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Multiband vertical HF antenna


The antennas may be installed at height near one meter above the ground. Resonance counterpoises should be used at this placement
post 30 Apr 2024
Multiband vertical HF antenna

Antenna Vertical Links

188



A low cost fishing pole vertical antenna
On 7 and 10 MHz the performance of a ground mounted vertical is good compared to a typical dipole at 10 Metres above ground

Alte prestazione sulle bande basse
Sulle bande piu basse l'utilizzo di verticali poste in prossimita' del suolo e molto vantaggioso

Antena vertical para 10, 15 Y 20 Mt
Two coils that we will mount on PVC pipes, 75 mm. in diameter and about 12 cm in length, winding together 36 turns of 1.5 mm diameter varnished wire




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

A simple SWR Meter is to be used at HF

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