Radio Test Report

For

Shenzhen city Doowis Industrial Co., Ltd

Device Under Test (EUT)

Test Model: W5 Tablet PC

Test Model: W5

Additional Model No.: W5A, W6, W7, W8, W9, W10, F3A, F5, F5A, F6, F7, F8, F10, H5A, H6, H7, H8, H9, H10

Model Declaration: PCB board, structure and internal of these models are the same, so no additional models were tested.

Power Supply: Input: 5.0V=2.0A (For Adapter Input: 100-240V~, 50/60Hz); Output: 5.0V=2.0A 10.0W; DC 3.8V by Rechargeable Li-ion Battery, 5000mAh

Hardware Version: BND-N863-C V2.0

Software Version: N/A

WIFI (2.4G Band)

Frequency Range: 2412-2472MHz for 802.11b/g/n(HT20); 2422-2462MHz for 802.11n(HT40)

Channel Spacing: 5MHz

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

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

Declared Antenna Power: 802.11b: 6.0mW/MHz; 802.11g: 6.0mW/MHz; 802.11n(HT20): 6.0mW/MHz; 802.11n(HT40): 3.0mW/MHz

Antenna Description: PIFA Antenna, 1.8dBi (max.)

WIFI (5.2G Band)

Frequency Range: 5180-5240MHz

Channel Number: 4 Channels for 20MHz bandwidth; 2 Channels for 40MHz bandwidth; 1 Channel for 80MHz bandwidth

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

Declared Antenna Power: 802.11a: 5.0mW/MHz; 802.11n(HT20): 5.0mW/MHz; 802.11ac(VHT20): 5.0mW/MHz; 802.11n(HT40): 3.0mW/MHz; 802.11ac(VHT40): 3.0mW/MHz

Antenna Description: PIFA Antenna, 1.5dBi (max.)

WIFI (5.3G Band)

Frequency Range: 5260~5320MHz

Channel Number: 4 channels for 20MHz bandwidth; 2 channels for 40MHz bandwidth; 1 Channel for 80MHz bandwidth

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

Declared Antenna Power: 802.11a: 3.0mW/MHz; 802.11n(HT20): 3.0mW/MHz; 802.11n(HT40): 2.0mW/MHz; 802.11ac(VHT20): 3.0mW/MHz; 802.11ac(VHT40): 2.0mW/MHz; 802.11ac(VHT80): 1.0mW/MHz

Antenna Description: PIFA Antenna, 1.7dBi (max.)

WIFI (5.6G Band)

Frequency Range: 5500~5720MHz

Channel Number: 12 Channels for 20MHz bandwidth; 6 Channels for 40MHz bandwidth; 3 channels for 80MHz bandwidth

Modulation Type: 802.11a: OFDM (64QAM, 16QAM, QPSK, BPSK); 802.11ac: OFDM (256QAM, 64QAM, 16QAM, QPSK, BPSK)

Declared Antenna Power: 802.11a: 6.0mW/MHz; 802.11n(HT20): 6.0mW/MHz; 802.11n(HT40): 5.0mW/MHz; 802.11ac(VHT20): 6.0mW/MHz; 802.11ac(VHT40): 5.0mW/MHz; 802.11ac(VHT80): 1.0mW/MHz

Antenna Description: PIFA Antenna, 2.2dBi (max.)

Test Methodology

2.1. EUT Exercise

The EUT was operated in the engineering mode to fix the TX frequency for the purpose of the measurements. According to its specifications, the EUT must comply with the requirements of ARIB STD-T66 Version 3.7/2014.

2.2. Measurement Uncertainty

(1). This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=2.

2.3. Table for Parameters of Test Software Setting

During testing, Channel & Power Controlling commands provided by the customer was used to control the operating channel as well as the output power level. The RF output power selection is for the setting of RF output power expected by the customer and is going to be fixed on the firmware of the final end product.

Power Parameters:

***Note: The output power level of the software was chosen as default only.

2.4. Description of Modes

Note: According exploratory test, EUT will have maximum output power in those data rate, so those data rate were used for all test.

2.5. Test Voltage

POWER SUPPLY VOLTAGE FLUCTUATION TEST

Note: As the EUT was powered by DC 3.8V, and with the voltage stabilizing circuit used, the chip voltage received floating not exceed ±1% of nominal condition when working on extreme voltage, so all test performed at nominal voltage only.

System Test Configuration

3.1. Justification

The system was configured for testing in engineering mode.

3.2. EUT Exercise Software

N/A.

3.3. Special Accessories

N/A.

3.4. Block Diagram/Schematics

Please refer to the related document.

3.5. Equipment Modifications

Shenzhen LCS Compliance Testing Laboratory Ltd. has not done any modification on the EUT.

Summary of Test Results

Note: (1) N/A is an abbreviation for Not Applicable.

(2) N/T means this test item is not tested.

(3) This is a 2.4G WIFI RF test report for W5 Tablet PC.

Test Result

5.1. Frequency Tolerance

5.1.1. Standard Applicable

Tolerance of frequency shall be ±50x10^-6.

5.1.2. Measuring Instruments

Please refer to section 6 of equipments list in this report.

5.1.3. Test Procedures

1. Set EUT work in test mode as described in clause 2.4.
2. Connected the EUT's antenna port to the Spectrum Analyzer by suitable attenuator, set the Spectrum Analyzer as below:
   Centre Frequency: The centre frequency of the channel under test.
   Resolution BW: 10 KHz.
   Video BW: 10 KHz.
   Span: 1MHz.
   Detector: Peak.
   Trace Mode: Max Hold.
3. When the trace is complete, find the peak value of the power envelope and record.

5.1.4. Test Setup Layout

[Diagram: Spectrum Analyzer connected to EUT via attenuator]

5.1.5. EUT Operation during Test

The EUT was programmed to be in continuously transmitting mode.

5.1.6. Test Result

Please refer to the Appendix A.1 for 2.4G WIFI RF Test Data.

5.2. Antenna Power

5.2.1. Standard Applicable

Upper Limit of EIRP for Modulation Systems

5.2.2. Measuring Instruments

Please refer to section 6 of equipments list in this report.

5.2.3. Test Procedures

1. The EUT was programmed to be in continuously transmitting mode.
2. A power meter is connected on the EUT and Record reading B
3. Calculate antenna power density is B

5.2.4. Test Setup

[Diagram: Power Meter connected to EUT]

5.2.5. EUT Operation during Test

The EUT was programmed to be in continuously transmitting mode.

5.2.6. Test Result

Please refer to the Appendix A.2 for 2.4G WIFI RF Test Data.

5.3. Occupied Frequency Bandwidth

5.3.1. Standard Applicable

Permissible value for occupied bandwidth using the FH system, a hybrid system combining DS and FH systems, or a hybrid system combining FH and OFDM systems shall be 83.5 MHz or less, while necessary bandwidth (minimum occupied bandwidth sufficient to ensure information transmission of required quality at a required transmission rate for the system used under specified conditions for a given emission type) using a system other than any of the above shall be 26 MHz or less.

5.3.2. Measuring Instruments

Please refer to section 6 of equipments list in this report.

5.3.3. Test Procedures

1. Set EUT work in test mode as described in clause 2.4.
2. Connected the EUT's antenna port to the Spectrum Analyzer by suitable attenuator, set the Spectrum Analyzer as below:
   Centre Frequency: The centre frequency of the channel under test.
   RBW/VBW= 300 KHz/300KHz for WIFI.
   Span: Wide enough to cover the complete power envelope of the signal of the EUT.
   Sweep mode: Continuous sweeping.
   Detector: Peak.
   Trace Mode: Max Hold.
3. When the trace is complete, measure the occupied bandwidth (99% bandwidth) with spectrum analyzer's bandwidth measure function.

5.3.4. Test Setup Layout

[Diagram: Spectrum Analyzer connected to EUT]

5.3.5. EUT Operation during Test

The EUT was programmed to be in continuously transmitting mode.

5.3.6. Test Result of 99% Spectrum Bandwidth

Please refer to the Appendix A.3 for 2.4G WIFI RF Test Data.

5.4. Spread Bandwidth

5.4.1. Standard Applicable

In spread spectrum systems, spread bandwidth (which refers to a frequency bandwidth with an upper limit and lower limit such that each of the mean powers radiated above the upper frequency limit and below the lower frequency limit is equal to 5 % of the total mean power radiated; this also applies hereafter) shall be 500 kHz or more.

5.4.2. Measuring Instruments

Please refer to section 6 of equipments list in this report.

5.4.3. Test Procedures

1. Set EUT work in test mode as described in clause 2.4.
2. Connected the EUT's antenna port to the Spectrum Analyzer by suitable attenuator, set the Spectrum Analyzer as below:
   Centre Frequency: The centre frequency of the channel under test.
   RBW/VBW= 300 KHz/300KHz for WIFI.
   Span: Wide enough to cover the complete power envelope of the signal of the EUT.
   Detector: Peak.
   Trace Mode: Max Hold.
3. When the trace is complete, measure the occupied bandwidth (90% bandwidth) with spectrum analyzer's bandwidth measure function.

5.4.4. Test Setup Layout

[Diagram: Spectrum Analyzer connected to EUT]

5.4.5. EUT Operation during Test

The EUT was programmed to be in continuously transmitting mode.

5.4.6. Test Result of 90% Occupied Bandwidth

Please refer to the Appendix A.4 for 2.4G WIFI RF Test Data.

5.5. Transmitter Spurious Emissions (conducted)

5.5.1. Standard Applicable

Permissible mean power of spurious emission of each frequency supplied to a feeder, that is, mean power of spurious emission in the 1 MHz bandwidth at frequency f other than frequency band used shall be as follows:

STD-T66

• a. 30MHz - 1,000MHz: 2.5 μW or less
• b. 1,000MHz - 2,387MHz: 2.5 μW or less
• c. 2,387MHz - 2,400MHz and 2,483.5MHz - 2,496.5MHz: 25 µW or less
• d. 2,496.5MHz - 13GHz: 2.5 μW or less

STD-T33

• a. 2,458MHz ≤ f ≤2,471MHz and 2,497MHz < f ≤ 2,510MHz: 25 µW or less
• b. 2,458MHz > f and 2,510MHz < f: 2.5 µW or less

5.5.2. Measuring Instruments

Please refer to section 6 of equipments list in this report.

5.5.3. Test Procedures

1. Set EUT work in test mode as described in clause 2.4.
2. Connected the EUT's antenna port to the Spectrum Analyzer by suitable attenuator, set the Spectrum Analyzer as below:
   Below 1GHz: RBW/VBW= 1MHz/ 3MHz
   Above 1GHz: RBW/VBW= 1MHz / 3MHz.
   Detector: Peak.
   Trace Mode: Max Hold.
3. All the emissions from 30MHz to 13GHz were measured and record.

5.5.4. Test Setup Layout

[Diagram: Spectrum Analyzer connected to EUT]

5.5.5. EUT Operation during Test

The EUT was programmed to be in continuously transmitting mode.

5.5.6. Test Results

Please refer to the Appendix A.5 for 2.4G WIFI RF Test Data.

-Note:SA set to from 2.4965GHz to 13GHz, plot shows from 2.497GHz to 13GHz as of SA's default format.

5.6. Carrier sensing function

5.6.1. Standard Applicable

5.6.2. Measuring Instruments

Please refer to section 6 of equipments list in this report. The following table is the setting of spectrum analyzer and receiver.

5.6.3. Test Procedures

1. SSG adjusted the frequency as same as the EUT transmitted signal and emitted the absence of modulation from SSG and power level is (On 22.79+Gr-20*log(f) [dBm] (Gr: dBi: f: MHz). Then turn off the RF signal of SSG.
2. EUT have transmitted the maximum modulation signal and fixed channelize
3. Setting of SA is following as: RB:1MHz / VB:1MHz / SPAN: 50MHz / AT: 10dB /Ref: 0dBm / Sweep time: Auto / Sweep Mode: Continuous sweep / Detect mode: Positive peak.
4. SSG RF Signal On.
5. EUT shall be stop the transmitted any signal and SSG RF Signal Off. Then EUT will be continuous transmitted signal.

5.6.4. Test Setup Layout

[Diagram: Signal Generator -> Attenuator -> EUT -> Peripheral; Spectrum Analyzer -> Attenuator -> EUT]

5.6.5. EUT Operation during Test

The EUT was programmed to be in normal transmitting mode.

5.6.6. Test Result

Note: 1.this test item only applies to those mode with bandwidth greater than 20MHz; after a carrier signal 22.79+Gr-20*log(f)[dBm] was injected into EUT, it stopped transmission.

2. The EUT has three carriers in the test.

5.7. Interference prevention function

5.7.1. Standard Applicable

5.7.2. Measuring ID Code Software

5.7.3. Test Procedures

1. In the case that the EUT has the function of automatically transmitting the identification code: a. Transmit the predetermined identification codes from EUT. b. Check the transmitted identification codes with the demodulator.
2. In the case of receiving the identification code: a. Transmit the predetermined identification codes from the counterpart. b. Check if communication is normal. c. Transmit the other signals than predetermined ID codes from the counterpart. d. check if the EUT stops the transmission, or if it displays that identification codes are different from the predetermined ones.

5.7.4. Test Setup Layout

[Diagram: PC with Net Tool Software connected to Peripheral and EUT]

5.7.5. EUT Operation during Test

The EUT was programmed to be in normal transmitting mode.

5.7.6. Test Result

MAC Address: 26:A4:E3:DA:11C:4F
Complies.

5.8. Secondary Radiated Emissions

5.8.1. Standard Applicable

The limit on secondary emissions radiated from the receiving equipment within which the function of other radio equipment will not be impaired shall be, in terms of the power of a dummy antenna circuit that has the same electrical constant as the receiving antenna, 4nW or less at a frequency below 1 GHz and 20 nW or less at a frequency of 1 GHz or higher as measured using the circuit.

5.8.2. Measuring Instruments

Please refer to section 6 of equipments list in this report.

5.8.3. Test Procedures

1. Set EUT work in test mode as described in clause 2.4.
2. Connected the EUT's antenna port to the Spectrum Analyzer by suitable attenuator, set the Spectrum Analyzer as below:
   Resolution BW: 100 KHz for frequency below 1GHz and 1MHz for frequency above 1GHz
   Video BW: 300 KHz for frequency below 1GHz and 3MHz for frequency above 1GHz
   Detector: Peak.
   Trace Mode: Max Hold.
3. All the emissions from 30MHz to 12.5GHz were measured and record.

5.8.4. Test Setup

[Diagram: Spectrum Analyzer connected to EUT]

5.8.5. EUT Operation during Test

The EUT was programmed to be in continuously transmitting mode.

5.8.6. Test Results

Please refer to the Appendix A.6 for 2.4G WIFI RF Test Data.

Photographs of Test Setup

Please refer to separated files Appendix E for Test Setup Photographs

External Photographs of the EUT

Please refer to separated files Appendix F for External Photos of EUT

Internal Photographs of the EUT

Please refer to separated files Appendix G for Internal Photos of EUT

List of Measuring Equipments

Note: All equipment is calibrated through GUANGZHOU LISAI CALIBRATION AND TEST CO., LTD and according to calibration method of Article102-18 paragraph (1).