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RG7


Coaxial Cable RG7U-Series
Physical Characteristics
Item Material Standard  Shield Tri-Shield Super-Shield
Inche mm Inche mm Inche mm
Center Conductor Diameter CU/CCS 0.051 1.30 0.051 1.30 0.051 1.30
Diameter Over Dielectric Foamed PE 0.225 5.72 0.225 5.72 0.225 5.72
Diameter Over Jacket PVC/PE 0.319 8.08 0.323 8.20 0.338 8.59
Outer Conductor Structure Copper,    Tin plating Copper or Aluminum  AL foil(bonded ORunbonded)+Braid Coverage  40%,50%  Etc      double AL foil Braid Coverage 40%,50% ,60%  Etc
Electrical  Characteristics
Impedance 75±3.0 Ohms
Capacitance 54±3.0(pF/m)
Velocity of Propagation 85%
Return Loss(dB) VHF5-300MHz 22dB
UHF300-960MHz 20dB
Screening  Efficiency(dB) VHF5-50MHz 85dB
UHF200MHz Upward 90dB
Attenuation[@68°F. (20)]
Frequency(MHz) Maximum(dB/100ft) Maximum(dB/100m)
5 0.47 1.54
55 1.25 4.10
83 1.50 4.92
187 2.22 7.28
211 2.36 7.74
250 2.56 8.40
300 2.82 9.25
350 3.05 10.01
400 3.27 10.73
450 3.46 11.35
500 3.67 12.04
550 3.85 12.63
600 4.05 13.28
750 4.57 14.99
865 4.93 16.17
1000 5.32 17.45

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