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Using coax for Internet?

  • 25-08-2019 10:01pm
    #1
    Internet job
    Registered Users Posts: 7 ✭


    Ive upgraded my broadband to 3 wireless. Its going fairly OK but the speed is a bit up and down. The modem is currently located downstairs. I've tried the modem in the attic and speeds are consistently better. I've purchased an external antenna for the attic to improve the reliability of speed and signal. I'm awaiting delivery of the antenna but a work colleague in the know of these things recommended it. The antenna requires 2 SMA cables to connect from the antenna to the router. I already have 2 coax cables (not in use) run from a TV aerial socket to the area in the attic that I will be positioning my antenna. I have 2 questions:

    1. Can I use the coax cable to link the router and the antenna? In other words run Internet over coax (rather than run 2 new SMA cables) And if so:
    2. What adaltors/connectors will I need to convert from coax to sma?

    Any advice would be greatly appreciated


Comments

  • #2
    tsue921i8wljb3
    Closed Accounts Posts: 5,017 ✭✭✭tsue921i8wljb3


    I'm not certain but I think the coaxial cable you need is 50 ohm while the coaxial you have already is likely to be 75 ohm for TV. You'd probably get the best performance by using the correct cable.


  • #3
    roast
    Registered Users, Registered Users 2 Posts: 2,320 ✭✭✭roast


    Emerson Big Kilt wrote: »
    I'm not certain but I think the coaxial cable you need is 50 ohm while the coaxial you have already is likely to be 75 ohm for TV. You'd probably get the best performance by using the correct cable.

    Yep spot on. Majority of satellite/cable coax is 75ohm and isn't really suitable.

    OP, best to run new cabling with new connectors and start out right.
    All the info you need is here: https://editorsean.com/articles/3g4g-antenna-advice/#impedance


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