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Signal Splitter - Advice please

  • 30-05-2007 10:13pm
    #1
    deadl0ck
    Registered Users, Registered Users 2 Posts: 4,196 ✭✭✭


    Hi all,

    My fater-in-law asked me if I could get him a signal splitter, for his NTL - he has an NTL Cable Modem working off the current setup and it works fine. The following splitter is used is the DSU-2P - see here

    Anyhow - I bought one of these as he wanted an extra output, but the cable modem doesn't work when this splitter is used.

    Can anybody please help me out with this issue and perhaps point me iun the right direction ?


Comments

  • #2
    eddiehead
    Closed Accounts Posts: 1,493 ✭✭✭eddiehead


    the 4way split might be causing too much signal loss for the modem to work, 2 way split loses 3d/b for every output, a 4way loses 7d/b, its not much but it could be enough to make the modem unstable, i used to work for ntl and this was pretty common.
    u might need to get an ntl tech out to get the it all working properly


  • #3
    deadl0ck
    Registered Users, Registered Users 2 Posts: 4,196 ✭✭✭deadl0ck


    So you reckon that I have the right splitter then (apart from the signal loss)?

    The 2-way has "-3.5db" beside each output. I assume that's the signal loss you're talking about ?

    I could try a 3 way I suppose and see what that's like.....


  • #4
    altered121
    Closed Accounts Posts: 154 ✭✭altered121


    deadl0ck wrote:
    Hi all,

    My fater-in-law asked me if I could get him a signal splitter, for his NTL - he has an NTL Cable Modem working off the current setup and it works fine. The following splitter is used is the DSU-2P - see here

    Anyhow - I bought one of these as he wanted an extra output, but the cable modem doesn't work when this splitter is used.

    Can anybody please help me out with this issue and perhaps point me iun the right direction ?
    right direction is contact ntl pay once off fee 25euro and they connect extra room. when you are not even sure about splitter to use better to let installer do it


  • #5
    copacetic
    Subscribers Posts: 16,614 ✭✭✭✭copacetic


    deadl0ck wrote:
    So you reckon that I have the right splitter then (apart from the signal loss)?

    The 2-way has "-3.5db" beside each output. I assume that's the signal loss you're talking about ?

    I could try a 3 way I suppose and see what that's like.....

    as noted above you are losing too much power to each signal by splitting it so many ways. All passive (unpowered) splitters cause power loss. 3dB loss is equivalent to half your signal power (hence if you split the signal with your two way splitter into 2 you get half the signal power on each (minus some extra loss in the process). You should try a powered splitter instead, it could work for you in this situation. You can buy cheap ones in argos.


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