Any RTK base that can send corrections over NTRIP works. Already have one? It takes a few minutes. Building
your own from a GNSS module? Our base software does the rest.
An off-the-shelf base (any brand)
Create an account — Get Started on the home page.
Add a mountpoint — Setup → Base Stations (Mountpoints) → + Add
Mountpoint: a name (e.g. SITE_NORTH) and a source username and password for your base.
Leave it public (shared) and it earns you tokens and coins.
Point the base at the caster — in its NTRIP server / caster output:
Host
ntrip.rtkonline.net
Port
2101
Mountpoint
the name from step 2
Username / password
the source username and password from step 2 (NTRIP 1 bases: the password only)
Choose the messages — RTCM 3 MSM4 or MSM7 observations (GPS, Galileo, BeiDou;
GLONASS optional) every second, the base position (1005 or 1006), the antenna (1033) and ephemeris.
Give it a position — fixed coordinates or the receiver's survey-in. The network
surveys its exact position within about a day either way.
Check it — it appears online under Mountpoints and on the map. Once the
network has surveyed it, a shared base earns 1 token a day.
Our base software (do it yourself)
Turn a GNSS module into a base, set up entirely from its own web page.
Hardware — a Linux board (Raspberry Pi, OrangePi or similar; amd64, arm64 or armhf)
or an ESP32, with a Unicore UM980 / UM982, Quectel LC29H (BS), Unicore UM626N or u-blox ZED-F9P
(experimental), on USB or serial.
Install — sign in and open Device firmware: the .deb package for Linux or
the firmware for the ESP32, with step-by-step instructions.
Set up the module — on the device's web page: Auto-detect, then
Initial Setup — it sends the complete base configuration.
Base position — enter fixed coordinates (a height from a survey sheet is converted
with the geoid) or let it survey in.
Stream to the caster — choose rtkonline.net and enter your mountpoint and source
username and password (step 2 above). Needs a Limited or Full license.
All features of the base software
Auto-detect, Initial Setup, role switch and one-click factory reset.
Fixed coordinates or survey-in; the position goes out as RTCM 1005.
MSM7, MSM5 or MSM4 with ephemeris; live indicators show which RTCM messages arrive from the module.
Push to the rtkonline.net caster over NTRIP Limited/Full
Push to any NTRIP caster, or a plain TCP target Full
Serial / UART RTCM output to a radio or another device Full
RTCM and NMEA TCP listeners for local software Full
A local NTRIP caster on the device — rovers on your network connect directly Full
NTP time server from GNSS time Full
MQTT publishing of position, status and sensor data; INA219 power sensor for solar or battery sites.
Network and WiFi setup from the web page; BLE WiFi provisioning on the ESP32; updates from the web page.
Live sky plot, satellites per constellation, signal levels and message statistics.
Try it in the demo
The demo units run this software around the clock with a simulated GNSS module. Log in, look around, change
things — the setup is restored automatically.