SRFS Teleinfra

FU 800 Ultra-Flexible Phase Stable Low Loss RF Cable

FU 800 Ultra-Flexible Phase Stable Low Loss RF Cable

The Ultra-Flexible Phase Stable Low Loss Cable FU 800 is a high-performance RF cable designed for precision signal transmission in demanding test, measurement, and communication applications. Its ultra-flexible construction enables easy routing and repeated movement while maintaining reliable electrical performance. The phase-stable design helps provide consistent phase characteristics during cable flexing, while its low-loss construction supports efficient high-frequency signal transmission. FU 800 is suitable for network analyzers, RF test equipment, antenna measurement systems, microwave communication equipment, laboratories, and advanced wireless applications requiring flexibility, stability, low insertion loss, and dependable signal integrity.

Cable Construction

No. Construction Size (mm) Materials
1 Center Conductor 2.30 Stranded silver plated copper
2 Dielectric 6.00 Low density PTFE
3 Outer Conductor 6.33 Silver plated copper strip wrapping
4 Interlayer 6.60 PTFE
5 Outer Shield 7.05 Silver plated copper wire braiding
6 Jacket 7.70 FEP

Electrical

Frequency DC-18 GHz
Impedance 50 Ω
Velocity of Propagation 83%
Shielding Effectiveness >90 dB
Withstanding Voltage 2500 V
*Mechanical Phase Stability <±5°
Amplitude Stability vs Shaking <±0.15 dB
Temp Phase Stability <500ppm(-40°C to +85°C)
* Wrapped 360° around a 80mm radius mandrel.

Mechanical & Environmental

Min. Bending Radius Static 44mm
Min. Bending Radius Repeated 88mm
Velocity of Propagation 76%
Flex Life Min 15000 cycles
Temperature (Operation) -50~85 °C
Temperature (Storage) -60~85 °C

Bulk Cable Attenuation

Frequency MHz 300 1000 2000 3000 6000 8000 10000 12000 14000 16000 18000
dB/100 Meter 9.8 18.1 25.9 31.9 45.8 53.4 60.1 66.2 71.9 77.3 82.4
Avg. Power kW 3.340 1.811 1.269 1.029 0.717 0.616 0.547 0.496 0.457 0.425 0.399