Exam 2: Wireless Data Transmission

MATCHING -a coding scheme that uses the numbers from 0 to 127 to represent alphanumeric characters and symbols

MATCHING -the sequence of changing frequencies used in FHSS

MATCHING -a technique that changes the height of a carrier wave in response to a change in the height of the input signal

What are the three types of modulation that can be applied to an analog signal to enable it to carry information?

What is the role of an antenna on a wireless device?

The _______________ non-return-to-zero encoding method represents a 1 bit by increasing voltage to a positive value and a 0 bit by decreasing the voltage to a negative value.

Which binary signaling technique reduces the voltage to zero during the transmission of a 1 bit before the bit period ends.

Which of the following is true about baud rate?

Which of the following is NOT a type of modulation that can be applied to an analog signal?

Describe the NRZ technique of representing bit signals.

Hopping codes used in FHSS transmissions are configured on the base station by the network administrator.

Which of the following is a spread spectrum technique that employs mathematical algorithms to recover lost data bits?

Data signals in a wireless communication system travel on _______________ waves.

Which of the following is NOT true about infrared light?

MATCHING -a signal of a particular frequency that is modulated to contain either analog or digital data

Which binary modulation technique employs NRZ coding such that the absence of a carrier signal represents a 0 bit?

The frequency of a wave is best defined as which of the following?

Spread-spectrum signals are more susceptible to outside interference than narrow-band transmissions.

How are bits transmitted using DSSS? Include the chipping code in your answer.

What is phase shift keying? Describe how it works.