FSK stands for Frequency shift keying. This technology is used for a communication system such as caller ID and emergency broadcast. Here this article gives information about the advantages and disadvantages of FSK to know more details about it.
Advantages of FSK :
- It has a lower probability
- Easy to implement
- High data rate
- It has better noise immunity than ASK method, so the probability of error-free reception of data is high
- Easy to decode
- Operate in virtually any wires available
- FSK transmitter, as well as FSK receiver implementations, are simple for low data rate application
- It provides high SNR
- Used in long-distance communication
- Power requirement is constant
- Good sensitivity
- It has higher immunity to noise due to a constant envelope. Hence it is robust against variation in attenuation through a channel
- Low noise
Disadvantages of FSK :
- The BER performance in the AWGN channel is worse compared to PSK modulation
- Extensively used in low-speed modems having bit rates below around 1200 bits/sec
- This increases the channel bandwidth required to transmit the FSK signal type
- It uses larger bandwidth compared to other modulation techniques like ASK and PSK. Hence it is not bandwidth efficient
- FSK is not preferred for the high-speed modems because with increases in speed and also have the bit rate increases
- When in the telecommunication media, the telephone lines have very low bandwidth, it is not possible to satisfy the bandwidth requirement of FSK at a too much higher speed. So in a method of FSK is preferred only for the low-speed problem
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