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DOCSIS Codewords and their Importance in Monitoring RF Performance

By Rick Yuzzi | December 6th, 2018 |Categories: DOCSIS, Codeword Errors, Diagnostics, Monitoring

Codewords are a key feature and an important check on data transmission in DOCSIS networks. They are are often able to recreate bad bits of data corrupted by linear distortions and noise in the cable plant if the corruption is not too bad (a [...]

Tracking Down Ingress in Your Return Path

By Rick Yuzzi | April 27th, 2016 |Categories: DOCSIS, ingress, return path, Technology, Upstream Analyzer

Every cable operator has a constant struggle with ingress. As external RF signals leak into the return path from various sources, that noise accumulates and funnels upstream to the CMTS. This cumulative effect can cause a significant impact on [...]

DOCSIS 3.1 Series: PNM - A 3-Step Plan for Success Part Three

By Sheenika Wilson | July 22nd, 2015 |Categories: Blog, case study, DOCSIS, Fidelity Communications, PNM, proactive network maintenance, Technology

The days of using the "break/fix" method of troubleshooting cable plant issues are quickly fading, and cable operators have DOCSIS Proactive Network Maintenance (PNM) to thank for that. With PNM in use, operators are able to identify network [...]

DOCSIS 3.1 Series: DOCSIS 3.1 and the PNM Toolbox Part Two

By Marsha Hemmerich | July 15th, 2015 |Categories: Blog, DOCSIS, DOCSIS 3.1, PNM, proactive network maintenance, Technology

If you read last week’s Part 1 in our DOCSIS series and the white paper on the Evolution of DOCSIS, you now have a better understanding of why we have specifications, what those specifications can do for the cable operator’s business and what the [...]

Ask a Broadband Expert - DOCSIS Pre-Equalization

By Marsha Hemmerich | January 30th, 2014 |Categories: ask a broadband expert, Ask an Expert, DOCSIS, interview, pre-equalization

DOCSIS pre-equalization is a subject that every cable provider should know more about. With a simple line of code on the CMTS, you can achieve an immediate and significant improvement in your upstream signal levels.

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