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Helnl Radio News Service
7/10/46
"» Television has certainly made a come-back1, commented a pre-war viewer afterwards. Those with memories of the pre-war service understood all that he meant. This was the fulfilment of more than one promise. ”
One British estimate was “that there were 23,000 televi¬ sion viewers within a radius of 40 miles of London who saw the parade. M Evidently this referred to the number of people about the various sets rather than the number of sets. However, C. 0.
Stanley, Chairman of the British Radio Industry Council Television Committee was quoted as saying last week that he expects 100,000 television receivers, producing black and white images, to be operating in London homes by the end of this year.
The BBC Television Mobile Unit four vehicles and about thirty operators are used in broadcasts outside the studio. In one vehicle, known as the “scanner-van ”, was the apparatus that handled the vision signals from the three Emitron cameras and the sound from the commentators * and “orowd” microphones. In the seoond van was a stand-by vision transmitter, there to provide a radio link with Alexandra Palace should the cable link fail. The third carried the eighty-foot fire-escape by means of which the aerial necessary for the radio link may be elevated; a portable generator the power-source in the absence of a main’s supply was in the fourth vehicle.
On Victory Day, however, the programs went to Alexandra Palace by way of the co-axial cable a very special kind of cable that is better described by an engineer, Douglas Pirkinshaw, Sup¬ erintendent Engineer of Television, has explained it as follows:
“Broadcasting House and Alexandra Palace are connected by a permanent circuit consisting of a special cable designed for tele¬ vision signals, together with terminal amplifying and equalizing equipment at both ends. This special cable is further continued around selected areas in central London, near which important broad¬ casts might be made, and the scanner-van can be finally connected with this cable by means of ordinary telephone circuits provided the length of these is not more than two or three miles, since vision signals cannot be satisfactorily sent along telephone lines over the same distances as trunk telephone calls or sound broadcast signals. “
Had it been necessary to use the mobile transmitter for the Victory Parade, its radiated signals would have been picked up at a permanently established receiving station in Highgate, North London, where to quote Birkinshaw again “a special television receiver reproduces the original vision signals and passes them to Alexandra Palace via the Broadcasting HouseAlexandra Palace cable, which passes through Highgate. "
Reporting the televising of the Victory Day event the London Sunday newspaper The People (which has the amazing circula¬ tion of 3,000,000, while still another Sunday paper News of the World has a circulation in excess of 4,000,000), said:
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