Simrad HS52 Instruction Manual page 10

Simrad HS52 GPS compass and DGPS navigator
2
The Processing unit contains the main board with CPU, flash,
power, I/O and a terminal list.
Precision heading is derived from the fixed-distance dual GPS
antenna arrangement in the Sensor unit, using carrier phase data
to generate heading information independent of latitude and
vessel dynamics. GPS position and speed are calculated from
both antennas, which give redundant position and velocity
sources in this product. Input of DGPS corrections or reception
of SBAS (WAAS/EGNOS) signals may improve position
accuracy.
The inertial rate element provides yaw/ROT information. In case
of short GPS outages, the inertial sensor automatically takes
over as the prime source for heading determination until the
GPS comes back on line. Working together seamlessly, the
inertial and GPS elements of the system insure accurate,
continuous and robust heading information.
The Processing unit includes configurable output serial lines and
Ethernet connections making it easy to distribute HS52 data to
multiple users on board the vessel.
The HS52 requires no scheduled maintenance or re-calibration.
The system offers flexible configuration of the output variables
and interface setup, depending on the vessel and application. It
is easy to operate, install and align.
The HS52 system has the following features:
• True heading anywhere on earth
• 0.5º heading accuracy
• Heading accuracy unaffected by the latitude
• Heading available in periods of GPS drop-outs
• Compliant to WAAS, EGNOS and MSAS Satellite Based
Augmentation Systems
• Capable of DGPS multi-reference station processing
• Combines several instruments with one robust, integrated
product
• Only two-pair cable (no coax) between the mast unit and the
Processing unit on the bridge.
• 20 Hz update rate on heading, rate of turn and position
measurements
• Three RS-422 output serial lines to equipment requiring data
from a IMO approved product
• Three RS-232 configurable output serial lines for non IMO
critical purposes
• Output data on Ethernet
• 1PPS output for synchronization of other survey equipment
20222360 / E