2go

RTK correction service

Choose one of these open/commercial services and use the NTRIP conredentials provided:

• rtk2go
• CentipedeRTK
• Geodnet
• Onocoy
• RTK Direct
• etc...

Or use your own base station with a NTRIP caster

• OpenRTK330LI EVK (configure it into a base station that will be described in another section of this text)
• rtkbase by Stefal

Go for RTK positioning

Connect

As desribed by the photo below:

• usb to laptop for power and UART data io
• Ethernet to receive RTK correction or base station RTCM data

Operation

Follow the steps in the manual for the RTK operations and data logging/parsing.

Note the RTK positioing succeed if all three colored mini LEDs are blinking:

• Left yellow LED: GNSS signal valid
• Middle red LED: RTK correction received and valid
• Right green LED: GNSS positioning valid