14–61 An amplified portion of the radio spectrum is shown in Figure P14–61. You need to hear all of the signals from 1.0 to 2.0 MHz, but there is an interfering signal at 1.8 MHz. Design a notch filter to reduce that signal by at least 50 dB and not reduce the desired signal at 1.7 MHz by more than 6 dB. Use Multisim to validate your design.

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-120-100-80 -60 -40 -20 -0 +20 ITUD AB 11.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 Frequency in MHz FIGURE P14-61