State-run network
$495/yr
LSU Center for GeoInformatics
Good to know: $495/yr (10 hrs), $1,995/yr (50 hrs), $3,500/yr unlimited RTKReal-time kinematic. A way to make GPS accurate to about an inch by getting live corrections from a nearby base station.Full definition, $5,000/yr full membership
Where it works
1 stateState-run network for Louisiana.
All plans
| Plan | Price | Term |
|---|---|---|
| 1-yr unlimited RTK RoverThe receiver that moves around the job, like a survey pole or a drone. It uses the base's corrections to find its exact spot.Full definition (NTRIPThe standard way RTK corrections are sent over the internet. Think of it as internet radio for correction data.Full definition) | $3,500 | 1 year |
| 10 hrs RTK rover | $495 | 1 year |
| 50 hrs RTK rover | $1,995 | 1 year |
| GIS DGNSS unlimited | $995 | |
| Full RTNReal-time network. A group of base stations spread across an area that work together to send RTK corrections.Full definition membership | $5,000 |
Coverage
- Where it works
- State-run network for Louisiana.
- Stations
- Not published; the public SourcetableThe list of every mount point a caster offers. Your app shows it when you connect without picking one.Full definition listed 31 mountpoints on Oct 17, 2026 (network products plus any single-station streams)
- Needs cell signal?
- Yes: NTRIP needs internet at the rover (cell data or a phone hotspot). General rule, not an operator statement.
Connection settings
NTRIP caster
hostC4Gnet.XYZ
PortA number that tells your device which "door" on the caster server to use. For NTRIP it's often 2101.Full definition9000
mountsGLN_CMRx, GLN_NetDGPS, GLN_RTCM3_2, NetDGPS, PPP_GNSS_CMRp_NAD83, PPP_GNSS_CMRx_NAD83, PPP_GNSS_NetDGPS_NAD83, PPP_GNSS_RTCM3_1_NAD83, PPP_GNSS_RTCM3_2_NAD83, VRS_GNSS_CMRp_NAD83, VRS_GNSS_CMRx_NAD83, VRS_GNSS_NetDGPS_NAD83, VRS_GNSS_RTCM3_1_NAD83, VRS_GNSS_RTCM3_2_NAD83 … (31 in total)
Confirmed live: a public sourcetable request to C4Gnet.XYZ:9000 answered on Oct 17, 2026 with 31 mountpoints.
- Mount types
- Network (PPP/VRS-type processors) and Nearest Single Base
- Satellites (ConstellationOne family of navigation satellites, like GPS, GLONASS, Galileo or BeiDou. More constellations means more satellites to use.Full definition)
- GPSThe US satellite navigation system. People often use "GPS" to mean all satellite positioning.Full definition, GLONASS, Galileo, BeiDou on GREC mounts
- Datum / EpochOne moment of GPS measurement. A receiver logging at 1 Hz records one epoch every second.Full definition / GeoidA lumpy, imaginary "sea level" surface around the whole Earth. Elevations are measured from it.Full definition
- NAD83 (frame shown in each Mount pointOne specific correction stream on a caster, like one channel on a radio. Each one comes from a certain station or network setup.Full definition name)
- Must send GGAA short message your rover sends with its rough location. VRS and nearest-station streams need it to know where you are.Full definition position?
- Yes for VRSVirtual reference station. The network blends nearby stations to create a pretend base right next to you, which keeps the baseline short.Full definition / network / nearest-base mountpoints (your rover must send its position as an NMEAA common text format GPS receivers use to report position and status. GGA is one NMEA message.Full definition GGA message). General rule based on the mount types.
Sign-up steps
No step-by-step guide is published. Start at the sign-up page.
- Sign-up page
- Go to sign-up →
Fine print
- Support
- [email protected]
- Last checked
- Oct 17, 2026
Statewide, with 100+ CORSContinuously Operating Reference Station. A permanent GPS receiver that records satellite data all day, every day.Full definition. Sold through the LSU store.
States covered1
Not listed by the operator: free trial, discounts, what's included, a coverage map and a few other details. Ask them before you sign up if these matter to you.
No user reliability reports yet. Used it in the field? Tell us how it went.