TÜV Rheinland Test Report

General Remarks

All equipment used during the specified testing period was calibrated according to the test laboratory's calibration program and fulfills the requirements of relevant standards. Traceability of test equipment is ensured by compliance with the management system regulations. Detailed information on test conditions, equipment, and measurement uncertainty is available upon request.

This document was signed digitally. Verification of legal requirements for this document is the responsibility of the user. For verification of the digital signature's validity, a separate document can be requested from TÜV Rheinland's Sales department. Information on verifying document authenticity is available at: go.tuv.com/digital-signature.

Test clauses marked with '*' were subcontracted to qualified subcontractors. Deviations from test specifications or customer requirements are listed in the respective test clauses.

The decision rule for conformity statements is based on the "Zero Guard Band Rule" and "Simple Acceptance" as per ILAC G8:2019 and IEC Guide 115:2021, unless otherwise specified or requested.

Test Sites

Test Facilities: TÜV Rheinland (Shanghai) Co., Ltd. operates test facilities at Workshop14, North Half of Workshop 10 and Workshop 16, Pingqian (Taicang) Modern Industrial Park, No.525, Yuewang Lingang South Road, Shaxi, Taicang, Jiangsu, China. These facilities are equipped for measurement of radio interference according to CISPR 16.

The Federal Communications Commission (FCC) has reviewed these facilities for radiated and conducted emissions and found them compliant with FCC rules (section 2.948), with FCC registration number 930979.

Innovation, Science and Economic Development Canada has also reviewed these facilities and found them compliant, with the description listed under chambers filing number 33038.

Test and Measurement Instruments

The following table lists the test and measurement equipment used:

Traceability: All measurement equipment calibrations are traceable to NIST or equivalent nationally recognized standards organizations.

Calibration: Equipment requiring calibration is calibrated periodically by the manufacturer or according to specifications. Equipment is also verified for proper performance regularly using in-house standards.

Measurement Uncertainty

General Product Information

Product Function and Intended Use

The EUT (Equipment Under Test) is a LED lamp supporting Bluetooth, Zigbee, and Thread. This report focuses on evaluating the RF characteristics of the Thread functionality.

Ratings and System Details

Technical Specification of EUT

• General Description: Self-ballasted LED lamps
• Product Name: LED2406G4NA
• Operation Voltage: AC 120V, 60Hz
• Test Voltage: DC 3.3V (for RF conducted and radiated tests); AC 120V, 60Hz (for conducted emission test)
• RF Technical: 1) BLE, 2) Zigbee, 3) Thread

Technical Specification of Thread

• Frequency Range: 2405~2480MHz
• Modulation Type: OQPSK
• Antenna Type: PCB Antenna
• Antenna Gain: -1.51 dBi (declared by client)

Operation Channel List

Independent Operation Modes

Test frequencies used are the lowest channel (2405 MHz), middle channel (2445 MHz), and highest channel (2480 MHz). The basic operation modes are: A. Thread transmitting mode, B. Radio operating mode.

Noise Generating and Noise Suppressing Parts

Refer to the Circuit Diagram.

Test Set-up and Operation Modes

Principle of Configuration Selection

The EUT was configured to measure its maximum power level, with test modes adapted according to the instructions for use.

Test Operation and Test Software

Testing was performed according to ANSI C63.10: 2013. The test software used was sscom 5.13.1.

Special Accessories and Auxiliary Equipment

Countermeasures to achieve EMC Compliance

Null.

Test Results

Conducted Testing at Antenna Port

5.1.1 Antenna Requirement

RESULT: Pass

The EUT features an internal PCB antenna with a declared directional gain of -1.51 dBi. It is permanently attached and not designed for replacement, thus complying with the relevant provisions.

Antenna Requirement (FCC 15.203)

• Requirement: Only the furnished antenna shall be used with the device.
• Results: Antenna type: PCB antenna
• Verdict: Pass

Antenna Requirement (FCC 15.204)

• Requirement: Intentional radiators must be operated only with authorized antennas.
• Results: Only one PCB antenna is used.
• Verdict: Pass

External Control (RSS-Gen 6.4)

• Requirement: The device must not have external user-accessible controls that enable operation in violation of regulatory requirements.
• Results: The device has no such controls.
• Verdict: PASS

Antenna Requirement (RSS-Gen 6.8)

• Requirement: RF output power measurements must state the effective antenna gain.
• Results: Antenna Type: PCB Antenna; Gain: -1.51 dBi.
• Verdict: PASS

5.1.2 6dB & 99% Bandwidth

RESULT: Pass

Date of testing: 2025-02-13

Ambient temperature: 24.2°C

Relative humidity: 59.5%

Atmospheric pressure: 101kPa

Test requirement: FCC Part 15.247(a)(2), RSS-247 Issue 3, Clause 5.2(a)

Test procedure: ANSI C63.10: 2013

Test voltage: DC 3.3V

Test modes applied: A

6dB Bandwidth

Measurements were taken at 2405MHz, 2445MHz, and 2480MHz. The bandwidths were found to be 1.450 MHz, 1.300 MHz, and 1.500 MHz respectively, all within the specified limits.

[Graph Description: Plot showing the 6 dB bandwidth measurement for each frequency, displaying signal level in dBm versus frequency in MHz, with markers indicating the bandwidth.]

99% Occupied Channel Bandwidth

Measurements were taken at 2405MHz, 2445MHz, and 2480MHz. The 99% occupied bandwidths were found to be 2.025 MHz for all frequencies, within the specified limits.

[Graph Description: Plot showing the 99% occupied bandwidth measurement for each frequency, displaying signal level in dBm versus frequency in MHz, with markers indicating the occupied bandwidth.]

5.1.3 Output Power

RESULT: Pass

Date of testing: 2025-02-13

Ambient temperature: 24.2°C

Relative humidity: 59.5%

Atmospheric pressure: 101kPa

Test requirement: FCC Part 15.247(b)(3), RSS-247 Issue 3, Clause 5.4(d)

Test procedure: ANSI C63.10: 2013

Test voltage: DC 3.3V

Test modes applied: A

Note: Cable loss was accounted for. EIRP (Effective Isotropic Radiated Power) is calculated as Conducted Output Power + Antenna Gain (-1.51dBi), which is well below the 4 W (36dBm) limit.

5.1.4 Power Spectral Density

RESULT: Pass

Date of testing: 2025-02-13

Ambient temperature: 24.2°C

Relative humidity: 59.5%

Atmospheric pressure: 101kPa

Test requirement: FCC Part 15.247(e), RSS-247 Issue 3, Clause 5.2(b)

Test procedure: ANSI C63.10: 2013

Test voltage: DC 3.3V

Test modes applied: A

Measurements of Power Spectral Density (PSD) were performed at 2405MHz, 2445MHz, and 2480MHz. The results were 3.367 dBm, 2.803 dBm, and 3.700 dBm respectively, all below the limit of 8.0 dBm.

[Graph Description: Plots showing Peak Power Spectral Density measurements for each frequency, displaying signal level in dBm versus frequency in MHz, with limit lines indicated.]

5.1.5 Conducted Band Edge and out-of Band Emissions

RESULT: Pass

Date of testing: 2025-01-23

Ambient temperature: 24.0°C

Relative humidity: 56.5%

Atmospheric pressure: 101kPa

Test requirement: FCC Part 15.247(d), RSS-247 Issue 3, Clause 5.5

Test procedure: ANSI C63.10: 2013

Test voltage: DC 3.3V

Test modes applied: A

[Figure 1 Description: Reference level plots for conducted emissions at 2405MHz, 2445MHz, and 2480MHz.]

[Figure 2 Description: Conducted Spurious Emission plots for 2405MHz, 2445MHz, and 2480MHz.]

[Figure 3 Description: Conducted Band Edge plots for 2405MHz and 2480MHz.]

Emission in the Frequency Range up to 30MHz

5.2.1 Conducted Emission

RESULT: N/A

Date of testing: 2025-01-20

Ambient temperature: 22.0°C

Relative humidity: 55.0%

Atmospheric pressure: 101kPa

Test requirement: FCC Part 15.207 (a), RSS-Gen Issue 5, Clause 8.8

Test procedure: KDB 558074 D01v05r02, ANSI C63.10: 2013

Test voltage: AC 120V, 60Hz

Test modes applied: B

[Figure 4 Description: Conducted Emission plot for Line L.]

[Figure 5 Description: Conducted Emission plot for Line N.]

The tables under Figures 4 and 5 detail the QuasiPeak and Average measurements, limits, and margins for conducted emissions across various frequencies.

Emission in the Frequency Range above 30MHz

5.3.1 Radiated Band-Edge

RESULT: Pass

Date of testing: 2025-01-15

Ambient temperature: 22.8°C

Relative humidity: 53.0%

Atmospheric pressure: 101kPa

Test requirement: FCC Part 15.247(d), FCC Part 15.205(a), FCC Part 15.209(a), RSS-Gen Clauses 8.9, 8.10, RSS-247 Clause 5.5

Test procedure: ANSI C63.10: 2013

Test voltage: DC 3.3V

Test modes applied: A

[Figure 6 Description: Radiated Band-Edge plot for 2405MHz, Horizontal polarization.]

[Figure 7 Description: Radiated Band-Edge plot for 2405MHz, Vertical polarization.]

[Figure 8 Description: Radiated Band-Edge plot for 2480MHz, Horizontal polarization.]

[Figure 9 Description: Radiated Band-Edge plot for 2480MHz, Vertical polarization.]

5.3.2 Radiated Spurious Emission

RESULT: Pass

Date of testing: 2025-02-13

Ambient temperature: 22.9°C

Relative humidity: 56.8%

Atmospheric pressure: 101kPa

Test requirement: FCC Part 15.247(d), FCC Part 15.209(a), RSS-Gen Clause 8.9, RSS-247 Clause 5.5

Test procedure: ANSI C63.10: 2013

Test voltage: DC 3.3V

Test modes applied: A

Note: No emission was found in the frequency range from 18GHz to 25GHz.

[Figure 10 Description: Radiated Spurious Emission plots for 2405MHz across different frequency ranges (30MHz-1GHz, 1GHz-7GHz, 7GHz-18GHz) for Horizontal and Vertical polarizations.]

[Figure 11 Description: Radiated Spurious Emission plots for 2445MHz across different frequency ranges (30MHz-1GHz, 1GHz-7GHz, 7GHz-18GHz) for Horizontal and Vertical polarizations.]

[Figure 12 Description: Radiated Spurious Emission plots for 2480MHz across different frequency ranges (30MHz-1GHz, 1GHz-7GHz, 7GHz-18GHz) for Horizontal and Vertical polarizations.]

The tables under Figures 10, 11, and 12 detail the QuasiPeak, MaxPeak, and Average measurements, limits, and margins for radiated emissions across various frequencies and polarizations.

List of Tables

• Table 1: List of Test and Measurement Equipment
• Table 2: Measurement Uncertainty
• Table 3: Technical Specification of EUT
• Table 4: Operation Channel List
• Table 5: Power parameter value
• Table 6: Auxiliary Equipment
• Table 7: Antenna Requirement
• Table 8: Peak Output Power

List of Figures

• Figure 1: Reference level
• Figure 2: Conducted Spurious Emission
• Figure 3: Conducted Band Edge
• Figure 4: Conducted Emission, L
• Figure 5: Conducted Emission, N
• Figure 6: Radiated Band-Edge, 2405MHz, H
• Figure 7: Radiated Band-Edge, 2405MHz, V
• Figure 8: Radiated Band-Edge, 2480MHz, H
• Figure 9: Radiated Band-Edge, 2480MHz, V
• Figure 10: Radiated Spurious Emission, 2405MHz
• Figure 11: Radiated Spurious Emission, 2445MHz
• Figure 12: Radiated Spurious Emission, 2480MHz