In an Armstrong - type FM generator in Figure 2 the crystal oscillator frequency is 210 KHz. The maximum phase deviation is limited to 0.2 to avoid distortion. Let fm range from 50 Hz to 15 Hz. The carrier frequency at the output is 108 MHz, and the maximum frequency deviation is 75 KHz. Select multiplier and local oscillator frequencies. , fo Maltiplicr Froquency oMakiplier fa BPF NBFM JAfi MAf ef. M:AfA miter Local oscillater Figure 2