Furuno USA Introduces New Doppler Speed Log And ARPA Line

—Free Literature Available Furuno USA, Inc., South San Francisco, Calif., has introduced a new ARPA series and a new compact doppler speed log, DS-70.

The DS-70 doppler speed log displays vessel speed and distance run to accuracies of ± 1 percent. The system uses paired-beam transducers to eliminate the effects of pitch and roll, and corrects signal velocity for changes in water temperature and salinity.

The new Furuno ARPA series, which are available either as standalone units that may be interfaced with existing Furuno or other radars, or as completely integrated Xor S-band radar/ARPA installations, consist of a 16-inch PPI radar display that shows raw radar echoes in amber and computed vector data in white, plus a control unit with a 9-inch daylight display for target data. The system provides for automatic acquisition of 20 targets and manual acquisition of an additional 10 targets within the range of 0.3 to 32 nm. Picture quality is achieved through the use of a logarithmic receiver and Furuno's custom hybrid microwave IC circuitry. The trial maneuver function permits instant evaluation of potentially dangerous CPA and TCPA situations.

The operator can change any simulation characteristics without interrupting normal target information update. Audible and visual alarms are activated if there is collision risk, a target is lost, a target transits the guard ring, in a target saturation condition, or if there is a system failure.

The DS-70 doppler speed log measures forward speeds throughout the range from 0 to 30 knots and speeds astern from 0 to 10 knots.

The distance run is displayed from 0 to 99,999.99 nm and may be reset by the operator to any value.

In addition to exceeding IMO, IEC and other standards, the DS-70 provides standard output signals to ARPAs, satnavs, onboard computers, and other ship's equipment. Remote displays are available and, with an optional signal distributor, a wide range of multiple signal outputs can be handled.

For complete information and free literature on Furuno's DS-70 doppler speed log, Circle 64 on Reader Service Card Or for further information on Furuno's new ARPA series, Circle 65 on Reader Service Card

Maritime Reporter Magazine, page 12,  Dec 1985 Florida

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