RG211 High-Power Coaxial Cable

M17/72-RG211 | 50Ω | 7000 VRMS | 26 kW @ 0.1 GHz | 250°C Continuous

The RG211 is engineered for the most demanding high-power, high-voltage, low-frequency RF applications. With a massive 4.88 mm solid bare copper inner conductor, a 16.7 mm bare copper braid, and a glass fiber braided jacket with PTFE barrier, it delivers an unprecedented combination of 7000 VRMS voltage withstand, 26 kW power handling at 0.1 GHz, and 250°C continuous operation. It is a heavy-duty power transmission line designed for megawatt-class broadcast transmitters, industrial RF heating systems, high-voltage RF test benches, and plasma generation equipment.

RG211 Coax Key Features

• Single Braid of Bare Copper Wire (16.7 mm) – Robust shielding and high current-carrying capability.

• PTFE Tape Barrier – Protects the core from mechanical stress and glass fiber particles.

• Glass Fiber Braided Jacket – Continuous operation from -55°C to +250°C.

• 7000 VRMS Maximum Voltage – The highest voltage rating in its class, ideal for high-voltage transmitters and RF heating.

• 26 kW Power Handling at 0.1 GHz – Unmatched power capacity for low-frequency applications.

• Massive 4.88 mm Solid Bare Copper Inner Conductor – Extremely low resistance and huge thermal mass.

• Low Attenuation – 0.027 dB/m at 0.1 GHz, 0.115 dB/m at 1.0 GHz.

• Optimized for 0.1–1 GHz – Specified to 3 GHz, but engineered for low-frequency high-power performance.

• Heavy-Duty Construction – 18.54 mm outer diameter, 767 g/m, built for fixed, permanent installations.

• MIL-DTL-17 Qualified – M17/72-RG211 reliability for mili tary and industrial systems.

RG211 Coax Construction

Why Choose Our RG211 Coax?

• Extreme Power Handling – 26 kW at 0.1 GHz and 6 kW at 1 GHz. This is one of the highest power ratings available in a 50Ω coaxial cable.

• Highest Voltage Rating – 7000 VRMS provides a robust safety margin for high-voltage transmitters, RF heating, and plasma systems.

• Massive Bare Copper Core – The 4.88 mm solid bare copper inner conductor and 16.7 mm bare copper braid deliver extremely low resistance and excellent heat dissipation.

• 250°C Continuous Operation – The glass fiber braid and PTFE barrier ensure reliable performance in extreme heat, where other cables would fail.

• PTFE Barrier Integrity – We include a critical internal PTFE tape barrier to prevent glass fiber particles from contaminating the dielectric, ensuring stable impedance and long-term reliability.

• MIL-DTL-17 Compliance – Manufactured to the rigorous M17/72-RG211 standard for defense, aerospace, and industrial reliability.

• Fixed-Installation Optimized – Built for permanent high-power runs where failure is not an option.

Applications

• Megawatt-Class Broadcast Transmitters – Shortwave, and medium-wave antenna feeds.

• Industrial RF Heating – High-power heating, drying, and welding equipment operating at HF/VHF.

• High-Voltage RF Test Systems – Transmitter test benches and high-voltage component testing.

• Plasma & Fusion Research – High-power RF generators for plasma and fusion research.

• Low-Frequency Radar & Communications – VHF and HF mili tary communication systems.

• Particle Accelerators – RF power transmission in accelerator cavities.

• Dielectric Heating – Industrial processes requiring high electric fields.