Monitoring the complete correction chain
A healthy GNSS NTRIP Caster must do more than accept connections. A source can remain connected while sending no data, and a rover can receive bytes while remaining Float. Monitoring therefore combines network state with GNSS-specific indicators.
Useful signals include last RTCM packet age, normal throughput, station coordinates from RTCM 1005/1006, rover GGA position, RTK mode, mountpoint, connection events and outage duration.
Reference-station monitoring
Check that each expected station is connected to the correct mountpoint, sends data at its normal cadence and reports coordinates consistent with the station record. A sudden change in throughput or a silent source should generate an actionable event rather than a falsely healthy state.
Rover and RTK session monitoring
Rover GGA feedback provides operational position information and a quality field that can be mapped to Fix, Float or Single. These labels are useful for diagnosis but do not replace survey-quality checks of the reference frame, antenna setup, multipath and field procedure.
The GNSS Control Center combines these signals into a live operational view.