Hits
Un commutatore per sloper
Commutare alcuni sloper per le bande basse senza aumentare il numero di discese di cavo cossiale
post 10 Jul 2024
Antenna Vertical Links →
T2LT for the 10m Band
The construction is very easy to handle. T2LT stands for Tuned Transmission Line Trap Antenna. The principle corresponds to the sleeve dipole or the coaxial dipole
Three Meter Flex Vertical for 40 meter
This antenna is about ten feet 3m tall 0.075 l'ambda on 40m because the capacitance hat is a tall pyramid shape
Short Vertical Antennas for 3 bandsIl quarto d'onda raccorciato le misure sono in millimetri, e poco meno di tre metri per la gamma 14 MHz. La risonanza per le gamme 14 e 21 MHz e' ottenuta mediante due bobine trasversali, terminate in una capacita' costituita da tre bacchette disposte a ventaglio
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The construction is very easy to handle. T2LT stands for Tuned Transmission Line Trap Antenna. The principle corresponds to the sleeve dipole or the coaxial dipole
This antenna is about ten feet 3m tall 0.075 l'ambda on 40m because the capacitance hat is a tall pyramid shape
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