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2 Trans -Atlantic
The new process drastically reduces the time required for sending newsfilm across the Atlantic. In today’s test, film of Queen Elizabeth was seen in the United States within less than two -and -a -ha If hours after it was taken in London. If the same film had been trans¬ ported by jet plane, it would have taken about eight hours before it could be put on the air in this country.
The new transmission process developed by BBC permits the sending of brief film sequences over a circuit of the trans-Atlantic telephone cable normally used for sound. These transmissions can be carried on the cable in either direction.
Under the new process, pictures from a film are sent over the cable electronically at slow speed and are re-assembled on another film on the other side of the Atlantic. The new film can then be transmitted to viewers by the television service in the receiving country.
The system is based on l6-mm film, which is widely used for television news coverage. The equipment, which can be used either for sending or receiving, transmits every second frame of film. At the receiving end, each of these frames is printed twice.
In transmission, each picture is scanned, line by line, by a slow-speed flying-spot film scanner. The view signal from the scanner is then used to modulate a carrier for transmission over the cable. At the receiving end, the signals are demodulated and used to operate
slow-speed film telerecording equipment.
Each frame of film requires eight seconds for transmission over the cable. This is about 75 times faster than previous methods of sending still pictures by facsimile transmission. To send one minute of film takes about 100 minutes of transmission time.
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NBC-New York, 6/18/59