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Help CenterRG58 Coaxial Cable for Low-power Signal and RF Connections
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RG58 Series Coaxial cable specifications
Physical Specifications
Nominal Dimensions | Standard RG58 A/U | Tri-shielding RG58 B/U | Quad-shielding RG58 B/U |
Conductor | 0.94 mm( 0.037 in) | 19*0.18mm | 19*0.18mm |
Dielectric | 2.95mm(0.225 in) | 2.95mm(0.225 in) | 2.95mm(0.225 in) |
Shielding 1 | Al /Pet foil | Bonded Al /Pet foil | Bonded Al /Pet foil |
Shielding 2 | 0.12mm*48 (40% coverage) | 0.12mm*64 (60% coverage) | 0.12mm*96 (90% coverage) |
Shielding 3 | - | Al /Pet foil | Al /Pet/Al foil |
Shielding 4 | - |
| 0.12mm*48 ( 40% coverage) |
Jacket | 4.95mm( 0.195 in) | 8.1mm( 0.319 in) | 5.35mm( 0.21 in) |
Messenger | 1.3mm (0.051 in) Zinc plated steel | ||
Mechanical Characteristics
Mechanical Breaking Strength of Messenger 0.051 inch 185lbs. 823 N
Electrical Characteristics
Impedance ( Ohms) 75±3
Nominal Capacitance (pF/m) 53
Velocity of Propagation 85%
Structural return loss (Db)≥ VHF 22
UHF 20
Attenuation [@68F.(20Degree centigrade)]
Frequency Mhz | dB/100 ft | dB/100 M |
30 | 1.90 | 6.30 |
50 | 2.46 | 8.10 |
150 | 4.30 | 14.10 |
220 | 5.20 | 17.10 |
450 | 7.50 | 24.60 |
900 | 10.70 | 35.00 |
1500 | 13.40 | 45.60 |
2000 | 16.10 | 53.00 |
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