FCC ID: 2AUYFRMA2010 realme Buds Q2

 

80g哑粉 单黑 双面印刷/风琴折/规格：92*80mm

realme Buds Q2

User Guide

1

Enter pairing mode

Bluetooth

Available equipment

realme Buds Q2

2

Connect earbuds

Open up the charging case and keep both earbuds in the

case, and press button on both earbuds for more than 5s.

Turn on Bluetooth on smartphone, search and connect

to "realme Buds Q2"

Touch operation

Single click: Answer calls

Double click: Play/Pause; Hang up

Triple click: Next song

Press and hold both earbuds for 2s:

Enter/Exit game mode

Connection

Use with realme Link

Users can download realme Link to install additional features for

realme Buds Q2

Search realme Link in APP Store, or scan the following QR code to

download

realme Buds Q2

Game mode

Buttons of right earbud

Double click

Pause/Play >

Triple click

Next song >

Long press

Buttons of left earbud

Double click

Pause/Play >

Triple click

Next song >

Long press

Basic Parameters

Product name

Product model

Bluetooth version

Bluetooth protocol

Bluetooth code

Charging interface

Endurance (music)

realme Buds Q2

DA2002

Bluetooth 5.0

HFP/A2DP/AVRCP

SBC，AAC

Micro-USB

About 5h (earbuds)

About 20h (use with charging case)

Charging time

About 2h

Bluetooth communication distance

≤10m

Working frequency

2.4GHz~2.4835 GHz

Max power rate

≤8dBm

Packing List

1、realme Buds Q2 *1

2、Ear tips *6 (two of them have been mounted)

3、User Guide *1

Realme Chongqing Mobile Telecommunications Corp., Ltd.

No.178 Yulong Avenue, Yufengshan, Yubei District, Chongqing, China

0303002775

REV.1.0

Battery warning

)

EU Declaration of Conformity DOC )

The built-in lithium battery of the product is forbidden to be disassembled, impacted, extruded or

Hereby, realme, declares that this device is in compliance with the essential requirements and other

put into fire. The battery under the very low air pressure may result in explosion or flammable liquid

relevant provisions of Radio Equipment Directive 2014/53/EU. The declaration of conformity may be

or gas leakage. Avoid the battery in a high-temperature environment or being exposed to strong

consulted at http://www.realme.com/global/support/eu-declaration.

sunlight to avert explosion. Don't use the battery continuously in case of serious ballooning. The

battery shall be handled pursuant to the local regulations and shall not be disposed as household

RF exposure information: The EIRP power of the device at maximal case is below the exempt

garbage. Don't try to repair, remove or refit the battery. The explosion may happen if the battery is

condition, 20mW specified in EN 50663:2017. RF exposure assessment has been performed to prove

replaced by the one subject to incorrect model. Don't compress or puncture the battery with hard

that this unit will not generate the harmful EM emission above the reference level as specified in EC

object. The battery leakage, overheating or outbreak of a fire may occur if the battery is

Council Recommendation (1999/519/EC).

destroyed.

Operation temperature: 0~45℃

Operation frequency (Max power) ：Bluetooth: 2402-2480MHz

Max. RF power transmitted: 8.41dBm for left ear, 7.50dBm for right ear

input: DC5.0V, 0.5A

This symbol means that aocorcing to looal laws and regulations your product and/or its

battery shall be disposed of separately from household waste. When this product reaches

its end of life, user has the choice to give his product to a competent recycling

organization. Proper recycling of your product will protect human health and the

environmerrt.

FCC

FCC Compliance Statement

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against

harmful interference in a residential installation. This equipment generates uses and can radiate radio

frequency energy and, if not installed and used in accordance with the instructions, may cause harmful

interference to radio communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to radio or television , which can be

determined by

turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of

the following measures.

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on circuit different from that to which the receiver is connected.

- Consult the dealer or on experienced radio/TV technician for help.

- This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna

or transmitter.

FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.

The SAR limit adopted by the USA is 1.6 W/kg averaged over one gram of tissue The

highest SAR value reported to the FCC tor this device type complies with this limit.

The highest SAR value reported to the FCC for this device type when using it at the head

FCC Compliance Statement

This device complies with part 15 of the FCC Rules. Operation is subject to the following two

conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any

interference received, including interference that may cause undesired operation.

CAUTION: The grantee is not responsible for any changes or modifications not expressly approve

by the party responsible for compliance. Such modifications could void the user's authority to

operate the equipment.

FCC ID : 2AUYFRMA2010

Warranty

Warranty Card (Stub Copy)

Warranty Card (Customer Copy)

Thank you for purchasing realme products. If any manufacturing defect problems occur within 12

months from the date of purchase, user can enjoy our company's warranty service.

Dear user, thank you for using the product of our company. Please read and keep properly the

warranty card after purchasing the product so that we can provide better services to you.

Dear user, thank you for using the product of our company. Please read and keep properly the

warranty card after purchasing the product so that we can provide better services to you.

Matters Needing Attention:

1. When you buy the product, the sales unit will issue a valid proof of purchase.

2. The warranty card and the proof of purchase should be kept by the user

properly, and it will not be replaced if lost.

3. If the product fails due to non-human factors, the user can present the warranty card and

proof of purchase to the realme customer service center for free maintenance during the

warranty period.

Non-warranty situation:

This warranty does not cover the following cases:

1. Out of warranty period.

2. Damage caused by use not in accordance with the instructions.

3. Damage caused by man-made causes.

4. Failure caused by unauthorized disassembly, maintenance, or modification of the product.

5. Damage caused by force majeure factors (such as floods, earthquakes, lightning, etc.).

6. There is no warranty card, invoice, or warranty card that does not match the invoice information.

7. The product wears naturally.

8. Other failures and damages that are not caused by the quality of the product itself.

Website: www.realme.com

User Information

User's name

Phone Number

Address

Email

Product Information

Product Model

Product Serial Number

Sales Information

Purchase Date

Invoice Number

Sales Unit

Phone Number

Address

User Information

User's name

Phone Number

Address

Email

Product Information

Product Model

Product Serial Number

Sales Information

Purchase Date

Invoice Number

Sales Unit

Phone Number

Address



 

 

 

 

 

 

 

 

 

 

V1

V2

第 一 次 发 行

取 消N E O

1 2 / 2 9

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FCC ID : 2AUYFRMA2010



 

 

C5266091_X8_Ed.1 Letter of Authorization Realme Chongqing Mobile Telecommunications Corp., Ltd. No. 178 Yulong Avenue, Yufengshan, Yubei District,Chongqing,China Company: Realme Chongqing Mobile Telecommunications Corp., Ltd. Address:

No. 178 Yulong Avenue, Yufengshan, Yubei District,Chongqing,China Product Name: realme Buds Q2 Model Number: RMA2010 FCC Identifier: 2AUYFRMA2010 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. is allowed to forward all Name: LiangPing Yang Date: 2020.12.18 Title: Manager Signature of applicant:

1/1

 

 

TEST REPORT

Verified Code:

061325

E202012093384-3-G1

Application No.:

E202012093384

Realme Chongqing Mobile Telecommunications Corp., Ltd.

No.178 Yulong Avenue, Yufengshan, Yubei District, Chongqing，China.

realme Buds Q2

Report No.:

Client:

Address:

Sample

Description:

Model:

RMA2010

Test Specification:

IEEE Std. 1528:2013

47 CFR FCC Part 2.1093:2013

IEEE Std. C95.1:2019

Receipt Date:

2020-12-11

Test Date:

2021-01-12 to 2021-01-12

Issue Date:

2021-01-22

Test Result:

Pass

Prepared By:

Test Engineer

Reviewed By:

Technical Manager

Approved By:

Manager

Other Aspects:

Note: This report instead the report E202012093384-3, and from the date of issuance of this report,

the report which being replaced become invalid.

Abbreviations: ok / P = passed; fail / F = failed; n.a. / N = not applicable;

The test result in this test report refers exclusively to the presented test sample. This report shall not be reproduced except in full, without the written

approval of GRGT.

Guangzhou GRG Metrology & Test Co., Ltd.

Address:No.163 Pingyun Road, West of Huangpu Avenue, Guangzhou GuangdongChina

Tel:+86-20-38699960

Fax:+86-20-38695185

Email: emckf@grgtest.com

http://www.grgtest.com

Report No.: E202012093384-3-G1 Application No.: E202012093384

DIRECTIONS OF TEST

1. This station carries out test task according to the national regulation of

verifications which can be traced to National Primary Standards and

BIPM.

laboratory.

2. 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

3. If there is any objection concerning the test, the client should inform the

laboratory within 15 days from the date of receiving the test report.

Page 1 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

TABLE OF CONTENTS

1.

2.

GENERAL INFORMATION ...................................................................................................................... 3

GENERAL INFORMATION OF EUT .......................................................................................................... 4

STATEMENT OF COMPLIANCE ......................................................................................................................... 4

GENERAL DESCRIPTION .................................................................................................................................... 5

LABORATORY ENVIRONMENT ........................................................................................................................ 6

3.

LABORATORY AND ACCREDITATIONS .................................................................................................... 7

LABORATORY ...................................................................................................................................................... 7

ACCREDITATIONS ............................................................................................................................................... 7

MEASUREMENT UNCERTAINTY ...................................................................................................................... 7

4.

SAR MEASUREMENTS SYSTEM .............................................................................................................. 8

DEFINITION OF SPECIFIC ABSORPTION RATE (SAR) .................................................................................. 8

SAR SYSTEM ......................................................................................................................................................... 9

E-FIELD PROBE .................................................................................................................................................. 10

DATA ACQUISITION ELECTRONICS (DAE) .................................................................................................. 11

ROBOT.................................................................................................................................................................. 12

MEASUREMENT SERVER ................................................................................................................................. 13

PHANTOM ........................................................................................................................................................... 14

DEVICE HOLDER ............................................................................................................................................... 15

DATA STORAGE AND EVALUATION ............................................................................................................. 16

TEST EQUIPMENT LIST ......................................................................................................................... 18

SYSTEM VERIFICATION PROCEDURE ..................................................................................................... 19

TISSUE VERIFICATION ..................................................................................................................................... 19

SYSTEM CHECK PROCEDURE ........................................................................................................................ 20

7.

SAR MEASUREMENT VARIABILITY AND UNCERTAINTY ......................................................................... 22

SAR MEASUREMENT VARIABILITY .............................................................................................................. 22

MEASUREMENT UNCERTAINTY .................................................................................................................... 22

EUT TESTING POSITION ........................................................................................................................ 23

8.1

BODY WORN POSITION .................................................................................................................................... 23

MEASUREMENT PROCEDURES ............................................................................................................. 24

SPATIAL PEAK SAR EVALUATION ................................................................................................................ 24

POWER REFERENCE MEASUREMENT .......................................................................................................... 24

AREA SCAN PROCEDURES .............................................................................................................................. 24

ZOOM SCAN PROCEDURES ............................................................................................................................. 26

VOLUME SCAN PROCEDURES ........................................................................................................................ 27

POWER DRIFT MONITORING .......................................................................................................................... 27

CONDUCTED POWER ........................................................................................................................... 28

SAR TEST RESULTS SUMMARY .............................................................................................................. 30

SIMULTANEOUS TRANSMISSION ANALYSIS .......................................................................................... 31

APPENDIX A. SYSTEM CHECKING SCANS ............................................................................................................ 32

APPENDIX B. MEASUREMENT SCANS ................................................................................................................. 33

APPENDIX C. RELEVANT PAGES FROM PROBE CALIBRATION REPORT(S) ............................................................. 37

APPENDIX D: PHOTOGRAPH OF SET UP ............................................................................................................. 56

2.1

2.2

2.3

3.1

3.2

3.3

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

6.1

6.2

7.1

7.2

9.1

9.2

9.3

9.4

9.5

9.6

5.

6.

8.

9.

10.

11.

12.

Page 2 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

1. GENERAL INFORMATION

Equipment

realme Buds Q2

Brand Name

realme

Model Name

RMA2010

Model difference(s) /

Sample No.:

0006,0007

Address

Factory

Address

Standard(s)

/

/

Manufacturer

Realme Chongqing Mobile Telecommunications Corp., Ltd

No.178 Yulong Avenue, Yufengshan, Yubei District, Chongqing，China.

IEEE Std 1528-2013 Recommended Practice for Determining the Peak

Spatial-Average Specific Absorption Rate (SAR) in the Human Head from

Wireless Communications Devices: Measurement Techniques

47 CFR FCC Part 2.1093:2013 Radio frequency radiation exposure evaluation:

portable devices

ANSI Std C95.1-2019 Safety Levels with Respect to Human Exposure to Radio

Frequency Electromagnetic Fields, 3 kHz - 300 GHz.

KDB447498 D01 v06 General RF Exposure Guidance

KDB865664 D01 v01r04 SAR measurement 100 MHz to 6 GHz

KDB865664 D02 v01r02 RF Exposure Reporting

Page 3 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

2. GENERAL INFORMATION OF EUT

2.1 STATEMENT OF COMPLIANCE

Frequency Band

Highest Reported 1g-SAR(W/Kg)

Bluetooth

Test Result

Left Ear

Right Ear

0.07056

0.04884

PASS

SAR Test Limit

(W/Kg)

1.6

Note：

This device is in compliance with Specific Absorption Rate (SAR) for general population/uncontrolled

exposure limits (1.6 W/kg) specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEE C95.1-2019, and had

been tested in accordance with the measurement methods and procedures specified in IEEE 1528-2013 and

IEC 62209-2:2019.

Page 4 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

2.2 GENERAL DESCRIPTION

realme Buds Q2

realme

RMA2010

Portable device

V4

V1.1.09

Band

Bluetooth

Class B

Equipment

Brand Name

Model Name

Series Model

Model Difference

Device Type

HW Version

SW Version

Frequency Range

Device class

Type of

Modulation:

Antenna Specification:

Test Channels

(low-mid-high):

Operating Mode:

Power Supply:

Earphone Battery

Specification:

Charging Case

Battery Specification:

Sample submitting way:

Note:

/

/

/

TX (MHz)

RX (MHz)

2402-2480

FHSS (GFSK for 1Mbps, /4-DQPSK for 2Mbps,8DPSK for 3Mbps )

Left earphone: Intenna antenna -3.12dBi

Right earphone: Intenna antenna -4.07dBi

0-39-78 (BT)

Maximum continuous output

Other Information

DC5V power supplied by charging case

DC 3.7V power supplied by the earphone battery or charging case battery

ZWD541112

3.7V, 40mAh, 0.15Wh

ZWD802028

3.7V, 400mAh, 1.48Wh

■Provided by customer □Sampling

Page 5 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

2.3 LABORATORY ENVIRONMENT

Temperature

Relative humidity

Min. = 18ºC, Max. = 25ºC

Min. = 30%, Max. = 70%

Ground system resistance

Ambient noise is checked and found very low and in compliance with requirement of standards. Reflection of

surrounding objects is minimized and in compliance with requirement of standards.

< 0.5Ω

Page 6 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

3. LABORATORY AND ACCREDITATIONS

3.1 LABORATORY

The tests & measurements refer to this report were performed by Shenzhen EMC Laboratory of

Guangzhou GRG Metrology & Test Co,. Ltd.

No.1301 Guanguang Road Xinlan Community, Guanlan Street, Longhua District

Shenzhen, 518110, People’s Republic of China.

518000

Add.:

P.C.:

Tel :

Fax:

0755-61180008

0755-61180008

3.2 ACCREDITATIONS

Our laboratories are accredited and approved by the following approval agencies according to GB/T

27025(ISO/IEC 17025:2017)

The measuring facility of laboratories has been authorized or registered by the following approval agencies.

USA

Canada

USA

A2LA(Certificate #:2861.01)

Industry Canada

FCC

Copies of granted accreditation certificates are available for downloading from our web site,

http://www.grgtest.com

3.3 MEASUREMENT UNCERTAINTY

Per KDB865664 D01 SAR Measurement 100 MHz to 6 GHz, when the highest measured 1-g SAR

within a frequency band is < 1.5 W/kg, the extensive SAR measurement uncertainty analysis described in

IEEE Std 1528-2013 is not required in SAR reports submitted for equipment approval. The equivalent ratio

(1.5/1.6) is applied to extremity and occupational exposure conditions.

Page 7 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

4. SAR MEASUREMENTS SYSTEM

4.1 DEFINITION OF SPECIFIC ABSORPTION RATE (SAR)

SAR is related to the rate at which energy is absorbed per unit mass in an object exposed to a radio field. The

SAR distribution in a biological body is complicated and is usually carried out by experimental techniques or

numerical modeling. The standard recommends limits for two tiers of groups, occupational/controlled and

general population/uncontrolled, based on a person’s awareness and ability to exercise control over his or her

exposure. In general, occupational/controlled exposure limits are higher than the limits for general

population/uncontrolled.

The SAR definition is the time derivative (rate) of the incremental energy (dW) absorbed by (dissipated in) an

incremental mass (dm) contained in a volume element (dv) of a given density (ρ). The equation description is

as below:

SAR is expressed in units of Watts per kilogram (W/kg) SAR measurement can be related to the electrical

field in the tissue by

Where: ζ is the conductivity of the tissue;

ρ is the mass density of the tissue and E is the RMS electrical field strength.

Page 8 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

4.2 SAR SYSTEM

DASY System Configurations

The DASY system for performance compliance tests is illustrated above graphically. This system consists

of the following items:

 A standard high precision 6-axis robot with controller, a teach pendant and software

 A data acquisition electronic (DAE) attached to the robot arm extension

 A dosimetric probe equipped with an optical surface detector system

 The electro-optical converter (EOC) performs the conversion between optical and electrical signals

 A measurement server performs the time critical tasks such as signal filtering, control of the robot

operation and fast movement interrupts.

 A probe alignment unit which improves the accuracy of the probe positioning

 A computer operating Windows XP

 DASY software

 Remove control with teach pendant and additional circuitry for robot safety such as warming lamps,

etc.

 The SAM twin phantom

 A device holder

 Tissue simulating liquid

 Dipole for evaluating the proper functioning of the system

Components are described in details in the following sub-sections.

Page 9 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

4.3 E-FIELD PROBE

The SAR measurement is conducted with the dosimetric probe (manufactured by SPEAG).The probe

is specially designed and calibrated for use in liquid with high permittivity. The dosimetric probe has

special calibration in liquid at different frequency. This probe has a built in optical surface detection

system to prevent from collision with phantom.

 E-Field Probe Specification

<EX3DV4 Probe>

Construction

Frequency

Directivity

Dynamic Range

Dimensions

Symmetrical design with triangular core

Built-in shielding against static charges

PEEK enclosure material (resistant to

organic solvents, e.g., DGBE)

10 MHz to 6 GHz; Linearity: ± 0.2 dB

± 0.3 dB in HSL (rotation around probe

axis)

± 0.5 dB in tissue material (rotation

normal to probe axis)

10 µW/g to 100 mW/g; Linearity: ± 0.2 dB

(noise: typically < 1 µW/g)

Overall length: 330 mm (Tip: 20 mm)

Tip diameter: 2.5 mm (Body: 12 mm)

Typical distance from probe tip to dipole

centers: 1 mm

Photo of EX3DV4

 E-Field Probe Calibration

Each probe needs to be calibrated according to a dosimetric assessment procedure with accuracy better

than ± 10%. The spherical isotropy shall be evaluated and within ± 0.25dB. The sensitivity parameters

(NormX, NormY, and NormZ), the diode compression parameter (DCP) and the conversion factor

(ConvF) of the probe are tested. The calibration data can be referred to appendix C of this report.

Page 10 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

4.4 DATA ACQUISITION ELECTRONICS (DAE)

The data acquisition electronics (DAE) consists of a highly sensitive electrometer-grade preamplifier

with auto-zeroing, a channel and gain-switching multiplexer, a fast 16 bit AD-converter and a command

decoder and control logic unit. Transmission to the measurement server is accomplished through an

optical downlink for data and status information as well as an optical uplink for commands and the

clock.

The input impedance of the DAE is 200MOhm; the inputs are symmetrical and floating. Common mode

rejection is above 80dB.

Photo of DAE

Page 11 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

4.5 ROBOT

The SPEAG DASY system uses the high precision robots (DASY5: TX60XL) type from Stäubli SA

(France). For the 6-axis controller system, the robot controller version (DASY5: CS8c) from Stäubli is

used. The Stäubli robot series have many features that are important for our application:

 High precision (repeatability ±0.035 mm)

 High reliability (industrial design)

 Jerk-free straight movements

 Low ELF interference (the closed metallic construction shields against motor control fields)

Photo of DASY5

Page 12 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

4.6 MEASUREMENT SERVER

The measurement server is based on a PC/104 CPU board with CPU (DASY5: 400 MHz, Intel Celeron),

chip disk (DASY5: 128 MB), RAM (DASY5: 128 MB). The necessary circuits for communication with

the DAE electronic box, as well as the 16 bit AD converter system for optical detection and digital I/O

interface are contained on the DASY I/O board, which is directly connected to the PC/104 bus of the CPU

board.

The measurement server performs all the real-time data evaluation for field measurements and surface

detection, controls robot movements and handles safety operations.

Photo of Server for DASY5

Page 13 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

4.7 PHANTOM

<SAM Twin Phantom>

Shell Thickness

Filling Volume

Dimensions

Measurement Areas

2 ± 0.2 mm;

Center ear point: 6 ± 0.2 mm

Approx. 25 liters

Length: 1000 mm; Width: 500 mm;

Height: adjustable feet

Left Hand, Right Hand, Flat Phantom

Photo of SAM Phantom

The bottom plate contains three pair of bolts for locking the device holder. The device holder positions are

adjusted to the standard measurement positions in the three sections. A white cover is provided to tap the

phantom during off-periods to prevent water evaporation and changes in the liquid parameters. On the

phantom top, three reference markers are provided to identify the phantom position with respect to the

robot.

Page 14 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

4.8 DEVICE HOLDER

The SAR in the phantom is approximately inversely proportional to the square of the distance between the

source and the liquid surface. For a source at 5 mm distance, a positioning uncertainty of ±0.5mm would

produce a SAR uncertainty of ± 20%. Accurate device positioning is therefore crucial for accurate and

repeatable measurements. The positions in which the devices must be measured are defined by the

standards.

The DASY device holder is designed to cope with different positions given in the standard. It has two

scales for the device rotation (with respect to the body axis) and the device inclination (with respect to the

line between the ear reference points). The rotation center for both scales is the ear reference point

(ERP).Thus the device needs no repositioning when changing the angles.

The DASY device holder is constructed of low-loss POM material having the following dielectric

parameters: relative permittivity ε = 3 and loss tangent δ = 0.02. The amount of dielectric material has

been reduced in the closest vicinity of the device, since measurements have suggested that the influence of

the clamp on the test results could thus be lowered.

Device Holder

Page 15 of 61

Report No.: E202012093384-3-G1 Application No.: E202012093384

4.9 DATA STORAGE AND EVALUATION

 Data Storage

The DASY software stores the assessed data from the data acquisition electronics as raw data (in

microvolt readings from the probe sensors), together with all the necessary software parameters for

the data evaluation (probe calibration data, liquid parameters and device frequency and modulation

data) in measurement files. The post-processing software evaluates the desired unit and format for

output each time the data is visualized or exported. This allows verification of the complete

software setup even after the measurement and allows correction of erroneous parameter settings.

For example, if a measurement has been performed with an incorrect crest factor parameter in the

device setup, the parameter can be corrected afterwards and the data can be reevaluated.

The measured data can be visualized or exported in different units or formats, depending on the

selected probe type (e.g., [V/m], [A/m], [mW/g]). Some of these units are not available in certain

situations or give meaningless results, e.g., a SAR-output in a non-lose media, will always be zero.

Raw data can also be exported to perform the evaluation with other software packages.

 Data Evaluation

The DASY post-processing software (SEMCAD) automatically executes the following procedures

to calculate the field units from the microvolt readings at the probe connector. The parameters used

in the evaluation are stored in the configuration modules of the software：

- Conversion factor

- Diode compression point dcpi

Normi, ai0, ai1, ai2

ConvFi

Probe parameters： - Sensitivity

Device parameters： - Frequency

- Crest factor

Media parameters： - Conductivity

- Density

f

cf

ζ

ρ

These parameters must be set correctly in the software. They can be found in the component

documents or they can be imported into the software from the configuration files issued for the

DASY components. In the direct measuring mode of the multi-meter option, the parameters of the

actual system setup are used. In the scan visualization and export modes, the parameters stored in

the corresponding document files are used.

The first step of the evaluation is a linearization of the filtered input signal to account for the

compression characteristics of the detector diode. The compensation depends on the input signal,

the diode type and the DC-transmission factor from the diode to the evaluation electronics. If the

exciting field is pulsed, the crest factor of the signal must be known to correctly compensate for

peak power.

The formula for each channel can be given as：

with Vi= compensated signal of channel i, (i = x, y, z)

Ui = input signal of channel i, (i = x, y, z)

cf = crest factor of exciting field (DASY parameter)

dcpi = diode compression point (DASY parameter)

E-field Probes： √

H-field Probes： √

From the compensated input signals, the primary field data for each channel can be evaluated：

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Report No.: E202012093384-3-G1 Application No.: E202012093384

with Vi = compensated signal of channel i,(i = x, y, z)

Normi= sensor sensitivity of channel i, (i = x, y, z), μV/(V/m)2 for E-field Probes

ConvF= sensitivity enhancement in solution

aij= sensor sensitivity factors for H-field probes

f = carrier frequency [GHz]

Ei= electric field strength of channel i in V/m

Hi= magnetic field strength of channel i in A/m

The RSS value of the field components gives the total field strength (Hermitian magnitude)：

The primary field data are used to calculate the derived field units.

√

with SAR = local specific absorption rate in mW/g

Etot= total field strength in V/m

ζ = conductivity in [mho/m] or [Siemens/m]

ρ = equivalent tissue density in g/cm3

Note that the density is set to 1, to account for actual head tissue density rather than the density of

the tissue simulating liquid.

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Report No.: E202012093384-3-G1 Application No.: E202012093384

5. TEST EQUIPMENT LIST

2450MHz Dipole

Dosimetric E-Field

Probe

Data Acquisition

Electronics

ENA Series Network

Analyzer

DAK

SAM Twin Phantom2

2mm Triple Flat

Phantom

Power Meter

Power Sensor

Kind of Equipment

Type No.

Serial No.

Last Calibration Calibrated Until

Manufactur

er

SPEAG

D2450V2

903

2019.10.15

2022.10.14

SPEAG

EX3DV4

SN 7514

2020.09.01

2021.08.31

SPEAG

DAE4

SN 796

2020.05.06

2021.05.05

Keysight

85032F

MY53202597

2020.09.25

2021.09.24

Twin SAM Phantom1

SPEAG

QD000P40CD

SPEAG

DAK-3.5

SPEAG

QD000P40CD

SPEAG

QD000P51CA

1134/3

1056

1743

1745

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Anritsu

Anritsu

ML2495A

MA2411B

1204003

1126150

2020.04.14

2021.04.13

2020.04.14

2021.04.13

Spectrum Analyzer

Keysight

N9010A

MY55370330

2020.12.16

2021.12.15

Signal generator

R&S

SMA100A

100434

2020.10.09

2021.10.08

“N/A” denotes no model name, serial No. or calibration specified.

* These test equipments have been recalibrated between the test periods. All these test equipments were

Remark:

1.

2.

within the valid period when the tests were performed.

3.

Per KDB865664 D01 requirements for dipole calibration, the test laboratory has adopted three-year

extended calibration interval. Each measured dipole is expected to evaluate with the following criteria at least on

annual interval in Appendix C.

a) There is no physical damage on the dipole;

b) System check with specific dipole is within 10% of calibrated value;

c) The most recent return-loss result , measured at least annually, deviates by no more than 20% from the

previous measurement;

d) The most recent measurement of the real or imaginary parts of the impedance, measured at least

annually is within 5Ω from the previous measurement.

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Report No.: E202012093384-3-G1 Application No.: E202012093384

6. SYSTEM VERIFICATION PROCEDURE

6.1 TISSUE VERIFICATION

For the measurement of the field distribution inside the SAM phantom with DASY, the phantom must

be filled with around 25 liters of homogeneous body tissue simulating liquid. For head SAR testing, the

liquid height from the ear reference point (ERP) of the phantom to the liquid top surface is larger than

15 cm, which is shown in Fig. 6.1. For body SAR testing, the liquid height from the center of the flat

phantom to the liquid top surface is larger than 15 cm, which is shown as followed:

Photo of 2450HSL Liquid Height for Head SAR

Frequency

(MHz)

Wat

er

(%)

Sugar

(%)

Cellulose

(%)

Salt

(%)

DGBE

(%)

Conductivity

(σ)

Permittivity

(εr)

Prevento

l

(%)

For Head

2450

55.0

0

0

0

0

45.0

1.80

39.2

The following table shows the measuring results for simulating liquid.

Measured Value

Target Value (±10%)

Tissue

Type

Measured

Frequency

(MHz)

2450 HSL

2450

εr

ζ(S/M)

εr

ζ(S/M)

39.20

(35.28~43.12)

1.80

(1.62~1.98)

39.62

1.83

19.1

Tissue

temperat

ure (℃)

Measured

Date

Jan. 12,

2021

Note:

1) The dielectric parameters of the tissue-equivalent liquid should be measured under similar ambient

conditions and within 2 °C of the conditions expected during the SAR evaluation to satisfy protocol

requirements.

2) KDB 865664 was ensured to be applied for probe calibration frequencies greater than or equal to 50MHz of

the EUT frequencies.

3) The above measured tissue parameters were used in the DASY software to perform interpolation via the

DASY software to determine actual dielectric parameters at the test frequencies. The SAR test plots may

slightly differ from the table above since the DASY rounds to three significant digits.

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Report No.: E202012093384-3-G1 Application No.: E202012093384

6.2 SYSTEM CHECK PROCEDURE

Each DASY system is equipped with one or more system validation kits. These units, together with the

predefined measurement procedures within the DASY software, enable the user to conduct the system

performance check and system validation. System validation kit includes a dipole, tripod holder to fix it

underneath the flat phantom and a corresponding distance holder.

 Purpose of System Performance check

The system performance check verifies that the system operates within its specifications. System

and operator errors can be detected and corrected. It is recommended that the system performance

check be performed prior to any usage of the system in order to guarantee reproducible results. The

system performance check uses normal SAR measurements in a simplified setup with a well

characterized source. This setup was selected to give a high sensitivity to all parameters that might

fail or vary over time. The system check does not intend to replace the calibration of the

components, but indicates situations where the system uncertainty is exceeded due to drift or

failure.

 System Setup

In the simplified setup for system evaluation, the EUT is replaced by a calibrated dipole and the

power source is replaced by a continuous wave that comes from a signal generator. The calibrated

dipole must be placed beneath the flat phantom section of the SAM twin phantom with the correct

distance holder. The distance holder should touch the phantom surface with a light pressure at the

reference marking and be oriented parallel to the long side of the phantom. The equipment setup is

shown below:

System Setup for System Evaluation

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PM1 Att1 x Dipole 3D Probe positioner Flat Phantom Field probe Signal Generator Amp 3dB Att3 Dir.Coupler Att2 PM2 Cable PM3 s Spacer Report No.: E202012093384-3-G1 Application No.: E202012093384

Photo of Dipole Setup

 Validation Results

Comparing to the original SAR value provided by SPEAG, the verification data should be within

its specification of 10%. The table below shows the target SAR and measured SAR after

normalized to 1W input power. It indicates that the system performance check can meet the

variation criterion and the plots can be referred to Appendix A of this report.

Dipole

Tissue

Type

Target Value(W/Kg) (±10%)

(Normalized to 1W)

10g

1g

Measured Value

(W/Kg)(1W)

1g

10g

Tissue

temperature

(℃)

D2450V2

2450

HSL

51.10

（45.99~56.21）

23.40

(21.06~25.74)

49.00

22.80

19.1

Measure

d Date

Jan. 12,

2021

Target and Measurement SAR after Normalized

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Report No.: E202012093384-3-G1 Application No.: E202012093384

7. SAR MEASUREMENT VARIABILITY AND UNCERTAINTY

7.1 SAR MEASUREMENT VARIABILITY

Per KDB865664 D01 SAR measurement 100 MHz to 6 GHz, SAR measurement variability must be

assessed for each frequency band, which is determined by the SAR probe calibration point and

tissue-equivalent medium used for the device measurements. The additional measurements are repeated

after the completion of all measurements requiring the same head or body tissue-equivalent medium in a

frequency band. The test device should be returned to ambient conditions (normal room temperature)

with the battery fully charged before it is re-mounted on the device holder for the repeated

measurement(s) to minimize any unexpected variations in the repeated results.

1) Repeated measurement is not required when the original highest measured SAR is < 0.80 W/kg; steps 2)

through 4) do not apply.

2) When the original highest measured SAR is ≥ 0.80 W/kg, repeat that measurement once.

3) Perform a second repeated measurement only if the ratio of largest to smallest SAR for the original and

first repeated measurements is > 1.20 or when the original or repeated measurement is≥ 1.45 W/kg (~ 10%

from the 1-g SAR limit).

4) Perform a third repeated measurement only if the original, first or second repeated measurement is ≥1.5

W/kg and the ratio of largest to smallest SAR for the original, first and second repeated measurements is >

1.20.

The same procedures should be adapted for measurements according to extremity and occupational

exposure limits by applying a factor of 2.5 for extremity exposure and a factor of 5 for occupational

exposure to the corresponding SAR thresholds.

The detailed repeated measurement results are shown in Chapter 12.

7.2 MEASUREMENT UNCERTAINTY

Per KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz, when the highest measured 1-g SAR

within a frequency band is< 1.5 W/Kg, the extensive SAR measurement uncertainty analysis described in

IEEE Std 1528-2013 is not required in SAR reports submitted for equipment approval.

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Report No.: E202012093384-3-G1 Application No.: E202012093384

8. EUT TESTING POSITION

8.1 BODY WORN POSITION

Body-worn operating configurations are tested with the belt-clips and holsters attached to the device

and positioned against a flat phantom in a normal use configuration. Per KDB 648474 D04, body-worn

accessory exposure is typically related to voice mode operations when handsets are carried in

body-worn accessories. The body-worn accessory procedures in FCC KDB 447498 D01 should be used

to test for body-worn accessory SAR compliance, without a headset connected to it. This enables the

test results for such configuration to be compatible with that required for hotspot mode when the

body-worn accessory test separation distance is greater than or equal to that required for hotspot mode,

when applicable. When the reported SAR for body-worn accessory, measured without a headset

connected to the handset is < 1.2 W/kg, the highest reported SAR configuration for that wireless mode

and frequency band should be repeated for that body-worn accessory with a handset attached to the

handset.

Accessories for body-worn operation configurations are divided into two categories: those that do not

contain metallic components and those that do contain metallic components and those that do contain

metallic components. When multiple accessories that do not contain metallic components are supplied

with the device, the device is tested with only the accessory that dictates the closest spacing to the body.

Then multiple accessories that contain metallic components are test with the device with each accessory.

If multiple accessories share an identical metallic component (i.e. the same metallic belt-chip used with

different holsters with no other metallic components) only the accessory that dictates the closest spacing

to the body is tested.

Body Worn Position

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Report No.: E202012093384-3-G1 Application No.: E202012093384

9. MEASUREMENT PROCEDURES

The measurement procedures are as follows:

(a) Use base station simulator (if applicable) or engineering software to transmit RF power continuously

(continuous Tx) in the middle channel.

(b) Keep EUT to radiate maximum output power or 100% duty factor (if applicable)

(c) Measure output power through RF cable and power meter.

(d) Place the EUT in the positions as setup photos demonstrates.

(e) Set scan area, grid size and other setting on the DASY software.

(f) Measure SAR transmitting at the middle channel for all applicable exposure positions.

(g) Identify the exposure position and device configuration resulting the highest SAR

(h) Measure SAR at the lowest and highest channels at the worst exposure position and device

configuration if applicable.

According to the test standard, the recommended procedure for assessing the peak spatial-average SAR

value consists of the following steps:

(a) Power reference measurement

(b) Area scan

(c) Zoom scan

(d) Power drift measurement

9.1 SPATIAL PEAK SAR EVALUATION

The procedure for spatial peak SAR evaluation has been implemented according to the test standard. It

can be conducted for 1g and 10g, as well as for user-specific masses. The DASY software includes all

numerical procedures necessary to evaluate the spatial peak SAR value.

The base for the evaluation is a "cube" measurement. The measured volume must include the 1g and 10g

cubes with the highest averaged SAR values. For that purpose, the center of the measured volume is

aligned to the interpolated peak SAR value of a previously performed area scan.

The entire evaluation of the spatial peak values is performed within the post-processing engine

(SEMCAD). The system always gives the maximum values for the 1g and 10g cubes. The algorithm to

find the cube with highest averaged SAR is divided into the following stages:

(a) Extraction of the measured data (grid and values) from the Zoom Scan

(b) Calculation of the SAR value at every measurement point based on all stored data (A/D values and

measurement parameters)

(c) Generation of a high-resolution mesh within the measured volume

(d) Interpolation of all measured values form the measurement grid to the high-resolution grid

(e) Extrapolation of the entire 3-D field distribution to the phantom surface over the distance from

(f) Calculation of the averaged SAR within masses of 1g and 10g

sensor to surface

9.2 POWER REFERENCE MEASUREMENT

The Power Reference Measurement and Power Drift Measurements are for monitoring the power drift

of the device under test in the batch process. The minimum distance of probe sensors to surface

determines the closest measurement point to phantom surface. This distance cannot be smaller than the

distance of sensor calibration points to probe tip as defined in the probe properties.

9.3 AREA SCAN PROCEDURES

The area scan is used as a fast scan in two dimensions to find the area of high field values, before doing

a fine measurement around the hot spot. The sophisticated interpolation routines implemented in DASY

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Report No.: E202012093384-3-G1 Application No.: E202012093384

software can find the maximum found in the scanned area, within a range of the global maximum. The

range (in dB0 is specified in the standards for compliance testing. For example, a 2 dB range is required

in IEEE standard 1528 and IEC 62209 standards, whereby 3 dB is a requirement when compliance is

assessed in accordance with the ARIB standard (Japan), if only one zoom scan follows the area scan,

then only the absolute maximum will be taken as reference. For cases where multiple maximums are

detected, the number of zoom scans has to be increased accordingly.

Area scan parameters extracted from FCC KDB 865664 D01 SAR measurement 100 MHz to 6 GHz.

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Report No.: E202012093384-3-G1 Application No.: E202012093384

9.4 ZOOM SCAN PROCEDURES

Zoom scans are used assess the peak spatial SAR values within a cubic averaging volume containing 1

gram and 10gram of simulated tissue. The zoom scan measures points (refer to table below) within a

cube shoes base faces are centered on the maxima found in a preceding area scan job within the same

procedure. When the measurement is done, the zoom scan evaluates the averaged SAR for 1 gram and

10 gram and displays these values next to the job’s label.

Zoom scan parameters extracted from FCC KDB 865664 D01 SAR measurement 100 MHz to 6 GHz.

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Report No.: E202012093384-3-G1 Application No.: E202012093384

9.5 VOLUME SCAN PROCEDURES

The volume scan is used for assess overlapping SAR distributions for antennas transmitting in different

frequency bands. It is equivalent to an oversized zoom scan used in standalone measurements. The

measurement volume will be used to enclose all the simultaneous transmitting antennas. For antennas

transmitting simultaneously in different frequency bands, the volume scan is measured separately in

each frequency band. In order to sum correctly to compute the 1g aggregate SAR, the EUT remain in

the same test position for all measurements and all volume scan use the same spatial resolution and grid

spacing. When all volume scan were completed, the software, SEMCAD postprocessor can combine

and subsequently superpose these measurement data to calculating the multiband SAR.

9.6 POWER DRIFT MONITORING

All SAR testing is under the EUT install full charged battery and transmit maximum output power. In

DASY measurement software, the power reference measurement and power drift measurement

procedures are used for monitoring the power drift of EUT during SAR test. Both these procedures

measure the field at a specified reference position before and after the SAR testing. The software will

calculate the field difference in dB. If the power drift more than 5%, the SAR will be retested.

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Report No.: E202012093384-3-G1 Application No.: E202012093384

Channel

00

Frequency (MHz)

2402

Conducted Power (dBm)

11.81

10. CONDUCTED POWER

<Bluetooth Conducted Power>

Left

Mode

GFSK

π/4DQPSK

Right

8DPSK

Mode

GFSK

π/4DQPSK

8DPSK

39

78

00

39

78

00

39

78

39

78

00

39

78

00

39

78

2441

2480

2402

2441

2480

2402

2441

2480

2441

2480

2402

2441

2480

2402

2441

2480

11.95

11.93

11.76

11.86

12.00

11.73

11.88

11.95

11.50

11.53

11.42

11.54

11.51

11.40

11.52

11.49

Channel

00

Frequency (MHz)

2402

Conducted Power (dBm)

11.43

Note:

1. Per KDB 447498 D01Chapter 4.3.1, the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6

GHz at test separation distances ≤ 50 mm are determined by:

[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,

mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR

f(GHz) is the RF channel transmit frequency in GHz

Power and distance are rounded to the nearest mW and mm before calculation

The result is rounded to one decimal place for comparison

Bluetooth Max Power

(dBm)

Separation Distance

(mm)

Frequency (GHz)

exclusion thresholds

12.00

11.54

0

0

2.48

2.441

4.99

4.45

2. Per KDB 447498 D01Chapter 4.3.1, when the minimum test separation distance is < 5 mm, a distance of

5 mm is applied to determine SAR test exclusion. The test exclusion threshold are 4.99 and 4.45 which

are > 3, SAR test for Left and Right part of the earphone are required.

3. Per KDB 447498 D01Chapter 4.3.2b), When an antenna qualifies for the standalone SAR test exclusion

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Report No.: E202012093384-3-G1 Application No.: E202012093384

of 4.3.1 and also transmits simultaneously with other antennas, the standalone SAR value must be

estimated according to the following to determine the simultaneous transmission SAR test exclusion

criteria:

[(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance,

mm)]·[√f(GHz)/x] W/kg, for test separation distances ≤ 50 mm;

where x = 7.5 for 1-g SAR and x = 18.75 for 10-g SAR.

0.4 W/kg for 1-g SAR and 1.0 W/kg for 10-g SAR, when the test separation distance is > 50 mm.

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Report No.: E202012093384-3-G1 Application No.: E202012093384

11. SAR TEST RESULTS SUMMARY

General Note:

1. Per KDB 447498 D01v05r01, the reported SAR is the measured SAR value adjusted for maximum

tune-up tolerance.

Scaling Factor = tune-up limit power (mW) / EUT RF power (mW), where tune-up limit is the

maximum rated power among all production units.

Reported SAR(W/kg)= Measured SAR(W/kg)* Scaling Factor

2. Per KDB 447498 D01v05r01, for each exposure position, if the highest output channel reported

SAR≤0.8W/kg, other channels SAR testing are not necessary

3. Per KDB865664 D01, for each frequency band, repeated SAR measurement is required only when the

measured SAR is ≥0.8W/Kg; if the deviation among the repeated measurement is ≤20%,and the measured

SAR <1.45W/Kg, only one repeated measurement is required.

Sample Band Mode

Test

Position

Gap

(mm)

Freq.

(MHz)

Average

Power

(dBm)

Tune-Up

Limit

(dBm)

Scaling

Factor

Power

Drift

(dB)

Measured

SAR1g

(W/kg)

Reported

SAR1g

(W/kg)

Plot

No.

Left Ear Bluetooth

Left Ear Bluetooth

2480

12.00

12.50

1.12

-0.05

0.013

0.01456

#1

2480

12.00

12.50

1.12

0.10

0.063

0.07056

#2

Left Ear Bluetooth

Left Side

2480

12.00

12.50

1.12

-0.07

0.035

0.0392

Left Ear Bluetooth

2480

12.00

12.50

1.12

-0.11

0.029

0.03248

Left Ear Bluetooth

Top Side

2480

12.00

12.50

1.12

0.08

0.00329 0.0036848

Left Ear Bluetooth

2480

12.00

12.50

1.12

0.07

0.032

0.03584

Bluetooth

Bluetooth

2441

11.54

12.00

1.11

-0.03

0.024

0.02664

#3

2441

11.54

12.00

1.11

0.08

0.035

0.03885

Bluetooth

Left Side

2441

11.54

12.00

1.11

0.01

0.044

0.04884

#4

Bluetooth

2441

11.54

12.00

1.11

0.19

0.00473 0.0052503

Bluetooth

Top Side

2441

11.54

12.00

1.11

-0.05

0.00508 0.0056388

Bluetooth

2441

11.54

12.00

1.11

-0.10

0.00481 0.0053391

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

π/4-DQ

PSK

Front

Face

Rear

Face

Right

Side

Bottom

Side

Front

Face

Rear

Face

Right

Side

Bottom

Side

0

0

0

0

0

0

0

0

0

0

0

0

Right

Ear

Right

Ear

Right

Ear

Right

Ear

Right

Ear

Right

Ear

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Report No.: E202012093384-3-G1 Application No.: E202012093384

12. Simultaneous Transmission Analysis

N/A.

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Report No.: E202012093384-3-G1 Application No.: E202012093384

APPENDIX A. SYSTEM CHECKING SCANS

2450MHz Head System Check

Communication System: UID 0, CW (0); Frequency: 2450 MHz

Medium parameters used: f = 2450 MHz; ζ = 1.83 S/m; εr = 39.621; ρ = 1000 kg/m3

Phantom section: Flat Section

DASY Configuration:

 Probe: EX3DV4 - SN7514; ConvF(7.18, 7.18, 7.18); Calibrated: 2020/9/1;

 Sensor-Surface: 3mm (Mechanical Surface Detection), z = 2.0, 32.0

 Electronics: DAE4 Sn796; Calibrated: 2020/5/6

 Phantom: Left Twin-SAM V5.0 (20deg probe tilt); Type: QD 000 P40 CD;

 DASY52 52.10.0(1442); SEMCAD X 14.6.10(7331)

Configuration/Head/Area Scan (9x13x1): Measurement grid: dx=10mm, dy=10mm

Maximum value of SAR (measured) = 63.9 W/kg

Configuration/Head/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm

Reference Value = 188.8 V/m; Power Drift = 0.02 dB

Peak SAR (extrapolated) = 99.6 W/kg

SAR(1 g) = 49 W/kg; SAR(10 g) = 22.8 W/kg

Maximum value of SAR (measured) = 64.3 W/kg

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Report No.: E202012093384-3-G1 Application No.: E202012093384

APPENDIX B. MEASUREMENT SCANS

BT_Left Ear_Front Face_Ch78 #1

Communication System: UID 0, Bluetooth (0); Frequency: 2480 MHz

Medium parameters used: f = 2480 MHz; ζ = 1.891 S/m; εr = 39.547; ρ = 1000 kg/m3

Phantom section: Flat Section

2021/01/12

DASY Configuration:

 Probe: EX3DV4 - SN7514; ConvF(7.18, 7.18, 7.18); Calibrated: 2020/9/1;

 Sensor-Surface: 3mm (Mechanical Surface Detection), z = -9.0, 31.0

 Electronics: DAE4 Sn796; Calibrated: 2020/5/6

 Phantom: Left Twin-SAM V5.0 (20deg probe tilt); Type: QD 000 P40 CD;

 DASY52 52.8.8(1222); SEMCAD X 14.6.10(7331)

Left Ear/Front Face/Area Scan (7x9x1): Measurement grid: dx=10mm, dy=10mm

Maximum value of SAR (measured) = 0.0174 W/kg

Left Ear/Front Face/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm

Reference Value = 0.7160 V/m; Power Drift = -0.05 dB

Peak SAR (extrapolated) = 0.0280 W/kg

SAR(1 g) = 0.013 W/kg; SAR(10 g) = 0.00523 W/kg

Maximum value of SAR (measured) = 0.0180 W/kg

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Report No.: E202012093384-3-G1 Application No.: E202012093384

BT_Left Ear_Rear Face_Ch78 #2

Communication System: UID 0, Bluetooth (0); Frequency: 2480 MHz

Medium parameters used: f = 2480 MHz; ζ = 1.891 S/m; εr = 39.547; ρ = 1000 kg/m3

Phantom section: Flat Section

2021/01/12

DASY Configuration:

 Probe: EX3DV4 - SN7514; ConvF(7.18, 7.18, 7.18); Calibrated: 2020/9/1;

 Sensor-Surface: 3mm (Mechanical Surface Detection), z = -9.0, 31.0

 Electronics: DAE4 Sn796; Calibrated: 2020/5/6

 Phantom: Left Twin-SAM V5.0 (20deg probe tilt); Type: QD 000 P40 CD;

 DASY52 52.8.8(1222); SEMCAD X 14.6.10(7331)

Left Ear/Rear Face/Area Scan (7x9x1): Measurement grid: dx=10mm, dy=10mm

Maximum value of SAR (measured) = 0.100 W/kg

Left Ear/Rear Face/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm

Reference Value = 7.160 V/m; Power Drift = 0.10 dB

Peak SAR (extrapolated) = 0.145 W/kg

SAR(1 g) = 0.063 W/kg; SAR(10 g) = 0.023 W/kg

Maximum value of SAR (measured) = 0.0943 W/kg

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BT_Right Ear_Front Face_Ch39

#3

Communication System: UID 0, Bluetooth (0); Frequency: 2441 MHz

Medium parameters used: f = 2441 MHz; ζ = 1.804 S/m; εr = 39.604; ρ = 1000 kg/m3

Phantom section: Flat Section

2021/01/12

DASY Configuration:

 Probe: EX3DV4 - SN7514; ConvF(7.18, 7.18, 7.18); Calibrated: 2020/9/1;

 Sensor-Surface: 3mm (Mechanical Surface Detection), z = -9.0, 31.0

 Electronics: DAE4 Sn796; Calibrated: 2020/5/6

 Phantom: Left Twin-SAM V5.0 (20deg probe tilt); Type: QD 000 P40 CD;

 DASY52 52.8.8(1222); SEMCAD X 14.6.10(7331)

Front Face/Front Face/Area Scan (7x9x1): Measurement grid: dx=10mm, dy=10mm

Maximum value of SAR (measured) = 0.0268 W/kg

Front Face/Front Face/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm

Reference Value = 0.6870 V/m; Power Drift = -0.03 dB

Peak SAR (extrapolated) = 0.138 W/kg

SAR(1 g) = 0.024 W/kg; SAR(10 g) = 0.00522 W/kg

Maximum value of SAR (measured) = 0.0328 W/kg

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2021/01/12

BT_Right Ear_Left Side_Ch39 #4

Communication System: UID 0, Bluetooth (0); Frequency: 2441 MHz

Medium parameters used: f = 2441 MHz; ζ = 1.804 S/m; εr = 39.604; ρ = 1000 kg/m3

Phantom section: Flat Section

DASY Configuration:

 Probe: EX3DV4 - SN7514; ConvF(7.18, 7.18, 7.18); Calibrated: 2020/9/1;

 Sensor-Surface: 3mm (Mechanical Surface Detection), z = -9.0, 31.0

 Electronics: DAE4 Sn796; Calibrated: 2020/5/6

 Phantom: Left Twin-SAM V5.0 (20deg probe tilt); Type: QD 000 P40 CD;

 DASY52 52.8.8(1222); SEMCAD X 14.6.10(7331)

Right Ear/Left Side/Area Scan (7x9x1): Measurement grid: dx=10mm, dy=10mm

Maximum value of SAR (measured) = 0.0547 W/kg

Right Ear/Left Side/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm

Reference Value = 5.291 V/m; Power Drift = 0.01 dB

Peak SAR (extrapolated) = 0.114 W/kg

SAR(1 g) = 0.044 W/kg; SAR(10 g) = 0.017 W/kg

Maximum value of SAR (measured) = 0.0628 W/kg

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APPENDIX C. RELEVANT PAGES FROM PROBE CALIBRATION

REPORT(S)

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