Questions about: Screw on F connector. 

Question: ON this f conector do i need anything else from the tv cable into this before screwing onto the loft box  

Response

The TV cable is inserted into the connector for connection to the unit.

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Question: do you need to strip the outer sheath off the cable before fitting the connector  

Response

This PDF should explain everything for you

http://dastv.co.uk/docs/Fit_F_Connector.pdf

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