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)

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

Boom 2,00m

Very high gain, small bandwidth

F/B > 20dB, stacking distance 2,40m

 

 

 

Gain without stacking losses:

  Gain 3dB hor 3dB ver
1x5 El 9,5dBd 44,4 52,5
2x5 El 12,5dBd 44,8 23,0
4x5 El 15,6dBd 45,2 11,0
6x5 El 17,4dBd 45,4 7,2

4x5-El.-Group

by

Luca, IW3FQT

Element-Positions

Ref Rad D1 D2 D3
0mm 260mm 715mm 1425mm 1980mm

 

Element-Lengths

Diameter Ref Rad (10mm) D1 D2 D3
4mm 1034mm 964mm  951mm 940mm 924mm
6mm 1032mm 966mm  938mm 932mm 918mm
8mm 1030mm 966mm  930mm 924mm 910mm

TM7T

at the 

'Practical Wireless'- Contest 2010 (QRP-Contest)

The mast is a 18-m-type by Spiderbeam without the upper segments

 

Tnx Photo to

Jean-Jaques, ON7EQ

1 x 5-El.-Yagi, vertical pattern, 0dB = 9,53dBd

1 x 5-El.-Yagi, vertical pattern, 0dB = 9,53dBd

2 x 5-El.-Yagi, vertical pattern, 0dB = 12,53dBd

4 x 5-El.-Yagi, vertical pattern, 0dB = 15,61dBd