HFC Archives

5 09, 2024

Upcoming Tech in Our 100th Episode and DOCSIS 3.1

Mia Colabrese2024-11-12T14:31:32-05:00September 5th, 2024|

Hosted by Brady Volpe, Founder of VolpeFirm and Chief Product Officer at OpenVault, and featuring John Downey, DOCSIS Sr. Industry Consultant, this livestream will focuses on cable / broadband hot topics that will be featured at SCTE Cable Expo 2024. PNM Live and Your network is talking to you - Listen! https://volpefirm.com/blog-2/ Links / Upcoming events: https://volpefirm.com/broadband-event/ Thank you for your time today. This was a great episode. Episode 101 is next You can watch us live or recorded on Youtube or listen to us on your favorite

20 06, 2024

Broadband Insights

Mia Colabrese2024-11-19T08:49:45-05:00June 20th, 2024|

Hosted by Brady Volpe, Founder of VolpeFirm and Chief Product Officer at OpenVault, and featuring John Downey, DOCSIS Sr. Industry Consultant, this livestream will focuses on cable / broadband hot topics such as: 👉 Reddit Rants and Raves: We'll dive into recent user feedback on Starlink and Google Fiber, straight from Reddit. 👉 CommScope's Big Move: What does their acquisition of Casa's vCMTS mean for the future of our networks? Link to CommScope article: https://www.lightreading.com/cable-technology/commscope-will-ride-one-vcmts-in-wake-of-casa-deal 👉 Low Latency DOCSIS: How this technology is revolutionizing real-time applications and boosting

7 05, 2024

Upgrading Your HFC Plant For The Next 5 Years

Mia Colabrese2024-11-12T14:32:59-05:00May 7th, 2024|

Upgrading Your HFC Plant For The Next 5 Years - the how, the why and the when - listen to uur 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 Sr. Industry Consultant, this livestream focuses on the technical aspects you should consider when looking to upgrade your HFC plant to last for the next five years. 85 MHz or 204 MHz or even higher? DAA? And more. We are going to

3 09, 2021

Interpreting Full Band Capture and RxMER

Mia Colabrese2021-09-03T10:44:50-04:00September 3rd, 2021|

In this episode Brady Volpe of Nimble This and The Volpe Firm, and John Downey of Cisco discuss interpreting Full Band Capture (FBC) and RxMER which is the MER of the subcarriers in the OFDM channel. Cable is a technology business and we seem to always come up with new terms and new things to understand and interpret. FBC has been around now but still not everyone knows what it means and how to understand it correctly. RxMER is a bit newer but can still be mysterious

20 08, 2021

Cisco vCMTS

Mia Colabrese2021-08-23T11:57:31-04:00August 20th, 2021|

Cisco vCMTS? Brady Volpe founder of The Volpe Firm and Nimble This, John Downey and Jason Miller Technical Marketing Engineer of Cisco discuss Cisco's virtual CMTS (vCMTS). The topic came up during ANGACOMs 2021 presentation. I didn't know Cisco even had a vCMTS, did you? Well, let's find out what they are doing and if they are really taking away the CLI as discussed at ANGACOM. The discussion is on all things DOCSIS. Tips, suggestions and recommendations. Another power hour of cable with Brady Volpe and John Downey CMTS

13 03, 2014

DOCSIS 3.1 Challenges to make DOCSIS 3.1 Operational in HFC Networks

Mia Colabrese2014-03-13T09:09:28-04:00March 13th, 2014|

DOCSIS 3.1 : Challenges to make DOCSIS 3.1 Operational in HFC Networks ANGACOM 2014 May 21, 2014 - Technology Panel 11:45am - 1:00pm - Room B Come See Brady Volpe at ANGACOM Moderator: Brady Volpe - President and CTO, The Volpe Firm Access Network Dimensioning in DOCSIS 3.1 Dr. L. Alberto Campos - Principal Architect Advanced Technology Group, Cable Television Laboratories Impact of DOCSIS 3.1 on HFC Network Design Dirk Langer - Head of Marketing Broadband Communication Systems, KATHREIN-Werke KG Ingress/Egress/LTE: The Imperative to improve the In-Home Interconnect Keith Mothersdale - Head of

24 09, 2012

DOCSIS Return | Dirty Fiber Optic Connectors

Mia Colabrese2012-09-24T03:14:16-04:00September 24th, 2012|

An often overlooked, but easy to resolve RF impairment are loose and/or dirty fiber optic connectors. This issue often manifests itself as an increased noise floor when viewed on a spectrum analyzer. The key to determining the difference between regular ingress and fiber connector noise is that the noise created by a loose or dirty fiber connector does not stop at the diplex filter roll-off frequency (typically 42 MHz in North America and 65 MHz Europe). The image below shows a perfect example of this type of impairment:

14 11, 2011

Press Release

Mia Colabrese2011-11-14T07:00:04-05:00November 14th, 2011|

Press Release The Volpe Firm offering solutions, services and products for the broadband telecommunications industry The Volpe Firm gets Seal of Approval from Clients Alpharetta, GA November 14, 2011: The Volpe Firm offers solutions, services and products for the broadband communications industry with a focus in DOCSIS, data, video, and VoIP communications. We provide everything from specialized DOCSIS 3.0 seminars and or tailored DOCSIS training to high level hardware architecture engineering design and system troubleshooting. The Volpe Firm, with 30 years of combined telecommunications experience, specializes in DOCSIS,

22 02, 2009

DOCSIS and Cable Modems – How it works :: Anatomy of a Burst

Mia Colabrese2021-08-17T22:35:57-04:00February 22nd, 2009|

DOCSIS Cable Modem Data Burst Defined Previously I have discussed that cable modems share the upstream channel by using Time Division Multiple Access (TDMA). This means that when a cable modem is not transmitting data its RF transmitter is turned off. In order to transmit data it must transmit a burst of data which contains a REQUEST to the CMTS. The REQUEST relays the cable modem's Service IDentifier and the number of bytes of information the modem has to transmit in its buffer. The CMTS prioritizes all incoming

9 02, 2009

DOCSIS and Cable Modems – How it works :: Cable Modem Registration

Mia Colabrese2021-08-17T09:54:53-04:00February 9th, 2009|

Through DOCSIS tutorial seminars, I have found the most effective way to bring someone up to speed on DOCSIS communications is by teaching the cable modem registration process. During the registration process, we will cover the RF physical layer, theDOCSIS Media Access Layer (MAC) and the Internet Protocol (IP) layer. Yes, the cable modem exercises the first three layers of the Open Systems Interconnection Reference Model (OSI Reference Model or OSI Model)...