what is rg-6 cable used for

what is rg-6 cable used for


RG6 cable is heavier gauge and has insulation and shielding tuned for high-bandwidth, high-frequency purposes reminiscent of Web, Cable TV, and Satellite tv for pc TV indicators. In case you aren’t certain which cable to get, then RG6 cable is your finest guess.

RG59 cable is thinner and is advisable in low bandwidth and decrease frequency purposes reminiscent of analog video and CCTV installations.

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Verify Out Sewell RG6 and RG59 Coax Cables

Deciding Between RG 6 and RG 59 in your Set up

You might be asking a ton of questions proper now relating to what sort of Coaxial Cable try to be buying. Do you have to get RG-59 or RG-6? Do you want Quad shielding? What about braiding? Do it’s worthwhile to get Plenum Rated cable? Or Direct Burial? There’s a seemingly infinite listing of choices and choosing the incorrect sort of coax may lead to spending much more cash than what you have been planning. On this complete article we’ll undergo just a few fundamentals of coaxial cable so you need to know what you want.

First, What’s RG?

Coaxial cables use RG scores to differentiate between the totally different sorts of cables. RG is an outdated, principally forgotten army time period that stands for “radio information.” The quantity distinguishes the totally different cable specs, however they’re randomly assigned, so don’t search for some sort of order within the numbers. Actually dozens of coaxial cables have been made over time, however the one ones that most individuals want to fret about are RG 6 cable and RG 59 cable, so these are the 2 sorts we’re going to deal with right here.

RG 6 vs RG 59 Purposes

RG 6 is advisable in your CATV, satellite tv for pc, TV antenna, or broadband web. RG 59 is usually higher for many CCTV methods and different analog video indicators. What you really want to contemplate are the frequency scores your tools makes use of. In case your tools makes use of greater frequencies (above 50 MHz), then you definately’ll wish to go together with RG 6. In case your frequencies are decrease than that, then you definately’ll wish to use RG 59.

RG 59 (In-Depth)

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RG59 cable has been round for a very long time. This cable was once what most individuals used for his or her cable TV connection and may be very generally put in in older houses and industrial buildings. Nevertheless, many fashionable sign necessities have made this cable much less in style in the previous couple of years. RG 59 has a smaller conductor than RG 6, which signifies that it may possibly’t obtain the identical sign high quality as RG 6. The best way its shielding is designed additionally signifies that it doesn’t hold Gigahertz degree indicators contained in the conductor very nicely. For this reason RG 59 most likely isn’t a good selection in your TV or web connection.

The braided shielding in RG 59 was designed round (comparatively) lengthy waveforms of megahertz interference. That makes it good for decrease frequency indicators (something beneath about 50 MHz). It’s generally used for composite or element video indicators (usually within the mini-coax selection). That additionally makes it a good selection for a closed circuit tv (CCTV) video surveillance system. You’ll be able to even make your set up simpler by getting what’s referred to as “Siamese coaxial cable.” This cable consists of a RG 59 cable merged along with a 2C energy cable. Through the use of this kind of cable, you possibly can run the ability and video in your safety cameras concurrently, successfully chopping your set up time in half.

RG 6 (In-Depth)

Satellite tv for pc and web indicators run at greater frequencies than conventional analog video, and when TV broadcasts modified from analog to digital, and cable corporations began switching to digital, the upper freuqencies made it essential to discover a more practical coaxial cable. RG6 cable was designed to meet these necessities. It has a bigger conductor, which provides you significantly better sign high quality. The dielectric insulation was made thicker as nicely. RG 6 can also be made with a special form of shielding, which permits it to extra successfully deal with Ghz degree indicators. Whereas many RG 59 cables makes use of a foil protect along with the braid, RG 6 made it necessary. The braid was initially in a looser weave (e.g. 60% versus the 90%+ of RG59) however many RG6 cables use a high-percentage braid now too.

Different Components to Think about When Shopping for

Deciding between RG 59 and RG 6 is simply a part of the method. Every class of cable can have various kinds of shielding or jacket and will or is probably not rated in your chosen set up.


RG-6 may also be discovered with the designation “RG-6/U,” however there isn’t a official designation for the U. Some say that it means “common” or “for basic utility use.” Others say that it refers to the kind of jacket the cable has, however this is not at all times the case. For all intents and functions RG-6 and RG-6/U are the identical. In case you want a sure sort of jacket, ensure that and examine the specs. However we’ll get into totally different jacket sorts afterward.


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Shielding prevents ‘noise’ from interfering together with your sign, and subsequently preserves your sign high quality. Coaxial cables normally include two kinds of shielding: braid and foil. Most coaxial cables embrace each (though some RG 59 cables nonetheless use single shielding). Normally, the extra shielding you’ve got, the higher your cable will carry out, particularly in longer runs, however there are variations in what the shields shield. Foil shielding usually includes an aluminum or mylar foil bonded to the dielectric, beneath a metallic braid. Foil may be very efficient at defending towards excessive frequency electromagnetic interference (EMF). Braided shielding is a group of many small wire strands braided across the exterior of dielectric (and/or foil). The braid is efficient towards lower-frequency interference. RG 59 cable makes use of a copper braid and RG 6 can use copper or an aluminum braid.

There are “quad shielded” cables which have an additional layer of foil and braid shielding and might supply higher safety. Nevertheless, newer coaxial cables can use a 95% braid to carry out higher with out the additional bulk and weight of quad shielded cables.

Sign Loss

Whereas shielding strategies hold exterior sign from affecting our indicators, there’s at all times some sign loss over the size of any cable. Right here’s the breakdown of sign loss (attenuation) in decibels for 100 ft. of cable. Simply bear in mind, the longer your cable runs are, the extra sign loss you’ll expertise. That’s why it’s finest to maintain your set up lengths as quick as potential.

RG 59 Sign Loss (in dB) per 100 ft

  • Loss at 50 MHz: 2.4 dB
  • Loss at 100 MHz: 3.4 dB
  • Loss at 400 MHz: 7.0 dB
  • Loss at 900 MHz: 11.1 dB
  • Loss at 1000 MHz: 12.0 dB

RG 6 Sign Loss (in dB) per 100 ft

  • Loss at 50 MHz: 1.5 dB
  • Loss at 100 MHz: 2.0 dB
  • Loss at 400 MHz: 4.3 dB
  • Loss at 900 MHz: 6.8 dB
  • Loss at 1000 MHz: 7.0 dB

Cable Jacket

Plenum Ranking

Plenum areas are the open areas above the ceiling or beneath the ground which are used for air circulation. These areas are vital for air circulation in industrial buildings, however additionally they deliver some issues when you ever have a hearth due to the excessive oxygen content material and lack of fireplace obstacles.

Utilizing untreated cables in plenum areas can unfold the fireplace to different areas in a short time and unfold noxious smoke all through the constructing. Plenum cables are coated with flame retardant and made utilizing particular plastics that don’t launch poisonous gasses or smoke almost as a lot as different plastics to assist forestall this downside. Any cable that you just run by means of plenum areas should be plenum rated.

Outside and Direct Burial Coax

If you’re working cable exterior, it has to have added safety from the climate and the weather. Outside cable has been specifically designed to withstand the weather. They arrive with a PE (polyethylene) jacket as an alternative or UV handled PVC jacket. The outside rated jacket makes this cable extraordinarily immune to chilly climate, moisture, chemical compounds, abrasion, and chopping.

While you bury a coaxial cable, moisture turns into much more of an impediment. With out added moisture safety, you danger moisture and contaminants coming into into the cable and corroding your shielding and conductor. Direct burial cable has the particular PE jacket that outside coax has, together with a particular gel-like substance within the jacket that blocks water and moisture corroding your conductor and damaging your sign.

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