3. (50 points) Design a WBFM transmitter that uses the indirect method of WBFM generation (an...

3. (50 points) Design a WBFM transmitter that uses the indirect method of WBFM generation (an Armstrong modulator). The input (modulating) signal is a 1 KHz tone, and the output signal should have maximum frequency deviation of 75 KHz and carrier frequency of 100.7 MHz. Set the modulation index of the NBFM section to be 0.3 and the initial carrier frequency to be 819.2 KHz. You have available frequency multipliers with multiplication factors of 10, 15, 20 and 25. Show a complete block diagram, indicating the carrier frequency and modulation index after each block, and center frequency and bandwidth of any BPFs (use Carson's Rule to estimate FM signal bandwidths).