Elements of a Communication System

What should be the length of dipole antenna for a carrier wave of frequency $5\times {10}^8\mathrm{Hz}$ ?

What should be the length of dipole antenna for a carrier wave of frequency $6\times {10}^{8}H\text{z}$ ?

Which of the following can represent a descrete signal.

An analog signal is a continuous signal in which one time-varying quantity (such as voltage, pressure, etc.) represents another time-based variable.

Which of the following is an example of point to point mode of communication?

Attenuation causes loss in signal strength.

A communication satellite is essentially a repeater station in space.

An example of point to point mode of communication is

The output transducer of the communication system converts the radio signal into 

The signal is affected by noise in a communication system

The length of a half wave dipole antenna at  $1 \mathrm{MHz}$ is _____$\mathrm{m}$.

What should be the maximum acceptance angle at the aircore interface of an optical fibre if $n_1$ and $n_2$ are the refractive indices of the core and the cladding, respectively

The RF channel in a radio transmitter produces

What should be the maximum acceptance angle at the aircore interface of an optical fibre if $n_1$ and $n_2$ are the refractive indices of the core and the cladding, respectively

The transmission media can be

The cladding material of optical fibre has refractive index

The output transducer of the communication system converts the radio signal into 

The signal is affected by noise in a communication system

The signal is affected by noise in a communication system

The output transducer of the communication system converts the radio signal into