YU7EF 6m(6elm) and 4m(7elm)

 Duo band antenna

on a 6m boom.

Dimensions of 4m(7elm)+6m(6elm) duoband ANT.

Here you will find the results on YU7EF duo band 6,4m  6+7elm yagi with 12mm elements on the same 6m long boom  build by OZ1DJJ.

Pop Have on he's web www.yu7ef.com a 5 elm 4/6m duaband Yagi  made of taper elements. I ask Pop to make another design, with a 6m long boom and 12mm Alu tubing,  he was so kind to provide me with this information after some days of calculations, Thanks Pop for taking your time !

 Here is data of YU7EF Pop 6 elm(50Mhz) and 7elm(70Mhz) 4+6m douband with 12mm Alu tubing

More pic's on OZ1DJJ Duo band antenna  will soon come!

Dobbeltklik for at tilføje fotos

 

Measurements on 6m,4m 6+7elm yagi (coming ASAP):

All measurements here under is made when antenna only mount as on pictures..

Dobbeltklik for at tilføje fotos

Design:

Az plot 4m	Az plot 6m	4m 7elm SWR/RL plot	6m 6elm SWR/RL plot

YU7EF Dimension using 12mm alu tubing for all elements: