It’s been how long since an above surface nuclear bomb was tested? Those sites would be ideal places to research the effects of associated EMP. But the environmentalists would be way too agog now.
Non-nuclear electromagnetic pulse (NNEMP) is an electromagnetic pulse generated without use of nuclear weapons. There are a number of devices that can achieve this objective.NNEMP generators also include large structures built to generate EMP for testing of electronics to determine how well it survives EMP