PHOTO 1

Photo of Power Line Conducted Emission Test

This photograph shows the test setup for the conducted emission test. The Equipment Under Test (EUT) is identified as a speaker with colorful LED lights, placed on a wooden table. It is connected to a power source via a test instrument, likely a Line Impedance Stabilization Network (LISN), which is also visible. The setup includes power cables and connections to the test equipment. The Chinese characters '市电' indicate the mains power connection.

PHOTO 2

Photo of Radiated Emission Test (Below 1GHz)

This photograph depicts the test setup for radiated emission testing below 1GHz. The EUT (speaker) is positioned on a white cube in an anechoic chamber. The chamber walls are lined with RF absorbing materials. Antennas and test equipment are arranged around the EUT to measure electromagnetic emissions.

PHOTO 3

Photo of Radiated Emission Test (Above 1GHz)

This photograph illustrates the test setup for radiated emission testing above 1GHz. Similar to the previous setup, the EUT (speaker) is placed on a white cube within an anechoic chamber. The chamber is equipped with RF absorbing materials, and the arrangement is optimized for measuring emissions at higher frequencies.