Q800PRO THINKWARE DASH CAM RF Exposure Info RF exposure_Q800PROx THINKWARE CORPORATION

THINKWARE CORPORATION THINKWARE DASH CAM

Page 1 of Q800PRO THINKWARE DASH CAM RF Exposure Info RF exposure_Q800PROx THINKWARE CORPORATION

RF exposure
According to FCC part 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
(㎒)
Electric field
strength(V/m)
Magnetic field
strength (A/m)
Power density
(㎽/㎠)
Average time
(A) Limits for Occupational / Control Exposures
300 – 1 500
--
--
f/300
1 500 - 100000
--
--
(B) Limits for General Population / Uncontrol Exposures
300 – 1 500
--
--
f/1500
1 500 – 100 000
--
--
30
f= frequency in ㎒
Friis transmission formula: Pd = (Pout×G)/(4×pi×R2)
Where,
Pd = power density in ㎽/㎠
Pout = output power to antenna in ㎽
G = gain of antenna in linear scale
Pi = 3.1416
R = distance between observation point and center of the radiator in cm
Pd the limit of MPE, 1 ㎽/㎠. If we know the maximum gain of the antenna and the total power
input to the antenna, through the calculation, we will know the distance where the MPE limit is
reached.
Results – Wi-Fi (Worst case)
Mode
Max tune-up power
(㏈m)
Antenna
gain (㏈i)
Power density
at 20 ㎝(㎽/㎠)
Limit
(㎽/㎠)
802.11b
15
3.96
0.015 66
802.11g
12
3.96
0.007 85
802.11n(HT20)
11
3.96
0.006 23
802.11n(HT40)
10
3.96
0.004 95
FCC ID: 2ADTG-Q800PRO
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Document ID4123683
Application IDAYpD/U8RFPnqnTK3oeOJOQ==
Document DescriptionRF exposure report
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
Filesize12.65kB (158187 bits)
Date Submitted2018-12-30 00:00:00
Date Available2018-12-30 00:00:00
Creation Date2018-12-16 14:26:10
Producing SoftwareAcrobat Distiller 11.0 (Windows)
Document Lastmod2018-12-18 17:20:53
Document TitleRF exposure_Q800PROx
Document CreatorPScript5.dll Version 5.2.2
Document Author: KES-PC-1711

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