Description
RG-217 is a rugged, large-diameter coaxial cable designed for high-performance 50 Ohm systems. It is engineered to provide superior power handling capabilities while maintaining significantly lower attenuation than smaller cables like RG-213 or RG-8. The cable features a thick 10 AWG solid bare copper center conductor, which ensures maximum signal conductivity and high mechanical stability for permanent outdoor or industrial installations.
To ensure maximum signal integrity in high-interference environments, RG-217 is equipped with a double-layered bare copper braided shield. This dual-shielding architecture provides exceptional RF isolation and protects against electromagnetic interference (EMI). Encased in a non-contaminating Black PVC jacket, the cable is built to resist UV radiation, moisture, and chemical exposure, ensuring a long operational life in harsh conditions. Because of its large diameter and power capacity, it is the standard for high-power broadcast links and is typically terminated with N-Type or Large-Body UHF connectors.
Key Technical Advantages
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Exceptional Power Handling: Designed to carry high-wattage RF signals safely, making it ideal for high-power radio base stations and industrial RF generators.
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Low Signal Loss: The large 10 AWG conductor minimizes signal attenuation over long cable runs, ensuring maximum signal strength reaches the antenna.
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Superior Double Shielding: Two layers of bare copper braid provide excellent shielding effectiveness, minimizing signal leakage and protecting against external RFI.
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Non-Contaminating Jacket: The specialized PVC jacket prevents environmental degradation and maintains stable electrical performance for decades in outdoor settings.
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Solid Core Stability: The solid copper conductor provides excellent dimensional stability, ensuring consistent impedance and low VSWR throughout the cable’s life.
Key Features
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Cable Type: RG-217 / U Coaxial.
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Impedance: 50 Ohm.
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Center Conductor: 10 AWG (Solid Bare Copper).
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Shielding: Double Bare Copper Braid (High-density coverage).
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Jacket Materials: Non-contaminating Black PVC (Type IIA).
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Common Applications: High-power transmitters, industrial RF heating, maritime communication backbone, and commercial antenna tower links.
Technical Summary
| Parameter | Specification (Typical) |
| Impedance | 50 ± 2 Ohm |
| Outer Diameter | ~13.84 mm |
| Velocity of Propagation | 66% |
| Capacitance | ~30.8 pF/ft |
| Attenuation @ 400MHz | ~3.2 dB / 100ft |
| Operating Temp | -40°C ~ +80°C |





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