Hi guys

im looking to setup another box upstairs

Downstairs will be an F5s & upstairs will be an F3

i have an input TV ariel port down stairs & an output TV ariel port upstairs

Can i just connect the cable from the F5s loop to the Tv ariel port then connect a cable from the Tv ariel port to F3 box upstairs?
If i do this would i still need to connect an ethernet cable to the second box upstairs?

Thank for any help given
Paddi23