If it were me I woulda demanded they replaced all wires when installed unless it was a complex issue, I dont think it could hurt at all to increase those cables.
Replace Coax Cable or not?
I have Direct TV installed using the existing RG6 dual shield coax cable already in the walls. There are 4 RG6 coax cables rated at 2.2ghz from the dish to the basement where all of the room RG6 cables home run to.The RG6 cables that are already in the home are rated for only 1ghz. Will I get a better picture if the existing 1ghz cables are replaced with 2.2ghz cables? The picture is better with the satellite vs CATV but not as good as others I have seen with Direct TV.The HD channels vary depending on the programing.All other channels are always about the same.