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Antenna morgain 40-80m
Antenna bibanda per i 40-80m puo' essere fatta anche per i 10 e i 20 metri e puo' fornire ottime prestazioni anche sui 15 metri, ma il pregio rimane la lunghezza dei soli venti metri lineari
post 19 May 2024
Antenna Multibands Links →
Dickerdipol antenna multibands with balun
The 5 radiating wires are spread to 1.2 m. with un balun 1:4
Dipolo acortado
The calculation of the linear load is made by adding 30% to 30% removed from the irradiator, the dimensions being as follows, Total length of the irradiator: 5, 51 meters Length of each linear load: 1.54 meters
Dipolo HF 80m - 60m - 30m
Ho deciso di costruire un dipolo che mi permettesse di operare sulle gamme 80m-60m e 30m
G5RV antenna 40/10 & 80m - 40-10m
I bracci terminali possono essere istallati o paralleli al terreno oppure a v invertita
Multiband wire antenna
Multibands wire antenna with linee feed 600 ohm
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The 5 radiating wires are spread to 1.2 m. with un balun 1:4
The calculation of the linear load is made by adding 30% to 30% removed from the irradiator, the dimensions being as follows, Total length of the irradiator: 5, 51 meters Length of each linear load: 1.54 meters
Ho deciso di costruire un dipolo che mi permettesse di operare sulle gamme 80m-60m e 30m
I bracci terminali possono essere istallati o paralleli al terreno oppure a v invertita
Multibands wire antenna with linee feed 600 ohm
Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band
Rx antennas 4Square Rx Vertical Array My frequency design of 1.825 MHz a 90 degrees line would be 33,70 metersinstead of the previously calculated 33,27 m
A simple SWR Meter is to be used at HF An SWR meter provides information about how well matched is your antenna with the transmitter and how well power is being radiated