Building a Longwire antenna

Initially tried to just throw up a length of wire, it kinda worked and I could hear a few more stations but it also pulled in a huge amount of noise generated by the nearby houses and electrical junk
post 27 Apr 2024
Building a Longwire antenna

Wire & Random Antenna Links


Dipolo a "V" invertita trappolato per 40 e 80 metri
La prima parte, dal centrale o balun alla trappola, risonante sui 40 metri, che avrA' una lunghezza di circa 9,90 metri per braccio, e l'ultima parte, dalla trappola all'isolatore, che porta in risonanza tutto il dipolo sugli 80 metri, con una lunghezza di circa 7 metri per braccio queste sono lunghezze che variano da installazione a installazione

It is important to erect the antenna as high as possible,certainly above surrounding roof levels

Dipolo multibanda G5RV
Questa antenna risuona sui 10-15-20-40-80

G5RV shortened


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