On [DATE], American Public University System combined with Rasmussen University and Hondros College of Nursing to form a single higher education institution. American Public University System (System) now includes American Public University, American Military University, Rasmussen University, and Hondros College of Nursing. The System is accredited by the Higher Learning Commission and is a wholly owned subsidiary of American Public Education, Inc. (APEI). We are continuing to update our website to reflect our new structure.

ELEN420 - Communication Systems

Course Details

Course Code: ELEN420 Course ID: 4605 Credit Hours: 3 Level: Undergraduate

The course covers statistical communication theory including amplitude, frequency, and pulse code modulation; description of random process by auto-correlation and power spectral density functions, sources and properties of electrical noise and its effect on communication systems, the effects of modulation, detection and filtering on signal information content, and bandwidth and signal-to-noise ratio. Topics include: a review of signals and systems, power spectral density, amplitude modulation, angle modulation, pulse modulation, a review of probability and random variables, and an introduction to digital transmission systems. NOTE: This course requires the student to purchase additional materials that are not covered by the book grant. Please refer to the Course Materials section for additional details. (Prerequisites: ELEN310, ELEN325 or ELEN350, and MATH303 or MATH328)

Course Schedule

Registration Dates Course Dates Start Month Session Weeks
Registration03/30/2026 - 09/04/2026 Course Dates09/07/2026 - 11/01/2026 Start Month September SessionSummer 2026 Session D Weeks8 Week session
Registration05/25/2026 - 10/30/2026 Course Dates11/02/2026 - 12/27/2026 Start Month November SessionFall 2026 Session I Weeks8 Week session
Registration07/27/2026 - 01/01/2027 Course Dates01/04/2027 - 02/28/2027 Start Month January SessionWinter 2027 Session B Weeks8 Week session

Previous Syllabi

Not current for future courses.