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Simrad HS50 Heading Sensor
2 20221081 / F
High-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. DGPS signals may be input to the HS50
to improve position and velocity accuracy, but has no impact on
the heading accuracy. Refer Performance data, page 6.
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
(three RS-232 and three RS-422) and Ethernet connections
making it easy to distribute HS50 data to multiple users on
board the vessel.
The HS50 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 HS50 system has the following features:
• True heading anywhere on earth
• Replaces several instruments with one robust, integrated
product
• Heading available in periods of GPS drop-outs
• 20 Hz update rate on heading and rate of turn measurements
• 80°/sec follow-up rate
• Three RS-232 and three RS-422 configurable output serial
lines
• Output data on Ethernet
• Only one cable (no coax) between the mast unit and the
Processing unit on the bridge