Is Your Facility RF Risk-Friendly? One in a series of occasional
articles to help AM radio engineers and owners enhance their
operations. Many broadcast engineering professionals are
responsible for facility management and maintenance. If that is
your role, it is important to realize that the RF environment
for which you are answerable includes more than your primary
transmissions. The overall electromagnetic energy environment of
your facility should be monitored as thoroughly as air and water
quality. Electromagnetic energy is generated over a wide
spectrum of frequencies from many different sources. They
include extremely low frequency (ELF), radio frequency (RF) and
microwave (MW) radiation, generically referred to as “EMF.” ELF
fields are produced by power lines, electrical wiring and
electrical equipment. RF and MW radiation is emitted by your
broadcast transmitters, cellular phones, WiFi, microwave ovens,
heat sealers, high-frequency welders, induction heaters, flow
solder machines, communications tran