UK Broadcast Transmission
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BBC VHF 405 line TRANSMITTERS

CRYSTAL PALACE
Channel 1V ERP: 200kW
Vision carrier: 45.00 MHz Sound Carrier: 41.50 MHz

The field strength contours on this map represent expected average values with the E.R.P. indicated; variations of as much as 3:1 in field strength may occur at individual points. The 0.1mV/m contour should not be interpreted as a rigid boundary of the area served, since the quality of reception obtainable would have depended on local conditions. Fading and interference may at times have been experienced in the outer areas served and also, in difficult locations, nearer the transmitter.
BBC Engineering information sheet 2906 (1) July 1959

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