Mathematical-Reasoning
October 15, 2023UGC NET CS 2016 July- paper-2
October 15, 2023Data-Communication
| Question 2 |
In which modulation discrete values of carrier frequencies is used to transmit binary data?
| Phase Shift Keying | |
| Amplitude Shift Keying | |
| Frequency Shift Keying | |
| Disk Shift Keying |
Question 2 Explanation:
Frequency-shift keying (FSK) is a frequency modulation scheme in which digital information is transmitted through discrete frequency changes of a carrier signal. The technology is used for communication systems such as telemetry, weather balloon radiosondes, caller ID, garage door openers, and low frequency radio transmission in the VLF and ELF bands. The simplest FSK is binary FSK (BFSK). BFSK uses a pair of discrete frequencies to transmit binary (0s and 1s) information. With this scheme, the “1” is called the mark frequency and the “0” is called the space frequency.
Correct Answer: C
Question 2 Explanation:
Frequency-shift keying (FSK) is a frequency modulation scheme in which digital information is transmitted through discrete frequency changes of a carrier signal. The technology is used for communication systems such as telemetry, weather balloon radiosondes, caller ID, garage door openers, and low frequency radio transmission in the VLF and ELF bands. The simplest FSK is binary FSK (BFSK). BFSK uses a pair of discrete frequencies to transmit binary (0s and 1s) information. With this scheme, the “1” is called the mark frequency and the “0” is called the space frequency.
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