What type of transmission medium are commonly used for baseband transmission and for passband transmission ?
Encode the bit-pattern 1010000101 using the following digital encoding schemes. Be sure to write down any assumptions you need to make:
A periodic composite signal with a bandwidth of 2000 Hz is composed of two sine waves. The first one has a frequency of 100 Hz with maximum amplitude of 20 V; the second one has maximum amplitude of 5 V. Draw the frequency domain graph.
1- Given two sine waves A and B, if the frequency of A is twice that of B, then the period of B is _________ that of A.
c. The same as
d. Indeterminate from
2- What is the bandwidth of a signal that ranges from 40 KHz to 4 MHz?
3- In _______encoding, we use three levels: positive, zero, and negative.
d. none of the above
4- ASK, PSK, and FSK are examples of ________ modulation.
5- Modulation of an analog signal can be accomplished through changing the_______ of the carrier signal.
d. Any of the above
6- What are the channel conditions for a successful baseband transmission
Bandpass with narrow bandwidth
Bandpass with wide bandwidth
Low-pass with narrow bandwidth
Low-pass with wide bandwidth
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