| Physical Specifications | RG58/U | RG58/U | RG58A/U | RG58C/U |
| Inner conductor | 20AWG BC | 20AWG BC | 19*0.18mm TC | 19*0.18mm TC |
| Dielectric | 2.95mm PE | 2.95mm PE | 2.95mm PE | 2.95mm PE |
| First Shield | ||||
| Second Shield | 70% TC | 95% TC | 95% TC | 95% TC |
| Jacket | 4.95mm PVC | 4.95mm PVC | 4.95mm PVC | 4.95mm PVC |
| Electrical Specifications | ||||
| Impedance | 53±2Ω | 50±2Ω | 50±2Ω | 50±2Ω |
| Nominal Velocity of propogation | 66% | 66% | 66% | 66% |
| Nominal Capacitance | 93.51pF/M | 93.51pF/M | 104.34pF/m | 101.05pF/m |
| Attenuation @ 68℉ ( 20℃) | ||||
| MHz | Max.(dB/100FT) | Max.(dB/100FT) | ||
| 1 | 0.4 | 0.4 | 0.42 | 0.42 |
| 10 | 1.2 | 1.2 | 1.5 | 1.5 |
| 50 | 2.9 | 2.9 | 3.7 | 3.7 |
| 100 | 4.2 | 4.2 | 5.4 | 5.4 |
| 200 | 6 | 6 | 8.1 | 8.1 |
| 500 | 10.17 | 10.17 | 13.96 | 13.96 |
| 1000 | 16.5 | 16.5 | 22.8 | 22.8 |
| Example of Printing: | ||||
| TIANJIECABLE ® COAXIAL CABLE RG58/U 50OHMS 3.0G **FT | ||||
