Questions about moving Xfinity Modem to a different room

[sheva76]

I am looking to move our Xfinity modem into a different room. The room has an outlet for the phone line and the coaxial line. The issue I am having is that where our signal comes in, it is connected to a 1:3 splitter which are for two tv's and one for the internet connection. The problem is that we have about 6 unattached cables there for all the different rooms and none of them have a coaxial connector on the end. Is there any suggested way of figuring out which of these 6 cables is the one for the room we want without putting a coaxial connector on each one and testing it? Are there any problems I might have with moving it as far as signal strength coming through the cable? I believe it shouldn't be any different since there are no further splitters that it would go through as far as I know.

Thank you in advance for any help or suggestions you might have!

 

[kanewolf]

On the end with no "F" fittings, use an wire to short out the center and braid. Screw a short coax cable to the wall in the room and check for a short between the center and outside of the F fitting with an ohm meter. Move the shorting jumper until you either eliminate all the cables or find the right one.