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Navigation /Communications Review — (continued from page 27) GRIFFITH MARINE (MARCONI) Circle 43 on Reader Service Card Griffith Marine Navigation, Inc. of New Rochelle, N.Y., is continu- ing its efforts to provide the mer- chant shipping companies with the finest electronics available. It supports these products through proper installation and round-the- clock service. One such new product is Mar- coni International Marine's NAV- TEX receiver. NAVTEX is a sys- tem to provide ships with printed navigation warnings via telex. Marconi has produced the NAV- TEX unit in order to provide ship- owners with the means of receiv- ing these warnings. Within the small unit is contained a fixed- tuned 518-KHz receiver, a micro- processor-controlled message de- coder, and a 40 character per line printer. The receiver can operate from a wire or whip antenna, from any 50-ohm antenna distribution unit, or from an active receiving antenna that can be supplied with the equipment. The NAVTEX receiver complies fully with the requirements of Vi Hose-McCann Telephone Co., Inc., originators and pioneers of Sound Powered telephones for marine use, has expanded their product line to include a wide variety of U.S. Navy Electrical and Mechanical products. An assortment of these products are shown here. All Hose-McCann Navy Products are manufactured, tested, and qualified in accordance with the latest Military specifications. i ! 1 I i I O Q Please call or write for further information and specifications on these or any other Navy Products. With CALL SIGNAL STATION IC/D Symbol No. 2988 J* SOUND-POWERED TELEPHONE HANDSET H203/U SOUND-POWERED TELEPHONE JACK BOX G15A/B/C s HEAD-CHEST SET STOWAGE BOX Symbol No. 2924.1 (1 to 6 Compartments) SOUND-POWERED HEAD-CHEST H200/U H202/U HANDSET HOLDER Z33A/B SOUND-POWERED TELEPHONE PLUG H39A SOUND-POWERED TELEPHONE JACK H27A HORNS & SIRENS IC/H1S4 (Other types available) & tttro ALARM BELLS & BUZZERS IC/B2S4 (Other types available) HOSE McCANN TELEPHONE CO., INC. 9 SMITH STREET ENGLEW00D NEW JERSEY 07631 PHONE 201-567-2030 CABLE ADDRESS: H0SETELC0 TELEX NO. 642837 ORIGINATORS AND PIONEERS OF SOUND POWERED TELEPHONES FOR MARINE USE s? b 0 \ 1 I I i O IMO, CCIR, and CEPT, and has the flexibility to allow for program changes to meet future develop- ments in the NAVTEX service. The U.S. Coast Guard began broadcasting NAVTEX warnings from its station in Sandwich, Mass., in October 1983. Ships within 200 to 300 nautical miles of this trans- mitter are able to receive these broadcasts. Griffith Marine also has avail- able the new Marconi 1,500-watt PEP SSB ship's main radio station that meets all IMO/CEPT/MPT re- quirements. This unit is presently only available for non-U.S.-flag installations. Griffith is continuing its efforts to provide all ships with the finest radars and ARPA systems avail- able. In this effort, it continues to supply Raytheon equipment to shipowners requiring radar and/or ARPA systems. To meet IMO spec- ifications, Griffith is now promot- ing the Raytheon/JRC model JLN doppler speed log to be integrated with both existing and proposed ARPA installations. Griffith Marine handles a full line of navigation and communi- cations equipment, and has a full staff of technical personnel that can service all types of nav/com systems, including steering sys- tems and ship's gyro system repairs. KRUPP ATLAS Circle 39 on Reader Service Card New, advanced navigational aids available from Krupp Atlas Elek- tronik GmbH of Bremen, West Germany, include the Atlas 7600- 8600 rasterscan series of big-ship radars that were shown in public for the first time at the recent Ex- poship North America Exhibition in New York City. Comprising realtive motion, true motion, and two automatic radar plotting aids models, the series represents a major advance over conventional radial-scan radars by being the first to offer continuous true daylight rasterscan display on a 16-inch screen. Each model conforms to or ex- ceeds IMO and U.S. Coast Guard specifications. Nine ranges are available for display, from 0.3 to 72 miles. Four pulse lengths and three pulse-repetition frequencies are switched automatically, with the possibility of manual over-ride on pulse lengths. All use a CRT with more than 700 lines to obtain necessary discrimination and res- olution. The 16-inch-diameter pic- ture has adjacent data areas where a range of navigational target and set operating data can be displayed. A new type of target history has been incorporated. Adjustable lengths of afterglow trails can be generated to give the navigator a direct impression of the overall traffic situation. Another feature of particular significance for coastal navigation is a centered true mo- tion display mode in which after- 32 Circle 313 on Reader Service Card Maritime Reporter/Engineering News
