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THE TRANSMISSION GALLERY
Photos by Nick Rice and Rupert Fennymore
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Dorking was built using both horizontal and vertical polarisation to provide coverage to the required areas.
All antennas are fed from a single set of transmitters, the power being split 4 to 1 in favour of the HP antenna.
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High above Dorking is this little site, which is inside a reservoir compound owned by Thames Water.
The site was largely inaccessible so we had to settle for shots taken from outside the fence. The TV radiators can be seen just below the cellular panels at the top of the mast. Interestingly, there is a line antenna which runs off the left hand side of the tower - but no idea what this is for! Medlock Communications have a presence at this site coordinating co-habitation of both the broadcast functions of the tower and the mobile phone needs of the local community. |
Presumably the log-periodic receiving aerial is picking up Reigate?
The Dorking relay's main signal is broadcast with horizontal polarisation but a vertically polarised signal is transmitted to the South. The vertically polarised antennas used for this are tucked behind the mast in this picture - as shown below:
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