| 4-El-12,5-Ohm (2,90 m) | ||
| 5-El-12,5-Ohm (6,00 m) | ||
| 7-El.-28+50Ohm (9,20+7,75 m) | 8-El.-28-Ohm (12,30 m) | 9-El.-28-Ohm (14,00 m) |
| 4-El-28+50-Ohm (2,20 m) | 5-El-50-Ohm (4,30 m) new | 6-El-50-Ohm (6m+7,20 m) new |
5-Element-50-Ohm-Yagis with 4,30-m-, 4,00-m- and 4,50-m-Boom
The Yagis with 4-m- an 4,50-m-Boom see down!
These antennas are scaled types of built and well tested 2-m-Yagis
5-Element-50-Ohm-Yagi with 4,30-m-Boom
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Boom 4,30 m Medium Bandwidth, High-Gain-Design 8,5dBd (10,65dBi) F/B 24dB |
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The Yagi built by Abdulla, A71CV |
Abdulla, A71CV and Martin, DK7ZB at the Hamradio 2010 |
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The Yagi built by Greg, SP5LGN
Link to his Homepage with more photos: |
Elements fixed 12mm or 10mm, Radiator 12/16mm, tunable (see picture)
Feeding with a 50-Ohm-coax-choke (about 1,20m cable)
| Element | El.-Position | El.-Length (12 mm) | El.-Length (10 mm) |
| Ref | 0 mm | 2974 mm | 2978 mm |
| Rad | 800 mm | 2896 mm | 2896 mm |
| D 1 | 1210 mm | 2727 mm | 2734 mm |
| D 2 | 2735 mm | 2696 mm | 2706 mm |
| D 3 | 4260 mm | 2660 mm | 2670 mm |
5-Element-50-Ohm-Yagi with 4-m-Boom
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Boom 4,00 m Medium Bandwidth, High-Gain-Design 8,27 dBd (10,42 dBi) F/B > 25dB |
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The 5-Element-Yagi built by Alessandro, IK5PWB |
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The antenna built by Ludek, OK2IEN
Element lengths and positions, radiator with 16-/12-mm-tubes as described above
| Element | El.-Position | El.-Length (12 mm) | El.-Length (10 mm) |
| Ref | 0 mm | 2966 mm | 2972 mm |
| Rad | 835 mm | 2970mm | 2968 mm |
| D 1 | 1225 mm | 2784 mm | 2792 mm |
| D 2 | 2560 mm | 2744 mm | 2754 mm |
| D 3 | 3970 mm | 2674 mm | 2686 mm |
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5-Element-50-Ohm-Yagi with 4,50-m-Boom
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This Yagi is available as a commercial
version with a folded dipole by KONNI
. Unfortunatly the company has shut down.
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High Gain, medium F/B and good bandwidth Gain 8,8 dBd, F/B 19 dB, Bandwidth for SWR <1,5 measured with 1 MHz |
The measured data for the 5-El.-Konni-Yagi by DK7ZB:
The construction with a stretched dipole as described above with 16x1,5mm- and 12-mm-tubes
| Element | El.-Position | El.-Length (12 mm) |
| Ref | 0 mm | 2934 mm |
| Rad | 760 mm | 2826 mm |
| D 1 | 1145 mm | 2700 mm |
| D 2 | 2780 mm | 2690 mm |
| D 3 | 4450 mm | 2650 mm |
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