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)

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

Boom 0,80m

F/B > 10dB, stacking distance 1,70m

 

The Yagi in portable use, built by

Victor, EA1GAR

Data for single Yagi and vertical stacking

  Gain 3dB hor 3dB ver
1x3-El 7,2dBd 57,2° 79,6°
2x3-El 10,4dBd 57,4° 33,0°
4x3-El 13,4dBd 58,4° 16,0°

Element-Positions

Ref Rad D1
0mm 310mm 800mm

Element-Lengths

Diameter Ref Rad (10mm) D1
4mm 1018mm 945mm  937mm
6mm 1016mm 945mm  927mm
8mm 1014mm 944mm  920mm

Plots at 144,3MHz, gain without stacking losses

Single Yagi, hor. pattern, 0dB = 7,26dBd

Single Yagi, vert. pattern, 0dB = 7,26dBd

2 x 3-El.-Yagi, ver pattern, 0dB =10,44dBd,

4 x 3 El.-Yagi, vertical pattern, 0dB = 13,4dBd