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May 27, 2024 · LC90,LC90M,LC100,LC86,LC80,A8W,A9. Trade Mark. CHOYONG. Applicable standards: Article 2 paragraph 1 item 19 (WW). Notice No.88 Annex 43. Date of ...

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Document DEVICE REPORT219-249185 02 010
Report No.: 24CST050028M01
Test Report

Applicant:

Shenzhen Chaoyuan Technology Co., Ltd

Address of Applicant:

734, Block W2-A, High-tech Industrial Village, No. 025, South 4th Gaoxin Road, High-tech Zone Community, Yuehai Street, Nanshan District, Shenzhen

Manufacturer :

Shenzhen Chaoyuan Technology Co., Ltd

Address of Manufacturer :

734, Block W2-A, High-tech Industrial Village, No. 025, South 4th Gaoxin Road, High-tech Zone Community, Yuehai Street, Nanshan District, Shenzhen

Factory 

Dongguan Ruyi Electronics Technology Co.,Ltd.

Address of Factory:

No. 1, Xiaohe Industrial Road, Daojiao Town, Dongguan City, Guangdong Province

Equipment Under Test (EUT)

Product Name:

Multi-Band Internet Radio

Model No.: Trade Mark
Applicable standards:
Date of sample receipt: Date of Test: Date of report issued: Test Result :

LC90,LC90M,LC100,LC86,LC80,A8W,A9 CHOYONG Article 2 paragraph 1 item 19 (WW) Notice No.88 Annex 43 May. 05,2024 May.05-27,2024 May. 27,2024 PASS *

* In the configuration tested, the EUT complied with the standards specified above.

Authorized Signature:

Frank Cheng Laboratory Manager
This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver.

2 Version
Version No. 00

Date May.27,2024

Report No.: 24CST050028M01
Description Original

Prepared By: Check By:

Project Engineer Reviewer

Date: Date:

May.27,2024 May.27,2024

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 2 of 17

Report No.: 24CST050028M01
3 Contents
Page 1 COVER PAGE................................................................................................................................................................ 1 2 VERSION .............................................................................................................................................................. 2 3 CONTENTS .......................................................................................................................................................... 3 4 TEST SUMMARY ................................................................................................................................................. 4 5 GENERAL INFORMATION .................................................................................................................................. 5
5.1 GENERAL DESCRIPTION OF EUT ...................................................................................................................... 5 5.2 CHANNEL LIST ..................................................................................................................................................6 5.3 TEST MODE ......................................................................................................................................................6 5.4 TEST CONDITION .............................................................................................................................................. 7 5.5 TEST LOCATION ............................................................................................................................................... 7 5.6 OTHER INFORMATION REQUESTED BY THE CUSTOMER ..................................................................................... 7 5.7 TEST INSTRUMENTS LIST .................................................................................................................................. 8 5.8 MEASUREMENT UNCERTAINTY .......................................................................................................................... 8 6 TEST RESULTS AND MEASUREMENT DATA ..................................................................................................9 6.1 FREQUENCY ERROR ........................................................................................................................................ 9 6.2 ANTENNA POWER .......................................................................................................................................... 10 6.3 OCCUPY BANDWIDTH (99%) .......................................................................................................................... 11 6.4 SPREAD SPECTRUM BANDWIDTH (90%) .......................................................................................................... 12 6.5 DWELL TIME ...................................................................................................................................................13 6.6 SPURIOUS EMISSION INTENSITY ...................................................................................................................... 14 6.7 LIMIT OF SECONDARY RADIATED EMISSIONS .................................................................................................... 15 6.8 INTERFERENCE SUPPRESSION ........................................................................................................................ 16 7 TEST SETUP PHOTO ........................................................................................................................................ 17 8 EUT CONSTRUCTIONAL DETAILS ................................................................................................................. 17
Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 3 of 17

4 Test Summary

Report No.: 24CST050028M01

MIC Notice No.88 Appendix No.43 Article 2 Paragraph 1 ltem 19

Clause

Test Item

Result

3

Frequency Error

Pass

6

Antenna Power

Pass

6

Tolerances for antenna power

Pass

4

Transmission rate

Pass

4

99% Occupied bandwidth

Pass

4

Spread spectrum bandwidth

Pass

13

Dwell time

Pass

11

Spurious Emissions Intensity

Pass

7

Limit of secondary radiated

emissions

Pass

12

Interference suppression

Pass

Pass: The EUT complies with the carrier sense capability and radio interference prevention capability.

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 4 of 17

5 General Information

5.1 General Description of EUT

Product Name:

Multi-Band Internet Radio

Model No.:

LC90,LC90M,LC100,LC86,LC80,A8W,A9

Operation Frequency: Channel Numbers:

2402MHz~2480MHz 79

Channel Separation: Modulation Type:

1MHz GFSK, /4-DQPSK, 8DPSK

Antenna Type:

FPC antenna

Antenna Gain:

1.81dBi

Hardware Version:

V3.0

Software Version:

LC90EN_CYOS_4.5_240510_0904

Power supply:

Charge Voltage:DC 5V by adapter Li-ion Battery:DC 3.7V

Report No.: 24CST050028M01

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 5 of 17

Report No.: 24CST050028M01

5.2 Channel list

Operation Frequency each of channel

Channel

Frequency (MHz)

Channel

Frequency (MHz)

0

2402

20

2422

1

2403

21

2423

2

2404

22

2424

3

2405

23

2425

......

......

......

......

16

2418

36

2438

17

2419

37

2439

18

2420

38

2440

19

2421

39

2441

Channel
40 41 42 43 ...... 56 57 58 59

Frequency (MHz) 2442 2443 2444 2445 ...... 2458 2459 2460 2461

Channel
60 61 62 63 ...... 76 77 78

Frequency (MHz) 2462 2463 2464 2465 ...... 2478 2479 2480

Test Channel Lowest channel Middle channel Highest channel

Frequency(MHz) 2402.00 2441.00 2480.00

5.3 Test mode
Software used to control the EUT for staying in continuous transmitting and receiving mode is programmed.

POWER

2402MHz Default

Frequency 2441MHz
Default

2480MHz Default

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 6 of 17

Report No.: 24CST050028M01

5.4 Test condition
Note: The EUT has its own voltage regulator principle from SGM4553, the output voltage of the chip is 3.3V and the fluctuation of power supply to the RF circuit of EUT is equal to or less than +/- 10%. So exempt extremely high and low supply voltage condition tests, EUT only operated in normal voltage to test all regulations.

External power supply

RF IC power supply Deviation from normal

Deviation

Normal voltage: DC 5.0V

3.3V

-

-

High voltage: DC 5.5V

3.3V

-

-

Low voltage: DC 4.5V

3.3V

-

-

External power supply

Temperature:

25 °C

Humidity:

52%

Atmospheric Pressure

1010mbar

5.5 Test Location

All tests were performed at:

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627

5.6 Other Information Requested by the Customer

None.

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 7 of 17

Report No.: 24CST050028M01

5.7 Test Instruments list
Radiated Emission:

Item

Test Equipment

Manufacturer

Model No.

1 Radio Test Software

2

TST PASS RF control box V2

3 Power measuring unit

4

Automatic path switching module

5

Spectrum Analyzer

TST TST TST TST Agilent

V2 V2 V2 V2 N9020A

6

Signal Generator

Agilent

N5182A

7

Signal Generator

Agilent

N5181A

UNIVERSAL RADIO

8

COMMUNICATION Rohde & Schwarz

CMW200

TESTER

9

Splitter

Agilent

11636B

10

Power Attenuator

BTI

30dB/250W

11

Power Attenuator

BTI

20dB

12 D.C. Power Supply

Gwinstek

GPC-3060D

13

Coaxial Cable

CST

N/A

14

Coaxial Cable

CST

N/A

15

Coaxial cable

CST

N/A

16

Coaxial Cable

CST

N/A

17

Temperature and humidity box

ATOINSTRUMENT ATH-2254-CP

18

Temperature and humidity meter

GEMLEAD

STH130

19 Digital oscilloscope

Tektronix

TDS3032B

Inventory No.
CST210
CST210
CST210 CST210
CST001 CST211
CST212

Cal.Date (mm-dd-yy) Oct. 15, 2023
Oct. 15, 2023
Oct. 15, 2023
Oct. 15, 2023
Oct. 15, 2023 Oct. 15, 2023 Oct. 15, 2023

CST002 Oct. 15, 2023

CST213 CST216 CST217 CST018 CST219 CST220 CST222 CST223
CST026

Oct. 15, 2023 Oct. 15, 2023 Oct. 15, 2023 Oct. 15, 2023 Oct. 15, 2023 Oct. 15, 2023 Oct. 15, 2023 Oct. 15, 2023
Oct. 15, 2023

CST042 CST043

Oct. 15, 2023 Oct. 15, 2023

Cal.Due date (mm-dd-yy) Oct. 14, 2024
Oct. 14, 2024
Oct. 14, 2024
Oct. 14, 2024
Oct. 14, 2024 Oct. 14, 2024 Oct. 14, 2024
Oct. 14, 2024
Oct. 14, 2024 Oct. 14, 2024 Oct. 14, 2024 Oct. 14, 2024 Oct. 14, 2024 Oct. 14, 2024 Oct. 14, 2024 Oct. 14, 2024
Oct. 14, 2024
Oct. 14, 2024
Oct. 14, 2024

Calibration by the calibration agencies listed in the table correspond to paragraph 4 (ii) (c) of Article 24-2 in the Radio Law.

Calibration by the calibration agencies listed in the table correspond to paragraph 4 (ii) (c) of Article 24-
2 in the Radio Law. All of the instruments are calibrated by CEPREI Calibration and Testing Center.
5.8 Measurement uncertainty
For the test methods, according to the present document, the measurement uncertainty figures shall be calculated in accordance with TR100028-1 [2] and shall correspond to an expansion factor (coverage factor) K=1.96 or K=2 (which provide confidence levels of respectively 95% and 95.5% in the case where the distributions characterizing the actual measurement uncertainties are normal.

Parameter RF frequency Total RF power, conducted Spurious emissions, conducted DC and low frequency voltages
Humidity Temperature

Uncertainty +/-6*10-7 +/-0.8dB +/-0.8dB +/-3% +/-5% +/-1°C

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 8 of 17

Report No.: 24CST050028M01

6 Test results and Measurement Data

6.1 Frequency Error

Test condition:

Without modulation, continuously transmitting.

Spectrum set: Limit:

Test Frequency: test channel, RBW=VBW=10KHz, Span=1MHz, Sweep time=Auto, Detector mode=Positive peak
±50ppm

Test setup:

Test Instruments: Test results:

Refer to section 5.8 for details Pass

Measurement Data: The detailed test data see Appendix I

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 9 of 17

6.2 Antenna Power
Test condition: Spectrum set:
Rating power: Limit:
Test setup:

Report No.: 24CST050028M01

 Hopping on Test diffusion code and modulate with standard coding test signal

Measurement procedure Measure of Output power for hopping equipment
RBW=VBW=1MHz, Span=2400-2483.5MHz, Sweep time=Auto, Detector mode=Positive peak

GFSK

:0.01mW/MHz

/4-DQPSK:0.01mW/MHz

8DPSK :0.01mW/MHz

3mW/MHz FHSS from 2400-2483.5MHz The output power tolerance must be within +20% E.I.R.P: 6.91dBm/MHz(FHSS from 2400-2483.5MHz)

Test Instruments: Test results:

Refer to section 5.8 for details Pass

Measurement Data: The detailed test data see Appendix I

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 10 of 17

Report No.: 24CST050028M01

6.3 Occupy Bandwidth (99%)

Test condition:

 Hopping on Test diffusion code and modulate with standard coding test signal

Spectrum set:

Test Frequency: test channel,
RBW=VBW=1MHz, Span=160MHz, Sweep time=Auto, Detector mode=Positive peak

Limit:

83.5MHz or less

Test setup:

Test Instruments: Test mode: Test results:

Refer to section 5.8 for details Transmitting mode Pass

Measurement Data: The detailed test data see Appendix I

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 11 of 17

Report No.: 24CST050028M01

6.4 Spread spectrum bandwidth (90%)

Test condition:

 Hopping on  Test diffusion code and modulate with standard coding test signal

Spectrum set:

Test Frequency: test channel,
RBW=VBW=1MHz, Span=160MHz, Sweep time=Auto, Detector mode=Positive peak

Limit:

500KHz or more

Test setup:

Test Instruments: Test results:

Refer to section 5.8 for details Pass

Measurement Data: The detailed test data see Appendix I

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 12 of 17

6.5 Dwell time
Test condition:
Spectrum set:
Limit: Test setup:

Report No.: 24CST050028M01
 Hopping on  Test diffusion code and modulate with standard coding test signal Test Frequency: test channel, RBW=VBW=1MHz, Span=0Hz, Detector mode=Positive peak 0.4 second or less

Test Instruments: Test results:

Refer to section 5.8 for details Pass

Measurement Data: The detailed test data see Appendix I

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 13 of 17

Report No.: 24CST050028M01

6.6 Spurious emission intensity

Test condition:

Test diffusion code and modulate with standard coding test signal

Measurement procedure:

Step 1 All spurious are measured from 30MHz to 13GHz by peak mode.
Step 2 If the value measured by Step1 is 3dB or less to the limit, measure in average mode.

Spectrum set:

Step 1: Test Frequency: test channel, RBW=VBW=1MHz, Sweep time=Auto, Detector mode=Positive peak Step 2: Test Frequency: spurious frequency RBW=VBW=1MHz, Sweep time=Auto, Detector mode=Sample, Span=0Hz

Limit:

Below 2387 MHz: 2.5W/MHz or less 2387 to 2400 MHz: 25W/MHz or less 2483.5 through 2496.5 MHz: 25W/MHz or less Over 2496.5 MHz: 2.5W/MHz or less

Test setup:

Test Instruments: Test results:

Refer to section 5.8 for details Pass

Measurement Data: The detailed test data see Appendix I

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 14 of 17

Report No.: 24CST050028M01

6.7 Limit of secondary radiated emissions

Test condition:

Receiving mode

Measurement procedure:

Step 1 All spurious are measured from 30MHz to 13GHz by peak mode.
Step 2 If the value measured by Step1 is 3dB or less to the limit, measure in average mode.

Spectrum set:

Step 1: Test Frequency: test channel, Below 1GHz, RBW=VBW=100KHz; Above 1GHz, RBW=VBW=1MHz, Sweep time=Auto, Detector mode=Positive peak Step 2: Test Frequency: spurious frequency Test Frequency: test channel, Below 1GHz, RBW=VBW=100KHz; Above 1GHz, RBW=VBW=1MHz, Sweep time=Auto, Detector mode=Sample, Span=0Hz

Limit:

Below 1GHz: 4.0nW or less Above 1GHz: 20nW or less

Test setup:

Test Instruments: Test results:

Refer to section 5.8 for details Pass

Measurement Data: The detailed test data see Appendix I

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 15 of 17

Report No.: 24CST050028M01

6.8 Interference suppression

Measurement procedure:

(1) The radio equipment with automatic transmitting function of identification code
a) Transmit the assigned identification code from the radio equipment.
b) Confirm the identification code received by the demodulator.
(2) The radio equipment with automatic receiving function of identification code
a) Transmit the assigned identification code from the opposite equipment.
b) Confirm that the usual communication is available.
c) Transmit the identification code distinct from the assigned one from the opposite equipment.
d) Confirm that the radio equipment is stopped or an indication is displayed as the identification code is different.

Test setup:

Radio equipment

Dummy load Attenuator)

Demodulator

Test Instruments: Test results:

Refer to section 5.8 for details Pass

Measurement data: Identification function:
MAC address :

Good 54EF:33:9A:1E:A4

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 16 of 17

7 Test Setup Photo
Reference to the Setup photo for details
8 EUT Constructional Details
Reference to the External Photos and Internal Photos for details
------End------

Report No.: 24CST050028M01

Shenzhen CST Testing Co., Ltd 308, Block A, Huafeng internet creative park, 107 Gonghe Industrial Road, Xixiang Street, Bao'an, Shenzhen 518101 Telephone: 0755-27907627 Fax: 0755-27907627
Page 17 of 17


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