Cable Forum - View Single Post - What causes a bad SNR/How to fix a bad SNR?

Kymmy · 01-08-2008, 10:38

SNR (Signal to Noise Ratio) is caused by one of three things..

Too low a signal (power needs jacking up at the box int he road)
Interference (again power needs raising to get over it)
Too high a power causing distortion and noise (The power needs to be lowered at the box unless it's already at low power, this is where the attenuator comes into play but it's hard to get right)

WhydoIneedatech is perfectly right in saying that a tech should be prought in to adjust it as it's ever so easy to think you've cured it only for a slight fluctuation to suddently make it worse. A tech who does his job correctly should get your levels mid-range so variance wither way will NOT effect the signal.

01-08-2008, 10:38	#3
Kymmy Inactive Join Date: Dec 2007 Posts: 18,385	Re: What causes a bad SNR/How to fix a bad SNR? SNR (Signal to Noise Ratio) is caused by one of three things.. Too low a signal (power needs jacking up at the box int he road) Interference (again power needs raising to get over it) Too high a power causing distortion and noise (The power needs to be lowered at the box unless it's already at low power, this is where the attenuator comes into play but it's hard to get right) WhydoIneedatech is perfectly right in saying that a tech should be prought in to adjust it as it's ever so easy to think you've cured it only for a slight fluctuation to suddently make it worse. A tech who does his job correctly should get your levels mid-range so variance wither way will NOT effect the signal.