Base Band and Rf Signals

Baseband and RF signal These low frequency signals are called baseband signals and once they are changed to higher frequencies the name changes as well to radio frequency (RF) signals  A baseband signal has all the frequencies from 0 Hz to the highest frequency component with significant power. After the frequency it changed for transmission the higher frequency RF signal will have at least double what the baseband signal had initially. This simply means that the baseband signal is converted to the radio frequency in order to have twice the bandwidth. Once the RF signal is received it is demodulated and demultiplexed in order to achieve the original baseband signal. So Baseband bandwidth is the bandwidth that exists before it is modulated or multiplexed or the baseband that results after demodulation and demultiplexing. Baseband can often be considered a synonym to lowpass or nonor nonmodulated REASON when low frequencies are sent the distortion is frequently so severe that the signal cannot even be used. So, what is to be done with the low frequencies to make them usable? The answer is that low frequency signals are copied and sent as higher frequencies for transmission purposes which makes the low frequency reach the final destination.