📄️ Connecting a Receiver
Connect an external GNSS receiver to Mapit GIS via Bluetooth, TCP/IP, or a third-party companion app.
📄️ NMEA Protocol
How Mapit GIS parses NMEA 0183 sentences from external GNSS receivers - supported sentence types, data extraction, and checksum validation.
📄️ GPS Info and Satellites
View real-time position data, accuracy metrics, DOP values, and satellite status in the GPS Info sheet.
📄️ RTK and Fix Types
Understanding GNSS fix quality levels in Mapit GIS - from standalone GPS to RTK Fixed - and how accuracy is computed.
📄️ Height and Geoid Models
Understand ellipsoidal vs. orthometric heights, configure geoid models, and apply antenna height offsets in Mapit GIS.
📄️ Mapit NTRIP Client
Built-in NTRIP client for receiving RTK corrections directly in Mapit GIS - connect to any NTRIP caster, forward RTCM to your GNSS receiver, and achieve centimetre-level accuracy without third-party apps.
📄️ Position Averaging
Improve point accuracy by averaging multiple GNSS readings at a single location.
📄️ GNSS Settings Reference
Complete reference of all GNSS and GPS-related settings in Mapit GIS - connection options, survey accuracy, geoid models, and tracking.