Zenith Cable Modem is one of the first proprietary cable modems deployed at limited scale. There were 2 basic models, one operating at 500 kbit/s, the other at 4 Mbit/s using BPSK and about a 25% alpha.
Read more about Zenith Cable Modem: History, Product Versions, Technology Demonstration To Initial Deployment, The Zenith MAC Layer, Provisioning A Zenith Cable Modem, A Nascent Market - Quality Perceptions and Reality, RF Requirements For A Reliable Zenith Network, “State of The Art” RF Plant Maintenance in 1994/1995, First Zenith Network Network Operations Center (NOC), Videoconferencing Over Cable Modems in 1994/1995, Zenith At Cogeco in Canada
Other articles related to "zenith cable modem, cable modem, zenith":
... Canada launched with the 4 Mbit/s, external Rev D cable modem in roughly 1996, and by August 1997 had 2500 subscribers ... The network was failing for 3 reasons The Zenith network is a pure bridged CSMA/CD Ethernet ...
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