All states / North Carolina

RTK corrections in North Carolina

Paid  14 options · NC RTNReal-time network. A group of base stations spread across an area that work together to send RTK corrections.More · NC Geodetic Survey

All 14 RTK options in North Carolina

Every way to get RTKReal-time kinematic. A way to make GPS accurate to about an inch by getting live corrections from a nearby base station.More CorrectionsLive info from a base station about how far off the satellite signals are, so your rover can cancel out the error.More here, free and paid, side by side: the state network, regional or private networks, and nationwide services.

OptionTypePriceNotes
NC RTN
State-run
Paid$500 one-time for the first RTK login (second included); $250 one-time for each one after; paid by checkNC Geodetic Survey
Point One Navigation Polaris
Nationwide
PaidVirtual RTK $42/mo per license (~10 cm); True RTK $125/mo per license (1-3 cm); annual discountsUS nationwide. Check the provider's coverage map for your area.
GEODNET RTK
Nationwide
Paid$40/mo or $400/yr per deviceGlobal community-built network. Check the provider's coverage map for your area.
RTKdata
Nationwide
Paid$40/mo, $400/yr, or $1,920 for 5 yrs per deviceGlobal. Check the provider's coverage map for your area.
E38 RTK Premium
Nationwide
PaidFrom $100 (shortest term; see page for durations)Reseller; coverage varies by state. Check the provider's coverage map for your area.
Emlid Corrections
Nationwide
Paid1 yr included with eligible Reach receivers; top-up $699/1 yr or $1,199/3 yr per device (via E38)Emlid receivers only. Check the provider's coverage map for your area.
u-blox PointPerfect Flex
Nationwide
PaidFrom $5.90/mo (up to 100 hrs); 30-day free trialRTK-SSR, global. Check the provider's coverage map for your area.
Swift Navigation Skylark
Nationwide
PaidFrom $69/mo (1 cm RTK) or $29/mo (sub-decimeter RTK-SSR) per ArduSimpleCheck the provider's coverage map for your area.
Leica (HxGN) SmartNet
Nationwide
PaidNot publishedPrice not published. Check the provider's coverage map for your area.
Trimble VRS Now
Nationwide
PaidNot publishedPrice not published. Check the provider's coverage map for your area.
Topcon Topnet Live
Nationwide
Paid$1,800 new US subscription (Topcon store); monthly/project terms via dealersUS network, 200 stations added Jan 2025; works with any network 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.More. Check the provider's coverage map for your area.
Carlson SkyNet RTN
Nationwide
Paid$1,500/yr; 14-day free trialUS nationwide, single NTRIPThe standard way RTK corrections are sent over the internet. Think of it as internet radio for correction data.More Mount pointOne specific correction stream on a caster, like one channel on a radio. Each one comes from a certain station or network setup.More, 1,700+ bases. Check the provider's coverage map for your area.
RTK2GO
Nationwide
FreeFree community CasterThe internet server that hands out correction streams. Your rover logs in to it, like tuning into a radio station.More; no quality guaranteesCoverage depends on volunteer bases. Check the provider's coverage map for your area.
NOAA NGS CORS
Nationwide
FreeFree post-processing data (RINEXA standard file format for raw GPS data. Any brand of receiver or software can read it.More); not a real-time RTK serviceUse for PPKPost-processed kinematic. Like RTK, but the corrections are applied after the job using recorded data, so no live link is needed.More, not live RTK. Check the provider's coverage map for your area.
NOAA CORS (NCN)Free Post-processing onlyFree69 station(s) in state. RINEX for PPK and OPUSOnline Positioning User Service. A free NOAA website: upload a GPS file and it emails back the precise position of that spot.More, not live RTK. Stations ↓

NC RTN

Paid
Operator
NC Geodetic Survey
Access
Paid
Price
$500 one-time for the first RTK login (second included); $250 one-time for each one after; paid by check
Coverage
North Carolina

NTRIP caster

casterProvided by the operator after registration
One-time fees, not annual. CORSContinuously Operating Reference Station. A permanent GPS receiver that records satellite data all day, every day.More data download is free.
Sign up / request access →Network info & station mapFull network details →
✓ VerifiedChecked 2026-10-16 · operator source · Sources: [1] [2]

PPK with NOAA CORS in North Carolina

NOAANational Oceanic and Atmospheric Administration. The US agency that includes NGS and runs the CORS network.More's permanent Base stationA GNSS receiver sitting still on a known spot. It figures out how wrong the satellite signals are right now and shares that as corrections.More record satellite data all day and post it free. You can download those files and use them after a job to correct your drone or rover data (PPK), or to pin down your own base with OPUS. This is not live RTK. This state has 69 working station(s). Each NGSNational Geodetic Survey. The part of NOAA that runs the official US coordinate system, CORS and OPUS.More site log has the station's name and details.

ASUBDOBSDURHGASTHIPTMARINC77NCALNCBCNCBUNCBXNCCANCCHNCCINCCONCCRNCECNCELNCETNCFANCFFNCGANCGONCHENCHINCJANCJLNCJVNCKNNCLENCLLNCLUNCMGNCMONCMRNCMUNCNANCNBNCNENCNWNCPONCRBNCRDNCRENCRONCRTNCRXNCSANCSFNCSHNCSLNCSONCSPNCSRNCSTNCSWNCSYNCTANCTRNCWANCWCNCWHNCWJNCWLNCWMNCWRNCZOP779SNFD
Relative station positions (plotted from lat/lon, no basemap).
Station IDLat, LonNGS links
ASUB36.2141, -81.6818Coordinates · Site log
DOBS36.4254, -80.7199Coordinates · Site log
DURH35.9962, -78.8995Coordinates · Site log
GAST35.3111, -81.1888Coordinates · Site log
HIPT35.9657, -80.0136Coordinates · Site log
MARI35.6537, -81.9545Coordinates · Site log
NC7735.1226, -80.9163Coordinates · Site log
NCAL35.3381, -80.2135Coordinates · Site log
NCBC35.3727, -83.5065Coordinates · Site log
NCBU36.0916, -79.4367Coordinates · Site log
NCBX35.2661, -75.5519Coordinates · Site log
NCCA35.3417, -79.3847Coordinates · Site log
NCCH34.3445, -77.8750Coordinates · Site log
NCCI35.0177, -76.3154Coordinates · Site log
NCCO35.3765, -80.5642Coordinates · Site log
NCCR35.9158, -76.4737Coordinates · Site log
NCEC35.6051, -77.3654Coordinates · Site log
NCEL36.3413, -76.2581Coordinates · Site log
NCET34.6538, -78.5199Coordinates · Site log
NCFA35.0340, -78.8708Coordinates · Site log
NCFF33.9606, -77.9386Coordinates · Site log
NCGA36.4369, -76.7213Coordinates · Site log
NCGO35.4214, -78.0585Coordinates · Site log
NCHE35.3561, -82.5011Coordinates · Site log
NCHI35.7420, -81.3086Coordinates · Site log
NCJA36.4085, -77.4376Coordinates · Site log
NCJL35.7813, -79.0344Coordinates · Site log
NCJV34.7463, -77.4533Coordinates · Site log
NCKN34.9418, -77.9805Coordinates · Site log
NCLE35.8148, -80.2295Coordinates · Site log
NCLL35.4202, -78.8112Coordinates · Site log
NCLU34.6268, -79.0777Coordinates · Site log
NCMG35.7075, -81.6567Coordinates · Site log
NCMO35.5797, -80.8035Coordinates · Site log
NCMR34.9819, -80.5238Coordinates · Site log
NCMU35.0686, -83.9665Coordinates · Site log
NCNA35.9692, -78.0198Coordinates · Site log
NCNB35.1128, -77.1040Coordinates · Site log
NCNE36.0778, -81.9112Coordinates · Site log
NCNW36.1665, -81.1326Coordinates · Site log
NCPO34.9926, -80.1772Coordinates · Site log
NCRB35.3210, -83.7969Coordinates · Site log
NCRD35.7638, -78.5790Coordinates · Site log
NCRE36.3619, -79.6657Coordinates · Site log
NCRO34.9644, -79.7966Coordinates · Site log
NCRT35.5954, -75.4694Coordinates · Site log
NCRX36.3911, -78.9985Coordinates · Site log
NCSA35.7116, -80.4322Coordinates · Site log
NCSF35.5638, -78.3363Coordinates · Site log
NCSH35.2816, -81.4912Coordinates · Site log
NCSL33.9826, -78.3901Coordinates · Site log
NCSO35.3947, -76.3255Coordinates · Site log
NCSP35.3655, -81.9159Coordinates · Site log
NCSR36.4978, -81.1147Coordinates · Site log
NCST35.8555, -80.8487Coordinates · Site log
NCSW35.5961, -82.4234Coordinates · Site log
NCSY35.3479, -83.2065Coordinates · Site log
NCTA35.8825, -77.5726Coordinates · Site log
NCTR35.3672, -79.8702Coordinates · Site log
NCWA35.5597, -77.0587Coordinates · Site log
NCWC36.3721, -80.1849Coordinates · Site log
NCWH34.2805, -78.7165Coordinates · Site log
NCWJ36.3931, -81.4784Coordinates · Site log
NCWL35.7073, -77.9325Coordinates · Site log
NCWM35.8305, -77.0351Coordinates · Site log
NCWR36.3949, -78.1705Coordinates · Site log
NCZO35.6304, -79.7649Coordinates · Site log
P77935.2019, -82.8725Coordinates · Site log
SNFD35.4735, -79.1581Coordinates · Site log
  • Download: daily RINEX files (a standard GPSThe US satellite navigation system. People often use "GPS" to mean all satellite positioning.More file type) at geodesy.noaa.gov/corsdata/rinex/YYYY/DDD/ssss/ or the AWS mirror. Custom time spans are available from UFCORS.
  • How often it records: after 30 days, NGS thins daily files to one reading every 30 seconds. Full-rate data is available from NOAA NCEI CLASS.
  • Set your own base: OPUS. See our OPUS how-to.
PPK how-to →OPUS how-to
Source: NGS CORS data access · station list from NGS ITRFInternational Terrestrial Reference Frame. A worldwide datum. In the US it's about a meter different from NAD 83.More coordinate file (Oct 14, 2026).

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