Hello, I am working on some homework and wish to learn how to attenuate a strong signal so it doesn't interfere with another desired frequency. My question is; a strong signal at 2.45 MHz is interfering with an AM signal at 980 Hz. Design a filter that will attenuate the undesired signal by at least 60 dB. First I extract given data; 2.45 MHz (signal to be attenuated) 980 kHz (desired signal) 60 dB (factor which undesired frequency needs to be attenuated) I know I wish to implement a low-pass filter but I dont know how to go about creating a circuit from the 3 given values. I tried to use the voltage gain relationship, Gain [dB] = 20log(Vout/Vin) but, this just gives me Vout/Vin which I fail to see useful when I am only given an undesired frequency and a desired one. I'm confused what order the filter needs/can be. I'm confused about how to get the transfer function from the given information. I believe once I have the transfer function I can draw the circuit. Any ideas, obvious misunderstanding or suggestions? Thanks for reading.