The actual occupied bandwidth of an FM broadcast station is about 250 kilohertz when significant sidebands are taken into account. You could demodulate the signal in a narrower bandwidth at the expense of increased distortion so a 192 kilohertz sample sound card might just get by.
i2phd wrote: > --- In [email protected], "Adnan Yusuf" <[EMAIL PROTECTED]> wrote: > >>Okay people tell me something, suppose I have a soundcard with a >>sampling rate of 96khz for recording(mic),can I then use it for FM >>reception,ofcourse I am thinking of using the IQ approach. FM signals >>lie in the 100Mhz neighbourhood.Please reply stating reasons.Thanks >>alot for reading through. >> > > Apart from other technical considerations, the 96 kHz of the sound > card do not seem enough for the kind of large band FM modulation used > by the FM broadcasting stations in the 88 - 108 MHz segment. > > I don't have here an exact number, but I seem to recall that the > bandwidth occupied is in the order of 150 kHz. > > 73 Alberto I2PHD > > >
