511. What is the relation between sine wave and square wave?
512. Amplitude of each harmonic in a square wave depends on?
513. What are the tools used for signal integrity analysis?
514. How can we represent a spectrum with fundamental frequency and harmonics?
515. What is ring back?
516. What are the tools that can be used in frequency domain?
517. What is the difference between VNA and Spectrum analyzer?
518. What equipment do we used to test filters performance?
519. Define signal integrity
520. What is controlled impedance?
521. What conclusions can be made if signal is distorted in a channel?
522. What is a coaxial cable?
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