The instruments were in operation 24/7/365 between 1955 and 1992 and tested daily by wholetime ROC officers and regularly reacted to the EMP from lightning strikes during thunderstorms.
AWDREY regularly reacted to the EMP from lightning strikes during thunderstorms. The instruments were in operation 24/7/365 between 1955 and 1992 and tested daily by wholetime ROC officers.
The instruments were in operation 24/7/365 between 1955 and 1992 and tested daily by wholetime ROC officers. AWDREY regularly reacted to the EMP from lightning strikes during thunderstorms.
The instruments were in operation 24/7/365 between 1955 and 1992 and tested daily by wholetime ROC officers. AWDREY regularly reacted to the EMP from lightning strikes during thunderstorms.