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4m Halo Antenna


Using aluminium tubes from 4 and 6 mm The boom (H) is made with an aluminium profile 10/10 mm square section
post 10 Jun 2024
4m Halo Antenna

Antenna Halo Links

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DIY VHF Loop Antenna
The antenna is up and running. What a great antenna, and one of my best builds

Halo antenna for 70Mhz
The halo is an omni-directional antenna with horizontal polarization. This is practically a horizontal loop, namely a half-wave folded dipole

Halo stack for 70 cm on the cheap
Something that would be omni directional and horizontally polarized was my aim

Antenne halo sur 50 mhz



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