Journal of the Society of Motion Picture Engineers (1930-1949)

in the film recording and reproducing room, to be used, as required, for the recording and playback of commentaries for newsreels. It may also be used for recording the sound portion of film recordings as a protection against possible loss of the optically recorded sound track during recording or processing. Photographic Equipment: A Houston processor for developing 16mm film is installed in the Toronto station to permit processing of our film recordings, newsreels, and other 16mm films. A second processor will be installed in Montreal if the load becomes sufficiently heavy to justify the additional unit. There is also an assortment of auxiliary photographic equipment to facilitate satisfactory editing, titling and cleaning of films. 16mm motion picture cameras are available for taking newsreels, drama fills, and other similar pictures. Still cameras, an enlarger and developing equipment are provided for the purpose of making slides and for various other uses around the studios. Mobile Unit: A mobile unit equipped with three camera chains, a microwave relay transmitter, and all necessary auxiliary equipment is used for televising sports, special events and other subjects outside the studios. Normally, the microwave transmitter for the mobile unit relays the signal back to a receiving point on top of the RadioCanada Building, but in the event that a line-of-sight path does not exist between the remote location and this receiving point, a second receiving point is available on the transmitting tower. Transmitter Building: The Montreal transmitter building (Fig. 5) is located on the top of Mount Royal on a site which has been leased to us by the City. The building is large enough to house two 5-kw transmitters with the associated 3-kw sound transmitters and in addition, the two 3-kw frequency modu lated VHF transmitters which are at present operating from the Keefer Building in Montreal. Some extra space has been set aside to permit future power increases of the television transmitters. The antenna tower is located adjacent to the transmitter building. At a height of 120 ft above the base there is a platform to support the microwave receiving equipment to be used, when required, with the mobile unit. Above this is a straight section of tower designed to take a 6-bay "super-gain" type antenna to be used in conjunction with a future second television transmitter on channel 6. Then follow two "pylon" type antennas for the two frequencymodulated transmitters and finally, at the top, the 3-bay turnstile antenna for the present television transmitter. Television Network: The CBC has entered into a contract with the Bell Telephone Company of Canada for a television network connecting Toronto and Montreal via Ottawa and, as well, for a link with the United States television networks via Buffalo, N.Y. A chain of microwave relay stations is under construction along the 374-mile route and, although it is not expected that the complete network will be ready for use before May 1953, the section between Buffalo and Toronto is now in operation. It appears probable that this network could be extended eastward as far as Quebec City and westward as for as Windsor, Ontario, before very long, but a coast-to-coast network across Canada seems to be in the somewhat more distant future. Plans are now underway for the construction of television stations in Vancouver, Winnipeg, Ottawa and Halifax. The Ottawa station will normally be fed via the network from the Montreal and Toronto production centers, but will have facilities for originating programs of special interest from the Capital City. The stations in Vancouver, Winnipeg and J. E. Hayes: CBC Television Facilities 403