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Coaxial cables, also called coax cables, are a form of electrical cable which carries radio frequency (RF) signals. Historically they have been used to connect satellite antenna facilities to homes and businesses.

### How do Coaxial Cables work?

These cables carry data via the centre conductor, usually a copper wire, which is surrounded by a tubular dielectric plastic insulator. They feature a shielded design which protects the internal conductor from damage and electromagnetic interference (EMI), ensuring rapid and reliable signal transmission. The shield is commonly made of braided copper mesh, which is contained in an insulating outer jacket.

Coax cables have a distinctive shape which is thick and round due to their interior insulation layer. The most common sizes are: RG-6, RG-11 and RG-59. They also have a transmission speed of 10Mbps (megabits per second) and have a much higher transmission capacity than twisted pair cables. They can be connected to other devices using coaxial cable connectors, such as BNC, TNC, SMB, 7/6 DIN connectors, QMC, MCX, and RCA connectors.

### Benefits of Coaxial Cables:
- Durable
- Easy to install
- Resistant to EMI
- Designed to transmit signals over long distances

#### Coaxial Cable Applications

Coaxial cables can be used in applications such as feedlines connecting radio transmitters and receivers with their antennas, computer network (internet) connections, distributing cable television signals, CCTV, digital audio (S/PDIF), and video.

At RS we have a broad range of coax cables from trusted brands such as Alpha Wire, Hirose, Belden, Molex, Amphenol, Huber+Suhner, Phoenix Contact, Atem, RS Pro, and many more to help you find the ideal choice for any application. For detailed information about their uses and the different kinds of coaxial cables available, we recommend you read our bespoke [coaxial cable guide](/web/content/discovery/ideas-and-advice/coaxial-cable-guide).



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Coaxial Cable | RG6 Coaxial Cables | RS

Coaxial Cable

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RG59 Coaxial Cable | RS

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Atem Coaxial Cable | RS Components

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SMA Cable | SMA Connector Cable | RS

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RG59 Cable | RS

RG59 Cable is a type of coaxial cable ideal for use with RF signal and low power, analogue video type applications. RG59 coaxial cables feature multiple small intertwined fibres, making them much more flexible than other types of coaxial cables. RG59 cables are commonly single shielded coaxial cables and feature a small diameter and centre conductor.<h2>Where is RG59 cable used?</h2>RG59 cables feature flexible fibres that are small in diameter, making them ideal for use in tight spaces. Due to the compact conductor sizes and shielding, they are best suited for analogue video settings such as observational cameras in public spaces. As a result, It is not recommended to use RG59 cables for applications that feature high frequencies over long distances.

50 Ohm Coax | RS

A range of high quality 50 ohm coax cables. 50 Ohm coaxial cable is designed for use with any device that functions as a transmitter or receiver such as CB Radios, TV & Boadcast Transmitters, 2-Way radios & Wi-Fi and Mobile phone repeaters.

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Belden Coaxial Cable | RS

If you're looking for coaxial cables that can handle a diverse range of audio, video, or data transmission needs with minimal signal loss and interference, choose from our range of coaxial cables by Belden.<h2>What is Coaxial Cable and how does it work?</h2>A coaxial cable (also known as coax cable) is a type of electrical cable. It is made up of a central conductor (usually copper wire) which is surrounded by a dielectric plastic insulator. This is then encased in a braided mesh to shield the cable from EMI (electromagnetic interference). This construction is finally enclosed in an insulated external layer, such as a PVC jacket.It works by carrying the signal or electrical current along the central conductor. Its insulating layer and metallic shield ensures reliable protection against loss of signal and interference, while the outer layer provides an additional protective barrier against environmental conditions.<h3>What are Coaxial Cables used for?</h3>Coaxial cables are typically used for transmitting data, video and audio communications, and networking. You'll find these cables commonly used in TV and radio broadcasting, surveillance systems, and internet/data communication for homes and businesses. They are relied upon due to their high bandwidth capabilities, ability to transmit signals over long distances, and their resistance to EMI.Belden has a broad portfolio of coaxial cables you can choose from here at RS, including 50 Ohm and 75 Ohm impedance cables. Their 50 Ohm models are perfect for carrying power and voltage signals over long distances, maintaining signal strength and integrity. They suit point-to-point and point-to-multipoint wireless antenna communications, like wireless mics and two-way radios.The 75 Ohm cables are designed to ensure world-class broadcast quality and signal integrity for high resolution applications. They are highly efficient at signal transmission, minimising signal loss, and can handle frequencies from 12 GHz to 3 GHz. They also feature specially formulated high-density foam polyethylene which improves resistance to crushing.The Belden 1694A cable, which is RG6, low loss, and ideal for digital video applications, is a popular choice. Belden's RG59 coaxial broadcast video cables are great for low-bandwidth, low-frequency installations. They feature a solid 20 AWG bare copper conductor and Duofoil shielding with a tinned copper braid.Belden is a global leading industry expert in networking, connectivity and cabling products, and they aim to support and enable an increasingly connected future. Their high-quality signal transmission solutions are designed to offer the superior reliability you deserve.With Belden, you can be sure to find high performance coaxial cables to suit any application.

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RG6 Coaxial Cable| RG6 RF Cable | RG6 Cable | RG6U Cable | RS

RG6 cables are a type of coaxial cable commonly used in domestic and commercial settings to transmit satellite signals. Due to the versatility of RG6 cables, they are a staple cable in many consumer applications and recognised as an industry standard coaxial cable.<h2>Where are RG6 Cables Used?</h2>RG6 cables feature a thin and flexible profile, making them ideal for use in a wide range of environments. Furthermore, RG6 cables also utilise a large conductor, providing higher signal frequencies and shielding. As a result, they are commonly used to relay cable television signals and are suitable for indoor wall and ceiling installations. RG6 are ideal for use with a wide range of consumer applications such as internet, cable and satellite television.

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RG11 Coaxial Cable | RG11 Coax | RS

RG11 coaxial cable is thicker than other types of RG cable which allows it to carry signals over longer distances with less signal loss. The robust construction of RG11 coaxial cable means it can withstand exposure to the elements better than thinner RG6 cables making it suitable for use in outdoor applications. RG11 cable is used for long-distance signal transmission where long cable runs are required and high signal quality is crucial such as satellite television installations and telecommunications.

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RG Cable | RS

RG Cables are coaxial cables with an RG rating. 'RG' in RG cables stands for 'Radio Guide' which was a specification derived from World War II military communications. The RG number of a coaxial cable indicates the gauge or cable thickness, the higher the RG number the thinner the central conductor core is. The ,most common RG cables are RG6 cable, RG11 cable and RG59 cable.

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BNC Coaxial Cable|Coaxial Cables| RS

BNC cable, or Bayonet Neill-Concelman cables, are a type of coaxial cable and connector commonly used in various applications, especially in the field of video and RF (Radio Frequency) signal transmission. They are known for their reliable and secure connections.BNC cables and connectors are known for their durability, ease of use, and ability to transmit high-frequency signals effectively. They remain a popular choice in many professional and industrial settings where reliable and secure connections are essential.What are the features and benefits of BNC Coaxial Cables?<ul><li>Connector Type: The BNC connector is a type of RF connector that uses a bayonet coupling mechanism for quick and secure connections. It is characterized by its round shape with a threaded outer shell and a pin-and-socket interface.</li><li>Types of BNC Connectors: There are two main types of BNC connectors: BNC male and BNC female. The male connector has a pin in the centre, while the female connector has a socket. They can be easily connected and disconnected by twisting the threaded shell.</li><li>Applications: BNC cables are widely used in applications that require a reliable and high-frequency connection, such as video surveillance systems, oscilloscopes, network analysers, radio and television broadcasting equipment, and some older computer networking technologies.</li><li>Impedance: BNC connectors come in two standard impedance values: 50 ohms and 75 ohms. The choice of impedance depends on the specific application. 50-ohm connectors are commonly used in RF and high-frequency applications, while 75-ohm connectors are typically used for video and audio connections, including SDI (Serial Digital Interface) for high-definition video.</li><li>Cable Types: BNC cables use coaxial cable, typically with either a 50-ohm or 75-ohm impedance, depending on the application. RG-58 and RG-59 are common cable types used for BNC connections.</li><li>Locking Mechanism: The bayonet locking mechanism of BNC connectors provides a secure connection, making them suitable for applications where vibration or movement may be a concern. This mechanism ensures that the connectors remain firmly attached and do not easily disconnect.</li><li>Termination: BNC connectors can be easily terminated by attaching them to the coaxial cable with the appropriate tools. There are crimp-on, solder-on, and twist-on BNC connectors, each with its own termination method.</li><li>Compatibility: BNC connectors and cables are compatible with a wide range of devices and equipment. It's important to ensure that you select the correct BNC type (50-ohm or 75-ohm) based on the specific application.</li><li>Top of Form</li></ul>&nbsp;

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White Coaxial Cable|Coaxial Cables| RS

White coaxial cables are coaxial cables that are coloured white. Coaxial cables are commonly used for various applications, including cable television (TV), internet, and other data transmission. The colour of the coaxial cable does not significantly impact its functionality or performance.White coaxial cables are often used in residential and commercial settings for aesthetic reasons. They can blend in with white walls, ceilings, or other surroundings more seamlessly than cables of other colours, making them less visually obtrusive.The most important aspect of a coaxial cable is its specifications and quality, which include factors like cable impedance (typically 75 ohms for video and TV signals), shielding, and signal loss characteristics. These specifications are more relevant to the cable's performance and suitability for specific applications. The choice of coaxial cable should be based on the requirements of the devices and signals it will carry, such as cable TV, satellite TV, or internet connections.

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10m Coaxial Cable|Coaxial Cables| RS

A 10m coaxial cable is a type of coaxial cable that is 10 meters (approximately 32.8 feet) in length. Coaxial cables are commonly used for various applications, including television (TV) signals, internet connections, and other data transmission needs.The "10m" in the term indicates the cable's length, which is useful for connecting devices or extending the reach of a connection. When choosing a coaxial cable, it's important to consider factors such as cable impedance, shielding, and signal loss characteristics to ensure that it meets the requirements of your specific application.Coaxial cables come in various lengths, and choosing the right length depends on the distance between the devices you're connecting and the available cable routing. A 10m coaxial cable is suitable for relatively short-distance connections where you need a cable that's 10 meters in length.&nbsp;

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RG213 Coaxial Cable|Coaxial Cables| RS

RG213 is a type of coaxial cable that is commonly used for various applications, including radio frequency (RF) and telecommunications. It is known for its durability and signal-carrying capabilities. Here are some key characteristics of RG213 coaxial cable:<ol><li>Impedance: RG213 cables typically have an impedance of 50 ohms. This is a common impedance for RF applications, such as connecting antennas to transceivers and other communication equipment.</li><li>Signal Loss: RG213 cables have relatively low signal loss, making them suitable for applications that require minimal signal degradation over long distances.</li><li>Diameter: RG213 cables are relatively thick and have a larger diameter compared to many other coaxial cables. This thickness contributes to their durability and ability to handle higher power levels.</li><li>Shielding: RG213 cables typically have a braided shield that provides excellent protection against interference and signal leakage.</li><li>Connectors: RG213 cables are often terminated with connectors compatible with the specific devices or equipment being used. Common connectors for RG213 cables include N-type connectors and PL-259 connectors.</li><li>Applications: RG213 coaxial cables are commonly used in amateur radio (ham radio) setups, cellular signal boosters, and other RF applications where a robust and low-loss cable is needed.</li></ol>It's important to note that RG213 cables come in various lengths, so you can choose the length that suits your specific installation requirements. When selecting a coaxial cable, it's essential to consider factors such as impedance, signal loss, shielding, and the type of connectors needed to ensure it meets the needs of your application.

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Black Coaxial Cable|Coaxial Cables| RS

Black coaxial cables are coaxial cables that are coloured black. These cables are used for a variety of applications, including television (TV) signals, internet connections, and other data transmission needs. The colour of the coaxial cable is primarily a matter of aesthetics and does not significantly affect the cable's performance or functionality.The most important aspects of a coaxial cable are its technical specifications, such as impedance, shielding, and signal loss characteristics. These specifications determine how well the cable can transmit signals and whether it is suitable for specific applications.When selecting a coaxial cable, consider factors like cable impedance (commonly 75 ohms for video and TV signals), the type of shielding (usually braided or foil), and signal loss characteristics (lower loss is better for longer cable runs). The choice of a black coaxial cable is mainly for visual integration with dark-colored walls, ceilings, or surroundings, where it can be less conspicuous compared to cables of other colors.The suitability of a coaxial cable depends on the requirements of the devices it will connect and the signals it will carry. The colour of the cable is primarily a matter of personal preference and how well it matches the aesthetics of the installation location.

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Brown Coaxial Cable|Coaxial Cables| RS

Brown coaxial cables are coaxial cables that are coloured brown. Like coaxial cables of other colours, the brown colour of the cable is primarily an aesthetic choice and does not significantly impact the cable's performance or functionality. Coaxial cables are commonly used for various applications, including television (TV) signals, internet connections, and other data transmission needs.The most important factors to consider when choosing a coaxial cable are its technical specifications, such as impedance, shielding, and signal loss characteristics. These specifications determine how well the cable can transmit signals and whether it is suitable for specific applications.Brown coaxial cables are used in situations where the brown colour is preferred for blending in with the surroundings, such as brown walls or decor. The choice of a brown coaxial cable is mainly for visual integration and aesthetics.When selecting a coaxial cable, consider factors like cable impedance (commonly 75 ohms for video and TV signals), the type of shielding (usually braided or foil), and signal loss characteristics (lower loss is better for longer cable runs). The suitability of a coaxial cable depends on the requirements of the devices it will connect and the signals it will carry, and the choice of cable colour is a matter of personal preference and how well it matches the aesthetics of the installation location.

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TV Aerial Cable | TV Coaxial Cable | RS

A TV aerial cable or TV coaxial cable is a type of cable used to transmit television signals from an antenna, cable service provider, or other sources to a television set. It is the most common type of cable used for this purpose. Here are some key features and components of a TV coaxial cable:<ol><li>Coaxial Construction: A coaxial cable consists of two main components: the centre conductor and the outer conductor. These two conductors are separated by an insulating layer. The design is called "coaxial" because the centre conductor and the outer conductor share the same axis, with one surrounding the other.</li><li>Centre Conductor: The centre conductor is typically made of copper or aluminium and carries the electrical signals. It is usually a solid wire but can also be stranded.</li><li>Insulating Layer: Surrounding the centre conductor is an insulating layer, usually made of plastic, which prevents electrical contact between the centre conductor and the outer conductor.</li><li>Outer Conductor (Shield): The outer conductor, also known as the shield, is usually made of braided wire or foil. It serves two primary purposes: it provides a path for returning current and acts as a shield to reduce interference from external electrical and radio frequency (RF) signals.</li><li>Dielectric Material: The insulating layer, which separates the centre conductor and the outer conductor, is known as the dielectric material. Common materials used for this purpose include polyethylene or foam.</li><li>Connectors: Coaxial cables have connectors at both ends that are designed to make a secure electrical connection. The most common type of connector for TV coaxial cables is the F-type connector, which is a threaded, screw-on connector.</li><li>Impedance: TV coaxial cables are typically designed with a characteristic impedance of 75 ohms. This value is important for maintaining signal integrity.</li></ol>

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RG58 Cable | RG58 Coax Cable | RS

RG58 is a type of coaxial cable that is commonly used in various applications, including telecommunications, computer networking, and amateur radio. Here are some key features and characteristics of RG-58 coaxial cables:<ul><li>Design: RG-58 cables have a coaxial design, which means they consist of a central conductor (usually copper or aluminium), an insulating layer, a metallic shield, and an outer insulating layer. This design helps to reduce interference and signal loss.</li><li>Impedance: RG-58 cables typically have a characteristic impedance of 50 ohms. This impedance value is suitable for many RF (radio frequency) and data transmission applications.</li><li>Diameter: The outer diameter of the RG-58 cable is usually around 5 millimetres (0.195 inches).</li><li>Centre Conductor: The centre conductor carries the electrical signal and is typically made of copper or aluminium. Copper is preferred for its better electrical conductivity.</li><li>Insulation: The centre conductor is surrounded by an insulating material, usually made of polyethylene (PE), which helps maintain the separation between the centre conductor and the outer shield.</li><li>Shielding: RG-58 cables have a braided or spiral metallic shield around the insulation. This shield provides protection against electromagnetic interference (EMI) and radio frequency interference (RFI).</li><li>Outer Jacket: The outermost layer of the cable is the jacket, which is typically made of PVC (polyvinyl chloride) or other materials. The jacket protects the inner components from environmental factors and physical damage.</li><li>Applications: RG-58 coaxial cables are commonly used in applications where 50-ohm impedance is required, such as connecting antennas to radios, computer networking (particularly older Ethernet standards like 10Base2), and in some test and measurement equipment.</li><li>Limitations: RG-58 cables are suitable for shorter cable runs and lower frequencies. They are not ideal for high-frequency applications where signal loss and attenuation are critical factors. For such high-frequency applications, cables with a lower loss (lower attenuation) and a higher characteristic impedance, such as RG-213 or LMR-400, may be preferred.</li><li>Connectors: RG-58 cables typically use BNC or TNC connectors, which are common in RF and networking applications.</li></ul>

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