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6-Element-12.5-Ohm-2m-Yagi for SSB/CW Boom 2,60m Gain 10,2dBd, F/B > 25dB, stacking distance 2,85m The gain for the stacked Yagis is without losses for the stacking harness!
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| Construction | 2-Element (0,15m) | 3-Element (0,80m | 4-Element (1,00m) |
| 4-Element (1,25m) | 4-Element (1,50m) | 5-Element (2,00m) | 6-Element (2,60m) |
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6-Element-12.5-Ohm-2m-Yagi for SSB/CW Boom 2,60m Gain 10,2dBd, F/B > 25dB, stacking distance 2,85m The gain for the stacked Yagis is without losses for the stacking harness!
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Here some pictures of the Brazil Japy
DX-Group with the 6-Ele-12,5Ohm on the Pico da Bandeira, 3rd highest peak of
Brazil, 2891 m ASL. Tnx photos to Flávio, PY2ZX. Click
to enlarge!
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The stacked array 4x12,5-Ohm-Yagis Contest station F8KTH The antennas were built by Joel, F6JMT
Details about the construction: |
| Gain | 3dB hor | 3dB ver | |
| 1x6 El | 10,25dBd | 42,0° | 48,2° |
| 2x6 El | 13,1dBd | 42,6° | 19,6° |
| 4x6 El | 16,0dBd | 42,8° | 9,4° |
Element-Positions
| Ref | Rad | D1 | D2 | D3 | D4 |
| 0mm | 215mm | 625mm | 1280mm | 2010mm | 2580mm |
Element-Lengths
| Diameter | Ref | Rad (10mm) | D1 | D2 | D3 | D4 |
| 6mm | 1030mm | 971mm | 944mm | 922mm | 921mm | 901mm |
| 8mm | 1028mm | 971mm | 936mm | 914mm | 912mm | 893mm |
| 10mm | 1026mm | 971mm | 930mm | 908mm | 904mm | 886mm |
The currents in the elements show a very good profile (EZNEC+4)
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Horizontal pattern (0dB=10,28dBd) |
Vertical pattern (0dB=10,28dBd) |
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2 Yagis stacked vertically with 2,85m Vertical pattern (0dB=13,4dBd) |
4 Yagis stacked vertically with 2,85m Vertical pattern (0dB=16,51dBd) |
Gain of the stacked arrays without losses in cables and splitters!
