As he describes in his EDN Tales From the Cube installment "Silence in the Sanctuary," Neubert describes his successfull efforts to locate (and mitigate) the offending party
The solution? A custom Faraday Cage, of course. Problem resolved.
When a buzzing microphone started interfering with services at his local church, Engineer Dick Neubert realized he wouldn’t be able to count on divine intervention to solve the problem.