I have designed and built an 8 element beam for ADS-B
Simple to build - no guesswork, no tuning - designed with MMANA Antenna file here
http://www.users.on.net/~silver.eagle/8EL_ADS-B.maa (http://www.users.on.net/~silver.eagle/8EL_ADS-B.maa)
Just right click / save file as
(http://www.users.on.net/~silver.eagle/images/ADS-B_8EL.JPG)
Most of my signals come from the Nth/NTH-E of here. I have a homebuilt collinear which works fantastic, and this beam increases the plots on the edge of range. 250-300 nm
This might be the answer for some users with difficult locations
Note - The elements are 2 mm diameter copper wire THIS IS VERY IMPORTANT
Different size wire will affect performance
Mike
Hi Mike, good for you. Why don`t you put the design for the collinear as well? I`ll knock one of these up and let you know how it runs - although at the moment i`m only tracking birds!! Bi now and thanks, Roger
This is the collinear I built, works fantastic
http://tech-software.net/ (http://tech-software.net/)
Just scroll down towards the bottom of the page - "1090 mhz vertical"
Heres a similar design
http://translate.google.com.au/translate?hl=en&sl=pt&u=http://www.airlomba.net/index.php%3Fpag%3Dprojects&ei=TtrIS5-XFo7u7AOulPnMDA&sa=X&oi=translate&ct=result&resnum=2&ved=0CAoQ7gEwAQ&prev=/search%3Fq%3DAirlomba%2BDevelopment%2BBureau%26hl%3Den%26sa%3DG (http://translate.google.com.au/translate?hl=en&sl=pt&u=http://www.airlomba.net/index.php%3Fpag%3Dprojects&ei=TtrIS5-XFo7u7AOulPnMDA&sa=X&oi=translate&ct=result&resnum=2&ved=0CAoQ7gEwAQ&prev=/search%3Fq%3DAirlomba%2BDevelopment%2BBureau%26hl%3Den%26sa%3DG)
Mike
Hi Mike_Tassy
Nice beam... but I was unable to get the file 8EL_ADS-B.maa
By the way, could You tell me what extention is maa ?
Thanks in advance. Juan
I fixed the link to 8EL_ADS-B .maa file above
It is antenna model file for MMANA the antenna modelling program
http://mmhamsoft.amateur-radio.ca/pages/mmana-gal.php (http://mmhamsoft.amateur-radio.ca/pages/mmana-gal.php)
Mike
Hi Mike_Tassy
Thaks. Already downloaded the file and MMANA.
Tomorrow I will try to make the antenna.
Best regards.
Mike_Tassy,
Are you still using that original antenna design of yours? Do you have any more information to share with us, like performance, range, beam width, etc?