Page 36: of Maritime Reporter Magazine (May 15, 1984)

Navigation/Communication

Review (continued from page 35)

NAVIDYNE

Circle 45 on Reader Service Card

Navidyne Corporation of New- port News, Va., recently intro- duced its ESZ-10000 Satellite

Communicator, said to be the first satcom terminal to use a "phased array" antenna system in place: of the traditional parabolic dish. The result is a small, lightweight an- tenna unit that meets all INMAR-

SAT requirements with no sacri- fice in performance margins.

The ESZ-10000 retains all of the popular operating features of its predecessor, the ESZ-8000, pack- aged in a much smaller and more reliable unit. The below-decks equipment incorporates the latest advances in solid-state circuitry for maximum reliability and ease of field service. Like the ESZ-8000, the new unit has a fully inte- grated, CRT-based operator's con- sole that simplifies operating pro- cedures through menu-driven displays, leading the user step by step through all operating pro- cedures.

The CRT also serves as a word processor for composing and edit- ing telex messages. Options avail- able with the ESZ-10000 include remote indicators, multiple pri- vate telephones, automatic posi- tion reporting, voice-channel data modems, expanded memory, and a high-speed data modem (56 kbps).

NEWMAR

Circle 63 on Reader Service Card

NEWMAR of Newport Beach,

Calif., introduces the NAV-222, a new automatic digital direction finder for easy and precise navi- gation. The compact unit utilizes a microprocessor in place of motors or moving parts and enables sig- nals to be locked in from either the beacon or broadcast band by a lightweight delta loop antenna mounted permanently on the cabin top or mast.

Two digital LCD displays indi- cate station frequency to the near- est KHz and relative bearing of the station to the nearest degree.

The circular LED display indicates the actual bearing in azimuth to the station. A rotating azimuth bezel allows relative bearings to be converted to true bearings for simple navigation or homing.

The speaker can be remotely lo- cated for maximum audibility, while the processor unit can be ta- bletop-, bulkhead-, or overhead- mounted.

NORCONTROL

Circle 46 on Reader Service Card

Norcontrol's Databridge 7 is a third-generation, automatic radar plotting aid (ARPA) that acquires and tracks up to 50 radar targets and continuously displays colli- sion-avoidance data on the most threatening 20. It will sound a col- lision warning alarm whenever any of these target tracks exceed user-specified values for closest point of approach and time to clos- est point of approach. As a colli- sion-avoidance system, it meets or exceeds IMO recommendations and

U.S. Coast Guard and Maritime

Administration standards.

The Databridge 7 is the latest of a long line of ARPAs stretching back to 1969, when a Norcontrol unit was the first collision-avoid- ance system ever installed on board a merchant vessel. It is manufac- tured by Norcontrol of Horten,

Norway, a division of Kongsberg

Vaapenfabrikk A/S. In the U.S. and Canada, it is marketed by

Kongsberg North America Inc. of

Hauppauge, N.Y.

The DB-7 acquires targets throughout the operator-desig- nated search area—not just when a target penetrates a guard ring.

The system displays anti-collision data in the form of vectors super- imposed over a daylight-viewable, 16-inch radar presentation. Oper- ator selection of true or relative vectors and vector length provides the utmost in system flexibility.

Full trial maneuver facilities, in- cluding operator selection of time- to-maneuver, quickly and clearly show the results of maneuver al- ternatives. The DB-7 warns the operator when the proposed ma- neuver does not satisfy his CPA and TCPA criteria, or when it will bring him into conflict with a pre- viously non-threatening target.

Databridge-7 is much more than a simple ARPA. Channels and

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UNDERWATER PROPELLER

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Full range of 24-hour professional diving services • Underwater Inspection • Underwater Repairs and Maintenance

CALL FOR QUOTES

PACIFIC MARINE

SERVICES

Berth 10, Pier A

Long Beach, California 90802 (213) 436-5017 Telex: 664540

Circle 281 on Reader Service Card

OIL-FREE AIR!

For Shipboard Service »pur-pax

AIR COMPRESSORS * with unique Dyna-Balance®

UP TO 104 CFM-125 PSIG v air cooled i/ completely balanced* i/ no special foundation needed* /100% oil-free air i/ designed for heavy duty service

Manufactured by: :;:Dyna-Balance" models feature the Braun Linear drive design

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TWX: 910.686-0657

Circle 187 on Reader Service Card

Indikon

CRANKSHAFT

WEB

DEFLECTION

INDICATOR

SYSTEM

Easier, Faster

More Accurate • Measures crankshaft web openings between 3.75 and 24.50 inches. Metric version 95.25 to 622.25 mm. • Displays web deflection over a 40 mil range with 0.01 mil resolution. Metric version range 400 microns with 1 micron resolution. • Live centers mount in ordinary punch marks on webs to eliminate seating ambiguity. • Displays crankshaft angle over a 300' range with 1° resolution. • Battery saver provides six months operation

Indikon Corporation

Dept A 26 New Street Cambridge Ma 02138 US, A (617)547-3604 Telex 92-1464

C IB

MARINE SALES

REPRESENTING ^Sj&gnt QoknAon ftjubbsJi fa.

Rubber Sleeve or Flange Bearings

Stuffing Boxes and Keel Coolers

Heavy Duty Fendering

WESTERN BRANCH METALS

Armco Stainless Shafting Systems

Machining — Propeller Nuts

DAMAN INDUSTRIES

Ceramaloy Propeller Shaft Liners

KAHLENBERG BROS.

Air Horns — S/S Propellers

NATIONAL FLUID SEPARATORS, INC.

Bilgemaster Automatic Oily/Water

Separator Systems

SCHRADER BELLOWS

Pneumatic Propulsion Control Systems

TWIFLEX CORPORATION

Marine Disc Brakes

Propeller Shaft Brakes & Controllers

P.O. Box 33, Glenhead, N.Y. 11545 516-676-3738 36 Circle 186 on Reader Service Card Circle 247 on Reader Service Card Maritime Reporter/Engineering News