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Test report

DUO AMERICA, LLC L651SP 2AZP5-L651SP 2AZP5L651SP l651sp

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TEST REPORT
For FCC Part15B

Report No. .......................................: CHTEW22040115

Report verification:

Project No. ..................................: SHT2202043705EW

FCC ID............................................. : 2AZP5-L651SP

Applicant's name ........................... : DUO AMERICA, LLC

Address.............................................: 8925 NW 26TH ST, DORAL, MIAMI, Florida, United States

Product Name ................................ : Smart Phone

Trade Mark .......................................: HYUNDAI

Model No. .........................................: L651

Listed Model(s) .................................: Standard ......................................... :

47 CFR FCC Part 15 Subpart B

Date of receipt of test sample...........: Mar. 11, 2022

Date of testing..............................: Mar. 12, 2022- Apr. 18, 2022

Date of issue.................................: Apr. 19, 2022

Result .................. ........................: Pass

Compiled by ( position+printed name+signature)..: Supervised by ( position+printed name+signature)..: Approved by ( position+printed name+signature)..:

File administrators Silvia Li Project Engineer Aaron Fang RF Manager Hans Hu

Testing Laboratory Name ............. : Shenzhen Huatongwei International Inspection Co., Ltd.
Address.............................................: 1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China
Shenzhen Huatongwei International Inspection Co., Ltd. All rights reserved.
This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Huatongwei International Inspection Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Huatongwei International Inspection Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context.
The test report merely corresponds to the test sample.

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Report No.: CHTEW22040115

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Contents

1.

TEST STANDARDS AND REPORT VERSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1. Test Standards

3

1.2. Report version information

3

2.

TEST DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.

SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1. Client Information

5

3.2. Product Description

5

3.3. Testing Laboratory Information

5

4.

TEST CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.1. Descriptions of test mode

6

4.2. Configuration of Tested System

6

4.3. Environmental conditions

6

4.4. Statement of the measurement uncertainty

7

4.5. Equipments Used during the Test

8

5.

TEST CONDITIONS AND RESULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.1. Conducted Emissions Test

9

5.2. Radiated Emissions Test

12

6.

TEST SETUP PHOTOS OF THE EUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6

7.

EXTERNAL AND INTERNAL PHOTOS OF THE EUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7

Shenzhen Huatongwei International Inspection Co., Ltd.

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1. TEST STANDARDS AND REPORT VERSION
1.1. Test Standards
The tests were performed according to following standards: 47 CFR FCC Part 15 Subpart B - Unintentional Radiators ANSI C63.4: 2014 ­ American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40GHz

1.2. Report version information

Revision No.

Date of issue

N/A

2022-04-19

Description Original

Shenzhen Huatongwei International Inspection Co., Ltd.

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2. TEST DESCRIPTION

Section

Test Item

5.1 Conducted Emissions

5.2 Radiated Emissions

Section in CFR 47 15.107(a) 15.109(a)

Note: #1: The test result does not include measurement uncertainty value

Result #1 PASS PASS

Test Engineer Pan Xie Pan Xie

Shenzhen Huatongwei International Inspection Co., Ltd.

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3. SUMMARY
3.1. Client Information
Applicant: Address: Manufacturer:
Address:
3.2. Product Description
Main unit information: Product Name: Trade Mark: Model No.: Listed Model(s): Power supply: Hardware version: Software version: Accessory unit information: Battery information:
Adapter information:

DUO AMERICA, LLC 8925 NW 26TH ST, DORAL, MIAMI, Florida, United States Sprocomm Technologies Co., Limited RM 14, 29/F HO KING COMMERCIAL CENTRE, 2-16 FA YUEN STREET, MONGKOK, KOWLOON HK
Smart Phone HYUNDAI L651 DC 3.85V from Battery V1.0 V1.0
DC 3.85V, 5000mAh Model:AS5020A Input: AC100-240V, 50/60Hz, 350mA Output: 5.0Vdc,2.0A

3.3. Testing Laboratory Information

Laboratory Name Laboratory Location Connect information:
Qualifications

Shenzhen Huatongwei International Inspection Co., Ltd.

1/F, Bldg 3, Hongfa Hi-tech Industrial Park, Genyu Road, Tianliao, Gongming, Shenzhen, China

Tel: 86-755-26715499

E-mail: cs@szhtw.com.cn

http://www.szhtw.com.cn

Type

Accreditation Number

FCC

762235

Shenzhen Huatongwei International Inspection Co., Ltd.

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4. TEST CONFIGURATION

4.1. Descriptions of test mode

Test mode Camera recording mode Video Playing mode Data exchange mode

Description Keep the EUT in Camera recording status Keep the EUT in Video Playing status Keep the EUT in Data exchange with PC status

Pre-scan above all test mode, found below test mode which it was worse case mode, so only show the test data for worse case mode on the test report

Test Item

Test mode for worse case

Conducted Emissions

Camera recording mode

Radiated Emissions

Camera recording mode

4.2. Configuration of Tested System

Test mode

Configuration

Data exchange mode

Other modes

4.3. Environmental conditions

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

Temperature:

15~35°C

Relative Humidity:

30~60 %

Air Pressure:

950~1050mba

Shenzhen Huatongwei International Inspection Co., Ltd.

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4.4. Statement of the measurement uncertainty

Test Items

MeasurementUncertainty

Conducted emission

3.25dB

Radiated emission

<1GHz: 4.22dB >1GHz:5.06ppm

This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=1.96.

Shenzhen Huatongwei International Inspection Co., Ltd.

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4.5. Equipments Used during the Test

 Conducted Emission

Used Test Equipment

Manufacturer

Equipment No. Model No.

Serial No.

 Shielded Room Albatross projects



EMI Test Receiver

R&S

 Artificial Mains SCHWARZBECK

HTWE0114 HTWE0111 HTWE0113

N/A ESCI NNLK 8121

N/A 101247
573

 Pulse Limiter

R&S

HTWE0033

ESH3-Z2

100499



RF Connection Cable

HUBER+SUHNER

HTWE0113-02

ENVIROFLE X_142

EF-NMBNCM-2M

 Test Software

R&S

N/A

ES-K1

N/A

Last Cal. Date (YY-MM-DD) 2018/09/28 2021/09/14 2021/09/17 2021/09/16 2021/09/17
N/A

Next Cal. Date (YY-MM-DD) 2023/09/27 2022/09/13 2022/09/16 2022/09/15 2022/09/16
N/A

 Radiated Emission-6th test site

Used Test Equipment Manufacturer Equipment No.

Model No.



Semi-Anechoic Chamber

Albatross projects

HTWE0127



EMI Test Receiver

R&S

HTWE0099



Ultra-Broadband SCHWARZBEC

Antenna

K

HTWE0119

 Pre-Amplifer

SCHWARZBEC K

HTWE0295



RF Connection Cable

HUBER+SUHN ER

HTWE0062-01

SAC-3m-02 ESCI
VULB9163 BBV 9742
N/A



RF Connection Cable

HUBER+SUHN ER

HTWE0062-02

SUCOFLEX10 4

 Test Software

R&S

N/A

ES-K1

Serial No. C11121 100900
546 N/A N/A 501184/4 N/A

Last Cal. Date (YY-MM-DD)
2018/09/30

Next Cal. Date (YY-MM-DD)
2022/09/29

2021/09/14

2022/09/13

2020/04/28

2023/04/27

2021/11/05

2022/11/04

2022/02/25

2023/02/24

2022/02/25 N/A

2023/02/24 N/A

 Radiated emission-7th test site

Used Test Equipment Manufacturer



Semi-Anechoic Chamber

Albatross projects



Spectrum Analyzer

R&S

 Horn Antenna

SCHWARZBE CK



Broadband Pre- SCHWARZBE

amplifier

CK



RF Connection HUBER+SUH

Cable

NER

 Test Software

Audix

Equipment No.
HTWE0122 HTWE0098 HTWE0126 HTWE0201 HTWE0121-01
N/A

Model No.
SAC-3m-01 FSP40 9120D
BBV 9718 RE-7-FH
E3

Serial No.
N/A 100597
1011 9718-248
N/A N/A

Last Cal. Date (YY-MM-DD) 2018/09/27
2021/09/13 2020/04/01 2022/02/28 2022/03/04
N/A

Next Cal. Date (YY-MM-DD) 2022/09/26
2022/09/12 2023/03/31 2023/02/27 2023/03/03
N/A

Shenzhen Huatongwei International Inspection Co., Ltd.

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5. TEST CONDITIONS AND RESULTS

5.1. Conducted Emissions Test

LIMIT

FCC CFR Title 47 Part 15 Subpart B Section 15.107:

Frequency range (MHz)
0.15-0.5 0.5-5 5-30
* Decreases with the logarithm of the frequency.

Quasi-peak 66 to 56* 56 60

Limit (dBuV)

TEST CONFIGURATION

Average 56 to 46*
46 50

TEST PROCEDURE
1. The EUT was setup according to ANSI C63.4:2014 2. The EUT was placed on a plat form of nominal size, 1 m by 1.5 m, raised 80 cm above the conducting
ground plane. The vertical conducting plane was located 40 cm to the rear of the EUT. All other surfaces of EUT were at least 80 cm from any other grounded conducting surface. 3. The EUT and simulators are connected to the main power through a line impedance stabilization network (LISN). The LISN provides a 50ohm / 50uH coupling impedance for the measuring equipment. 4. The peripheral devices are also connected to the main power through a LISN. (Please refer to the block diagram of the test setup and photographs) 5. Each current-carrying conductor of the EUT power cord, except the ground (safety) conductor,was individually connected through a LISN to the input power source. 6. The excess length of the power cord between the EUT and the LISN receptacle were folded back and forth at the center of the lead to form a bundle not exceeding 40 cm in length. 7. Conducted emissions were investigated over the frequency range from 0.15MHz to 30MHz using a receiver bandwidth of 9 kHz. 8. During the above scans, the emissions were maximized by cable manipulation.

TEST MODE: Please refer to the clause 3.3

TEST RESULTS

Passed

Not Applicable

Shenzhen Huatongwei International Inspection Co., Ltd.

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Test Line:

L

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Shenzhen Huatongwei International Inspection Co., Ltd.

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Test Line:

N

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Shenzhen Huatongwei International Inspection Co., Ltd.

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5.2. Radiated Emissions Test
LIMIT

FCC CFR Title 47 Part 15 Subpart B Section 15.109

Frequency

Limit (dBuV/m @3m)

30MHz-88MHz

40.00

88MHz-216MHz

43.50

216MHz-960MHz

46.00

960MHz-1GHz

54.00

Above 1GHz

54.00 74.00

TEST CONFIGURATION

 30MHz ~ 1GHz

Value Quasi-peak Quasi-peak Quasi-peak Quasi-peak
Average Peak

 Above 1GHz

TEST PROCEDURE
1. The EUT was tested according to ANSI C63.4:2014. 2. The EUT is placed on a turn table which is 0.8 meter above ground. 3. The turn table is rotated 360 degrees to determine the position of the maximum emission level. 4. The EUT waspositioned such that the distance from antenna to the EUT was 3 meters. 5. The antenna is scanned from 1 meter to 4 meters to find out the maximum emission level. Thisis
repeated for both horizontal and vertical polarization of the antenna. 6. Use the following spectrum analyzer settings
(1) Span shall wide enough to fully capture the emission being measured; (2) Below 1GHz,
RBW=120KHz, VBW=300KHz, Sweep=auto, Detector function=peak, Trace=max hold; If the emission level of the EUT measured by the peak detectoris 3 dB lower than the applicable limit, the peak emission level will be reported. Otherwise, theemission measurement will be repeated using the quasi-peak detector and reported. (3) From 1GHz to 5th harmonic, RBW=1MHz, VBW=3MHz

Shenzhen Huatongwei International Inspection Co., Ltd.

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TEST MODE: Please refer to the clause 3.3

TEST RESULTS

Passed

Not Applicable

Note: Final Level =Receiver Read level + Antenna Factor + Cable Loss ­ Preamplifier Factor The emission levels of frequency above 6GHz are very lower than limit and not show in test report.

Shenzhen Huatongwei International Inspection Co., Ltd.

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Polarization:

Horizontal

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Shenzhen Huatongwei International Inspection Co., Ltd.

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Polarization:

Vertical

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Shenzhen Huatongwei International Inspection Co., Ltd.

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6. TEST SETUP PHOTOS OF THE EUT
Conducted Emissions (AC Mains)

Date of issue: 2022-04-19

Radiated Emissions (30MHz-1GHz)

Radiated Emissions (Above 1GHz)

Shenzhen Huatongwei International Inspection Co., Ltd.

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7. EXTERNAL AND INTERNAL PHOTOS OF THE EUT
Refer to the test report No.: CHTEW22040109

--------End of Report--------

Shenzhen Huatongwei International Inspection Co., Ltd.

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