Question

Select the correct statement(s) regarding digital baseband modulation.

a. similar to analog signal modulation, logical ""1s"" and ""0s"" are represented by carrier wave amplitudes, frequencies, or phase angles
b. QAM is a modulation technique in which both carrier amplitude and phase angle changes represent logical data
c. with QAM, two carrier waves of the same frequency, but separated by π/2 radians, are used to represent logical data
d. all statements are correct

Answer 1

The answer is "Option d".

Step-by-step explanation:

The electronic firmware synchronization was its method where even the series of bytes is amplified even before the transmission process into to the sound waves and, thus, and in conceptual "1s" and "0s" represented by large font, wavelengths, or switching frequency.

• QAM utilizes both magnitudes of the transporter and adjustments in the phase shift.
• Rational data is represented by
  `(\pi)/(2)` cartesian coordinates for both the carries waves of the same wavelengths and represents the result in total.