Hits
5 band pipe vertica
This is a quick way to add 80 meters to the 5 band pipe vertical that is half wave on 20 meters
post 25 Jan 2024
Antenna Vertical Links →
Vertical HF multiband antenna V8
Height 6,5m Impedance in point of power supply 50 Ohm SWR 1.5:1 or less Power limit: 1000W Bandwidth at 2:1 SWR and less ? on 10M, 12M, 15M, 17M, 20M, 30M and 40M - whole band on 80M - 80 kHz
Verticale per 14 mhz
La bobina dicarico e'costituita con un filo di rame, 9 spire del diametro di 0,8
Verticale per i 40 - 17 metri
I risultati migliori si ottengono con un buon piano di terra formato da 10 o meglio 20 radiali
HF Exponential Cage Antenna
Wire skeleton structure with 8 vertical wires
189
Height 6,5m Impedance in point of power supply 50 Ohm SWR 1.5:1 or less Power limit: 1000W Bandwidth at 2:1 SWR and less ? on 10M, 12M, 15M, 17M, 20M, 30M and 40M - whole band on 80M - 80 kHz
La bobina dicarico e'costituita con un filo di rame, 9 spire del diametro di 0,8
I risultati migliori si ottengono con un buon piano di terra formato da 10 o meglio 20 radiali
Wire skeleton structure with 8 vertical wires
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
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