Description
RG-58 Alloy is a specialized variant of the classic RG-58 cable, designed to offer high-reliability 50 Ohm performance with a focus on weight reduction and cost-efficiency. While maintaining the standard RG-58 form factor, this version utilizes a high-strength Aluminum Alloy braid for shielding instead of traditional tinned copper. This provides excellent protection against electromagnetic interference (EMI) while remaining significantly lighter, making it ideal for mobile applications, vehicle-mounted radios, and weight-sensitive aerospace installations.
The cable features a flexible 20 AWG stranded or solid conductor (often tinned copper or copper-clad aluminum) surrounded by a high-grade polyethylene (PE) dielectric. This construction ensures consistent impedance and low signal reflection across common VHF and UHF frequencies. Housed in a flexible, UV-resistant PVC jacket, the RG-58 Alloy cable is easy to route through tight spaces and stands up well to environmental exposure. It is most commonly terminated with BNC, TNC, or PL-259 connectors.
Key Technical Advantages
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Lightweight Alloy Construction: The aluminum alloy shielding reduces the overall weight of the cable, making it easier to handle and ideal for mobile and portable RF systems.
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Cost-Effective RF Solution: Provides a budget-friendly alternative for high-volume installations without sacrificing essential signal protection or performance.
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Flexible and Easy to Install: The high-flexibility jacket and stranded core allow for tight bending radii, perfect for routing through vehicle interiors or equipment racks.
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Consistent 50 Ohm Impedance: Precision-manufactured to ensure a stable impedance profile, minimizing VSWR and protecting sensitive radio equipment from power reflections.
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Broad Frequency Utility: Effectively supports signals from DC up to 1GHz, making it a “workhorse” cable for 2-way radios, WLAN, and basic RF testing.
Key Features
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Cable Type: RG-58 / U Alloy Coaxial.
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Impedance: 50 Ohm.
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Center Conductor: 20 AWG (Stranded Tinned Copper or CCA).
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Shielding: Aluminum Alloy Braid (High-coverage).
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Jacket Materials: Flexible PVC (Standard) or UV-Resistant PE.
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Common Applications: Two-way radio (HAM/CB), mobile antenna systems, WLAN pigtails, and test bench patch cables.
Technical Summary
| Parameter | Specification (Typical) |
| Impedance | 50 ± 2 Ohm |
| Center Conductor | 20 AWG (~0.81mm – 0.90mm) |
| Velocity of Propagation | 66% – 70% |
| Capacitance | ~26.5 pF/ft |
| Attenuation @ 400MHz | ~11.5 dB / 100ft |
| Operating Temp | -30°C ~ +75°C |
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