Questions tagged [am]

Why the value of intermediate frequency (IF) of amplitude modulation (AM) is 455 kHz? Why not another value?

How do you choose the values of the capacitor and the resistor in an envelope detector circuit? In my case, the frequency range is from 20 Hz to 20,000 Hz. Also, am I correct in understanding that usually Schottky diodes are used in the circuit…

So I bought a radio and for some days I have been noticing that a channel with static frequency at somewhere around 880 KHz Is tuning properly during day time but at night, the channel can be heard for a wide range of frequency, I mean , at night ,…