Atem Male BNC to Male BNC, 1m, RG58C/U Coaxial, Terminated50 Ω

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Atem Male SMB to Male SMB, 500mm, RG174 Coaxial, Terminated50 Ω


Coaxial cables are a type of electrical cable with a unique construction that makes them ideal for transmitting high-frequency signals with minimal interference. They consist of a central conductor surrounded by an insulating layer, a braided or foil shield, and an outer protective jacket. 

This layered structure helps to minimise signal loss and protect against external electromagnetic interference (EMI). Coaxial cables are durable, easy to install, and designed to carry signals over long distances. While the cost of coaxial cables can vary depending on factors such as length, impedance, and shielding, they offer a reliable and cost-effective solution for various applications.

Read our comprehensive [guide on coaxial cables](https://sg.rs-online.com/web/content/discovery/ideas-and-advice/coaxial-cable-guide) to find out more about the various types and applications available.

## **Coaxial Cable Connector Types**

A coaxial connector is a device used to connect coaxial cables to other devices or components. There are various [types of coaxial connectors](https://sg.rs-online.com/web/content/discovery/ideas-and-advice/understanding-coaxial-connectors), each designed for specific applications and signal requirements. 

### **BNC Connector Coaxial Cable**

BNC (Bayonet Neil-Concelman) connectors are a compact and versatile type of RF cable widely used in various electronic applications. They are characterised by their locking mechanism, which allows for swift and secure connections, making them ideal for video signals and RF applications.

### **F Connector Coaxial Cable**

Also known as F-type connectors, these are commonly used for cable television and satellite signals. They are particularly compatible with RG6 and RG59 coaxial cables. 

### **N-Type Connector Coaxial Cable**

One of the standout features of N connectors is their weatherproof design. The threaded coupling mechanism of the connectors provides a secure, water-resistant seal when properly tightened, making them suitable for outdoor applications.

### **SMA Connector Coaxial Cable**

SMA (SubMiniature version A) connectors are compact, precision-engineered connectors. They are known for their small size and ability to handle frequencies of up to 18 GHz in standard configurations.

## **Types of Coaxial Cable Applications**

### **RF Coaxial Cable**

RF cables are specifically designed for transmitting radio frequency signals, commonly used in antennas, wireless communication systems, and broadcasting equipment. They are designed to minimise signal loss and maintain signal integrity at high frequencies.

### **RG Coaxial Cable**

RG stands for ‘radio guide’, and the RG number of a cable refers to its thickness. The higher the RG number, the thinner the central conductor core is.

#### **RG58 Coaxial Cable**

RG58 coaxial cables are a common type of connection used for low-power RF applications, such as amateur radio, CB radio, and short-range communication systems.

#### **RG316 Coaxial Cable**

These miniature coaxial cables have good flexibility and high-temperature resistance. They are often found in applications where space is limited or high temperatures are present, such as in aerospace and military applications.

#### **RG59 Coaxial Cable**

Though they are older and less commonly used today, RG59 coaxial cables are still found in home audio and video applications. With lower bandwidth capacity, they are best suited for low-frequency transmissions over shorter distances. However, they are also more susceptible to signal loss.

#### **RG11 Coaxial Cable**

RG11 coaxial cables have a larger overall diameter, due to their enhanced shielding. These cables are designed for long-distance signal transmissions and can withstand harsh environments.

#### **RG178 Coaxial Cable**

These are extremely flexible and thin cables. RG178 coaxial cables offer low-loss transmission and are suitable for both indoor and outdoor uses. 

## **Coaxial Cable Impedances**

Impedance refers to the resistance encountered by electrical energy flowing through a circuit. Common impedance values for coaxial cables include 50 Ohm (for data/wireless communications) and 75 Ohm (for video signals).

### **50 Ohm Coaxial Cables**

50 Ohm coaxial cables are commonly used in moderate power environments such as data transmission systems including Ethernet networks. 

### **75 Ohm Coaxial Cables**

75 Ohm coaxial cables are mostly used for video signals in residential installations, ensuring quality transmission without degradation. 

## **Coaxial Cable Shielding**

Shielding refers to the protective layer within a coaxial cable that helps to minimise electromagnetic interference (EMI). Coaxial cables can be shielded or unshielded, depending on the application requirements.

### **Shielded Coaxial Cable**

Shielded coaxial cables have a conductive layer, typically a braided or foil shield, that surrounds the inner conductor and insulation. This shield helps to block external electromagnetic interference, preventing signal degradation and ensuring reliable data transmission.

### **Unshielded Coaxial Cable**

Unshielded coaxial cables do not have a dedicated shielding layer. They are typically used in applications where electromagnetic interference is not a significant concern or where cost is a major factor.

## **Benefits of Coaxial Cables**

Coaxial cables are a preferred choice in numerous applications, owing to some of their key benefits:

1. **Low Signal Loss:** Coaxial cables are designed to minimise signal loss, allowing them to transmit high-frequency signals over long distances without and maintain signal integrity with minimal degradation, making them ideal for applications such as cable television and broadband internet.
2. **High Bandwidth Capacity:** Coaxial cables support a wide bandwidth, enabling them to carry large amounts of data efficiently, providing exceptional utility in telecommunications and broadcasting, where high-speed data transmission is required.
3. **Immunity to Electromagnetic Interference (EMI):** One of the standout features of coaxial cables is their ability to resist external electromagnetic interference. The design includes a shield that protects the inner conductor from noise and interference from nearby electronic devices, ensuring clear and reliable signal transmission.
4. **Durability and Longevity:** Coaxial cables are built to withstand various environmental conditions, making them durable and long-lasting. They are often constructed with robust materials that resist damage from physical stress, moisture, and temperature fluctuations, which is essential for both indoor and outdoor installations.
5. **Versatility:** Coaxial cables come in various types (such as RG58, RG59, RG11) tailored for specific applications, making them versatile for use in different industries including telecommunications, automotive, aerospace, and security systems.
6. **Ease of Installation:** Coaxial cables are relatively easy to install compared to other types of cabling systems like fibre optics. This allows for bending and routing around obstacles without compromising performance, making installation more straightforward.
7. **Cost-Effectiveness:** Compared to fibre optic cables, coaxial cables are generally more affordable while still providing reliable performance, making them an attractive option for both residential and commercial applications where budget constraints exist.
8. **Support for Multiple Channels:** Coaxial cables can transmit multiple signals simultaneously without interference between channels. In applications like cable television distribution, coaxial cables allow multiple channels to be delivered over a single cable.
9. **Wide Range of Applications:** From connecting antennas and transmitting video signals to serving as a backbone for data networks, coaxial cables are utilised in various applications across different sectors. Their reliability makes them suitable for critical communication systems where performance is paramount.

## **Industrial Applications of Coaxial Cables**

Coaxial cables are widely used in various industrial applications for their ability to transmit high-frequency signals with minimal interference.

### **Telecommunications**

Coaxial cables play a crucial role in telecommunications infrastructure, carrying voice, data, and video signals over long distances. For example, they are used to transmit information through telephone networks and cable television systems.

### **Radio Frequency (RF) Applications**

Antennas, wireless communication systems, and broadcasting equipment all rely on coaxial cables to transmit RF signals.

### **Computer Networks**

Coaxial cables are also found in computer network connections, particularly in Ethernet networks, enabling high-speed signal transfer over long distances.

### **Industrial Automation**

Industrial automation depends on whether various system components can communicate with each other. Coaxial cables come in here to ensure reliable signal transmission, even in harsh environments.

### **Security Systems**

Coaxial cables, such as RG59 cables, are commonly used in security systems for transmitting video signals from security cameras to monitoring and recording equipment.

## **Get Coaxial Cables from RS Singapore**

As a trusted supplier and distributor of coaxial cables, RS Singapore offers a comprehensive range of options to meet diverse needs. Our coaxial cables come from reputable brands such as [TE Connectivity](https://sg.rs-online.com/web/b/te-connectivity/), [Radiall](https://sg.rs-online.com/web/b/radiall/), and [Siretta](https://sg.rs-online.com/web/b/siretta/), ensuring high quality and performance. From BNC connectors to specific RG types, there’s a wide variety to choose from on our online platform.

Beyond electrical hardware, RS Singapore also offers various mechanical instruments and measuring tools, such as [digital calipers](https://sg.rs-online.com/web/c/test-measurement/engineering-test-measurement/calipers/) and various [DIN rail](https://sg.rs-online.com/web/c/enclosures-server-racks/enclosures-racking-components/din-rails/) mounts.

Conveniently shop on our website and have your items delivered to you when you need them with our flexible delivery options. Check out our [delivery information page](https://sg.rs-online.com/web/content/support/all-articles/delivery) to find out more about our delivery options, fees, and timings.



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