Consider the periodic message signal shown in the figure below:
The message signal is applied to a phase modulator to modulate the phase of a sinusoidal carrier. If the phase sensitivity of the modulator is \(\rm k_p = \frac{\pi}{2} \) rad/V, then the maximum frequency deviation (in kHz) of the resultant PM signal will be ___________.
Enter numerical value using the virtual keypad. Round off where necessary.