Element Lenght (Cm.) Spacing (Cm.) D (mm.)
Director #: 11* 88.5 669 5
Director #: 12 88.0 750 5
Director #: 13 87.5 834 5
Director #: 14 87 918 5
Director #: 15** 86.5 1002 5
Element Lenght (Cm.) Spacing (Cm.) D (mm.)
Reflector 103.0 0 5
Driven Ele 99.0 36.0 8
Director #: 1 95.0 52.5 5
Director #: 2 94.0 90.0 5
Director #: 3 93.0 135.0 5
Director #: 4 92.0 187.0 5
Director #: 5 91.5 246.0 5
Director #: 6 91.0 309.0 5
Director #: 7* 90.5 375.0 5
Director #: 8 90.0 444.0 5
Director #: 8 89.5 517.0 5
Director #: 10 89.0 592.0 5
Here is the design DJ9BV that i use for my 144Mhz antennas. Fitted on a 6m long boom : Now the complete rest of dimentions for others lenghts. Note the some design need 2 Reflectors; * ; ** * Need 2 reflectors Lenght 105,3cms spaced 60Cms Vertical plan. **Need 2 reflectors Lenght 108,3cms spaced 60Cms Vertical plan.
DJ9BV 144mhz (12elts)
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