Due Date: 28 Nov 2019

Instructions:

Please read the following instructions carefully before submitting assignment:

You need to use MS word document to prepare and submit the assignment on VU-LMS.

It should be clear that your assignment will not get any credit if:

§  The assignment is submitted after due date.

§  The assignment is not in the required format (doc or docx).

§  The submitted assignment does not open or file is corrupt.

§  Assignment is copied (partial or full) from any source (websites, forums, students, etc).

Objectives:

To enhance the learning about:

1.      Encoding Scheme

2.      Single Characteristics

3.      Transmission Impairments

Question No. 1                                                                                                                                                                      

A below given diagram is representing the Differential Manchester encoding scheme. You are required to carefully analyze the diagram and then write the binary pattern represented by the diagram:

Hint: First bit is 0 and its voltage level is negative to positive.

Give your answer in the following table: (Solution )

Question No.2                                                                                                                                          

Determine the following from the diagram given below:

• Period in Milliseconds
• Frequency
• Phase Shift

Give your answer in the following table:

Question No. 3                                                                                                                                          

Suppose power P of a signal is increased 30 times after passing through an amplifier. By writing all necessary formulas and calculation steps, you are required to calculate amplification (power gain) in proper unit.

Solution:

Av=Input voltage/output voltage

AI=input current/out put current

Ap=av*ai

Amplifiers gain  given in decibels (dB)

Av=20logAv

Ai=20log Ai

Ap=10log Ap

Note calculate the values by your selfe

Best of Luck!