About Mia Colabrese

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So far Mia Colabrese has created 319 blog entries.
22 02, 2023

Are Staples in Coax Cable Impacting My DOCSIS speed?

2023-02-22T17:43:08-05:00February 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

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1 02, 2023

vCMTS Operations with Intel

2023-02-01T10:59:24-05:00February 1st, 2023|

In this must-watch video, join Brady Volpe and Thuy Nguyen from tech giant Intel as they dive deep into the fascinating world of virtual CMTS (vCMTS) operations. They'll be discussing the critical aspects of vCMTS operations in a cable operator network and sharing their wealth of knowledge and expertise. Don't miss this opportunity to gain valuable insights and expand your understanding of vCMTS operations. So, grab a notebook and get ready to take some notes because this video is packed with valuable information that you won't want to miss!

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29 01, 2023

What is a dB?

2023-05-01T16:12:26-04:00January 29th, 2023|

What is a dB? RF and Cable Basics :: Brady Volpe and Ron Hranac discuss RF and cable basics in a new series designed to help those who are interested in understanding RF and Cable TV technology a little better. In this first episode we cover what is a decibel (dB). This is a fundamental unit of measure that every person working in the cable industry should understand. To learn more, watch this episode 0:00 Intro 4:30 The Decibel Primer Beginning 5:13 What is a Logarithm 9:15 Question

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27 01, 2023

OUDP Leakage Detection

2023-01-29T16:29:25-05:00January 27th, 2023|

Brady Volpe, John Downey, Jason Miller (Cisco) and Flavio Marcon (Effigis) discuss how OFDM Upstream Data Profile (OUDP) test burst in cable modems are used in the measurement of cable leakage tests in high-split cable plant. • What is leakage testing and why do we need it? • How is leakage testing done today • What is high-split and why are we do we need it? • Why can’t we do leakage testing the same way we have been in a high split system? • What is OUDP?

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13 12, 2022

OFDMA Capacity Estimation

2023-01-27T12:27:23-05:00December 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

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22 11, 2022

The DOCSIS Virtual CMTSs

2022-11-30T19:25:00-05:00November 22nd, 2022|

At this year’s SCTE Cable-Tec Expo I had the opportunity to present a topic on the “Top-5 Things You Should Know About Operating a Virtual CMTS.” While there are more than five things one should know about vCMTSs, the general overview is a virtual CMTS (vCMTS) is nearly identical in performance to a legacy CMTS but differs in some very interesting ways. This article provides a brief overview of the original presentation and hopefully will encourage readers to take a deeper look at the benefits of vCMTSs and

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24 10, 2022

What is Possible with a DOCSIS 3.1 Modem Today

2022-10-24T11:38:28-04:00October 24th, 2022|

Brady Volpe and John Downey discuss what you can expect to get out of DOCSIS 3.1 cable modem today. How many modems can transmit in a 6.4 MHz OFDMA channel? How much life is in the DOCSIS 3.1 modem for your network. Also a SCTE EXPO overview and wrap. What is Possible with a DOCSIS 3.1 Modem Today? This is episode 85 of Get Your Tech On, our show on All Things DOCSIS. Our topic for today is What is Possible with a DOCSIS 3.1 Modem, an

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12 09, 2022

DOCSIS Softwarization in a DAA and Virtualized Network

2022-10-24T10:57:55-04:00September 12th, 2022|

As technology continues to evolve, DOCSIS Softwarization in a DAA and virtualized network is a necessity. What does this mean exactly? Join Brady Volpe with special guest Tadeusz Ciesielski, Chief Technology and Innovation Officer at Falcon V Systems as they discuss the evolving technology hurdles cable operators face as DOCSIS hardware becomes increasingly more DOCSIS software. Management of critical DOCSIS 3.1 and DOCSIS 4.0 infrastructure requires software orchestration. Further, virtualization and virtual CMTSs (vCMTS) can benefit from rapid software deployment cycles. Aligning to these changes requires operational

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7 09, 2022

Got a DBC to Change Your Cable Modem’s OUDP IUC? I thought so.

2022-09-07T14:31:24-04:00September 7th, 2022|

What is a cable modem’s OUDP? What’s an IUC? What’s a DBC? If you already know these initialisms that is awesome. If you don’t, that is fine too. DOCSIS 3.1 introduced OFDMA for more efficient upstream data transfer. In this article, I’ll cover how an impairment will cause the CMTS to change a single CM’s OUDP IUC using a DBC transaction. I will also hopefully help you understand what the heck I just said.What are cable modem profiles?Let us start the discussion with orthogonal frequency division multiple access

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