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The London Twin-Wave Broadcasting Station
Brookmans Park

Wavelengths and Programmes

General view of the station from the south
General view of the station from the south
The two wavelengths used are 356 metres and 261 metres, and each transmitter is intended to work with a power of thirty kilowatts in the aerial.

The former wavelength radiates the Regional Programme, which will be designed to be of particular interest to the London Region. The National Programme, which will be of general interest throughout the country, is transmitted on 261 metres.

Since this wavelength is considerably lower than 356 metres, the range will be somewhat less. In order to equalize the strength received from the two transmitters over as wide an area as possible, arrangements have been made to enable greater power to be radiated by the lower wavelength: that is to say, the one on which the National Programme will be sent out.

The transmitter used for this service delivers approximately 45 kilowatts to the aerial, but even so it cannot cover so great a service area as the transmitter working on 356 metres. However, since the Daventry transmitter 5XX, using 1556 metres, will always transmit the National Programme, listeners who cannot receive this programme satisfactorily on the Brookmans Park wavelength of 261 metres, can always make use of the long-wave Daventry transmitter.

Next: The Principal Contractors

Foreword and Index
The Aerial System
The Power House
The Battery Room
The Motor Generator Room
The Transmitter Hall
The Control Room and Studio
Wavelengths and Programmes
The Principal Contractors

Related Information:
A History of Brookmans Park Transmitting Station by Lilian Caras 1982 (revised January 2002)
Note: The source of this booklet is the BBC, who have given permission for it to be reproduced on this website. No further copying is allowed and no other reuse without the BBC's permission.
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