This in not uncommon and isn’t releated to Direct TV. I have Comcast and have the same problem, although with other stations. And I believe others have mentioned similar problems with other providers. I’ve simply learned to live with it; not that hard considering I don’t watch much TV.
Well, actually, I gotta believe it *is* related to DirecTV, even if it is not isolated to their equipment. It’s not my TV that causes the volume altnations. Nor is it my DirecTV box or dish. If that were the case, the volume would not be selective to individual channels, and ir would not have volume spikes on TV commercials. It would not make my local channels that I get from DirecTV my loudest channels, as my local reception is lousy. It’s not my multiplexor/switch, as it’s powered, and the problem duplicates on all out feeds.
This is going on, either by the channels sending a low volume feed to DirecTV that they pass on to the satellite, or when the channel signals get to DirecTV, they are not being equally boosted, before being beamed up to the sattelite.
It seems ulikely that it is a matter of weekend transponders, or otherwise the video for the channels would be equally weak.
At least that is my assessment, from the outside, as it were.
Andf if my assessment is correct, it is something that can be fixed “on the ground”, without involving any “work” or replacement to the sattelite system.