FCC TEST REPORT

Introduction

This document presents the results of the FCC Part 15 Subpart C compliance testing for the Shenzhen LINGDU Auto Electronics Co., Ltd. Model SP300, identified as North American Palm Vein WiFi Stuck.

Applicant: Shenzhen LINGDU Auto Electronics Co., Ltd.

Address: 1807-1808, Jinhua Building, No. 468, Minzhi Avenue Longhua New District, Shenzhen China

Testing Laboratory: Shenzhen LCS Compliance Testing Laboratory Ltd.

Address: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China

Date of Report: September 03, 2024

1. General Information

1.1. Description of Device (EUT)

EUT: North American Palm Vein WiFi Stuck

Test Model: SP300

Additional Model Numbers: SP300K, SP300L, SP300T, SP300S, SP300R, SP300M, SP300N, SP300A, SP300B, SP300D

Model Declaration: PCB board, structure and internal of these model(s) are the same, So no additional models were tested.

Ratings: Input: 5V 2A; DC 3.6V by Rechargeable Li-ion Battery, 7800mAh

Hardware Version: Front motherboard: S300-FRONT-V03; Rear main board: S300-REARLOCK_V03; touch tablet: S300_TOUCH_V02

Software Version: V2011021

Bluetooth

• Frequency Range: 2402MHz~2480MHz
• Channel Number: 40 channels for Bluetooth V5.0 (DTS)
• Channel Spacing: 2MHz for Bluetooth V5.0 (DTS)
• Modulation Type: GFSK for Bluetooth V5.0 (DTS)
• Bluetooth Version: V5.0
• Antenna Description: PCB Antenna, 1.01dBi (Max.)

WIFI (2.4G Band)

• Frequency Range: 2412MHz~2462MHz
• Channel Spacing: 5MHz
• Channel Number: 11 Channels for 20MHz bandwidth (2412~2462MHz)
• Modulation Type: IEEE 802.11b: DSSS (CCK, DQPSK, DBPSK); IEEE 802.11g: OFDM (64QAM, 16QAM, QPSK, BPSK); IEEE 802.11n: OFDM (64QAM, 16QAM, QPSK, BPSK)
• Antenna Description: PCB Antenna, 1.01dBi (Max.)

2. Test Methodology

All measurements were conducted following ANSI C63.10-2013.

2.3. General Test Procedures

2.3.1 Conducted Emissions

The EUT was placed on a turntable 0.8 m above the ground plane. Measurements were taken in the frequency range of 0.15 MHz to 30 MHz using Quasi-peak and average detector modes.

2.3.2 Radiated Emissions

The EUT was placed on a turntable 0.8 m above the ground plane (below 1GHz) or 1.5 m above the ground plane (above 1GHz). The turntable rotated 360 degrees to find the maximum emission level. The distance to the receiving antenna was 3 meters, with antenna height varied from 1m to 4m. Polarization was tested both horizontally and vertically.

4. Summary of Test Results

Remark: 1. Note 1 – Test results inside test report; 2. Note 2 – Test results in other test report (RF Exposure Evaluation);

5. Test Results

5.1. 6 dB Spectrum Bandwidth Measurement

Standard Applicable: According to §15.247(a) (2): For digital modulation systems, the minimum 6 dB bandwidth shall be at least 500 kHz.

Test Procedures: The transmitter output was connected to the spectrum analyzer. RBW/VBW was set to 100 KHz/300KHz for 6dB bandwidth measurement.

Test Setup: A spectrum analyzer connected to the EUT.

Test Result: PASS. Please refer to Appendix B.1.

Remarks: Measured 6dB bandwidth at difference data rate for each mode and recorded worst case. Test results include cable loss. Worst case data at 1Mbps for IEEE 802.11b, 6Mbps for IEEE 802.11g, 6.5Mbps for IEEE 802.11n HT20.

5.2. Radiated Emissions Measurement

Standard Applicable: FCC Part 15.205 (a) and 15.247 (d) concerning spurious emissions and restricted bands.

Test Procedures: Measurements were performed from 9 kHz to 18 GHz and above, following specific sequences for different frequency ranges (9 kHz-30 MHz, 30 MHz-1 GHz, 1 GHz-18 GHz, above 18 GHz).

Test Setup Layout Description:

• Below 30MHz: EUT on a turntable, 3m distance to RX Antenna, 0.8m height for turntable.
• Below 1GHz: EUT on a turntable, 3m distance to Bi-log Antenna, 0.8m height for turntable, antenna height 1-3m.
• Above 1GHz: EUT on a turntable, 3m distance to Horn Antenna, 1.5m height for turntable, antenna height 1-2.5m. Extrapolation factor of 20 dB/decade used for distances other than 3m.

Field Strength Calculation: FS (dBuV/m) = RA (dBuV) + AF (dB/m) + CL (dB) – AG (dB)

Results: PASS. Detailed results are presented in the following tables and appendices.

Radiated Emissions (30MHz~1GHz) - Horizontal

Radiated Emissions (30MHz~1GHz) - Vertical

Note: Pre-scan all modes and recorded the worst case results in this report IEEE 802.11b mode (Middle Channel).

5.3. Maximum Peak Conducted Output Power Measurement

Standard Applicable: FCC §15.247(b) limits peak conducted output power to 30dBm, with reductions for antenna gain exceeding 6dBi.

Test Procedures: Measured using a broadband peak RF power meter.

Test Result: PASS. Please refer to Appendix B.2.

Remarks: Worst case data at 1Mbps for IEEE 802.11b, 6Mbps for IEEE 802.11g, 6.5Mbps for IEEE 802.11n HT20.

5.4. Power Spectral Density Measurement

Standard Applicable: FCC §15.247(e) limits power spectral density to 8dBm in any 3 kHz band.

Test Procedures: Measured using a Spectrum Analyzer with RBW=3 kHz, VBW>=3*RBW.

Test Result: PASS. Please refer to Appendix B.3.

Remarks: Worst case data at 1Mbps for IEEE 802.11b, 6Mbps for IEEE 802.11g, 6.5Mbps for IEEE 802.11n HT20.

5.5. Band Edge Measurements and Conducted Spurious Emissions Test

Standard Applicable: FCC §15.247(d) requires emissions outside the operating band to be at least 20 dB below the in-band power.

Test Procedures: Transmitter output connected to a spectrum analyzer with RBW=100 KHz, VBW=300 KHz.

Test Result: PASS. Please refer to Appendix B.4 for Band Edge Measurements and Appendix B.5 for Conducted Spurious Emissions.

Remarks: Worst case data at 1Mbps for IEEE 802.11b, 6Mbps for IEEE 802.11g, 6.5Mbps for IEEE 802.11n HT20.

5.8. AC Power Line Conducted Emissions

Standard Applicable: FCC §15.207 (a) limits conducted emissions on AC power lines to 250 microvolts (66-56 dBμV for Quasi-peak, 56-46 dBμV for Average, decreasing linearly with frequency).

Test Setup Description: EUT connected to EMI Receiver via LISN, with a vertical reference plane.

Test Result: PASS. Test data presented on the following pages.

AC Conducted Emission (Line)

AC Conducted Emission (Neutral)

Note: Pre-scan all modes and recorded the worst case results in this report IEEE 802.11b mode (Middle Channel).

5.9. Antenna Requirements

Standard Applicable: According to antenna requirement of §15.203 and §15.247(4)(1).

Antenna Connector Construction: The antenna is a PCB Antenna with a gain of 1.01dBi (Max.). It is permanently attached and not designed for user replacement.

Results: Compliance.

6. List of Measuring Equipments

7. Test Setup Photographs of EUT

Please refer to separated files for Test Setup Photos of the EUT.

8. Exterior Photographs of the EUT

Please refer to separated files for External Photos of the EUT.

9. Interior Photographs of the EUT

Please refer to separated files for Internal Photos of the EUT.