DOCSIS Troubleshooting Archives

29 01, 2023

What is a dB?

Mia Colabrese2023-05-01T16:12:26-04:00January 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

27 01, 2023

OUDP Leakage Detection

Mia Colabrese2023-01-29T16:29:25-05:00January 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?

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

21 08, 2019

High Latency is “Killing” you

Mia Colabrese2019-08-21T10:30:19-04:00August 21st, 2019|

Why is Low Latency DOCSIS Relevant to Gameplay and Why You Should Care Gaming is a billion-dollar industry with billions of players, and they use broadband to get there. I’ve spent a lot of time discussing the importance of low latency DOCSIS over the last couple of years on my podcast and YouTube channel. Let’s dive into it a bit more. Low latency or ping is desirable to achieve smoother gameplay and a user experience without lagging. If the ping is around 1000 milliseconds or higher, it’s definitely

10 09, 2018

Optimizing the DOCSIS Upstream

Mia Colabrese2018-09-10T08:37:20-04:00September 10th, 2018|

Data-Over-Cable Service Interface Specifications (DOCSIS) version 3.1 offers a host of exciting possibilities and realities for cable operators. I have covered many of these topics in previous articles but the one thing that cannot be overlooked is the basics. It doesn’t matter how great these new technologies are if you do not pay attention to the foundation. It’s not any different than a house. If your foundation isn’t solid who cares if you have the best theater system in it. It can crumble under foot if the foundation

12 06, 2017

Unmanaged DOCSIS WiFi – The Last 100 Maddening Feet

Mia Colabrese2017-06-12T07:59:30-04:00June 12th, 2017|

Yeah Baby - Unmanaged DOCSIS WiFi - The Last 100 Maddening Feet One Billion dollars plus is spent yearly on residential unmanaged DOCSIS WiFi accounts, according to CableLabs. You heard me right and I’m not quoting Austin Powers here. How is this possible? Okay, let’s review: Subscriber’s unmanaged WiFi networks are causing a ton of customer service representative (CSR) calls and over $1 Billion plus dollars in multiple-system operator (MSO) spending. Subscriber unmanaged WiFi is a big dollar and optics issue for the industry. Most subscribers do

17 05, 2017

Remote PHY – What is All the Hype?

Mia Colabrese2021-08-16T16:02:18-04:00May 17th, 2017|

Remote PHY - What is All The Hype? Remote PHY - What's All The Hype? - Today is May 12 and this is episode 28 of Get You Tech On, our show on All Things DOCSIS. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. With us is the man who is world famous for being the Van Dam of Cable, John Downey, CMTS Technical Leader at Cisco Systems, welcome John thanks for coming back again. Today’s episode is a good one. This is Remote PHY -

18 04, 2017

DOCSIS CMTS Best Practices Recommendations Part 2

Mia Colabrese2021-08-16T16:13:00-04:00April 18th, 2017|

DOCSIS CMTS Best Practices and Recommendations Part 2 Episode 27 DOCSIS CMTS Best Practices Recommendations - Today is April 14 and this is episode 27 of Get You Tech On, our show on All Things DOCSIS. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. With us is the a man who is world famous for carrying two 10ks up an Ecuadorian mountain side, John Downey, CMTS Technical Leader at Cisco Systems, welcome John thanks for coming back again. Today’s episode is a good one. This is

2 03, 2017

DOCSIS 3.1 – CCAP and Cable Modems the New Rock Stars in Test

Mia Colabrese2021-11-24T09:38:45-05:00March 2nd, 2017|

DOCSIS 3.1 - BOOM - Drop the Mic. CCAP and Cable Modems the New Rock Stars in Test We have always known that DOCSIS rocks but it is just so much cooler than we all thought. In the Winter edition of Broadband Library, I talked about how DOCSIS® 3.1 were beating expectations and performing exceptionally well in production environments. In this article, I want to focus on how the DOCSIS 3.1 specification outlines the test side, which enables operators to maintain deployed systems. Yes, you read that right,

1 02, 2017

DOCSIS CMTS Suggestions, Best Practices and Recommendations

Mia Colabrese2021-08-16T17:18:15-04:00February 1st, 2017|

DOCSIS CMTS Suggestions, Best Practices and Recommendations Episode 25 Today is Friday January 27th and this is episode 25 of Get You Tech On - the cable industry’s #1 DOCSIS podcast. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. With us is the a man who is world famous in certain parts of the country, John Downey, CMTS Technical Leader at Cisco Systems, welcome John thanks for coming back again. Today’s episode is a good one. I’ve accumulated a backlog of questions on DOCSIS CMTS optimization we