OFDM Archives

27 03, 2024

DOCSIS 3.1 understanding capacity calculator

Mia Colabrese2024-03-27T09:05:53-04:00March 27th, 2024|

Embark on an enlightening journey with our latest episode of Get Your Tech On! Hosted by Brady Volpe, Founder of VolpeFirm and Chief Product Officer at OpenVault, and featuring John Downey, DOCSIS Industry Technical Expert, this livestream is a treasure trove for cable and telecom enthusiasts. In this captivating episode, we unravel the complexities of DOCSIS 3.1 capacity issues and explore the best strategies to comprehend and maximize them: Topic Highlights: Estimating OFDM Capacity in DOCSIS 3.1 / 4.0: Discover the intricacies of estimating data capacity on an

26 02, 2024

OFDM Capacity in DOCSIS 3.1 and 4.0

Mia Colabrese2024-02-28T12:54:24-05:00February 26th, 2024|

Estimating OFDM Capacity in DOCSIS 3.1 / 4.0 A Simplified Approach I am often asked how one estimates the data capacity on a OFDM (orthogonal frequency division multiplexing) channel in DOCSIS 3.1 networks. The question is easy, the answer is not. In this article I provide the background behind estimating OFDM data channel capacity, at least what I can do within the confines of a three-page article. I’ll also provide some practical calculations and a link to a Python script which will do the work for you. Please

12 02, 2024

DOCSIS 3.1 Deep Dive: OFDM vs. SC-QAM, Upstream Bonding, and Troubleshooting Tips

Mia Colabrese2024-03-27T08:41:29-04:00February 12th, 2024|

Join us in this insightful episode of Get Your Tech On, where we delve deep into the intricacies of DOCSIS 3.1. Hosted by Brady Volpe, founder of VolpeFirm and Chief Product Officer at OpenVault, and featuring John Downey, Industry Technical Expert on DOCSIS, this livestream is a must-watch for anyone in the cable and telecommunications industry. In today's episode, we tackle some of the most pressing questions about DOCSIS 3.1: OFDM vs. SC-QAM Performance and Deployment: We start by exploring the key differences between OFDM and SC-QAM channels

20 11, 2023

DOCSIS 4 or stay with Docsis 3.1?

Mia Colabrese2023-11-29T15:01:09-05:00November 20th, 2023|

Step right into the electrifying next episode of "Get Your Tech On"! Get ready for a turbocharged livestream where we're diving headfirst into the magical world of DOCSIS 4.0 wizardry and the latest updates. Our fearless host, Brady Volpe, the tech maestro behind The Volpe Firm and now also Chief Product Sorcerer at OpenVault, is teaming up with the one and only John "Cable Cruncher" Downey, CMTS Jedi Master at Cisco Systems. Together, they're on a mission to unlock mind-bending strategies for conquering challenges that make others tremble.

8 08, 2023

Managing DOCSIS 3.1 Channel Bonding: Ensuring Optimal Performance

Mia Colabrese2023-08-08T16:50:41-04:00August 8th, 2023|

Welcome to another thrilling episode of "Get Your Tech On"! In this highly informative livestream, we delve into the realm of managing DOCSIS 3.1 channel bonding to ensure optimal performance in your HFC network. Join host Brady Volpe, founder of The Volpe Firm and Chief Product Officer of OpenVault, as he teams up with the brilliant John Downey, CMTS Technical Leader at Cisco Systems, to explore ingenious strategies for overcoming challenges with modems not bonding to OFDM / OFDMA channels and offloading traffic from SC-QAM channels. Discover the

5 07, 2023

SNR (RxMER) and DOCSIS 3.1 Modems

Mia Colabrese2023-07-05T16:32:25-04:00July 5th, 2023|

Welcome to another engaging episode of Get Your Tech On, titled "Your Questions, Our Answers: SNR (RxMER) and DOCSIS 3.1 Modems." In this episode, we delve into listener queries about DOCSIS technology, focusing on Signal-to-Noise Ratio (SNR), RxMER, and the details of DOCSIS 3.1 modems. Our host, Brady Volpe, founder of NimbleThis and The Volpe Firm, is joined by the highly knowledgeable John Downey, CMTS Technical Leader at Cisco Systems. Together, they explore the intricacies of these complex topics, helping to shed light on the common RF issues

24 11, 2020

OFDM and OFDMA

Mia Colabrese2020-11-25T08:36:22-05:00November 24th, 2020|

OFDM and OFDMA The value added and what it means to my network By now you have heard or have been exposed to orthogonal frequency division multiplexing (OFDM). It was the innovative technology introduced in Data-Over-Cable Service Interface Specifications (DOCSIS) 3.1 to increase the efficiency by which DOCSIS networks can transmit data in the downstream. Additionally, many cable operators are now actively deploying orthogonal frequency division multiple access (OFDMA), which was also introduced in the DOCSIS 3.1 specification in order to increase upstream bandwidth efficiency. So just what

1 07, 2020

DOCSIS 3.1 and WiFi 6 – How fast can you go?

Mia Colabrese2021-08-17T15:49:50-04:00July 1st, 2020|

This is episode 61 of Get Your Tech On, our show on All Things DOCSIS. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. We have two guests with us today, John Downey, CMTS Technical Leader at Cisco Systems, welcome John. If you like what you are watching please do hit the subscribe button and if you want to be notified of future events just click on the bell so you receive email notifications each time we go live or upload videos. DOCSIS Speeds Source

13 02, 2020

Misunderstood RF Measurements

Mia Colabrese2021-08-17T10:50:22-04:00February 13th, 2020|

Hello Everyone. This is episode 55 of Get Your Tech On, our show on All Things DOCSIS. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. John Downey is with me and also CMTS Technical Leader at Cisco Systems, and Ron Hranac also of Cisco Systems, welcome John and Ron. Today we are going to discuss Top Commonly Misunderstood RF Measurements. An overall discussion on confusing topics and commonly misunderstood RF measurements in cable. Over 100 years of RF knowledge. Topics Covered: Fun Math problem

27 07, 2016

DOCSIS 3.1 In Your Plant Now

Mia Colabrese2016-07-27T11:00:12-04:00July 27th, 2016|

DOCSIS 3.1 In Your Plant Now In last month's article we focused on demystifying OFDM in DOCSIS 3.1. If you did not read the article please do, because we are going to now build on what we learned last time in the Broadband Library DOCSIS Online article titled “OFDM, completely new in DOCSIS 3.1”. You can find it in the archives with this link: bit.ly/OFDM3 - Also, for those not familair with bit.ly, its just a URL shortening service. Just click on the link or type it into