Purpose built 1090 mhz antenna (like Flightawsre 26 inch antenna) perform better than DIY 1/4 wavelength antennas (like spider and cantenna). The My Flightsware antenna gets about 30-40% more planes and maximum range than DIY antennas.
Inspite of above fact, DIY antennas I have posted are
- Fun to make
- Very easy to make
- Negligible cost
- Perform amazingly good inspite of their very simple design and very small size
This is what I experienced. Yours and other’s experiance may somwhat differ.
Cantenna gave me about 10% better plane count & maximum range compared to Spider built on SO239 connector.
Quick Spider gave me about 15-20% more plane count and maximum range than cantenna and spider built with SO239 connector.
Coaxial Collinear antenna (CoCo) is easy to make, but hard to get right.
Only a small percentage of lucky coco makers end up with a good aerial. Most get the frustrating experience of a “not as expected” or “not as claimed” or a “hopeless” aerial when they put it to use.