Your source for the latest in broadband operations.

Broadband: Finding Spectrum for Channel Bonding

Tue, 1 Jul 2008 0:00:00 EDT

The latest iteration of Data Over Cable Service Interface Specification - DOCSIS 3.0 - has been in the news recently. Several cable modem termination systems (CMTSs) and cable modems have received qualification and certification respectively from CableLabs, and pre-DOCSIS 3.0 channel bonding deployments have...

System of the Year: TWC Carolina

Tue, 1 Jul 2008 0:00:00 EDT

"No man is an island." - John Donne (1572-1631)...

Broadband: The Mathematics of Field Strength Measurements

Sun, 1 Jun 2008 0:00:00 EDT

In July 1991, I penned an article with the same title as this month's column. It was inspired by a call from friend and colleague Ralph Haimowitz, who commented that he had seen a recent paper discussing, among other things, the conversion between microvolts (µV) and microvolts per meter (µV/m)...

Broadband: Grounding Effectiveness at RF

Thu, 1 May 2008 0:00:00 EDT

Various codes such as the National Electrical Safety Code (NESC) and National Electrical Code (NEC) - which are often adopted into law by local, county or state governments - mandate grounding and bonding of cable networks. The fundamental purpose of grounding and/or bonding is safety of people and...

Managing Edge Resources

Sat, 1 Mar 2008 0:00:00 EST

Reclaiming stranded resources is the name of the game, and two alternatives have emerged....

BROADBAND: Transient Voltage Surge Suppression

Sat, 1 Mar 2008 0:00:00 EST

Among the highlights of this year's International Consumer Electronics Show in Las Vegas was Panasonic President Toshihiro Sakamoto's introduction of the company's Life Screen, a concept 150-inch high definition (HD) plasma display panel. At 4,096 x 2,160 pixels, this HDTV set has four times the resolution...

Broadband: RF CNR vs. Baseband Video SNR

Fri, 1 Feb 2008 0:00:00 EST

If one were to measure RF carrier-to-noise ratio (CNR) and baseband video signal-to-noise ratio (SNR) for the same analog TV channel, how would the numbers compare? This definitely falls into the "it depends" category. Much has been written over the years about CNR vs. baseband video SNR, but the...

Ethernet Technology: It’s Testing Time

Tue, 1 Jan 2008 0:00:00 EST

As Ethernet continues to shift into a carrier-class technology, maintaining quality of service (QoS) while maximizing throughput is increasingly critical to ensuring proper performance and a high quality customer experience....

A Delicate Balance: Alternatives for Multi-Wavelength Systems

Tue, 1 Jan 2008 0:00:00 EST

Node splits and node segmentation are among the tools available to cable operators to deal with seemingly ever-increasing bandwidth demands and plant extensions. But how can a node be segmented when there is not enough fiber in the outside plant?...

DOCSIS Migration Methodology

Thu, 1 Nov 2007 0:00:00 EDT

The strategy derives from analyzing service requirements and network capacity. But first understand your product roadmap, the benefits of DOCSIS technologies and your current network....