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Old 09-24-2013, 03:22 PM   #1
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Testing exposed external coax for signal


My question:
Is there is a way to test an exposed external coax for signal without an rf current clamp? By exposed, I just mean not buried - the cable itself is not damaged.

Here's why:
I moved into a house about 2 years ago that was used, abused, neglected, and trashed by its previous owner. The electrical wiring is good (thanks to a kitchen reno and AWESOME electrician who fixed several serious issues in addition to what he was contracted for), but the coax is an absolute mess. There are multiple lines running from the house to the cable box, but only ONE of them is live and all are buried. There are at least two dead cable connections (whether jacks or cables coming out of the wall) in every room in the house. The coax feeding them has been chewed through by mice or inexplicably cut, and the previous owner ran new coax to either a new box and jack or through a new hole in the wall (but took the time to use clamps to secure it to the studs in the wall ). The exterior line that I am curious about may feed the entire bottom level and I don't want to cut it if it does. It comes out of the ground near the foundation (<1" between wall and cable) and enters the house through the exterior siding and wall just above the sill plate. I'm not sure where it is (or was) connected to on the interior side of the wall. The room on the other side of the wall has four dead jacks and two live ones, none of them on the wall the exterior cable goes into.

Any suggestions for a way to test that line for signal is much appreciated. (And just cutting it and seeing what happens has already been suggested by my wife).

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Old 09-24-2013, 04:14 PM   #2
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Testing exposed external coax for signal


Quote:
Originally Posted by SrsBidness28 View Post
My question:
Is there is a way to test an exposed external coax for signal without an rf current clamp? By exposed, I just mean not buried - the cable itself is not damaged.

Here's why:
I moved into a house about 2 years ago that was used, abused, neglected, and trashed by its previous owner. The electrical wiring is good (thanks to a kitchen reno and AWESOME electrician who fixed several serious issues in addition to what he was contracted for), but the coax is an absolute mess. There are multiple lines running from the house to the cable box, but only ONE of them is live and all are buried. There are at least two dead cable connections (whether jacks or cables coming out of the wall) in every room in the house. The coax feeding them has been chewed through by mice or inexplicably cut, and the previous owner ran new coax to either a new box and jack or through a new hole in the wall (but took the time to use clamps to secure it to the studs in the wall ). The exterior line that I am curious about may feed the entire bottom level and I don't want to cut it if it does. It comes out of the ground near the foundation (<1" between wall and cable) and enters the house through the exterior siding and wall just above the sill plate. I'm not sure where it is (or was) connected to on the interior side of the wall. The room on the other side of the wall has four dead jacks and two live ones, none of them on the wall the exterior cable goes into.

Any suggestions for a way to test that line for signal is much appreciated. (And just cutting it and seeing what happens has already been suggested by my wife).
I use this ...LOL

http://www.flukenetworks.com/datacom...Cable-Verifier

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Old 09-24-2013, 04:40 PM   #3
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Testing exposed external coax for signal


Thanks for the quick reply and the laugh. If I had $500 to spend on a cable verifier, I would already have one.

Let me clarify: Is there something at a DIYer's level that can do the job?
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Old 09-24-2013, 04:42 PM   #4
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Testing exposed external coax for signal


hook ur tv up and then start disconnection down where ever when the TV goes off you got the right cable ...
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Old 09-24-2013, 05:02 PM   #5
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Testing exposed external coax for signal


I am not even sure if the coax on the exterior of the wall is carrying a signal - that's what I am trying to determine. I found two dead cables in the ground this summer (and not because I cut them). Both of them run right near where this cable is. I had the cable company check them when I found them, and made sure I didn't accidentally cut a neighbor's cable. One terminated on one of the previously cut lines where the current live one comes into the house (there are three cut lines). The tech couldn't find where the other one terminated, though and after telling him about the mess that the coax was inside, he just tested the ends where the live lines come in and determined it wasn't one of them. Cable company is going to charge to come out again, so I want to try to find a cheaper option.
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Old 09-24-2013, 07:07 PM   #6
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Testing exposed external coax for signal


Here, the cheapest continuity tester for Coax that you can get http://www.amazon.com/Steren-203-550...ax+tone+tester
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Old 09-24-2013, 11:25 PM   #7
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Testing exposed external coax for signal


On a DIY level, all you can do is,
phyisically follow the main feed coax,
find it's first joint and tap into it there !
you will need to position a tv near by,
hook it up, and see what,s there !

Most instalers use specialist equipment,
which can be expensive !

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