TECH 3812
Digital Electronic Communications
Spring 2020

Instructor Info

Daniel Kohn
Email: dekohn@memphis.edu
Office ET218
Phone: 678-4515
Office Hours

Dr. Lenwood Fields
Email: llfelds1@memphis.edu
Office ET230
Phone: 678-4963
Office Hours Posted on office door.

Course Info

Course Policies
GradeWatch Access

Lab Reports

Example Lab
Example Report for (above) lab

Assignment Submission

Submit Assignments

Suggested Text

Electronic Communications: A Systems Approach - Jeffrey S. Beasley, Jonathan D. Hymer and Gary M. Miller

Online Class

Because of the Covid-19 Virus, TECH3812 will resume on March 24, via Zoom web based video conferencing at the normal class time (M-W-F 10:20am - 11:15am) by clicking on icon (below)).

We are still working on how labs will be conducted.

Classes will be recorded for future reference (although currently I am not sure how they will be made available for viewing).

If you have never used ZOOM before, you might want to check out this Video Tutorial and the log in instructions. It is best if you have a mic. A Camera is not required, but I do like seeing who I am talking to. If you do not have a mic, you can ask questions via the Chat function as well. If using a mic, make sure you know how to mute/unmute (to ask questions) and ensure you know how to share your screen so I can see the issues you are having when asking a question on assignments.


Videos of Lectures

I will be posting the lectures to OneDrive (CLICK HERE) for you to view after class.

Course Outline:

DateTopicReadingHandoutsAssignments
Jan 22Welcome

Intro to Communication
Wireless FundamentalsLecture Notes (#1) 
Jan 24Electromagnetic Waves and Spectrum Lecture Notes (#2) 
Jan 27dBm and Power

Signal Analysis (start)
 Lecture Notes (#3)
Lecture Notes (#4)
 
Jan 29Signal Analysis (cont)

Noise, Signal to Noise Ration, Information and Bandwith
 Lecture Notes (#4)

Lecture Notes (#5)
Lab 1 - Transmission Line Caracteristics.
Jan 31Noise, Signal to Noise Ration, Information and Bandwith (cont)  HW #1

HW #1 Solutions
Feb 3Noise, Signal to Noise Ration, Information and Bandwith (cont)

Antennas
Dipole
  •includes 3d image (Fig 4) Discussed in class
Dipole Animation
Yagi Antenna
Lecture Notes (#6) 
Feb 5Antennas (cont)  No Lab Today
Feb 7Free Space Path Loss Lecture Notes (#7)Quiz #1
Feb 10Free Space Path Loss (Cont)   
Feb 12Free Space Path Loss (cont)

Amplitude Modulation
 Lecture Notes (#8)Lab 2 - Square Wave Spectral Content.
Feb 14AM (Cont)  Quiz #2
Feb 17AM (Cont) Lecture Notes (#9) 
Feb 19AM (Cont)  No Lab Today
Feb 21AM Demodulation Lecture Notes (#10)HW #2

HW #2 Solutions
Feb 24AM Demodulation (cont)

FM Modulation
 AM and Peak Detector

Lecture Notes (#11)
 
Feb 26Frequency and Phase Modulation Lecture Notes (#12)Lab #3 - AM Modulation.
Feb 28FM / PM (Cont)FREQUENCY MODULATION (Youtube)   
Mar 2FM (cont)   
Mar 4Test #1
Up to, but not including Lecture 11
  No Lab Today
Mar 6Finish Lecture #12

Hand Back Test
   
Mar 9-13Spring Break (No Class)   
Mar 16-20Extended Spring Break (No Class)   
Mar 23FM (Cont) Lecture Notes (#13) 
Mar 25FM Demodulation Lecture Notes (#14)HW #3

Lab #4 (There will NOT be lab today)
Mar 27Intro to Digital Communications Lecture Notes (#15) 
Mar 30Digital Comm (Cont)  Lecture Notes (#16) 
     

Reference Links:

Binary vs SI Prefixes
What is a decibel (dB)?