User manual

SeaSTAR 3100LRS USER MANUAL
Issue 1.0 08/02
1
Introduction
About This Manual
This manual has been produced to assist the typical user with the installation
and operation of the 3100LRS DGPS Receiver.
System Features
The 3100LRS DGPS Receiver is a component part of the Fugro world-wide
DGPS Service. The Fugro service is a full-time differential GPS (DGPS)
broadcast system delivering corrections from an array of GPS reference
stations located around the globe. Reference stations provide industry
standard formatted corrections to Network Control Centres (NCC’s) at strategic
geographic locations, where the corrections are decoded, checked, and
repackaged in a highly efficient format for broadcast. The data is modulated
onto a RF carrier that is then up-converted for transmission to an L-band
communications satellite.
The signals are received at the user's location by an antenna, demodulated by
a receiver, and are made available, after selection of the desired individual
reference site's data set, as corrections for use in a GPS, differential-capable,
receiver.
The 3000 series of receivers support the following Fugro SeaSTAR® services:
1. Virtual Reference Cell, where the data from multiple reference stations is
used in processor software to produce enhanced corrections for an
optimised reference Cell. The resulting corrections are restructured as
RTCM SC-104 version 2 corrections for direct application to a user's
receiver or an internal Receiver.
2. Virtual Base Station where the data from multiple reference stations is
used in processor software to produce enhanced corrections for the user's
location. The resulting corrections are restructured as RTCM SC-104
version 2 corrections for direct application to a user's receiver.
3. DGPS Services Stand alone differential GPS, where corrections from one
selected site are extracted from the incoming data stream and are
reformatted to an industry standard Format, RTCM SC-104.
4. Hi Performance Services, where ….
FSPAS Ref.: B31005102PMBRA0