1/4
Wave - ground plane
An simple and easy to
make antenna width a good band width. In this case for 10 and 11m.
1/4
wave ground plane |
||
| Design freq: | 27,555
MHz |
|
| Gain: | 3,99
dBi |
|
| F/B: | N.A. |
|
| Beam width: | N.A. |
|
| Band width | 3,5
MHz (!!) |
|
| Tube/Wire | 33mm
alu / 1,5mm2 |
|
| 1= | 2.500mm
33mm alu |
|
| 2= | 2.630mm
1,5mm2 wire |
|
| 3= | 2.630mm
1,5mm2 wire |
|
| 4= | 2.630mm
1,5mm2 wire |
Azimuth plot
Elevation plot on 12 meters height
On my DX
activation as 234SD0 (afghanistan), there was a small opportunity to
bring the above in practice.
234 division consist for the best part out of sand.
Sand and verticals do NOT match!
Water and verticals on the other hand DO match just think of those strong
MM stations on the frequency.
So up-front, the results were probably a bit down with a vertical. It
was however with what I started of.
It was
the most simple antenna (1/4 vertical - ground plane) for me to carry
along with me.
(as a fishing rod...fishing in Afghanistan hi hi)
