RG-58
RG-58/Uis a type ofcoaxial cableoften used for low-power signal andRFconnections. The cable has acharacteristic impedanceof either 50 or 52Ω."RG" was originally a unit indicator for bulk RF cable in the U.S. military'sJoint Electronics Type Designation System.There are several versions covering the differences in core material (solid or braided wire) and shield (70% to 95% coverage).
The outside diameter of RG-58 is around 0.2 inches (5 mm). RG-58 weighs around 0.025 lb/ft (37 g/m), exhibits approximately 25 pF/ft (82 pF/m) capacitance and can tolerate a maximum of 300 V potential (1800 W).[1] Plain RG-58 cable has a solid center conductor. The RG-58A/U features a flexible 7- or 19-strand center conductor.
Mosttwo-way radiocommunication systems, such as marine,CB radio,amateur,police, fire,WLANantennas etc., are designed to work with a 50 Ω cable.
RG-58 cable is often used as a generic carrier of signals in laboratories, combined withBNC connectorsthat are common on test and measurement equipment such asoscilloscopes.
RG-58 in versions RG-58A/U or RG-58C/U was once widely used in "thin"Ethernet(10BASE2), for which it provides a maximum segment length of 185 meters. However, it has been almost completely replaced by twisted-pair cabling such asCat 5,Cat 6,and similar cables in data networking applications.
RG-58 cable can be used for moderately high frequencies. Its signal attenuation depends on the frequency, e.g. from 10.8 dB per 100 m (3.3 dB per 100 feet) at 50 MHz to 70.5 dB per 100 m (21.5 dB per 100 feet) at 1 GHz.[2]
See also
[edit]- RG-59—A similar cable but with an impedance of 75 Ω
- Coaxial cable
- BNC connector—common connector for RG-58 cables
References
[edit]- ^"RG Coaxial and Triaxial Reference Guide"(PDF).Archived fromthe original(PDF)on 2012-05-11.Retrieved2012-06-24.
- ^Coaxial Cable Loss and Dynamicsby Benton County ARES/RACES. Archived from the original on 20 Feb. 2020
 | This electronics-related article is astub.You can help Wikipedia byexpanding it. |