Tablet PC RF Exposure Info According to 15 Techvision Intelligent Technology Co.,Ltd.

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Document DescriptionMPE Report
Document TypeRF Exposure Info
Document TitleAccording to 15

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FCC ID: 2AHYJ1020D
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
§1.1307(b)
Limits for Maximum Permissible Exposure (MPE)
Frequency
Range(MHz)
Electric Field
Strength(V/m)
Magnetic Field
Strength(A/m)
Power
Density(mW/cm2)
Average Time
(A) Limits for Occupational/Control Exposures
300-1500
--
--
F/300
6
1500-100000
--
--
5
6
(B) Limits for General Population/Uncontrol Exposures
300-1500
--
--
F/1500
6
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 cm(20cm)
Pd the limit of MPE, 1mW/cm2. If we know the maximum gain of the antenna and total power
input to the antenna, through the calculation, we will know the distance where the MPE limit is
reached.
mW=10^(dBm/10)
11.2 Measurement Result
Operation Frequency: WIFI 802.11b/g/n HT20: 2412-2462MHz,
802.11n HT40: 2422-2452MHz,
Power density limited: 1mW/ cm2
Antenna Type: FPCB Antenna
Antenna gain: 1.0dBi,
R=20cm
mW=10^(dBm/10)
802.11b/g/n:
Operation Frequency: 2402MHz~2480MHz
Power density limited: 1mW/ cm2
Antenna Type: External Antenna
Antenna gain: 1.0dBi,
R=20cm
mW=10^(dBm/10)
Bluetooth DTS:
Channel
Freq.
(MHz)
conducted
power
conducted
power
Tune-up
power
(dBm)
Max
Antenna
Evaluation result
Power density
Limits
(mW)
(dBm)
tune-up
power
Gain
(mW/cm2)
(mW/cm2 )
(dBm)
Numeric
2402
0.73
-1.38
-2±1
-1
1.26
0.000199
1
2440
0.50
-3
-2±1
-1
1.26
0.000199
1
2480
0.72
-1.44
-2±1
-1
1.26
0.000199
1
Channe
l Freq.
(MHz)
modulation
conducted
power
(mW)
conducted
power
(dBm)
Tune-up
power (dBm)
Max
tune-up power
(dBm)
Antenna
Gain
Numeric
Evaluation
result
(mW/cm2 )
Power
density
Limits
(mW/cm2)
2412
802.11b
18.49
12.67
12±1
13
1.26
0.004997
1
2437
802.11b
17.95
12.54
12±1
13
1.26
0.004997
1
2462
802.11b
18.66
12.71
12±1
13
1.26
0.004997
1
2412
802.11g
8.38
9.23
9±1
10
1.26
0.002504
1
2437
802.11g
8.20
9.14
9±1
10
1.26
0.002504
1
2462
802.11g
8.55
9.32
9±1
10
1.26
0.002504
1
2412
802.11n
H20
7.74
8.89
8±1
9
1.26
0.001989
1
2437
802.11n
H20
7.50
8.75
8±1
9
1.26
0.001989
1
2462
802.11n
H20
7.78
8.91
8±1
9
1.26
0.001989
1
2422
802.11n
H40
5.65
7.52
7±1
8
1.26
0.001580
1
2437
802.11n
H40
5.58
7.47
7±1
8
1.26
0.001580
1
2452
802.11n
H40
5.82
7.65
7±1
8
1.26
0.001580
1
Bluetooth DSS:
Channel
Freq.
(MHz)
conducted
power
conducted
power
Tune-up
power
(dBm)
Max
Antenna
Evaluation result
Power density
Limits
(mW)
(dBm)
tune-up
power
Gain
(mW/cm2)
(mW/cm2 )
(dBm)
Numeric
2402
1.55
1.91
1±1
0
1.26
0.000250
1
2441
1.55
1.9
1±1
0
1.26
0.000250
1
2480
1.42
1.53
1±1
0
1.26
0.000250
1
2402
2.08
3.18
3±1
4
1.26
0.000629
1
2441
2.07
3.16
3±1
4
1.26
0.000629
1
2480
1.86
2.7
3±1
4
1.26
0.000629
1
2402
2.21
3.45
3±1
4
1.26
0.000629
1
2441
2.24
3.51
3±1
4
1.26
0.000629
1
2480
1.96
2.92
3±1
4
1.26
0.000629
1
Conclusion:
For the max result : 0.004997≤ 3.0 for 1g SAR, No SAR is required.
Signature: Date: 2016-12-22
NAME AND TITLE (Please print or type): Jason Chen/Manager
COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E,
Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen P.R. China.
Download: Tablet PC RF Exposure Info According to 15 Techvision Intelligent Technology Co.,Ltd.
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Document ID3253113
Application IDVkh1daJIMFp+VlFoSxqjow==
Document DescriptionMPE Report
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize9.23kB (115414 bits)
Date Submitted2017-01-10 00:00:00
Date Available2017-01-10 00:00:00
Creation Date2016-12-28 06:46:57
Producing SoftwareMicrosoft Office Word 2007
Document Lastmod2016-12-28 06:46:57
Document TitleAccording to 15
Document CreatorMicrosoft Office Word 2007
Document Author: Benjamin

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