Test Report

FCC ID: 2AEVM1008900

Test Report

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FCCID_4435492

TEST REPORT Intertek Report No.: 190611074SZN-001

MEASUREMENT/TECHNICAL REPORT

This report concerns (check one) Original Grant X Class II Change

Equipment Type: DCD - Part 15 Low Power Transmitter Below 1705 kHz

Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes No X

If yes, defer until :
date
Company Name agrees to notify the Commission by:
date

of the intended date of announcement of the product so that the grant can be issued on that
date.

Transition Rules Request per 15.37? Yes No X

If no, assumed Part 15, Subpart C for intentional radiator - the new 47 CFR [10-01-18]
Edition] provision.

Report prepared by:
Winkey Wang
Intertek Testing Services Shenzhen Ltd. Longhua Branch
101, 201, Building B, No. 308 Wuhe Avenue, Zhangkengjing
Community, GuanHu Subdistrict, LongHua District, ShenZhen.
Tel: (86 755) 8614 0743 Fax: (86 755) 8601 6751

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TEST REPORT Intertek Report No.: 190611074SZN-001

Table of Contents

1.0 Summary of Test Results ........................................................................................... 4
2.0 General Description .................................................................................................. 5
2.1 Product Description ................................................................................................ 5
2.2 Related Submittal(s) Grants ..................................................................................... 5
2.3 Test Methodology .................................................................................................. 5
2.4 Test Facility ........................................................................................................... 5
3.0 System Test Configuration ......................................................................................... 6
3.1 Justification ........................................................................................................... 6
3.2 EUT Exercising Software .......................................................................................... 6
3.3 Special Accessories ................................................................................................. 6
3.4 Equipment Modification ......................................................................................... 6
3.5 Measurement Uncertainty ...................................................................................... 7
3.6 Support Equipment List and Description .................................................................. 7
4.0 Measurement Results ............................................................................................... 8
4.1 Field Strength Calculation ........................................................................................ 8
4.2 Radiated Emission Configuration Photograph ............................................................ 9
4.3 Radiated Spurious Emission ..................................................................................... 9
4.4 Conducted Emission Configuration Photograph ....................................................... 13
4.5 Conducted Emission ............................................................................................. 13
5.0 Equipment Photographs .......................................................................................... 16
6.0 Product Labelling .................................................................................................... 16
7.0 Technical Specifications ........................................................................................... 16
8.0 Instruction Manual ................................................................................................. 16
9.0 Miscellaneous Information ...................................................................................... 17
9.1 20dB Bandwidth ....................................................................................................... 17
9.2 Emissions Test Procedures..................................................................................... 18
9.2 Emissions Test Procedures (cont'd) ......................................................................... 19
10.0 Test Equipment List ............................................................................................. 20

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TEST REPORT Intertek Report No.: 190611074SZN-001

1.0 Summary of Test Results

Applicant: MerchSource, LLC.
Address: 7755 Irvine Center Drive, Suite 100, Irvine, California, United States

Manufacturer: Same as Applicant

Address: Same as Applicant
Model: 1008900
FCC ID: 2AEVM1008900

TEST ITEM REFERENCE RESULTS
Power Line Conducted Emissions 15.207 Pass
Transmitter Radiated Emissions 15.209 Pass
Pass
Antenna Requirement 15.203
(See Notes)

Notes:
The EUT uses an Integral Antenna which in accordance to Section 15.203 is considered
sufficient to comply with the provisions of this section.

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TEST REPORT Intertek Report No.: 190611074SZN-001

2.0 General Description

2.1 Product Description

The Equipment Under Test (EUT) is a Charging Stand Wireless 10 Watt with WPT function
operating at 110-205 kHz. The EUT is powered by Input 5.3Vdc/2A or 9V/1.7A via USB port
through adapter. For more detailed features description, please refer to the user’s manual.

Antenna Type: Integral Antenna(embedded coil antenna)
Antenna Peak Gain: 0dBi

For electronic filing, the brief circuit description is saved with filename: descri.pdf.

2.2 Related Submittal(s) Grants

This is an application for certification of DCD- Part 15 Low Power Transmitter Below 1705 kHz.

2.3 Test Methodology

Both AC mains line-conducted and radiated emission measurements were performed according
to the procedures in ANSI C63.10 (2013). Radiated emission measurement was performed in
Semi-anechoic chamber and conducted emission measurement was performed in shield
room. For radiated emission measurement, preliminary scans were performed in the semi-
anechoic chamber only to determine the worst-case modes. All radiated tests were
performed at an antenna to EUT distance of 3 meters, unless stated otherwise in the
"Justification Section" of this Application. All other measurements were made in accordance
with the procedures in part 2 of CFR 47.

2.4 Test Facility

The Semi-Anechoic chamber and shield room used to collect the radiated data and conducted
data are Intertek Testing Services Shenzhen Ltd. Longhua Branch and located at 101, 201,
Building B, No. 308 Wuhe Avenue, Zhangkengjing Community, GuanHu Subdistrict, LongHua
District, ShenZhen. This test facility and site measurement data have been fully placed on file
with File Number: CN1188.

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TEST REPORT Intertek Report No.: 190611074SZN-001

3.0 System Test Configuration

3.1 Justification

The system was configured for testing in a typical fashion (as a customer would normally use
it), and in the confines as outlined in ANSI C63.10 (2013). the WPT source device was tested
with one typical WPT client device of models for which it is designed, they are operated such
that the EUT transmits at the maximum output power.

The EUT was powered by AC 120V/60Hz during the test. The test system was pre-scanning
tested based on the consideration of following EUT operation mode. Only the worst-case data
is shown in the report.
Pertest mode Description
Mode 1 Charge with Mobile phone at 1% battery power
Mode 2 Charge with Mobile phone at 50% battery power
Mode 3 Charge with Mobile phone at 99% battery power
Mode 4 Charge with test fixture(10W)
Note: Test fixtures simulate a phone's ability to receive signals and be charged in the set
power

For maximizing emissions below 30 MHz, the EUT was rotated through 360°, the centre of the
loop antenna was placed 1 meter above the ground, and the antenna polarization was
vertically installed. For maximizing emission at and above 30 MHz, the EUT was rotated
through 360°, the antenna height was varied from 1 meter to 4 meters above the ground
plane, and the antenna polarization was changed. This step by step procedure for maximizing
emissions led to the data report in Section 4.0.

The rear of unit shall be flushed with the rear of the table.

The equipment under test (EUT) was configured for testing in a typical fashion (as a customer
would normally use it). The EUT was mounted to a plastic stand if necessary and placed on the
styrene turntable, which enabled the engineer to maximize emissions through its placement in
the three orthogonal axes.

3.2 EUT Exercising Software
N/A

3.3 Special Accessories

There is no special accessories necessary for compliance of this product.

3.4 Equipment Modification

Any modifications installed previous to testing by MerchSource, LLC. will be incorporated in
each production model sold / leased in the United States.

No modifications were installed by Intertek Testing Services Shenzhen Ltd. Longhua Branch.

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TEST REPORT Intertek Report No.: 190611074SZN-001

3.5 Measurement Uncertainty

When determining of the test conclusion, the Measurement Uncertainty of test has been
considered.

3.6 Support Equipment List and Description

This product was tested in the following configuration:

Description Manufacturer Detail
Test fixture
(Provided by applicant) 5W/7.5W/10W/15W
(Provided by Applicant)
USB cable
(Provided by applicant) unshielded, 1.0m
(Provided by Applicant)
Mobile phone
SAMSUNG S7
(Provided by Intertek)
Model: AD07ZM
Adapter Output: Input 100-240V~, 50/60Hz,
xiaomi
(Provided by Applicant) Output 5Vdc/3A, 9Vdc/2A,
12Vdc/1.5A

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TEST REPORT Intertek Report No.: 190611074SZN-001

4.0 Measurement Results

4.1 Field Strength Calculation

The field strength is calculated by adding the reading on the Spectrum Analyzer to the
factors associated with preamplifiers (if any), antennas, cables, pulse desensitization and
average factors (when specified limit is in average and measurements are made with peak
detectors). A sample calculation is included below.

FS = RA + AF + CF − AG + PD + AV

where FS = Field Strength in dBV/m
RA = Receiver Amplitude (including preamplifier) in dBV
CF = Cable Attenuation Factor in dB
AF = Antenna Factor in dB
AG = Amplifier Gain in dB
PD = Pulse Desensitization in dB
AV = Average Factor in −dB

In the radiated emission table which follows, the reading shown on the data table may
reflect the preamplifier gain. An example of the calculations, where the reading does not
reflect the preamplifier gain, follows:

FS = RA + AF + CF − AG + PD + AV

Example

Assume a receiver reading of 62.0dBV is obtained. The antenna factor of 7.4dB and
cable factor of 1.6dB is added. The amplifier gain of 29dB is subtracted. The pulse
desensitization factor of the spectrum analyzer was 0dB, and the resultant average factor
was −10dB. The net field strength for comparison to the appropriate emission limit is
32dBV/m. This value in dBV/m was converted to its corresponding level in V/m.

RA = 62.0dBV
AF = 7.4dB
CF = 1.6dB
AG = 29.0dB
PD = 0dB

AV = −10dB

FS = 62 + 7.4 + 1.6 − 29 + 0 + (−10) = 32dBV/m

Level in V/m = Common Antilogarithm [(32dBV/m)/20] = 39.8V/m

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TEST REPORT Intertek Report No.: 190611074SZN-001

4.2 Radiated Emission Configuration Photograph

For electronic filing, the worst case radiated emission configuration photographs are saved
with filename: test setup photos.pdf.

4.3 Radiated Spurious Emission

Worst Case Radiated Spurious Emission
at
48.244840MHz

Judgement: Passed by 1.4dB margin

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TEST REPORT Intertek Report No.: 190611074SZN-001

Applicant: MerchSource, LLC.
Date of Test: 22 August 2019 Model: 1008900
Worst Case Operating Mode: Charge with test fixture(10W)

Fundamental & Spurious Emission Below 30MHz

Pre- Corr.
Reading Net Distance Calulated Limit Margin
Frequency Amp Factor
Polarization (dBµV) at 3m Factor at 300m at 300m (dB)
(MHz) Gain (dB)
(dBµV/m) (-dB) (dBµV/m) (dBµV/m)
(dB)

Vertical 0.137 88.0 0.0 7.1 95.1 80 15.1 24.9 -9.8
Vertical 0.274 65.4 0.0 6.5 71.9 80 -8.1 18.8 -26.9

Pre- Corr.
Reading Net Distance Calulated Limit Margin
Frequency Amp Factor
Polarization (dBµV) at 3m Factor at 30m at 30m (dB)
(MHz) Gain (dB)
(dBµV/m) (-dB) (dBµV/m) (dBµV/m)
(dB)

Vertical 0.685 57.3 0.0 6.1 63.4 40 23.4 30.9 -7.5

Notes:
1. The specified limits of frequency band 9~90 KHz, 110~490 KHz are in average and measurements
are made with peak detectors. Quasi-Peak detector is used for other frequency band.

2. All measurements were made at 3 meters. Harmonic emissions not detected at the 3-meter
distance were measured at 0.3-meter and an inverse proportional extrapolation was performed to
compare the signal level to the 3-meter limit. No other harmonic emissions than those reported
were detected at a test distance of 0.3-meter.

3. Negative value in the margin column shows emission below limit.

4. Loop antenna is used for the emission under 30MHz.

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TEST REPORT Intertek Report No.: 190611074SZN-001

4.4 Conducted Emission Configuration Photograph

For electronic filing, the worst case radiated emission configuration photographs are saved
with filename: test setup photos.pdf.

4.5 Conducted Emission

Worst Case Conducted Configuration
at
0.414000MHz

Judgement: Passed by 0.8dB margin

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TEST REPORT Intertek Report No.: 190611074SZN-001

5.0 Equipment Photographs

For electronic filing, the photographs are saved with filename: external photos.pdf & internal
photos.pdf.

6.0 Product Labeling

For electronic filing, the FCC ID label artwork and location is saved with filename: label.pdf.

7.0 Technical Specifications

For electronic filing, the block diagram and circuit diagram are saved with filename: block.pdf
and circuit.pdf respectively.

8.0 Instruction Manual

For electronic filing, a preliminary copy of the Instruction Manual is saved with filename:
manual.pdf.

This manual will be provided to the end-user with each unit sold/leased in the United States.

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TEST REPORT Intertek Report No.: 190611074SZN-001

9.2 Emissions Test Procedures (cont'd)

The EUT is warmed up for 15 minutes prior to the test.

AC power to the unit is varied from 85% to 115% nominal and variation in the fundamental
emission field strength is recorded. If battery powered, a new, fully charged battery is
used.

Conducted measurements are made as described in ANSI C63.10 - 2013.

The IF bandwidth used for measurement of radiated signal strength was 10 kHz for emission
below 30 MHz and 120 kHz for emission from 30 MHz to 1000 MHz. Where pulsed
transmissions of short enough pulse duration warrant, a greater bandwidth is selected
according to the recommendations of Hewlett Packard Application Note 150-2. A discussion
of whether pulse desensitivity is applicable to this unit is included in this report.

Transmitter measurements are normally conducted at a measurement distance of three
meters. However, to assure low enough noise floor in the restricted bands, signals are
acquired at a distance of one meter or less. All measurements are extrapolated to three
meters using inverse scaling, but those measurements taken at a closer distance are so
marked.

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Document Created: 2019-09-03 19:52:15
Document Modified: 2019-09-03 19:52:15

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