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144 MHz Omnidirectional Horizontal Antenna
These antennas can be stacked to increase gain at low elevation angles and to decrease sensitivity to noise from high elevation angles
post 18 Mar 2024
Antenna Collinear Links →
A coaxial collinear antenna for 70 CM
The guiding principle is that we have multiple 1/4 wave elements fed in series , the radiation from each adds in phase to produce a large vertically polarised omni-directional antenna with bstantial gain
802.11 2.4Ghz Low-Power Vertical Antenna
Collinear antenna, that was based off of UHF repeater Antennas. This one is more suited for 802.11 operation
Antena Multibanda Colinear para HF
A build of a 2-element 1/2 wave collinear J-Pole a resonant frequency toward the lower end of the 2-meter Amateur band and a VSWR of 1.5:1 or better over the entire band
Antenna collineare omnidirezionale ad 8 dipoli per i 2.4GHz
Iniziamo a levare il conduttore centrale del cavo sat, rimuovendo sia la calza che l'isolante interno del centrale
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The guiding principle is that we have multiple 1/4 wave elements fed in series , the radiation from each adds in phase to produce a large vertically polarised omni-directional antenna with bstantial gain
Collinear antenna, that was based off of UHF repeater Antennas. This one is more suited for 802.11 operation
A build of a 2-element 1/2 wave collinear J-Pole a resonant frequency toward the lower end of the 2-meter Amateur band and a VSWR of 1.5:1 or better over the entire band
Iniziamo a levare il conduttore centrale del cavo sat, rimuovendo sia la calza che l'isolante interno del centrale
Noise suppression with X-phase II This device similar devices are known as QRM eliminators or noise killers, makes it possible