Renkforce SKB 488-20 Cabo coaxial 20 m branco 75 Ohm duplamente blindado

With a shielding effectiveness exceeding 90 dB, the Renkforce SKB 488-20 coaxial cable ensures your satellite, DVB-T, and cable TV signals arrive with minimal interference, even over a generous 20-metre run. This double-shielded 75-ohm cable is built for reliable, high-quality transmission in both residential and commercial installations.

Overview

The Renkforce SKB 488-20 is a bulk coaxial cable supplied without connectors, giving you the flexibility to terminate it exactly as your installation requires. Its white PVC jacket blends neatly into most environments, while the foamed polyethylene dielectric and solid copper inner conductor maintain signal integrity across the full frequency range. Whether you're wiring a new satellite dish, extending a cable TV outlet, or setting up a DVB-T antenna, this cable delivers consistent performance.

What stands out

• Double shielding with aluminium foil and copper braid for superior interference rejection.
• Low attenuation: only 10.5 dB/100m at 100 MHz, rising to 52.5 dB/100m at 2050 MHz.
• Solid copper inner conductor (0.5 mm diameter) for excellent conductivity.
• Flexible 5 mm outer diameter with durable PVC jacket.
• 20-metre length ideal for longer runs without splices.

Technical details

• Cable type: Coaxial
• Impedance: 75 Ω
• Shielding: Double (aluminium foil + copper braid 32 x 0.12 mm)
• Shielding effectiveness: >90 dB
• Inner conductor: Copper, 0.5 mm diameter
• Dielectric: Foamed PE
• Jacket: PVC, white
• Outer diameter: 5 mm
• Attenuation: 10.5 dB/100m @ 100 MHz, 24.5 dB/100m @ 500 MHz, 35.5 dB/100m @ 1000 MHz, 52.5 dB/100m @ 2050 MHz
• Connectors: None (bulk cable)
• Application: SAT, DVB-T, cable TV

Our verdict

The Renkforce SKB 488-20 is a dependable choice for professional installers and DIY enthusiasts alike. Its robust shielding and low attenuation ensure clean signal delivery over long distances, while the connector-free design lets you customise terminations to your exact needs.