Construction   2-Element (0,15m)    3-Element (0,80m 4-Element (1,00m)
4-Element (1,25m) 4-Element (1,50m)   5-Element (2,00m) 6-Element (2,60m)

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

Boom 1,00m

F/B > 20dB, stacking distance 1,80m

  Gain 3dB hor 3dB ver
1x4 El 7,5dBd 54,4 72,8
2x4 El 10,6dBd 54,8 30,8
4x4 El 13,7dBd 54,8 15,0

Element-Positions

Ref Rad D1 D2
0mm 200mm 505mm 985mm

Element-Lengths

Diameter Ref Rad (10mm) D1 D2
6mm 1068mm 985mm  961mm 930mm
8mm 1066mm 985mm  954mm 921mm

Single Yagi, horizontal pattern, 0dB = 7,54dBd

 (144,3 MHz)

Single Yagi, vertical pattern, 0dB = 7,54dBd   

 (144,3 MHz)

2xYagi, vertical pattern, 0dB = 10,68dBd

(144,3MHz)

4xYagi, vertical pattern, 0dB = 13,76dBd

(144,3 MHz)