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Excess RF Exposure Warning
In the United States, the Federal Communications Commission has established guidelines for human exposure to
Radio Frequency (RF) electromagnetic fields. The commission’s requirements are detailed in parts 1 & 2 of the
FCC’s rules and regulations {47 CFR, 1.1307(b), 1.1310, 22.1091, 2.1093}. It is the responsibility of the
owner/operator of this device to follow all applicable warnings and precautions regarding human exposure to RF
fields.
The FCC Office of Engineering Technology (OET) Bulletin 65, Supplement B, Evaluating Compliance with FCC
Guidelines for Human Exposure to Radio frequency Electromagnetic Fields directly concerns the use and operations
of all Alpha Antenna systems. This bulletin establishes safe operating distances from antennas associated power
levels in order to permit the operator and persons who may be impacted by operation to exist in a safe
environment. Guidelines for Maximum Permissible Exposure, or MPE, are defined in Supplement B of the bulletin.
IMPORTANT NOTE:
Refer to the above mentioned Supplement B along with FCC OET Bulletin 65, Version 97-01. The information in the
supplement provides additional details that are used for evaluating compliance of amateur radio stations with FCC
guidelines for exposure to radio frequency electromagnetic fields. Supplement B users should, however, also
consult Bulletin 65 for complete information on FCC policies, guidelines, and compliance related issues. Definitions
of terms used in this document appear in Bulletin 65. Bulletin 65 can be viewed and downloaded from the FCC’s
Office of Engineering and Technology’s web site at: http://www.fcc.gov/oet/rfsafety
