Details 2-El.-4m-Yagi 3-El.-4m-Yagi 4-El.-4m-Yagi (12.5+50 Ohm)
5-El.-4m-Yagi (28+50 Ohm) 6-El.-4m-Yagi 7-El.-4m-Yagi (28+50 Ohm) 9-El.-4m-Yagi

Version 1: 6-El.-28-Ohm-70MHz-Yagi, DK7ZB, 5.10-m-Boom

Version 2: 6-El.-50-Ohm-70MHz-Yagi, DK7ZB, 4.30-m-Boom (see below)

Gain 10.22 dBd,  F/B 19 dB

High Gain, Broadband design

Boomlength 5,10 m

The 6-El.-28-Ohm-Yagi built by Mark, CT1FJC

The 6-El.-Yagi was built by Graham, G8HVY (below the 4m-Yagi is a 6m-Yagi with the same design)

The Yagi built by Hans, ES5TAW. On the roof ES5JR as helper

Graham, G8VHY has "armed" to a stacked array of 2x6-El.-Yagis!

Elements

Element-position 

 Element-length (8mm) Element-length (10mm)

Element-length (12mm)

Ref

0mm

 2100mm 2095mm

2090mm

Rad

555mm

 2034mm 2028mm

2023mm

Dir 1

1170mm

 1968mm 1960mm

1951mm

Dir 2

2350mm

 1914mm 1904mm

1896mm

Dir 3

3835mm

 1883mm 1873mm

1863mm
Dir 4 5105mm 1863mm 1853mm 1843mm

Version 2: 6-El.-50-Ohm-70MHz-Yagi, DK7ZB, 4.30-m-Boom

Gain 9,4 dBd          F/B: All backlobes > 30 dB!

High-Gain design, narrow bandwidth, excellent pattern

 

 

 

 

 

The picture left shows 

the Yagi built by

 Chris, PA2CHR

during a VHF-Expedition as

 Z3/PA2CHR

Elements

Element-position 

 Element-length (8mm) Element-length (10mm) Element-length (12mm) Element-length (1/2 ')

Ref

0 mm

 2106 mm 2100 mm 2098 mm 2098 mm

Rad

570 mm

 2074 mm 2054 mm 2048 mm 2041 mm

Dir 1

850 0mm

 2008 mm 1996 mm 1988 mm 1984 mm

Dir 2

1725 mm

 1957 mm 1947 mm 1938 mm 1935 mm

Dir 3

3050 mm

 1945 mm 1935 mm 1926 mm 1923 mm
Dir 4 4265 mm 1874 mm 1864 mm 1850 mm 1846 mm