Brady Volpe Archives

13 06, 2024

Coaxial Cable Impedance, Attenuation and Beyond

Mia Colabrese2024-06-13T09:40:50-04:00June 13th, 2024|

Some people say coax but Ron likes coaxial cable. Coaxial cable has been a key component in our networks dating back to the industry's early days. As such, it's easy to take coax for granted without really understanding just what it is. Here's your chance to learn more about coaxial cable, along with a high-level look at some of its characteristics such as impedance, attenuation, velocity of propagation, DC loop resistance, and more. Please tell us your thoughts in the comments. Coax or Coaxial? 📡 --- Ron's Bio:

What Can DOCSIS PNM Do For Me?

Mia Colabrese2020-06-11T11:10:05-04:00February 26th, 2019|

It's a Question You Might Ask Yourself Proactive network maintenance (PNM) has been steadily growing in acceptance and popularity over the past several years with adoption amongst cable operators from Tier 1 such as Comcast all the way to the smallest Tier 4 operators — both in the U.S. and internationally — as a tool for optimizing their work force and improving subscriber quality of experience (QoE). No longer is it seen as a shiny gimmick or a novelty to detect the poltergeist in the network before it

Demystifying OOB and R-PHY

Mia Colabrese2020-04-02T12:21:56-04:00December 14th, 2018|

Benefits and Limitations, Choose your R-PHY Wisely In this article we dive into Data-Over-Cable Service Interface Specifications (DOCSIS) remote PHY (R-PHY) testing challenges and how these can be overcome using out-of-band (OOB) channel communications. Test and Measurement Challenges with R-PHY Let’s understand the fundamental challenges with testing in an R-PHY world. Today’s radio frequency (RF) test equipment, such as sweep, return path monitoring, and leakage is based on analog signals. Figure 1 illustrates how typical headend / hub test equipment signals traditionally flow to or from an analog