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MMANA-GAL 40m OCFD with 33% offset and center loading

Lonney May 26th, 2019 (edited) 75 Never
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  1. 40m OCFD, 33% offset, center loading, 40-20-10-6m.
  2. *
  3. 7.15
  4. ***Wires***
  5. 3
  6. 0.0,    10.45,  0.0,    0.0,    0.0,    0.0,    8.000e-04,  -1
  7. 0.0,    -3.55,  0.0,    0.0,    0.0,    0.0,    8.000e-04,  -1
  8. 0.0,    -3.55,  0.0,    0.0,    -10.45, 0.0,    8.000e-04,  -1
  9. ***Source***
  10. 1,  0
  11. w2b,    0.0,    1.0
  12. ***Load***
  13. 1,  1
  14. w1e,    0,  0.0,    425.0,  0.0
  15. ***Segmentation***
  16. 800,    80, 2.0,    2
  17. ***G/H/M/R/AzEl/X***
  18. 2,  12.0,   1,  200.0,  120,    60, 0.0
  19. ###Comment###
  20. Centered/resonant on 20m at 14.2 MHz. This results in resonance just below the 40m / 7MHz band.
  21. Center loading idea from ON4AA's OCFD design at https://hamwaves.com/cl-ocfd corrects the
  22. resonance on 40m with out affecting the other bands.
  23. Also provides a good match on 10m centered on 28.45 MHz, and 6m centered on 50.0 MHz.
  24. As with all OCFD antennas a 4:1 balun with good current choking is required, e.g. Balun Designs LLC model 4116.
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