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-Ohm (1,50m)  5-Ele.-28-Ohm (1,80m) 5-Ele.-28-Ohm (2,00m) 6-El.-28-Ohm (2,40m)
6-El.-28-Ohm (2,60m) 7-Ele.-28-Ohm (3,00m) 7-Ele.-28-Ohm (3,30m) 8-Ele.-28-Ohm (4,35m)

8x6-Element-DK7ZB

 at SK3W

Whow... what a tower!

Link

6-Element-Yagi for the 2m-Band with the 28-Ohm-DK7ZB-Match

 

2,40m-Boom      9,9dBd        24dB F/B

 

DO1IR built up the 6-Ele.-Yagi and tested the reflection with the HP-Networkanalyzer HP 8713C:

Elementpositions:

Refl Rad Dir 1 Dir 2 Dir 3 Dir 4
0 390 640 1150 1785 2380

Elementlengths, Radiator always 10mm diameter! 

Diameter Refl Rad (10mm) Dir 1 Dir 2 Dir 3 Dir 4
10mm 1017mm 971mm 935mm 907mm 905mm 876mm
8mm 1019mm 971mm 942mm 914mm 912mm 884mm
6mm 1021mm 971mm 948mm 921mm 920mm 892mm
4mm 1023mm 971mm 955mm 930mm 929mm 903mm