I shouldn't trust my memory! The pilot tone is 19KHz and the L-R information is amplitude modulated onto a 38KHz suppressed carrier signal. I doubled the frequencies in my addled memory. Doh!
73 de Chris G4NUX i2phd wrote: > > > --- In [email protected] <mailto:soft_radio%40yahoogroups.com>, > "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 > >
