User's Manual

User Manual
Page 6 of 8
3.3 RF ENERGY EXPOSURE AWARENESS, CONTROL INFORMATION, and OPERATIONAL
INSTRUCTIONS for COMPLIANCE with FCC RF EXPOSURE LIMITS
NOTICE: This power amplifier product is intended for use in environments in which
personnel have full knowledge of their exposure and can exercise control over their
exposure to meet FCC limits. This power amplifier is NOT authorized for use by the
general population, consumer, or for use under conditions where unintended or accidental
exposure may occur.
This power amplifier product generates electromagnetic energy in the radio frequency (RF)
spectrum to provide communications between users over a distance. RF energy is one specific
form of electromagnetic energy. Other forms include, but are not
limited to, sunlight and x-rays. RF energy, however, should not be confused with these other
forms of electromagnetic energy, which when used improperly, can cause biological damage.
Very high levels of x-rays, for example, can damage tissues and genetic material.
Experts in science, engineering, medicine, health, and industry work with organizations to
develop standards for safe exposure to RF energy. These standards provide recommended
acceptable levels for personnel who may be exposed to RF energy. The RF exposure levels
described therein include substantial margins of protection.
When properly installed and used, Crescend power amplifier products meet all government-
established RF exposure levels. In addition, Crescend recommends specific operating
instructions for users of its power amplifier products. These instructions are important because
they inform users about RF energy exposure and provide simple procedures on how to control it.
Please refer to the following Web sites for more information on the nature of RF energy exposure
and how to control your exposure to assure compliance with established RF exposure limits.
http://www.fcc.gov/oet/rfsafety/rf-faqs.html
http://www.osha.gov/SLTC/radiofrequencyradiation/index.html
Federal Communication Commission Regulations
The FCC rules require manufacturers to comply with the FCC RF energy exposure limits for
communication devices before they can be marketed in the U.S. The FCC further requires users
to be fully aware of and able to control their exposure to meet RF energy exposure limits. This
document includes operating instructions and information required to control your RF exposure
and to satisfy compliance requirements.
RF Exposure Compliance, Control Guidelines and Operating Instructions
To control exposure to yourself and others and to ensure compliance with the RF exposure limits,
always adhere to the following guidelines.
• Crescend power amplifier products are intended for use in fixed communication locations (e.g.
base station sites). The antenna installation must comply with the following requirements to
ensure optimum performance and compliance with the RF energy exposure limits required by the
FCC.
1) The antenna should be mounted outside the site building on a roof, tower, or other
support structure such that its location is inaccessible to personnel within the Minimum
Permissible Exposure radius (see below).