Ultra Low Loss 18 GHz Precision Test Coaxial Cable with PFA Jacket – Model CFS800

High-Power, Ultra-Low-Loss Coaxial Cable for Precision RF Testing

The CFS800 ultra-low-loss precision test coaxial cable is engineered for high-power and high-frequency RF measurement systems demanding exceptional phase stability and minimal attenuation. Operating up to 18 GHz with a 50 Ω impedance, it ensures long-term repeatability and accuracy for metrology-grade test and calibration environments. Fully REACH and RoHS compliant, it combines electrical precision with environmental responsibility for advanced laboratory and industrial applications.

Low Attenuation and High Phase Stability

The CFS800 coaxial cable integrates a solid silver-plated copper inner conductor and LD-PTFE dielectric to achieve outstanding impedance consistency and low insertion loss. Attenuation remains exceptionally low—only 0.148 dB/m @ 1 GHz and 0.670 dB/m @ 18 GHz—while supporting an impressive average power capacity of 1.8 kW @ 1 GHz and up to 5.8 kW @ 100 MHz. Phase stability is maintained within ± 2° @ 10 GHz and ± 3° @ 18 GHz, with thermal drift under 750 PPM from –55 °C to +85 °C, ensuring consistent performance across temperature variations.

Robust Mechanical Design and Shielding Integrity

Encased in a 7.90 mm PFA jacket, the CFS800 cable delivers excellent flexibility, heat resistance, and abrasion protection while maintaining stable electrical performance through repeated use. Dual silver-plated copper shields provide > 90 dB shielding effectiveness, ensuring strong EMI immunity and phase accuracy even under mechanical movement. The cable supports 2500 VDC voltage withstand and features a 39 mm single-bend radius / 79 mm repeated-bend radius at 130 g/m weight, offering a balanced structure for precision RF test setups.

Applications Requiring High Power and Long-Term Accuracy

The CFS800 ultra-low-loss coaxial cable is ideal for vector network analyzer (VNA) calibration, radar validation, satellite communication testing, and microwave power transmission systems requiring stable phase and low insertion loss. Its high power capacity and mechanical durability make it a trusted solution for both fixed and flexible precision measurement setups. For other high-precision models, explore the Precision Test Coaxial Cable Series by Mechanc.

Manufactured by Mechanc Shanghai Information Technology Co., Ltd., the CFS800 ultra-low-loss precision test coaxial cable delivers consistent phase integrity, high power endurance, and verified REACH and RoHS compliance—providing reliable, metrology-grade accuracy for advanced RF and microwave testing systems.

Explore the full Ultra-Low-Loss CFS Series.