About Tersus GeoCaster
The Tersus NTRIP Caster Service is a cloud-based NTRIP caster that allows users to broadcast and distribute GNSS correction data over the internet for RTK positioning applications.
Using a compatible Tersus Smart Receiver such as the Luka GNSS Receiver, Oscar Trek, or Oscar Ultimate, corrections can be transmitted directly to GeoCaster through the receiver’s internal cellular modem and SIM card. Once connected, the receiver can operate as an internet-based RTK base station, allowing authorized users to access correction data from virtually anywhere with an internet connection.
Open RTCM Correction Distribution
The Tersus Caster Service broadcasts industry-standard RTCM 3.x correction data that can be received by most GNSS receivers and NTRIP clients supporting RTCM standards. This open format allows corrections from a Tersus Smart Receiver to be used across a wide range of hardware and software platforms, making it an ideal solution for organizations operating mixed equipment fleets or supporting multiple positioning workflows.
Common applications include:
- Machine control and autonomous systems
- UAS and drone RTK/PPK operations
- Land surveying and construction layout
- GIS and asset data collection
- Mobile mapping and reality capture
- Precision agriculture and machine guidance
Requirements
To use the Tersus Caster Service, you will need:
- A compatible Tersus Smart Receiver capable of NTRIP broadcasting
- An active SIM card with a cellular data plan installed in the receiver
- Standard NTRIP Login Credentials account credentials (username and password)
- Internet connectivity at the base station location and at the rover.
Obtaining Login Credentials
This service is provided free of charge with your Tersus Luka, Oscar, Trek and T-series receivers. Please request access and you will be provided Server and Client NTRIP Credentials.
Request Access:
[email protected]
Please let us know the serial number of your Tersus receiver and that you would like to receiver the Standard NTRIP credentials for the caster service.
Connection Settings
| Required Items | Description |
|---|---|
| Host / Server | usacaster1.tersus-gnss.com |
| Port | 2101 |
| Protocol | NTRIP Client |
| Client Username | Provided upon request |
| Client Password | Provided upon request |
| Server Password | Provided upon request |
Example Server Setup in Tersus Nuwa Software: 
Please contact us direct with any questions.