Mfcttrf

I recently moved into a home where each room has a coaxial wall plate. My ISP provides internet through a cable modem, where unfortunately the cable input is in a non-ideal location. Next to that cable input from my ISP, there is a wall plate where I could connect the coax cable.

If I did that, would I be able to connect my cable modem from another room's wall plate? How could I go about testing the connections?

I unfortunately don't have access to the original owners and can't find out how they did it.

There's probably a gob of cable terminations in your basement or utility room. You'll need to find the two cables that go to the rooms involved (or simply place your modem there). With any luck they're labeled.

Using a pass-through splicer, connect those two. You should now have a continuous route between rooms, and the only question is whether the resistance and noise introduced by the splicer will substantially degrade your signal.

Here's the caveat with old coaxial cable. If this is an older house, it might have cable already, but it's probably RG-59. This is from back in the days of analog signals, well before we were sending digital signals down them. If you have a satellite dish, you'll note they need RG-6 or better.

What's the difference? Shielding

Now, it's possible there's no interference on those old lines. In which case, stick your modem on and everything should be fine. Your modem should have a web interface and it should tell you the signal strength the modem is getting. Hook a computer to it and then hook the cable up. If you don't get enough signal, you might need to do some work (or call the cable company and have them do it for you, although they might charge you for that).

If you need more signal, here's some tips

1. Find the main splitter. It might be in the attic, in the basement (if you have one), or is sometimes outside. All your coax will tie into it. With a multi-port setup they probably have a serial splitter. They should have labels saying things like -3.5dB. Your room might be connected to one that says something like -7dB. Make sure it's on one of the smallest dB loss ports. If not, replace it with either another multi-connector (one that has minimal loss) or just get a double-male and connect them together.


2. Make a new run with better shielding. You should be able to find RG-6 readily, and probably RG-6 quad shield as well. This would eliminate a lot of signal loss back to the cable connection point. You can buy non-compression ends for this as well, if you don't want to invest in a coax end tool.

To elaborate further: You have a couple of options

1. Plug modem in where it comes into house. (Probably not ideal due to location)


2. Join outside cable to wall plate, then plug modem in in central utility room. (Again, might not be in central location.


3. Plug modem in as in #1. Many modems have a built-in MOCA adapter (or you can buy one) and connect it to the wall plate. Join all coax connections in utility room via an N-way splitter, and set up another MOCA adapter and a wifi hub in another room.

FYI, I've done #3 -- works pretty well!