I hope this is the right place to post this.
Let me start out by saying that in our marriage, I am the AV geek and my husband could care less, as long as the TV turns on. Not so important I know, but I have posted on so many tech forums where I am automatically assumed to be a guy that I feel I should point that out right away.
Anyway, I decided to replace the old RG59 cable that is used to supply cable to our TVs (the internet cable modem is a separate feed) because I was planning on adding another feed to a new TV I plan to hook up, and discovered that all the inside wiring is RG59. A quick search taught me that RG59 is not the best for HD signals, so I figured I would replace all the old cable with quad shielded RG6 while I was at it.
A little bit about my set up. Like I said, the cable modem has a separate feed to it, so this would be for the TVs and cable tuners only. The TV cable splits 3 ways after an amplifier. One goes to the living room TV, one goesaround the house to the bedroom, and one goes to the basement. The signal quality with the RG59 wasn't bad, but some of the digitial channels could be pixelated, so I thought the cable replacement was justified. Sunday I spent much of the day replacing the longest line, the feed that goes around the house to the bedroom. I used quad shielded RG6 like I said, but added a two way splitter so that I could take off a feed to supply a networked cable tuner. I then had to make my own male termination connections using screw on connectors. When I tuned the TV in the bedroom, I didn't get any channels at all. I removed the splitter and used a union connector. I then was able to tune most of the channels, but the analog channels look horrible, and some of the digital are missing. The HD channels that do come in look good.
So where did I go wrong? Maybe my connectors are at fault? Otherwise why would my signal look worse than it did before?