Hi again @BoRRoZ, I should have added that if you are installing an ethernet copper cable from indoors to equipment with an antenna outdoors on the roof then you really need to include an ethernet lightning arrestor. See the picture below for an example. The arrestor needs to go indoors and be grounded into your building’s electrical safety ground. Otherwise you risk an electric storm frying your router, other stuff and yourself.
I buy these online from Amazon by searching “ethernet lightning arrestor”. I only buy the direct Amazon ones. I don’t think that this is something that I would buy from any website where I didn’t trust the quality.