Interview by Stewart Schley – More than 30 years ago Rouzbeh Yassini, the CEO of a then-unheralded tech company named LANcity, began leading a 13-person team that worked tirelessly to develop the first-ever cable modem.
MUST READ ARTICLES
By Brady S. Volpe – What is FDX DOCSIS? FDX supports the potential to scale to symmetrical throughput, whether one uses R-PHY or R-MAC/PHY. So let’s explore how FDX DOCSIS works and the benefits it has to offer. FDX DOCSIS is an extension to the DOCSIS 3.1 specification and is included as Annex F in the DOCSIS 3.1 PHY specification
By Jeff Finkelstein – Like many of my and later generations, I spent time working in a fast food restaurant as a way to make money while in college. Having gone to college at 16 years old my work choices were limited by: the distance to where my dorm was located as I did not have a car and took public transit; flexible hours to let me work at different times
By H. Mark Bowers – I believe this exercise raises the issue of how one is to perform accurate field strength measurements at higher LTE frequencies, where there is a low-level leak from the HFC plant (especially QAM), while LTE signal levels comprise the bulk of the spectral energy and overall field strength.
By Steven Harris – The transport medium of choice for these future cable access networks and next generation services will be fiber optic cabling. As I shared in my previous articles, operators are focused on improving the quality of the network and transforming them with new fiber deep, FTTx, and distributed access architecture (DAA) technologies.
By Ron Hranac – Making accurate signal level measurements is not quite as simple as it might seem at first glance. This installment concludes the discussion about various factors that can affect those measurements, and includes tips to ensure more accurate and reliable results.
By Patrick Hunter — For a refresher, Ethernet was standardized as IEEE 802.3 in 1983. Remember, the standard covers both physical wiring and signaling standards at Layer 1 of the OSI model as well as functionality at Layer 2, the data link layer. Now let’s dive in.
By Michael Garramone and David Ririe – The fruits of our labors were later seen with our FTTH and CCAP deployments, and will now be realized with DAA. This has put us in prime position for the next step, everybody’s favorite buzzword, automation. We have a new organization focused on maintenance verification, software upgrades, customer provisioning, and among other things, compliance standards.
On December 11th, The Cable Center celebrated the official ribbon cutting of the “Edward D. Breen Technical Archives” and the “Breen Room” meeting lounge. The ribbon cutting was commemorated with a reception and celebration of the many improvements made possible through a generous donation from Ed Breen.
By Jerry Lundwall – Over the past two decades, Broadband Library has told countless stories of the people who have and continue to make this amazing industry what it is. Cathy’s mantra, “We tell the story,” was more than a slogan. Cathy made sure of it in every issue on the pages of her creation, as told through industry titans, technologists, innovators, pioneers and business leaders.
By H. Mark Bowers, Cablesoft Engineering, and Ron Hranac, Cisco Systems – In the latter part of 2012 the Federal Communications Commission issued a Notice of Proposed Rulemaking (NPRM) summarizing, among other things, proposed changes to Part 76 of the FCC Rules pertaining to proof-of-performance testing on digital signals and leakage requirements for digital signals