160-6 meters wire

Discussion in 'Ham Radio Discussions' started by K2ICC, Jan 23, 2020.

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  1. K2ICC

    K2ICC Ham Member QRZ Page


    I got a wire 124' 6" and took 6 inches from it, as SWR was high on 160, 80 and 40 meters. Now with external tuner, SWR is ok.

    I would like to lower the SWR to use the internal tuner on the IC-7300. Bands on 20, 15, 12, 10 and 6 are ok.
    Should I cut so more?

    This antenna has an 9:1 UNUN. Any one has the same and a length that want to share or any help?
  2. KQ0J

    KQ0J XML Subscriber QRZ Page

  3. WA9UAA

    WA9UAA Ham Member QRZ Page

    I'd suggest multiple parallel wires, closely matched to the bands in question, which will give the OP some control over the directional characteristics of the antenna(s).
  4. WB2WIK

    WB2WIK Platinum Subscriber Platinum Subscriber QRZ Page

    Do you have a counterpoise wire connected? If so, how long is it?
  5. AE1N

    AE1N Ham Member QRZ Page

    I feed two 43-foot phased verticals. You can imaging the loading problems in feeding them on 6 through 160 meters. But that's all taken care of by my MFJ automatic tuner.
    First, turn OFF the internal tuner and adjust the external tuner for your lowest SWR to the antenna.
    Now turn ON the internal tuner and have it adjust itself for lowest SWR>
    (You may have to go back and forth a bit for best match)
    In my case both the tuners memorize their settings so all is well in 2020!
    Layne AE1N

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