Quiz No. 01 of The Course Communications Technology (ET-353)

Applications of L band are

• Astronomy

• Digital Audio Broadcasting

• Satellite navigation

• Mobile service

• All of the Above

In a receiver, distortion can occur in ________

• Mixer

• Detector

• IF amplifiers

• Either mixer or detector or IF amplifiers

AM waves is represented by which equation?

• [1 + m(t)].c(t)

• [1 – m(t)].c(t)

• [1 + m(t)].2c(t)

• [1 + 2m(t)].c(t)

Modulation is also called detection.

• True

• False

ISI stands for ________

• Inter Symbol Interference

• Inter Signal Interference

• Inter System Interference

• Inter Sound Interference

Signal to noise ratio is calculated as signal voltage divided by noise voltage.

• True

• False

In a RADAR system the transmitter of the radar is more sensitive than the receiver.

• True

• False

The radar in which both transmission and reception is done using the same antenna are called:

• Monostatic radar

• Bistatic radar

• Monopole radar

• Dipole radar

The term radar cross section defines the:

• Scattering ability of the target

• Power radiating ability of the radar

• Amount of energy scattered by unwanted objects

• Cross section of radar area through which energy is emitted

The transmitter-receiver combination in the satellite is known as a _______

• Relay

• Repeater

• Transponder

• Duplexer