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Assertion: The process of testing the frequency response of amplifier and filter can be done by sweep frequency generator that automatically varies its frequency over a pre-determined range. Reason: The sweep frequency generator should have a ramp generator which applies a linear ramp voltage the input of a voltage tuned oscillator (VTO).

Assertion: The process of testing the frequency response of amplifier and filter can be done by sweep frequency generator that automatically varies its frequency over a pre-determined range. Reason: The sweep frequency generator should have a ramp generator which applies a linear ramp voltage the input of a voltage tuned oscillator (VTO). Correct Answer Both A and R is true and R is the correct explanation of A

A Signal generator is a very important component in a test setup and electronic troubleshooting.

The applications of signal generators include:

  • Checking the state gain
  • Frequency Response
  • Alignment in the receiver

 

In a signal generator, we have an oscillator that provides a sinusoidal output signal and a generator that provides sine wave, square wave, triangular wave, amplitude-modulated waveform.

Sweep frequency generator:

It is a type of signal generator that can automatically vary its frequency smoothly and continuously over an entire frequency range (Assertion is Correct). The figure below represents the basic block diagram of a sweep generator:

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We observe that the sweep frequency generator has the ramp generator and the voltage tuned oscillator as its basic components to automatically varying the frequency.

The output of the ramp generator is a linear ramp voltage that serves as the input to the voltage-tuned oscillator.

So, Both A and R is true and R is the correct explanation of A

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