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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.
nerspellsner
avguygeorge
2,300 posts
 
I have 9 year old wire to my D* box and brand new wire to my Voom box. PQ is equal. Some stations look better than others .---Some HD looks more like SD while some SD looks closer to HD. It depends on the station or movie. One of the reasons for poor hd Q is they just up convert and THAT looks bad.Stuff shot in 1080i looks great--While stuff up-converted looks bad. I find there is a correllation between what the dvd looked like; and how it looks on your screen; as a sat. movie.
chadnliz
3,736 posts
 
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.
bob_bundus
1,834 posts
 
Perform an easy comparison experiment. Fabricate a equal-length 2.2G cable: the same length as one of your original 1G runs. Then temporary connect it; just run it across the floor or through a window, whatever. Switch the cables back & forth over a few days time for comparisons on all channels, especially the higher-frequencies.
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