When two or more devices are connected to a common ground through different paths, ground path noise or a ground loop can occur. This is actually quite common in home theater systems, even those that are well designed. The result of a ground loop is audio hum and/or horizontal bars in the TV picture. Disconnecting coaxial connections between components eliminates the hum or interference. If "beefing up" conventional ground connections and establishing solid ground points in your cable system does not resolve these problems, then a CableTVamps Ground Isolator is the most reliable way to fix it.
Helps eliminate audio hum and horizontal scrolling bars caused by ground loops.
Low insertion loss - transparent to all cable TV signals and services, from 100Hz up to 860MHz.
Eliminates loops by isolating the ground connection between components so that currents cannot pass.
Should be used to supplement a well grounded system A/V Home Theater, when grounding issues persist.
This review is from: VSIS-EU Cable TV Ground Loop Isolator (Electronics)
I have had horizontal lines going up my screen for years. Bands of color that are worse on some channels than others, and different dpending on what plug my cable box was plugged in. I have a pretty good "Pure AV" power cleaner and protector, but that didn't help at all. I thought it might be a ground loop feedback problem, but wasn't sure what would solve the problem. This did the trick! I just plugged it in, and no lines! Nice to see pure black images without the interference. Finally. Again, I wish I would have gotten one of these years ago. FYI, I'm using this with HD channels and no problem. I was a little concerned the cheaper ones might cause a problem with the bandwith and HD. This one works perfectly and no problems.
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This review is from: VSIS-EU Cable TV Ground Loop Isolator (Electronics)
Had a hum on my cable box that really annoyed me, after getting no help from my cable company, I picked this up. The hum is completely gone and I have no distortion in my picture.
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