Most forms of Ethernet use pulse amplitude modulation (PAM) constellations. In PAM signal modulation, information is encoded in the amplitude of a series of signal pulses.6 may 2016
Is cable Internet analog or digital?
cable modem, modem used to convert analog data signals to digital form and vise versa, for transmission or receipt over cable television lines, especially for connecting to the Internet. A cable modem modulates and demodulates signals like a telephone modem but is a much more complex device.
Is Ethernet an analog signal?
Ethernet PHY was a pure analog design, no major signal processing challenges there. ... these same analog providers redesigned their analog PHY solutions for the higher data rates.2 oct 2000