Page 39: of Maritime Reporter Magazine (February 15, 1983)

Report Available On

Computer Data Transfer

Via Maritime Satellite

Computer data transfer be- tween ship and shore via satel- lite is completely practical and feasible, according to the results of a series of tests recently com- pleted by Navidyne Corporation,

Newport News, Va.

The most recent tests were conducted jointly by Navidyne and Marine Management Sys- tems, Inc., of Stamford, Conn., a leading firm in the develop- ment of computer-based manage- ment systems for marine appli- cations' Navidyne's ESZ-8000

Satellite Communicator, an IN-

MARSAT Standard A Ship Earth

Station (SES), was used to trans- mit data at 300 bps and at 1,200 bps via the INMARSAT Marces-A satellite over the Atlantic Ocean and the INMARSAT Coast Earth

Station at Southbury, Conn.

Equipment used in these tests included two Hewlett-Packard

I1P-85 computers, a Hewlett-

Packard HP82950 A 300-bps modem, a Racal-Vadic VA3451 1,200 bps modem and a Navidyne

ESZ-8000 Satellite Communica- tor. Data was exchanged between the two HP-85 computers, and also with the General Electric

Mark III Timesharing Network and with a DEC PDP-11 com- puter system at the New York headquarters of a major oil trans- portation company.

In other "on-the-air" tests,

Navidyne has also demonstrated the feasibility of transmitting data at speeds up to 9,600 bps using satellite voice channels.

During these tests, Navidyne's

ESZ-8000 was linked with a

Codex CS-9600 to transmit data via satellite to a computer in

Houston, using a four-wire pri- vate line for the shoreside con- nection.

Today, shipowners and offshore oil companies can consider a wide assortment of approaches to com- puter-based onboard management systems, using such applications as voice-channel data links, high- speed digital fascimile, electronic mail, automatic position report- ing and others.

For complete information and a report on these tests,

Write 76 on Reader Service Card $8.8-Million Overhaul

Contract For USS Kiska

Awarded Southwest Marine

Southwest Marine Pier 28, San

Francisco, Calif., has been award- ed an $8,850,000 firm-fixed-price contract for the overhaul (top- side only) of USS Kiska (AE-35).

The Supervisor of Shipbuilding

Conversion and Repair, San Fran- cisco, California, is the contract- ing activity (N62798-78-C-0002).

February 15, 1983

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