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RG8

Coaxial  Cable  RG8U-Series
Physical Characteristics
Component Inches mm
Inner Conductor Diameter 0.103 2.62
Diameter Over Dielectric 0.285 7.25
Diameter Over Outer Conductor 0.310 7.90
Diameter Over Jacket 0.404 10.30
Mechanical  and  Electrical   Characteristics
Impedance 50±2.0 Ohms
Capacitance 80(pF/m)
Velocity of Propagation 83%
Return Loss(dB) VHF5-470MHz 22dB
UHF470-862MHz 23.5dB
Screening  Efficiency(dB) VHF30-1000MHz 85dB
UHF1000MHzUpward 90dB
Attenuation[@68°F. (20)]
Frequency(MHz) Maximum(dB/100ft) Maximum(dB/100m)
10 0.05 1.3
50 0.12 3.0
100 0.17 4.3
230 0.27 6.8
300 0.30 7.7
400 0.36 9.1
470 0.39 10.0
860 0.55 14.1
1000 0.60 15.3
1350 0.72 18.3
1750 0.84 21.3
2050 0.92 23.4

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