| Revision as of 20:39, 14 December 2013 editGraeme Bartlett (talk | contribs)Administrators249,755 edits Undid revision 586047340 by 69.178.195.59 (talk) these categories do not exist. If the connector has these hazards, write about them in the the text.← Previous edit | Revision as of 05:17, 4 March 2014 edit undoGimmeallyourmoney (talk | contribs)221 editsNo edit summaryNext edit → | ||
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| The '''F connector''' is a ] ] commonly used for "over the air" ], ] and universally for ] and ], usually with ] or, in older installations, with ]. It was invented by Eric E. Winston in the early 1950s while working for ] on their development of cable television. In the 1970s it became commonplace on VHF television antenna connections, as coaxial cables replaced ], and later for UHF also. | The '''F connector''' is a ] ] commonly used for "over the air" ], ] and universally for ] and ], usually with ] or, in older installations, with ]. It was invented by Eric E. Winston in the early 1950s while working for ] on their development of cable television. In the 1970s it became commonplace on VHF television antenna connections, as coaxial cables replaced ], and later for UHF also. | ||
| The F connector is inexpensive, yet has good 75 Ω ] up to 1 GHz {{cn|date=November 2013}}{{dubious|date=November 2013}} and has usable ] up to several GHz. One reason for its low cost is that it uses the solid conductor (center wire) of the specified types of ] 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 ], or sometimes screwed, on to the exposed outer braid. The cable industry standard now is to use compression fittings.{{cn|date=October 2013}} Female connectors have a 3/8-32 ] (9.525mm diameter). Most male connectors have a matching threaded connecting ring, though push-on versions are also available. Push-on F connector ends provide poor shielding against airborne signals (e.g., a nearby TV |
The F connector is inexpensive, yet has good 75 Ω ] up to 1 GHz {{cn|date=November 2013}}{{dubious|date=November 2013}} and has usable ] up to several GHz. One reason for its low cost is that it uses the solid conductor (center wire) of the specified types of ] 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 ], or sometimes screwed, on to the exposed outer braid. The cable industry standard now is to use compression fittings.{{cn|date=October 2013}} Female connectors have a 3/8-32 ] (9.525mm diameter). Most male connectors have a matching threaded connecting ring, though push-on versions are also available. Push-on F connector ends provide poor shielding against airborne signals (e.g., a nearby TV and Cell Phone transmitters and will interfere with a CATV station).{{cn|date=March 3, 2014}} | ||
| It is suitable for domestic terrestrial, cable, and satellite TV installations and offers significant improvements over the ] (IEC 169-2) used on European terrestrial receivers. It requires slightly more care to properly install the male connector to the cable than with Belling-Lee type and attention should always be paid to the quality of the connector and matching with the cable size. | It is suitable for domestic terrestrial, cable, and satellite TV installations and offers significant improvements over the ] (IEC 169-2) used on European terrestrial receivers. It requires slightly more care to properly install the male connector to the cable than with Belling-Lee type and attention should always be paid to the quality of the connector and matching with the cable size. | ||
Revision as of 05:17, 4 March 2014
 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (April 2012) (Learn how and when to remove this message) |
 Male F Connector (screwed) | |||
| Type | RF coaxial connector | ||
|---|---|---|---|
| Production history | |||
| Designer | Eric E. Winston | ||
| Designed | Early 1950s | ||
| Manufacturer | Various | ||
| General specifications | |||
| Diameter |
Male: 0.4375 in (1.111 cm) or 7/16" hex Female: 0.335 in (0.85 cm) (outer, typical) | ||
| Cable | Coaxial | ||
| Passband | Typically 0-1 GHz | ||
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. It 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, as coaxial cables replaced twin-lead, and later for UHF also.
The F connector is inexpensive, yet has good 75 Ω impedance match up to 1 GHz and has usable bandwidth up to several GHz. One reason for its low cost is that it 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, on to the exposed outer braid. The cable industry standard now is to use compression fittings. Female connectors have a 3/8-32 UNEF thread (9.525mm diameter). Most male connectors have a matching threaded connecting ring, though push-on versions are also available. Push-on F connector ends provide poor shielding against airborne signals (e.g., a nearby TV and Cell Phone transmitters and will interfere with a CATV station).
It is suitable for domestic terrestrial, cable, and satellite TV installations and offers significant improvements over the Belling-Lee connector (IEC 169-2) used on European terrestrial receivers. It requires slightly more care to properly install the male connector to the cable than with Belling-Lee type and attention should always be paid to the quality of the connector and matching with the cable size.
See also
References
- “F” Port (Female Indoor) Physical Dimensions, ANSI/SCTE 02 2006 (see www.scte.org).
- International standard IEC 60169-24: Radio-frequency coaxial connectors with screw coupling, typically for use in 75 Ω cable distribution systems (Type F). (non-free content)
External links
| RF connectors (coaxial) | |
|---|---|
| Audio and video connectors | |
|---|---|
| Analog audio | |
| Digital audio | |
| Video | |
| Audio and video | |
| Visual charts | |
| General-purpose | |