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RTK corrections in Texas

Paid  15 options · TxDOT RTNReal-time network. A group of base stations spread across an area that work together to send RTK corrections.More · Texas DOTDepartment of Transportation. The state agency that runs many of the free state RTK networks.More · 1 regional/private network(s)

All 15 RTK options in Texas

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
TxDOT RTN
State-run
RestrictedNot publicTexas DOT
AllTerra Central RTKNet
Regional / private
Paid$2,000/yrAllTerra Central (formerly Western Data Systems). One subscription covers all four states; strongest around metro areas
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 onlyFree152 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 ↓

TxDOT RTN

Restricted
Operator
Texas DOT
Access
Restricted
Price
Not public
Coverage
Texas

NTRIP caster

casterProvided by the operator after registration
TxDOT staff and contractors only. The access page loads, but it doesn't mention the RTN explicitly.
Sign up / request access →Full network details →
Partially verifiedChecked 2026-10-16 · operator source · Sources: [1]

PPK with NOAA CORS in Texas

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 152 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.

ADKSDWI1JGS2KVTXLCSMLKHUMDO1NETPP807ROD1SAM2TXABTXACTXADTXAITXAMTXB3TXBATXBCTXBETXBITXBKTXBNTXBOTXBRTXBSTXBTTXBUTXBVTXBXTXC1TXC2TXC3TXCCTXCDTXCETXCGTXCHTXCITXCKTXCLTXCMTXCNTXCRTXCSTXCTTXCUTXDATXDCTXDETXDLTXDRTXEATXEDTXELTXENTXEPTXESTXFETXFRTXGATXGETXGLTXGUTXGZTXHATXHETXHITXHMTXHPTXHRTXJATXJCTXKCTXKETXKMTXKOTXKRTXL1TXLATXLETXLFTXLITXLLTXLPTXLRTXLUTXLVTXM1TXMATXMCTXMETXMHTXMNTXMVTXMWTXMXTXNATXNCTXNOTXOETXOLTXORTXOZTXP1TXP2TXPATXPDTXPLTXPMTXPOTXPRTXPSTXPTTXPVTXPYTXQUTXRLTXRMTXRVTXS1TXS3TXSATXSDTXSETXSFTXSGTXSLTXSMTXSNTXSOTXSRTXSSTXSTTXSYTXTHTXTITXTRTXTUTXTYTXUVTXVATXVETXWATXWETXWFTXWHTXWLTXWTTXZAZFW1ZHU1
Relative station positions (plotted from lat/lon, no basemap).
Station IDLat, LonNGS links
ADKS29.7910, -95.5864Coordinates · Site log
DWI129.0136, -95.4037Coordinates · Site log
JGS230.0454, -94.8905Coordinates · Site log
KVTX27.5460, -97.8929Coordinates · Site log
LCSM30.0085, -97.1255Coordinates · Site log
LKHU29.9135, -95.1458Coordinates · Site log
MDO130.6805, -104.0150Coordinates · Site log
NETP29.7912, -95.3342Coordinates · Site log
P80730.4946, -98.8220Coordinates · Site log
ROD130.0724, -95.5268Coordinates · Site log
SAM230.2390, -97.8365Coordinates · Site log
TXAB32.5033, -99.7568Coordinates · Site log
TXAC29.7778, -94.6715Coordinates · Site log
TXAD32.3080, -102.5436Coordinates · Site log
TXAI27.7790, -98.0971Coordinates · Site log
TXAM35.1536, -101.8785Coordinates · Site log
TXB331.1495, -99.3361Coordinates · Site log
TXBA31.7656, -106.4464Coordinates · Site log
TXBC28.9998, -95.9724Coordinates · Site log
TXBE28.4237, -97.7355Coordinates · Site log
TXBI31.7607, -99.9681Coordinates · Site log
TXBK29.3048, -100.4083Coordinates · Site log
TXBN33.6067, -96.1753Coordinates · Site log
TXBO29.8209, -98.7533Coordinates · Site log
TXBR35.6403, -101.3979Coordinates · Site log
TXBS30.1129, -97.2906Coordinates · Site log
TXBT31.0327, -97.4790Coordinates · Site log
TXBU30.7505, -98.1844Coordinates · Site log
TXBV25.9384, -97.5365Coordinates · Site log
TXBX30.7178, -96.3966Coordinates · Site log
TXC131.8137, -94.1603Coordinates · Site log
TXC230.8765, -96.9723Coordinates · Site log
TXC331.8098, -99.4221Coordinates · Site log
TXCC27.7408, -97.4417Coordinates · Site log
TXCD35.1016, -101.3626Coordinates · Site log
TXCE31.4228, -102.3576Coordinates · Site log
TXCG35.6881, -102.3291Coordinates · Site log
TXCH34.4596, -100.2783Coordinates · Site log
TXCI35.9203, -100.3783Coordinates · Site log
TXCK31.3226, -95.4359Coordinates · Site log
TXCL34.9512, -100.9134Coordinates · Site log
TXCM29.7028, -96.5773Coordinates · Site log
TXCN30.3489, -95.4412Coordinates · Site log
TXCR33.6109, -95.0718Coordinates · Site log
TXCS28.5352, -99.8505Coordinates · Site log
TXCT28.4421, -99.2446Coordinates · Site log
TXCU29.1339, -97.2763Coordinates · Site log
TXDA32.8000, -96.6729Coordinates · Site log
TXDC33.2362, -97.6087Coordinates · Site log
TXDE33.2105, -97.1628Coordinates · Site log
TXDL36.0778, -102.5387Coordinates · Site log
TXDR29.3644, -100.8995Coordinates · Site log
TXEA32.4028, -98.8089Coordinates · Site log
TXED28.9682, -96.6340Coordinates · Site log
TXEL31.6915, -106.2716Coordinates · Site log
TXEN31.2175, -99.8600Coordinates · Site log
TXEP28.7083, -100.4775Coordinates · Site log
TXES32.3697, -96.8628Coordinates · Site log
TXFE27.8467, -98.6174Coordinates · Site log
TXFR30.2460, -98.8468Coordinates · Site log
TXGA29.3279, -94.7726Coordinates · Site log
TXGE33.1320, -96.0555Coordinates · Site log
TXGL31.4722, -98.5680Coordinates · Site log
TXGU36.2698, -101.4056Coordinates · Site log
TXGZ29.5233, -97.4392Coordinates · Site log
TXHA29.4511, -96.9218Coordinates · Site log
TXHE30.0990, -96.0635Coordinates · Site log
TXHI31.9892, -97.1298Coordinates · Site log
TXHM31.6995, -98.1068Coordinates · Site log
TXHP31.3339, -93.8649Coordinates · Site log
TXHR34.8457, -102.4066Coordinates · Site log
TXJA33.1948, -98.1456Coordinates · Site log
TXJC30.2664, -98.3973Coordinates · Site log
TXKC28.8739, -97.9043Coordinates · Site log
TXKE32.4097, -97.3232Coordinates · Site log
TXKM31.8426, -103.1087Coordinates · Site log
TXKO30.3955, -94.3324Coordinates · Site log
TXKR30.0649, -99.1215Coordinates · Site log
TXL133.9384, -102.3495Coordinates · Site log
TXLA32.7614, -101.9440Coordinates · Site log
TXLE29.7393, -99.7613Coordinates · Site log
TXLF31.3563, -94.7183Coordinates · Site log
TXLI30.0559, -94.7710Coordinates · Site log
TXLL30.7335, -98.6786Coordinates · Site log
TXLP28.9421, -99.8499Coordinates · Site log
TXLR27.5139, -99.4479Coordinates · Site log
TXLU33.5354, -101.8428Coordinates · Site log
TXLV30.7452, -94.9217Coordinates · Site log
TXM133.7378, -102.7597Coordinates · Site log
TXMA32.5353, -94.2886Coordinates · Site log
TXMC31.1321, -102.2325Coordinates · Site log
TXME34.7239, -100.5294Coordinates · Site log
TXMH31.5577, -102.8940Coordinates · Site log
TXMN31.9101, -97.6619Coordinates · Site log
TXMV33.1618, -95.2211Coordinates · Site log
TXMW32.8042, -98.1429Coordinates · Site log
TXMX31.5951, -96.5244Coordinates · Site log
TXNA32.0418, -96.5387Coordinates · Site log
TXNC31.6678, -94.6690Coordinates · Site log
TXNO33.7757, -97.7260Coordinates · Site log
TXOE31.8735, -102.3140Coordinates · Site log
TXOL33.3560, -98.7497Coordinates · Site log
TXOR30.1252, -93.8204Coordinates · Site log
TXOZ30.7262, -101.1971Coordinates · Site log
TXP133.1825, -101.3799Coordinates · Site log
TXP233.1822, -102.8182Coordinates · Site log
TXPA33.6742, -95.5570Coordinates · Site log
TXPD34.0123, -100.2896Coordinates · Site log
TXPL28.9820, -98.4793Coordinates · Site log
TXPM35.5341, -100.9287Coordinates · Site log
TXPO27.8395, -97.0699Coordinates · Site log
TXPR26.2085, -98.1893Coordinates · Site log
TXPS28.8888, -99.0820Coordinates · Site log
TXPT29.9474, -93.9529Coordinates · Site log
TXPV28.6382, -96.6185Coordinates · Site log
TXPY36.3934, -100.8155Coordinates · Site log
TXQU34.2994, -99.7550Coordinates · Site log
TXRL31.9004, -100.4694Coordinates · Site log
TXRM26.5180, -99.0850Coordinates · Site log
TXRV26.4942, -97.7808Coordinates · Site log
TXS131.5260, -94.1277Coordinates · Site log
TXS332.7118, -102.6298Coordinates · Site log
TXSA31.4143, -100.4729Coordinates · Site log
TXSD26.7160, -98.4453Coordinates · Site log
TXSE29.5908, -97.9977Coordinates · Site log
TXSF36.3381, -102.0618Coordinates · Site log
TXSG32.8557, -97.3442Coordinates · Site log
TXSL34.4741, -101.3141Coordinates · Site log
TXSM29.8779, -97.9027Coordinates · Site log
TXSN30.1526, -102.4095Coordinates · Site log
TXSO32.1412, -101.8076Coordinates · Site log
TXSR33.5916, -96.6070Coordinates · Site log
TXSS30.5812, -100.6440Coordinates · Site log
TXST32.2326, -98.1822Coordinates · Site log
TXSY33.6024, -99.2584Coordinates · Site log
TXTH33.1790, -99.1679Coordinates · Site log
TXTI28.4680, -98.5643Coordinates · Site log
TXTR27.7352, -99.6839Coordinates · Site log
TXTU34.5337, -101.7394Coordinates · Site log
TXTY32.2496, -95.3936Coordinates · Site log
TXUV29.2005, -99.8271Coordinates · Site log
TXVA28.8349, -96.9096Coordinates · Site log
TXVE34.1329, -99.2832Coordinates · Site log
TXWA31.5777, -97.1105Coordinates · Site log
TXWE32.7589, -97.8235Coordinates · Site log
TXWF33.8539, -98.5056Coordinates · Site log
TXWH29.3246, -96.1118Coordinates · Site log
TXWL34.8497, -100.2021Coordinates · Site log
TXWT31.8701, -106.4427Coordinates · Site log
TXZA26.9161, -99.2800Coordinates · Site log
ZFW132.8306, -97.0665Coordinates · Site log
ZHU129.9619, -95.3314Coordinates · 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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