1. Join Now

    AVForums.com uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Question - does flat 75 ohm coax exist?

Discussion in 'TVs' started by pcavelle, Nov 28, 2002.

  1. pcavelle

    pcavelle
    Member

    Joined:
    Jan 23, 2001
    Messages:
    946
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    18
    Location:
    London
    Ratings:
    +16
    I'm looking to run a long RF cable into an awkward place (fnar fnar!) and wondered if any kind soul knows whether such a thing as totally flat or almost flat aerial cable exists?

    Thanks

    Paul
     
  2. mattheu

    mattheu
    Guest

    Products Owned:
    0
    Products Wanted:
    0
    Ratings:
    +0
    Not that I'm aware of. Coxial cable by definition is circular. As the impedance is a ratio of inner conductor diameter and spacing to the outer conductor ( varying with the dielectric constant of the insulator ). Its physical size (appying ratios)can be reduced but losses will tend to increase and therefore, not useful for long runs.
    Parallel flat feeders are available in 300 ohm, and I'm not aware of 75 ohm, it would be useless anyway, as no shielding.
    So the short answer is nope.
    Get some really good small diametre low loss cable from a specialist RF cable supplier, it will do the trick, but cost an arm and a leg.
     
  3. WSH

    WSH
    Active Member

    Joined:
    Apr 13, 2002
    Messages:
    997
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    28
    Ratings:
    +39
    You can get about 30cm of flat coax for those who want to run it through a window.
     

Share This Page

Loading...