Simrad SIMRAD HS50 manual 20221081 / F

Simrad HS50 Heading Sensor

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

2 20221081 / F