Essential for transmitting radio frequency signals with minimal loss, RF coax cable is a critical component in many applications. Whether used in telecommunications, broadcast, or military communications, it ensures reliable signal transmission. Its ability to minimize interference and deliver clear signals makes it invaluable in both consumer and professional electronics. Many industries rely on RF coax cable assemblies to maintain optimal performance in wireless systems, testing environments, and networking applications.

Below we discuss how the RF cable assembly is different from other cable types, and how it is used with the most in-demand connectors and configurations.

What Exactly Is RF Coax?

RF cable assemblies are a specialized type of electrical cable designed to carry high-frequency signals while shielding against external interference. Unlike standard electrical wiring, it features a central conductor surrounded by a dielectric insulator, a shielding layer, and an outer jacket. This design helps maintain signal integrity and reduces electromagnetic interference (EMI). RF coax is used in applications where precise signal transmission is crucial, such as radio communications, broadcasting, and scientific testing. Compared to fiber optic or twisted pair cables, it offers a more robust and interference-resistant solution for RF applications.

Popular RF Coax Connectors

A variety of RF connectors are available to accommodate different applications, each offering unique benefits. Among the most common is the N type connector, widely used in telecommunications and wireless networks due to its durability and excellent signal retention. BNC connectors are another popular choice, especially in video and radio frequency applications, where quick connection and disconnection are necessary. A BNC cable assembly provides a reliably secure connection, making it ideal for test equipment, broadcast applications, and surveillance systems. MCX connectors and MMCX connectors are miniature options that serve well in compact devices like GPS receivers and wireless communication modules.

For applications involving RF coax cable that require higher frequencies, SMA connectors and SSMA connectors provide superior performance in microwave and RF communication systems. UHF connectors and TNC connectors are commonly found in radio transmission, ensuring stable connections in commercial and industrial settings. Mini UHF connectors work well in mobile applications, such as vehicle-mounted antennas, while QMA connectors offer quick-release functionality for ease of installation. FME connectors are often used in cellular and wireless applications, while the NMO mount is favored for mobile radio installations, particularly in emergency response and commercial fleet vehicles.

Popular Coax Cable Assembly Configurations

RF cable assemblies come in various configurations, depending on the signal requirements and environmental conditions. LMR 195 and LMR 240 are lightweight and flexible, making them ideal for wireless communications and low-loss applications. LMR 400 coax is one of the most widely used cables due to its low signal loss and high-power handling, often paired with LMR 400 connectors for optimal performance. LMR 600 is even more robust, designed for long-distance signal transmission with minimal loss.

Other widely used RF cable assemblies include RG 58, which is flexible and commonly used in commercial radio and networking applications. RG 174 is a thinner alternative, making it suitable for internal wiring in electronic devices. RG 196 and RG 316 are used in aerospace and defense applications where high-frequency performance and durability are required. TFT 402 RF coax cable is a high-performance coaxial cable designed for demanding RF applications, particularly in laboratory and testing environments. These cables, paired with the appropriate RF connectors and RF adapters, ensure optimal signal integrity in various industries.

The RF cable assembly plays a crucial role in various industries, from telecommunications to aerospace, ensuring low-interference, reliable signal transmission. Choosing the right combination of RF coax cable, RF connectors, and RF adapters is essential for achieving optimal performance in any RF application. Whether for broadcast, mobile communication, or high-frequency testing, RF coaxial cable remains a fundamental component in modern electronic systems. As technology advances, RF coax cable assemblies will continue to evolve, offering even greater efficiency and reliability in signal transmission.