June 9, 2014

FCC Technician Exam Question Of The Day (T8A01)

Q) Which of the following is a form of amplitude modulation?

A) Single sideband

NJ2X Notes:
Single sideband is also referred to as SSB.  Single sideband is a way to make amplitude modulation more efficient.  AM produces a modulated output signal that has twice the bandwidth of the original signal along with a carrier signal.  SSB suppresses the carrier and channels all the power into one side-band.   SSB signals have 16 times greater efficiency than a conventional AM signal.
Written by: NJ2X, Michael Maher