WB01 MYNT WIRELESS CHARGER RF Exposure Info RSHA181016001-00B_FCC Part15C Slightech, Inc.

Slightech, Inc. MYNT WIRELESS CHARGER

Page 1 of WB01 MYNT WIRELESS CHARGER RF Exposure Info RSHA181016001-00B_FCC Part15C Slightech, Inc.
Page 2 of WB01 MYNT WIRELESS CHARGER RF Exposure Info RSHA181016001-00B_FCC Part15C Slightech, Inc.
Page 3 of WB01 MYNT WIRELESS CHARGER RF Exposure Info RSHA181016001-00B_FCC Part15C Slightech, Inc.

Bay Area Compliance Laboratories Corp. (Kunshan)
Report No.: RSHA181016001-00B
FCC §1.1307& §1.1310 – RF EXPOSURE
Applicable Standard
FCC §1.1307 & 1.1310
According to the item 5.2 of KDB 680106 D01 RF Exposure Wireless Charging Apps v03: Inductive
wireless power transfer applications that meet all of the following requirements are excluded from
submitting an RF evaluation.
a) Power transfer frequency is less that 1 MHz.
b) Output power from each primary coil is less than or equal to 15 watts.
c) The transfer system includes only single primary and secondary coils. This includes charging systems that
may have multiple primary coils and clients that are able to detect and allow coupling only between
individual pairs of coils.
d) Client device is placed directly in contact with the transmitter.
e) Mobile exposure conditions only (portable exposure conditions are not covered by this exclusion).
f) The aggregate H-field strengths at 15 cm surrounding the device and 20 cm above the top surface from all
simultaneous transmitting coils are demonstrated to be less than 50% of the MPE limit.
Limits for Maximum Permissible Exposure (MPE)
(B) Limits for General Population/Uncontrolled Exposure
Frequency Range
(MHz)
0.3-3.0
3.0-30
30-300
300-1,500
1,500-100,000
0.3-1.34
1.34-30
30-300
300-1500
1500-100,000
Electric Field
Strength (V/m)
Magnetic Field
Power Density
Strength (A/m)
(mW/cm2)
(A) Limits for Occupational/Controlled Exposure
614
1.63
*100
1842/f
4.89/f
*900/f2
61.4
0.163
1.0
f/300
(B) Limits for General Population/Uncontrolled Exposure
614
1.63
*(100)
824/f
2.19/f
*(180/f²)
27.5
0.073
0.2
f/1500
1.0
Averaging Time
(minutes)
30
30
30
30
30
f = frequency in MHz; * = Plane-wave equivalent power density;
FCC Part 15C
Page 10 of 27
Bay Area Compliance Laboratories Corp. (Kunshan)
Report No.: RSHA181016001-00B
EUT Setup
Result
a) Power transfer frequency is less that 1 MHz.
Yes, the device operates in the frequency 110 kHz-205kHz.
b) Output power from each primary coil is less than or equal to 15 watts.
Yes, the maximum output power of the primary coil is 10W<15W.
c) The transfer system includes only single primary and secondary coils. This includes charging systems that
may have multiple primary coils and clients that are able to detect and allow coupling only between
individual pairs of coils..
Yes, the transfer system including a charging system with only single primary coils is to detect and allow
only between individual of coils.
d) Client device is inserted in or placed directly in contact with the transmitter.
Yes, client device is placed directly in contact with the transmitter.
e) Mobile exposure conditions only (portable exposure conditions are not covered by this exclusion).
Yes, this is a mobile device.
f) The aggregate H-field strengths at 15 cm surrounding the device and 20 cm above the top surface from all
simultaneous transmitting coils are demonstrated to be less than 50% of the MPE limit.
The EUT H-field Strength levels at 15cm surrounding the device and 20 cm above the top surface are less
than 50% the MPE limit.
FCC Part 15C
Page 11 of 27
Bay Area Compliance Laboratories Corp. (Kunshan)
Report No.: RSHA181016001-00B
Test Data
Environmental Conditions
Temperature:
24.2℃
Relative Humidity:
51 %
101.2 kPa
ATM Pressure:
The testing was performed by Stone Zhang on 2018-11-12.
For DC 5V
H-Filed Strength
Frequency
Range
(kHz)
Position
(A/m)
Position
(A/m)
Position
(A/m)
Position
(A/m)
Position
(A/m)
Limit
Test
(A/m)
Maximum
ration of
MPE limit
110-205
0.175
0.198
0.258
0.189
0.457
1.63
28.03%
Frequency
Range
(kHz)
Position
(V/m)
Position
(V/m)
Position
(V/m)
Position
(V/m)
Position
(V/m)
Limit
Test
(V/m)
Maximum
ration of
MPE limit
110-205
2.35
2.23
2.46
3.23
5.90
614
0.96%
Frequency
Range
(kHz)
Position
(A/m)
Position
(A/m)
Position
(A/m)
Position
(A/m)
Position
(A/m)
Limit
Test
(A/m)
Maximum
ration of
MPE limit
110-205
0.177
0.201
0.262
0.191
0.459
1.63
28.16%
Frequency
Range
(kHz)
Position
(V/m)
Position
(V/m)
Position
(V/m)
Position
(V/m)
Position
(V/m)
Limit
Test
(V/m)
Maximum
ration of
MPE limit
110-205
2.37
2.26
2.49
3.28
5.93
614
0.97%
E-Filed Strength
For DC 9V
H-Filed Strength
E-Filed Strength
Note:
1: According with KDB 680106 D01 RF Exposure Wireless Charging Apps v03, Emissions between 100 kHz to 300
kHz should be assessed versus the limits at 300 kHz in Table 1 of Section 1.1310: 614V/m and 1.63 A/m.
2: The distance for position A, B, C, D are 15cm, the distance for position E is 20cm.
FCC Part 15C
Page 12 of 27
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Document ID4117984
Application IDfoh4IWb9Oi4K/gIwL0IiDg==
Document DescriptionRF Exposure
Short Term ConfidentialNo
Permanent ConfidentialNo
SupercedeNo
Document TypeRF Exposure Info
Display FormatAdobe Acrobat PDF - pdf
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Date Submitted2018-12-27 00:00:00
Date Available2018-12-27 00:00:00
Creation Date2018-12-25 14:35:38
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Document Lastmod2018-12-26 21:43:27
Document TitleRSHA181016001-00B_FCC Part15C
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