RG - 58 - Wikipedia RG - 58 Main article : Coaxial cable RG - 58 / U is a type of coaxial cable often used for low - power signal and RF connections. The cable has a characteristic impedance of either 50 or 52 Ω. `` RG '' was originally a unit indicator for bulk RF cable in the U.S. military 's Joint 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 ). Plain RG - 58 cable has a solid center conductor. The RG - 58A / U features a flexible 7 - or 19 - strand center conductor. Most two - way radio communication systems, such as marine, CB radio, amateur, police, fire, WLAN antennas 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 with BNC connectors that are common on test and measurement equipment such as oscilloscopes. 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 as Cat 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. See also RG - 59 -- A similar cable but with an impedance of 75 Ω Coaxial cable BNC connector -- common connector for RG - 58 cables References Jump up ^ RG Coaxial and Triaxial Reference Guide Jump up ^ Coaxial Cable Loss and Dynamics by Benton County ARES / RACES This electronics - related article is a stub. You can help Wikipedia by expanding it. Retrieved from `` https://en.wikipedia.org/w/index.php?title=RG-58&oldid=787535566 '' Categories : Signal cables Transmission lines Electronics stubs Talk About Wikipedia Deutsch Italiano Edit links This page was last edited on 25 June 2017, at 23 : 15. About Wikipedia

Question: what is considered the maximum length of an rg58 segment
Answer: 185 meters