Baseus PrimeTrip VD1 Dash Cam BS-CM034 Test Report

Radiated Emissions Test Results above 1GHz

EUT Name: Baseus PrimeTrip VD1 Dash Cam

Model Name: BS-CM034

Test Conditions: Temperature: 22.6°C, Pressure: 960hPa, Relative Humidity: 56.3%, Test Voltage: Normal Voltage

Horizontal Polarity (Test Mode: Mode 12)

Vertical Polarity (Test Mode: Mode 12)

Remark: Factor = Antenna Factor + Cable Loss – Pre-amplifier.

RESULT: Pass

Notes:

• The amplitude of other spurious emissions from 1G to 25 GHz which are attenuated more than 20 dB below the permissible value need not be reported.
• Factor = Antenna Factor + Cable loss – Pre-amplifier gain, Margin =Emission Level-Limit.
• The "Factor" value can be calculated automatically by software of measurement system.
• All test modes had been pre-tested. The 802.11n40 is the worst case and recorded in the report.

Band Edge Emission Test Results for Restricted Bands

This section details the band edge emission test results for various modes of operation of the Baseus PrimeTrip VD1 Dash Cam (Model BS-CM034). These tests evaluate radio frequency emissions at the edges of the authorized frequency bands. The tests were performed under consistent environmental conditions: Temperature 23.2°C, Pressure 960hPa, Relative Humidity 50.0%, and Normal Voltage.

The results for each test mode, including Antenna Polarity (Horizontal/Vertical), are summarized below. Each mode includes spectrum analyzer graphs for Peak and Average measurements, showing emission levels against specified limits. All tested modes passed the compliance requirements.

Summary of Test Modes and Results:

• Mode 1: Antenna Polarity: Horizontal (Pages 2-3), Vertical (Page 3)
• Mode 3: Antenna Polarity: Horizontal (Page 4), Vertical (Page 5)
• Mode 4: Antenna Polarity: Horizontal (Page 6), Vertical (Page 7)
• Mode 6: Antenna Polarity: Horizontal (Page 8), Vertical (Page 9)
• Mode 7: Antenna Polarity: Horizontal (Page 10), Vertical (Page 11)
• Mode 9: Antenna Polarity: Horizontal (Page 12), Vertical (Page 13)
• Mode 10: Antenna Polarity: Horizontal (Page 14), Vertical (Page 15)
• Mode 12: Antenna Polarity: Horizontal (Page 16), Vertical (Page 17)

General Description of Spectrum Analyzer Graphs: The spectrum analyzer graphs display the radio frequency emissions measured for the device under specific test modes and antenna polarities. Each graph shows the signal amplitude (in dBμV/m) across a range of frequencies. The 'Peak Measurement' graph shows the maximum detected signal level, while the 'Average Measurement' graph shows the average detected signal level. Markers indicate specific frequencies and their corresponding signal levels, which are compared against predefined limits (e.g., 74 dBμV/m for peak, 54 dBμV/m for average) to determine compliance. The 'RESULT: Pass' indicates that the emissions were within the acceptable limits for that test condition.

Note: The 802.11n40 was identified as the worst-case scenario and is recorded in the report. For some tests, the 'Factor' was edited in the 'Input Correction' of the Spectrum Analyzer.

AC Power Line Conducted Emission

12.1 Measurement Limits

Note:

• The lower limit shall apply at the transition frequency.
• The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz.

12.2 Block Diagram of Line Conducted Emission Test

The block diagram illustrates the setup for AC Power Line Conducted Emission testing. It shows a shielding room containing a PC, Receiver, Pulse Limiter, and the EUT/AE (Equipment Under Test/Ancillary Equipment) placed on a test table. The EUT/AE is connected to a PSU (Power Supply Unit) and LISNs (Line Impedance Stabilization Networks) via AC Mains. The diagram also shows distances between components and ground reference plane.

12.3 Preliminary Procedure of Line Conducted Emission Test

1. The equipment was set up as per the test configuration to simulate typical actual usage per the user's manual. When the EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is placed on the ground plane as per ANSI C63.10 (see Test Facility for the dimensions of the ground plane used). When the EUT is a floor-standing equipment, it is placed on the ground plane which has a 3-12 mm non-conductive covering to insulate the EUT from the ground plane.

2. Support equipment, if needed, was placed as per ANSI C63.10.

3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10.

4. All support equipment received AC120V/60Hz power from a LISN, if any.

5. The EUT received DC 5V power from adapter which received AC120V/60Hz power from a LISN.

6. The test program was started. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side).

7. Two scans were taken: one with Line 1 connected to Analyzer / Receiver and Line 2 connected to a 50 Ohm load; the second scan had Line 1 connected to a 50 Ohm load and Line 2 connected to the Analyzer / Receiver.

8. Analyzer / Receiver scanned from 150 kHz to 30MHz for emissions in each of the test modes.

9. During the above scans, the emissions were maximized by cable manipulation.

10. The test mode(s) were scanned during the preliminary test.

Then, the EUT configuration and cable configuration of the above highest emission level were recorded for reference of final testing.

12.4 Final Procedure of Line Conducted Emission Test

1. EUT and support equipment was set up on the test bench as per step 2 of the preliminary test.

2. A scan was taken on both power lines, Line 1 and Line 2, recording at least the six highest emissions. Emission frequency and amplitude were recorded into a computer in which correction factors were used to calculate the emission level and compare reading to the applicable limit. If EUT emission level was less 2dB to the A.V. limit in Peak mode, then the emission signal was re-checked using Q.P and Average detector.

3. The test data of the worst case was reported on the Summary Data page.

12.5 Test Result of Line Conducted Emission Test

N/A

Note: The device under test is car charger powered and does not require evaluation of AC Power Line Conducted Emission.

Appendices

Appendix I: Photographs of Test Setup

Refer to the Report No.: AGC11758250409AP02

Appendix II: Photographs of Test EUT

Refer to the Report No.: AGC11758250409AP03

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