EMP generators are generally considered illegal in the U.S., including Florida, due to strict regulations on electromagnetic interference and potential legal liabilities for any resulting damages. Building such devices is complex and requires specific voltage and frequency considerations, which vary significantly based on the intended use. There are safety concerns, particularly with designs involving explosives, making them dangerous to construct and operate. For educational projects, it is crucial to consult FCC and NTIA guidelines to ensure compliance with regulations. Overall, while experimentation may seem appealing, the legal and safety risks are substantial.