Power Density Exposure Limit - Motorola PTP 500 Series User Manual
Motorola ptp 500 series point-to-point wireless bridges
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- User manual (288 pages) ,
- Deployment manual (26 pages) ,
- User manual (198 pages)
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1.8.3 Power Density Exposure Limit
The applicable power density exposure limit from the documents referenced above is:
2
•
10 W/m
for RF energy in the 2.4-, 5.2-, 5.4-, 5.8- and 5.9 GHz frequency bands.
Peak power density in the far field of a radio frequency point source is calculated as follows:
P
.
G
Where
=
S
π
2
4
d
Rearranging terms to solve for distance yields:
Equation 1 - Peak power density in the far field
S
P=
G=
d
=
d
power density in W/m
Maximum Average transmit power capability of the radio, in
total Tx gain as a factor, converted from dB
distance from point source, in m
P
.
G
π
4
.
S
8
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