Which coax

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Jun 6, Mar 24, Question Unstable wired connection. Government specifications are identified with an RG designation. The meaning of the individual components of the designation are:. It's suitable for basic analog TV antenna feeds in residential applications and for basic CCTV systems over short cable runs. The copper-clad-steel type has high tensile strength and should be used when terminating the cable with F-Type connectors.

It features a copper-clad-steel inner conductor. Male connectors have the center wire sticking out, while female connectors have a space for the center wire to stick into. Be aware that coax cables sometimes have signal leakage known as ingress or egress. This causes tiling, fuzzy or snowy signals. Coaxial cable is a type of cable that has an inner conductor surrounded by an insulating layer, surrounded by a conductive shielding.

Many also have an insulating outer jacket The diagram below illustrates the construction of a typical cable. Electrical signal flows through the center conductor.

Both of these types of cable can be used for carrying video, audio, and other forms of data, and both can offer you distinct advantages and disadvantages in setting up your network.

Deciding which is best for your situation depends on the distance of your connection and the amount of data you will send. Fiber optic cables carry a signal for several miles before needing a repeater. Signal losses are higher in coax cable, so you should use it for shorter distances. Fiber optic cables carry far more information. Fiber optic cable is also significantly more expensive.

Fiber optic cables are found less frequently in residential and consumer settings than coaxial cables. If you need a certain type of jacket, make sure and check the specs. But we'll get into different jacket types later on. Shielding prevents 'noise' from interfering with your signal, and therefore preserves your signal quality. Coaxial cables usually come with two types of shielding: braid and foil.

Most coaxial cables include both although some RG 59 cables still use single shielding. In general, the more shielding you have, the better your cable will perform, especially in longer runs, but there are differences in what the shields protect.

Foil shielding typically involves an aluminum or mylar foil bonded to the dielectric, underneath a metal braid. Foil is very effective at protecting against high frequency electromagnetic interference EMF. The braid is effective against lower-frequency interference. RG 59 cable uses a copper braid and RG 6 can use copper or an aluminum braid.

There are "quad shielded" cables that have an extra layer of foil and braid shielding and can offer better protection. While shielding techniques keep external signal from affecting our signals, there is always some signal loss over the length of any cable. Just remember, the longer your cable runs are, the more signal loss you will experience. Plenum spaces are the open spaces above the ceiling or below the floor that are used for air circulation. These spaces are important for air circulation in commercial buildings, but they also bring some problems if you ever have a fire because of the high oxygen content and lack of fire barriers.

Using untreated cables in plenum spaces can spread the fire to other areas very quickly and spread noxious smoke throughout the building. Any cable that you run through plenum spaces must be plenum rated. If you are running cable outside, it has to have added protection from the weather and the elements.