When I had my hearing tested for enlistment at Argentia in 1971, the results showed a loss from my original enlistment hearing test. My hearing was checked every two years through 1975 at military bases and it keep decreasing. Upon release from Active Duty, the VA rated me at 0% for hearing and tinnitus, four years later they rated me at 10%. The VA supplied me new hearing aids last June. The base doctor at Argentia had suspect the cause of the loss was cause be the high noise level in the Equipment Rooms where I worked and sleep when on duty watch (both at Argentia & Eleuthera {in room next to the 400 MC Unit & Generators}).