Entertainment Center: TVs, Stereos, VCRs and DVDs - cable tv problem

I have a TV on one side of the room and a short cable on the other side. I put together an rg59 extension cable and connected it.

Problem:
Some channels are clear, some are snowy. I checked all connectors and they appear to be clean and tight. Wriggling one end seem to eliminate the noise on some channel but on a few it still remained. Any idea what's causing this?

Another question:
As the extension cable snakes around the floor, I am wondering if there's an appliance out there that can transmit the signal from one end of the room to the tv wirelessly? I assume I'll need a decoder near the source to change channels?

Thanks.

How long of a cable did you use? RG59 is made for short distances. You should probably have used RG6.

Also, when you say you put together a rg59 extension cable, do you mean you crimped the ends on yourself? You might not have done this correctly.

I would just buy an RG6 cable that is already put together.


No way to wirelessly send tv signal that I am aware of.

Run coax through the walls into a new outlet. I did this, and it's not that difficult.

Thanks. I assumed it was rg59 but I may be wrong. It is white colored left behind by the cable guy. I crimped them myself. I've done that many times without any problems. Being a ham radio operator, I've had much experience with rg58 and rg8 cables. The cable is about 25' long.

I've thought of running it inside the wall but I'm not sure how to do that without ripping it open. Can I use a fish? One of the wall has a sliding door too.

Here's what I did for running through walls-

Mark where you want to put the outlet on the wall

I then measured a reference point so I can find the right spot in the attic. I used my heating vent in the ceiling as a reference point. I measured from the vent to the wall, then went up into the attic and measured from the vent duct, to the wall joists and drilled a 3/4" hole through the two joints that are inbetween the walls.

I put a LED light at the outlet hole so I could see the light from the hole I drilled in the attic.

From there, I fished my fish line down to that outlet, and had my wife pull the fish through the hole.

I taped the COAX cable onto the fish line, and pulled the line up through the walls and spliced it off an existed coax in the attic.

If you don't have any splice points in the attic, like I did, I had to disconnect another close by coax from another wall outlet, and fish it back up into that atticc, add a splitter, and pull that line back down.

It's not difficult if you are doing this in the inside walls of the house. It's more difficult doing this in the outside walls because you have insulation to deal with. Some houses have horizontal 2x4's inbetween the wall studs, which in that case, is not worth doing unless you want to re sheetrock.

You may also run the cable behind the base boards and under door jams if you got the room.

Thank you sir. You've answered much of the questions I posted in other foras today.

Running the cable along the baseboard would be my option but I can't tuck it away as I have hardwood floors. The attic is also 2 floors above so there's much distance to traverse. Fortunatley a portion of the run will be covered by a sofa.

I may have to replace the cable though. White on hardwood stands out too much. Haven't seen hardwood colored mouldings too.