QPSK Uses Four Signal States That Are ____ Degrees Out

question 1

Multiple Choice

QPSK uses four signal states that are ____ degrees out of phase to carry four signal values.

• A) 30
• B) 60
• C) 90
• D) 180

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Definitions:

Blood Pressure

The force exerted by circulating blood on the walls of the body's arteries, typically measured to assess heart and circulatory health.

Arterial Walls

The layers of tissue that form the outer structure of arteries, responsible for maintaining blood pressure and flow throughout the body.

Heart Contracts

The process by which the heart muscle actively tightens and relaxes to pump blood throughout the body.

Orthostatic Hypotension

A form of low blood pressure that happens when standing up from sitting or lying down, causing dizziness or lightheadedness.