ABSTRACT
This chapter focuses on the requirements of broadcasters, including new and revised standards in force, proposed regulatory actions, and updated methods for measuring radio frequency energy. In 1985, the Federal Communications Commission (FCC) adopted American National Standards Institute Standard C95.1-1982, one of the first standards that exhibited frequency dependence, to be used for evaluating human exposure to radiofrequency (RF) energy. In 1996, the FCC adopted the recommended power density limits specified in a 1986 report published by the congressionally chartered National Council on Radiation Protection and Measurements. In addition to exposure guidelines, Occupational Safety and Health Administration applies a "lockout/tagout" requirement in many situations involving maintenance and servicing of high-power RF transmitting equipment. Controlled environments are those where persons within exposed under known conditions are "fully aware" of and can "exercise control" over their exposure to RF energy. Contact currents flow when the human body comes into contact with a metallic object at a different electric potential.
