State-run network
Free
Arkansas DOTDepartment of Transportation. The state agency that runs many of the free state RTK networks.Full definition
Good to know: Free (signed user agreement required)
Where it works
1 stateState-run network for Arkansas.
All plans
| Plan | Price | Term |
|---|---|---|
| Access | Free (signed user agreement required) |
Coverage
- Where it works
- State-run network for Arkansas.
- 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 8 mountpoints on Oct 17, 2026 (network products plus any single-station streams)
- 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
hostgps.ardot.gov
PortA number that tells your device which "door" on the caster server to use. For NTRIP it's often 2101.Full definition2101
mountsMS_CMRp, MS_RTCM31, MS_CMRx, ARDOT_RTX_CMRx, ARDOT_RTX_CMRp, ARDOT_RTX_RTCM31, ARDOT_RTX_RTCM34, MS_RTCM34
Confirmed live: a public sourcetable request to gps.ardot.gov:2101 answered on Oct 17, 2026 with 8 mountpoints.
- Datum / EpochOne moment of GPS measurement. A receiver logging at 1 Hz records one epoch every second.Full definition / GeoidA lumpy, imaginary "sea level" surface around the whole Earth. Elevations are measured from it.Full definition
- NAD 83(2011)The official US datum for horizontal position right now. Most state networks give coordinates in it.Full definition epoch 2010.00
Sign-up steps
No step-by-step guide is published. Start at the sign-up page.
- Sign-up page
- Go to sign-up →
- Who can sign up
- Anyone who signs the ARCORS user agreement
Fine print
- Terms / user agreement
- Signed user agreement required; ARDOT disclaims accuracy, availability and liability
- Last checked
- Oct 17, 2026
You email the signed agreement to [email protected]. The site timed out from our fetcher. The CasterThe internet server that hands out correction streams. Your rover logs in to it, like tuning into a radio station.Full definition comes from a dealer guide.
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.