Motorola PTP 400 Series Manual De Usuario

 

 

20

2 Avoiding 

Hazards 

2.1 Preventing 

Overexposure to RF Energy 

 To protect from overexposure to RF energy, install the radios for the 400 family of 

wireless solutions so as to provide and maintain the minimum separation distances from all 

persons as shown in Table 3. 

When the system is operational, avoid standing directly in front of the antenna. Strong RF 

fields are present when the transmitter is on. The Outdoor Unit (ODU) must not be deployed 

in a location where it is possible for people to stand or walk inadvertently in front of the 

antenna.

 

At these and greater separation distances, the power density from the RF field is below 

generally accepted limits for the general population. 

These are conservative distances that include compliance margins. In the case of the 

reflector, the distance is even more conservative because the equation used models the 

reflector as a point source and ignores its physical dimensions. 

 

2.1.1  Calculations for Separation Distances and Power Compliance Margins 

Limits and guidelines for RF exposure come from: 

•  US FCC limits for the general population. See the FCC web site at 

and the policies, guidelines, and requirements in Part 1 of Title 47 of the Code of Federal 

Regulations, as well as the guidelines and suggestions for evaluating compliance in FCC 

OET Bulletin 65.  

•  Health Canada limits for the general population. See the Health Canada web site at 

 and Safety Code 6. 

•  ICNIRP (International Commission on Non-Ionizing Radiation Protection) guidelines for 

the general public. See the ICNIRP web site at 

 and Guidelines for 

Limiting Exposure to Time-Varying Electric, Magnetic, and Electromagnetic Fields.