Construction  12-Ele.-28-Ohm 13-Ele.-28-Ohm 14-Ele-28-Ohm 16-Ele.-28-Ohm
17-Ele.-28-Ohm 19-Ele.-28-Ohm 21-Ele.-28-Ohm 23-Ele.-28-Ohm 27-Ele.-28-Ohm
 

 

12-Element-28Ohm-

DK7ZB-Yagi 

for 432MHz

 

Data for a single Yagi:

Gain 13,8dBd   3dB-angles: hor=28,8   ver=30,6

Best stacking distances: 

1,35m vertical       1,45m horizontal

--------------------------------

8x12-El. stacked at Contest-Crew 

OK1KRQ

Gain of the group  >21dBd

 

 

 

 

4x12-Element-Yagi-Group

by  Hans-Joachim, DF1JM

 

Link to details on his Homepage:

 

DF1JM

Two stacked 12-Element-28Ohm-Yagis

for 70cm, built by  Wolf,  DK1IP

 

Professionell measuring by Wolf, DK1IP (Spectrumanalyser with Trackinggenerator Advantest R3361C and R&S SWR-Bridge ZRB2) gives SWR <1,04 at 15m-Aircell-7 low-loss cable for a single Yagi.

 

Element

Element-Position

Element-Length (10mm)

Element-Length (8mm)

Ref

0mm

332mm 334mm

Rad

115mm

325mm (12mm)

D1

175mm

307mm 310mm

D2

345mm

291mm 294mm

D3

570mm

284mm 287mm

D4

845mm

277mm 280mm

D5

1130mm

275mm 278mm

D6

1415mm

273mm 276mm

D7

1700mm

273mm 276mm

D8

1985mm

271mm 274mm

D9

2255mm

277mm 280mm

D10

2480mm

260mm 263mm