State-run network
$600/yr
SC Geodetic Survey
Good to know: $600/yr per login
Where it works
1 stateState-run network for South Carolina.
All plans
| Plan | Price | Term |
|---|---|---|
| Subscription | $600 per subscription | Per subscriber agreement |
- Discounts / exemptions
- No refunds or cancellations; each additional subscription also $600
Coverage
- Where it works
- State-run network for South Carolina.
- 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 14 mountpoints on Oct 17, 2026 (network products plus any single-station streams)
- Needs cell signal?
- Yes: NTRIPThe standard way RTK corrections are sent over the internet. Think of it as internet radio for correction data.Full definition needs internet at the 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 (cell data or a phone hotspot). General rule, not an operator statement.
Connection settings
NTRIP caster
hostscrtn.sc.gov
PortA number that tells your device which "door" on the caster server to use. For NTRIP it's often 2101.Full definition2101
mountsVRS_RTCM31, VRS_RTCM23, CMRxTrimble's own compact correction format. Some networks offer it for Trimble gear and machine control.Full definition, CMRPlus, AGCMR, AGGPSCMRp, AGRTCM31, RTX_CMRX, RTX_RTCM32, VRS_CMR, VRS_CMRPlus, VRS_CMRx, AGCMRp, Test_VRS_CMRx
Not on SCGS's public pages. We confirmed it with a public sourcetable request to the network's own domain. Confirmed live: a public sourcetable request to scrtn.sc.gov:2101 answered on Oct 17, 2026 with 14 mountpoints.
- 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
- Terms / user agreement
- Read terms →
- Support
- RTNReal-time network. A group of base stations spread across an area that work together to send RTK corrections.Full definition@rfa.sc.gov, 803-896-7612
- Last checked
- Oct 17, 2026
Subscriptions are non-refundable.
States covered1
Not listed by the operator: free trial, what's included, a coverage map, mountpoints 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.