XYZRVB TechnologiesGNSS & NTRIP Control

Professional RTK correction infrastructure

Professional GNSS NTRIP Caster for RTK Networks

Deploy and operate real-time GNSS correction services for RTK rovers. XYZRVB distributes RTCM streams from reference stations, manages rover access, monitors live sessions and incidents, and keeps operational RINEX archives from one control environment.

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One NTRIP Caster for GNSS correction distribution and operations

XYZRVB provides the distribution layer between GNSS reference stations and field rovers. A station publishes its RTCM stream to a named mountpoint; authenticated rovers connect to the caster and receive the correction data required by their RTK positioning engines.

The service also supervises reference stations and rover sessions, identifies interruptions, reviews connection events, inspects GGA positions and RTK status, manages credentials, and retains RINEX data.

For a detailed operational view, see the GNSS Control Center. For network design and coverage concepts, see RTK and NRTK networks.

How a GNSS NTRIP Caster works

NTRIP means Networked Transport of RTCM via Internet Protocol. An NTRIP Server or reference receiver sends a correction stream to the caster. The caster authenticates the source, associates the stream with a mountpoint and forwards the RTCM bytes to authorized NTRIP Clients, typically RTK rovers.

The caster does not calculate the rover position. It provides controlled, reliable Internet transport between the reference receiver or network engine and the rover.

Mountpoints and the NTRIP source table

A mountpoint is the logical name of a correction stream. The NTRIP source table (sourcetable) describes available streams, including their names, RTCM format, constellations, approximate location and whether rover GGA feedback is required.

RTCM correction streams for RTK rovers

RTCM is the standard message family most widely used to transmit real-time GNSS reference information and observations. XYZRVB forwards RTCM as binary data without modifying the stream delivered to rovers.

Messages such as RTCM 1005 and 1006 describe reference-station coordinates, while MSM messages carry observations for the available constellations. See the RTCM guide for message-level details.

Operate the NTRIP service, not just the server

A production RTK service must answer practical questions quickly: Is the reference station still sending data? Which mountpoint is a rover using? Is its GGA position plausible? Did the rover reach Fix? Why was a connection rejected? When did an outage begin and recover?

XYZRVB brings these signals into the control center with station availability, last-packet age, rover sessions, events, alerts, recent positions and RINEX archives.

GNSS NTRIP Caster FAQ

What is an NTRIP Caster?

An NTRIP Caster receives GNSS correction streams from reference stations or network engines and distributes them to authorized NTRIP clients through named mountpoints.

Is a GNSS Caster different from an NTRIP Caster?

“GNSS Caster” commonly describes the GNSS correction-distribution function. “NTRIP Caster” identifies the Internet transport architecture used to provide it.