4-El.-28-Ohm-Yagi (0,76m-Boom)
Gain 6,3dBd F/B >20dB Boom 0,76m Stacking distance 1,70m
Very uncritical broadband version! Newcomers should have no problems and should be successful in building this antenna.
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Elementlengths for 4, 6, 8 and 10mm
Diameter | Reflector | Radiator | Director 1 | Director 2 |
4mm | 1033mm | 1004mm | 960mm | 888mm |
6mm | 1031mm | 998mm | 951mm | 876mm |
8mm | 1030mm | 994mm | 944mm | 866mm |
10mm | 1030mm | 990mm | 937mm | 857mm |
Elementpositions
Reflector | Radiator | Director 1 | Director 2 |
0mm | 180mm | 335mm | 755mm |
Details of the radiator and the element-mounting with 6mm-elements
Cheap and simple solution of Andi, DK6FX:
Plotted patterns for a single Yagi
2 Yagis stacked with a distance of 1,70m (gain without losses by EZNEC +4)
In practise you can expect 9,1dBd gain for the 4 over 4