But even with this reduced power, jamming of Bra _ ov occurred, so in 1972 the radio facility Donebach was rebuilt as a directional aerial with a minimum towards Bra _ ov . Therefore two radio masts were taken down and the remaining two were rebuilt as umbrella aerials.
22.
Both the 648 and 1296 directional aerials had limited radiation to the west, meaning that, despite the high power of the transmitters, reception of Orfordness within the UK was poor or non-existent, with the notable exception of parts of south-east England ( including London ) and East Anglia.
