ad: vanity

Long wire antenna HELP PLEASE!

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by N4CLY, Nov 19, 2009.

Thread Status:
Not open for further replies.
ad: L-HROutlet
ad: l-rl
ad: Left-3
ad: L-MFJ
ad: HRDLLC-2
ad: L-Geochron
ad: Left-2
ad: MessiPaoloni-1
ad: abrind-2
  1. R3BU

    R3BU Ham Member QRZ Page

    If you mean the ladder line on the picture above, instead of HF transformer, the ladder line will be radiating due to not equal curents in it. Sometimes it is not a problem. In the coax the currents are equal, the HF power is coming through magnetic field only. No RF choke is needed.
     
    Last edited: Nov 21, 2009
  2. R3BU

    R3BU Ham Member QRZ Page

    mistake mistake
     
    Last edited: Nov 21, 2009
  3. KA0HCP

    KA0HCP XML Subscriber QRZ Page

    If it hasn't been said, the very simplist thing to do would be to work your longwire against ground (your ground rod). You can add some radials later for comparison and improved performance.

    b.
     
  4. KB9MZ

    KB9MZ Ham Member QRZ Page

    I believe you may be misunderstanding the application. The ladder line IS
    the radiator and it is a balanced closed circuit. This way you need not depend
    on any sort of counterpoise or ground plain. All the wire used in the ladder line
    is in the air thus radiating! Depending on the wire size and distance between the wire you may have to add a transformer but that is so much easier than burying or laying on the ground the added wiring where it does not radiate.
     
Thread Status:
Not open for further replies.

Share This Page

ad: elecraft