During the Cold War period CFS Carp needed a location for the transmitter that it's signals would come out from. A location near Richardson On.(just outside Perth On.) was chosen so if the signals were ever triangulated, the actual location of the Diefenbunker would not receive a direct hit. This two storey under ground bunker housed the transmitter equipment and facilities to house 20 servicemen through a nuclear strike and hopefully continue to transmit signals to the 6 other Diefenbunkers across Canada and other facilities. The receiver sites were located in Almonte and Dunrobin but there were no bunkers at these two locations, see my other locations for one of those sites and the location CFS Carp for more info on the Diefenbunker.