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The DK7ZB- Quadruple-Quadlong for the 2-m-Band The left picture shows the stacked array of the 2x quadruple Quadlong at DF0MU. Antennas built by Andreas, DL6YEH
DF0MU is the winner of the UKW-Contest-Pokal 2011 in Germany. Congratulation! |
| Theory of the Quadlongs | 4/6-m-Quadlongs | 2-m-Quadlong | 2-m-4x-Quadlong | 2-m-4x-Oblong | The Hentenna (2 m, 4m, 6 m) |
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The DK7ZB- Quadruple-Quadlong for the 2-m-Band The left picture shows the stacked array of the 2x quadruple Quadlong at DF0MU. Antennas built by Andreas, DL6YEH
DF0MU is the winner of the UKW-Contest-Pokal 2011 in Germany. Congratulation! |
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The stacked Quadlongs built by Gunter, DL2DRG
The QTH is in JO70IT
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A second hybrid version see down!
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Gain 9,0 dBd F/B 10 dB 3-dB-angle hor. 75,0° 3-dB-angle ver. 36,2°
Feedpoint 50 Ohm Height 2,85 m
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The horizontal parts are made with 4x1-mm brass tubes, the vertical parts are made with flexible copper-wire (2,5 mm diameter). Big azimuth-angle for contest- and portable-operation. The whole antenna can be folded to a small package. |
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Part |
Material |
Length |
Reflector- distance 320
mm |
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horizontal |
4x1-mm
brass tube |
258
mm |
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vertikal |
2-mm-flexible
copper wire |
715
mm |
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Reflector |
horizontal |
4x1-mm
brass tube |
280
mm |
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vertical |
2-mm-flexible
copper wire |
715
mm |
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The 50-Ohm-Choke for the symmetrical feeding: 5 turns of PTFE-coax on a 25-mm-PVC-tube You can handle 250 Wtts RF |
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The boom parts with a PVC-square-tube |
The DK7ZB-Quadruple-Hybrid-Quadlong for the 2-m-Band
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Gain 9,2 dBd F/B 20 dB 3-dB-angle hor. 72,4° 3-dB-angle ver. 36,0°
Feedpoint 50 Ohm Height 2,85 m
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Parts |
Material |
Length |
Reflector- distance 320
mm |
Radiator
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horizontal |
4x1-mm brass tube |
276
mm |
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vertical |
2-mm
flexible copper wire |
715
mm |
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Reflectors |
horizontal |
3,2-mm
aluminium |
1050
mm |
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| 4-mm aluminium | 1049 mm | |||
| 6-mm aluminium | 1048 m |
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The clamp for the mounting of the boom |
