Wednesday, August 21, 2013

Moxon 2m ,70cm dualband antenna



Baofeng UV-5R with SO 50 satellite  antenna. Moxon +5el yagi

7 comments:

Alexander Morvay said...

Pleas diameter elements ?

LY3LP said...

Hi, Alexander, 3mm in diam...

CarlosEduardo.QC said...

Please, 3 questions.
1) Numbers in feet, centimeters or inches?
2) No balun required?
3) I think it is 50 ohms. Thats right?
Thanks a lot

Klemensas Zemaitaitis said...

1. in mm....2. no balun....3. 50 ohms...Best DX dear Carlos...

Mark Thompson said...

Is there any connection between the 2m and 70cm antennas?
Regards
Mark, KV8T....

Unknown said...

No physical connection between the 2m and 70cm elements. The 2nd 432 element is a parasitic driven element.
I modeled this with 4nec2. I get 11 dbi on 2m and 12.4 dbi on 432! It appears that the SWR on 70cm is very dependent on the length of the 432 driver and its distance from the 144 driven element. The 2.0 SWR bandwidth is fairly narrow, so you need very accurate measurements constructing this antenna.

Daniel Kadochnikov said...

Hello everybody! I want to make 2+70 moxon antenna with moxon on 144 and 3 el Yagi for 435
Can you recalculate it for 6.5 aluminium wire.
Thanks a lot by UB8JAS