State-run network
Free
Michigan DOTDepartment of Transportation. The state agency that runs many of the free state RTK networks.Full definition
Where it works
1 stateState-run network for Michigan.
All plans
| Plan | Price | Term |
|---|---|---|
| Access | Free |
- Contract / terms
- Free; NTRIPThe standard way RTK corrections are sent over the internet. Think of it as internet radio for correction data.Full definition only, 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 every 30 s
Coverage
- Where it works
- State-run network for Michigan.
- 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 6 mountpoints on Oct 17, 2026 (network products plus any single-station streams)
- Needs cell signal?
- Yes: NTRIP 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
host148.149.0.87
PortA number that tells your device which "door" on the caster server to use. For NTRIP it's often 2101.Full definition10000
mountsNETWORK_SOLUTION_RTCM3-GG, NETWORK_LEICAMAX_RTCM3-GG, NETWORK_SOLUTION_VRS_RTCM3, NETWORK_SOLUTION_RTCM3-GPS, NETWORK_LEICAMAX_RTCM3-GPS, NSV31+GLO
Confirmed live: a public sourcetable request to 148.149.0.87:10000 answered on Oct 17, 2026 with 6 mountpoints.
- Correction formats
- RTCMThe common format RTK corrections are written in, so different brands can understand each other.Full definition 2.3, RTCM 3.1, RTCM 3.2 MSMMultiple Signal Messages. A newer kind of RTCM 3 message that carries all satellite systems and signals.Full definition
- 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 (RTCM 3.2 MSM)
- Must send GGA position?
- Yes; send GGA at least every 30 seconds
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
- Last checked
- Oct 17, 2026
Operator lists RTKReal-time kinematic. A way to make GPS accurate to about an inch by getting live corrections from a nearby base station.Full definition as FREE. NTRIP only, on ports 10000-10006 (host given after login).
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.