JAPAN RADIO TEST REPORT
Report No.: AIT24021804TW1
Client Information
Applicant: DOKE COMMUNICATION (HK) LIMITED
Applicant add.: 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
Prepared By
Company: Dongguan Yaxu (AiT) Technology Limited
Address: No.22, Jinqianling Third Street, Jitigang, Huangjiang, Dongguan, Guangdong, China
Date of Receipt: Feb. 18, 2024
Date of Test: Feb. 18, 2024~Apr. 09, 2024
Date of Issue: Apr. 10, 2024
Test Result: Pass
Notes and Disclaimers
This device has been tested and found to comply with the stated standard(s) above, which is (are) applicable only to the tested sample identified in the report.
Note: This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited. This document may be altered or revised by Dongguan Yaxu (AiT) Technology Limited, personal only, and shall be noted in the revision of the document. This test report must not be used by the client to claim product endorsement.
Reviewed by:
Emiya Lin
Approved by:
Gimba Huang
Contents
- 1 CONTENTS
- 2 TEST SUMMARY
- 2.1 Measurement Uncertainty
- 3 TEST FACILITY
- 3.1 Deviation from standard
- 3.2 Abnormalities from standard conditions
- 3.3 Test Location
- 4 GENERAL INFORMATION
- 4.1 Test Location
- 4.2 EUT Peripheral List
- 4.3 Test Peripheral List
- 5 EQUIPMENT USED DURING TEST
- 6 TEST RESULTS
- 6.1 Radio Technical Requirements Specification
- 6.2 E.U.T. Test Conditions
- 6.3 Antenna Requirement
- 6.4 Interference Prevention Function
- 6.5 Frequency Error
- 6.6 Occupied Bandwidth (99%)
- 6.7 Spread Spectrum Bandwidth (90%)
- 6.8 Antenna Power
- 6.9 Spurious Emissions of Tx
- 6.10 Dwell Time
- 6.11 Pseudorandom Frequency Hopping Sequence
- 6.12 RF Accessibility
- 6.13 Spurious Emissions of Rx
- 7 PHOTOGRAPHS
- 7.1 EUT Constructional Details
2 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 | 83.5 MHz 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 | 3 mW /MHz or less Error+20% -80%; 10mW Error+20% -80% (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 |
| 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 |
| Dwell Time | MIC Notice No.88 Appendix No. 43 | less than 0.4sec | 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 |
Remark: EUT: In this whole report EUT means Equipment Under Test. Tx: In this whole report Tx (or tx) means Transmitter. Rx: In this whole report Rx (or rx) means Receiver. RF: In this whole report RF means Radio Frequency.
2.1 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%.
| No. | Item | Uncertainty |
|---|---|---|
| 1 | Frequency Error / 99% & 90% Bandwidth | ± 0.85 x 10-7 |
| 2 | Antenna Power | ± 0.70 dB |
| 3 | Spurious Emissions | ± 0.80 dB |
| 4 | DC / AC Power Source | ±1.4% |
3 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 general Requirements for the competence of testing and calibration laboratories (CNAS-CL01 Accreditation Criteria for the competence of testing and calibration laboratories) on April 18, 2022
- FCC-Registration No.: 703111 Designation Number: CN1313 Dongguan Yaxu (AiT) technology Limited has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files.
- IC -Registration No.: 6819A CAB identifier: CN0122 The 3m Semi-anechoic chamber of Dongguan Yaxu (AiT) technology Limited has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 6819A
- A2LA-Lab Cert. No.: 6317.01 Dongguan Yaxu (AiT) technology Limited has been accredited by A2LA for technical competence in the field of electrical testing, and proved to be in compliance with ISO/IEC 17025: 2017 General Requirements for the Competence of Testing and Calibration Laboratories and any additional program requirements in the identified field of testing.
3.1 Deviation from standard
None
3.2 Abnormalities from standard conditions
None
3.3 Test Location
Company: Dongguan Yaxu (AiT) Technology Limited
Address: No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China
Tel.: +86-769-8202 0499
Fax.: +86-769-8202 0495
4 General Information
| Manufacturer: | Shenzhen DOKE Electronic Co.,Ltd |
| Manufacturer Address: | 801, Building3, 7th Industrial Zone, Yulv Community, Yutang Road, Guangming District, Shenzhen, China. |
| Product Name: | Notebook computer |
| Model No.: | AceBook 8 |
| Brand Name: | Blackview |
| Derivative model No.: | N/A |
| Operating Frequency | 2402 MHz to 2480 MHz |
| Type of Modulation: | GFSK, (π/4)DQPSK, 8DPSK |
| Number of Channels | 79 Channels(for FHSS) 40 Channels(for DSSS) |
| Channel Separation: | 1 MHz (for FHSS) 2 MHz (for DSSS) |
| Dwell time | Per channel is less than 0.4s. |
| Antenna Type | FPC Antenna |
| Antenna gain: | ANT2(AUX):0.5dBi |
| Bluetooth version: | Bluetooth 4.2 |
| Power Supply Range: | DC 12V form adapter Adapter information: Model: M120300-A010JP Input:100-240V~, 50-60Hz, 0.8A Output: DC 12V3.0A 36.0W |
| Battery: | DC7.6V 5000mAh |
| Normal Test Voltage: | The same as above |
| Hard Ware Version: | AN168_MB_R11 |
| Soft Ware Version: | 22H2 |
| Model difference: | N/A |
4.1 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
4.2 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 |
4.3 Test Peripheral List
| No. | Equipment | Manufacturer | EMC Compliance | Model No. | Serial No. | Power cord | Signal cord |
|---|---|---|---|---|---|---|---|
| 1 | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
5 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 |
Note: Calibration by the calibration agencies listed in the table correspond to paragraph 4 (ii) (c) of Article 24-2 in the Radio Law.
6 Test Results
6.1 Radio Technical Requirements Specification
Table 1: Radio Technical Requirements Specification for 2.4 GHz band wide-band low-power data communication system (Item 19 of Article 2-1)
| Items | 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 Others OFDM: 26MHz or less DSSS: 26MHz or less |
| Antenna power | Designated value (1) FH, FH+DS , FH+OFDM: 3mW/MHz (used in the range of 2427 - 2470.75 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 | 1) 12.14 dBi or less in principle 2) In case of 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 (5) Half-power angle of directional antenna (e) in case of the item 2):e ≤ 360/A (The A is 10 in maximum.) |
| 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. |
| Note | DS: Direct spread FH: Frequency hopping OFDM: Orthogonal frequency division multiplexing |
6.2 E.U.T. Test Conditions
Power supply: The EUT has the input voltage to the circuit of RF unit complies with output voltage limitation (±1%) against input voltage fluctuation (±10%). So, all measurements were conducted at only rated voltage DC 12V.
Diagram showing RF circuit voltage fluctuation test setup, indicating points A, B, C, D and DC input.
The measurement result of the voltage fluctuation at RF circuit when DC 12V +/- 10%:
| DC INPUT | DC3V3 |
|---|---|
| 12V | 3.33V |
| 13.2V | 3.33V |
| 10.8V | 3.33V |
Pre-test the EUT in all voltage mode at the DC 13.2V, DC 12V and DC 10.8V and conducted to determine the worst-case mode, only the worst-case results (DC 12V) are recorded in this report.
The EUT has the input voltage to the circuit of RF unit complies with output voltage limitation (±1%) against input voltage fluctuation (±10%). So, all measurements were conducted at only rated voltage DC 12V.
Temperature: 5.0 -35.0 °C
Humidity: 45-85 % RH
Atmospheric Pressure: 1000 -1010 mbar
Test frequencies: If the EUT can be set to 3 of more different (carrier) frequencies in 1 allocated band, testing shall be performed using the Lowest, Middle and the Highest frequency (L, M and H). If there are 2 or fewer frequencies, testing shall be performed with the available frequencies.
Parameters of test software setting
During testing channel & power controlling software provided by the manufacturer was used to control the operating channel as well as the output power level.
| Test software Version | Test program: RTLBTAPP | ||
|---|---|---|---|
| Frequency | 2402 MHz | 2441 MHz | 2480 MHz |
| BT Parameters(1Mbps) | Default | Default | Default |
| BT Parameters(2Mbps) | Default | Default | Default |
| BT Parameters(3Mbps) | Default | Default | Default |
| Frequency | 2402 MHz | 2440 MHz | 2480 MHz |
| BLE Parameters(1Mbps) | Default | Default | Default |
EUT channels and frequencies list:
For FHSS:
| Channel | Frequency (MHz) | Channel | Frequency (MHz) | Channel | Frequency (MHz) |
|---|---|---|---|---|---|
| 0 | 2402 | 27 | 2429 | 54 | 2456 |
| 1 | 2403 | 28 | 2430 | 55 | 2457 |
| 2 | 2404 | 29 | 2431 | 56 | 2458 |
| 3 | 2405 | 30 | 2432 | 57 | 2459 |
| 4 | 2406 | 31 | 2433 | 58 | 2460 |
| 5 | 2407 | 32 | 2434 | 59 | 2461 |
| 6 | 2408 | 33 | 2435 | 60 | 2462 |
| 7 | 2409 | 34 | 2436 | 61 | 2463 |
| 8 | 2410 | 35 | 2437 | 62 | 2464 |
| 9 | 2411 | 36 | 2438 | 63 | 2465 |
| 10 | 2412 | 37 | 2439 | 64 | 2466 |
| 11 | 2413 | 38 | 2440 | 65 | 2467 |
| 12 | 2414 | 39 | 2441 | 66 | 2468 |
| 13 | 2415 | 40 | 2442 | 67 | 2469 |
| 14 | 2416 | 41 | 2443 | 68 | 2470 |
| 15 | 2417 | 42 | 2444 | 69 | 2471 |
| 16 | 2418 | 43 | 2445 | 70 | 2472 |
| 17 | 2419 | 44 | 2446 | 71 | 2473 |
| 18 | 2420 | 45 | 2447 | 72 | 2474 |
| 19 | 2421 | 46 | 2448 | 73 | 2475 |
| 20 | 2422 | 47 | 2449 | 74 | 2476 |
| 21 | 2423 | 48 | 2450 | 75 | 2477 |
| 22 | 2424 | 49 | 2451 | 76 | 2478 |
| 23 | 2425 | 50 | 2452 | 77 | 2479 |
| 24 | 2426 | 51 | 2453 | 78 | 2480 |
| 25 | 2427 | 52 | 2454 | / | / |
| 26 | 2428 | 53 | 2455 | / | / |
Test frequencies are the lowest channel: 0 channel(2402 MHz), middle channel: 39 channel(2441 MHz) and highest channel: 78 channel(2480 MHz)
For DSSS:
| Channel | Frequency (MHz) | Channel | Frequency (MHz) | Channel | Frequency (MHz) |
|---|---|---|---|---|---|
| 0 | 2402 | 14 | 2430 | 28 | 2458 |
| 1 | 2404 | 15 | 2432 | 29 | 2460 |
| 2 | 2406 | 16 | 2434 | 30 | 2462 |
| 3 | 2408 | 17 | 2436 | 31 | 2464 |
| 4 | 2410 | 18 | 2438 | 32 | 2466 |
| 5 | 2412 | 19 | 2440 | 33 | 2468 |
| 6 | 2414 | 20 | 2442 | 34 | 2470 |
| 7 | 2416 | 21 | 2444 | 35 | 2472 |
| 8 | 2418 | 22 | 2446 | 36 | 2474 |
| 9 | 2420 | 23 | 2448 | 37 | 2476 |
| 10 | 2422 | 24 | 2450 | 38 | 2478 |
| 11 | 2424 | 25 | 2452 | 39 | 2480 |
| 12 | 2426 | 26 | 2454 | / | / |
| 13 | 2428 | 27 | 2456 | / | / |
Test frequencies are the lowest channel: 0 channel(2402 MHz), middle channel: 19 channel(2440 MHz) and highest channel: 39 channel(2480 MHz)
6.3 Antenna Requirement
Standard requirement Applicable for equipment with an antenna terminal, including testing terminals) If an antenna connector is available, all relevant tests will be carried out conducted. If not, tests will be carried out in an anechoic room or with a suitable test-fixture.
EUT Antenna The antenna is integrated on the main PCB and no consideration of replacement. The best case gain of the antenna is 0.5dBi.
Image of the EUT's internal antenna components. Labeled 'Antenna1 (MAIN) 2.4GWIFI' and 'Antenna2(AUX) BT+5GWIFI'.
Result: All relevant tests will be carried out conducted.
6.4 Interference Prevention Function
The device consists of the FPCB antenna and 2.4 GHz BT module; Component BT module also can use the protocol function to protect interference come from outside.
We can use a mobile phone installed Bluetooth Terminal software to detect Bluetooth ID information, Test configuration:
Test configuration diagram for Interference Prevention Function: A Bluetooth EUT connected to a Mobile phone.
Test Procedure: The measuring method was according to MIC Notice No.88 Appendix No.43. Run Bluetooth Terminal and keep BT connecting at both mobile phone and EUT. The MIC address will be found in the mobile phone.
Test Results:
Test result: The unit does meet the requirements.
6.5 Frequency Error
Test Requirement: Item 19 of Article 2-1
Tolerance of frequency: ±50×10-6
Temperature: 23.0 °C
Humidity: 55 % RH
Test Status: Test the EUT in transmitting mode without modulation.
Test Configuration: Test configuration diagram for Frequency Error: A PN9 Signal Generator connected to the EUT, which is connected to a Spectrum Analyzer.
Test Procedure:
- Test Conditions: Frequency Counter or Spectrum Analyzer is used for measurement.
- EUT conditions: Modulation/Spread/Hopping OFF, CW Tx
- Spectrum Analyzer conditions: Frequency: Test Frequency, Span 2MHz, RBW 10 kHz (Modulation OFF for FHSS; Modulation ON for DSSS ), VBW 10 kHz (Modulation OFF for FHSS; Modulation ON for DSSS), Sweep Time Auto, Detector mode Positive peak, Indication mode Max hold
Test result: Please refer to Appendix A.1
Note: The nominal frequency shall be confirmed by the applicant and test lab.
Test result: The unit does meet the requirements.
6.6 Occupied Bandwidth (99%)
Test Requirement: Item 19 of Article 2-1
Limits: 83.5MHz or less(FHSS), 26 MHz or less(others)
Temperature: 23.0 °C
Humidity: 55 % RH
Test Status: Pre-Scan has been conducted to determine the worst-case mode from all possible combinations between available modulations, data rates and antenna ports (if EUT with antenna diversity architecture). Following channel(s) was (were) selected for the final test as listed below.
Test Configuration: Test configuration diagram for Occupied Bandwidth: A PN9 Signal Generator connected to the EUT, which is connected to a Spectrum Analyzer.
Test Procedure:
- Test Conditions: Spectrum Analyzer is used for measurement.
- EUT conditions: Modulation/Spread/Hopping ON, PN9 Modulation Tx. For equipment using diffusion code, set to the test diffusion code and modulate with standard coding test signal.
- Spectrum Analyzer conditions: Frequency: Test Frequency, Span: 120 MHz(FHSS), 3MHz(DSSS), RBW: 1 MHz(FHSS), 300 kHz(DSSS), VBW: 1 MHz(FHSS), 300 kHz(DSSS), Sweep Time Auto, detector mode Positive peak, Indication mode Max hold, OBW 99%
Test result: Please refer to Appendix A.4
Test result: The unit does meet the requirements.
6.7 Spread Spectrum Bandwidth (90%)
Test Requirement: Item 19 of Article 2-1
Limit: 500 kHz or more
Temperature: 23.0 °C
Humidity: 55 % RH
Test Status: Pre-Scan has been conducted to determine the worst-case mode from all possible combinations between available modulations, data rates and antenna ports (if EUT with antenna diversity architecture). Following channel(s) was (were) selected for the final test as listed below.
Test Configuration: Test configuration diagram for Spread Spectrum Bandwidth: A PN9 Signal Generator connected to the EUT, which is connected to a Spectrum Analyzer.
Test Procedure:
- Test Conditions: Spectrum Analyzer is used for measurement.
- EUT conditions: Modulation/Spread/Hopping ON, PN9 Modulation Tx. For equipment using diffusion code, set to the test diffusion code and modulate with standard coding test signal.
- Spectrum Analyzer conditions: Frequency: Test Frequency, Span: 120 MHz(FHSS), 3MHz(DSSS), RBW: 300 kHz(FHSS), 300 kHz(DSSS), VBW: 300 kHz(FHSS), 300 kHz(DSSS), Sweep Time Auto, detector mode Positive peak, Indication mode Max hold, OBW 90%
Test result: Please refer to Appendix A.5
Test result: The unit does meet the requirements.
6.8 Antenna Power
Test Requirement: Item 19 of Article 2-1
Limits: 3mW/MHz or less(FHSS), 10mW and less(DSSS)
Temperature: 23.0 °C
Humidity: 55 % RH
Test Status: Pre-Scan has been conducted to determine the worst-case mode from all possible combinations between available modulations, data rates and antenna ports (if EUT with antenna diversity architecture). Following channel(s) was (were) selected for the final test as listed below.
Test Configuration: Test configuration diagram for Antenna Power: A PN9 Signal Generator connected to the EUT, which is connected to a Spectrum Analyzer.
Test Procedure:
- Test Conditions: Power meter or Spectrum Analyzer is used for measurement.
- EUT conditions: Modulation/Spread/Hopping ON, PN9 Modulation Tx. For equipment using diffusion code, set to the test diffusion code and modulate with standard coding test signal.
- Spectrum Analyzer conditions: Frequency: Test Frequency, Span: 120 MHz(for FHSS), 40 MHz(for DSSS), RBW: 1 MHz, VBW: 1 MHz, Sweep Time Auto, detector mode Positive peak, Indication mode Max hold
Test result: Please refer to Appendix A.2, A3
Test result: The unit does meet the requirements.
6.9 Spurious Emissions of Tx
Test Requirement: Item 19 of Article 2-1
Limits: (1) Below 2387 MHz : 2.5μW/MHz (2) 2387 to 2400 MHz : 25μW/MHz (3) 2483.5 through 2496.5 MHz : 25μW/MHz (4) Over 2496.5 MHz : 2.5μW/MHz
Temperature: 23.0 °C
Humidity: 55 % RH
Test Status: Pre-Scan has been conducted to determine the worst-case mode from all possible combinations between available modulations, data rates and antenna ports (if EUT with antenna diversity architecture). Following channel(s) was (were) selected for the final test as listed below.
Test Configuration: Test configuration diagram for Spurious Emissions of Tx: A PN9 Signal Generator connected to the EUT, which is connected to a Spectrum Analyzer.
Test Procedure:
- Test Conditions: Spectrum Analyzer is used for measurement.
- EUT conditions: Modulation/Spread/Hopping ON, , PN9 Modulation Tx. For equipment using diffusion code, set to the test diffusion code and modulate with standard coding test signal.
- Spectrum Analyzer conditions:
Step 1 All spurious are measured from 30 MHz to 13 GHz by peak mode.
Step 2 IF the value measured by Step1 is 2 dB or less, measure in average mode.
Test setup for Step 1: Frequency: 30 MHz – 1000 MHz, RBW 100 kHz (Below 1000 MHz), VBW 100 kHz (Below 1000 MHz); 1000 MHz – 2400 MHz, 2483.5 MHz-13 GHz RBW 1 MHz (above 1000 MHz), VBW 1 MHz (above 1000 MHz). Sweep Time Auto, detector mode Positive peak, Indication mode Max hold.
Test setup for Step 2: Frequency: Spurious Frequency, RBW 100 kHz (Below 1000 MHz), VBW 100 kHz (Below 1000 MHz), RBW 1 MHz (above 1000 MHz), VBW 1 MHz (above 1000 MHz). Sweep Time Auto, Detector mode Sample, Indication mode Max hold.
Test result: Please refer to Appendix A.6
Test result: The unit does meet the requirements.
6.10 Dwell Time
Test Requirement: Item 19 of Article 2-1
Limit: less than 0.4sec
Temperature: 23.0 °C
Humidity: 55 % RH
Test Status: Pre-Scan has been conducted to determine the worst-case mode from all possible combinations between available modulations, data rates and antenna ports (if EUT with antenna diversity architecture). Following channel(s) was (were) selected for the final test as listed below. Modulation/Spread/Hopping ON, Hopping frequency is fixed, Bluetooth equipment is setting DH5 mode
Test Configuration: Test configuration diagram for Dwell Time: A PN9 Signal Generator connected to the EUT, which is connected to a Spectrum Analyzer.
Test Procedure:
- Test Conditions: Spectrum Analyzer is used for measurement.
- EUT conditions: Modulation/Spread/Hopping ON, , Hopping frequency is fixed, Bluetooth equipment is setting DH5 mode. For equipment using diffusion code, set to the test diffusion code and modulate with standard coding test signal.
- Spectrum Analyzer conditions: Frequency: Test Frequency (fixed hopping frequency), Span 0 Hz, RBW 1 MHz, VBW 1 MHz, Sweep Time EUT condition, Trigger Video Trigger. Measures the Transmission time of 1 burst (sec), Measures the Burst number.
- Calculation procedure : Dwell time=[Burst number in a Transmission period] x [Transmission time of 1 burst(s)]
Test result: Please refer to Appendix A.8
Test result: The unit does meet the requirements.
6.11 Pseudorandom Frequency Hopping Sequence
Standard requirement Article 2, Item (19) Notice 88 Appendix 43, 44, 45 requirement: The EUT shall have the capability to transmit or to receive the MAC identification automatically, so that sender and receiver shall exclude other equipment.
EUT Pseudorandom Frequency Hopping Sequence The pseudorandom sequence may be generated in a nine-stage shift register whose 5th and 9th stage outputs are added in a modulo-two addition stage. and the result is fed back to the input of the first stage. The sequence begins with the first ONE of 9 consecutive ONEs; i.e. the shift register is initialized with nine ones.
- Number of shift register stages: 9
- Length of pseudo-random sequence: 29-1 = 511 bits
- Longest sequence of zeros: 8 (non-inverted signal)
Diagram illustrating a Linear Feedback Shift Register for Generation of the PRBS sequence, showing stages and modulo-two addition. An example sequence of numbers is also displayed.
Each frequency used equally on the average by each transmitter. The system receivers have input bandwidths that match the hopping channel bandwidths of their corresponding transmitters and shift frequencies in synchronization with the transmitted signals.
6.12 RF Accessibility
Standard requirement Article 2, Item (19) Notice 88 Appendix 43, 44, 45
The EUT shall be constructed in such a way that sensitive RF parts, (like modulation and oscillator parts) cannot be reached easily by the user. These parts shall be covered by soldered metal caps or glue or by other mechanical covers. If the covers are fixed with screws, these shall be not the common type(s) like a Phillips, but special versions like Torx, so that the user cannot open the device with common tools.
We apply the product for Japan RF certification. We use shiled for preventing end- user to access RF parts easily. The shiled can only be opened by forced, which will result in damaging the case. Please refer to following for photo for details.
Image of the EUT's internal Printed Circuit Board (PCB) showing components and shielding. The text 'AN168_MB_R11' is visible.
6.13 Spurious Emissions of Rx
Test Requirement: Item 19 of Article 2-1
Limits: (1) Below 1 GHz : 4 nW or less (2) 1 GHz and over : 20 nW or less
Temperature: 23.0 °C
Humidity: 55 % RH
Test Status: Pre-Scan has been conducted to determine the worst-case mode from all possible combinations between available modulations, data rates and antenna ports (if EUT with antenna diversity architecture). Following channel(s) was (were) selected for the final test as listed below.
Test Configuration: Test configuration diagram for Spurious Emissions of Rx: A PN9 Signal Generator connected to the EUT, which is connected to a Spectrum Analyzer.
Test Procedure:
- Test Conditions: Spectrum Analyzer is used for measurement.
- EUT conditions: Modulation/Spread/Hopping ON. For equipment using diffusion code, set to the test diffusion code and modulate with standard coding test signal.
- Spectrum Analyzer conditions:
Step 1 All spurious are measured from 30 MHz to 13 GHz by peak mode.
Step 2 IF the value measured by Step1 is 2 dB or less, measure in average mode.
Test setup for Step 1: Frequency: 30 MHz – 2400 MHz , 2483.5 MHz –13 GHz. RBW 100 kHz (30 – 1GHz) , 1 MHz (over 1GHz). VBW 100 kHz (30 – 1GHz) , 1 MHz (over 1GHz). Sweep Time Auto, detector mode Positive peak, Indication mode Max hold.
Test setup for Step 2: Frequency: Spurious Frequency. Span 0 Hz. RBW 100 kHz (30 – 1GHz) , 1 MHz (over 1GHz). VBW 100 kHz (30 – 1GHz) , 1 MHz (over 1GHz). Sweep Time Auto, detector mode Sample, Indication mode Max hold.
Test result: Please refer to Appendix A.7
Note: Pre-scan all test modes, found worst case at GFSK, recorded the worst case results in this report GFSK. Pre-scan all test modes, found worst case at 1M PHY, recorded the worst case results in this report 1M PHY.
Test result: The unit does meet the requirements.
7 Photographs
7.1 EUT Constructional Details
Refer to EUT AIT24021804.
**End of report**
