2 Element Yagi

[314]

Was wondering if anyone has dimensions for a 2 element yagi on 11 meters. Space limits a 3 element or higher. I have the Maco BA1 dipole, thinking of adding another element and make it a 2. Having a hard time finding any info for a 2 element yagi for 11 meters. Any ideas or info.Thanks

 

[sp5it]

Google for HB9CV.
Best option if we talk about 2 element.
Mike

 

[hotrod]

Was wondering if anyone has dimensions for a 2 element yagi on 11 meters. Space limits a 3 element or higher. I have the Maco BA1 dipole, thinking of adding another element and make it a 2. Having a hard time finding any info for a 2 element yagi for 11 meters. Any ideas or info.Thanks

ive always wondered how that maco BA1 worked.. i too thoght about doing what you said. idk kmowe spacing or anything but id try a boom lenth of 6 feet min

 

[BJ radionut]

http://www.antentop.org/w4rnl.001/ant6.html
Using a reflector and Driven element.
However, (Bill Orr) states in His handbook, if your interested in slightly more forward gain and F/B rejection is not a concern using a director at .11 wavelength spacing offers this (27.400 = 4.38 ft spacing) Director at 16.42 ft length
The driven element is 17.31 ft.
Info from the 19th edition of his Radio Handbook.
Forward Gain with Director is about 5.3 dBd with F/B ratio about 10dB
Forward Gain with Reflector is about 4.3 dBd with F/B ratio about 10-15+dB but requires GREATER SPACING (.2 wavelength spacing)

 

[BJ radionut]

Formulas: Driven Element Length = 476/ freq (MHz)
Director Element Length = 450/ freq (MHz)
Element Spacing Distance = 120/ freq (MHz)

 

[HomerBB]

Years back I built several of these 2el yagis and preferred the driven/director setup.



I ended up sticking with Moxons for a two element.
Better smaller.

 

[WECSOG]

According to KA5VAI, reflectors don't reflect anything anyway.

 

[314]

Thanks for the replies, I have a 6ft boom and the 2 elements and gamma. Would the boom need to be shorter so the mounting bracket is in the middle of the boom, or could I have it on a 6ft boom and have the bracket @ the end of it.

 

[WECSOG]

Bracket on the end is fine as long as it balances ok.

 

[snow bird]

Years back I built several of these 2el yagis and preferred the driven/director setup.

View attachment 35737

I ended up sticking with Moxons for a two element.
Better smaller.

Homer BB What Calculator are you using?

 

[314]

I'm interested in finding out how a 2element will do, never made a thought to make one. I'll have a better understanding after today when I put it together. I'll have to try it on vertical also, but flatside is my main reason for trying it out

 

[HomerBB]

Homer BB What Calculator are you using?

http://www.gb3pi.org.uk/hf.html

 

[snow bird]

http://www.gb3pi.org.uk/hf.html

Thank You Sir

 

[manonegra]

Was wondering if anyone has dimensions for a 2 element yagi on 11 meters. Space limits a 3 element or higher. I have the Maco BA1 dipole, thinking of adding another element and make it a 2. Having a hard time finding any info for a 2 element yagi for 11 meters. Any ideas or info.Thanks

4 1/2 FOOT BOOM AND USE A DRIVEN ELEMENT WITH A DIRECTOR THATS IT YOU WILL HAVE A GAIN OF 5 DB.

 

[G-Golly Wally]

Look this guy up on Utube, he homebrewed one.