4-El-10m | |||
4-El.-15m | |||
4-El.-20m |
4-Element-10-m-Yagi with 28 Ohm
Boom 3,80 m
The 10-m- 4-Element-28-Ohm-Yagi,
built by Mich, ON8DM |
The 10-m- 4-Element-28-Ohm-Yagi,
built by Fabricio, PU1KVA
|
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 Yagi built by Tim, K7XC |
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 the 4-El.-10-m-28-Ohm-Yagi, lengths for one
element-half:
|
16x1,5mm |
12x1mm |
Position |
Ref |
0,50m |
2,17m |
0m |
Rad |
0,50m |
2,095m |
0,90m |
Dir |
0,50m |
2,00m |
1,70m |
Dir |
0,50m |
1,84m |
3,80m |
Azimuth-diagram (horizontal pattern):
Elevation-diagram (vertical pattern):
Gain, SWR, F/R and Z versus frequency: