| 4-El-10m | |||
3-El.-15m |
4-El.-15m | ||
| 4-El.-20m |
3-Element-15-m-Yagi with 28 Ohm
Boom 4,00 m
Short data for the Yagi at the begin, in the middle part and at the end of the band
Plot with the NEC-II-reference of YO7.2 by K6STI
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The meaning of the data : Frequency, gain, F/R, radiation resistance (impedance), SWR and loss against a theoretical defined maximum- gain-Yagi with the given boomlength. Remember that this gain is only available with very low impedance and extrem low bandwidth!
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The 3-El.-28-Ohm-Yagi built by Alex, IK5PWB |
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Mechanical details of the Yagi built by IK5PWB
You see that a lot of individual solutions for the construction is possible! |
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The 3-El.-15-m-Beam built by Andy, M0CTR On the day he finished the beam he worked CE0Y/DK7ZB in CW.... |
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Yagi built by Sebastian, IN3FOX |
Elements of the15-m-28-Ohm-Yagi, lengths for one
element-half:
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20x1,5mm |
16x1,5mm |
12x1mm |
Position |
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Ref |
1,00m |
1,00m |
1,70m |
0m |
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Rad |
1,00m |
1,00m |
1,485m |
1,69m |
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Dir |
1,00m |
1,00m |
1,255m |
3,95m |
Elevation-diagram (vertical pattern):
