SFL Rock SStable® Spiral Flex Coaxial Cable

Construction:

Center conductor: Stranded silver plated copper

Dielectric: Solid PTFE

Inner braid: Spiral silver plated copper strip

Outer braid: Round silver plated copper

Jacket: Solid light blue specially formulated compound

Velocity of Propagation: 70%

Shielding Effectiveness: <-110 dB

Harbour’s SFL Spiral Flex™ coaxial cables, more flexible and supple versions of the industry standard SS Spiral Strip constructions, have been designed with a specially formulated 105ºC jacket compound and stranded silver plated copper center conductors. These 50 ohm versions exhibit VSWR levels that meet or exceed similar size flexible constructions, and just like their SS cable counterparts, offer excellent shielding effectiveness with readily available connectors.

Although the insertion loss is slightly higher than their SS cable counterparts, SFL attenuation levels through 18 GHz are substantially lower than comparable MIL-DTL-17 constructions.

Attenuation Calculation and K Factors Although typical and maximum attenuation values are given for discrete frequencies, typical attenuation values may be calculated by using K1 and K2 factors for each construction. The K1 factor is calculated by taking into consideration the type, strand factor, and diameter of the center conductor, and the impedance of the cable. The K2 factor is calculated by taking into consideration the velocity of propogation and the dissipation factor of the dielectric.

SFL SStable®螺旋的Flex同軸電纜
結構：
中心導體：多股鍍銀銅
介質：固體PTFE
內蒙古編織：螺旋鍍銀銅條
外編織：圓形鍍銀銅
外套：固體淺藍色專門配製的化合物
傳播速率：70％
屏蔽效能：<-110分貝
Harbour的SFL螺旋的Flex™同軸電纜，行業標準SS螺旋鋼帶結構更加靈活和柔軟的版本中，已經設計了一種專門配製的105℃護套料而擱淺鍍銀銅的中心導體。這些50歐姆的版本呈現，達到或超過同樣大小的靈活結構，以及就像他們的SS電纜同行，提供有現成的連接器卓越的屏蔽效能VSWR水平。

儘管插入損耗比它們的SS電纜同行略高，通過18千兆赫SFL衰減水平比可比MIL-DTL-17的結構基本上更低。
衰減計算與雖然典型和最大衰減值K係數是給出了離散頻率，

典型的衰減值可通過使用K1和K2因子為每個施工來計算。該K1因子由考慮到的類型，鏈因子，以及中心導體的直徑，電纜的阻抗計算出的。 K2的係數是通過考慮到傳播史的速度和電介質的損耗因數計算出的。

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