Test: Communication-2

Slope overload distortion occurs in

The Nyquist sampling interval, for the signal sinc (700 t) + sinc (500 t) is

In case of data transmission, which one of the following system will give maximum probabilityof error ?

Frequency shift keying is used mostly in

PAM signal can be demodulated by using

Modems are used for data transmission intelephone lines to

Capacity of a channel is given by

The channel capacity of a noiseless channel is equal to

The noise at the input to an ideal frequencydetector is white. Detector is operating above threshold. Power spectral density of noise atoutput is

The capacity of an analog communicationchannel, with 4 kHz bandwidth and 15 is valueof SNR, is

Noise has greatest effect in a communicationsystem when it interfere with signal.

Power spectral density of white noise

A system has a receiver noise resistance of 50W.It is connected to an antenna with an input resistance of 50W. The noise figure of the system is

Which one of the following types of noise gains importance at high frequency

Noise voltage in a resistor is relates as

Most usefull approach to radar system formonitoring the speed of moving vehicle is

Which one of the following circuits transmits twomessage simultaneously in one direction

The most probable bandwidth of a transponderin a satelite communication system is

The blind speed of an MTI radar can be avoidedby changing the

Order of wavelength for satelite communicationis

Radar system uses

Modem is used with personal computer to