Coaxial Cables

Coaxial cables are specialized signal transmission cables designed to carry high-frequency electrical signals with minimal loss and external interference. They are used extensively in telecommunications, broadcasting, CCTV surveillance systems, satellite TV, data centers, and industrial automation. ETK Kablo manufactures a wide range of coaxial cables tailored for consistent impedance, low attenuation, electromagnetic shielding, and long-term mechanical reliability across diverse operating environments.

Functional Role and Signal Transmission Principles

Coaxial cables are constructed to ensure uniform impedance and shielding, essential for transmitting analog and digital signals over extended distances without distortion. The central conductor carries the signal, while the surrounding dielectric insulator, metallic shield, and outer sheath provide physical protection and EMI (electromagnetic interference) resistance. This geometry allows coaxial cables to maintain high signal fidelity, making them ideal for RF (radio frequency), video, and broadband communications.

ETK Kablo's coaxial cables are engineered to meet the transmission demands of modern infrastructure, including high-frequency applications up to several GHz. With standard characteristic impedance options of 50 ohms (commonly used for data and RF) and 75 ohms (for video and broadcast signals), the product range supports both baseband and broadband technologies.

Construction and Material Composition

ETK Kablo’s coaxial cable lineup is available in both single-core and multi-core versions, with each variant built to deliver superior signal performance and mechanical resilience. The typical construction includes:

• Inner Conductor: Solid bare copper or copper-clad steel (CCS), depending on application bandwidth and structural strength requirements.
• Dielectric Insulation: Foamed polyethylene (PE) or solid polyethylene designed for optimal electrical insulation and stable capacitance.
• Shielding: Options include single, dual, or quad shielding using aluminum/polyester tapes and/or braided tinned copper or aluminum wires for enhanced EMI suppression.
• Sheath: UV-resistant PVC, PE, or halogen-free LSZH materials, selected according to installation environment (indoor, outdoor, underground, conduit, or trunking).

Cables are manufactured to precise dimensional tolerances to ensure uniform impedance and minimal return loss, especially important for high-resolution video signals and RF systems.

Electrical Performance and Signal Integrity

ETK Kablo’s coaxial cables are designed with the following electrical performance parameters:

• Characteristic Impedance: 50 Ω for RF/data or 75 Ω for video/BNC systems
• Capacitance: Typical values range between 52–67 pF/m depending on the design
• Attenuation: Low-loss construction ensures minimal signal degradation over distance
• Screening Effectiveness: High shielding coverage (over 85% for braid + foil versions) to minimize electromagnetic interference
• Velocity of Propagation: Optimized based on dielectric type (up to 85%)

These specifications make the cables ideal for analog video, digital coax, satellite TV, and RF backbone installations where performance stability is critical.

Standards and Certifications

ETK Kablo manufactures coaxial cables in accordance with the following standards:

• EN 50117 – European standard for coaxial cables used in CATV systems
• IEC 61196 – International specification for coaxial communications cables
• RoHS / REACH – Ensures cables are free from hazardous substances
• ISO 9001 – Quality control system for traceability, production consistency, and testing

Application Areas by Industry

Coaxial cables from ETK Kablo are used in a variety of sectors where high-frequency signal transmission is required:

Broadcasting and Satellite Systems

Used in signal distribution for TV transmitters, satellite receivers, and headend stations. RG-6 and RG-11 variants ensure low-loss, high-resolution video transmission across long runs.

CCTV and Security Systems

Surveillance networks depend on 75-ohm coaxial cables for analog and HD video signals between cameras, DVRs, and control panels. Dual- or tri-shielded variants offer better resistance to electrical noise and maintain stable picture quality.

Telecommunications

In RF applications and cellular base stations, 50-ohm coaxial cables provide accurate impedance matching and low VSWR, ensuring reliable antenna and equipment interconnects.

Data Centers and Control Rooms

Used in test and measurement equipment, signal analyzers, and backbone communication systems where signal integrity and shielding are vital in dense cabling environments.

Commercial and Public Buildings

Deployed for broadband TV, building intercom systems, and satellite distribution in office towers, hotels, airports, and universities.

Military and Industrial Applications

Used in RF signal routing in sensitive environments where shielding effectiveness, mechanical strength, and thermal stability are essential.

Product Range and Technical Specifications

ETK Kablo’s coaxial cable portfolio includes common RG (Radio Guide) types and project-specific variants:

• RG-6 / RG-59: Widely used for CCTV, CATV, and home satellite systems
• RG-11: Preferred for long-run installations due to lower attenuation
• RG-58 / RG-213: Common in radio and RF data networks
• Custom-Made Coaxial Designs: For high-frequency instrumentation and OEM applications

Environmental Performance and Material Behavior

ETK Kablo’s coaxial cables are designed for durability under varying environmental conditions. The PVC or PE sheaths provide mechanical abrasion resistance and flexibility, while the LSZH options ensure compliance with modern fire safety standards.

• UV Resistance: PE-sheathed models suitable for rooftop or exposed outdoor runs
• Low Smoke / Halogen-Free: Ideal for public buildings, tunnels, or underground installations where smoke toxicity and corrosiveness are regulated
• Operating Temperature Range: -40°C to +80°C for most variants

Cable performance remains consistent under thermal fluctuations, ensuring longevity and minimal signal degradation over time.

Coaxial cables are foundational to modern communication and signal systems. ETK Kablo’s product portfolio—designed around signal fidelity, shielding efficiency, and environmental resilience—addresses a wide spectrum of application needs in CCTV, broadcasting, telecom, and RF infrastructure. With compliance to global standards, diverse configurations, and project-ready customization, ETK Kablo provides technically robust solutions that support the evolving demands of high-performance signal transmission.