The indirect Armstrong method shown in Fig. Q4 is used to generate an FM signal with carrier frequency f=98 MHz and a minimum frequency deviation Af = 75 kHz. The baseband message signal has frequency components from 50 Hz to 15 kHz. For the NBPM stage, the modulation index B1=0.2 radians and the carrier frequency fi = 100 kHz. Assume that the available range of frequencies for the oscillator of mixer is 9MHz s f2 512 MHz, design and find the required values of frequency multiplication numbers, n, and n, and the frequency of mixer oscillator 82. Also fill in the missing values at table given below. Baseband signal Integrator Mixer Frequency multiplier 12 FM signal Narrowband Frequency phase multiplier modulator my 1 = 0.1 MHz Crystal- controlled oscillator 12 Crystal- controlled oscillator Figure. Q4 NBPM Output 1st multiplier output Mixer output 2nd multiplier output Carrier frequency Frequency deviation Modulation index The indirect Armstrong method shown in Fig. Q4 is used to generate an FM signal with carrier frequency f=98 MHz and a minimum frequency deviation Af = 75 kHz. The baseband message signal has frequency components from 50 Hz to 15 kHz. For the NBPM stage, the modulation index B1=0.2 radians and the carrier frequency fi = 100 kHz. Assume that the available range of frequencies for the oscillator of mixer is 9MHz s f2 512 MHz, design and find the required values of frequency multiplication numbers, n, and n, and the frequency of mixer oscillator 82. Also fill in the missing values at table given below. Baseband signal Integrator Mixer Frequency multiplier 12 FM signal Narrowband Frequency phase multiplier modulator my 1 = 0.1 MHz Crystal- controlled oscillator 12 Crystal- controlled oscillator Figure. Q4 NBPM Output 1st multiplier output Mixer output 2nd multiplier output Carrier frequency Frequency deviation Modulation index