E F Johnson Company 2424140 Benutzerhandbuch

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This two-way radio uses electromagnetic energy 

in the radio frequency (RF) spectrum to provide 
communications between two or more users over a 
distance. It uses radio frequency (RF) energy or radio 
waves to send and receive calls. RF energy is one form 
of electromagnetic energy. Other forms include, but 
are not limited to, electric power, 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 stan-
dards for exposure to RF energy. These standards 
provide recommended levels of RF exposure for both 
workers and the general public. These recommended 
RF exposure levels include substantial margins of 
protection. All two-way radios marketed in North 
America are designed, manufactured and tested to 
ensure they meet government established RF expo-
sure levels. In addition, manufacturers also recom-
mend specific operating instructions to users of two-
way radios. 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 what RF energy exposure is 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/radiofrequencyradia-
tion/index.html 

The FCC rules require manufacturers to comply 

with the FCC RF energy exposure limits for portable 
two-way radios before they can be marketed in the U.S. 
When two-way radios are used as a consequence of 
employment, the FCC requires users to be fully aware of 
and able to control their exposure to meet occupational 
requirements. Exposure awareness can be facilitated by 
the use of a product label directing users to specific user 
awareness information. Your EFJohnson two-way radio 
has a RF exposure product label. Also, your EFJohnson 
user manual, or product manual, or separate safety 
booklet includes information and operating instructions 
required to control your RF exposure and to satisfy 
compliance requirements. 

Your EFJohnson two-way radio is designed and 

tested to comply with a number of national and interna-
tional standards and guidelines (listed below) for human 
exposure to radio frequency electromagnetic energy. This 
radio complies with the IEEE and ICNIRP exposure 
limits for occupational/controlled RF exposure environ-
ment at operating duty factors of up to 50% transmitting 
and is authorized by the FCC for occupational use only. 
In terms of measuring RF energy for compliance with the 
FCC exposure guidelines, your radio radiates measurable 
RF energy only while it is transmitting (during talking), 
not when it is receiving (listening) or in standby mode. 

Your EFJohnson two-way radio complies with the 

following RF energy exposure standards and guidelines:

•

United States Federal Communications Commission, 
Code of Federal Regulations; 47 CFR §§ 1.1307, 
1.1310, 2.1091 and 2.1093 

•

American National Standards Institute (ANSI) / Insti-
tute of Electrical and Electronic Engineers (IEEE) 
C95. 1-1992