A baseband signal may have frequency components going all the way down to the DC bias, or at least it will have a high ratio bandwidth. A modulated baseband signal is called a passband signal. This occupies a higher range of frequencies and has a lower ratio and fractional bandwidth.
A baseband signal may have frequency components going all the way down to the DC bias or at least it will have a high ratio bandwidth. A modulated baseband signal i,s calle.d a passband signal. This occupies a higher range of frequencies and has a lower ratio and fractional bandwidth