I am trying to sort out my neighbour’s Foxsat HDR. She cannot get any channels: the channel search states no signal. By accident when I removed one of the co-ax connections on the back, I touched the central lead against the outer screw thread of the socket. Lo: a signal. complete picture and sound. I have subsequently tried my box on her aerial and her box on my aerial. Both boxes work on my aerial but only work on hers if I touch the centre lead against the socket thread. I have a satellite finder beeper which, when connected to her co-ax shows a strong signal. What is going on?
The inner and outer cores must make a good electrical circuit. The inner should fit in centre of the F connector and the outer braid or foil must connect with the outside of the F connector. Google fitting an F connector.
No part of the braid or foil must touch the inner core or it will short the connection.
You don’t need the grease for indoor connectors. The F connector should be tight fit on the coax outer covering. If it’s loose it’s the wrong size for the cable.