EAntenna Monoband LFA Yagis for 144 MHz

model LFA9 s 9 elementy při délce boomu 4.50 m a ziskem téměř 20 dBi (ve výšsce 10 m).

(Výrobce nabízí další modely s 5, 7, 8, 11, 13, 16 elementy)

LFA Yagis differ significantly from traditional Yagi designs.

The LFA ("Loop Fed Array") has a rectangular dipole with 1? length. The dipole lies flat on the boom in the same plane
as the parasitic elements. The outer sides of the dipole are parallel to the boom and are designed to be exactly in
phase opposition (±180°).

This causes signals on these sides to cancel each other out, resulting in significantly reduced side lobes, low G/T
values, and a better front-to-back ratio.

This concept can be applied to almost any boom length.

LFA Yagis have 50? impedance and do not need any lossy transformations

We offer the 144LFA Yagi antennas in different variants. So you can choose the right antenna for your specific
application.

LFA5 with 5 elements and 1.82 m short boom for small space requirements

LFA7 with 7 elements and still manageable boom length of 2.95 m

LFA8 with 8 elements and a boom length of 3.77 m

LFA9 with 9 elements at a boom length of 4.50 m and a full gain of almost 20 dBi above ground (e.g. at 10 m height).
A guy wire is not yet needed

LFA11 with an already quite stately 6.5 m boom and 11 elements. The required material for bracing the boom is
included in the delivery.

LFA13 with 13 elements and a guyed boom of 7.90 m length

LFA16 with a mighty 10.92 m long guyed boom and 16 elements