Shenzhen CTA Testing Report
Report Reference No.: CTA24082000502
FCC ID: 2BKV8-G52R1
Applicant: Shenzhen Pingfanzhilu International Trade Co., Ltd.
Manufacturer: Shenzhen Pingfanzhilu International Trade Co., Ltd.
Model/Type reference: G52R1
Test Item Description: Wireless Video Extender
Trade Mark: Lemorele
Date of Issue: Aug. 30, 2024
Testing Laboratory: Shenzhen CTA Testing Technology Co., Ltd.
Laboratory Address: Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao'an District, Shenzhen, China
Website: www.cta-test.cn
Email: cta@cta-test.cn
Phone: +86-755 2322 5875
1. Test Standards
The tests were performed according to the following standards:
- FCC Rules Part 15 Subpart E--Unlicensed National Information Infrastructure Devices
- ANSI C63.10-2013: American National Standard for Testing Unlicensed Wireless Devices
- KDB789033 D02: General UNII Test Procedures New Rules v01r02
2. Summary
This section provides a summary of the product and test details.
2.1 General Remarks
Date of receipt of test sample: Aug. 20, 2024
Testing commenced on: Aug. 20, 2024
Testing concluded on: Aug. 30, 2024
2.2 Product Description
Product Name: Wireless Video Extender
Model/Type reference: G52R1
Power supply: DC 5.0V From external circuit
Supported Wi-Fi Types: 802.11a, 802.11n
Operation Frequency: 5180MHz-5240MHz, 5745MHz-5825MHz
Modulation: OFDM
Antenna Type: Internal antenna
Antenna Gain: 1.93dBi (5180MHz-5240MHz), 2.08dBi (5745MHz-5825MHz)
2.3 Equipment Under Test
Power supply system utilised: DC 5.0V From external circuit
2.4 Short description of the Equipment under Test (EUT)
The EUT is a Wireless Video Extender. For detailed information, please refer to the user's manual.
2.5 EUT operation mode
The applicant provided communication tools software (AT command) to enable continuous transmitting (Duty Cycle > 98%) and receiving mode for testing.
2.6 Block Diagram of Test Setup
The test setup involved the EUT connected to a DC 5.0V power source from a PC.
2.8 Modifications
No modifications were implemented to meet testing criteria.
3. Test Environment
3.1 Address of the test laboratory
Shenzhen CTA Testing Technology Co., Ltd. is located at Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao'an District, Shenzhen, China.
3.2 Test Facility
The test facility is recognized, certified, or accredited by the following organizations: FCC-Registration No.: 517856, Designation Number: CN1318. Shenzhen CTA Testing Technology Co., Ltd. is listed on the US Federal Communications Commission list of test facilities. A2LA-Lab Cert. No.: 6534.01. The 3m-Semi anechoic test site complies with CISPR 16-1-4 and ANSI C63.10.
3.3 Environmental conditions
Environmental conditions during testing were within the following ranges:
- Radiated Emission: Temperature: 25 C, Humidity: 45%, Atmospheric pressure: 950-1050mbar
- Conducted testing: Temperature: 25 C, Humidity: 44%, Atmospheric pressure: 950-1050mbar
- AC Power Conducted Emission: Temperature: 24 C, Humidity: 44%, Atmospheric pressure: 950-1050mbar
3.4 Test Description
The tests covered various FCC requirements including AC Power Conducted Emission, Radiated Emissions, Maximum Conducted Output Power, Power Spectral Density, Emission Bandwidth, Minimum Emission Bandwidth, and Frequency Stability. The data rate used for testing was determined to be the worst-case rate for radiated emissions.
3.5 Statement of the measurement uncertainty
Shenzhen CTA Testing Technology Co., Ltd. has documented measurement uncertainties for various tests, including radiated emissions (3.02 dB to 5.38 dB), conducted disturbance (2.14 dB), output peak power (0.55 dB), power spectral density (0.57 dB), and spectrum bandwidth (1.1%).
3.6 Equipments Used during the Test
A comprehensive list of test equipment was utilized, including LISNs, EMI Test Receivers, Spectrum Analyzers, Vector Signal Generators, Horn Antennas, Bilog Antennas, and various software.
4. Test Conditions and Results
4.1 AC Power Conducted Emission
Test Configuration: The EUT was set up on a wooden table with a height of 0.8 meters, connected to a Line Impedance Stabilization Network (LISN) for power supply. Measurements were taken using a spectrum analyzer/receiver.
Test Procedure: Emissions were measured on each current carrying line from 150 KHz to 30MHz. The EUT was powered by AC 120V/60Hz or AC 240V/60Hz.
AC Power Conducted Emission Limit: Limits are defined by FCC Part 15.207(a) for quasi-peak and average detectors.
Results: The test results indicated compliance (PASS) for AC Power Conducted Emission under both Line (L) and Neutral (N) polarizations for 120 VAC, 60 Hz power supply.
4.2 Radiated Emissions
Limits: Emissions outside of the frequency bands of operation must be attenuated according to FCC Part 15.407(b) and general limits in §15.209.
Test Procedure: Measurements were performed with the EUT placed on a turntable. The receiving antenna was raised from 1m to 4m, and the turntable rotated from 0 to 360 degrees. Polarization was varied between horizontal and vertical. Tests covered frequency bands from 9KHz to 40GHz.
Test Setup Description: The test setup involved the EUT on a turntable, a receiving antenna, and measurement equipment. Different configurations were used for frequencies below 30MHz, below 1000MHz, and above 1000MHz.
Results: Radiated emissions were tested for horizontal and vertical polarizations across various frequency bands. The data lists suspected emission points, levels, limits, and margins, indicating compliance (PASS) for the tested configurations.
4.3 Maximum Conducted Average Output Power
Limits: Output power limits vary by band and device type (e.g., outdoor access point, client device) and are specified in dBm or mW, with antenna gain considerations.
Test Procedure: The EUT's antenna was removed, and a low loss RF cable connected the antenna port to a power sensor for measurement.
Results: The conducted output power was measured for 802.11a and 802.11n(HT20) modes across U-NII 1 and U-NII 3 bands. All measured values were within the specified limits (e.g., 30 dBm), resulting in a PASS verdict.
4.4 Power Spectral Density
Limits: Power spectral density limits are specified in dBm/MHz or dBm/500kHz, with adjustments for antenna gain.
Test Procedure: The test involved setting specific RBW and VBW values, using a peak detector, and measuring the maximum power spectral density using the peak marker function.
Results: Power spectral density measurements for 802.11a and 802.11n(HT20) modes across U-NII 1 and U-NII 3 bands showed results well within the specified limits (e.g., 17.0 dBm/MHz, 30.0 dBm/500KHz), leading to a PASS verdict. Spectrum analyzer plots visually confirm these results.
4.5 Emission Bandwidth (26dB Bandwidth)
Limit: Not applicable (N/A) for this test, as it measures the bandwidth itself.
Test Procedure: The procedure involved setting RBW to approximately 1% of the EBW, VBW > RBW, using a peak detector, and measuring the bandwidth where the emission is 26 dB down from the peak.
Results: The 26dB bandwidth was measured for 802.11a and 802.11n(HT20) modes on U-NII 1 channels. All measured bandwidths (e.g., 25.000 MHz, 24.960 MHz) were recorded, and the test passed.
4.6 Minimum Emission Bandwidth (6dB Bandwidth)
Limit: Within the 5.725-5.85 GHz band (U-NII 3), the minimum 6 dB bandwidth must be at least 500 kHz.
Test Procedure: RBW was set to 100 kHz, VBW to 3x RBW, with a peak detector and max hold trace mode. The bandwidth was measured at 6 dB below the peak emission level.
Results: For 802.11a and 802.11n(HT20) modes on U-NII 3 channels, the measured 6dB bandwidths (e.g., 16.320 MHz, 17.160 MHz) were all greater than the 500 kHz limit, resulting in a PASS verdict.
4.7 Frequency Stability
Limit: Emissions must be maintained within the band of operation under all conditions of normal operation.
Test Procedure: Frequency stability was tested under temperature variations (from -30°C to +50°C) and voltage variations (rated voltage ±15%). The EUT's frequency was measured using a spectrum analyzer or frequency counter.
Results: The frequency error was measured in Hz and ppm for various temperature and voltage conditions. All recorded frequency errors were within the specified limits (within the band of operation), resulting in a PASS verdict.
5. Test Setup Photos of the EUT
Photographs illustrating the test setups for radiated emissions are provided, showing the EUT, test equipment, and anechoic chamber configurations for different frequency ranges.
6. Photos of the EUT
Reference is made to a separate test report (CTA24082000501) for photos of the EUT itself.
