| 4-El-10m | |||
| 4-El.-15m | 3-El.-17m |
||
| 4-El.-20m |
3-Element-17m-Yagi with 28Ohm
Boom 5,00m
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
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!
Elements of the17m-28Ohm-Yagi, lengths for one
element-half:
|
|
30X2mm |
25x2,00mm |
20x1,5mm |
16x1,5mm |
Position |
|
Ref |
0,50m |
1,35m |
1,25m |
1,165m |
0m |
|
Rad |
0,50m |
1,35m |
1,25m |
0,945m |
2,19m |
|
Dir |
0,50m |
1,35m |
1,25m |
0,675m |
4,95m |
Azimuth-diagram (horizontal pattern):
Elevation-diagram (vertical pattern):
