Kitz ADSL Broadband Information
adsl spacer  
Support this site
Home Broadband ISPs Tech Routers Wiki Forum
   Compare ISP   Rate your ISP
   Glossary   Glossary
Please login or register.

Login with username, password and session length
Advanced search  


Author Topic: NGA018/19 Power Spectral Density Reshaping  (Read 914 times)


  • Kitizen
  • ****
  • Posts: 2066
NGA018/19 Power Spectral Density Reshaping
« on: July 11, 2019, 06:14:36 PM »

This briefing is to inform all CPs that Openreach are starting to deploy power spectral density reshaping.

We've published a briefing for CPs informing them that Openreach is starting to deploy Power Spectrum Density (PSD) reshaping following the update to the Access Network Frequency Plan (ANFP) to align this with the International Telecommunication Union's Telecommunication Standardization Sector (ITU-T).

I think the changes in the FTTC downstream PSD graphs between ANFP v6.1.1 and v7.1.2 are to allow for FTTC to use higher power within a part of the ADSL downstream range, at cabinets located a very long distance from the exchange. v7.1.2 allows for a cabinet far enough away from its exchange that it doesn't need any PSD shaping.


  • Global Moderator
  • Senior Kitizen
  • *
  • Posts: 31525
  • Over the Rainbow Bridge
    • The ELRepo Project
Re: NGA018/19 Power Spectral Density Reshaping
« Reply #1 on: July 11, 2019, 11:35:58 PM »

Thank you for posting that synopsis and your thoughts / analysis thereupon.
:cat:  100% Linux and, previously, Unix. Co-founder of the ELRepo Project.

Please consider making a donation to support the running of this site.