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Antenna gp 3,5 MHz a carico lineare

Antenna gp 3,5 MHz a carico lineare
    Questa antenna verticale per gli 80 metri a carico lineare, di 1/2 onda e nata dal bisogno di avere un'antenna con un buon angolo di irradiazione
post 13 Jan 2025



Antenna 80 meter Links

75



Verticale per 80m
La struttura portante è realizzata con tubi in fibra di vetro ma la radiazione proviene da un filo fissato al tubo

Vertical resonant around 3.5 MHz
The combination of wire is resonant around 3.5 MHz. With a 30 uH inductor, the resonance becomes about 1.83 MHz. A series 68-ohm resistor and 16 25 foot radials brings the feed point impedance

Verticale ad un quarto d'onda accorciata
la costruzione di una verticale monobanda, facile da realizzare, per la gamma dei 75/80 m

Shunt-Feeding a Short Tower on 80 and 160m
The shunt design has been through several iterations at my QTH. First was a single wire that was matched for 80m using an omega match


Psion ham software

PSION Greyline Clock PSION Greyline Clock v. 1.0 is a UTC/Local clock showing sunlight/darkness area on the world map

Radioassistance

Radioassistance Radioassistance E Kenwood Dealer, vendita ricetrasmittenti, antenne, parti di ricambio, elettronica

SunCalc

SunCalc SunCalc - sunrise, sunset, shadow length, solar eclipse, sun position, sun phase, sun height, sun calculator, sun movement, map, sunlight phases, elevation, Photovoltaic