Feeding and Matching
There are effectively two types of feed arrangements, balanced and unbalanced. Balanced feed line are readily available in various impedances (75/300/450 Ω), but the use of a balanced feedline presents some physical requirements that are not easy to get around
post 12 May 2023
Antenna Yagi Links →
Monoband yagi for 80 meters and 40 meters
Loading coils for the 80m elements consist of 13 turns of 18 cm of diametre with a total coil length of 20 cm. The conductor is a copper Cu tube with an outer diameter of 6.5 mm
Minibeam Geometry Basics
There is a natural progression of the geometry of the mini-beams deriving from the basic yagi, which in itself owes a lot to the common dipole
New 17M yagi home brewed
The beam has only one feedpoint with 50 Ohm and has an open-sleeve element for 12 m
Regolazione del gamma macth della yagi
La prova della lampadina
Portable 3-Band Yagi photo
70
Loading coils for the 80m elements consist of 13 turns of 18 cm of diametre with a total coil length of 20 cm. The conductor is a copper Cu tube with an outer diameter of 6.5 mm
There is a natural progression of the geometry of the mini-beams deriving from the basic yagi, which in itself owes a lot to the common dipole
The beam has only one feedpoint with 50 Ohm and has an open-sleeve element for 12 m
La prova della lampadina
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