A3391 Soundcore Rave RF Exposure Info According to §15 Anker Innovations Limited

Anker Innovations Limited Soundcore Rave

Page 1 of A3391 Soundcore Rave RF Exposure Info According to §15 Anker Innovations Limited
Page 2 of A3391 Soundcore Rave RF Exposure Info According to §15 Anker Innovations Limited

FCC ID : 2AOKB-A3391
RF EXPOSURE EVALUATION
According to FCC 1.1310: The criteria listed in the following table shall be used to
evaluate the environment impact of human exposure to radio frequency (RF)
Radiation as specified in ยง1.1307(b)
Limits for Maximum Permissible Exposure (MPE)
Frequency
Range(MHz)
Electric Field
Strength(V/m)
Magnetic
Power
Average
Field
Density(mW/cm )
Time
Strength(A/m)
(A) Limits for Occupational/Control Exposures
300-1500
--F/300
1500-100000
--5
(B) Limits for General Population/Uncontrol Exposures
300-1500
--F/1500
1500-100000
--1
30
11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R2)
Where
Pd= Power density in mW/cm2
Pout=output power to antenna in mW
G= Numeric gain of the antenna relative to isotropic antenna
Pi=3.1416
R= distance between observation point and center of the radiator in 20cm
Pd the limit of MPE, 1mW/cm2. If we know the maximum gain of the nd total
power input to the antenna, through the calculation, we will know the distance
where the MPE limit is reached.
11.2 Measurement Result
Antenna gain: 3.75dBi
BT
Max
tune-up
power
(dBm)
Antenna
Gain
Numeric
Evaluation
result
(mW/cm2 )
Power density
Limits
(mW/cm2 )
1.5
2.37
0.00067
2441
0.657
3.687
4.5
2.37
0.00133
GFSK
2480
4.072
4.5
2.37
0.00133
pi/4-DQPSK
2402
-0.576
1.0
2.37
0.00059
pi/4-DQPSK
2441
2.366
3.0
2.37
0.00094
pi/4-DQPSK
2480
2.827
3.5
2.37
0.00106
8DPSK
2402
-0.052
1.0
2.37
0.00059
8DPSK
2441
2.837`
3.5
2.37
0.00106
8DPSK
2480
3.309
4.0
2.37
0.00119
Mode
Channel
Freq.
(MHz)
Measured
power
(dBm)
Max
tune-up
power
(dBm)
Antenna
Gain
Numeric
Evaluation
result
(mW/cm2 )
Power density
Limits
(mW/cm2 )
GFSK
2402
3.32
4.0
2.37
0.00119
GFSK
2440
3.35
4.0
2.37
0.00119
GFSK
2480
3.06
4.0
2.37
0.00119
Mode
Channel
Freq.
(MHz)
Measured
power
(dBm)
GFSK
2402
GFSK
BLE
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Document ID4118049
Application IDVOBWlw1GZtFfMA6ygYojJA==
Document DescriptionMPE
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize1.99kB (24869 bits)
Date Submitted2018-12-27 00:00:00
Date Available2018-12-27 00:00:00
Creation Date2018-12-25 14:05:46
Producing SoftwareAdobe PDF Library 15.0
Document Lastmod2018-12-25 14:05:47
Document TitleAccording to §15
Document CreatorAcrobat PDFMaker 15 Word 版
Document Author: Benjamin

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