I wasn't aware of coax usage other than for TV. I guess I assumed that twisted-pair cables were far superior for data transmission, but maybe not?
I recently moved in to a home that has been pre-wired with Cat5 and also coax to each room. The wiring was left unterminated but I assumed the coax was just meant for TV reception. But I did discover there is a second coax cable that has been left unterminated at both ends and I wonder if this is meant for data? I really don't like not knowing but I'm unable to get hold of the people who did the wiring during lockdown!
A typical satellite receiver has two or sometimes three coax connections to the dish (or to the inhouse distribution platform). They could have built for that.
Or it's a spare pull in case the cable fails mid span. Or to be able to get cable + antenna. Or to be able to use a centrallized powered splitter for two uses at one location, which would be better than using another splitter in the room, but probably not needed.
I recently moved in to a home that has been pre-wired with Cat5 and also coax to each room. The wiring was left unterminated but I assumed the coax was just meant for TV reception. But I did discover there is a second coax cable that has been left unterminated at both ends and I wonder if this is meant for data? I really don't like not knowing but I'm unable to get hold of the people who did the wiring during lockdown!