Caspinav
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How it works

From satellite to rover: the path of a correction.

RTK centimetre accuracy relies on cancelling GNSS errors between a base station and a rover. Caspinav is the central hub of that flow.

Live scene

From satellite to rover, in three dimensions.

Satellites circle in orbit, signals come down to the base in Baku, and corrections reach the rover through the Caspinav Caster. Drag the globe to spin it any way you like.

Loading 3D scene…
● GNSS satellite ● Base (BAKU_01) ● Correction path (Caspinav Caster) ● Rover
GNSS satellites Base station RTCM3 broadcast Caspinav caster auth · AUTO mountpoint · multi-tenant Rover RTK fix · centimetre Position / survey map · PPK · export ↑ aux NMEA side channel: RMC + GST (speed, sigma)
  1. 01 · Base

    The base station broadcasts RTCM3

    A receiver on a fixed coordinate measures GNSS errors and sends an RTCM3 correction stream to the caster. The base is protected by a source password and IP allowlist.

  2. 02 · Caster

    Caspinav receives and distributes the stream

    The caster keeps the mountpoint tenant-scoped, checks authentication and, via the AUTO mountpoint, routes each rover to the nearest permitted base.

  3. 03 · Rover

    The rover receives corrections and fixes

    The NTRIP client (rover) connects with Basic/Bearer auth, receives the correction and reaches a centimetre-level RTK fix. Sigma values are on the aux NMEA channel.

  4. 04 · Output

    Position, survey and post-processing

    Positions appear live on the admin map. Logs are post-processed with PPK; results export to KML, GPX and GeoJSON.

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