Amplification is the same as attenuation

Loss of power or loss of signal strength is called

Which of the following is NOT a characteristic of baseband communication?

What is the purpose of using a carrier signal in communication?

In carrier communication, how is the carrier signal modified by the modulating signal?

What does modulation refer to in communication?

An increase in signal to noise ratio decreases bit error rate

increase in bandwidth allows an decrease in data rate.

An increase in data rate increases bit error rate

Uses modem (modulator-demodulator) to convert digital data to analog signals and vice versa

Only used for optical fiber

ASK can be used more efficiently to transmit blocks of bits per frequency

For each of the following baseband signals, find the modulated signal m(t) cos10000t , m(t) = cos 1000t

A phase shift of 180 degree is equivalent to flipping the sinusoid or multiplying it by …

If a signal starts at a transmitter with 27 watts of power and arrives at a receiver with 9 watts of power. the signal loss in dB is calculated as follows:

…. transmits data over communication lines such as telephone and cables.

…. uses communication equipment to connect two or more computers and their resources

accepts transmission of data, instructions, or information

connects the sending device to the communications channel.

Communications channel: initiates instruction to transmit data, instructions, or information.