Introduction to Modulation

What is the process of converting a low frequency signal into a high frequency signal ?

• Modulation

• Lowpass filtering

• Highpass filtering

• None of these

Modulating signal is the information bearing signal.

• True

• False

The two forms of angle modulation are

• Amplitude modulation and frequency modulation

• Frequency and Phase modulation

• Amplitude and Phase modulation

• All of these

Which signal has the role of carrying information, in the context of modulation process ?

• Modulating signal

• Carrier signal

• Baseband signal

• None of these

Pick out the advantage of modulation from the choices.

• Due to modulation, antennas of large height are required.

• Multiplexing of signals can be carried out.

• Interference will be increased.

• Low frequency signals can be amplified.

TDM stands for

• Time Division Multiplying

• Time Division Multiplexing

• Time Digit Multiplying

• None of these