Shenzhen CTL Testing Technology Co., Ltd. TEST REPORT

1.1. TEST STANDARDS

The tests were performed according to following standards:

• FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz
• ANSI C63.10: 2013: American National Standard for Testing Unlicensed Wireless Devices
• KDB 558074 D01 v05r02: KDB558074 D01 15.247 Meas Guidance v05r02

1.2. Test Description

1.3.1 Address of the test laboratory

Shenzhen CTL Testing Technology Co.,Ltd. Floor 1-A, Baisha Technology Park, No. 3011, Shahexi Road, Nanshan, Shenzhen 518055 China. The facility includes a 3m semi-anechoic chamber and two line conducted labs, meeting ANSI C63.10 and CISPR 32/EN 55032 requirements.

1.3.2 Laboratory accreditation

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

• CNAS-Lab Code: L7497: Compliant with CNAS-CL01 Accreditation Criteria (ISO/IEC 17025: 2005).
• A2LA-Lab Cert. No. 4343.01: Accredited for technical competence in electrical testing, compliant with ISO/IEC 17025: 2005.
• IC Registration No.: 9618B: Registered by Innovation, Science and Economic Development Canada.
• FCC-Registration No.: 399832, Designation No.: CN1216: Registered with the FCC.

1.4. Statement of the measurement uncertainty

The data and results are true and accurate. Measurement uncertainty was calculated according to CISPR 16-4 and documented in the Shenzhen CTL Testing Technology Co., Ltd. quality system. The manufacturer is solely responsible for continued compliance.

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

2.1. Environmental conditions

During measurements, the environmental conditions were within the following ranges:

• Normal Temperature: 25°C
• Relative Humidity: 55 %
• Air Pressure: 101 kPa

2.2. General Description of EUT

Note1: For more details, please refer to the user's manual of the EUT. Note2: Antenna gain provided by the applicant.

2.3. Description of Test Modes and Test Frequency

The applicant provided communication tools software to control the EUT for continuous transmitting (Duty Cycle > 98%) and receiving mode. There are 40 channels available, and Channels 00, 19, and 39 were selected for BLE testing.

Operation Frequency List:

Note: The lines displayed in grey indicate the channels selected for testing.

2.4. Equipments Used during the Test

The calibration interval was one year.

2.5. Related Submittal(s) / Grant (s)

This submittal(s) (test report) is intended to comply with Section 15.247 of the FCC Part 15, Subpart C Rules.

2.6. Modifications

No modifications were implemented to meet testing criteria.

3.1. Conducted Emissions Test

LIMIT

FCC CFR Title 47 Part 15 Subpart C Section 15.207

* Decreases with the logarithm of the frequency.

TEST CONFIGURATION

Description: The test setup involves the EUT connected to a Line Impedance Stabilization Network (LISN) within a shielded room. A test receiver is used to measure emissions. The EUT is placed on a wooden table 0.8 meters high, on a ground plane, as per ANSI C63.10:2013.

TEST PROCEDURE

1. The EUT was set up to simulate typical actual usage.
2. Support equipment was placed as per ANSI C63.10:2013.
3. All I/O cables were positioned to simulate typical actual usage.
4. The adapter received AC120V/60Hz power through a LISN, which supplied power and was grounded.
5. Support equipment received AC power from a second LISN, if applicable.
6. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer/Receiver connected to the LISN. Two scans were performed, one with Line 1 connected to the analyzer and Line 2 to a 50 ohm load, and vice versa.
7. The analyzer/receiver scanned from 150 KHz to 30MHz.
8. Emissions were maximized by cable manipulation.

TEST RESULTS

Battery Powered Products Do Not Require This Test.

3.2. Radiated Emissions and Band Edge

Limit

For intentional devices, according to § 15.209(a), the general requirement for radiated emission field strength outside authorized bands shall not exceed the following table at a 3-meter measurement distance. Radiated emissions falling in restricted bands, as defined in §15.205(a), must also comply with §15.209(a) limits.

TEST CONFIGURATION

(A) Radiated Emission Test Set-Up, Frequency Below 30MHz: Depicts an EUT on a turntable, 0.8m high, within a shielded room. A receiver antenna is positioned 1m away. A ground plane is present.

(B) Radiated Emission Test Set-Up, Frequency below 1000MHz: Shows an EUT on a turntable, 0.8m high, with a receiving antenna positioned 1-4m away. An amplifier is also shown. A ground plane is present.

(C) Radiated Emission Test Set-Up, Frequency above 1000MHz: Illustrates an EUT on a 1.5m high turntable, with a receiving antenna positioned 1-4m away. An amplifier is shown. A ground plane is present.

Test Procedure

1. For measurements below 1GHz, the EUT was placed on a turntable 0.8m above the ground plane. For measurements above 1GHz, the EUT was placed on a turntable 1.5m above the ground plane.
2. The receiving antenna height was varied from 1m to 4m, and the turntable was rotated from 0° to 360° to find maximum emissions.
3. Antenna polarization (horizontal and vertical) was adjusted to maximize emissions.
4. These procedures were repeated for all frequencies.
5. The EUT was pretested in X, Y, and Z orientations. The X-plane results were the worst case and are presented.

TEST RESULTS

Remark:

• For testing below 1GHz, the worst case was recorded at the BLE low channel.
• Radiated emissions from 9 KHz to the 10th harmonic of the fundamental were verified. Emissions below 30MHz were attenuated by 20dB below the limits and are not recorded in this report.
• Band edge tests for frequencies 2402MHz and 2480MHz were performed. All measured values were within the specified limits for both horizontal and vertical polarizations.

3.3. Maximum Conducted Output Power

Limit

The Maximum Peak Output Power Measurement is 30dBm.

Test Procedure

The antenna was removed from the EUT and replaced with a low loss RF cable connected to a Spectrum Analyzer.

Test Configuration

EUT connected via RF cable to SPECTRUM ANALYZER.

Test Results

Raw data reference to Section 2 from Appendix for BLE.

3.4. Power Spectral Density

Limit

For digitally modulated systems, the power spectral density conducted from the intentional radiator to the antenna shall not be greater than 8 dBm in any 3 kHz band during any time interval of continuous transmission.

Test Procedure

1. This procedure is used when maximum peak conducted output power demonstrates compliance.
2. Set RBW ≥ 3 kHz.
3. Set VBW ≥ 3× RBW.
4. Set the span to 1.5 times the DTS channel bandwidth.
5. Detector = peak.
6. Sweep time = auto couple.
7. Trace mode = max hold.
8. Allow trace to fully stabilize.
9. Use the peak marker function to determine the maximum power level.
10. If measured value exceeds limit, reduce RBW (no less than 3 kHz) and repeat.
11. The resulting peak PSD level must be ≤ 8dBm.

Test Configuration

EUT connected via RF cable to SPECTRUM ANALYZER.

Test Results

Raw data reference to Section 3 from Appendix for BLE.

3.5. 6dB Bandwidth

Limit

For digital modulation systems, the minimum 6 dB bandwidth shall be at least 500 kHz.

Test Procedure

The transmitter output was connected to the spectrum analyzer through an attenuator. The bandwidth of the fundamental frequency was measured using a spectrum analyzer with 100 KHz RBW and 300 KHz VBW. The 6dB bandwidth is defined as the total spectrum where the power is higher than the peak power minus 6dB.

Test Configuration

EUT connected via RF cable to SPECTRUM ANALYZER.

Test Results

Raw data reference to Section 1 from Appendix for BLE.

3.6. Out-of-band Emissions

Limit

In any 100 kHz bandwidth outside the operating frequency band, the radio frequency power shall be at least 20 dB below the highest level of the desired power within the band. If RMS averaging is used for conducted power limits, the attenuation requirement is 30 dB. Attenuation below the general limits specified in §15.209(a) is not required.

Test Procedure

Connect the transmitter output to a spectrum analyzer using a low loss RF cable. Set the spectrum analyzer to RBW=100 kHz, VBW= 300 kHz, peak detector, and max hold. Measurements are made of the in-band reference level, bandedge, and out-of-band emissions.

Test Configuration

EUT connected via RF cable to SPECTRUM ANALYZER.

Test Results

Raw data reference to Section 4 from Appendix for BLE.

3.7. Antenna Requirement

Standard Applicable

For intentional devices, according to FCC 47 CFR Section 15.203:

An intentional radiator must be designed to ensure that no antenna other than that furnished by the responsible party is used. The use of a permanently attached antenna or one with a unique coupling is permitted. If a user-replaceable antenna is designed, it must be able to withstand the static electricity of the user, but standard antenna jacks or electrical connectors are prohibited.

FCC CFR Title 47 Part 15 Subpart C Section 15.247(b) (4):

(4) The conducted output power limit is based on antennas with directional gains not exceeding 6 dBi. If antennas with directional gain greater than 6 dBi are used, the conducted output power must be reduced by the amount the gain exceeds 6 dBi.

Test Result:

The maximum gain of the antenna was 1.05dBi.

Description of Antenna Image: An image shows the internal circuit board of the Atuvos Tag, with a component labeled "Antenna" pointing to the integrated antenna element.