Funai Electric R & D (Shenzhen) Co., Ltd.

WiFi module

brave acs

Test report part 1

Funai Electric R&D; (Shenzhen) Co., Ltd. U9W43 WiFi module 2AU3BU9W43 2AU3BU9W43 u9w43

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FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

FCC PART 15E TEST REPORT FOR CERTIFICATION On Behalf of
Funai Electric R & D (Shenzhen) Co., Ltd. WiFi module
Model No.: U9W43 FCC ID: 2AU3BU9W43
Prepared for : Funai Electric R & D (Shenzhen) Co., Ltd. B303 Technology Building II, 1057 Nanhai Road, Nanshan District, Shenzhen, China 518067
Prepared By : Audix Technology (Shenzhen) Co., Ltd. No. 6, Kefeng Road, Science & Technology Park, Nanshan District , Shenzhen, Guangdong, China Tel: (0755) 26639496
Report Number  ACS-F22010 Date of Test  Dec.09,2021~Jan.08,2022 Date of Report  Feb.28,2022

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 1 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

TABLE OF CONTENTS

Description

Page

1. SUMMARY OF STANDARDS AND RESULTS ............................................................. 5
1.1. Description of Standards and Results ..................................................................................... 5
2. GENERAL INFORMATION.............................................................................................6
2.1. Description of Equipment Under Test .................................................................................... 6 2.2. Feature of Equipment Under Test ........................................................................................... 7 2.3. Test Information...................................................................................................................... 8 2.4. Tested Supporting System Details .......................................................................................... 9 2.5. Block diagram of connection between the EUT and simulators............................................. 9 2.6. Test Facility........................................................................................................................... 10 2.7. Measurement Uncertainty (95% confidence levels, k=2) ..................................................... 10
3. POWER LINE CONDUCTED EMISSION TEST ........................................................ 11
3.1. Test Equipments.................................................................................................................... 11 3.2. Block Diagram of Test Setup ................................................................................................ 11 3.3. Power Line Conducted Emission Test Limits....................................................................... 11 3.4. Configuration of EUT on Test .............................................................................................. 11 3.5. Operating Condition of EUT................................................................................................. 12 3.6. Test Procedure....................................................................................................................... 12 3.7. Power Line Conducted Emission Test Results ..................................................................... 12
4. RADIATED EMISSION TEST........................................................................................ 14
4.1. Test Equipment ..................................................................................................................... 14 4.2. Block Diagram of Test Setup ................................................................................................ 15 4.3. Radiated Emission Limit ....................................................................................................... 16 4.4. EUT Configuration on Test................................................................................................... 17 4.5. Operating Condition of EUT................................................................................................. 17 4.6. Test Procedure....................................................................................................................... 17 4.7. Radiated Emission Test Results ............................................................................................ 19
5. BAND EDGE COMPLIANCE TEST.............................................................................. 50
5.1. Test Equipment ..................................................................................................................... 50 5.2. Limit ...................................................................................................................................... 50 5.3. Test Procedure ....................................................................................................................... 50 5.4. Test Results ........................................................................................................................... 50
6. 6dB &26dB & 99% Bandwidth Test ............................................................................... 75
6.1. Test Equipment ..................................................................................................................... 75 6.2. Limit ...................................................................................................................................... 75 6.3. Test Procedure....................................................................................................................... 75 6.4. Test Results ........................................................................................................................... 76
7. OUTPUT POWER TEST ................................................................................................. 86
7.1. Test Equipment ..................................................................................................................... 86 7.2. Limit ...................................................................................................................................... 86 7.3. Test Procedure....................................................................................................................... 86 7.4. Test Results ........................................................................................................................... 87
8. EQUIVALENT ISOTROPIC RADIATED POWER TEST ......................................... 99
8.1. Test Procedure....................................................................................................................... 99 8.2. Test Results ......................................................................................................................... 100
9. SPECTRAL DENSITY TEST........................................................................................102
9.1. Test Equipment ................................................................................................................... 102 9.2. Limit .................................................................................................................................... 102 9.3. Test Procedure..................................................................................................................... 102 9.4. Test Results ......................................................................................................................... 103

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 2 of 120

AUDIX Technology (Shenzhen) Co., Ltd.
FCC ID: 2AU3BU9W43
10. FREQUENCY STABILITY MEASUREMENT .......................................................... 113 10.1. Test Equipment ................................................................................................................... 113 10.2. Limit .................................................................................................................................... 113 10.3. Test Procedure..................................................................................................................... 113 10.4. Test Result........................................................................................................................... 114
11. ANTENNA REQUIREMENT........................................................................................119 11.1. Standard Applicable ............................................................................................................ 119 11.2. Antenna Connected Construction ....................................................................................... 119
12. DEVIATION TO TEST SPECIFICATIONS ............................................................... 120 Appendix A. Photograph of Test Appendix B. Photo of the EUT
Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 3 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

TEST REPORT

Applicant

 Funai Electric R & D (Shenzhen) Co., Ltd.

Manufacturer  Funai Electric R & D (Shenzhen) Co., Ltd.

Product

 WiFi module

FCC ID

 2AU3BU9W43

(A) Model No. (B) Serial No. (C) Test Voltage Tested for comply with: FCC CFR47 Part 15 Subpart E

: U9W43 : N/A : DC 5V From PC Input AC 120V/60Hz

Test procedure used: ANSI C63.10: 2020 KDB 789033 D02 v02r01

The device described above is tested by AUDIX TECHNOLOGY (SHENZHEN) CO., LTD. to confirm comply with all the FCC Part 15 Subpart E requirements. The test results are contained in this test report and AUDIX TECHNOLOGY (SHENZHEN) CO., LTD. is assumed full responsibility for the accuracy and completeness of these tests. Also, this report shows that the Equipment Under Test (EUT) is to be technically compliant with the FCC and IC requirements. This report contains data that are not covered by the NVLAP accreditation.

This Report is made under FCC Part 2.1075. No modifications were required during testing to bring this product into compliance.

This report applies to single evaluation of one sample of above mentioned product. This report shall not be reproduced in part without written approval of AUDIX TECHNOLOGY (SHENZHEN) CO., LTD.

The report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government.

Date of Test : Dec.09,2021~Jan.08,2022 Report of date:

Feb.28,2022

Prepared by :

Reviewed by :

Brave Zhang / Assistant

Sunny Lu / Deputy Manager

Approved & Authorized Signer :

David Jin / Deputy General Manager
Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 4 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

1. SUMMARY OF STANDARDS AND RESULTS

1.1.Description of Standards and Results

The EUT have been tested according to the applicable standards as referenced below.

EMISSION

Description of Test Item Power Line Conducted Emission
Radiated Emission Band Edge Compliance

Standard
FCC Part 15: 15.207 FCC Part 15: 15.407(b)(6)
FCC Part 15: 15.209 FCC Part 15: 15.205 FCC Part 15.407(b) FCC Part 15: 15.407(b)
FCC Part 15.205

Results PASS PASS PASS

6dB&26dB&99% Bandwidth Test

FCC Part 15: 15.407(e)

PASS

Output Power Test

FCC Part 15: 15.407(a)(5)

Equivalent Isotropic Radiated Power FCC Part 15: 15.407(h)(1)
Test

Power Spectral Density Test

FCC Part 15: 15.407(a)

PASS PASS PASS

Frequency Stability

FCC Part 15: 15.407(a)

PASS

Antenna requirement

FCC Part 15: 15.407(g)

PASS

Note: Measurement uncertainty affection to the result is considered, the EUT is technically compliant with standard requirements.

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 5 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

2. GENERAL INFORMATION

2.1.Description of Equipment Under Test

Applicant

Funai Electric R & D (Shenzhen) Co., Ltd.

Applicant Address

B303 Technology Building II, 1057 Nanhai Road, Nanshan District, Shenzhen, China 518067

Manufacturer

Funai Electric R & D (Shenzhen) Co., Ltd.

Manufacturer Address

B303 Technology Building II, 1057 Nanhai Road, Nanshan District, Shenzhen, China 518067

Factory

Funai (Thailand) Company Limited

Factory Address

835 Moo18, Pakchong-Lumsompung Road, Tambon, Chantuek, Amphur Pakchong, Nakhon Ratchasima 30130, Thailand

Product

WiFi module

Model No.

U9W43

FCC ID

2AU3BU9W43

Sample Type

Prototype production

Date of Receipt

Nov.30,2021

Date of Test

Dec.09,2021~Jan.08,2022

Remark: This report only for WIFI 5GHz.

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 6 of 120

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AUDIX Technology (Shenzhen) Co., Ltd.

2.2.Feature of Equipment Under Test

Product Feature & Specification

Product

WiFi module

Model No.

U9W43

Radio

IEEE802.11 a/b/g/n/ac

Commercial Power

AC 100 ~ 240V

Power Source

External Power Source Lithium battery

DC 5V DC V, mAh

UM battery

DC V

Bluetooth

Radio

Bluetooth V3.0+EDR; BLE

Frequency Range

2402-2480MHz

Type of Modulation

GFSK, /4DQPSK, 8DPSK

Data Rate

1Mbps, 2Mbps, 3Mbps

Quantity of Channels

79/40

Channel Separation

1MHz/2MHz

2.4GHz Wi-Fi

Support Modes

802.11b/g/n20/n40

Frequency Range

2412-2462MHz

Type of Modulation

802.11b(DSSS): CCK, QPSK, BPSK; 802.11g/n(OFDM): 64QAM,16QAM, QPSK, BPSK

Data Rate

802.11b: 1/2/5.5/11 Mbps; 802.11g: 6/9/12/18/24/36/48/54 Mbps; 802.11n: up to 300Mbps

Channel Separation

5MHz

5GHz Wi-Fi Support Modes

802.11a/n20/n40/ac20/ac40/ac80

Frequency Range

5180-5240MHz, 5745-5825MHz

Type of Modulation

802.11a/n (OFDM): QPSK, BPSK, 16QAM, 64QAM 802.11ac (OFDM): QPSK, BPSK, 16QAM, 64QAM,256QAM

Data Rate

802.11a: 6/9/12/18/24/36/48/54 Mbps; 802.11n: up to 300Mbps; 802.11ac: up to 867Mbps

Channel Separation

5MHz

Antenna System Type of Antenna Antenna Peak Gain

Bluetooth Antenna: External PCB Antenna WIFI Antenna: monopole Antenna Bluetooth Peak Gain: -0.42dBi DTS Band (2400-2483.5MHz) Peak Gain: ANT A: -1.04dBi; ANT B: -2.61dBi. U-NII-1 Band(5150-5250MHz) Peak Gain: ANT A: 1.42dBi; ANT B: 1.25dBi. U-NII-3 Band (5725-5850MHz) Peak Gain: ANT A: 0.98dBi; ANT B: -0.28dBi.

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 7 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

2.3.Test Information

A special test software(MT7663, V0.0.2.6) was used to control EUT work in Continuous TX

mode, and select test channel, wireless mode, power setting and data rate.

Tested mode, channel, power setting and data rate information

Mode

data rate (Mbps)(see
Note)

Channel

Frequency (MHz)

Power setting

6

Low :CH36

5180

Default

6

Middle: CH40

5200

Default

IEEE 802.11a

6 6

High: CH48 Low :CH149

5240 5745

Default Default

6

Middle: CH157

5785

Default

6

High: CH165

5825

Default

MCS0

Low :CH36

5180

Default

MCS0

Middle: CH40

5200

Default

IEEE

MCS0

High: CH48

5240

Default

802.11nHT20

MCS0

Low :CH149

5745

Default

MCS0

Middle: CH157

5785

Default

MCS0

High: CH165

5825

Default

MCS0

Low :CH38

5190

Default

IEEE

MCS0

High: CH46

5230

Default

802.11nHT40

MCS0

Low :CH151

5755

Default

MCS0

High: CH159

5795

Default

MCS0

Low :CH36

5180

Default

MCS0

Middle: CH40

5200

Default

IEEE

MCS0

High: CH48

5240

Default

802.11acVHT20

MCS0

Low :CH149

5745

Default

MCS0

Middle: CH157

5785

Default

MCS0

High: CH165

5825

Default

MCS0

Low :CH38

5190

Default

IEEE

MCS0

High: CH46

5230

Default

802.11acVHT40

MCS0

Low :CH151

5755

Default

MCS0

High: CH159

5795

Default

IEEE

MCS0

CH42

5210

Default

802.11acVHT80

MCS0

CH155

5775

Default

Note: 1. According exploratory test, EUT will have maximum output power in those data rate,

so those data rate were used for all test. 2. This device support SISO and MIMO mode, test compliance with KDB662911

for11n and 11ac mode, radiated emission and bandedge test use MIMO mode which

has the worst case emission,11a only support SISO mode, test with the antenna which

has the maximum output power.

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 8 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

2.4.Tested Supporting System Details

No. Description

ACS No.

Manufacturer Model Serial Number

N/A

acer

ZOW

1.

Notebook

USB Cable: Shielded, Detachable, 1.0m

NVX7C

2.5.Block diagram of connection between the EUT and simulators

Notebook

EUT

(EUT: WiFi module)

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 9 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

2.6. Test Facility
Site Description Name of Firm
EMC Lab.

Audix Technology (Shenzhen) Co., Ltd. : No. 6, Kefeng Road, Science & Technology Park,
Nanshan District , Shenzhen, Guangdong, China

Certificated by ISED, Canada

:

Company Number: 5183A CAB identifier: CN0034

Valid Date: Mar.31, 2022

Certificated by FCC, USA : Designation No.: CN5022
Valid Date: Mar.31, 2022

Accredited by NVLAP, USA : NVLAP Code: 200372-0
Valid Date: Mar.31, 2022

2.7. Measurement Uncertainty (95% confidence levels, k=2)

Test Item Uncertainty for Conduction emission test
in No. 1 Conduction
Uncertainty for Radiation Emission test in 3m chamber
Uncertainty for Radiation Emission test in 3m chamber

Uncertainty
2.6dB(150KHz to 30MHz)
3.2dB(30~200MHz, Polarization: H) 3.6dB(30~200MHz, Polarization: V) 3.4dB(200M~1GHz, Polarization: H) 3.4dB(200M~1GHz, Polarization: V)
5.0dB(1~6GHz, Distance: 3m) 5.2dB(6~25GHz, Distance: 3m)

Uncertainty for Radiated Spurious Emission test in RF chamber

3.7dB (30MHz~1000MHz) 3.3dB (1GHz~26.5MHz)

Uncertainty for Conduction Spurious emission test
Uncertainty for Output power test Uncertainty for Bandwidth test Uncertainty for DC power test
Uncertainty for test site temperature and humidity

2.0dB
0.8dB 83 kHz 1.0% 0.6
3%

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 10 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

3. POWER LINE CONDUCTED EMISSION TEST

3.1.Test Equipments

Item

Equipment

Manufacturer

Model No.

1. 1# Shielding Room

AUDIX

2. EMI Test Receiver Rohde & Schwarz

3.

L.I.S.N.#1

Rohde & Schwarz

4.

A.M.N

Kyoritsu

5.

Terminator

6.

Terminator

Hubersuhner Hubersuhner

7.

RF Cable

EMCI

8.

Test Software

AUDIX

Note: N/A means Not applicable.

N/A ESCI ENV216
KNW-403D
50 50 EMCCFD300BM-NM-2000 e3

Serial No.
N/A 100842 102160 8-1750-2
No.1 No.2
190422
6.100913a

Last Cal.
May.17,18 Apr.07,21 Oct.09,21 Apr.07,21 Apr.06,21 Apr.06,21
Apr.08,21
N/A

Cal. Interval 5 Year 1 Year 1 Year 1 Year 1 Year 1 Year
1 Year
N/A

3.2.Block Diagram of Test Setup

PC System

Receiver

EUT

Peripheral

80cm

0.8m

LISN#1

A.M.N

:50 Terminator

3.3.Power Line Conducted Emission Test Limits

Maximum RF Line Voltage

Frequency

Quasi-Peak Level

Average Level

dB(V)

dB(V)

150kHz ~ 500kHz

66 ~ 56*

56 ~ 46*

500kHz ~ 5MHz

56

46

5MHz ~ 30MHz

60

50

Notes: 1. * Decreasing linearly with logarithm of frequency.

2. The lower limit shall apply at the transition frequencies.

3.4.Configuration of EUT on Test

The following equipment are installed on Power Line Conducted Emission Test to meet the commission requirement and operating regulations in a manner which tends to maximize its emission characteristics in a normal application.

3.4.1. WiFi module (EUT)

Model No. Serial No.

: U9W43 : N/A

3.4.2. Support Equipment: As Tested Supporting System Details, in Section 2.2.

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 11 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

3.5.Operating Condition of EUT
3.5.1. Setup the EUT as shown as Section 3.2.
3.5.2. Turn on the power of EUT.
3.5.3. PC run test software to control EUT work in Tx mode.
3.6.Test Procedure
The EUT was placed on a non-metallic table, 80cm above the ground plane. The EUT Power Via AC unit connected to the power mains through a line impedance stabilization network (L.I.S.N. #1). This provides a 50 ohm coupling impedance for the EUT (Please refer the block diagram of the test setup and photographs). The AC line are checked to find out the maximum conducted emission. In order to find the maximum emission levels, the relative positions of equipment and all of the interface cables shall be changed according to ANSI C63.10 on Conducted Emission Test.

The bandwidth of test receiver (R & S ESCI) is set at 9kHz.

The frequency range from 150kHz to 30MHz is checked.

3.7.Power Line Conducted Emission Test Results
PASS. (All emissions not reported below are too low against the prescribed limits.)

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AUDIX Technology (Shenzhen) Co., Ltd.

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 13 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.

4. RADIATED EMISSION TEST

4.1.Test Equipment

4.1.1.For frequency range 30 MHz ~1000MHz (In 3m Anechoic Chamber)

Item

Equipment

Manufacturer

Model No. Serial No. Last Cal.

1. 3#Chamber(NSA)

AUDIX

N/A

N/A

2. 3#Chamber(SE)

AUDIX

N/A

N/A

3. Signal Analyzer Rohde & Schwarz

FSV30

104050

4. EMI Test Receiver Rohde & Schwarz

ESR3

102891

5.

Amplifier

HP

8447D

2944A11159

6.

Tri-log-Broadband Antenna

SCHWARZBECK

VULB 9168

710

7.

NSA Cable

HUBER+SUHNER CFD400NL-LW No.3

8.

Coaxial Switch

Anritsu

MP59B

6201397223

9.

Test Software

AUDIX

e3

6.100913a

Note: N/A means Not applicable.

May.02,21 May.17,18 Apr.07,21 Oct.20,21 Apr.07,21
Dec.13,21
Oct.09,21 Apr.07,21
N/A

Cal. Interval 1 Year 5 Year 1 Year 1 Year 1 Year
1 Year
1 Year 1 Year N/A

4.1.2.For frequency range 1GHz~40GHz (In 3m Anechoic Chamber)

Item

Equipment

Manufacturer

Model No.

Serial No.

1. 3#Chamber(Svswr)

AUDIX

N/A

N/A

2.

3#Chamber(SE)

AUDIX

N/A

3.

Signal Analyzer Rohde & Schwarz FSV30

4.

Horn Antenna

ETC

MCTD 1209

5.

Horn Antenna

ETS

3116

6.

Amplifier

Agilent

83017A

7.

Amplifier

EMCI

EMC184040SE

8.

RF Cable

EMCI

EMC104-SM-S M-15000

9.

Test Software

AUDIX

e3

Note: N/A means Not applicable.

N/A 104050 DRH15F03006 00060089 MY53270084 980507
190407
6.100913a

Last Cal.
Apr.14,21 May.17,18 Apr.07,21 Jul.26,21 Jan.08,22 Oct.09,21 Apr.08,21
Jul.14,21
N/A

Cal. Interval 1 Year
5 Year 1 Year 1 Year 1 Year 1 Year 1 Year
1 Year
N/A

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 14 of 120

FCC ID: 2AU3BU9W43
4.2.Block Diagram of Test Setup
For frequency range 30MHz-1000MHz

AUDIX Technology (Shenzhen) Co., Ltd.

Semi-anechoic 3m Chamber

ANTENNA ELEVATION VARIES FROM 1 TO 4 METERS
3.0m

(Reference Point)

EUT

2.0m(L)*1.0m(W)*0.8m(H)

TURN TABLE (FIBRE GLASS)

0.8m

Coaxial Switch Receiver

AMP Spectrum Analyzer PC System

For frequency range 1GHz-40GHz
Full-anechoic 3m Chamber
ANTENNA ELEVATION VARIES FROM 1 TO 4 METERS.

3m (Reference Point)

EUT

1.0m(L)*1.0m(W)*1.5m(H)
ABSORBER (30cm maximum)

TURN TABLE (FIBRE GLASS)

(30cm)

AMP Spectrum Analyzer PC System

1.5m

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AUDIX Technology (Shenzhen) Co., Ltd.

4.3.Radiated Emission Limit

For transmitters operating in the 5.15-5.25 GHz band: All emissions outside of the 5.15-5.35 GHz band shall not exceed an e.i.r.p. of -27 dBm/MHz.

For transmitters operating in the 5.725-5.85 GHz band: All emissions shall be limited to a level of -27 dBm/MHz at 75 MHz or more above or below the band edge increasing linearly to10 dBm/MHz at 25 MHz above or below the band edge, and from 25 MHz above or below the band edge increasing linearly to a level of15.6 dBm/MHz at 5 MHz above or below the band edge, and from 5 MHz above or below the band edge increasing linearly to a level of27 dBm/MHz at the band edge.

Unwanted emissions below 1 GHz and those emissions appearing within 15.205 restricted frequency bands must comply with the general field strength limits set forth in Section 15.209.

4.3.1.15.209 limits

FREQUENCY

DISTANCE

FIELD STRENGTHS LIMIT

MHz

Meters

V/m

dB(V)/m

30 ~ 88

3

100

40.0

88 ~ 216

3

150

43.5

216 ~ 960

3

200

46.0

960 ~ 1000

3

500

54.0

Above 1000

3

74.0 dB(V)/m (Peak)

54.0 dB(V)/m (Average) Remarks(1) Emission level dBV = 20 log Emission level V/m

(2) The smaller limit shall apply at the cross point between two frequency bands.

(3) Distance is the distance in meters between the measuring instrument, antenna

and the closest point of any part of the device or system.

4.3.2.15.205 Restricted bands of operation

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 16 of 120

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AUDIX Technology (Shenzhen) Co., Ltd.

4.4.EUT Configuration on Test
The following equipment are installed on Power Line Conducted Emission Test to meet the commission requirement and operating regulations in a manner which tends to maximize its emission characteristics in a normal application. 4.4.1.WiFi module (EUT)
Model No. : U9W43 Serial No. : N/A 4.4.2.Support Equipment: As Tested Supporting System Details, in Section 2.2.
4.5.Operating Condition of EUT
4.5.1.Setup the EUT and simulator as shown as Section 4.2.
4.5.2.Turn on the power of all equipments.
4.5.3.Let EUT work in Tx mode.
4.6.Test Procedure
Frequency below 30MHz: The EUT setup on the turn table which has 0.8 m height to the ground. The turn table rotated 360 degrees and antenna fixed to 1 m to find the maximum emission level. In order to find the maximum emission, all of the interface cables were manipulated according to ANSI C63.10 regulation. EUT and its simulators are placed on a turn table, which is 0.8 meter high above ground for frequency 30MHz~1000MHz, 1.5 meter high above ground for frequency above 1GHz and put the absorbing with 2.4m(L)*2.4m(W)*0.3m(H) on the ground . The turn table can rotate 360 degrees to determine the position of the maximum emission level. Power on the EUT and let it working in test mode, then test it.EUT is set 3 meters away from the receiving antenna, which is mounted on a antenna tower. The antenna can be moved up and down between 1 meter and 4 meters to find out the maximum emission level. Broadband antenna (calibrated bilog antenna) is used as receiving antenna for frequency 30MHz~1000MHz, and the Horm antenna is used as receiving antenna for frequency above 1GHz. Both horizontal and vertical polarization of the antenna is set on Test. In order to find the maximum emission levels, all of the interface cables must be manipulated according to ANSI C63.10 on radiated emission Test. For emissions below 1GHz and those emissions appearing within 15.205 restricted frequency bands use below procedure:
This test was performed with EUT in X, Y, Z position, and the worse case was found when EUT in X position as test photo indicated.
The bandwidth of the EMI test receiver (R&S ESR7) is set at 120kHz for frequency range from 30MHz to 1000 MHz.

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Maximum Peak emission levels are measured by setting the analyzer as follows: (a) RBW = 1 MHz. (b) VBW  3 MHz. (c) Detector = Peak. (d) Sweep time = auto. (e) Trace mode = max hold. (f) Allow sweeps to continue until the trace stabilizes. Note that if the transmission is not
continuous, the time required for the trace to stabilize will increase by a factor of approximately 1/x, where x is the duty cycle. For example, at 50% duty cycle, the measurement time will increase by a factor of two relative to measurement time for continuous transmission. Maximum Average emission levels are measured by setting the analyzer as follows: (a) RBW = 1 MHz. (b) VBW  3 MHz. (c) Detector = power averaging (rms), if span/(# of points in sweep)  RBW/2. Satisfying this condition may require increasing the number of points in the sweep or reducing the span. If the condition is not satisfied, the detector mode shall be set to peak. (d) Averaging type = power averaging (rms) As an alternative, the detector and averaging type may be set for linear voltage averaging. Some instruments require linear display mode to use linear voltage averaging. Log or dB averaging shall not be used. (e) Sweep time = auto. (f) Perform a trace average of at least 100 traces if the transmission is continuous. If the transmission is not continuous, the number of traces shall be increased by a factor of 1/x, where x is the duty cycle. For example, with 50% duty cycle, at least 200 traces shall be averaged. (If a specific emission is demonstrated to be continuous--i.e., 100% duty cycle--rather than turning on and off with the transmit cycle, at least 100 traces shall be averaged.) (g) If tests are performed with the EUT transmitting at a duty cycle less than 98%, a correction factor shall be added to the measurement results prior to comparing to the emission limit to compute the emission level that would have been measured had the test been performed at 100% duty cycle. The correction factor is computed as follows:  If power averaging (rms) mode was used in step (iv) above, the correction factor is 10
log (1/x), where x is the duty cycle. For example, if the transmit duty cycle was 50%, then 3 dB must be added to the measured emission levels.  If linear voltage averaging mode was used in step (iv) above, the correction factor is 20 log (1/x), where x is the duty cycle. For example, if the transmit duty cycle was 50%, then 6 dB must be added to the measured emission levels.  If a specific emission is demonstrated to be continuous (100% duty cycle) rather than turning on and off with the transmit cycle, no duty cycle correction is required for that emission.

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For the emissions above 1GHz and not appearing within 15.205 restricted frequency bands use below procedure: (1).The maximum emission at 3m distance was measured and recorded with receive antenna
in both vertical and horizontal by rotating the turntable and by lowering the receive antenna. (2).The EUT was then removed and replaced with a substitution antenna in the same position and the substitution antenna must have the same polarization with the receive antenna. (3). A signal which have the same frequency obtained in step 2 was fed to the substitution, the receive antenna was raised and lowered to obtain a maximum reading at the test receiver, the level of the signal generator was adjusted until the measured field strength level in step 2 was obtained, recorded the level of the signal generator. (4).Repeated step 4 with both antenna polarizations (5).The spurious emissions is equal to the power supplied by the signal generator and corrections due to the gain of the substitution antenna and the cable loss between the signal generator and the substitution antenna. or use procedure (6). (6). Per KDB789033 clause H 2)d).if the test distance is 3m,the EIRP(dBm)=E(dBuv/m)-95.2 Get the result of all unwanted emission outside the restricted band is less than the -27dBm/MHz. We had checked frequency range that is 30MHz to 10th harmonic (40GHz) and no any emissions were found from 18GHz to 40GHz, so the radiated emission from 18GHz to 40GHz were not record.

4.7.Radiated Emission Test Results

PASS. All the emissions from 30MHz to 1 GHz were comply with 15.209 limits. All other emission comply with 15.407 (b)(1) requirements. Note: The emissions (9kHz~30MHz) not reported for there is no emission be found.

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Duty cycle U-NII-1 Band:

AUDIX Technology (Shenzhen) Co., Ltd.

Note: The duty cycle of the test signal is 100%. U-NII-3 Band:

Note: The duty cycle of the test signal is 100%.
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Frequency: 30MHz~1GHz

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Frequency: 1GHz~18GHz U-NII-1 Band:

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U-NII-3 Band:

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5. BAND EDGE COMPLIANCE TEST

5.1.Test Equipment

Item

Equipment

Manufacturer

1. PXA Signal Analyzer Agilent

2.

Amplifier

Agilent

3.

Horn Antenna

ETC

4.

RF Cable

HUBER+SU HNER

Model No. N9030A 8449B MCTD 1209
SUCOFLEX-106

Serial No.

Last Cal.

Cal. Interval

MY51380221 Apr.07,21 1 Year

3008A02495 Apr.07,21 1 Year

DRH15F03006 Jul.26,21 1 Year

505238/6 Apr.07,21 1 Year

5.2. Limit

For transmitters operating in the band 5150-5250 MHz, all emissions outside the band 5150-5250 MHz shall not exceed -27 dBm/MHz e.i.r.p.

For transmitters operating in the 5.725-5.85 GHz band:All emissions shall be limited to a level of -27 dBm/MHz at 75 MHz or more above or below the band edge increasing linearly to 10 dBm/MHz at 25 MHz above or below the band edge, and from 25 MHz above or below the band edge increasing linearly to a level of 15.6 dBm/MHz at 5 MHz above or below the band edge, and from 5 MHz above or below the band edge increasing linearly to a level of 27 dBm/MHz at the band edge..

5.3.Test Procedure
1. The EUT is placed on a turntable, which is 1.5m above the ground plane and worked at highest radiated power.
2. The turntable was rotated for 360 degrees to determine the position of maximum emission level.
3. EUT is set 3m away from the receiving antenna, which is varied from 1m to 4m to find out the highest emission.
4. Set the spectrum analyzer in the following setting in order to capture the lower and upper band-edges of the emission: (a) PEAK: RBW=1MHz; VBW=3MHz; Sweep=AUTO (b) AVERAGE: RBW=1MHz; VBW=10Hz; Sweep=AUTO
5. Per KDB789033 clause H 2)d).if the test distance is 3m,the EIRP(dBm)=E(dBuv/m)-95.2 Get the final compare with limit.

5.4.Test Results Pass (The testing data was attached in the next pages.)

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6. 6dB &26dB & 99% Bandwidth Test

6.1.Test Equipment

Item Equipment Manufacturer Model No.

Serial No. Last Cal. Cal. Interval

1.

PXA Signal Analyzer

Agilent

N9030A

MY51380221 Apr.07,21 1 Year

2.

Attenuator

Agilent

8491B

MY39269201 Oct.09,21 1 Year

3.

RF Cable

HUBER+SUH NER

SUCOFLEX-106

505238/6

Apr.07,21

1 Year

6.2. Limit
6dB Bandwidth should be not less than 500kHz
6.3.Test Procedure
26dB Bandwidth: Use the test method descried in ANSI C63.10 clause 12.4.1: (a) Set RBW = approximately 1% of the emission bandwidth. (b) Set the VBW > RBW. (c) Detector = Peak. (d) Trace mode = max hold. (e) Measure the maximum width of the emission that is 26 dB down from the maximum of the
emission. Compare this with the RBW setting of the analyzer. Readjust RBW and repeat measurement as needed until the RBW/EBW ratio is approximately 1%.
6dB Bandwidth: Use the test method descried in 789033 D02 v02r01: Section 15.407(e) specifies the minimum 6 dB emission bandwidth of at least 500 kHz for the band 5.725-5.85 GHz. The following procedure shall be used for measuring this bandwidth: (a) Set RBW = 100 kHz. (b) Set the video bandwidth (VBW)  3 RBW. (c) Detector = Peak. (d) Trace mode = max hold (e) Sweep = auto couple (f) Allow the trace to stabilize (g) Measure the maximum width of the emission that is constrained by the frequencies
associated with the two outermost amplitude points (upper and lower frequencies) that are attenuated by 6 dB relative to the maximum level measured in the fundamental emission
Note: The automatic bandwidth measurement capability of a spectrum analyzer or EMI receiver may be employed if it implements the functionality described in this section. For devices that use channel aggregation refer to III.A and III.C for determining emission bandwidth.

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99% Occupied bandwidth: Use the test method descried in ANSI C63.10 Section 6.9.2: The occupied bandwidth is the frequency bandwidth such that, below its lower and above its upper frequency limits, the mean powers are each equal to 0.5% of the total mean power of the given emission. The following procedure shall be used for measuring 99% power bandwidth: a) The instrument center frequency is set to the nominal EUT channel center frequency. The
frequency span for the spectrum analyzer shall be between 1.5 times and 5.0 times the OBW. b) The nominal IF filter bandwidth (3 dB RBW) shall be in the range of 1% to 5% of the OBW,
and VBW shall be approximately three times the RBW, unless otherwise specified by the applicable requirement. c) Set the reference level of the instrument as required, keeping the signal from exceeding the maximum input mixer level for linear operation. In general, the peak of the spectral envelope shall be more than [10 log (OBW/RBW)] below the reference level. Specific guidance is given in 4.1.5.2. d) Step a) through step c) might require iteration to adjust within the specified range. e) Video averaging is not permitted. Where practical, a sample detection and single sweep mode shall be used. Otherwise, peak detection and max hold mode (until the trace stabilizes) shall be used. f) Use the 99% power bandwidth function of the instrument (if available) and report the measured bandwidth. g) If the instrument does not have a 99% power bandwidth function, then the trace data points are recovered and directly summed in linear power terms. The recovered amplitude data points, beginning at the lowest frequency, are placed in a running sum until 0.5% of the total is reached; that frequency is recorded as the lower frequency. The process is repeated until 99.5% of the total is reached; that frequency is recorded as the upper frequency. The 99% power bandwidth is the difference between these two frequencies. h) The occupied bandwidth shall be reported by providing plot(s) of the measuring instrument display; the plot axes and the scale units per division shall be clearly labeled. Tabular data may be reported in addition to the plot(s).
6.4.Test Results

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U-NII-1 Band: EUT: WiFi module M/N: U9W43 Test date: 2021-12-22 Tested by: Winter

Pressure: 102.4±1.0 kpa Test site: RF site

Humidity: 51.4±3.0% Temperature:22.1±0.6 

26dB bandwidth:

Test Mode

Frequency MHz

5180

11a

5200

5240

11n HT20

5180 5200 5240

11n

5190

HT40

5230

11ac VHT20

5180 5200 5240

11ac

5190

VHT40

5230

11ac VHT80

5210

Conclusion: PASS

26dB Bandwidth

(MHz)

ANT A

ANT B

20.10

20.18

20.26

20.50

20.44

20.46

20.16

20.00

19.96

19.90

20.09

19.77

39.22

39.12

39.15

39.26

19.99

20.01

20.04

20.00

20.09

20.13

40.79

39.14

40.83

39.13

80.69

80.35

Limit (kHz)
N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
N/A

99% Occupied bandwidth:

Test Mode

Frequency MHz

5180

11a

5200

5240

11n HT20

5180 5200 5240

11n

5190

HT40

5230

11ac VHT20

5180 5200 5240

11ac

5190

VHT40

5230

11ac VHT80

5210

Conclusion: PASS

99% bandwidth (MHz)

ANT A

ANT B

16.501

16.550

16.561

16.627

16.554

16.624

17.610

17.589

17.580

17.578

17.568

17.570

36.032

35.982

36.014

36.023

17.594

17.617

17.587

17.615

17.585

17.581

36.051

36.012

36.035

36.006

75.466

75.454

Limit (kHz) N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
N/A

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Pressure: 101.1±1.0 kpa Test site: RF site

Humidity: 52.5±3.0% Temperature:22.1±0.2

6dB bandwidth:

Test Mode

Frequency MHz

11a
11n HT20
11n HT40
11ac VHT20
11ac VHT40
11ac VHT80 Conclusion: PASS

5745 5785 5825 5745 5785 5825 5755 5795 5745 5785 5825 5755 5795
5775

26dB bandwidth:

Test Mode

Frequency MHz

11a
11n HT20
11n HT40
11ac VHT20
11ac VHT40
11ac VHT80 Conclusion: PASS

5745 5785 5825 5745 5785 5825 5755 5795 5745 5785 5825 5755 5795
5775

6dB Bandwidth (MHz)

ANT A

ANT B

16.46

16.44

16.38

16.41

16.45

16.28

17.62

17.64

17.07

17.21

17.64

17.59

36.26

36.47

35.75

36.39

17.67

17.68

17.74

17.24

17.67

17.61

36.01

36.36

36.39

35.67

76.49

76.52

26dB Bandwidth

(MHz)

ANT A

ANT B

19.57

19.42

19.52

19.60

19.66

19.07

19.83

19.89

19.83

19.90

19.94

19.81

39.45

39.97

39.96

40.39

19.88

19.83

19.86

19.97

19.66

19.90

39.78

39.77

39.80

39.74

80.43

79.90

Limit (kHz)
500 500 500 500 500 500 500 500 500 500 500 500 500
500
Limit (KHz)
N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
N/A

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99% Occupied bandwidth:

Test Mode

Frequency MHz

11a
11n HT20
11n HT40
11ac VHT20
11ac VHT40
11ac VHT80 Conclusion: PASS

5745 5785 5825 5745 5785 5825 5755 5795 5745 5785 5825 5755 5795
5775

AUDIX Technology (Shenzhen) Co., Ltd.

99% bandwidth MHz

ANT A
16.428 16.430 16.432 17.597 17.614 17.615 35.967 36.050 17.602 17.601 17.601 36.038 36.043

ANT B
16.392 16.398 16.394 17.606 17.626 17.584 35.948 35.982 17.551 17.612 17.606 36.068 36.001

75.453

75.430

Limit (kHz)
N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
N/A

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26dB bandwidth & 99% Occupied bandwidth U-NII-1 Band ANT A IEEE 802.11a

IEEE 802.11n HT20

IEEE 802.11n HT40

---

---

IEEE 802.11ac VHT20

IEEE 802.11ac VHT40

IEEE 802.11ac VHT80

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ANT B IEEE 802.11a

IEEE 802.11n HT20

IEEE 802.11n HT40

---

---

IEEE 802.11ac VHT20

IEEE 802.11ac VHT40

IEEE 802.11ac VHT80

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6dB bandwidth U-NII-3 Band
ANT A IEEE 802.11a

IEEE 802.11n HT20

IEEE 802.11n HT40

---

---

IEEE 802.11ac VHT20

IEEE 802.11ac VHT40

IEEE 802.11ac VHT80

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 82 of 120

FCC ID: 2AU3BU9W43

AUDIX Technology (Shenzhen) Co., Ltd.
ANT B IEEE 802.11a

IEEE 802.11n HT20

IEEE 802.11n HT40

---

---

IEEE 802.11ac VHT20

IEEE 802.11ac VHT40

IEEE 802.11ac VHT80

Audix Technology (Shenzhen) Co., Ltd. Report No. ACS-F22010 Page 83 of 120



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