Construction Details

2-El.-12,5-Ohm (0,35m)   

2-El.-28-Ohm (0,60m)

3-El.-12,5-Ohm (1,90m)

3-El.-28-Ohm (1,90m)

3-El.-28-Ohm (2,50m)

4-El-12,5-Ohm (2,90m)

4-El-12,5-Ohm (3,60m)

5-El.-28-Ohm (4,50m)

5-El-12,5-Ohm (6,00m)

5-El-18-Ohm (6,00m)

6-El.-28-Ohm (7,20m)

7-El.-28-Ohm (9,20mm) 8-El.-28-Ohm (12,30m) 9-El.-28-Ohm (14,00m)
  new 4-El-28-Ohm (2,20m)  

3-Element-28-Ohm- Yagi with 2,50m-Boom

Short data: Gain 6,5dBd, F/B >15dBd, bandwidth 500KHz (49,9-50.4 MHz) at SWR < 1.5

Elements 12mm

Match with 2 x lambda/4-75-Ohm-coax in parallel to a grounded socket, feedpoint impedance 50Ohm.

 

 

Element

Element-position 

Element-length 

Ref

0mm

2940mm

Rad

1320m

2810mm

Dir

2500mm

2660mm