WHAT IS ANALOG,DIGITAL SIGNAL?
WHAT IS REPEATER?
WHAT IS ATTENUATION?
analog signal : signal with continuous function of time
digital signal : signal with discrete function of time
repeater : it consist of large no of receiver and transmitter .repeater picks up a siganl amplifies it and retransmit it to the receiver .
attenuation : the phenomenon of losing the strength of signal during its propagation is called attenuation. So in order to minimize its attenuation amplification of siganl is done ...:)
hope it helps and crt me if im wrong ...:))