Full Band Capture Archives

17 08, 2022

Understanding Cable Network RF Return Path Signal Levels and Balancing

Mia Colabrese2022-08-17T12:43:19-04:00August 17th, 2022|

Brady Volpe and John Downey discuss the theory of operation of return path signal levels in the return path. Why does the transmit power increase, rather than decrease like the downstream? How do two way splitters impact upstream and downstream signal levels? Why is the return always higher than the value the of tap +20? And more examples and discussion on the impact of RF in the cable network and troubleshooting. Here is a link to the SCTE Document: https://www.scte.org/standards/library/catalog/scte-280-understanding-and-troubleshooting-cable-rf-spectrum/ 0:00 Intro 1:00 Understanding FBC doc

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.

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

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

8 10, 2020

Rocking PNM

Mia Colabrese2023-01-14T17:10:23-05:00October 8th, 2020|

Hi everyone, we are going to give an update on rocking Proactive Network Maintenance (PNM) and full band capture (FBC). New and exciting features in PNM that every cable operator needs. This is episode 64 of Get Your Tech On, our show on All Things DOCSIS. I'm Brady Volpe, Founder of The Volpe Firm and Nimble This. With us today is John Downey, CMTS Technical Leader at Cisco Systems, welcome back John. Join us with special guest Larry Wolcott, PNM pioneer and guru, while we discuss some

26 01, 2015

Full Band Capture a Spectrum Analyzer in DOCSIS Cable Modem Episode 9

Mia Colabrese2021-08-17T09:11:29-04:00January 26th, 2015|

DOCSIS 3.0 Full Band Capture and So Much More Episode 9 Hosted by Brady Volpe of the Volpe Firm and Nimble This with guest John Downey of Cisco. Brady and John cover the benefits of the latest technology available (full band capture) in DOCSIS 3.0 cable modems such as: Full band capture offering spectrum analyzer functionality in every subscriber home with DOCSIS 3.0 modem Extended transmit power allowing cable modems higher transmit power when in bonded modem with the new CableLabs ECR Built-in FTP transfer allowing local speedtest functionality PNM