HWB1BLE40 HALO Home Internet Access Bridge RF Exposure Info RF Exposure Evaluation Result Cooper Lighting LLC

Cooper Lighting LLC HALO Home Internet Access Bridge

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Compliance Certification Services (Shenzhen) Inc.
Report No: C171026Z02-RP1_MPE
FCC ID: 2AKCY-HWB1BLE40
Date of Issue: November 16, 2017
MPE Report
Exposure category: General population/uncontrolled environment
EUT Type: Production Unit
Device Type: Mobile Device
Refer Standard: KDB 447498 D01 General RF Exposure Guidance v06
FCC Part 2 §2.1091
1. Evaluation method
Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that
ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s
guidelines.
In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile
device whereby a distance of 0.2m normally can be maintained between the user and the device, and
below RF Permissible Exposure limit shall comply with.
In accordance with HWB1BLE40AWH for Simultaneous transmission MPE test exclusion applies
when the sum of the MPE ratios for all simultaneous transmitting antennas incorporated in a host device,
based on the calculated/estimated, numerically modeled or measured field strengths or power density, is
≤ 1.0. The MPE ratio of each antenna is determined at the minimum test separation distance required by
the operating configurations and exposure conditions of the host device, according to the ratio of field
strengths or power density to MPE limit, at the test frequency. Either the maximum peak or spatially
averaged results from measurements or numerical simulations may be used to determine the MPE ratios.
Spatial averaging does not apply when MPE is estimated using simple calculations based on far-field
plane-wave equivalent conditions. The antenna installation and operating requirements for the host
device must meet the minimum test separation distances required by all antennas, in both standalone
and simultaneous transmission operations, to satisfy compliance.
2. Limits for General Population/Uncontrolled Exposure
3. Calculation Method
Predication of MPE limit at a given distance
Equation from page 18 of OET Bulletin 65, Edition 97-01
S=PG/4πR²
Where: S=power density
Compliance Certification Services (Shenzhen) Inc.
Report No: C171026Z02-RP1_MPE
FCC ID: 2AKCY-HWB1BLE40
Date of Issue: November 16, 2017
P=power input to antenna
G=power gain of the antenna in the direction of interest relative to an isotropic radiator
R=distance to the center of radiation of the antenna
From the EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the
maximum gain of the used 0dBi for Bluetooth, the RF power density can be obtained.
Frequency
Band
Antenna type and antenna
number
Maximum antenna
gain
BT
BT Antenna
2dBi
2.4G
WLAN Antenna
0.44dBi
4. Estimation Result
4.1 Conducted Power Results
Bluetooth
Mode
GFSK-BLE
GFSK
π/4DQPSK
8DPSK
Channel
Frequency(MHz)
00
2402
19
2440
39
2480
00
2402
39
2441
78
2480
00
2402
39
2441
78
2480
00
2402
39
2441
78
2480
Peak Conducted Output
Power (dBm)
0.64
2.27
2.13
2.89
4.28
3.67
0.04
1.89
1.08
0.51
2.35
1.69
2.4GHz WIFI
Mode
Frequency(MHz)
2412
IEEE 802.11b
2437
2462
2412
IEEE 802.11g
2437
2462
2412
IEEE 802.11n HT20
2437
2462
Peak Conducted Output Power
(dBm)
12.77
12.67
12.67
16.96
17.21
17.83
16.78
17.21
17.66
Compliance Certification Services (Shenzhen) Inc.
Report No: C171026Z02-RP1_MPE
FCC ID: 2AKCY-HWB1BLE40
15.58
15.40
15.36
2412
IEEE 802.11n HT40
Date of Issue: November 16, 2017
2437
2462
4.2 Manufacturing tolerance
Bluetooth
GFSK-BLE
Channel
Channel 00
Channel 19
Channel 39
Maximum Output Power
(dBm)
0.64
2.27
2.13
GFSK
Channel
Channel 00
Channel 39
Channel 78
Maximum Output Power (dBm)
2.89
4.28
3.67
π/4DQPSK
Channel
Channel 00
Channel 39
Channel 78
Maximum Output Power (dBm)
0.04
1.89
1.08
8DPSK
Channel
Channel 00
Channel 39
Channel 78
Maximum Output Power (dBm)
0.51
2.35
1.69
2.4GHz WIFI
IEEE 802.11b
Frequency(MHz)
2412
2437
2462
Maximum Output Power (dBm)
12.77
12.67
12.67
IEEE 802.11 g
Frequency(MHz)
2412
2437
2462
Maximum Output Power (dBm)
16.96
17.21
17.83
IEEE 802.11n HT20
Frequency(MHz)
2412
2437
2462
Maximum Output Power (dBm)
16.78
17.21
17.66
IEEE 802.11n HT40
Frequency(MHz)
2412
2437
2462
Maximum Output Power (dBm)
15.58
15.40
15.36
Compliance Certification Services (Shenzhen) Inc.
Report No: C171026Z02-RP1_MPE
FCC ID: 2AKCY-HWB1BLE40
Date of Issue: November 16, 2017
4.3 Measurement Results
4.3.1 Standalone MPE
Bluetooth
Output power
(Including tune-up
tolerance)
Mode
GFSK-LE
GFSK
8DPSK
/4-DQPSK
Antenna
Gain
(dBi)
Antenna
Gain
(linear)
Duty
Cycle
MPE
(mW/cm2)
MPE
Limits
(mW/cm2)
(dBm)
(mW)
2.27
4.28
1.89
2.35
1.6866
1.5849
100%
0.00053
1.0000
2.6792
1.5849
100%
0.00085
1.0000
1.5453
1.5849
100%
0.00049
1.0000
1.7179
1.5849
100%
0.00054
1.0000
2.4GWLAN
(dBm)
(mW)
Antenna
Gain
(dBi)
12.77
17.83
17.66
15.58
18.9234
0.44
1.1066
100%
0.00417
1.0000
60.6736
0.44
1.1066
100%
0.01336
1.0000
58.3445
0.44
1.1066
100%
0.01285
1.0000
36.1410
0.44
1.1066
100%
0.00796
1.0000
Output power
Mode
IEEE 802.11 b
IEEE 802.11 g
IEEE 802.11 n HT20
IEEE 802.11 n HT40
Antenna
Gain
(linear)
Duty
Cycle
MPE
(mW/cm2)
MPE Limits
(mW/cm2)
Maximum MPE Ratios for BT and 2.4GHz WLAN simultaneous transmission
Maximum MPE
Ratio2.4GHzBT
Maximum MPE
Ratio2.4GHzWLAN
∑MPEratios
Limit
Results
0.00085
0.01336
0.01421
1.000
Pass
Remark:
1.
Maximum average power including tune-up tolerance;
2.
MPE use distance is 20cm from manufacturer declaration of user manual.
3.
We choose 2402 MHz for Bluetooth and 2412MHz (lowest frequency operate at
2.4GHz)to calculate MPE limit as higher frequency will have higher MPE limits
According to KDB447498 for Transmitters used in mobile exposure conditions for simultaneous
transmission operations;
Conclusion
The measurement results comply with the FCC Limit per 47 CFR 2.1091 for the uncontrolled RF
Exposure of mobile device.
---------------- END OF REPORT---------------
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Document ID3710665
Application ID9Zt/TI7wV5dX0K+VBxNqJg==
Document DescriptionRF exposure evaluation
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
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Date Submitted2018-01-11 00:00:00
Date Available2018-01-11 00:00:00
Creation Date2018-01-11 09:44:14
Producing SoftwareMicrosoft® Office Word 2007
Document Lastmod2018-01-11 17:44:24
Document TitleRF Exposure Evaluation Result
Document CreatorMicrosoft® Office Word 2007
Document Author: User

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