SLL-240 (Selteq Low Loss 240) Coaxial Cable Ø6.1 mm is a professional low-loss RF coaxial cable designed for stable signal transmission in telecommunications and high-frequency systems. The use of a foamed polyethylene dielectric and double shielding provides significantly lower attenuation at high frequencies compared to standard coaxial cables.
SLL-240 Coaxial Cable is optimized for applications where impedance stability, effective EMI shielding, and reliable operation at high power levels are critical.
🫡 We are a team of veterans
We are a team of veterans focused on real-world RF and telecom infrastructure requirements, selecting cable solutions that deliver predictable performance and long-term reliability.
⚙️ Specifications
| Parameter | Value |
|---|---|
| Cable type | SLL-240 (Selteq Low Loss 240) |
| Outer diameter | 6.10 mm |
| Characteristic impedance | 50 Ohm |
| Inner conductor | Solid copper Ø1.42 mm |
| Dielectric | Foamed polyethylene Ø3.81 mm |
| First shield | Aluminum foil |
| Second shield | Tinned copper braid Ø4.52 mm |
| Outer jacket | Polyethylene (PE), 0.8 mm thickness |
| Capacitance | 79.4 pF/m |
| Velocity of propagation | 84 % |
| Velocity factor | 1.19 |
| Shielding effectiveness | > 90 dB |
| Test voltage | 5000 V AC |
| Peak power | 5.6 kW |
| Return loss | < –18 dB (3–3000 MHz) |
💬 Comment / comments
SLL-240 is widely used in antenna feeder lines, data transmission systems, and RF test equipment, offering a balanced combination of compact size, low attenuation, and high power handling capability.
🎯 Who it is for
For military communication units, telecom network operators, system integrators, RF engineers, and industrial installations requiring low-loss, reliable RF signal transmission.