What is frequency modulation and its types?
There are two different types of frequency modulation used in telecommunications: analog frequency modulation and digital frequency modulation. In analog modulation, a continuously varying sine carrier wave modulates the data signal.
What is frequency modulation with example?
Frequency_Modulation. FREQUENCY MODULATION (FM) The process of varying the FREQUENCY of a signal, often PERIODICally. An example of FM is the violinist’s VIBRATO, where the length of a string (and therefore the resulting pitch) is rapidly altered by a fast oscillating movement of the finger and wrist.
What is the main disadvantages of FM?
Disadvantages of FM: Much more Bandwidth (as much as 20 times as much). More complicated receiver and transmitter.
What are advantages of frequency modulation?
Advantages and Disadvantages of Frequency Modulation
| Advantages | Disadvantages |
|---|---|
| Less interference and noise. | Equipment cost is higher. Has a large bandwidth. |
| Power Consumption is less as compared to AM. | More complicated receiver and transmitter |
What is meant by frequency modulation?
Frequency Modulation • In frequency modulation, frequency of the carrier is varied in accordance with the instantaneous value of the amplitude of the modulating signal keeping the amplitude of the carrier fixed. 6.
What is the maximum modulation frequency of narrow band FM?
Narrow Band FM Modulation index is less than 1 Maximum Modulating Frequency is usually 3KHZ and Maximum frequency deviation is 75KHZ 16.
What are the disadvantages of frequency modulation?
Disadvantages of Frequency Modulation Requires more complicated demodulator Some other modes have higher data spectral efficiency Sidebands extend to infinity either side 15. Narrow Band FM Modulation index is less than 1 Maximum Modulating Frequency is usually 3KHZ and Maximum frequency deviation is 75KHZ
What is the if modulation index (β)?
IF Modulation Index (β) = 1 10. IF Modulation Index (β) = 25 11. Spectrum of Frequency Modulation 12. Practical Examples of Frequency modulation 13.