2 Avoiding Hazards
22
2 Avoiding
Hazards
2.1
Preventing Overexposure to RF Energy
WARNING:
To protect from overexposure to RF energy, install the radios for the 500 family
of PTP 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.
NOTE:
These are conservative distances that include compliance margins.
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
http://www.hc-sc.gc.ca/ewh-semt/pubs/radiation/99ehd-dhm237/limits-limites_e.html and
•
EN 50383:2002 Basic standard for the calculation and measurement of electromagnetic
field strength and SAR related to human exposure from radio base stations and fixed
terminal stations for wireless telecommunication systems (110 MHz - 40 GHz)
•
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.
The applicable power density exposure limits from the documents referenced above are:
•
10
W/m
2
for RF energy in the 2.4-, 5.2-, 5.4-, 5.8- and 5.9 GHz frequency bands.
Содержание PTP 54500
Страница 1: ...PTP 500 Series User Guide MOTOROLA POINT TO POINT WIRELESS SOLUTIONS ...
Страница 2: ......
Страница 132: ...8 Web Page Reference 130 Figure 65 Spectrum Management Slave Screen With Operational Restrictions ...
Страница 190: ...14 Data Rate Calculations 188 Figure 111 QPSK 0 50 Single Payload Figure 112 QPSK 0 75 Single Payload ...
Страница 191: ...14 Data Rate Calculations 189 Figure 113 16 QAM 0 50 Single Payload Figure 114 16 QAM 0 75 Single Payload ...
Страница 192: ...14 Data Rate Calculations 190 Figure 115 64 QAM 0 67 Single Payload Figure 116 64 QAM 0 83 Single Payload ...
Страница 193: ...14 Data Rate Calculations 191 Figure 117 QPSK 0 50 Dual Payload Figure 118 QPSK 0 75 Dual Payload ...
Страница 194: ...14 Data Rate Calculations 192 Figure 119 16 QAM 0 50 Dual Payload Figure 120 16 QAM 0 75 Dual Payload ...
Страница 195: ...14 Data Rate Calculations 193 Figure 121 64 QAM 0 67 Dual Payload Figure 122 64 QAM 0 83 Dual Payload ...
Страница 205: ...16 Legal and Regulatory Notices 203 16 4 Exposure See Section 2 Avoiding Hazards ...