How to fix a coaxial cable

How to fix a coaxial cable?

When it comes to the world of television and internet connectivity, the humble coaxial cable plays a pivotal role. But what happens when this essential component encounters a problem? How do you fix a coaxial cable? This comprehensive guide will walk you through the process, providing easy-to-understand steps and real-life examples to help you navigate this task with confidence.

Understanding Your Coaxial Cable

Before we dive into the repair process, it’s important to understand what we’re dealing with. Coaxial cables come in two common types: RG59 and RG6. Identifying your cable type is the first step in the repair process. So, take a moment to examine your cable and determine its type. This information is usually printed along the length of the cable.

Preparing for the Repair

Once you’ve identified your cable type, it’s time to gather the necessary tools. You’ll need a cable cutter to cut the damaged section of the cable, a coaxial cable stripper to prepare the ends for the new connector, and an F type connector, which is the most common type of coaxial cable connector. You may also need a wire stripping tool or a razor to cut through the rubber insulation of the cable.

Cutting the Cable

The first step in the repair process is to cut your cable. Using your cable cutter, cut out the damaged section of the cable. Be sure to leave enough length on both sides of the cut to allow for easy installation of the new connector.

Stripping the Cable

Next, you’ll need to strip each end of the cable. Using your RG-6 coaxial cable stripper, carefully remove about 1/2 inch (1.3 cm) of the outer insulation from each end of the cable. Be careful not to cut into the inner wires.

Preparing the Wires

With the insulation removed, you’ll see a bundle of internal wires. Using your fingers, gently fan these wires out. This will make it easier to install the new connector.

Installing the New Connector

Now it’s time to install the new connector. If you’re using an F type connector, simply twist it onto the prepared end of the cable. Make sure to twist it all the way on until the wire inside comes out just a bit.

Finalizing the Repair

With the new connector installed, your coaxial cable should be ready to use. Simply screw the connector into your TV or other device, and you’re good to go. If you’ve followed all these steps and still notice a loss of signal strength, it may be necessary to replace the entire cable.

Why Would a Coax Cable Stop Working?

There are several reasons why a coaxial cable might stop working. Physical damage is one of the most common causes, but issues like corrosion, poor installation, and even rodent damage can also lead to problems. Regularly inspecting your cables and connectors can help prevent these issues.

Can You Splice Coaxial Cable Without Connectors?

While it’s technically possible to splice a coaxial cable without connectors, it’s not recommended. Using connectors ensures a secure connection and helps maintain signal quality.

How Do I Get My Coax Cable to Work?

If your coaxial cable isn’t working, the first step is to check for visible damage. If you find any, follow the repair steps outlined above. If there’s no visible damage, the issue may be with your connectors or with the device you’re trying to connect to. In these cases, replacing the connectors or troubleshooting the device may resolve the issue.

Common Coaxial Cable Issues and Their Fixes

Coaxial cables, like any other piece of technology, can encounter a variety of issues. Understanding these problems and their solutions can help you keep your cable in top shape.

Damaged Connectors

One of the most common issues with coaxial cables is damaged connectors. These are the parts of the cable that screw into your devices. If a connector is damaged, it can cause a loss of signal strength or even prevent the cable from working altogether. The solution? Replace the damaged connector. Simply cut off the old connector, strip back the insulation, and twist on a new one. It’s a simple fix that can save you the cost of a new cable.

Cable Cuts

Cuts in the cable itself can also cause problems. If your cable is cut, the signal can’t travel through it properly. This can result in a weak signal or no signal at all. To fix a cut cable, you’ll need to remove the damaged section and install a new connector, as described in the steps above.


Corrosion is another common issue with coaxial cables. This typically occurs when the cable is exposed to moisture over a long period of time. Corrosion can damage the internal wires of the cable, leading to a loss of signal. If you notice corrosion on your cable, it’s best to replace it. While it’s possible to clean the corrosion, this is usually a temporary fix and the issue is likely to recur.

Maintaining Your Coaxial Cable

Proper maintenance can go a long way in preventing issues with your coaxial cable. Here are some tips to keep your cable in good condition:

  • Regular Inspection: Regularly inspect your cable for signs of damage. Look for cuts, frayed wires, and signs of corrosion. Catching these issues early can prevent more serious problems down the line.
  • Proper Installation: Make sure your cable is properly installed. Avoid bending the cable sharply, as this can damage the internal wires. Also, make sure the connectors are securely screwed into your devices.
  • Avoid Moisture: Try to keep your cable dry. Moisture can lead to corrosion, which can damage your cable. If your cable is installed outdoors, consider using a weatherproofing sealant to protect it.


Fixing a coaxial cable doesn’t have to be a daunting task. With the right tools and a bit of patience, you can repair common issues and keep your cable in good working order. Whether you’re dealing with a damaged connector, a cut cable, or a corroded wire, these simple steps can help you get your cable back in shape and your signal back on track.

Remember, the key to a well-functioning coaxial cable is regular inspection and maintenance. By taking care of your cable, you can ensure a strong, consistent signal for your TV or internet connection. So, next time you encounter a problem with your coaxial cable, don’t panic. Just grab your tools, follow these steps, and get your cable back in action.

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