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Dongguan Yexun Electronic Technology Co,Ltd YXDZ-007 2BB48YXDZ-007 2BB48YXDZ007 yxdz 007

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FCC Test Report
Report No: FCS202307132W02 Issued for

Applicant:

Dongguan Yexun Electronic Technology Co,Ltd

Address:

Room 201, Unit 1, Building 2, No.8 Hetangang Road, Humen Town, Dongguan, Guangdong, P.R.China

Product Name:

BATTERY POWERED BLUETOOTH SPEAKER

Brand Name:

DTEZTECH, Hiesuan, Hipoke, WaxPar, YEX-BUR, Taingwei, Giqtxpz, Zinkiwayr, GerttilyonAdisipsoarinpofgvtwny
Byutrcfuy BeytvyowGrvodfrtamewryytuoJhjqzcyg
HXHDLQYXXudzExag

Model Name:

YXDZ-007

Series Model:

YXDZ-007-MT,YXDZ-007-DW,YXDZ-007-ML, YXDZ-007-BS,YXDZ-007-RYO, YXDZ-007-BD, YXDZ-007-CRA

FCC ID:

2BB48YXDZ-007

Issued By: Flux Compliance Service Laboratory Add: Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech
Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com

Page 2 of 31

Report No.:FCS202307132W02

TEST RESULT CERTIFICATION Applicant's Name...................... : Dongguan Yexun Electronic Technology Co,Ltd

Address...................................... :

Room 201, Unit 1, Building 2, No.8 Hetangang Road, Humen Town, Dongguan, Guangdong, P.R.China

Manufacture's Name................ : Dongguan Yexun Electronic Technology Co,Ltd

Address...................................... :

Room 201, Unit 1, Building 2, No.8 Hetangang Road, Humen Town, Dongguan, Guangdong, P.R.China

Product Description Product Name........................... : Brand Name .............................: Model Name.............................. :
Series Model..............................:

BATTERY POWERED BLUETOOTH SPEAKER
DTEZTECH, Hiesuan, Hipoke, WaxPar, YEX-BUR, Taingwei, Giqtxpz, Zinkiwayr, GerttilyonAdisipsoarinpofgvtwnyByutrcfuy Beytvyow
GYXrvDodZf-r0ta07mewryytuoJhjqzcygHXHDLQYXXudzExag
YXDZ-007-MT,YXDZ-007-DW,YXDZ-007-ML,YXDZ-007-BS, YXDZ-007-RYO, YXDZ-007-BD, YXDZ-007-CRA

Test Standards..........................: FCC Rules and Regulations Part 15 Subpart C, Section 249

Test Procedure..........................: ANSI C63.10:2013

This device described above has been tested FCS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of FCS, this document may be altered or revised by FCS, personal only, and shall be noted in the revision of the document..
Date of Test..................................: Date (s) of performance of tests. : July 15, 2023 ~ July 19, 2023
Date of Issue.................................: July 19 , 2023
Test Result.................................... : Pass

Tested by

Reviewed by

Approved by

(Scott Shen) (Duke Qian)

(Jack Wang)
Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com

Page 3 of 31

Report No.:FCS202307132W02

Table of Contents

Page

1. SUMMARY OF TEST RESULTS

1.1 TEST FACTORY

1.2 MEASUREMENT UNCERTAINTY

2. GENERAL INFORMATION

2.1 GENERAL DESCRIPTION OF THE EUT

2.2 DESCRIPTION OF THE TEST MODES

2.3 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 10

2.4 EQUIPMENTS LIST

3 CONDUCTED EMISSION MEASUREMENT

3.1 LIMIT

3.2 TEST PROCEDURE

3.3 TEST SETUP

3.4 TEST RESULTS

4. RADIATED EMISSION MEASUREMENT

4.1 LIMIT

4.2 TEST PROCEDURE

4.3 TEST SETUP

4.4 TEST RESULTS

5. BAND EDGE TEST

5.1 LIMIT

5.2 TEST PROCEDURE

5.3 TEST SETUP

5.4 TEST RESULTS

6. 20 DB BANDWIDTH TEST

6.1 LIMIT

6.2 TEST PROCEDURE

6.3 TEST SETUP

6.4 TEST RESULTS

7. ANTENNA REQUIREMENT

7.1 STANDARD REQUIREMENT

7.2 EUT ANTENNA

Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com

Rev. 00

Page 4 of 31

Report No.:FCS202307132W02

Revision History

Issue Date July 19, 2023

Effect Page N/A

Contents Initial Issue

Page 5 of 31

Report No.:FCS202307132W02

1. SUMMARY OF TEST RESULTS

Standard Section 15.207 15.205(a), 15.209(a), 15.249(a), 15.249(c) 15.209
15.249(d)
15.215(c)
15.203

FCC Part 15.249,Subpart C

Test Item Conducted Emission Radiated Spurious Emission Field strength of fundamental Band Edge Emission
20dB Bandwidth Antenna Requirement

Judgment PASS PASS PASS PASS PASS PASS

Remark -------

NOTE: (1)" N/A" denotes test is not applicable in this Test Report (2) All tests are according to ANSI C63.10-2013

Page 6 of 31

Report No.:FCS202307132W02

1.1 TEST FACTORY

Company Name: Flux Compliance Service Laboratory

Address:

Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan

Telephone:

+86-769-27280901

Fax:

+86-769-27280901

Laboray Accreditations
FCC Test Firm Registration Number: 514908 CNAS Number L15566 Designation numberCN0127 A2LA accreditation number5545.01 ISED Number25801 CAB ID: CN0097 http://www.fcs-lab.com

1.2 MEASUREMENT UNCERTAINTY
The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %.

No.

Item

Uncertainty

RF output power, conducted

±0.71dB

Unwanted Emissions, conducted

±2.98 dB

Conducted Emission (9KHz-150KHz)

±4.13 dB

All emissions radiated (9KHz -30MHz)

±3.1 dB

Conducted Emission (150KHz-30MHz)

±4.74 dB

All emissions,radiated(<1G) 30MHz-1000MHz

±3.2 dB

All emissions,radiated (1GHz -18GHz)

±3.66 dB

All emissions,radiated (18GHz -40GHz)

±4.31 dB

Occupied bandwidth

±0.3 dB

PSD

±0.4 dB

Page 7 of 31

Report No.:FCS202307132W02

2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF THE EUT

Product Name Trade Name Model Name Series Model
Model Difference
Channel List BT Power Supply Battery

BATTERY POWERED BLUETOOTH SPEAKER
DTEZTECH, Hiesuan, Hipoke, WaxPar, YEX-BUR, Taingwei, Giqtxpz, Zinkiwayr, GerttilyonAdisipsoarinpofgvtwny Byutrcfuy BeytvyowGrvodfrtamewryytuoJhjqzcyg HXHDLQYXXudzExag
YXDZ-007
YXDZ-007-MT,YXDZ-007-DW,YXDZ-007-ML, YXDZ-007-BS,YXDZ-007-RYO, YXDZ-007-BD, YXDZ-007-CRA We (Dongguan Yexun Electronic Technology Co,Ltd) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model name and appearance color.
Please refer to the Note 2.
Frequency:2402-2480MHz Modulation: GFSK Data rate: 1Mbps Channel number: 40CH Type of antenna:Chip antenna PCB antenna Input:DC 20V by Battery output: DC5V2.1A(USB/TYPE-C)
Li-ion 20V MAX 4.0Ah 80Wh

Number of samples

FCS202371328W02

Hardware version number M1828BPL-01A REV2.2 M1828BPL-01B REV2.0

Software version number exqtibmldsvwius7 1.0.2

Connecting I/O Port(s)

Please refer to the User's Manual

Note: 1. For a more detailed features description, please refer to the manufacturer's specifications or the User's Manual.

Page 8 of 31

Report No.:FCS202307132W02

2. Channel List

Channel Freq.(MHz)

2402

2404

2406

2408

2410

2412

2414

2416

2418

2420

Channel
11 12 13 14 15 16 17 18 19 20

Freq.(MHz)
2422 2424 2426 2428 2430 2432 2434 2436 2438 2440

Channel
21 22 23 24 25 26 27 28 29 30

Freq.(MHz)
2442 2444 2446 2448 2450 2452 2454 2456 2458 2460

Channel
31 32 33 34 35 36 37 38 39 40

Freq.(MHz)
2462 2464 2466 2468 2470 2472 2474 2476 2478 2480

3. Table for Filed Antenna

Ant.

Brand

Model Name
N/A

Antenna Type Connector Gain (dBi)

PCB Antenna N/A

-0.68

NOTE Antenna

Page 9 of 31

Report No.:FCS202307132W02

2.2 DESCRIPTION OF THE TEST MODES
To investigate the maximum EMI emission characteristics generates from EUT, the test system was pre-scanning tested base on the consideration of following EUT operation mode or test configuration mode which possible have effect on EMI emission level. Each of these EUT operation mode(s) or test configuration mode(s) mentioned above was evaluated respectively.

Test software: BT_Tool V1.0.9.exe

The test softeware was used to control EUT work in continuous TX mode, and select test channel, Wireless mode as below table

No. Test model descrption

Low channel GFSK

Middle channel GFSK

High channel GFSK

Note:

1. All the test modes can be supply by battery, only the result of the worst case recorded in the

report. GFSK mode is worst mode.

2. For radiated emission, 3 axis were chosen for testing for each applicable mode.

3. The EUT used fully charge battery when tested. 4. During the test, the dutycycle>98%, the test voltage was tuned from 85% to 115% of the

Nominal rate supply votage, and found that the worst case was the nominal rated supply

condition, So the report just shows that condition's data

Configuration and peripherals

Mode 1: DC

EUT

Page 10 of 31

Report No.:FCS202307132W02

2.3 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS
The EUT has been tested as an independent unit together with other necessary accessories or support units. The following support units or accessories were used to form a representative test configuration during the tests.
Necessary accessories

Item Equipment

Adapter

Mfr/Brand XIOAMI

Model/Type No. MDY-11-EB

Serial No.
N/A

Note
this adapter is for testing only in repor

Support units

Item Equipment Mfr/Brand Model/Type No. Serial No. Note

Manufacturer

Battery

N/A

BL1860

N/A

Dongguan Yexun Electronic Technology Co,Ltd

Note:
(1) The support equipment was authorized by Declaration of Confirmation. (2) For detachable type I/O cable should be specified the length in cm inLengthcolumn. (3) "YES" is means "shielded" "with core"; "NO" is means "unshielded" "without core".

Page 11 of 31

Report No.:FCS202307132W02

2.4 EQUIPMENTS LIST

Radiation Test equipment
Kind of Equipment Manufacturer

Type No.

Company No. Last calibration Calibrated until

EMI Test Receiver

R&S

ESRP 3

FCS-E001 2022. 08.30 2023. 08.29

Signal Analyzer

R&S

FSV40-N

FCS-E012 2022. 08.30 2023. 08.29

Active loop Antenna

ZHINAN

ZN30900C

FCS-E013 2022. 08.30 2023. 08.29

Bilog Antenna SCHWARZBECK VULB 9168

FCS-E002 2022. 08.30 2023. 08.29

Horn Antenna

SCHWARZBECK BBHA 9120D

SHF-EHF Horn Antenna (18G-40GHz)
Pre-Amplifier(0.1M-3G Hz)
Pre-Amplifier (1G-18GHz)
Pre-Amplifier (18G-40GHz)
Temperature & Humidity

A-INFO EMCI N/A TERA-MW HTC-1

LB-180400-KF EM330N
TSAMP-0518SE TRLA-0400 victor

FCS-E003 FCS-E018 FCS-E004 FCS-E014 FCS-E019 FCS-E005

2022. 08.30 2022. 08.30 2022. 08.30 2022. 08.30 2022. 08.30 2022. 08.30

2023. 08.29 2023. 08.29 2023. 08.29 2023. 08.29 2023. 08.29 2023. 08.29

Conduction Test equipment
Kind of Equipment Manufacturer

Type No. Company No. Last calibration Calibrated until

EMI Test Receiver

R&S

ESPI

FCS-E020

2022. 08.30 2023. 08.29

LISN

R&S

ENV216

FCS-E007

2022. 08.30 2023. 08.29

LISN Temperature &
Humidity

ETS HTC-1

3810/2NM victor

FCS-E009 FCS-E008

2022. 08.30 2022. 08.30

2023. 08.29 2023. 08.29

RF Connected Test
Kind of Equipment Manufacturer

Spectrum Analyzer Keysight

Spectrum Analyzer

Agilent

Spectrum Analyzer

R&S

Type No. N9020A E4447A FSV-40

Company No. Last calibration Calibrated until

FCS-E015

2022. 08.30 2023. 08.29

MY50180039 2022. 08.30 2023. 08.29

101499

2022. 08.30 2023. 08.29

Page 12 of 31

Report No.:FCS202307132W02

3 CONDUCTED EMISSION MEASUREMENT

3.1 LIMIT
Operating frequency band. In case the emission fall within the restricted band specified on Part 207(a) limit in the table below has to be followed.

FREQUENCY (MHz)

Conducted Emissionlimit (dBuV)

Quasi-peak

Average

0.15 -0.5

66 - 56 *

56 - 46 *

0.50 -5.0

56.00

46.00

5.0 -30.0

60.00

50.00

Note: (1) The tighter limit applies at the band edges. (2) The limit of " * " marked band means the limitation decreases linearly with the logarithm of the
frequency in the range.

3.2 TEST PROCEDURE The following table is the setting of the receiver
Receiver Parameters Attenuation
Start Frequency
Stop Frequency
IF Bandwidth

Setting 10 dB 0.15 MHz 30 MHz 9 kHz

a. The EUT was 0.8 meters from the horizontal ground plane and 0.4 meters from the vertical ground plane with EUT being connected to the power mains through a line impedance stabilization network (LISN). All other support equipments powered from additional LISN(s). The LISN provide 50 Ohm/ 50uH of coupling impedance for the measuring instrument.
b. Interconnecting cables that hang closer than 40 cm to the ground plane shall be folded back and forth in the center forming a bundle 30 to 40 cm long.
c. I/O cables that are not connected to a peripheral shall be bundled in the center. The end of the cable may be terminated, if required, using the correct terminating impedance. The overall length shall not exceed 1 m.
d. LISN at least 80 cm from nearest part of EUT chassis. e. For the actual test configuration, please refer to the related Item EUT Test Photos.

Page 13 of 31

Report No.:FCS202307132W02

3.3 TEST SETUP
40cm

Vertical Reference Ground Plane
EUT

Test Receiver

LISN

80cm

Horizontal Reference Ground Plane
Note: 1.Support units were connected to second LISN. 2.Both of LISNs (AMN) are 80 cm from EUT and at least 80
cm from other units and other metal planes
support. units.

Page 14 of 31

Report No.:FCS202307132W02

3.4 TEST RESULTS

Temperature: Test Voltage: Test Mode:

22.1 DC 5V by adapter GFSK(worst)

Relative Humidity: Phase:

56% L

No. Frequency Reading

Correct

(MHz)

(dBuV) Factor(dB/m)

1 0.1500 36.22

9.52

2 0.1500 17.51

9.52

3 0.5010 38.58

9.56

4 0.5010 35.90

9.56

5 1.5000 38.83

9.57

6 1.5000 26.34

9.57

7 3.4980 38.85

9.58

8 3.4980 33.67

9.58

9 6.5040 37.08

9.60

10 6.5040 31.63

9.60

11 15.4545 32.88

9.71

12 15.4545 24.52

9.71

Result (dBuV/m)
45.74 27.03 48.14 45.46 48.40 35.91 48.43 43.25 46.68 41.23 42.59 34.23

Limit (dBuV/m)
66.00 56.00 56.00 46.00 56.00 46.00 56.00 46.00 60.00 50.00 60.00 50.00

Margin (dB)
20.26 28.97 7.86 0.54 7.60 10.09 7.57 2.75 13.32 8.77 17.41 15.77

Remark
QP AVG QP AVG QP AVG QP AVG QP AVG QP AVG

Page 15 of 31

Report No.:FCS202307132W02

Temperature: Test Voltage: Test Mode:

22.1 DC 5V by adapter GFSK(worst)

Relative Humidity: Phase:

56% N

No. Frequency Reading

Correct

(MHz)

(dBuV) Factor(dB/m)

1 0.1532 38.78

9.51

2 0.1532 19.85

9.51

3 0.4695 35.73

9.56

4 0.4695 30.82

9.56

5 1.4865 43.12

9.57

6 1.4865 35.73

9.57

7 2.4810 43.34

9.59

8 2.4810 35.61

9.59

9 5.4689 40.52

9.67

10 5.4689 34.06

9.67

11 14.4060 33.04

9.79

12 14.4060 26.52

9.79

Result (dBuV/m)
48.29 29.36 45.29 40.38 52.69 45.30 52.93 45.20 50.19 43.73 42.83 36.31

Limit (dBuV/m)
65.82 55.82 56.52 46.52 56.00 46.00 56.00 46.00 60.00 50.00 60.00 50.00

Margin (dB)
17.53 26.46 11.23 6.14 3.31 0.70 3.07 0.80 9.81 6.27 17.17 13.69

Remark
QP AVG QP AVG QP AVG QP AVG QP AVG QP AVG

Page 16 of 31

Report No.:FCS202307132W02

4. RADIATED EMISSION MEASUREMENT

4.1 LIMIT
In any 100 kHz bandwidth outside the operating frequency band. In case the emission fall within the Restricted band specified on Part15.205(a)&209(a) limit in the table and according to ANSI C63.10-2013 below has to be followed LIMITS OF RADIATED EMISSION MEASUREMENT (0.009mhz - 1000mhz)

Frequencies

Field Strength

Measurement Distance

(MHz)

(micorvolts/meter)

(meters)

0.009~0.490

2400/F(KHz)

300

0.490~1.705

24000/F(KHz)

1.705~30.0

30~88

100

88~216

150

216~960

200

Above 960

500

LIMITS OF RADIATED EMISSION MEASUREMENT (1GHz-25 GHz)

FREQUENCY (MHz)

(dBuV/m) (at 3M)

PEAK

AVERAGE

Above 1000

LIMITS OF FIELD STRENGTH OF THE FUNDAMENTAL SIGNAL

FREQUENCY (MHz)

(dBuV/m) (at 3M)

PEAK

AVERAGE

2400-2483.5

114

Notes: (1) The limit for radiated test was performed according to FCC PART 15C. (2) The tighter limit applies at the band edges. (3) Emission level (dBuV/m)=20log Emission level (uV/m).

Page 17 of 31

Report No.:FCS202307132W02

4.2 TEST PROCEDURE

Spectrum Parameter

Setting

Attenuation

Auto

Detector

Peak/AV

Start Frequency

1000 MHz(Peak/AV)

Stop Frequency

10th carrier hamonic(Peak/AV)

RB / VB (emission in restricted

PK=1MHz / 1MHz, AV=1 MHz /10 Hz

band)

(Peak detector is for Both)

a. The measuring distance of at 3 m shall be used for measurements at frequency 0.009MHz up to 1GHz,and above 1GHz.
b. The EUT was placed on the top of a rotating table 0.8 meters (above 1GHz is 1.5 m) above the ground at a 3 meter anechoic chamber test site. The table was rotated 360 degrees to determine the position of the highest radiation.
c. The height of the equipment shall be 0.8 m(above 1GHz is 1.5 m); the height of the test antenna shall vary between 1 m to 4 m. horizontal and vertical polarizations of the antenna are set to make the measurement.
d. The initial step in collecting conducted emission data is a spectrum analyzer peak detector mode pre-scanning the measurement frequency range. Significant peaks are then marked and then QuasiPeak detector mode re-measured. e. If the Peak Mode measured value compliance with and lower than Quasi Peak Mode Limit, the EUT shall be deemed to meet QP Limits and then no additional QP Mode measurement performed. f. For the actual test configuration, please refer to the related Item EUT Test Photos.

Note: Both horizontal and vertical antenna polarities were tested and performed pretest to three orthogonal axis. The worst case emissions were reported For fundamental frequency ,RBW>20dB BW ,VBW>RBW,PK detector for PK value, RMS detector for AV value.

Page 18 of 31

Report No.:FCS202307132W02

4.3 TEST SETUP ARadiated Emission Test-Up Frequency Below 30MHz

BRadiated Emission Test-Up Frequency 30MHz~1GHz

CRadiated Emission Test-Up Frequency Above 1GHz

Page 19 of 31

Report No.:FCS202307132W02

4.4 TEST RESULTS

Temperature: Test Mode:

25 GFSK (worst mode)

For field strength of the fundamental signal

Relative Humidity: 60%

Test Voltage:

DC 20V

For spurious emission
(9KHz-30MHz) Freq. (MHz) ---

Reading (dBuV/m)
---

Limit (dBuV/m)
---

Margin (dB) ---

State P/F ---

Test Result
PASS PASS

Note: The amplitude of spurious emissions which are attenuated by more than 20dB below the permissible value has no need to be reported. Distance extrapolation factor =40 log (specific distance/test distance)(dB); Limit line = specific limits (dBuv) + distance extrapolation factor.

Page 20 of 31

Report No.:FCS202307132W02

(30MHZ-1000MHZ)
Temperature: Test Voltage: Test Mode:

23.7 DC 20V GFSK(worst mode)

Relative Humidity: Phase:

61% Horizontal

No. Frequency (MHz)
1 50.2324 2 157.0074 3 181.2834 4 255.6231 5 429.5228 6 711.6734

Reading (dBuV)
30.11 53.85 61.47 55.96 70.01 57.82

Correction (dB/m)
-17.97 -32.24 -32.22 -32. 14 -31.97 -31.62

Result (dBuV/m)
12.14 21.61 29.25 23.82 38.04 26.20

Limit (dBuV/m)
40.00 43.50 43.50 46.00 46.00 46.00

Margin (dB)
-27.86 -21.89 -14.25 -22.18 -7.96 -19.80

Remark
QP QP QP QP QP QP

Page 21 of 31

Report No.:FCS202307132W02

Temperature: Test Voltage: Test Mode:

22.7 DC 20V GFSK (worst mode)

Relative Humidity: Phase:

61% Vertical

No. Frequency (MHz)
1 42.1542 2 94.0979 3 178.7584 4 236.6447 5 411.8240 6 578.6699

Reading (dBuV)
34.92 54.76 59.67 56.44 67.67 61.46

Correction (dB/m)
-14.74 -32.29 -32.22 -32. 16 -31.99 -31.80

Result (dBuV/m)
20.18 22.47 27.45 24.28 35.68 29.66

Limit (dBuV/m)
40.00 43.50 43.50 46.00 46.00 46.00

Margin (dB)
-19.82 -21.03 -16.05 -21.72 -10.32 -16.34

Remarks: 1. Margin = Result (Result =Reading + Factor )Limit

Remark
QP QP QP QP QP QP

Page 22 of 31
(1GHZ~25GHZ) LOW CH(GFSK)WORST MODE

Report No.:FCS202307132W02

3.The amplitude of spurious emissions which are attenuated by more than 20dB below the permissible value has no need to be reported.
Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com

Page 23 of 31
MIDDLE CH(GFSK) WORST MODE

Report No.:FCS202307132W02

3.3.THE AMPLITUDE OF SPURIOUS EMISSIONS WHICH ARE ATTENUATED BY MORE THAN 20DB BELOW THE PERMISSIBLE VALUE HAS NO NEED TO BE REPORTED.
Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com

Page 24 of 31
HIGH CH(GFSK)WORST MODE

Report No.:FCS202307132W02

Page 25 of 31

Report No.:FCS202307132W02

5. BAND EDGE TEST
5.1 LIMIT According to §15.249(d), Emissions radiated outside of the specified frequency bands, except for harmonics, shall be attenuated by at least 50 dB below the level of the fundamental or to the general radiated emission limits in §15.209, whichever is the lesser attenuation.

5.2 TEST PROCEDURE
a. The EUT is placed on a turntable, which is 1.5m above ground plane. EUT is set 3m away from the receiving antenna, which is varied from 1m to 4m to find out
b. the highest emissions. Use the following spectrum analyzer settings:
c. Span = wide enough to fully capture the emission being measured, RBW = 1 MHz, VBW RBW, Sweep = auto, Detector function = peak, Trace = max hold Follow the guidelines in ANSI C63.4 with respect to maximizing the emission by rotating the EUT, adjusting the measurement antenna height and polarization, etc.
d. The peak reading of the emission, after being corrected by the antenna factor, cable loss, pre-amp gain, etc., is the peak field strength, submit this data. Each emission was to be maximized by changing the polarization of receiving antenna both horizontal and vertical. Set the VBW to 10 Hz, while maintaining all of the other instrument settings. This peak level, once corrected, must comply with the limit specified in Section 15.209. If the duty cycle per channel of the hopping signal is less than 100 ms, then the reading obtained with
e. the 10 Hz VBW may be further adjusted by a "duty cycle correction factor", derived from 20log(duty cycle/100 ms), in an effort to demonstrate compliance with the 15.209 limit. Submit this data.
Note: For fundamental frequency ,RBW>20dB BW ,VBW>RBW,PK detector for PK value, RMS detector for AV value.

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5.3 TEST SETUP Radiated Emission Test-Up Frequency Above 1GHz

Report No.:FCS202307132W02

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5.4 TEST RESULTS Low CH (GFSK)worst mode

Report No.:FCS202307132W02

High CH(GFSK) worst mode

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Report No.:FCS202307132W02

6. 20 DB BANDWIDTH TEST
6.1 LIMIT According to 15.215 (c) Intentional radiators operating under the alternative provisions to the general emission limits, as contained in § 15.217 through 15.257 and in Subpart E of this part, must be designed to ensure that the 20 dB bandwidth of the emission, or whatever bandwidth may otherwise be specified in the specific rule section under which the equipment operates, is contained within the frequency band designated in the rule section under which the equipment is operated. The requirement to contain the designated bandwidth of the emission within the specified frequency band includes the effects from frequency sweeping, frequency hopping and other modulation techniques that may be employed as well as the frequency stability of the transmitter over expected variations in temperature and supply voltage. If a frequency stability is not specified in the regulations, it is recommended that the fundamental emission be kept within at least the central 80% of the permitted band in order to minimize the possibility of out-of-band operation
6.2 TEST PROCEDURE
Check the calibration of the measuring instrument using either an internal calibrator or a a. known signal from an external generator b. Position the EUT without connection to measurement instrument. Turn on the EUT and
connect it to measurement instrument. Then set it to any one convenient frequency within
its operating range. Set a reference level on the measuring instrument equal to the highest
peak value. c. Measure the frequency difference of two frequencies that were attenuated 20 dB from the
reference level. Record the frequency difference as the emission bandwidth.
6.3 TEST SETUP

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Report No.:FCS202307132W02

6.4 TEST RESULTS

Temperature: Test Mode:

25 GFSK

Frequency 2402 MHz 2440 MHz 2480 MHz

Relative Humidity: 50%

Test Voltage:

DC 20V

20dB Bandwidth (MHz) 1.116
1.132
1.140

Result PASS PASS PASS

2402 MHz

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Report No.:FCS202307132W02

2440 MHz

2480 MHz

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Report No.:FCS202307132W02

7. ANTENNA REQUIREMENT
7.1 STANDARD REQUIREMENT 15.203 requirement: For intentional device, according to 15.203: an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device.
7.2 EUT ANTENNA The antennas used for this product are PCB antenna and other than that furnished by the responsible party shall be used with the device, the maximum peak gain of the transmit antenna is -0.68dBi.

END OF THE REPORT

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