Q. To increase the capacity of AMPS, Motorola developed ____________

View solution

Q. The dual mode USDC/AMPS system was standardized as ____________

View solution

Q. USDC is also known as ___________

View solution

Q. USDC was designed to share different frequencies as compared to AMPS.

View solution

Q. Because of the compatibility with AMPS, USDC is also known as ___________

View solution

Q. USDC forward and reverse control channels use exactly the same signalling techniques as AMPS.

View solution

Q. USDC has ___________ as many control channels as AMPS.

View solution

Q. Which of the following data channels of USDC carries the user information?

View solution

Q. Which of the following channel is similar in functionality to the SAT used in AMPS?

View solution

Q. Which of the following channel in USDC provides a signalling channel?

View solution

Q. Which of the following channel in USDC is used to send important control or specialized traffic data between the base station and mobile units?

View solution

Q. Which of the following speech coder is used in USDC?

View solution

Q. Which of the following is the world’s first cellular system to specify digital modulation and network level architecture?

View solution

Q. Previously in 1980s, GSM stands for ____________

View solution

Q. Who sets the standards of GSM?

View solution

Q. Which of the following does not come under the teleservices of GSM?

View solution

Q. Which of the following comes under supplementary ISDN services?

View solution

Q. Which of the following memory device stores information such as subscriber’s identification number in GSM?

View solution

Q. Which of the following feature makes impossible to eavesdrop on GSM radio transmission?

View solution

Q. Which of the following does not come under subsystem of GSM architecture?

View solution