STK Motor Control RF Exposure Info RF Exposure Hunter Douglas Window Fashions

Hunter Douglas Window Fashions Motor Control

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RF EXPOSURE
Reference:
CFR 47 FCC Part 1.1310
RSS-102. Issue 5
Description:
All measurements were peak power readings taken from test reports from accredited test labs. Antenna gains were taken
from the manufacturer’s specifications.
Limits:
Maximum exposure limits from CFR 47, FCC Part 1.1310:
Table 1 - Limits for Maximum Permissible Exposure (MPE)
Frequency range
(MHz)
Electric field strength
(V/m)
Magnetic field strength
(A/m)
Power density
(mW/cm )
Averaging time
(minutes)
(A) Limits for Occupational/Controlled Exposure
0.3-3.0
614
1.63
3.0-30
1842/f
4.89/f
*100
30-300
61.4
0.163
1.0
f/300
1.63
*100
30
30
0.2
30
f/1500
30
1.0
30
300-1,500
1,500-100,000
*900/f
(B) Limits for General Population/Uncontrolled Exposure
0.3-1.34
614
1.34-30
824/f
2.19/f
30-300
27.5
0.073
300-1,500
1,500-100,000
Page 1 of 4
*180/f
RF EXPOSURE
Calculations:
Table 2 - Calculations according to CFR 47, Part 1.1310, Table 1(B)
Occupational/Controlled
General Population/uncontrolled
Antenna
Transmitter Frequency Gain
MHz
Distance
Power
(conducted)
Power
+10% for
Power
(conducted) tolerance
Density
numerical mW
2407
1.58
2437
1.58
2462
1.58
mW
1.74
1.59
1.74
Limit at
specified
distance
mW/cm^2 mW/cm^2
1.91
0.00060
1.00
1.75
0.00055
1.00
1.91
0.00060
1.00
% of
limit
0.06%
0.06%
0.06%
20 cm
Highest Total
1 0.06%
TOTAL 0.06%
PASS?
Antenna gain was taken from manufacturer’s data sheet. Stated to be 2 dBi peak. 2 dBi = 1.58 numeric
Page 2 of 4
YES
RF EXPOSURE
Table 3 - From Table 4 of RSS-102 Issue 5
Table 4 - Calculation according to Industry Canada RSS-102, Table 6
Page 3 of 4
RF EXPOSURE
Occupational/Controlled
General Population/uncontrolled
Antenna
Transmitter Frequency Gain
MHz
Distance
Power
(conducted)
+10% for
Power
Power
(conducted) tolerance
Density
numerical mW
2412
1.58
2437
1.58
2462
1.58
mW
1.74
1.59
1.74
1.91
1.75
1.91
Limit at
specified
distance
% of
limit
mW/cm^2 mW/cm^2
0.000547
0.536602 0.10%
0.000500
0.540397 0.09%
0.000547
0.544179 0.10%
20 cm
Highest Total
1 0.10%
TOTAL 0.10%
PASS?
YES
Notes: The minimum separation distance was defined as the closest point from the transmitting antenna to any
part of the body or extremity of a user or bystander.
The limit was converted from W/cm^2 to mW/m^2 by dividing by 10
(W→mW = .001) × ( /cm2→/m2 = 100) = 0.1 = /10
The power density is calculated as shown below:
S = (P x G)/(4 x π x d^2) – used to calculate exposure at 20 cm
d = √(S/(P x G) x 4 X π) – used to calculate minimum distance to meet limits
1 mW/cm^2 = 10 W/m^2
S= power density
P = transmitter conducted power (in mW)
G = antenna numeric gain
D = distance to radiation center
Antenna gain was taken from manufacturer’s data sheet. Stated to be 2 dBi peak. 2 dBi = 1.58 numeric
Page 4 of 4
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Document DescriptionRF Exposure
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize40.55kB (506815 bits)
Date Submitted2018-01-08 00:00:00
Date Available2018-01-08 00:00:00
Creation Date2017-11-22 18:09:42
Producing SoftwareMicrosoft® Word 2010
Document Lastmod2017-11-27 07:25:59
Document TitleRF Exposure
Document CreatorMicrosoft® Word 2010
Document Author: Nic Johnson

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