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PMP 400/430 and PTP 200/230 Series
Health Canada limits for the general population. See Safety Code 6 on the Health
Canada web site at http://www.hc-sc.gc.ca/.
ICNIRP (International Commission on Non-Ionizing Radiation Protection) guidelines for
the general public. See the ICNIRP web site at
Limiting Exposure to Time-Varying Electric, Magnetic, and Electromagnetic Fields.
The applicable power density exposure limits from the documents referenced above are
2
10 W/m
for RF energy in the 5.4-GHz frequency bands.
Peak power density in the far field of a radio frequency point source is calculated as follows:
P G
S
2
4 d
Rearranging terms to solve for distance yields
Table 18
shows calculated minimum separation distances d, recommended distances and
resulting power compliance margins for each frequency band and antenna combination.
Table 18: Calculated Exposure Distances and Power Compliance Margins
Frequency
Antenna
Band
5.4 / 5.8
Integrated,
GHz OFDM
10 dBi
Connectori
zed, 17 dBi
4.9 GHz
Integrated,
OFDM
10 dBi
Connectori
zed, 17 dBi
Issue 6.0 May 2011
Motorola PMP Solutions User Guide Supplement
where
S = power density in W/m
P = RMS transmit power capability of the radio, in W
G = total Tx gain as a factor, converted from dB
d = distance from point source, in m
d
Variable
P
G
S
0.079 W
10
10
(19 dBm)
(10 dB)
W/m
or 1
mW/c
m
0.05 W
50
10
(10 dBm)
(17 dB)
W/m
or 1
mW/c
m
0.079 W
10
10
(19 dBm)
(10 dB)
W/m
or 1
mW/c
m
0.063 W
40
10
(18 dBm)
(16 dB)
W/m
or 1
mW/c
m
http://www.icnirp.de/
and Guidelines for
2
P G
4 S
d
Recom-
mended
(calcu-
Separation
lated)
Distance
8 cm
20 cm
2
(8 in)
2
6 cm
20 cm
2
(8 in)
2
8 cm
20 cm
2
(8 in)
2
14 cm
20 cm
2
(8 in)
2
Power
Compliance
Margin
6.3
10
6.3
2
Page 72 of 77
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