Electronic Communications Principles and Systems and Lab – Week #6 Lab 1

Lab6 – The Transmission of Binary Data in Communication Systems

1. Watch video entitled “Module 6 – Noise in MultiSIM”

a. Note: If you are using Multisim version 14 you must follow this alternative procedure, click this link to download the Multisim version 12 white noise component. Double click to open the file. You’ll see the white noise generator component. Right click on it, select COPY. On the upper menu, click FILE/NEW, select BLANK then CREATE. Right click in the Multisim workspace and click PASTE to put the generator in the space. You will not be able to modify the white noise generator as you saw in the video. Continue to put the remaining components in the workspace based on the video. Connect the oscilloscope as well as the spectrum analyzer to both circuits to see the square wave. One should have noise on it and the other will not.

2. Discuss and specify the following:

a. At what frequency do the frequency components reside?

b. What is the relative magnitude of the frequency components?

3. Capture a screenshot of vout(t) and the spectrum plot

4. Insert white noise in series with the resistor.

5. Discuss and specify the following:

a. What is the effect of the noise on the major frequency components?

b. What is the effect of the noise on the other frequencies?

6. Capture a screenshot of vout(t) and the spectrum plot.

7. Include the discussion and screenshots of parts 3 through 7 into a Word document entitled “Lab6_StudentID”. Where your student id is substituted in the file name.

8. Upload file “Lab6_StudentID”.

Rules for lab submissions:

1. The lab document must be a Word document. PDF files are NOT accepted.

2. All screenshots must be included.

3. All Multisim screenshots must include the *date/time stamp*. See TOOLS AND TEMPLATES for the procedure to display the date and time.

4. Any and all Multisim files must be submitted.

5. Any equations used must be typed in Word. Copy and paste of equations from outside sources is prohibited.

6. No graphics are allowed in the Word document other than screenshots of circuits from Multisim and hardware if applicable, with the date/time stamp.

7. The lab template should be used. Specifically, it is brought to your attention that a summary MUST be provided explaining the results of the labs, the relationship of the results to expected results, and any challenges encountered.

8. Hardware portion of labs should include screenshots of the assembled circuit with your name and student GID number written on paper next to the circuit. There should be screenshots of the instrument readings with the date and time stamp on lower right corner clearly shown.

Any violation of the submission rules above will result in a grade of 1.

Please fill out and use the following Lab Report Template when submitting your lab work.

Please read and follow the guidelines given in the Solutions Template in submitting all of your lab work.

Grading Criteria Assignments	Maximum Points
Meets or exceeds established assignment criteria	40
Demonstrates an understanding of lesson concepts	20
Clearly presents well-reasoned ideas and concepts	30
Uses proper mechanics, punctuation, sentence structure, and spelling	10
Total	100