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Sephiroth · 22-01-2015, 16:15

The VM Forum Team usually send an engineer in when it's down at the 33 dBmv mark, which they did. Above 34.5 they'll say it's within tolerance especially if you have no post-RS errors.

Post-RS errors must not happen (except during the first part of modem reset when there is no Sync). VM may respond that 1% is tolerable, but that shouldn't be accepted and must be pushed back.

If VM wanted to move to 1024QAM for higher speeds then 34 would be no good. So they don't want low SNR.

22-01-2015, 16:15	#18
Sephiroth Wisdom & truth Join Date: Jul 2009 Location: RG41 Services: RG41: 1Gig VOLT Rutland: Gigaclear 400/400 Posts: 12,660	Re: Post RS Errors The VM Forum Team usually send an engineer in when it's down at the 33 dBmv mark, which they did. Above 34.5 they'll say it's within tolerance especially if you have no post-RS errors. Post-RS errors must not happen (except during the first part of modem reset when there is no Sync). VM may respond that 1% is tolerable, but that shouldn't be accepted and must be pushed back. If VM wanted to move to 1024QAM for higher speeds then 34 would be no good. So they don't want low SNR. __________________ *Seph.* My advice is at your risk.