Anyone made a PVC pipe / coax QFH antenna? : r/RTLSDR
QFH Antenna for 137MHz NOAA Satellite Reception | gammalogic
FEDI-EA - Antena QFH - DIGICLUB, Boletín Informativo de Comunicaciones Digitales
Quadrifilar helicoidal antenna - Copper pipe version of the QFH
QFH Antenna for 137MHz NOAA Satellite Reception | gammalogic
Aeronetworks sro - Airborne Linux: Parasitic Quadrifilar Helical Antenna
Weather satellite
Sam on Twitter: "@luciangasparini @cql1983 @BH1WZB These measurements are similar to the most recent QFH I've built (https://t.co/tRbM4Ksbtu). It's worth experimenting with different loop sizes! I've also updated the @oshpark project page
QFH Antenna and my first reception of NOAA! | Lets Hack It
Help Getting the Right Dimensions for QFH Antenna : r/RTLSDR
The Antenna - wx
Quadrifiliar Helix Antenna for 137MHz | I used the calculato… | Flickr
NOAA Satellite Signals With a PVC QFH Antenna and Laptop : 9 Steps (with Pictures) - Instructables
QFH Antenna and my first reception of NOAA! | Lets Hack It
Quadrifilar helicoidal antenna - Javascript on-line calculator
Quadrifilar helicoidal antenna - Javascript on-line calculator
Quadrifilar Helix Overview - YouTube
Quadrifilar helicoidal antenna - Fotos de la versión de ON7EQ
GitHub - ODZ-UJF-AV-CR/QFH-Antenna: Quadrifilar Helix Antenna for 868 and 433 MHz ISM bands. Mainly used for balloon telemetry.
QFH-Quadrifilar Helix Antenna Basics,QFH Antenna calculator
1.6 GHz ebay QFH antenna "kit". ideas to make it easier to be successful.
Quadrifilar helicoidal antenna - Javascript on-line calculator
