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LCSA11074236EB FCC SAR REPORT(2)

StarTech.com Ltd. AV53C1 USB Bluetooth 5.3 Class1 Adapter 2AA3I-AV53C1 2AA3IAV53C1 av53c1

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Page 1 of 59 FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

SAR TEST REPORT
For StarTech.com Ltd. USB Bluetooth 5.3 Class1 Adapter Test Model: AV53C1-USB-BLUETOOTH

Prepared for Address
Prepared by Address
Tel Fax Web Mail

: StarTech.com Ltd. : 45 Artisans Crescent London ON N5V 5E9 Canada
: Shenzhen LCS Compliance Testing Laboratory Ltd. : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park
Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China
: (+86)755-82591330 : (+86)755-82591332 : www.LCS-cert.com : [email protected]

Date of receipt of test sample Number of tested samples Sample number
Serial number Date of Test Date of Report

: November 08, 2024 :1 : A241107123-1
: Prototype : November 08, 2024 ~ November 11, 2024 : February 20, 2025

Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

Page 2 of 59 FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

SAR TEST REPORT

Report Reference No.................... : LCSA11074236EB

Date Of Issue..................................: February 20, 2025

Testing Laboratory Name.............: Shenzhen LCS Compliance Testing Laboratory Ltd.

Address...............................................: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China

Testing Location/ Procedure........... :

Full application of Harmonised standards Partial application of Harmonised standards Other standard testing method

Applicant's Name........................ : StarTech.com Ltd. Address........................................... : 45 Artisans Crescent London ON N5V 5E9 Canada

Test Specification:

Standard..........................................: FCC 47CFR §2.1093, ANSI/IEEE C95.1-2019, IEEE 1528-2013

Test Report Form No.................... : TRF-4-E-102 A/0

TRF Originator................................: Shenzhen LCS Compliance Testing Laboratory Ltd.

Master TRF..................................... : Dated 2014-09
Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved.
This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory Ltd. takes noresponsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context.
Test Item Description................. : USB Bluetooth 5.3 Class1 Adapter

Trade Mark......................................: N/A

Model/Type Reference..................: AV53C1-USB-BLUETOOTH

Ratings.............................................: Input: DC 5V, 1000mA

Result .............................................: Positive

Compiled by:

Supervised by:

Approved by:

Jay Zhan/ File administrators Jack Liu / Technique principal

Gavin Liang/ Manager

Page 3 of 59 FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB
SAR -- TEST REPORT

Test Report No. :

LCSA11074236EB

February 20, 2025 Date of issue

EUT...................................... : USB Bluetooth 5.3 Class1 Adapter

Type/Model .......................... : AV53C1-USB-BLUETOOTH

Applicant.............................. Address.................................. Telephone.............................. Fax.........................................

: StarTech.com Ltd. : 45 Artisans Crescent London ON N5V 5E9 Canada :/ :/

Manufacturer....................... Address..................................
Telephone.............................. Fax.........................................

: Haoliyuan (Shenzhen) Electronic Co., Ltd
: Floor 3, Building B, Huada, Fuyong Fuqiao Industrial Zone 3, baoan Shenzhen , China
:/ :/

Factory............................ Address..............................
Telephone.......................... Fax.....................................

: Haoliyuan (Shenzhen) Electronic Co., Ltd : Floor 3, Building B, Huada, Fuyong Fuqiao Industrial Zone 3,
baoan Shenzhen , China
:/ :/

Test Result

Positive

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.

Page 4 of 59 FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

Revision 000

Revison History

Issue Date February 20, 2025

Revision Content Initial Issue

Revised By ---

Page 5 of 59 FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB
TABLE OF CONTENTS
1. TEST STANDARDS AND TEST DESCRIPTION ..................................................................................................................... 6 1.1. STATEMENT OF COMPLIANCE ..................................................................................................................................................6 1.2. TEST LOCATION ...................................................................................................................................................................... 7 1.3. TEST FACILITY ........................................................................................................................................................................ 7 1.4. TEST LABORATORY ENVIRONMENT ....................................................................................................................................... 7 1.5. PRODUCT DESCRIPTION ...........................................................................................................................................................8 1.6. DUT ANTENNA LOCATIONS ....................................................................................................................................................9 1.7. TEST SPECIFICATION ............................................................................................................................................................. 10 1.8. SAR BASIC RESTRICTIONS LIMITS ......................................................................................................................................... 11 1.9. EQUIPMENT LIST ....................................................................................................................................................................12
2. SAR MEASUREMENTS SYSTEM CONFIGURATION ........................................................................................................13 2.1. SAR MEASUREMENT SYSTEM ...............................................................................................................................................13 2.2. ISOTROPIC E-FIELD PROBE EX3DV4 .................................................................................................................................... 15 2.3. DATA ACQUISITION ELECTRONICS (DAE) ............................................................................................................................16 2.4. SAM TWIN PHANTOM ...........................................................................................................................................................16 2.5. ELI PHANTOM ....................................................................................................................................................................... 17 2.6. DEVICE HOLDER FOR TRANSMITTERS ...................................................................................................................................18 2.7. MEASUREMENT PROCEDURE ................................................................................................................................................. 19
3. SAR MEASUREMENT VARIABILITY AND UNCERTAINTY ...........................................................................................23 3.1. SAR MEASUREMENT VARIABILITY ........................................................................................................................................23 3.2. SAR MEASUREMENT UNCERTAINTY ......................................................................................................................................23
4. DESCRIPTION OF TEST POSITION ...................................................................................................................................... 24 4.1. TEST POSITIONS CONFIGURATION .........................................................................................................................................24
5. SAR SYSTEM VERIFICATION PROCEDURE ......................................................................................................................25 5.1. TISSUE SIMULATE LIQUID ..................................................................................................................................................... 25 5.2. SAR SYSTEM CHECK ............................................................................................................................................................ 27
6. SAR MEASUREMENT PROCEDURE ..................................................................................................................................... 29 6.1. CONDUCTED POWER MEASUREMENT .....................................................................................................................................29 6.2. WIFI TEST CONFIGURATION .................................................................................................................................................29 6.3. POWER REDUCTION ...............................................................................................................................................................30 6.4. POWER DRIFT ........................................................................................................................................................................ 30
7. TEST CONDITIONS AND RESULTS .......................................................................................................................................31 7.1. CONDUCTED POWER RESULTS .............................................................................................................................................. 31 7.2. STAND-ALONE SAR TEST EVALUATION ................................................................................................................................ 32 7.3. SAR MEASUREMENT RESULTS ............................................................................................................................................. 33
APPENDIX A: DETAILED SYSTEM CHECK RESULTS ........................................................................................................ 35 APPENDIX B: DETAILED TEST RESULTS ...............................................................................................................................37 APPENDIX C: CALIBRATION CERTIFICATE ........................................................................................................................ 40 PHOTOGRAPHS OF THE TEST .................................................................................................................................................. 59
Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

Page 6 of 59 FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

1. TEST STANDARDS AND TEST DESCRIPTION
1.1. Statement of Compliance

The maximum of results of SAR found during testing for AV53C1-USB-BLUETOOTH are follows:

Classment Class

Frequency Band

DSS

DTS

BLE

Body (Report SAR1-g (W/kg)
(Separation Distance 0mm)
0.396 1.235

Note 1) This device is in compliance with Specific Absorption Rate (SAR) for general population/uncontrolled exposure limits (1.6 W/kg) specified in FCC 47CFR §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. 2) The USB cable is smaller than 12 inches and does not affect the radiation characteristics and output power of
the transmitter.

Page 7 of 59 FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

1.2. Test Location

Company: Address:
Telephone: Fax: Web: E-mail:

Shenzhen LCS Compliance Testing Laboratory Ltd. 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China (+86)755-82591330 (+86)755-82591330 www.LCS-cert.com [email protected]

1.3. Test Facility

The test facility is recognized, certified, or accredited by the following organizations:

Site Description

SAR Lab.

: NVLAP Accreditation Code is 600167-0.

FCC Designation Number is CN5024.

CAB identifier is CN0071.

CNAS Registration Number is L4595.

Test Firm Registration Number: 254912.

1.4. Test Laboratory Environment

Temperature

Min. = 18C, Max. = 25 C

Relative humidity

Min. = 30%, Max. = 70%

Ground system resistance

< 0.5

Atmospheric pressure:

950-1050mbar

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.

Page 8 of 59 FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

1.5. Product Description

The StarTech.com Ltd. 's Model: AV53C1-USB-BLUETOOTH or the "EUT" as referred to in this report; more general information as follows, for more details, refer to the user's manual of the EUT.

EUT Test Model Ratings Hardware Version Software Version Bluetooth Frequency Range Channel Number
Channel Spacing
Modulation Type
Bluetooth Version Antenna Description Exposure category

: USB Bluetooth 5.3 Class1 Adapter
: AV53C1-USB-BLUETOOTH : Input: DC 5V, 1000mA
: V10
: RTBlueR_Windows_1051.1038.1040.0616.2023_F027_L(135428)
:
: 2402MHz~2480MHz
: 79 channels for Bluetooth V5.3(DSS) 40 channels for Bluetooth V5.3 (DTS)
: 1MHz for Bluetooth V5.3 (DSS) 2MHz for Bluetooth V5.3 (DTS)
: GFSK, /4-DQPSK, 8-DPSK for Bluetooth V5.3(DSS) GFSK for Bluetooth V5.3 (DTS)
: V5.3
: External Antenna, 5.0dBi(Max.)
Uncontrolled Environment General Population

Note: For a more detailed antenna description, please refer to the antenna manufacturer's specifications or the antenna report.

Page 9 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

1.6. DUT Antenna Locations

According to the Bluetooth antennas we can draw the conclusion that:
EUT Sides for SAR Testing

Mode

Exposure Condition

Front Back Left Right Top Bottom

Bluetooth Antenna

Body 1g SAR

Yes

Table 1 EUT Sides for SAR Testing

Page 10 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

1.7. Test Specification

Identity

Document Title

FCC 47CFR §2.1093 ANSI/IEEE C95.1-2019 IEEE 1528-2013 KDB 248227 D01

Radiofrequency Radiation Exposure Evaluation: Portable Devices
IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz 300 GHz. Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques
SAR Guidance for IEEE 802 11 Wi-Fi SAR v02r02

KDB 616217 D04

SAR for Tablet and Laptop

KDB 447498 D01

General RF Exposure Guidance v06

KDB 447498 D02

SAR Procedures for Dongle Xmtr v02r01

KDB 865664 D01

SAR Measurement 100 MHz to 6 GHz v01r04

KDB 865664 D02

RF Exposure Reporting v01r02

KDB 690783 D01

SAR Listings on Grants v01r03

Page 11 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

1.8. SAR basic restrictions limits

Human Exposure
Spatial Peak SAR* (Brain*Trunk)
Spatial Average SAR** (Whole Body)
Spatial Peak SAR*** (Hands/Feet/Ankle/Wrist)

Uncontrolled Environment General Population 1.60 mW/g
0.08 mW/g
4.00 mW/g

Controlled Environment Occupational 8.00 mW/g
0.40 mW/g
20.00 mW/g

Notes: * The Spatial Peak value of the SAR averaged over any 1 gram of tissue (defined as a tissue volume in the shape of a
cube) and over the appropriate averaging time ** The Spatial Average value of the SAR averaged over the whole body. *** The Spatial Peak value of the SAR averaged over any 10 grams of tissue (defined as a tissue volume in the shape
of a cube) and over the appropriate averaging time. Uncontrolled Environments are defined as locations where there is the exposure of individuals who have no
knowledge or control of their exposure. Controlled Environments are defined as locations where there is exposure that may be incurred by persons who are
aware of the potential for exposure, (i.e. as a result of employment or occupation.)

Page 12 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

1.9. Equipment list

Test Platform

SPEAG DASY5 Professional

Description

SAR Test System (Frequency range 300MHz-6GHz)

Software Reference DASY52; SEMCAD X

Hardware Reference

Equipment

Manufacturer

Model

Serial Number

Lenovo

Twin Phantom

SPEAG

SAM V5.0

1850

ELI Phantom

SPEAG

ELI V6.0

2010

DAE

SPEAG

DAE3

373

E-Field Probe

SPEAG

EX3DV4

3805

Validation Kits

SPEAG

D2450V2

808

Agilent Network Analyzer

Agilent

8753E

SU38432944

Dielectric Probe Kit

SPEAG

DAK3.5

1425

Universal Radio Communication Tester

R&S

CMW500

42115

Directional Coupler

MCLI/USA

4426-20

03746

Power meter

Agilent

E4419B MY45104493

Power meter

Agilent

E4419B MY45100308

Power sensor

Agilent

E9301H MY41495616

Power sensor

Agilent

E9301H MY41495234

Signal Generator

Agilent

E4438C MY49072627

Broadband Preamplifier

BP-01M18G P190501

DC POWER SUPPLY

I-SHENG

SP-504

Speed reading thermometer

HTC-1

LCS-E-138

Note: All the equipments are within the valid period when the tests are performed.

Calibration Date NA1 NA1 NA1
2024/1/3 2023/11/23 2023/10/23
2024/6/6 2024/6/6
2024/10/8
2024/6/6 2024/10/8 2024/10/8 2024/10/8 2024/10/8 2024/6/6 2024/6/6 2024/6/6
2024/6/6

1" : NA as this is not measurement equipment.

Due date of calibration
NA1 NA1 NA1 2025/1/2 2024/11/22 2026/10/22 2025/6/5 2025/6/5
2025/10/7
2025/6/5 2025/10/7 2025/10/7 2025/10/7 2025/10/7 2025/6/5 2025/6/5 2025/6/5
2025/6/5

Page 13 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

2. SAR MEASUREMENTS SYSTEM CONFIGURATION
2.1. SAR Measurement System
This SAR Measurement System uses a Computer-controlled 3-D stepper motor system (SPEAG DASY5 professional system). A E-field probe is used to determine the internal electric fields. The SAR can be obtained from the equation SAR= (|Ei|2)/ where and are the conductivity and mass density of the tissue-Simulate.
The DASY5 system for performing compliance tests consists of the following items: A standard high precision 6-axis robot (Stabile RX family) with controller, teach pendant and software .An arm extension for accommodation the data acquisition electronics (DAE).
A dosimetric probe, i.e., an isotropic E-field probe optimized and calibrated for usage in tissue simulating liquid. The probe is equipped with an optical surface detector system.
A data acquisition electronics (DAE) which performs the signal amplification, signal multiplexing, AD-conversion, offset measurements, mechanical surface detection, collision detection, etc. The unit is battery powered with standard or rechargeable batteries. The signal is optically transmitted to the EOC.
The Electro-optical converter (EOC) performs the conversion between optical and electrical of the signals for the digital communication to DAE and for the analog signal from the optical surface detection. The EOC is connected to the measurement server.

F-1. SAR Measurement System Configuration
Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

Page 14 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

The function of the measurement server is to perform the time critical tasks such as signal filtering, control of the robot operation and fast movement interrupts.
A probe alignment unit which improves the (absolute) accuracy of the probe positioning. A computer operating Windows 7. DASY5 software. Remote control with teach pendant and additional circuitry for robot safety such as warning lamps, etc. The SAM twin phantom enabling testing left-hand, right-hand and Body Worn usage. The device holder for handheld mobile phones. Tissue simulating liquid mixed according to the given recipes. Validation dipole kits allowing to validating the proper functioning of the system.

Page 15 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

2.2. Isotropic E-field Probe EX3DV4
Symmetrical design with triangular core Built-in shielding against static charges PEEK enclosure material (resistant to organic solvents, e.g., DGBE)

Calibration Frequency Directivity Dynamic Range Dimensions
Application
Compatibility

ISO/IEC 17025 calibration service available.
10 MHz to > 6 GHz Linearity: ± 0.2 dB (30 MHz to 6 GHz)
± 0.3 dB in TSL (rotation around probe axis) ± 0.5 dB in TSL (rotation normal to probe axis)
10 µW/g to > 100 mW/g Linearity: ± 0.2 dB (noise: typically < 1 µW/g)
Overall length: 337 mm (Tip: 20 mm) Tip diameter: 2.5 mm (Body: 12 mm) Typical distance from probe tip to dipole centers: 1 mm
High precision dosimetric measurements in any exposure scenario (e.g., very strong gradient fields); the only probe that enables compliance testing for frequencies up to 6 GHz with precision of better 30%.
DASY3, DASY4, DASY52 SAR and higher, EASY4/MRI

Page 16 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

2.3. Data Acquisition Electronics (DAE)

Model Construction

DAE
Signal amplifier, multiplexer, A/D converter and control logic. Serial optical link for communication with DASY4/5 embedded system (fully remote controlled). Two step probe touch detector for mechanical surface detection and emergency robot stop.

Measurement Range
Input Offset Voltage
Input Bias Current
Dimensions

-100 to +300 mV (16 bit resolution and two range settings: 4mV,400mV)
< 5V (with auto zero)
< 50 f A
60 x 60 x 68 mm

2.4. SAM Twin Phantom

Material

Vinylester, glass fiber reinforced (VEGF)

Liquid Compatibility

Compatible with all SPEAG tissue simulating liquids (incl. DGBE type)

Shell Thickness

2 ± 0.2 mm (6 ± 0.2 mm at ear point)

Dimensions
(incl. Wooden Support)

Length: 1000 mm Width: 500 mm Height: adjustable feet

Filling Volume

approx. 25 liters

Wooden Support

SPEAG standard phantom table

The shell corresponds to the specifications of the Specific Anthropomorphic Mannequin (SAM) phantom defined in IEEE 1528 and IEC 62209-1. It enables the dosimetric evaluation of left and right hand phone usage as well as body mounted usage at the flat phantom region. A cover prevents evaporation of the liquid. Reference markings on the phantom allow the complete setup of all predefined phantom positions and measurement grids by teaching three points with the robot.
Twin SAM V5.0 has the same shell geometry and is manufactured from the same material as Twin SAM V4.0, but has reinforced top structure.

Page 17 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

2.5. ELI Phantom

Material Liquid Compatibility Shell Thickness Dimensions
Filling Volume

Vinylester, glass fiber reinforced (VE-GF) Compatible with all SPEAG tissue simulating liquids (incl. DGBE type) 2.0 ± 0.2 mm (bottom plate) Major axis: 600 mm Minor axis: 400 mm approx. 30 liters

Wooden Support SPEAG standard phantom table

Phantom for compliance testing of handheld and body-mounted wireless devices in the frequency range of 30 MHz to 6 GHz. ELI is fully compatible with the IEC 62209-2 standard and all known tissue simulating liquids. ELI has been optimized regarding its performance and can be integrated into our standard phantom tables. A cover prevents evaporation of the liquid. Reference markings on the phantom allow installation of the complete setup, including all predefined phantom positions and measurement grids, by teaching three points. The phantom is compatible with all SPEAG dosimetric probes and dipoles.
ELI V5.0 has the same shell geometry and is manufactured from the same material as ELI4, but has reinforced top structure.

Page 18 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

2.6. Device Holder for Transmitters

F-2. Device Holder for Transmitters
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 centres for both scales are the ear reference point (ERP). Thus the device needs no repositioning when changing the angles.
The DASY device holder has been made out of low-loss POM material having the following dielectric parameters: relative permittivity =3 and loss tangent =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.

Page 19 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

2.7. Measurement procedure
2.7.1 Scanning procedure
Step 1: Power reference measurement
The "reference" and "drift" measurements are located at the beginning and end of the batch process. They measure the field drift at one single point in the liquid over the complete procedure.
Step 2: Area scan
The SAR distribution at the exposed side of the head was measured at a distance of 4mm from the inner surface of the shell. The area covered the entire dimension of the head and the horizontal grid spacing was 15mm*15mm or 12mm*12mm or 10mm*10mm.Based on the area scan data, the area of the maximum absorption was determined by spline interpolation.
Step 3: Zoom scan
Around this point, a volume of 32mm*32mm*30mm (f2GHz), 30mm*30mm*30mm (f for 2-3GHz) and 24mm*24mm*22mm (f for 5-6GHz) was assessed by measuring 5x5x7 points (f2GHz), 7x7x7 points (f for 2-3GHz) and 7x7x12 points (f for 5-6GHz). On this basis of this data set, the spatial peak SAR value was evaluated with the following procedure: The data at the surface was extrapolated, since the centre of the dipoles is 2.0mm away from the tip of the probe and the distance between the surface and the lowest measuring point is 1.2mm. (This can be variable. Refer to the probe specification).The extrapolation was based on a least square algorithm. A polynomial of the fourth order was calculated through the points in z-axes. This polynomial was then used to evaluate the points between the surface and the probe tip. The maximum interpolated value was searched with a straight-forward algorithm. Around this maximum the SAR values averaged over the spatial volumes (1g or 10g) were computed using the 3D-Spline interpolation algorithm. The volume was integrated with the trapezoidal algorithm. One thousand points were interpolated to calculate the average. All neighbouring volumes were evaluated until no neighboring volume with a higher average value was found. The area and zoom scan resolutions specified in the table below must be applied to the SAR measurements Probe boundary effect error compensation is required for measurements with the probe tip closer than half a probe tip diameter to the phantom surface. Both the probe tip diameter and sensor offset distance must satisfy measurement protocols; to ensure probe boundary effect errors are minimized and the higher fields closest to the phantom surface can be correctly measured and extrapolated to the phantom surface for computing 1-g SAR. Tolerances of the postprocessing algorithms must be verified by the test laboratory for the scan resolutions used in the SAR measurements, according to the reference distribution functions specified in IEEE Std. 1528-2013.

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

Step 4: Power reference measurement (drift)
The Power Drift Measurement job measures the field at the same location as the most recent power reference measurement job within the same procedure, and with the same settings. The indicated drift is mainly the variation of the DUT's output power and should vary max. ± 5 %
2.7.1. Data Storage
The DASY software stores the acquired data from the data acquisition electronics as raw data (in microvolt readings from the probe sensors), together with all necessary software parameters for the data evaluation (probe calibration data, liquid parameters and device frequency and modulation data) in measurement files with the extension ".DAE4". The 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 incorrect parameter settings. For example, if a measurement has been performed with a wrong crest factor parameter in the device setup, the parameter can be corrected afterwards and the data can be re-evaluated. The measured data can be visualized or exported in different units or formats, depending on the selected probe type ([V/m], [A/m], [°C], [m W/g], [m W/cm²], [dBrel], etc.). Some of these units are not available in certain situations or show meaningless results, e.g., a SAR output in a lossless media will always be zero. Raw data can also be exported to perform the evaluation with other software packages.
Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

Page 21 of 59

FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

2.7.2. Data Evaluation by SEMCAD

The SEMCAD software 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:

Probe parameters: - Sensitivity

- Conversion factor

ConvFi

- Diode compression point

Dcpi

Device parameters: - Frequency

- Crest factor

Media parameters: - Conductivity

- Density

Normi, ai0, ai1, ai2
f

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 multimeter 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 DCtransmission 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) dcp i = diode compression point (DASY parameter)
From the compensated input signals the primary field data for each channel can be evaluated:
E-field probes:

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

H-field probes:

With Vi = compensated signal of channel i

Normi = sensor sensitivity of channel I

(i = x, y, z)

[mV/(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

(i = x, y, z)

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

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

= equivalent tissue density in g/cm3

Note that the density is normally set to 1 (or 1.06), to account for actual brain density rather than the density of the simulation liquid. The power flow density is calculated assuming the excitation field to be a free space field.

or
with Ppwe = equivalent power density of a plane wave in mW/cm2 Etot = total electric field strength in V/m Htot = total magnetic field strength in A/m

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

3. SAR measurement variability and uncertainty

3.1. SAR measurement variability
Per KDB865664 D01 SAR measurement 100 MHz to 6 GHz v01r04, 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.
3.2. SAR 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.

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FCC ID: 2AA3I-AV53C1

4. Description of Test Position
4.1. Test Positions Configuration

Report No.: LCSA11074236EB

Test all USB orientations [see figure below: (A) Horizontal-Up, (B) Horizontal-Down, (C) Vertical-Front, and (D) Vertical-Back] with a device-to-phantom separation distance of 5 mm or less, according to KDB Publication 447498 D01 requirements. These test orientations are intended for the exposure conditions found in typical laptop/notebook/netbook or tablet computers with either horizontal or vertical USB connector configurations at various locations in the keyboard section of the computer. Current generation portable host computers should be used to establish the required SAR measurement separation distance. The same test separation distance must be used to test all frequency bands and modes in each USB orientation. The typical Horizontal-Up USB connection (A), found in the majority of host computers, must be tested using an appropriate host computer. A host computer with either VerticalFront (C) or Vertical-Back (D) USB connection should be used to test one of the vertical USB orientations. If a suitable host computer is not available for testing the Horizontal-Down (B) or the remaining Vertical USB orientation, a high quality USB cable, 12 inches or less, may be used for testing these other orientations. It must be documented that the USB cable does not influence the radiating characteristics and output power of the transmitter.

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

5. SAR System Verification Procedure

5.1. Tissue Simulate Liquid

5.1.1. Recipes for Tissue Simulate Liquid

The bellowing tables give the recipes for tissue simulating liquids to be used in different frequency bands

Ingredients

(% by weight)

450

700-900

Water

38.56

40.30

Salt (NaCl)

3.95

1.38

Sucrose

56.32

57.90

HEC

0.98

0.24

Bactericide

0.19

0.18

Tween

Salt: 99+% Pure Sodium Chloride

Water: De-ionized, 16 M+ resistivity

Tween: Polyoxyethylene (20) sorbitan monolaurate

Frequency (MHz)

1750-2000

2300-2500

55.24

55.00

0.31

0.2

44.45

44.80

Sucrose: 98+% Pure Sucrose

HEC: Hydroxyethyl Cellulose

2500-2700 54.92 0.23 0 0 0 44.85

HSL5GHz is composed of the following ingredients Water50-65% Mineral oil10-30% Emulsifiers8-25% Sodium salt0-1.5%
Table 2 Recipe of Tissue Simulate Liquid

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

5.1.2. Measurement for Tissue Simulate Liquid

The dielectric properties for this Tissue Simulate Liquids were measured by using the DAKS. The Conductivity () and Permittivity () are listed in bellow table. For the SAR measurement given in this report. The temperature variation of the Tissue Simulate Liquids was 22±2°C.

Tissue Type

Measured Frequency
MHz

Target Tissue (±5%)

(S/m)

2450 Head

2450

39.2 (37.24~41.16)

1.8 (1.71~1.89)

Table 3 Measurement result of Tissue electric parameters

Measured Tissue

(S/m)

39.266

1.826

Liquid Temp.
()
23.6

Measured Date
November 08, 2024

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

5.2. SAR System Check
The microwave circuit arrangement for system Check is sketched in F-1. The daily system accuracy verification occurs within the flat section of the SAM phantom. A SAR measurement was performed to see if the measured SAR was within +/- 10% from the target SAR values. The tests were conducted on the same days as the measurement of the EUT. The obtained results from the system accuracy verification are displayed in the following table (A power level of 100mW (below 3GHz) or 100mW (3-6GHz) was input to the dipole antenna). During the tests, the ambient temperature of the laboratory was in the range 22±2°C, the relative humidity was in the range 60% and the liquid depth above the ear reference points was above 15±0.5 cm in all the cases. It is seen that the system is operating within its specification, as the results are within acceptable tolerance of the reference values.

F-1. the microwave circuit arrangement used for SAR system check
5.2.1. Justification for Extended SAR Dipole Calibrations
1) Referring to KDB865664 D01 requirements for dipole calibration, instead of the typical annual calibration recommended by measurement standards, longer calibration intervals of up to three years may be considered when it is demonstrated that the SAR target, impedance and return loss of a dipole have remain stable according to the following requirements. 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) Return-loss is within 20% of calibrated measurement; d) Impedance is within 5 from the previous measurement.
2) Network analyzer probe calibration against air, distilled water and a shorting block performed before measuring liquid parameters.
Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

5.2.2. Summary System Check Result(s)

Validation Kit

Measured SAR
100mW
1g (W/kg)

Measured SAR
100mW
10g (W/kg)

Measured SAR
(normalized to 1W)
1g (W/kg)

D2450V2

Head

5.12

2.35

Table 4 Please see the Appendix A

51.20

Measured SAR
(normalized to 1W)
10g (W/kg)
23.50

Target SAR (normalized
to 1W) (±10%)
1-g(W/kg)
53.5 (48.15~58.85)

Target SAR (normalized
to 1W (±10%)
10-g(W/kg)
24.8 (22.32~27.28)

Liquid Temp.
()
23.6

Measured Date
November 08, 2024

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

6 . SAR measurement procedure
The measurement procedures are as follows:
6.1. Conducted power measurement
a. For WLAN/BT power measurement, use engineering software to configure EUT WLAN/BT continuously Transmission, at maximum RF power in each supported wireless interface and frequency band. b. Connect EUT RF port through RF cable to the power meter, and measure WLAN/BT output power.
6.2. WIFI Test Configuration
For WiFi SAR testing, a communication link is set up with the testing software for WiFi mode test. During the test,at the each test frequency channel, the EUT is operated at the RF continuous emission mode. Per KDB 248227D01, a minimum transmission duty factor of 85% is required to avoid certain hardware and device implementation issues related to wide range SAR scaling. The repotted SAR must be scaled to 100% transmission duty factor to determine compliance at the maximum tune-up tolerance limit.

6.2.1. Initial Test Position Procedure
For exposure condition with multiple test position, such as handsets operating next to the ear, devices with hotspot mode or IJMPC mini-tablet , procedures for initial test position can be applied. Using the transmission mode determined by the DSSS procedure or initial test confiquration, area scans are measured for all position in an exposure condition. The test position with the highest extrapolated(peak) SAR is used as the initial test position. When reported SAR for the initial test position is 0.4W/kg, no additional testing for the remaining test position is required. Otherwise, SAR is evaluated at the subsequent highest peak SAR position until the reported SAR result is 0.8W/kg or all test position are measured. For all positions/configurations tested using the initial test position and subsequent test positions, when the repotted SAR is > 0.8 W/kg, SAR is measured for these test positions/configurations on the subsequent next highest measured output power channel(s) until the reported SAR is 1.2 W/kg or all required channels are tested.

6.2.2. Initial Test Configuration Procedure
An initial test confiquration is determined for OFDM transmission modes according to the channel bandwidth, modulation and data rate combination(s) with the highest maximum output power specified for production units in each standalone and aggregated frequency band. SAR is measured using the highest measured maximum output power channel. For configurations with the same specified or measured maximum output power, additional transmission mode and test channel selection procedures are required (see section 5.3.2 of KDB 248227D01 ). SAR test reduction of subsequent highest output test channels is based on the reported SAR of the initial test configuration. For next to the ear, hotspot mode and CIMC mini-tablet exposure configurations where multiple test positions are required, the initial test position procedure is applied to minimize the number of test positions required for SAR measurement using the initial test configuration transmission mode. For fixed exposure conditions that do not have multiple SAR test positions, SAR is measured in the transmission mode determined by the initial test confiquration. When the reported SAR of the initial test confiquration is > 0.8 W/kg, SAR measurement is required for the subsequent next highest measured output power channel(s) in the initial test confiquration until the repotted SAR is 1.2 W/kg or all required channels are tested.

6.2.3. Sub Test Configuration Procedure
SAR measurement requirements for the remaining 802 11 transmission mode configurations that have not been tested in the initial test confiquration are determined separately for each standalone and aggregated frequency band, in each exposure condition, according to the maximum output power specified for production units. When the highest reported SAR for the initial test confiquration, according to the initial test position or fixed exposure position requirements, is adjusted by the ratio of the subsequent test configuration to initial test confiquration specified maximum output power and the adjusted SAR is 1.2 W/kg, SAR is not required for that subsequent test configuration.

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

6.2.4. WiFi 2.4G SAR Test Procedures
Separate SAR procedures are applied to DSSS and OFDM configurations in the 2.4 GHz band to simplify DSSS test requirements. For 802.11b DSSS SAR measurements, DSSS SAR procedure applies to fixed exposure test position and initial test position procedure applies to multiple exposure test positions.
a) 802.11b DSSS SAR Test Requirements SAR is measured for 2.4 GHz 802.11b DSSS using either a fixed test position or, when applicable, the initial test position procedure. SAR test reduction is determined according to the following:
1) When the reported SAR of the highest measured maximum output power channel (section 3.1 of of KD8 248227D01) for the exposure configuration is 0.8 W/kg, no further SAR testing is required for 802.11b DSSS in that exposure configuration.
2) When the reported SAR is > 0 8 W/kg, SAR is required for that exposure configuration using the next highest measured output power channel. When any reported SAR is > 1.2 W/kg, SAR is required for the third channel; i.e., all channels require testing.
b) 2.4GHz 802.11g/n OFDM SAR Test Exclusion Requirements When SAR measurement is required for 2.4 GHz 802.11g/n OFDM configurations, the measurement and test reduction procedures for OFDM are applied (section 5.3 of of KD8 248227D01 SAR is not required for the following 2.4 GHz OFDM conditions.
1) When KDB Publication 447498 SAR test exclusion applies to the OFDM configuration.
2) When the highest reported SAR for DSSS is adjusted by the ratio of OFDM to DSSS specified maximum output power and the adjusted SAR is 1.2 W/kg.
c) SAR Test Requirements for OFDM configurations When SAR measurement is required for 802.11 a/g/n/ac OFDM configurations, each standalone and frequency aggregated band is considered separately for SAR test reduction. When the same transmitter and antenna(s) are used for U-NII-I and U-Nll-2A bands, additional SAR test reduction applies. When band gap channels between U-Nll-2C band and 5.8 GHz U-Nll-3 or §15.247 band are supported, the highest maximum output power transmission mode configuration and maximum output power channel across the bands must be used to determine SAR test reduction, according to the initial test configuration and subsequent test configuration requirements. In applying the initial test confiquration and subsequent test confiquration procedures, the 802.11 transmission configuration with the highest specified maximum output power and the channel within a test configuration with the highest measured maximum output power should be clearly distinguished to apply the procedures.

6.3. Power Reduction
The product without any power reduction.
6.4. Power Drift
To control the output power stability during the SAR test, SAR system calculates the power drift by measuring the E-field at the same location at the beginning and at the end of the measurement for each test position. This ensures that the power drift during one measurement is within ±0.2dB.

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

7. TEST CONDITIONS AND RESULTS

7.1. Conducted Power Results

According KDB 447498 D01 General RF Exposure Guidance v06 Section 4.1 2) states that "Unless it is specified differently in the published RF exposure KDB procedures, these requirements also apply to test reduction and test exclusion considerations. Time-averaged maximum conducted output power applies to SAR and, as required by § 2.1091(c), time-averaged ERP applies to MPE. When an antenna port is not available on the device to support conducted power measurement, such as FRS and certain Part 15 transmitters with built-in integral antennas, the maximum output power allowed for production units should be used to determine RF exposure test exclusion and compliance."

7.1.1. Conducted Power Measurement Results(Bluetooth)

Condition

Mode

Frequency (MHz)

Antenna Conducted Power (dBm) Tune up (dBm)

NVNT NVNT NVNT NVNT NVNT NVNT NVNT NVNT NVNT

1-DH5 1-DH5 1-DH5 2-DH5 2-DH5 2-DH5 3-DH5 3-DH5 3-DH5

Condition

Mode

NVNT NVNT NVNT NVNT NVNT NVNT

BLE 1M BLE 1M BLE 1M BLE 2M BLE 2M BLE 2M

Bluetooth (1-DH5): Duty cycle=77.37%

2402 2441 2480 2402 2441 2480 2402 2441 2480

Ant1 Ant1 Ant1 Ant1 Ant1 Ant1 Ant1 Ant1 Ant1

Frequency (MHz)

Antenna

2402 2440 2480 2402 2440 2480

Ant1 Ant1 Ant1 Ant1 Ant1 Ant1

Bluetooth (BLE 2M): Duty cycle=34.8%

13.27
13.56
12.56
12.12
12.44
11.56
12.49
12.29
12.12
Conducted Power (dBm) 13.36 13.4 13.16 16.93 18.41 18.35

14.00
14.00
14.00
13.00
13.00
12.00
13.00
13.00
13.00
Tune up (dBm) 14.00 14.00 14.00 18.50 18.50 18.50

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FCC ID: 2AA3I-AV53C1

7.2. Stand-alone SAR test evaluation

Report No.: LCSA11074236EB

Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and Product specific 10g SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.

Freq. Band
Bluetooth

Frequency (GHz)
2.48

Position Body

Average Power dBm mW
18.5 70.79

Test Separation (mm)
5

Calculate Value
22.297

Exclusion Threshold
3

Exclusion (Y/N)
N

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 1g SAR and 7.5 for 10-g extremity SAR, where · 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
The test exclusions are applicable only when the minimum test separation distance is 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion.

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

7.3. SAR Measurement Results
The calculated SAR is obtained by the following formula: Reported SAR=Measured SAR*10(Ptarget-Pmeasured))/10* DutyCycle Factor Scaling factor=10(Ptarget-Pmeasured))/10 DutyCycle Factor=1/Dutycycle% Reported SAR= Measured SAR* Scaling factor* DutyCycle Factor
Where Ptarget is the power of manufacturing upper limit; Pmeasured is the measured power; Measured SAR is measured SAR at measured power which including power drift) Reported SAR which including Power Drift and Scaling factor

7.3.1. SAR Results [Bluetooth ]

Ch/ Freq. (MHz)
39/2441 39/2441 39/2441 39/2441 39/2441

Channel Type
1-DH5 1-DH5 1-DH5 1-DH5 1-DH5

SAR Values [BT]

Test Position

Duty Cycle

Conducted Power (dBm)

Maximum Allowed Power (dBm)

Power Drift (dB)

Scaling Factor

measured / reported SAR numbers - Body (Test data distance 0mm) ANT-Horizontal

Front side

1.292

13.56

14.00

-0.05

1.107

Rear side

1.292

13.56

14.00

0.18

1.107

Left side

1.292

13.56

14.00

-0.10

1.107

Top side

1.292

13.56

14.00

-0.12

1.107

Bottom side

1.292

13.56

14.00

-0.03

1.107

39/2441 39/2441 39/2441 39/2441 39/2441

1-DH5 1-DH5 1-DH5 1-DH5 1-DH5

measured / reported SAR numbers - Body (Test data distance 0mm) ANT-Vertical

Front side

1.292

13.56

14.00

-0.06

1.107

Rear side

1.292

13.56

14.00

-0.12

1.107

Left side

1.292

13.56

14.00

-0.14

1.107

Top side

1.292

13.56

14.00

-0.01

1.107

Bottom side

1.292

13.56

14.00

0.11

1.107

SAR1-g results(W/kg) Measured Reported

0.254 0.277 0.147 0.214 0.205
0.002 0.187 0.054 0.174 0.170

0.363 0.396 0.210 0.306 0.293
0.003 0.267 0.077 0.249 0.243

Ch/ Freq. (MHz)
19/2440 0/2402 19/2440 39/2480 19/2440 19/2440 19/2440
19/2440 0/2402 19/2440 39/2480 19/2440

Channel Type
BLE 2M BLE 2M BLE 2M BLE 2M BLE 2M BLE 2M BLE 2M
BLE 2M BLE 2M BLE 2M BLE 2M BLE 2M

SAR Values [BLE]

Test Position

Duty Cycle

Conducted Power (dBm)

Maximum Allowed Power (dBm)

Power Drift (dB)

Scaling Factor

measured / reported SAR numbers - Body (Test data distance 0mm) ANT-Horizontal

Front side

2.874

18.41

18.50

-0.05

1.021

Rear side

2.880

16.93

18.50

0.17

1.435

Rear side

2.874

18.41

18.50

-0.15

1.021

Rear side

2.874

18.35

18.50

0.13

1.035

Left side

2.874

18.41

18.50

0.02

1.021

Top side

2.874

18.41

18.50

-0.17

1.021

Bottom side

2.874

18.41

18.50

0.09

1.021

measured / reported SAR numbers - Body (Test data distance 0mm) ANT-Vertical

Front side

2.874

18.41

18.50

-0.03

1.021

Rear side

2.880

16.93

18.50

0.14

1.435

Rear side

2.874

18.41

18.50

0.07

1.021

Rear side

2.874

18.35

18.50

0.18

1.035

Left side

2.874

18.41

18.50

0.05

1.021

SAR1-g results(W/kg) Measured Reported

0.398 0.289 0.421 0.400 0.287 0.352 0.348
0.225 0.274 0.385 0.352 0.274

1.168 1.195 1.235 1.190 0.842 1.033 1.021
0.660 1.133 1.129 1.047 0.804

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

19/2440 19/2440

BLE 2M BLE 2M

Top side Bottom side

2.874 2.874

18.41 18.41

18.50 18.50

0.12 -0.01

1.021 1.021

0.377 0.375

Note:

The maximum Scaled SAR value is marked in bold. Graph results refer to Appendix B.

1.106 1.100

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

APPENDIX A: DETAILED SYSTEM CHECK RESULTS

1. System Performance Check System Performance Check 2450 MHz Head

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

APPENDIX B: DETAILED TEST RESULTS

1. Bluetooth BT for Body BLE for Body

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

APPENDIX C: CALIBRATION CERTIFICATE

1. Dipole D2450V2-SN 808(2023-10-23) 2. DAE DAE3-SN 373(2024-01-03) 3. Probe EX3DV4-SN 3805(2023-11-23)

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FCC ID: 2AA3I-AV53C1 Report No.: LCSA11074236EB

PHOTOGRAPHS OF THE TEST
Please refer to separated files for Test Setup Photos of SAR.

. EUT Constructional Details
Please refer to separated files for Test Setup Photos of SAR.

.....................The End of Test Report.........................

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