GTS UT-16 Wireless Charger User Guide

Shenzhen Global Test Service Co.,Ltd.
No.7-101 and 8A-104, Building 7 and 8, DCC Cuttural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong

Report No.: GTS20190903009-1-4-2

TEST REPORT

Date of issue
Equipment under Test| WIRELESS CHARGER
---|---
Model /Type| UT-16
Listed Models| WG-3B, UT-15, UT-22, UT-14, UT-21, UT-20, UT-30
Applicant| JE DEVELOPMENT GROUPLIMITED
Address| FLAT BO7 FLO023, HOVER INDUSTRIAL BUILDING, NO 26-38
KWAI CHEONG ROAD. N.T. HONG KONG
Manufacturer| JE DEVELOPMENT GROUPLIMITED
Address| FLAT BO7 FLO023, HOVER INDUSTRIAL BUILDING, NO 26-38
KWAI CHEONG ROAD. N.T. HONG KONG
Factory| SHEN ZHEN JEWAY TECHNOLOGY CO, LTD
Address| C BUILDING YANBIAN XUEZIWEI INDUXTRY SHAJING CITY
BAOAN DIS SHENZHEN, CHINA
Test Result:| PASS
---|---

The test report merely corresponds to the test sample.
It is not permitted to copy extracts of these test result without the written permission of the test laboratory.

SUMMARY

1.1 General Remarks

1.2 Product Description

Input: 100-240V~, 50/60Hz;0.7A MAX
Output: 12V===2A
Wireless Charger
Antenna Type| Coil Antenna
Antenna Gain| 0.0dBi
Operation frequency| 110KHz~205KHz
Modulation Type| ASK

1.3 Description of the test mode
Equipment under test was operated during the measurement under the following conditions:
[X] Charging and communication mode

Test Conditions| Description|
---|---|---
TM 1| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1(Battery Status: <1%)| Pre- tested
TM2| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1(Battery Status: <50%)| Pre- tested
TM3| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1(Battery Status: 100%)| Pre- tested
TM4| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 2(Battery Status: <1%)| Pre- tested
TM5| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 2(Battery Status: <50%)| Pre- tested
TM6| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 2(Battery Status: 100%)| Pre- tested
TM7| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 3(Battery Status: <1%)| Pre- tested
TM8| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 3(Battery Status: <50%)| Pre- tested
TM9| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 3(Battery Status: 100%)| Pre- tested
TM10| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1+ Mobile Phone 2(Battery Status: <1%)| Pre-tested
TM11| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1+ Mobile Phone 2(Battery Status: <50%)| Pre-tested
TM12| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1+ Mobile Phone 2(Battery Status: 100%)| Pre-tested
TM13| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1+ Mobile Phone 3(Battery Status: <1%)| Pre-tested
TM14| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1+ Mobile Phone 3(Battery Status: <50%)| Pre-tested
TM15| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1+ Mobile Phone 3(Battery Status: 100%)| Pre-tested
TM16| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 2+ Mobile Phone 3(Battery Status: <1%)| Pre-tested
TM17| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 2+ Mobile Phone 3(Battery Status: <50%)| Pre-tested
TM18| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 2+ Mobile Phone 3(Battery Status: 100%)| Pre-tested
TM19| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1+Mobile Phone 2+ Mobile Phone
3(Battery Status: <1%)| Record
TM20| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1+Mobile Phone 2+ Mobile Phone
3(Battery Status: <50%)| Record
TM21| AC/DC Adapter (12V/2A) + EUT + Mobile Phone 1+Mobile Phone 2+ Mobile Phone
3(Battery Status: 100%)| Record
Note: All test modes were pre-tested, but we only recorded the worst case in this report.

1.4 Modifications
No modifications were implemented to meet testing criteria.

TEST ENVIRONMENT

2.1 Address of the test laboratory
Shenzhen Global Test Service Co.,Ltd.
No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong
The 3m-Semi anechoic test site fulfils CISPR 16-1-4 according to ANSI C63.4:2014 and CISPR 16-1-4:2010 SVSWR requirement for radiated emission above 1GHz.
2.2 Test Facility
The test facility is recognized, certified, or accredited by the following organizations:
FCC-Registration No.: 165725
Shenzhen Global Test Service Co.,Ltd EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files.
A2LA-Lab Cert. No.: 4758.01
Shenzhen Global Test Service Co.,Ltd. EMC Laboratory has been accredited by A2LA for technical competence in the field of electrical testing, and proved to be in compliance with ISO/IEC 17025: 2005 General Requirements for the Competence of Testing and Calibration Laboratories and any additional program requirements in the identified field of testing.
CNAS-Lab Code: L8169
Shenzhen Global Test Service Co.,Ltd. has been assessed and proved to be in compliance with CNAS- CLO1 Accreditation Criteria for Testing and Calibration Laboratories (identical to ISO/IEC 17025: 2005 General Requirements) for the Competence of Testing and Calibration Laboratories. Date of Registration: Dec. 11, 2015. Valid time is until Dec. 10, 2024.

2.3 Environmental conditions
During the measurement the environmental conditions were within the listed ranges:

2.4 Summary of measurement results

2.5 Statement of the measurement uncertainty
The data and results referenced in this document are true and accurate. The reader is cautioned that there  may be errors within the calibration limits of the equipment and facilities. The measurement uncertainty was calculated for all measurements listed in this test report acc. to CISPR 16 – 4 ,Specification for radio disturbance and immunity measuring apparatus and methods – Part 4: Uncertainty in EMC Measurements” and is documented in the Shenzhen Global Test Service Co.,Ltd quality system acc. to DIN EN ISO/IEC 17025. Furthermore, component and process variability of devices similar to that tested may result in additional deviation. The manufacturer has the sole responsibility of continued compliance of the device.
Hereafter the best measurement capability for Shenzhen GTS laboratory is reported:

(1) This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=2.
2.6 Equipments Used during the Test

Description| Brand| Model No.| Frequency Range| Calibrated Date| Calibrated Until
---|---|---|---|---|---
Broadband Field
Meter| NARDA| NBM-550| –| Dec. 28, 2018| Dec. 27, 2019
Magnetic Field Meter| NARDA| ELT-400| 1 — 400kHz| Dec. 28, 2018| Dec. 27, 2019
Magnetic Probe| NARDA| HF-3061| 300kHz — 30MHz| Dec. 28, 2018| Dec. 27, 2019
Magnetic Probe| NARDA| HF-0191| 27 — 1000MHz| Dec. 28, 2018| Dec. 27, 2019
Broadband Field
Meter| NARDA| NBM-550| –| Dec. 28, 2018| Dec. 27, 2019
Electric Field Meter| COMBINOVA| EFM 200| 5Hz — 400kHz| Dec. 28, 2018| Dec. 27, 2019
E-Field Probe| NARDA| EF-0391| 100kHz — 3GHz| Dec. 28, 2018| Dec. 27, 2019
E-Field Probe| NARDA| EF-6091| 100MHz — 60GHz| Dec. 28, 2018| Dec. 27, 2019

Note: The Cal.Interval was one year.

TEST CONDITIONS AND RESULTS

3.1 Applicable Standard
According to §1.1307(b)(1), systems operating under the provisions of this 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.
According to §1.1310 and §2.1091 RF exposure is calculated.
According KDB 680106 D01 RF Exposure Wireless Charging App v0 3
3.2 Limit
Limits for Maximum Permissible Exposure (MPE)/Controlled Exposure

Frequency Range(MHz)| Electric Field Strength(V/m)| Magnetic Field Strength(A/m)| Power Density (mW/cm2)| Averaging Time (minute)
---|---|---|---|---
Limits for Occupational/Controlled Exposure
0.3 – 3.0| 614| 2.| (100) | 6
3.0 – 30| 1842/f| 4.89/f| (900/f)| 6
30 – 300| 61.| 0.163| 1.0| 6
300 – 1500| /| /| f/300| 6
1500 – 100,000| /| /| 5| 6

Limits for Maximum Permissible Exposure (MPE)/Uncontrolled Exposure

Frequency
Range(MHz)| Electric Field
Strength(V/m)| Magnetic Field
Strength(A/m)| Power Density
(mW/cm2)| Averaging Time
(minute)
---|---|---|---|---
Limits for Occupational/Controlled Exposure
0.3 — 3.0| 614| 2.| (100)| 30
3.0 — 30| 824/f| 2.19/f| (180/f)*| 30
30 – 300| 28.| 0.073| 0.2| 30
300 – 1500| /| /| f/1500| 30
1500 – 100.000| /| /| 1.0| 30

F=frequency in MHz
*=Plane-wave equivalent power density
3.3 Test Setup

Note: A, B, C, D, E, F for six surfaces of the product.

3.4 Measurement Procedure
a) The RF exposure test was performed on 360 degree turn table in anechoic chamber.
b) The measurement probe was placed at test distance (10cm) which is between the edge of the charger and the geometric centre of probe.
c) The turn table was rotated 360d degree to search of highest strength.
d) The highest emission level was recorded and compared with limit as soon as measurement of each points (A, B, C, D, E) were completed.
e) The EUT were measured according to the dictates of KDB 680106 D01 RF Exposure Wireless Charging App v03.
3.5 Test Result of E and H field Strength
E-Field Strength at 15 cm from the edges surrounding the EUT and 15cm from the top surface of the EUT

Test port| Chargin g  Battery

Level

| Frequency Range (MHz)| Measured E-Field Strength Values (V/m)| FCC E- Field Strength 50%  Limits (V/m)| FCC E- Field Strength Limits ( V/m)

---|---|---|---|---|---
Test

Position

A

| Test Position

B

| Test

Position

C

| Test

Position

D

| Test

Position

E

Phone

port 1

| 1%| 0.145| 2.57| 2.46| 2.12| 2.20| 3.44| 307.0| 614.0
50%| 0.145| 2.35| 2.21| 1.94| 1.97| 3.14| 307.0| 614.0
99%| 0.145| 1.05| 0.98| 0.85| 0.88| 1.31| 307.0| 614.0
Phone

port 2

| 1%| 0.145| 2.52| 2.66| 1.95| 1.98| 3.76| 307.0| 614.0
50%| 0.145| 2.24| 2.38| 1.80| 1.85| 2.85| 307.0| 614.0
99%| 0.145| 0.95| 1.10| 0.70| 0.91| 1.17| 307.0| 614.0
Phone

port 3

| 1%| 0.145| 2.44| 2.80| 2.05| 2.19| 3.54| 307.0| 614.0
50%| 0.145| 2.15| 2.53| 1.79| 1.84| 3.20| 307.0| 614.0
99%| 0.145| 0.99| 1.03| 0.89| 0.96| 1.42| 307.0| 614.0

H-Field Strength at 15 cm from the edges surrounding the EUT and 15cm from the top surface of the EUT

Test

port

| Chargin

g

Battery

Level

| Frequency

Range

(MHz)

| Measured E-Field Strength| Values ( &m)

Test

Position

D

| | FCC H-

Field

Strength

50%

Limits

(Aim)

| FCC H-

Field

Strength

Limits

(A/m)

---|---|---|---|---|---|---|---
Test

Position

A

| Test

Position

B

| Test

Position

C

| Test

Position

E

Phone

port 1

| 1%| 0.145| 0.211| 0.209| 0.187| 0.190| 0.268| 0.815| 1.63
50%| 0.145| 0.201| 0.190| 0.172| 0.184| 0.259| 0.815| 1.63
99%| 0.145| 0.105| 0.098| 0.087| 0.078| 0.175| 0.815| 1.63
Phone

port 2

| 1%| 0.145| 0.220| 0.202| 0.160| 0.191| 0.301| 0.815| 1.63
50%| 0.145| 0.186| 0.168| 0.149| 0.179| 0.285| 0.815| 1.63
99%| 0.145| 0.084| 0.098| 0.054| 0.097| 0.204| 0.815| 1.63
Phone

port 3

| 1%| 0.145| 0.220| 0.196| 0.154| 0.223| 0.253| 0.815| 1.63
50%| 0.145| 0.194| 0.198| 0.147| 0.213| 0.250| 0.815| 1.63
99%| 0.145| 0.098| 0.072| 0.073| 0.085| 0.210| 0.815| 1.63

H-Field Strength at 20cm from the top surface of the EUT

Test port| Charging

Battery

Level

| Frequency

Range

(MHz)

| Measured E-Field Strength

Values (A/m)

| FCC H-Field

Strength 50%

Limits (A/m)

| FCC H-Field

Strength Limits

(A/m)

---|---|---|---|---|---
Test Position E
Phone

port 1

| 1%| 0.145| 0213| 0.815| 1.63
50%| 0.145| 0.212| 0.815| 1.63
99%| 0.145| 0.128| 0.815| 1.63
Phone

port 2

| 1%| 0.145| 0.248| 0.815| 1.63
50%| 0.145| 0.237| 0.815| 1.63
99%| 0.145| 0.155| 0.815| 1.63
Phone

port 3

| 1%| 0.145| 0211| 0.815| 1.63
50%| 0.145| 0.215| 0.815| 1.63
99%| 0.145| 0.155| 0.815| 1.63

3.6 Simultaneous E-Filed Strength and H-Filed Strength
KDB 447498 points for simultaneous transmission on far-filed measurement, while for below 30 MHz usually measured at near-filed. KDB680106 require aggregate leakage fields at 15 cm surrounding the device from all simultaneous transmitting coils are demonstrated to be less than 50% of the MPE limit; KDB680106 can accept using field strength, power density, SAR measurements or computational modeling etc., the specific authorization requirements will be determined based on the results of the RF exposure evaluation.
Test labs suggest use Computational modelling to calculate Nerve Stimulation BRs; Computational modelling, such as finite-difference time-domain (FDTD) may be used to demonstrate compliance with FCC § 1.1310 limits requirement, Basic Calculations – The following calculations may be used to evaluate systems without consideration for the effects of phase resulting from multiple frequency and/or multiple antennas co-located in the measurement space, which may overestimate the actual result. If the result exceeds the limits, the advanced calculations described,iln follows may be used.

Where:
E-field measurements
Eave = Spatial average
Ewvarus = E-field at
a measurement point
N = Number of spatially averaged points
And

Where:
H-field levels of magnetic field strength
Have = Spatial average
Hwmaxrvs = H-field at a measurement point
N = Number of spatially averaged points
E-Filed Strength at 15 cm from the edges surrounding the EUT and 15 cm above the top surface

Spatial
Average| Chargin

9
Battery

Level

| Frequenc
y Range
(MHz)| Measured E-Field Strength Values (V/m)| FCC E-
Field
Strength
50% Limits
(V/m)| FCC E-
Field
Strength
Limits
(V/m)
---|---|---|---|---|---
Test
Position
A| Test
Position
B| Test
Position
C| Test
Position
D| Test
Position
E
EAVG

Phcnel +Ph

one2

| 1%| 0.145| 2.55| 2.56| 2.04| 2.09| 3.60| 307.0| 614.0
50%| 0.145| 2.30| 2.30| 1.87| 1.91| 3.00| 307.0| 614.0
99%| 0.145| 1.00| 1.04| 0.78| 0.90| 1.24| 307.0| 614.0
EAVG

Phcnel +Ph

one3

| 1%| 0.145| 2.51| 2.63| 2.09| 2.20| 3.49| 307.0| 614.0
50%| 0.145| 2.25| 2.37| 1.87| 1.91| 3.17| 307.0| 614.0
99%| 0.145| 1.02| 1.01| 0.87| 0.92| 1.37| 307.0| 614.0
EAVG

Phone2+Ph
one3

| 1%| 0.145| 2.48| 2.73| 2.00| 2.09| 3.65| 307.0| 614.0
50%| 0.145| 2.20| 2.46| 1.80| 1.85| 3.03| 307.0| 614.0
99%| 0.145| 0.97| 1.07| 0.80| 0.94| 1.30| 307.0| 614.0
EAVG

Phonel +Ph
one2+Phaie

3

| 1%| 0.145| 2.51| 2.64| 2.04| 2.12| 3.58| 307.0| 614.0
50%| 0.145| 2.25| 2.37| 1.84| 1.89| 3.06| 307.0| 614.0
99%| 0.145| 1.00| 1.04| 0.81| 0.92| 1.30| 307.0| 614.0

H-Filed Strength at 15 cm from the edges surrounding the EUT and 15 cm above the top surface

Spatial
Average| Chargin

g
Battery

Level

| Frequenc
y Range (MHz)| Measured H-Field Strength Values (A/m)| FCC H-

Field

Strength

50% Limits

(A/m)

Limits

| FCC H-
Field
Strength(A/m)
---|---|---|---|---|---
Test
Position
A| Test
Position
B| Test
Position
C| Test
Position
D| Test
Position
E
HAVG

Phonel +Ph
one2

| 1%| 0.145| 0.216| 0.206| 0.174| 0.191| 0.285| 0.815| 1.63
50%| 0.145| 0.194| 0.179| 0.161| 0.182| 0.272| 0.815| 1.63
99%| 0.145| 0.095| 0.098| 0.071| 0.088| 0.190| 0.815| 1.63
HAVG

Phonel +Ph
ctie3

| 1%| 0.145| 0.216| 0.203| 0.171| 0.207| 0.261| 0.815| 1.63
50%| 0.145| 0.198| 0.194| 0.160| 0.199| 0.255| 0.815| 1.63
99%| 0.145| 0.102| 0.085| 0.080| 0.082| 0.193| 0.815| 1.63
HAVG

Phone2+Ph
C41 e3

| 1%| 0.145| 0.220| 0.199| 0.157| 0.207| 0.277| 0.815| 1.63
50%| 0.145| 0.190| 0.183| 0.148| 0.196| 0.268| 0.815| 1.63
99%| 0.145| 0.091| 0.085| 0.064| 0.091| 0.207| 0.815| 1.63
HAVG

Phonel +Ph
one2+Phone
3

| 1%| 0.145| 0.217| 0.202| 0.167| 0.201| 0.274| 0.815| 1.63
50%| 0.145| 0.194| 0.185| 0.156| 0.192| 0265| 0.815| 1.63
99%| 0.145| 0.096| 0.089| 0.071| 0.087| 0.196| 0.815| 1.63

H-Field Strength at 20cm from the top surface of the EUT

Charge
Port| Charging
Battery Level| Frequency
Range
(MHz)| Measured H-Field Strength
Values (Alm)| FCC H-Field
Strength 50% imits LWm)| FCC H-Field
Strength Limits
(Aim)
---|---|---|---|---|---
Test Position E
HAVG

Phonel +Pilo

ne2

| 1 %| 0.145| 0.231| 0.815| 1.63
50%| 0.145| 0.225| 0.815| 1.63
99%| 0.145| 0.142| 0.815| 1.63
HAVG

Phonel +Pho

ne3

| 1%| 0.145| 0.212| 0.815| 1.63
50%| 0.145| 0.214| 0.815| 1.63
99%| 0.145| 0.142| 0.815| 1.63
HAVG

Phone2+Pho
ne3

| 1%| 0.145| 0.230| 0.815| 1.63
50%| 0.145| 0.226| 0.815| 1.63
99%| 0.145| 0.155| 0.815| 1.63
HAVG

Phonel +Pho
ne2+Phone3

| 1%| 0.145| 0.224| 0.815| 1.63
50%| 0.145| 0.221| 0.815| 1.63
99%| 0.145| 0.146| 0.815| 1.63

Report No.: GTS20190903009-1-4-2
3.7 Equipment Approval Considerations
The EUT does comply with KDB 680106 D01 as follow table.

frequency range 110KHz-205KHz
Output power from each primary coil is less than 15 watts| Yes| The maximum output power for each primary coil is 10W.
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.

| No| The transfer system includes 3 primary coils.
Client device is placed directly in contact with the transmitter.| Yes| Client device is placed directly in contact with the transmitter.
Mobile  exposure    conditions                only             (portable

exposure conditions are not covered by this exclusion).

| Yes| Mobile exposure conditions only
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.| Yes| The EUT 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.

3.8 Conclusion
The detected emissions with a distance of 15cm surrounding the device and 20 cm above the top surface of the device are below the FCC E-Field Strength & H-Field Strength limits; The detected emissions are below the limitations according FCC KDB 680106 and confirmed by the FCC according to KDB Inquire.

Test Setup Photos of the EUT

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