F connector - wikipedia F connector This article includes a list of references, but its sources remain unclear because it has insufficient inline citations. Please help to improve this article by introducing more precise citations. ( April 2012 ) F connector Male F Connector ( threaded ) Type RF coaxial connector Production history Designer Eric E. Winston Designed Early 1950s Manufacturer Various General specifications Diameter Male ⁄ in ( 11 mm ) circ. or hex. Female ⁄ in ( 9.5 mm ) external threads Cable Coaxial Passband Typically DC to 750 MHz ( 2.2 GHz possible ) The F connector is a coaxial RF connector commonly used for `` over the air '' terrestrial television, cable television and universally for satellite television and cable modems, usually with RG - 6 / U cable or, in older installations, with RG - 59 / U cable. The F connector was invented by Eric E. Winston in the early 1950s while working for Jerrold Electronics on their development of cable television. In the 1970s it became commonplace on VHF television antenna connections in the United States, as coaxial cables replaced twin - lead, and later for UHF also. The F connector is inexpensive, yet has good 75 Ω impedance match for frequencies well over 1 GHz and has usable bandwidth up to several GHz. One reason for its low cost is that it commonly uses the solid conductor ( center wire ) of the specified types of coaxial cable as the pin of the male connector. This design is subject to the surface properties of the inner conductor ( which must be solid wire ) and is not corrosion resistant ; hence waterproof versions are needed for outside use ( for example, on aerials ). Corrosion resistance can be improved by coating all bare copper wires with silicone grease. The male connector body is typically crimped, or sometimes screwed, onto the exposed outer braid. Female F Type connectors have an external 3 / 8 - 32 UNEF thread ( 9.5 mm diameter ). Most male connectors have a matching internally threaded connecting ring, though push - on versions are also available. Contents 1 Usage 2 Weatherproof & Flex F connectors 3 See also 4 References 5 Further reading 6 External links Usage The cable and satellite television entities ( as a near standard practice ) use compression fittings with F Type Connectors on customer premises. F Type Coax connectors are probably the most suitable for domestic terrestrial, cable, and satellite TV installations where the delivery of very high frequency information is required. Belling - Lee connectors ( IEC 169 - 2 ) ( used on European terrestrial receivers ) are not well suited for long haul building delivery of frequencies above 500 MHz, because the standard was designed around tube receivers and Mediumwave ( or Shortwave ) antennas ( but workarounds exist ) ( 2 ). Type F Connectors require slightly more care to properly install the Male connectors to the cable than the Belling - Lee type, with the exception of compression or flex type connections. Weatherproof & Flex F connectors Some component suppliers have in their catalog weatherproof ( watertight ) `` F connectors ''. Tightness is achieved by inserting an O - ring of about 7 mm between the plug and the socket before tightening, making the union watertight. Push - on ( aka Flex ) F Type connectors provide poorer shielding against microwave signals of high field strength. This leakage problem is more an artifact of bent or partly broken push on connectors, but is mostly not observed with compression connectors. Nearby television, FM radio, mobile & cordless phones, government radiolocation ( 54 -- 1,002 MHz ) transmitters can potentially interfere with a CATV or DTH Satellite reception or operation if the Flex connector poorly installed. F connectors attached to a 4 way DiSEqC switch. A visual collection of standard and right angle F Type Coax connectors, a commonly used but less documented form of the F connector. See also Belling - Lee connector Coaxial cable Component video Composite video Diplexer RCA connector Satellite dish TV aerial plug MCX connector References Jump up ^ Electrical Connector. US Patent 3,537,065 by Eric Winston Jump up ^ IEC 60169 - 24 : `` Radio - frequency connectors - Part 24 : Sectional specification - Radio frequency coaxial connectors with screw coupling, typically for use in 75 Ω cable networks ( type F ). '' ( 2009 ) ( 1 ) Jump up ^ Cityfreq United States Scanner Frequencies, Phone Numbers, and IP Addresses. Further reading `` F '' Port ( Female Indoor ) Physical Dimensions, ANSI / SCTE 02 2015 ( see www.scte.org ). External links Compression Tool for crimping Antenna - cables&connectors RF connectors ( coaxial ) 7 / 16 DIN APC - 7 BNC Belling - Lee connector Type F FME Hirose U. FL Hirose W. FL IPX Motorola MCX Microdot MMCX QLS QMA / QN RCA SHV SMA SMB SMC TNC TV aerial plug UHF / Mini-UHF Variations and alternate names 10 - 32 2.9 mm ( SMA ) 7 mm AMC ( UFL ) IPEX MHF RP - SMA RP - TNC SnapN Triax / Triaxial Twin BNC / Twinax ( BNC ) Old or seldom used EIA GR LEMO 00 Musa See also Audio and video connectors Audio and video interfaces and connectors Radio frequency Radio spectrum Audio and video connectors Analog audio Banana plug Binding post D - subminiature Euroblock DIN Mini-DIN Jack plug RCA Speaker spring terminal Speakon XLR Digital audio BNC D - sub S / PDIF TOSLINK XLR Video BNC Component RGB Component YPbPr Composite video D - Terminal DB13W3 DFP DIN Mini-DIN DMS - 59 LFH DVI Mini-DVI Micro-DVI RCA S - Video VGA Mini-VGA Audio and Video ADC Belling - Lee EVC Type F HDBaseT HDMI DisplayPort mDP MHL ( superMHL ) Minijack P&D PDMI SCART Thunderbolt Visual charts List of video connectors Other USB Retrieved from `` https://en.wikipedia.org/w/index.php?title=F_connector&oldid=800881706 '' Categories : Coaxial connectors Television technology Hidden categories : Articles lacking in - text citations from April 2012 All articles lacking in - text citations Talk Contents About Wikipedia Català Čeština Deutsch Eesti Español فارسی Français Bahasa Melayu 日本 語 Polski Suomi Svenska Türkçe 中文 Edit links This page was last edited on 16 September 2017, at 07 : 48. 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Question: what type of coaxial fitting is commonly used for cable tv
Answer: F connector