Hi all,
I made a voice transmitter and receiver with 900MHZ linx modules, and it works great accept for the hisssss that overpowers small noises. I'm just using a regular ol' LM386 as my amplifier.
I want to make a 3khz low-pass filter. I just need some advice on what kind of filter would be the best? active, passive? LC, RC? I simply don't know where to begin with this :?