Which cable should i use RG 6 OR RG 7 for HD DIRECTV and digital antenna

[sdparrish]

We are changing out our old RG59 cable. We have DIRECTV AND a Digital TV antenna.
Should I use RG6, RG& or something else?
Thanks!
Susan

 

[americanaudiophile]

I believe DTV uses RG6. An over the air antenna would need 75ohm cable. RG8 is 50 ohm so go RG6 for both. It comes is dual or quad shield version. If you have a lot of RF interference in your neighborhood the quad shield is the way to go.