Geograph - photograph every grid square

Lamphey ROC Post Hatch

In 1955 the government announced that steps were being taken for the ROC to give warning and to measure the effect of a nuclear attack in event of a future war with the Soviets - this new duty was only secondary to the identification of incoming aircraft. The ROC was chosen as they already possessed the infrastructure and personnel who were familiar with the monitoring equipment. The posts where grouped in clusters of 3-4 with a main master post in each cluster. The master post had a VHF radio as well as the Tele-talk which ensured that communication was possible from all posts to the group HQ's. The regional headquarters were where plotters would predict the areas that were to be affected by nuclear fallout; allowing the authorities to decide which services could remain in operation. To give protection from the possible fall-out of a nuclear attack these monitoring rooms were constructed 15ft underground, usually at the location of a pre-existing Orlit post. The underground room measured 15ft by 7ft and manned by 2-3 staff on a two week rotation. As of 1992 all of the remaining ROC posts were decommissioned and returned to the public sector, many being brought up by telephone companies due to their elevated positions.