Davis RF-9913 LL 50 OHM Coax
Davis RF's 9913 Low-Loss coaxial cable is designed for applications requiring minimal signal loss and high power handling, particularly in VHF/UHF frequencies. This cable features a solid 9.5 AWG (approximately 0.108 inches) bare copper center conductor, providing excellent conductivity. It utilizes an air dielectric with a spiral-wrapped polyethylene (PE) structure, contributing to its low attenuation characteristics. The shielding consists of an 88% tinned copper braid combined with a 100% foil shield, ensuring effective protection against electromagnetic interference. The cable is encased in a 0.405-inch diameter PVC jacket, offering durability and flexibility. In terms of electrical performance, the 9913 cable has a characteristic impedance of 50 ohms and a capacitance of 24.0 pF/ft. It boasts a velocity of propagation of 84%, indicating efficient signal transmission. The attenuation values per 100 feet are as follows: - 10 MHz: 0.4 dB
- 50 MHz: 0.9 dB
- 100 MHz: 1.4 dB
- 200 MHz: 1.8 dB
- 400 MHz: 2.6 dB
- 700 MHz: 3.6 dB
- 900 MHz: 4.1 dB
- 1000 MHz: 4.4 dB
These low attenuation figures make the 9913 cable suitable for applications where preserving signal integrity over longer distances is crucial
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