Best way to splice a cable modem line & 3 TV cable lines?

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  • TheBigGuy
    Registered User
    • Jun 2002
    • 84

    #1

    Best way to splice a cable modem line & 3 TV cable lines?

    Any ideas? I have 1 co-axial line going into the house and want to connect it to my cable modem and 3 TV's. The 4-way splitter I bought appears to really slow my Internet connection.
  • Babaganoosh
    ♥♥♥ Likes Hugs ♥♥♥
    • Nov 2001
    • 15841

    #2
    You really can't. You should leave the cable modem on its own line. Splitters knock down signal quite a bit and cable modems are picky about signal levels. Look at the other TVs that you have hooked up to the splitter. If the higher channels look a little fuzzy, you don't have enough signal.
    I like pie.

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    • TheBigGuy
      Registered User
      • Jun 2002
      • 84

      #3
      Damn, thanks. So, if I had ordered cable TV *AND* Internet connectivity, the cable company would have fed 2 lines into my house(one for TV, the other for Internet)?

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      • Scootermuze
        Confirmed User
        • Dec 2001
        • 4513

        #4
        Radio Shack has a bi-directional cable amplifier that works fine for me..

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        • Mojo Rizin
          Confirmed User
          • Dec 2002
          • 1089

          #5
          Or you could split the line with a 2 way splitter..

          1 line is for cable modem and then split the other line into another 3 way splitter for the TVs

          Start Making Reel Profits Today!

          VOIP Technology Is NOW

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          • Centurion
            Confirmed User
            • Dec 2002
            • 6033

            #6
            Originally posted by TheBigGuy
            Damn, thanks. So, if I had ordered cable TV *AND* Internet connectivity, the cable company would have fed 2 lines into my house(one for TV, the other for Internet)?
            Nope..in most cases they would simply have split the signal for both. In fact, you're sharing your cable modem signal with everyone else on the surrounding blocks for miles. One big draw back with cable modems.

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            • Babaganoosh
              ♥♥♥ Likes Hugs ♥♥♥
              • Nov 2001
              • 15841

              #7
              Originally posted by TheBigGuy
              Damn, thanks. So, if I had ordered cable TV *AND* Internet connectivity, the cable company would have fed 2 lines into my house(one for TV, the other for Internet)?
              Probably not into your house. I used to work for the cable company here in town. We always liked to have a dedicated line for the modem itself but have a single drop coming into the house. We usually just put the splitter where the drop hit the house and then balanced the line coming to the modem from outside. If someone were to put a splitter on the line that was meant for the modem, it would definitely kill the performance of the modem.
              I like pie.

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              • fusionx
                Confirmed User
                • Nov 2003
                • 4618

                #8
                Originally posted by TheBigGuy
                Any ideas? I have 1 co-axial line going into the house and want to connect it to my cable modem and 3 TV's. The 4-way splitter I bought appears to really slow my Internet connection.
                Go to Best Buy (or wherever) and pick up a cable splitter that has independant impedance matching transformers in each connection.

                Here's an example: http://www.smarthome.com/7880.html

                The price on those look great, too. Mine was something like $18.95..

                I split the cable into modem and three TV lines for an office, and had absolutely perfect quality throughout.

                A normal splitter will not work - it does something with the resistance in the cable (either doubles it or cuts it in half - can't remember - but it really fucks things up).

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                • MuleScrote
                  Confirmed User
                  • Dec 2002
                  • 4601

                  #9
                  Originally posted by Mojo Rizin
                  Or you could split the line with a 2 way splitter..

                  1 line is for cable modem and then split the other line into another 3 way splitter for the TVs
                  That's the best way to do it with only one feed into the house

                  ICQ 78681003

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                  • Marcus Aurelius
                    No Refunds Issued.
                    • Apr 2003
                    • 14809

                    #10
                    you really do need your modem line on a dedicated feed for best speed and response. You can use a 2-way splitter from your main line feed to the house, then allow one leg of the splitter to feed the modem while the other leg feeds a signal amp for your remaining TV's.

                    you cant amp a modem line, so be sure you split it before the amp or you'll have no internet at all.

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