Coaxial Cable EK-H155 (YWLXpek 50-1.17mm2/3.9) by LEC is a 50-ohm transmission cable engineered for RF and signal distribution. With a conductor cross-section of 1.17 mm² and an outer diameter parameter of 3.9 mm, this cable is intended to provide consistent impedance and controlled attenuation for antenna feeds, CCTV systems, broadcast links and other communication connections that require stable signal transfer.
Advantages
The cable offers a defined 50 Ω characteristic impedance and a sizable conductor cross-section that helps reduce resistive loss over moderate distances. Its 3.9 mm outer profile balances flexibility and mechanical protection, making it compatible with typical installation practices for antennas, surveillance cameras and RF equipment. The construction aims to deliver predictable electrical performance for systems that depend on low reflection and repeatable signal levels.
Suitable for
- Antenna feeds for terrestrial and satellite systems
- CCTV video transmission and surveillance installations
- Short- to medium-range broadcast and communication links
- RF test setups and lab signal routing where 50 Ω matching is required
When it may not be suitable
This cable is specified for 50-ohm RF applications and is not intended for mains power, high-voltage or low-frequency power distribution. For extremely long runs where every dB of loss is critical, lower-loss or larger-diameter coaxial types may be preferable. Also, specialised environments that demand enhanced chemical, temperature or fire resistance may require cables with specific rated jackets or certifications not described here.
Key specifications
- Characteristic impedance: 50 ohm
- Conductor cross-section: 1.17 mm²
- Outer parameter (nominal diameter): 3.9 mm
- Application: RF and signal distribution (antenna feeds, CCTV, broadcast/communication links)
How to use
Prepare ends by following standard coaxial termination procedures: strip the outer jacket and dielectric to expose the shield and centre conductor to the lengths required by the connector manufacturer. Use compatible 50 Ω connectors and torque values recommended by the connector vendor to maintain impedance matching and minimize reflections. Route the cable avoiding tight bends below the specified minimum bend radius, protect from sharp edges and secure with appropriate clamps or ties to prevent mechanical strain. For outdoor runs use weatherproof connectors and sealing methods as required by the installation.
What to consider before purchase
- Verify that a 50-ohm cable with 1.17 mm² conductor and 3.9 mm outer profile meets your system's loss and impedance requirements
- Check connector compatibility and whether additional connectors or adapters are needed
- Confirm environmental suitability (UV exposure, temperature range, moisture) for intended installation locations
Usage recommendations
For best results, match this 50 Ω cable with like-impedance connectors and equipment, avoid excessive bending and secure runs to reduce movement. When used for antenna or broadcast links, measure insertion loss and VSWR after installation to confirm acceptable performance for the specific frequency range.
