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Old 03-21-2011, 10:27 PM   #1
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Low volt question (RG-6 cable & shorts)


I was at the hardware store looking for a pocket toner to figure out this mess of dish network cables running everywhere in the new house so I can hook my TV and modem to one of them inside the house, and tell the cable guy which one to connect to the box outside of the house.

This guy from the phone company tells me I should just 'short' the end using a barrel connector and then use a regular multi-meter on the other end to find it.

How do I go about accomplishing shorting an RG-6 cable?

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Old 03-21-2011, 10:37 PM   #2
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Low volt question (RG-6 cable & shorts)


I would simply cut off the connector, strip it, connect the inner conductor to the shielding, then test for continuity. Place new connector on the end when finished.

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Old 03-21-2011, 11:03 PM   #3
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Low volt question (RG-6 cable & shorts)


Here is a neat Tester from Amazon.com
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Old 03-22-2011, 12:56 AM   #4
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Low volt question (RG-6 cable & shorts)


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Originally Posted by Alan View Post

How do I go about accomplishing shorting an RG-6 cable?
with one of these:

http://www.amazon.com/Type-75-Ohm-Te...bxgy_hi_text_c

. You will have to also get a female to female coupling (external threads on both ends). Screw into the F connector on the cable and screw the terminator on the other end of the coupling.
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Old 03-22-2011, 01:11 AM   #5
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Low volt question (RG-6 cable & shorts)


  • make a jumper from a short piece of wire and two alligator clips - clip to center conductor and shield at one end to short, check with ohm meter or continuety tester at other end
  • buy jumper as above from Radio Shack or elsewhere
  • use a barrel connector, wrap or solder a wire to short one end
  • use a couple paper clips as jumper...
lots of quick and inexpensive ways to short one end of the cable...
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Old 03-22-2011, 04:43 AM   #6
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Low volt question (RG-6 cable & shorts)


If it already has an F connector on it, you can usually bend the inner conductor against the connector shell, sticking the tip against the threads to make it stay.
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Old 03-22-2011, 06:30 AM   #7
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Low volt question (RG-6 cable & shorts)


Here is the Coax Coupler

Amazon says they have 8 in stock. Let's see that should come to 8
And that's for what Amazon calls the Premium model.
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Last edited by PaliBob; 03-22-2011 at 06:33 AM.
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Old 03-22-2011, 10:50 PM   #8
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Low volt question (RG-6 cable & shorts)


Quote:
Originally Posted by nap View Post
with one of these:

http://www.amazon.com/Type-75-Ohm-Te...bxgy_hi_text_c

. You will have to also get a female to female coupling (external threads on both ends). Screw into the F connector on the cable and screw the terminator on the other end of the coupling.
I didn't know that would short it. Good call. Cheap radio shack device.

Thanks
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Old 03-22-2011, 11:02 PM   #9
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Low volt question (RG-6 cable & shorts)


Quote:
Originally Posted by Alan View Post
I didn't know that would short it. Good call. Cheap radio shack device.

Thanks
that's a termination resistor. It should allow a read through of the characteristic impedance which is 75 ohm for rg6
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Old 03-23-2011, 10:19 PM   #10
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Low volt question (RG-6 cable & shorts)


Quote:
Originally Posted by nap View Post
that's a termination resistor. It should allow a read through of the characteristic impedance which is 75 ohm for rg6
so when I check the other end I should place the test leads 1 on the center conductor and one on the outside of the fitting and I should read 75 ohms, right?
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Old 03-23-2011, 10:21 PM   #11
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Low volt question (RG-6 cable & shorts)


Quote:
Originally Posted by Alan

so when I check the other end I should place the test leads 1 on the center conductor and one on the outside of the fitting and I should read 75 ohms, right?
Or check for continuity. Uses a tone (beep) on a digital meter.

What kind of meter do you have?
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Old 03-23-2011, 11:56 PM   #12
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Low volt question (RG-6 cable & shorts)


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Or check for continuity. Uses a tone (beep) on a digital meter.

What kind of meter do you have?
I've got a craftsman digital, and it has both functions, so I should be o.k. either way.

Thanks all.


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