Details for all Yagis 1-El.-50Ohm 2-El.-28Ohm 3-El.-28+50Ohm
4-El.-50Ohm (0,76m) 4-El.-28Ohm (0,76m) 4-El.-28Ohm (0,82m) 4-Ele.-28-Ohm (1,00m)
5-Ele.-28+50-Ohm (1,50m)  5-Ele.-28-Ohm (1,80m) 5-(6)-Ele.-28-(50)-Ohm (2,00m) 6-El.-28-Ohm (2,40m)
6-El.-28-Ohm (2,60m) 7-Ele.-28+50Ohm (3,00m) 7-Ele.-28-Ohm (3,30m) 8-Ele.-28-Ohm (4,35m)

4-El.-28-Ohm-Yagi (1,00m+1,18m-Boom) 

4x4-El.-Yagi (1,18m-Boom)

built by Georg,

DK5QN

Version A with 1m-Boom (Version B see down)

Boom 1,00m   

Gain 7,3 dBd     

F/B 16,5 dB

The 4x4-Element-Group in the 

VHF-September-contest 2008

 

built by  Dirk, ON5GS

 

More pictures on his website:

Link ON5GS

Elementlengths and -positons, updated 13-Feb-2009

Element Position 6 mm 8 mm 10 mm
Ref 0 mm 1040 mm 1036 mm 1032 mm
Rad 230 mm 992 mm 988 mm 984 mm
D 1 495 mm 947 mm 940 mm 933 mm
D 2 980 mm 901 mm 893 mm 884 mm

Details of the radiator and the element-mounting

Version B with 1,18m-Boom

Gain 7,7dB       F/B  >18dB

 

Group of 4x4x4-El.-Yagis

by Peter, DK3CM

7,5dBd gain in all directions
Diameter Reflector  Radiator (10mm) Director 1  Director 2 
4mm 1038mm 962mm 943mm 921mm
6mm 1040mm 963mm 933mm 912mm
8mm 1040mm 964mm 926mm 904mm
10mm 1039mm 964mm 919mm 897mm

Elementpositions

Reflector Radiator Director 1 Director 2
0 265mm 675mm 1160mm