It’s a just a coupling – a splice. There are many reasons it may have been installed, but the most likely is to relocate the TV that was originally in that location. You can close it up inside the box without any issue. If by “close it up” you mean put the cover plate back on it, then by all means yes.

Why do I have two coaxial cables?

Dual runs give you wired options for networking over cable. For example, if you have a box at your primary TV that can output a copy of it’s signal on a “cable out” jack, it means you could route that same signal to any other location in that new home.

What is the purpose of coax shield?





Shield purpose



The first is to keep the desired electrical currents inside, and the second is to keep the undesired currents outside. In radio astronomy, the desired currents are from celestial radio waves coupled by the radio telescope antenna into the coaxial cable transmission line.

How do you install a coax faceplate?

Quote from the video:
Quote from Youtube video: Place the coax into the cable stripper. And add a small amount of pressure while spinning the cable stripper. After a few spins remove the cable. Now remove the silver metallic shield.

What is a coaxial sheath?

A sheath current is a form of charge transfer in wires. Sheath currents can run along the outer sheath of a coaxial cable. This can be caused by a geographically proximate or remote ground potential. Sheath currents may lower the efficiency of transmission and can interfere with nearby electronic devices.

What is the purpose of dual coaxial wall plate?

This wall plate provides two wall-mounted connections for “F” type coax cables. It is ideal for use behind your home theater system to connect your TV and satellite/cable box, where usually only one connection is provided. It also saves space by eliminating the need for extra devices to allow for a second connection.

Are all coax outlets connected?





In most houses all the coax cable is either connected by splinters that run room to room or there is some central place the coax runs to. The coax cables may or may not be connected together in that central location.

What does a coaxial cable look like?

What does a Coaxial Cable look like? Coaxial cable has a distinct thick, round shape because of its interior insulation layer. Its size makes it look very different to other types of cable, such as twisted pair or Ethernet cable.

How do you identify coaxial cable?

Coaxial cables generally use the label “RG,” which stands for “Radio Guide” and is accompanied by numbers to create a code that distinguishes the cable model. Once you find the designation code, you will quickly identify the type of coaxial cable!

Do you need coax cable for internet?

Q: Do you need a coax cable for internet? If you have cable internet, then yes, you do need a coax (or coaxial) cable to connect to the internet. Your internet provider should give you one with your modem, but if you’re missing one, you can find them for pretty cheap on Amazon.

Where is coaxial cable found?



Coaxial cable is commonly used by cable operators, telephone companies, and internet providers around the world to convey data, video, and voice communications to customers. It has also been used extensively within homes.

Is coaxial cable obsolete?

Toss: Coaxial



This is an age-old cable that is still widely used, especially for cable and Internet. Don’t expect that to last forever, though. Fiber is the biggest threat to the traditional copper cable.

Is coaxial cable expensive?

Applications of coaxial cable are in internet connections, television signal distribution, and radio transmissions, etc. Applications of twisted pair cable are in telephone networks and cable shielding. 7. Cost of coaxial cable is comparatively expensive.

Is coaxial immune to EMI?



Explanation. The correct answer is coaxial cable. It has a consisting of braided wires, metal foil, or a combination of both. Because of this shield, coax is highly resistant to electromagnetic interference (EMI).

What are the disadvantages of coaxial cable?

Drawbacks or disadvantages of Coaxial Cable



It is expensive to install for longer distances because of its thickness and stiffness. It needs to be grounded to limit interference. The safety is an important concern as it is easy to tap the coaxial cable by breaking it and inserting T-joint in between.

Which is faster coax or Ethernet?

Re: COAX VS ETHERNET



The LAN Ethernet connections support 10/100/1000 Mbps. The 802.11ac wireless connection supports up to 1300 Mbps and the 802.11n supports up to 450 Mbps, depending on signal quality. The Coax (MoCA 2.0) connection supports 700 Mbps.

Can Ethernet run over coax?

Ethernet over coaxial (MoCA) is a network technology that uses your existing coaxial TV wiring in your home to create an extremely fast and reliable network backbone for internet and home networking connections. Other things you need to know about MoCA networks are: Coax wiring is likely already installed in your home.

Can I run Internet over coax?



You can convert your coaxial cable TV wiring in your home to an Ethernet network backbone, making your Internet and WiFi connection faster and more reliable. Coaxial cable is present in 90% of homes in the US. It’s the type of wiring that delivers cable TV, Internet and other services.

How reliable is Ethernet over Coax?

MoCA vs. Alternatives

Ethernet Cable & Alternatives Setup Complexity Reliability
Ethernet Cable – Ethernet over Twisted Pair (e.g., Cat 6a) Excellent Excellent
Powerline – Ethernet over Powerline Excellent Poor
MoCA – Ethernet over Coax Good Good
Wi-Fi – Wireless Good Fair


Does coax cable affect internet speed?

So, the long answer made short is that no, coaxial cable does not slow down your Internet. It can be leveraged to vastly improve your Internet. You can enhance your Wi-Fi connection in every corner of your home with HT-EM4 MoCA adapters.

Can I plug my router into any coax?



Once you have found a valid working coax wire or outlet, you can connect your cable modem or router.