User's Manual

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such as type and location of antennas, as well as site accessibility of occupational personnel (controlled environĆ
ment) and the general public (uncontrolled environment). This equipment should only be installed and maintained
by trained technicians. Licensees of the FCC using this equipment are responsible for insuring that its installation
and operation comply with FCC regulations Part 1 section 1.1310 as published in title 47 code of federal regulations.
Whether a given installation meets FCC limits for human exposure to radio frequency radiation may depend not only
on this equipment but also on whether the environments" being assessed are being affected by radio frequency
fields from other equipment, the effects of which may add to the level of exposure. Accordingly, the overall exposure
may be affected by radio frequency generating facilities that exist at the time the licensee's equipment is being
installed or even by equipment installed later. Therefore, the effects of any such facilities must be considered in site
selection and in determining whether a particular installation meets the FCC requirements.
FCC OET Bulletin 65 provides materials to assist in making determinations if a given facility is compliant with the
human exposure to RF radiation limits. Determining the compliance of transmitter sites of various complexities may
be accomplished by means of computational methods. For more complex sites direct measurement of the power
density may be more expedient. Additional information on the topic of electromagnetic exposure is contained in
the Motorola Standards and Guideline for Communications Sites publication. Persons responsible for installation
of this equipment are urged to consult the listed reference material to assist in determining whether a given installaĆ
tion complies with the applicable limits.
In general the following guidelines should be observed when working in or around radio transmitter sites:
" All personnel should have electromagnetic energy awareness training
" All personnel entering the site must be authorized
" Obey all posted signs
" Assume all antennas are active
" Before working on antennas, notify owners and disable appropriate transmitters
" Maintain minimum 3 feet clearance from all antennas
" Do not stop in front of antennas
" Use personal RF monitors while working near antennas
" Never operate transmitters without shields during normal operation
" Do not operate base station antennas in equipment rooms
For installations outside of the U.S., consult with the applicable governing body and standards for RF energy human
exposure requirements and take the necessary steps for compliance with local regulations.
References
TIA/EIA TSB92 Report On EME Evaluation for RF Cabinet Emissions Under FCC MPE Guidelines," Global EngiĆ
neering Documents: http://global.ihs.com/
FCC OET Bulletin 65 Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency ElectroĆ
magnetic Fields": http://www.fcc.gov/oet/rfsafety/.
Motorola Standards and Guideline for Communications Sites, Motorola manual 68P81089E50.
IEEE Recommended Practice for the Measure of Potentially Hazardous Electromagnetic Fields - RF and MicroĆ
wave, IEEE Std C95.3-1991, Publication Sales, 445 Hoes Lane, P.O. Box 1331, Piscattaway, NJ 08855-1331
IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3
kHz to 300 GHz, IEEE C95.1-1991, Publication Sales, 445 Hoes Lane, P.O. Box 1331, Piscattaway, NJ 08855-1331.