The message signal m(t) shown in the figure below is applied to an FM modulator.

If the maximum frequency deviation of the resultant FM signal is 3 kHz, then the frequency sensitivity of the FM modulator will be _________kHz/V.
1.5

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Solution

The correct option is A 1.5

$| m (t) |_{max} = 2 V$

$Δ f_{max} = 3 k H z = k f | m (t) |_{max}$

Frequency sensitivity, $k_{f} = \frac{Δ f_{max}}{| m (t) |_{max}} = 1.50 k H z / V$

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The message signal m(t) shown in the figure below is applied to an FM modulator. If the maximum frequency deviation of the resultant FM signal is 3 kHz, then the frequency sensitivity of the FM modulator will be _________kHz/V.1.5

The correct option is A 1.5 |m(t)|max=2 V Δfmax=3 kHz=kf|m(t)|max Frequency sensitivity,kf=Δfmax|m(t)|max=1.50 kHz/V

The message signal m(t) shown in the figure below is applied to an FM modulator.

If the maximum frequency deviation of the resultant FM signal is 3 kHz, then the frequency sensitivity of the FM modulator will be _________kHz/V.
1.5

The correct option is A 1.5

$| m (t) |_{max} = 2 V$

$Δ f_{max} = 3 k H z = k f | m (t) |_{max}$

Frequency sensitivity, $k_{f} = \frac{Δ f_{max}}{| m (t) |_{max}} = 1.50 k H z / V$