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RG-58A/U cable design
Structurally, the RG-58A/U cable consists of:
- central conductor: copper monocore with a diameter of 0,8 mm
- dielectric: integral polyethylene
- first shielding layer: aluminum polyester tape
- second shielding layer: tinned copper braid with 90% filling
- outer protective shell made of PVC plastic with a diameter of 4,95 mm
Electrical characteristics of the RG-58A/U cable
Wave resistance: 50±2 Ohm
Linear capacitance: 100 pF/m
Relative speed: 66%
Shortening factor: 1,51
Insulation resistance at 20ºС: ≥ 5000 MΩ/km
Direct current resistance:
– Inner conductor: ≤ 34,2 Ohm/km
– External conductor: ≤ 22,1 Ohm/km
Maximum power at 1 GHz: 200 W
Losses in RG-58A/U cables
| Frequency, MHz | Attenuation, dB/100m |
| 10 | 4,1 |
| 100 | 11,9 |
| 1000 | 42,44 |
Mechanical characteristics of the RG-58A/U cable
Installation temperature range: -10...+50o С
Operating temperature range: -20...+60o С
Curb weight: 35,5 kg/km
Packaging and labeling
The cable is supplied in coils with a nominal length of 100 m.
On request, it is possible to cut the RG-58A/U cable into shorter lengths.
Compatibility and analogues
The RG-58A/U coaxial cable is included in the G1 cable group and is similar in size to the following widely used types of HF coaxial cables: RG-58C/U, 7806A, 9907, CNT-195, HPF 195, KX 15, LMR-WCX195, 195D-FB.
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