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RMIOM/UttK CORPORATIM Of UUmU VISITORS AT THE NATIONAL MARINE EXPOSITION INSPECT RADIOMARINE'S LATEST EQUIPMENT IN- CLUDING RADAR (ABOVE), DIRECTION FINDER (IN CIRCLE). NEW MARINE RADIO DEVICES ^== Radiomanne Exhibfts Compact Electronic Navigation Aids and "Packaged" Radio Stations at National Marine Exposition COMPACT and simplified radio and electronic devices devel- oped by the Radiomarine Corpora- tion of America for greater safety at sea and on the inland waterways of this country were given their first public showing on May 20, at the National Marine Exposition in Grand Central Palace, New York. One of the main features of the exhibit was a shipboard radar set designed by Radiomarine for com- mercial maritime operations. Small and easy to operate, it can be used for anti-collision and navigation purposes on all types of merchant vessels. With this Radiomarine radar, the navigator is able to direct his ship into port with safety even though normal visibility is blotted out by fog or darkness. This electronic "eye" instantly informs the navigator of the dis- tance and bearing of such objects as channel markers, lighthouses, bridges, other ships or land forma- tions. It has high resolution, a transmitter of ample power, and a highly sensitive receiver, as well as other improvements essential to a modern navigational instrument. Other features of the Radioma- rine exhibit that attracted atten- tion included complete "packaged" merchant ship radio station, loran (long-range) navigational equip- ment, radiotelephone units for in- land waterways, lifeboat radio- telephone and radiotelegraph units and a radio direction finder with a greatly simplified antenna. The "all-in-one" ship radio sta- tion, it was explained, combines in one package all the marine radio communication requirements of the United States Maritime Commis- sion, the rules and regulations of the Federal Communications Com- mission, the Cairo International Telecommunications Conference, and the Havana Inter-American Radio Conference. Nevertheless, this compact console requires less deck, bulkhead and overhead space, less wiring inside and outside the radio shack, and costs less to install and maintain than conventional models. Radiomarine's radiotelephone for use on inland waterways is fully automatic and operates on six chan- nels. It features a simplified remote control unit which makes it possible to have an extension some distance from the main cabinet. The loran equipment exhibited by Radiomarine is of the type cur- rently being demonstrated success- fully aboard vessels in the Atlantic and the Pacific. Its use at sea is described elsewhere in this issue of Radio Age. RADIOMARINE'S AUTOMATIC RADIOTELE- PHONE INSTALLATION WINDOW DISPLAYS IN PROMINENT NEW YORK STORES DRAW ATTENTION TO RA- DIOMARINE EXHIBIT AT MARINE SHOW. [30 RADIO AGE]