‫No.
‫If you ask me what is the most important communication function that is performed by the SDR?
‫It is modulation and the de modulation.
‫And in order to understand this, consider this example.
‫For example, this is SDR, which is acting as a transmitter and as its input.
‫It is receiving the signal from the microphone.
‫And what this microphone is doing, it is converting the voice signal into the electrical warpage signal,
‫which is a function of time.
‫Now, in order to see this signal in frequency domain, we take the 40 year transformable the signal
‫and then we take the photographs form of the signal.
‫We will see that this signal is centered at the zero hertz frequency.
‫So as this signal is centered at zero hertz frequency, we call it as the baseband signal.
‫And the bandwidth of this signal is measured from this zero hertz central frequency to the point where
‫the signal again becomes zero.
‫So this is a basement signal with this bandwidth.
‫Now, this signal in this form, cannot we glassmaker over divide less Jenna?
‫So what the Eskild transmitter does is that it modulates this signal.
‫Are in other words, it changes the center frequency of this baseman's signal to the Gadir frequency
‫with which this input signal is being modulated.
‫And now this signal is called as the boss man signal.
‫And the bandwidth of this signal is No.
‫This bandwidth starting from the point where it is zero and up till the point where this signal again
‫becomes zero.
‫And between these points is the bandwidth of this modulated signal.
‫And we can see that this bandwidth is double.
‫Thandi, what is basements?
‫Now, this signal, this passement signal would be amplified and sent over the wireless channel.
‫And in the wireless channel, the noise will be added to this modulated signal.
‫And this signal will then be received by the receiving end, Tina.
‫And then given to the receiver SDR and the receiver SDR will then demodulator the signal.
‫Or in other words, it will bring this signal back to the zero hertz central frequency.
‫And this signal is then given to the speaker, which leaves back.
‫This is it as the Y segment.
‫So the most important function of the SDR as far as the communication is concerned, is the more relation
‫and the demobilization without which the communication is not possible.