REIL-Net RTK Network
Free
Regional private (dealer)
Free
Karaco (dealer)
Good to know: Single base free; network CorrectionsLive info from a base station about how far off the satellite signals are, so your rover can cancel out the error.Full definition fee based
All plans
| Plan | Price | Term |
|---|---|---|
| ReIL-NET MAX RTK access | $200 (store listing) | |
| Single-baseline | Free for single base (per Seiler table) |
Coverage
- Where it works
- Northeastern Illinois
- Stations
- 55+ 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.Full definition across Chicagoland and Central Illinois
- Official coverage map
- Open map →
- 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
Confirmed live: a public SourcetableThe list of every mount point a caster offers. Your app shows it when you connect without picking one.Full definition request to rtk.karaco.com:12050 answered on Oct 17, 2026 with 9 mountpoints.
- Correction formats
- RTCMThe common format RTK corrections are written in, so different brands can understand each other.Full definition.1 MSM5, RTCM3 (network MAX/NEAREST, VRSVirtual reference station. The network blends nearby stations to create a pretend base right next to you, which keeps the baseline short.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 (incl. L5), GLONASS, Galileo on MSM5 mounts
- 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 VRS / 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
- Last checked
- Oct 17, 2026
States covered1
Not listed by the operator: free trial, discounts, what's included, 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.