Building a QFH-Antenna and How I Did It : 7 Steps (with Pictures) - Instructables
GitHub - errikosmes/SDR-Projects
Helical Quad Antenna for Weather Satellites | Housedillon
F4BPP Homepage
How To Build A QFH (Quadrifilar Helix Antenna) to Download Images From Weather Satellites
QFH Antenna for 137MHz NOAA Satellite Reception | gammalogic
Designing an Open-Ended Quadrifilar Helix
Help Getting the Right Dimensions for QFH Antenna : r/RTLSDR
OH2GVB Quadrifilar Helical Antennas
F4BPP Homepage
Design of Quadrifilar Helical Antenna for Satellite Communication Applications
EggBeater II Antenna - Resource Detail - The DXZone.com
Aeronetworks sro - Airborne Linux: Parasitic Quadrifilar Helical Antenna
Quadrifilar helicoidal antenna - Javascript on-line calculator
QFH Antenna and my first reception of NOAA! | by Lucas Teske | Medium
Anyone made a PVC pipe / coax QFH antenna? : r/RTLSDR
BE Satcom on Twitter: "@t0sspint My design is based on this one. For the driven elements I used pieces from an old tape measure. Good luck! https://t.co/T68wssRqx6" / Twitter
Antena QHA para satélites polares. (30STV)
Building a QFH-Antenna and How I Did It : 7 Steps (with Pictures) - Instructables
PDF) Design of a Dual-Band Quadrifilar Helix Antenna
NOAA Satellite Signals With a PVC QFH Antenna and Laptop : 9 Steps (with Pictures) - Instructables
WX Satellite Img Downlink Project
NOAA Satellite Signals With a PVC QFH Antenna and Laptop : 9 Steps (with Pictures) - Instructables
Quadrifilar helicoidal antenna - Javascript on-line calculator
