Radio navigation systems depend upon effective receipt of signals, for a satellite-based system this means an unobstructed view of the satellites. However, when operating close to large structures, satellites can easily be obscured leading to reduced performance at critical times.
The ability to use a wide range of satellites gives more choice and therefore higher probability of a good position solution.
A choice of services are available ranging from the SeastarTM Standard L1 sub meter level, GPS only, single frequency service to one of Fugro’s innovative SeastarTM G4 service.
SeastarTM DGNSS services are delivered over dual independent delivery paths. Reception is via a small dedicated omni-directional antenna or an existing, compatible Inmarsat system. This connection has no impact on use for normal two-way communications and does not affect equipment approvals.
To complement the standard satellite broadcast delivery channels, we offer our customers an alternative delivery of correction data using the NTRIP protocol as a backup. (Networked Transport of RTCM over Internet Protocol).