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Sephiroth · 06-09-2011, 14:54

It wasn't so much the -3 to +7 I was recommending to you. It was the 100 metre calculation of signla loss depending on the tap point you're on. You'd have to go to the cable type (e.g. RG11) web sites to get the attenuation calculation per metre at 400MHz.

Personally I have no doubt that -7 dBmv would be somewhat problematic.

BTW, Masque of VM has posted -3 to +7 in this forum as the optimal 256QAM downstream power levels.

06-09-2011, 14:54	#22
Sephiroth Wisdom & truth Join Date: Jul 2009 Location: RG41 Services: RG41: 1Gig VOLT Rutland: Gigaclear 400/400 Posts: 12,845	Re: Signal Levels It wasn't so much the -3 to +7 I was recommending to you. It was the 100 metre calculation of signla loss depending on the tap point you're on. You'd have to go to the cable type (e.g. RG11) web sites to get the attenuation calculation per metre at 400MHz. Personally I have no doubt that -7 dBmv would be somewhat problematic. BTW, Masque of VM has posted -3 to +7 in this forum as the optimal 256QAM downstream power levels. __________________ *Seph.* My advice is at your risk.