What Impedance Really Is And Why Everything Is 50 Ohms? | EP 003 скачать в хорошем качестве

What Impedance Really Is And Why Everything Is 50 Ohms? | EP 003

Impedance is often explained with equations, but rarely with intuition. In this video, we strip the math away and explain what impedance really means, why RF signals behave differently from DC, and why nearly every RF system is built around 50 ohms. Impedance is one of the most fundamental and most misunderstood concepts in RF engineering. Most explanations start with formulas like Z = R + jX. But memorizing equations doesn’t guarantee understanding. In this video, we take a different approach. You’ll learn: • What impedance really represents (beyond resistance) • Why impedance depends on frequency • How energy is stored, delayed, and returned • Why impedance causes reflections in RF systems • Why 50 ohms became the standard — and why it still makes sense • Why video systems often use 75 ohms instead This explanation is designed to build intuition, not require memorization. Whether you’re an RF engineer, an electrical engineering student, a ham radio operator, or simply curious about how wireless systems really work, this video will help you see impedance clearly. Subscribe to RF101 Explained for clear, practical explanations of radio frequency engineering. Radio Frequency, made simple.