The F connector or F-type connector is a form of coax cable connector that is widely used with domestic television equipment.The F connector is cheap and can perform to frequencies in excess of 2 GHz making it ideal for terrestrial and satellite links between antennas / down-converters or LNBs and the television itself.
In Europe, cables for down-converted satellite signals that fall between 950–2150 MHz from LNBs and DC power and block signalling from satellite receivers exclusively use F connectors.
The connector is usually used with RG-6/U cable, although it can also be used with the older RG-59/U cable.
The F type connector provides some significant improvements over the Belling Lee connectors (IEC 61169 part 2) that are widely used in Europe. These connectors were developed around 1922 and naturally their performance is not up to that of UHF TV.
F connector development
The F connector was developed in the USA in the 1950s by Eric E Winston of Jerrold Electronics, a company that was developing equipment for the domestic TV cable market.
The connector became widely adopted for VHF and then UHF television in the USA. It was cheap and performed well within domestic TV situations.
With the globalisation of TV equipment, and the wider adopting of satellite TV, the connector has come into more global use, first for satellite TV and then for terrestrial TV cables.
With its increased use it has been standardised by the International Electrotechnical Commission under its standard IEC 60169 which standardised radio frequency connectors.