Shipping to 
and 
List of RTK correction services and NTRIP Casters in Japan
If you’re in the Japan and need centimeter-level position accuracy, you’ll need access to an RTK correction service or NTRIP Caster via the internet.
National RTK network in Japan
We are not aware of any National RTK Network in Japan. However, the Japanese government has established the QZSS satellite system, also known as Michibiki. This system offers two services through the L6 band (L-band): CLAS, which provides centimeter-level correction data, and MADOCA, which offers decimeter-level correction data across Japan, both available for free.
To access these services, we recommend using our Japan CLAS Corrections L6 Receiver NEO-D9C along with your receiver. This setup will enable you to start receiving correction data via L-band from CLAS, achieving centimeter-level accuracy.
-
Sale!
Made in EuropePluginsJapan CLAS Corrections L6 Receiver NEO-D9C
Original price was: 126,00€.99,00€Current price is: 99,00€. Add to cart
Free international RTK correction services in Japan
If you only need pass-to-pass accuracy, and you don’t need to compare your measurements with local maps done by other companies, social-based RTK networks are the cheapest way to go. There are also free global correction services with calibrated base stations which are available in the Japan. You can use them to achieve centimeter-level accuracy if you are lucky to have a base station close to you (remember that RTK only works up to 35-50 km):
| RTK2GO | Free global community based correction network without quality of service. It is good enough for pass-to-pass centimeter accuracy, but not good for calibrated surveying applications. To view the RTK2GO coverage map, open the page and click "View all" on the top right. Register for the service. |
| IGS | Free global low density high quality correction service. View the coverage map and register for the service. |
| UNAVCO | Free global low-density high-quality correction service. View the UNAVCO coverage map and register for the service. |
We have prepared a tutorial How to connect GNSS/RTK receiver to a NTRIP correction service via PC.
Paid international correction services in Japan
If you could not find a base station in the free options or you need a supplier with quality of service, we prepared a list for you.
| Swift Navigation Skylark | 1 centimeter RTK starting from 69$/month and sub decimeter RTK-SSR from 29$/month for unlimited use. To try Skylark service for FREE, order Skylark 6-Month Trial - no payment needed. |
Set up your own correction service
If you didn’t find anything nearby you or you simply would like to become independent from any service, check out our ready-to-use all-band, full-constellation RTK Base Station. Setup is simple—just follow the User Guide.
Galileo HAS - a free option but lower accuracy compared to RTK
If 40 cm accuracy is sufficient for your project, you can try Galileo HAS, a free, globally available correction service. It works without the internet, NTRIP, or a local base station. While not as precise as RTK, it can still improve positioning accuracy. However, it takes up to 5 minutes to reach full accuracy, compared to just a few seconds with NTRIP.
Not all RTK boards are compatible with Galileo HAS. Here are GNSS RTK receivers that fully support Galileo HAS:
-
-
-
RTK3B BoardssimpleRTK3B Micro Unicore
From 276,00€ This product has multiple variants. The options may be chosen on the product page
