The Polaris network supports delivering corrections over 2 protocols: NTRIP and Polaris. (see: Should I use Polaris or NTRIP?) NTRIP is the industry standard for delivering RTK corrections and is compatible with a wide variety of survey, GIS and robotics equipment. Polaris is an open protocol design by Point One designed to be used by embedded device manufacturers. If you are unsure, use NTRIP to start.
NTRIP Protocol
NTRIP clients require a caster URL, port, mount point, and username & password. Every device in your account has a unique username & password. These are provided on the devices page.
NOTE: NTRIP clients will sometimes ask for an “IP Address” rather than a URL. Use the URL in the “IP Address” field.
We offer corrections on both secure (TLS) and insecure ports. We recommend using the secure port if your client supports TLS. If you are unsure, start with the Standard Port.
Point One RTK Casters
Service |
Caster URL |
Standard Port |
Secure Port (TLS) |
True RTK |
truertk.pointonenav.com |
2101 |
2102 |
Virtual RTK |
virtualrtk.pointonenav.com |
2101 |
2102 |
Mount Points
Mount Point |
Datum(s) |
Epoch |
POLARIS |
ITRF2014 |
Current |
POLARIS_LOCAL |
Automatic by region (see Local Datums table below) |
Automatic by region (see Local Datums table below) |
Local Datums
The POLARIS_LOCAL mount point will automatically use the appropriate local datum for the location from which you are operating. This is an innovative feature that vastly simplifies the workflow in survey and other applications needing local datum support.
Region | Datum | Epoch | Realization |
United States | NAD83 | 2010.0 | 2011 |
Hawaiian Islands | NAD83 | 2010.0 | PA11 |
Guam Northern Marianas | NAD83 | 2010.0 | MA11 |
Canada | NAD83 | 2010.0 | CSRSv7 |
New Zealand | NZGD2000 | 2000.0 | 20180701 |
Australia | GDA2020 | 2020.0 | ITRF2014 |
Continental Europe | ETRS89 | 2010.0 | ETRF2000 |
Netherlands | ETRS89 | 2010.5 | ETRF2000 |
UK | ETRS89 | 2009.756 | ETRF97 |
South Korea | KGD2002 | 2002.0 | ITRF2000 |
Japan | JGD2011 | 2011.395/1997.0 | Dynamic |
Polaris Protocol
It is always recommended to use TLS security when using the Polaris protocol. All production systems should use TLS. Our open source client demonstrates the use of standard libraries like OpenSSL to accomplish this.
Service |
URL |
Secure Port (TLS) |
Insecure Port |
True RTK |
truertk.pointonenav.com |
8090 |
8088 |
Virtual RTK |
virtualrtk.pointonenav.com |
8090 |
8088 |
Regional Servers
For most users, it is recommended to use the global casters listed at the top of the page. However, in some special networking cases (such as behind a VPN or corporate cellular plan) you may need to access the service via a regional caster. Note these regional servers work with both the NTRIP and Polaris protocols.
Regional servers are not available or needed fort the VirtualRTK service.
Region |
Server URL |
True RTK Service |
truertk-us.pointonenav.com |
True RTK Service |
truertk-eu.pointonenav.com |
True RTK Service |
truertk-apac.pointonenav.com |