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Author Topic: Cable TV Surge Suppressor  (Read 611 times)
KJ4DIS
Member

Posts: 23




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« on: July 16, 2008, 02:05:14 PM »

Comcast is my cable TV provider. The entry point and splitters are locked up in their box on the side of the house. How can I go about adding a suppressor on the entry line?

Also, I have read that some people who have added suppressors have weaker signals or have lost HD channels. Do I need to watch out for anything in particular when choosing a suppressor?
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KB9CRY
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Posts: 4284


WWW

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« Reply #1 on: July 16, 2008, 05:31:27 PM »

Look at ICE and call them with your questions.
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K9KJM
Member

Posts: 2416




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« Reply #2 on: July 17, 2008, 03:14:04 AM »

Yes, I.C.E. Has some of the better deals on good arrestors.

http://www.iceradioproducts.com/impulse1.html#1

One can simply be added after the cable company lockbox.

HOWEVER note that your properly installed and bonded ground system is MUCH more important than any "device"

http://members.cox.net/pc-usa/station/ground3.htm
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AA4PB
Member

Posts: 12669




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« Reply #3 on: July 17, 2008, 05:07:34 AM »

The shield of the cable is "supposed" to be grounded by the cable company, probably to the block inside the locked box. I'm not sure simply adding a suppressor to the line is going to accomplish anything unless the cable installer didn't connect the ground like he was supposed to.
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K8AC
Member

Posts: 1465




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« Reply #4 on: July 18, 2008, 05:27:57 PM »

Buy one of the suppressor boxes that includes protection for the AC line, telephone line, and coaxial cable feeds.  I currently use TrippLite boxes and they come with a guarantee of protection for attached devices - many such surge protectors include that.  I had two damaging strikes prior to improving my home lightning protection and everything attached to the TrippLites survived just fine.
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N1QOQ
Member

Posts: 188




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« Reply #5 on: July 20, 2008, 10:46:30 AM »

Why would anyone think that grounding the shield of coax stop a surge on the center conductor?
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