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20 Meter Top Loaded Vertical


A top loaded vertical antenna has several advantages over the conventional vertical, but the biggest advantage is that it's shorter in length
post 29 Apr 2024
20 Meter Top Loaded Vertical

Antenna Vertical Links

189



Verticale Multibanda per i 10-15-20-40-80 metri
Per la sua realizzazione ho usato due tubi da m 5,20 l'uno, giuntati per una lunghezza totale di m 10, 15

Verticale per 30/40 MT
I radiali , nel mio caso,sono 6 ( 3 per i 30 e 3 per i 40 )

Verticale trappolata per 12 e 17 metri
La misura dei radiali per i 12 metri e' all'incirca di 3,10 m, mentre per i 17 metri la misura e' all'incirca di 4,20 metri

Vertikal for 20 meter
Parallel resonant circuit, wherein the coaxial cable was rolled up and the coaxial cable outer shell was tuned with a capacitor to the useful frequency TRAP

Vertikalantenne fur 40 und 80m
Vertical multiband antenna for 40 and 80m. However, a groundplane requires a good radial network, otherwise it will not work well. I laid some fence mats and 10m long wires around the base


Linear-loaded-short-dipole-21mhz

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

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

Atu balanced feeder antenna system

Atu balanced feeder antenna system An ATU has the advantage of bringing the feeder-antenna system to resonance, act as a band pass filter both on receive and transmit and a low SWR