Booster cable connector

Poshman

Advice needed from the TV experts. I have just taken delivery of a new 2014 Lunar Clubman that has an external satellite ariel point. I am not bothered about satellite TV. At the handover, the guy explaining how everything operated said that the booster
cable you plug in at some Caravan Club sites (like Chatsworth) can be connected with a gadget to this external satellite point and so eliminating the need to feed the booster cable to the TV through a window.

Can anyone confirm that this little connector is called an 'F connector to coaxial socket' and costs just a few pounds from mail order caravan stores and places like Screwfix? If it is, I guess I'll need a second similar connector for the internal satellite
point.