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80-75 Meter 4-Square Array

The SWR from 3.5 to 3.9 is below 1.5:1, the F/R of the array is 20dB average and with some signals even better
post 04 May 2024
80-75 Meter 4-Square Array

Antenna 80 meter Links →

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Single Support Gain Antennasfor 80 and 160 Meters
On 80 and 160 meters an antenna withmodest gain and good front-to-back (F/B) ratio, along with a steerable pattern,can be very effective for contesting

The 80 Meter Inverted Vee
The 80 meter inverted vee is a common and classic antenna. Like all inverted vees, it requires a single center support

Tower for 80mt 3.650 et 3.780 Khz
Tower tuned on 80m, the terminal capa is 16m high and has a diameter of 2.4m

Un dipolo per le bande basse
Il dipolo e' un classico trappolato, ma va meglio di quelli commerciali che ho provato, costa moltomeno e leva lo sfizio di farselo da se'

160m/80m dual band vertical
This vertical is a good compromise when you want good performance on these two low ham bands

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