Transmission

**1.**Unipolar, bipolar, and polar encoding are types of _______ encoding.

**2.**_______ encoding has a transition at the middle of each bit.

**3.**_______ encoding has a transition at the beginning of each 0 bit.

**4.**PCM is an example of _______ conversion.

**5.**If the frequency spectrum of a signal has a bandwidth of 500 Hz with the highest frequency at 600 Hz, what should be the sampling rate, according to the Nyquist theorem?

**6.**The Nyquist theorem specifies the minimum sampling rate to be_______.

**7.**Which of the following encoding methods does not provide for synchronization?

**8.**Which encoding method uses alternating positive and negative values for 1s?

**9.**Which quantization level results in a more faithful reproduction of the signal?

**10.**. Block coding can help in _______ at the receiver.