"F" type:
Screw on for Satellite TV
"F" type couplers:
For extending Satellite cable etc
Coax Plugs: For
Terrestrial TV cable
Coax plug coupler: For
extending Terrestrial TV cable etc
NB: The "F" type
connectors and couplers allow good screening properties and maintain the
electrical connection required. If in doubt use the "F" type for
extending Terrestrial TV cable as well.