QFH
Introduction
Matching
Simulations
Dimensions
Groundplane
Pictures
Related:
Simple helicoidal
Builder | Frequency | Link | Description |
on6jc | Photos | Computer generated images of the antenna | |
on6jc | Photos | More computer images explaining the template-built QFH | |
on6jc | 137 MHz | Photos 1 | Images of the coax cable version of the antenna |
on6jc | 137 MHz | Photos 2 | Images of the copper tubing version of the antenna |
Ivan | 137 MHz | Ivan | Images of Ivan's version |
on7eq | 144 MHz | ON7EQ, 2m | Images of the copper tubing version of ON7EQ |
on7eq | 435 MHz | ON7EQ, 70cm | Images of UHF copper tubing version of ON7EQ |
Balthazar | 137 MHz | Balthazar | Images of Balthazar's version |
g3lmo | 137 MHz | Nev G3LMO | Nev's version of the antenna, with an separate balun. |
Ekkehard | 137 MHz | Antena DNA | Portable construction from Ekkehard |
Vaisala | 1575 MHz | Vaisala GPS | The Vaisala beacon's GPS front-end uses a QFH too, at 1700 MHz |
(c) John Coppens ON6JC/LW3HAZ |