Antena multibanda 15-40-80 & 20m

An HF antenna, and this antenna does not exceed the total length of 23 meters and the performance of this antenna is excellent
post 29 Mar 2024
Antena multibanda 15-40-80 & 20m

Antenna 40 Meter Links


The Half Square Antenna
The antenna is built using stranded, black electrical wire

Antenas encurtadas tipo rigido com bobinas de compensacao
An antenna is intended to work in the 40-meter directional Yagi type cut to the frequency of 7,010 to 7,100 MHz, with a length of 4 meters. per element and with the deployment of a coil at 2 meters. from the center

Battle creek special 40/80mhz
The Battle Creek Special is a 3-Band-vertical Marconi-antenna for the bands 40 m/80m/160m

Compact only 9m dipole for 40m band
Total length only 9m40 about less than a 20m dipole, It is a center loaded antenna

Dipole short V rotable for 7 mhz
Dipole short " V " rotable Lower vertical elevation angle for about 10 degrees 2 fishing rods with 7 m long, I created a dipole for 7 MHz


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