•The GSM's number of frequencies is 124
•When the OPERATORS do not have ENOUGH frequencies, the range to be used is CDS 1800
•Frequency hopping is used when the frequencies used are more with high INTERFERENCE.
•Frequency hopping is utilized to EQUALIZE interference for the frequencies that are used in their range.
•One of the frequency hoppings is Synthesised Frequency Hopping
•Synthesized hopping allows the transmitter to change its frequency based on time slots. Because of this process SFH is KNOWN as fast hopping.

•The GSM's number of frequencies is 124
•When the operators do not have enough frequencies, the range to be used is CDS 1800
•Frequency hopping is used when the frequencies used are more with high interference.
•Frequency hopping is utilized to equalize interference for the frequencies that are used in their range.
•One of the frequency hoppings is Synthesised Frequency Hopping
•Synthesized hopping allows the transmitter to change its frequency based on time slots. Because of this process SFH is known as fast hopping.