https://community.bt.com/t5/Archive-Staging/Smart-Hub-Statistics-Noise-Margin/m-p/2088335#M1205072 <P>Please excuse my ignorance but is the first figure the upstream noise margin and the second figure the downstream noise margin? For example, 6.3dB / 5.9 dB. Am I correct in assuming these 2 figures should be roughly equal and the higher the better?</P> Thu, 27 Aug 2020 15:00:08 GMT speechless 2020-08-27T15:00:08Z https://community.bt.com/t5/Archive-Staging/Smart-Hub-Statistics-Noise-Margin/m-p/2088335#M1205072 <P>Please excuse my ignorance but is the first figure the upstream noise margin and the second figure the downstream noise margin? For example, 6.3dB / 5.9 dB. Am I correct in assuming these 2 figures should be roughly equal and the higher the better?</P> Thu, 27 Aug 2020 15:00:08 GMT https://community.bt.com/t5/Archive-Staging/Smart-Hub-Statistics-Noise-Margin/m-p/2088335#M1205072 speechless 2020-08-27T15:00:08Z https://community.bt.com/t5/Archive-Staging/Smart-Hub-Statistics-Noise-Margin/m-p/2088341#M1205073 <P>Yes to your first question and no to your second.</P> <P>The upstream target noise margin is 6dB. The downstream used to be 6dB as well but Openreach have now implemented a target of 3dB to give slightly higher speeds. Not all lines will cope with 3dB and DLM might decide that 6dB will give you a more stable line at a slightly reduced speed.</P> Thu, 27 Aug 2020 15:04:39 GMT https://community.bt.com/t5/Archive-Staging/Smart-Hub-Statistics-Noise-Margin/m-p/2088341#M1205073 licquorice 2020-08-27T15:04:39Z