PHYSICAL LAYER AND TRANSMISSION MEDIA
DIGITAL TRANSMISSION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which of the following are Digital-to-analog conversion techniques?
|
AM
|
|
QAM
|
|
ASK
|
|
PSK
|
|
FSK
|
Explanation:
Detailed explanation-1: -There are three mechanisms for modulating digital data into an analog signal: amplitude shift keying (ASK), frequency shift keying (FSK), and phase shift keying (PSK). In addition, there is a fourth (and better) mechanism that combines changing both the amplitude and phase, called quadrature amplitude modulation (QAM).
Detailed explanation-2: -Digital-to-Analog conversion or digital-to-analog modulation is the phase of converting one of the features of an analog signal depending on the data in a digital signal (0s and 1s) when we communicate information from one system to another across a public access phone line.
There is 1 question to complete.