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#1
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Ground loop hum?
I built my house about four years ago and until yesterday everything was
fine. However, a couple of days ago I started experiencing trouble with my road runner connection so yesterday a technician came out. He found the signal strength was too low, and he replaced the cable from their box to the small box on the side of my house. He also replaced the splitters in the attic as I got digital cable installed a couple of months ago and the splitters didn't cover the full freq range used by the digital channels. Said he was surprised it was working. Anyhow, he gets my RR restored and the picture on my TV's look better than ever. But, when I went to watch a movie last night I got the all too familiar ground loop hum. I disconnected the cable input immediately and the hum disappeared. I'm on my way to the store today to get a 3-prong to 2-prong adapter, but I was wondering what he might have done to cause this problem? Also, shouldn't they be responsible to fix it? I called them this morning and told them of the situation and was promptly told that many people experience this and there is nothing they can do? Any advise/suggestions? BTW, I looked outside where they have their box on the side of my house and the only ground I saw was a wire going from the box to conduit of my main a/c feed from the breaker box? Is this normal? Also, is there supposed to be some kind of ground at the other end as well. There big ugly green box that feeds several houses is also in my back yard. Thanks |
#2
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Ground loop hum?
http://www.jensen-transformers.com/
The VRD-1FF is what you need. The ground they provide give lighting or other dangerously high current a place to go besides through the cable line but when I complain about noise, they always said it's normal and won't deal with it. Jon BTW, I looked outside where they have their box on the side of my house and the only ground I saw was a wire going from the box to conduit of my main a/c feed from the breaker box? Is this normal? http://www.jonlayephotography.com |
#4
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Ground loop hum?
"Jack Dotson" wrote in message
. net... I built my house about four years ago and until yesterday everything was fine. However, a couple of days ago I started experiencing trouble with my road runner connection so yesterday a technician came out. He found the signal strength was too low, and he replaced the cable from their box to the small box on the side of my house. He also replaced the splitters in the attic as I got digital cable installed a couple of months ago and the splitters didn't cover the full freq range used by the digital channels. Said he was surprised it was working. Anyhow, he gets my RR restored and the picture on my TV's look better than ever. But, when I went to watch a movie last night I got the all too familiar ground loop hum. I disconnected the cable input immediately and the hum disappeared. I'm on my way to the store today to get a 3-prong to 2-prong adapter, but I was wondering what he might have done to cause this problem? Also, shouldn't they be responsible to fix it? I called them this morning and told them of the situation and was promptly told that many people experience this and there is nothing they can do? Any advise/suggestions? BTW, I looked outside where they have their box on the side of my house and the only ground I saw was a wire going from the box to conduit of my main a/c feed from the breaker box? Is this normal? Also, is there supposed to be some kind of ground at the other end as well. There big ugly green box that feeds several houses is also in my back yard. Thanks I had the same problem. I purchased a coax grounding block from radio shack. I wired the ground connector on the block to the ground input on SAME WALL OUTLET powering the audio equipment. This eliminates any voltage difference between the coax ground and the audio equipment ground. This completely solved the problem for me. |
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