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What kind of modulation is used with most NFC tags? a) OFDM b) DSSS c) ASK d) NRZ-I

Question:

What kind of modulation is used with most NFC tags?

a) OFDM

b) DSSS

c) ASK

d) NRZ-I

Amplitude shift keying:


It is a kind of the amplitude modulation, in which digital information is described as the carrier flow having fluctuations into its amplitude, and it is termed as the amplitude shift keying. It gives zero value at the low input.

Answer and Explanation:


ASK is the kind of modulation that is used with most of the NFC tags as the radio frequency energy is focused on the approved 14 kHz bandwidth, as the sidebands could extend out as distant.

Therefore, option (c) is correct.


Learn more about this topic:

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The Resultant Amplitude of Two Superposed Waves

from MEGA Physics: Practice & Study Guide

Chapter 15 / Lesson 10
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