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4-Element-12.5-Ohm-2m-Yagi for SSB/CW 

Boom 1,50m

F/B > 20dB, stacking distance 2,10m

  Gain 3dB hor 3dB ver
1x4 El 8,8dBd 50,0° 62,2°
2x4 El 11,7dBd 50,6° 26,4°
4x4 El 14,8dBd 51,2° 12,8°

 

Element-Positions

Ref Rad D1 D2
0mm 320mm 860mm 1480mm

Element-Lengths

Diameter Ref Rad (10mm) D1 D2
4mm 1020mm 949mm  942mm 922mm
6mm 1016mm 950mm  931mm 912mm
8mm 1014mm 950mm  923mm 904mm

Single Yagi, horizontal pattern, 0dB = 8,81dBd

Single Yagi, vertical pattern, 0dB = 8,81dBd

2xYagi, vertical pattern, 0dB = 11,77dBd

4xYagi, vertical pattern, 0dB = 14,81dBd