Japan Radio Test Report

Report No.: AIT24021804TW2

Client Information

Applicant: DOKE COMMUNICATION (HK) LIMITED

Applicant Address: 19H MAXGRAND PLAZA NO 3 TAI YAU STREET SAN PO KONG KL CHINA

Product Information

Product Name: Notebook computer

Model No.: AceBook 8

Derivative model No.: N/A

Brand Name: Blackview

Standards: Item 19 of Article 2 Paragraph 1, MIC public notice 88:2004, annex 43

Test Summary

Test	Test Requirement	Limit/Severity	Result
Antenna Requirement	MIC Notice No.88 Appendix No. 43	Notice 88 Appendix 43,B-1 (1)&(2)	PASS
Test frequency	MIC Notice No.88 Appendix No. 43	Notice 88 Appendix 43, A-3	PASS
Frequency Error	MIC Notice No.88 Appendix No. 43	±50 PPM or less	PASS
Occupied Bandwidth	MIC Notice No.88 Appendix No. 43	OFDM(802.11n(HT40)) : 26-40MHz, Others OFDM : 26MHz or less, DSSS: 26MHz or less	PASS
Spread-spectrum Bandwidth	MIC Notice No.88 Appendix No. 43	500 kHz or more	PASS
Antenna Power	MIC Notice No.88 Appendix No. 43	10mW/MHz for 802.11b/g/n(HT20); 5mW/MHz for 802.11n(HT40)	PASS
Spurious Emission of Tx	MIC Notice No.88 Appendix No. 43	(1) Below 2387 MHz : -26dBm, (2) 2387 to 2400 MHz : -16dBm, (3) 2483.5 through 2496.5 MHz : -16dBm, (4) Over 2496.5 MHz : -26dBm	PASS
Interference prevention capability	MIC Notice No.88 Appendix No. 43	Notice 88 Appendix 43, 44, 45	PASS
RF accessibility	MIC Notice No.88 Appendix No. 43	Notice 88 Appendix 43, 44, 45	PASS
Spurious Emission of Rx	MIC Notice No.88 Appendix No. 43	(1) Below 1 GHz: -54dBm, (2) 1GHz or higher: -47dBm	PASS

Measurement Uncertainty

The report 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%.

Item	Uncertainty
Frequency Error / 99% & 90% Bandwidth	± 0.85 x 10⁻⁷
Antenna Power	± 0.70 dB
Spurious Emissions	± 0.80 dB
DC / AC Power Source	±1.4%

Test Facility

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

CNAS: Registration No: L6177. Dongguan Yaxu (AiT) technology Limited is accredited to ISO/IEC 17025:2017.
FCC: Registration No.: 703111, Designation Number: CN1313.
IC: Registration No.: 6819A, CAB identifier: CN0122.
A2LA: Lab Cert. No.: 6317.01.

Deviation from standard: None

Abnormalities from standard conditions: None

Version

Revision Record: Version 00, Date: Apr. 10, 2024, Modifier: -, Remark: Original

Test Location

All tests were performed at: Dongguan Yaxu (AiT) Technology Limited, No.22, Jinqianling Third Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Tel.: +86.769.82020499 Fax.: +86.769.82020495

General Information

Manufacturer: Shenzhen DOKE Electronic Co.,Ltd

Manufacturer Address: 801, Building3, 7th Industrial Zone, Yulv Community, Yutang Road, Guangming District, Shenzhen, China.

EUT Name: Notebook computer

Model No.: AceBook 8

Brand Name: Blackview

Operating Frequency: 2412 MHz to 2472 MHz

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

Transmit Data Rates: 802.11b: 1/2/5.5/11 Mbps; 802.11g: 6/9/12/18/24/36/48/54 Mbps; 802.11n(HT20): 7.2/14.4/21.7/28.9/43.3/57.8/65/72.2 Mbps; 802.11n(HT40): 15/30/45/60/90/120/135/150 Mbps

Number of Channels: 13 Channels for 802.11b/g/n(HT20); 9 Channels for 802.11n(HT40)

Channel Separation: 5 MHz

Antenna Type: FPC Antenna

Antenna Gain: ANT1(MAIN):1.26dBi

Normal Antenna Power: 802.11b: 1.0 mW/MHz; 802.11g: 1.0 mW/MHz; 802.11n(HT20): 1.0 mW/MHz; 802.11n(HT40): 1.0 mW/MHz

Power Supply Range: DC 12V form adapter (Model: M120300-A010JP, Input: 100-240V~, 50-60Hz, 0.8A, Output: DC 12V3.0A 36.0W)

Battery: DC7.6V 5000mAh

Hardware Version: AN168_MB_R11

Software Version: 22H2

EUT Peripheral List

No.	Equipment	Manufacturer	Model No.	Serial No.	Power cord	Signal cord
1	Adapter	Zhongshan MLS Electrical Appliance Co.,Ltd.	M120300-A010JP	N/A	N/A	N/A

Equipment Used during Test

No.	Test Equipment	Manufacturer	Model No.	Serial No.	Cal. Date	Cal. Due Date	Cal. Lab
1	SIGNAL Analyzer	R&S	FSV40	101470	2023.09.08	2024.09.07	Guangzhou Lisai
2	EMI Measuring Receiver	R&S	ESR	101660	2023.09.08	2024.09.07	Guangzhou Lisai
3	Mobile phone	Samsung	GALAXY S4	R33D20 SQYNW	N/A	N/A	N/A
4	DC Power supply	Manson	HCS-3604	G521100 129	2023.09.08	2024.09.07	Guangzhou Lisai
5	Digital Phosphor Oscilloscope	Tektronix	TDS3012	B021220	2023.09.08	2024.09.07	Guangzhou Lisai
6	Signal Generator	Agilent	N5182A	MY50143 009	2023.09.08	2024.09.07	Guangzhou Lisai

Test Results

7.1 Radio Technical Requirements Specification

This section details the Radio Technical Requirements Specification for the 2.4 GHz band wide-band low-power data communication system, as per Item 19 of Article 2-1.

Item	Technical Standard
Assigned frequency or designated frequency	2,400-2,483.5MHz
Communication method	One-way communication, simplex, semi-duplex, or duplex operation of digital signal transmission including spread spectrum
Tolerance of frequency (×10⁻⁶)	±50 ppm
Tolerance of occupied bandwidth	FH: 83.5MHz or less; FH + DS: 83.5MHz or less; FH + OFDM: 83.5MHz or less; OFDM (802.11n(HT40)): 26-40MHz; OFDM (802.11g/n(HT20)): 26MHz or less; DSSS(802.11b): 26MHz or less
Antenna power	Designated value: (1) FH, FH+DS, FH+OFDM: 3mW/MHz; (2) OFDM, DS other than (1) 10mW/MHz; (3) Other than (1) & (2) 10mW; (4) OFDM OBW 26 - 40MHz: 5mW/MHz. Tolerance: +20%,-80%
Antenna gain	12.14 dBi or less in principle. For directional antenna: (1) FH, FH+DS or FH+OFDM using 2427-2470.75 MHz EIRP≤ 16.91 dBm/MHz; (2) OFDM or DS other than (1) EIRP≤ 22.14 dBm/MHz; (3) Other than (1) and (2): 22.14 dBm or less; (4) OFDM OBW 26 - 40MHz: 19.14dBm/MHz.
Tolerance of spurious emission intensity	(1) Below 2387 MHz : 2.5μW; (2) 2387 to 2400 MHz : 25μW; (3) 2483.5 through 2496.5 MHz : 25μW; (4) Over 2496.5 MHz : 2.5μW
Spreading bandwidth	DS,FH,FH+DS,FH+OFDM : 500kHz or more
Spreading rate of spectrum	For DS system;(Spreading bandwidth) / (Frequency corresponding to transmission rate) ≥ 5
Limit of secondary radiated emissions	(1) Below 1 GHz : 4 nW; (2) 1 GHz or higher : 20 nW
Interference prevention function	Shall have the function of automatic transmission and reception of identification sign.
Structure	Shall be of the structure that the RF and modulator sections excluding antenna cannot easily be opened.

Test Result: All tested items passed.

7.2 E.U.T. Test Conditions

Tests were conducted at the rated voltage of DC 12V, with input voltage fluctuation within ±10% and output voltage limitation within ±1%.

Temperature: 25.0 °C

Humidity: 75 % RH

Atmospheric Pressure: 1010 mbar

Test frequencies: Testing performed on Lowest, Middle, and Highest frequencies as applicable.

Software Setting: Test program REALTEK 11ac 8821 used for channel and power control.

Parameters	Low	Middle	High
802.11b Parameters	28	28	28
802.11g Parameters	33	33	33
802.11n(20) Parameters	32	32	32
802.11n(40) Parameters	27	27	27

EUT Channels and Frequencies:

Channel	Frequency (MHz)	Channel	Frequency (MHz)
1	2412	8	2447
2	2417	9	2452
3	2422	10	2457
4	2427	11	2462
5	2432	12	2467
6	2437	13	2472
7	2442	/	/

Remark: Specific frequencies used for testing are detailed in the original report.

7.3 Antenna Requirement

The antenna is integrated on the main FPC and cannot be replaced. The best case gain of the antenna is 1.26dBi. All relevant tests were conducted.

An image shows the EUT antenna labeled as Antenna1(MAIN) 2.4GWIFI and Antenna2(AUX) BT+5GWIFI.

7.4 Interference Prevention Function

The device uses FPCB antenna and 2.4 GHz WIFI IC with Component IC CPU for interference protection. Testing involved connecting the EUT to a mobile phone as an AP to detect WiFi ID information. The MAC address was found to be A0:02:6A:C2:00:22. The unit meets the requirements.

A diagram shows the test configuration: WiFi (EUT) connected to a Mobile phone.

7.5 Carrier Sense Function

The test involved setting up equipment to check the carrier sense function. The EUT stops RF transmission signal after carrier injection. The test result was 'Good', and the unit meets the requirements.

A diagram shows the test configuration involving a Test equipment, Distributor, Spectrum analyzer, and Standard signal generator.

7.6 Frequency Error

The test measures the frequency error against the standard tolerance of ±50×10⁻⁶. The EUT was tested in transmitting mode with modulation. The unit meets the requirements.