ZeroFive 43 Foot Vertical SWR Plots

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by AE7F, Jul 16, 2014.

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  1. AE7F

    AE7F Ham Member QRZ Page

    Just playing around with my AA-54 analyzer and could get to the feed point of my ZF 43 foot vertical antenna and thought I'd post some SWR plots of that antenna.

    The analyzer was connected to the antenna through a shorter length of RG8U and the supplied UN-UN transformer:

    10m
    10m.jpg

    12m
    12m.jpg

    15m
    15m.jpg

    17m
    17m.jpg

    20m
    20m.jpg

    30m
    30m.jpg


    40m
    40m.jpg

    80m
    80m.jpg

    160m
    160m.jpg
     
  2. K6GB

    K6GB XML Subscriber QRZ Page

    That's why I have a remote tuner, I can even load up the Hustler on 17 and 12. I guess the un-un is just to get you close enough for a tuner to handle? Way too short for 160 I reckon.
     
  3. AE7F

    AE7F Ham Member QRZ Page

    Well, they seem to be a pretty popular antenna so I thought it might be useful to post the graphs. I like it for its strength. It has handled some serious weather. However, it is advertised essentially as an all band antenna, and as you can see, in its default form, it presents some substantial compromises.

    Now that I have an analyzer, and since I don't have a remote tuner, I may have to play around with some loading coils for 160/80...
     
  4. W0AAT

    W0AAT XML Subscriber QRZ Page

    Takeoff angle above 20 meters leaves a lot to be desired too...
     
  5. N0YPD

    N0YPD Premium Subscriber QRZ Page

    Thanks for posting this.I have a ZF 43,but no analyzer.My mfj 927 remote tuner does a very good job on tuning except for 160.
    007.jpg
     
  6. AE7F

    AE7F Ham Member QRZ Page

    Indeed. A quick look at the graph shows what your tuner has to deal with on 160...
     
  7. AE7F

    AE7F Ham Member QRZ Page

    Yes. Maybe I can make this a more suitable antenna for 160/80 and then mostly use it for 160-30. The hex beam covers 20-6 anyway.
     
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