7 ELEMENTS YAGI
3AT138 --------------------------------3DX013
--------------------------------------------PKW
The antenna in the middle is from Bruno 3DX013 although it has a very
small boom Bruno confirmed already 256 DXCC with the antenna.
When building these antennas don't forget to enforce the boom and perhaps mast.
7 elements BOOMLENGHT 11,55 meter Type : HPSD 7 short
Although
this 7 elements is too short to be called a 7 elements, it has some
great features for stacking.
It has a very wide SWR pattern a high Front to side and the Front to
back is also over a wide region available.
This antenna is ideal for stacking.
Boom
length 11,55m HPSD 7short |
Boom length 14,4m HPSD 7normal | Boom
length 18,0m HPSD 7long |
|
| Design freq: | 27,555
MHz |
27,555
MHz |
27,555
MHz |
| Gain: | 9,57
dBD (11,71 dBi) |
10,17
dBD (12,41 dBi) |
11
dBD (13,14 dBi) |
| F/B: | 34,19
dB (F/S 23,5 dB) |
33,6
dB (F/S 11,28 dB) |
43
dB (F/S 17,2 dB) |
| Beam width: | 36,2
degrees |
48,8
degrees |
46,4
degrees |
| Band width | 1,7
MHz |
0,8
MHz |
0,6
MHz |
| Element thickness | 22mm |
22mm |
22mm |
| A= | 4720mm |
4640mm |
4650mm |
| B= | 4880mm |
4880mm |
4720mm |
| C= | 4890mm |
4900mm |
4840mm |
| D= | 4908mm |
4920mm |
4960mm |
| E= | 4990mm |
4960mm |
5050mm |
| F= | 5340mm |
5160mm |
5400mm |
| G= | 5480mm |
5560mm |
5500mm |
| H= | 3000mm |
3200mm |
3350mm |
| I= | 2790mm |
3450mm |
4230mm |
| J= | 2070mm |
2380mm |
3630mm |
| K= | 1600mm |
2070mm |
2100mm |
| L= | 630mm |
1900mm |
1650mm |
| M= | 1460mm |
1400mm |
2040mm |
Short ------------------------- Normal
Long
