3-El.-10m |
4-El-10m | ||
| 4-El.-15m | |||
| 4-El.-20m |
3-Element-10m-Yagi with 28Ohm
Very short boom (3,00m), for 28,0-28,8MHz lightweight construction possible
Antenna built by Attila, DL1NUX
Report with a lot of pictures LINK to DL1NUX
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 the10m-28Ohm-Yagi, lengths for one
element-half:
|
|
16x1,5mm |
12x1mm |
Position |
|
Ref |
1,00m |
1,705m |
0m |
|
Rad |
1,00m |
1,57m |
1,36m |
|
Dir |
1,00m |
1,40m |
3,00m |
Azimuth-diagram (horizontal pattern):
Elevation-diagram (vertical pattern):
