DATA CHECKED OCT 2026
West Virginia / State-run network

WVRTN

Free  West Virginia DOTDepartment of Transportation. The state agency that runs many of the free state RTK networks.More

Plans & pricing

Free
Not published
Constellations
GPSThe US satellite navigation system. People often use "GPS" to mean all satellite positioning.More, GLONASS (Galileo, BeiDou on RTX mounts)
Correction formats
RTCMThe common format RTK corrections are written in, so different brands can understand each other.More.1, RTCM 3.4 MSMMultiple Signal Messages. A newer kind of RTCM 3 message that carries all satellite systems and signals.More, CMRxTrimble's own compact correction format. Some networks offer it for Trimble gear and machine control.More, CMRx
Datum / Reference frameA precise version of a datum, defined by real stations on the ground. ITRF2020 and NAD 83(2011) are examples.More
NAD 83(2011)The official US datum for horizontal position right now. Most state networks give coordinates in it.More

NTRIP caster

host34.228.171.115
PortA number that tells your device which "door" on the caster server to use. For NTRIP it's often 2101.More2101
mountsvRTCM3_1, vRTCM3_2, vCMRX, vCMRplus, RTX_CMRx
CasterThe internet server that hands out correction streams. Your rover logs in to it, like tuning into a radio station.More IP and port are published on the operator homepage. Price isn't stated.
Checked 2026-10-16 Sources: [1] · Blank fields mean the operator doesn't publish it · Report a change

Reliability reports

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