ARDMS Practice Test 2025 – Comprehensive All-in-One Guide to Diagnostic Medical Sonography Success!

Question: 1 / 400

Which system function is modified if the ultrasound user adjusts the receiver gain?

Amplification

Compression

Demodulation

When the ultrasound user adjusts the receiver gain, they are modifying the demodulation function of the system. Demodulation is the process of extracting the baseband information from the modulated carrier signal. By adjusting the receiver gain, the user is controlling the strength of the received signal before the demodulation process. This adjustment helps in optimizing the image quality by ensuring that the signal is at an appropriate level for further processing.

Amplification (Option A) refers to increasing the strength of the received signal, Compression (Option B) involves reducing the dynamic range of the signal, and Reject (Option D) is used to eliminate low-level signals that may contain noise. However, in the context of adjusting the receiver gain, the primary function being modified is demodulation.

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Reject

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