As DOCSIS 3.0 evolved and most ISPs/MSOs replaced their DOCSIS 2.0 Modems with DOCSIS 3.0 Modems, there was a challenge with “DOCSIS 3.0 Upstream Power Levels” in the field. What is the Challenge? Do we really need our DOCSIS 3.0 Modems to support “Extended Upstream Transmit Power”? How do I find if my Modem supports this feature? This article tries …
OFDM Sub-Carrier ranges on DOCSIS 3.1 Cable modem
Since DOCSIS 3.1 cable modems are out in the market for few months and ISPs such as Comcast have enabled OFDM in many of their regions, a question that is getting commonly asked what do “active sub-carrier number range” mean and what is the total OFDM spectrum size. Here we take take example from our best CM1000 DOCSIS 3.1 Cable modem …