PNM Archives

5 12, 2023

The Reactive Power of DOCSIS PNM Tools

Mia Colabrese2024-01-16T11:28:31-05:00December 5th, 2023|

In the demanding realm of DOCSIS networks, being proactive has become a necessity, not a luxury. To ensure efficient operation of these networks, cable operators must embrace proactive network maintenance (PNM) tools. These resources not only offer the ability to anticipate and address network issues before they significantly affect service delivery, thus creating a more robust and reliable network for users, but they can also be utilized reactively to help optimize the workforce, improve subscriber quality of experience (QoE) and are not impacted by supply chain constraints. Let’s

29 11, 2023

PMA-PNM Connection in DOCSIS 3.1

Mia Colabrese2023-11-30T08:58:56-05:00November 29th, 2023|

DOCSIS 3.1 modems have ushered in a new era of high-speed connectivity. However, ensuring their consistent performance, especially in the face of network impairments, demands a robust strategy. This is where the synergy of the profile management application (PMA) and proactive network maintenance (PNM) becomes invaluable. The twin pillars of optimal network performance 1. The PMA is designed to compensate for RF impairments in OFDM and OFDMA channels—it doesn’t fix the impairments, but goes a long way to work around them. Function: PMA is dedicated to refining the data

24 05, 2023

UTSC

Mia Colabrese2023-07-07T21:52:56-04:00May 24th, 2023|

Welcome, Brady Volpe and John Downey will dive into the world of UTSC (Upstream Triggered Spectrum Capture) for return path monitoring in a DAA world, how cable operators can harness these game-changing technologies. Join us as we discuss the latest updates on UTSC and PNM. Whether you're a cable operator looking to stay ahead of the competition or a curious tech enthusiast eager to learn about the next generation of broadband technology, this video is a must-watch! this video is a must-watch! Brady Volpe and special guest John

23 02, 2023

Why should PNM be on your mind?

Mia Colabrese2023-02-23T13:29:46-05:00February 23rd, 2023|

Why should PNM be on your mind? Discover the power of PNM in this informative panel discussion with industry leaders Brady Volpe, Jason Rupe of CableLabs, and Larry Wolcott of Comcast. Learn why PNM should be top of mind for anyone in the tech industry and the numerous benefits it offers. Tune in now and gain valuable insights from the experts in this must-watch video! Be sure to join and ask your own questions in the live chat! Topics: 0:00 Inro 2:15 What is FMECA 5:00 Where FMECA

22 02, 2023

Are Staples in Coax Cable Impacting My DOCSIS speed?

Mia Colabrese2023-02-22T17:43:08-05:00February 22nd, 2023|

I recently posted a YouTube short (https://www.youtube.com/shorts/n5ucjCb-iGA). ) about how staples in coaxial cable can cause micro-reflections and interfere with subscriber modems. The video was well-received, and I received a lot of feedback, including real-world experiences and questions about the implications of these issues. Let’s take a closer look at this subject. Staples in coax cable meets the real world Let’s start off with an example of real-world feedback I received. The example goes as follows: “I’ve had calls for this. Poor US voice quality. My worst

13 12, 2022

OFDMA Capacity Estimation

Mia Colabrese2023-01-27T12:27:23-05:00December 13th, 2022|

OFDMA Capacity Estimation, pre-eq, LTE & 5G Ingress and more! Your questions answered Brady Volpe and John Downey discuss OFDMA Capacity Estimation, pre-eq, LTE & 5G Ingress and more! In this episode we cover incoming questions from our listeners covering a wide variety of topics. Be sure to join and ask your own questions in the live chat! 0:00 Intro 3:55 Calculating OFDMA Capacity 11:56 Summary of SC-QAM and OFDMA Calculations 17:40 Understanding 1.6 MHz Upstream power reference 28:14 Entering the industry and finding training 36:17 What are

19 07, 2022

Full Band Capture Troubleshooting by Impairment Type

Mia Colabrese2022-07-20T14:29:56-04:00July 19th, 2022|

In this episode Brady Volpe of Nimble This and The Volpe Firm, and John Downey (of Cisco) discuss portions of the document "Understanding Cable Network RF Spectrum Displays". This document, created by CableLabs and SCTE Working Group 7 (WG7) is a masterpiece of understanding full band capture (FBC) and the impairments found with FBC. We have covered FBC before, but we have not gotten deep into each impairment type. We go much further in this episode and give you a preview into the soon to be release WG7 document.

14 03, 2022

Upstream Transmit Power with OFDMA

Mia Colabrese2022-06-06T08:49:58-04:00March 14th, 2022|

In this episode Brady Volpe of Nimble This and The Volpe Firm, and John Downey (of Cisco) discuss Upstream Transmit Power with OFDMA and elaborate why a cable modem’s transmit power is extremely important. It not only determines if the cable modem will be able to come online and register with the CMTS (cable modem termination system) but obtaining the optimal transmit power will make or break the subscriber’s quality of experience (QoE). A DOCSIS 3.1 cable modem’s transmit power introduces some new considerations which are discussed in this

28 12, 2021

House amps, Cable Modems with filter issues

Mia Colabrese2022-03-14T13:42:30-04:00December 28th, 2021|

In this episode Brady Volpe of Nimble This and The Volpe Firm, and John Downey (of Cisco) elaborate on how to use PNM tools to identify house amps, Cable Modems with filter issues, etc. So houses can be identified with incompatible filters for intended UpStream spectrum deployments. Want to know what might be interesting and useful to you? Join in on the discussion and ask questions in the chat for another power hour of cable and the discussion on all things DOCSIS and beyond. Give us a thumbs

4 06, 2021

Machine Learning and PNM

Mia Colabrese2021-08-13T08:43:30-04:00June 4th, 2021|

Machine Learning and PNM Yes, it’s real and yes, it’s deployed and working! The day has arrived, Skynet is here! [1]. Fortunately, no to Skynet and in more good news our machines are in the cable plant and they are learning. They have been deployed into the cable world and they are finding the nasty impairments we knew were there. Machine learning and PNM are making the technician’s job easier on many levels. It’s much easier to find the impairments, it’s significantly easier for technicians to know what