QFA Antenna, 70cm Band

General

After reading an interesting artikel about Quadrifilar Helical Antennas I got inspired and wanted to print one  

The creation of this antenna described in detail at QFA Antenna. Models and simulations are available on GitHub: quadrifilar.

Test in : anechoic chamber qfa-9-and-10-in-anechoic-chamber

Printing and building

1. Follow instruction published here: https://sa0pej.wordpress.com/3d-print-and-build-qfa-antenna/

Version History

• 2024-05-05 First release
• 2024-05-06 Right hand helix was missing pins to mount base
• 2024-05-18 A side had 4mm too short leg in helix pairs