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ABSTRACT THE Postmaster-General announces that the Television Advisory Committee has recommended the adoption of the Alexandra Palace for the London Television Station. This recommendation


has been approved by the Postmaster-General; and the British Broadcasting Corporation has made arrangements with the Alexandra Palace trustees for the use of a portion of the buildings for


the station. The ground at the Alexandra Palace is 306 ft. above sea-level; and it is proposed to erect a 300 ft. mast on the site, thus providing an aerial height of 606 ft. above sea-level


which, it is considered, should enable a high definition television service to be provided for the London area. The Baird Television Company and the Marconi-E.M.I. Television Company are


being invited to tender for the supply of the necessary apparatus for the operation of their respective systems at the station. The Baird Company proposes the adoption of a standard of


picture definition of 240 lines sequential scanning, 25 picture traversals a second, 25 complete frames a second; and the Marconi-E.M.I. Company propose a standard of 405 lines, 25 pictures


a second, interlaced to give 50 frames a second, each of 202£ lines. The Committee proposes that the vision signals shall be radiated on a wave-length of about 6-6 metres and the associated


sound signals on a wave-length of about 7·2 metres. Access through your institution Buy or subscribe This is a preview of subscription content, access via your institution ACCESS OPTIONS


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_Nature_ 135, 987 (1935). https://doi.org/10.1038/135987b0 Download citation * Published: 01 July 1935 * Issue Date: 15 June 1935 * DOI: https://doi.org/10.1038/135987b0 SHARE THIS ARTICLE


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