LT-1000 User & Installation Manual
Introduction
Lars Thrane A/S
www.thrane.eu
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Introduction
Congratulations on your purchase of the LT-1000 Navigational Reference Unit (NRU)!
The LT-1000 Navigation Reference Unit (NRU) is a maritime navigation product from Lars Thrane A/S. The LT-
1000 NRU is designed for the leisure as well as the professional maritime markets. The LT-1000 unit meets
all standards and certification requirements needed for worldwide maritime navigation equipment.
Performance
The LT-1000 NRU is a small, compact, and very advanced unit with 12 precision sensors (magnetometers,
gyros, accelerometers, barometer, thermometer, and GNSS). With the use of sensor-fusion and Kalman
filtering, the LT-1000 NRU outputs: true heading, magnetic heading, roll, pitch, position, satellite
information, ground speed, course over ground, air pressure, and temperature in real-time, with high
precision and resolution. The LT-1000 NRU includes advanced technologies such as:
·
Kalman filtering
·
Calculation of magnetic variation based on the World Magnetic Model (WMM)
·
Compensation of soft and hard iron (deviation)
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Built-in magnetometer calibration algorithm
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Receive and track multiple satellite systems (GPS, GPS & GLONASS, or GPS & BeiDou)
·
Support for Satellite-Based Augmentation System (SBAS): EGNOS, WAAS and MSAS
The LT-1000 NRU makes use of the latest technology within GNSS receivers, with market leading acquisition
and tracking performance.
The LT-1000 NRU is designed and built for the demanding and rough environment at sea and with an
operational ambient temperature range from -40⁰C to +55⁰C (-40⁰F to +131⁰F).
Installation & Navigation
The LT-1000 Navigation Reference Unit is easy to mount on a 1” pole (optional installation: roof mount) with
a single cable supporting NMEA 0183, NMEA 2000, and power. The built-in magnetometer calibration
algorithm will quickly compensate for heading deviation, and the LT-1000 NRU will output reliable navigation
data. An external LT-Service Tool is available for optional configuration and maintenance of the LT-1000
NRU.
More than 40 years of experience have been put into the design and construction of the advanced LT-1000
NRU, with an exceptional performance and specification level.
Summary of Contents for LT-1000 NRU
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