Inspired by Milan OK7GU, the goal is to build an universal antenna controller – for different types of rotor, different motor, encoder
Phased wire vertical antennas for 40 meters band
An antenna project to obtain a bigger signal on the 80 Meter (3.5 to 3.8 MHz) amateur radio band
A 21 MHz Four Square Beam Antenna This popular antenna for the lower bands, can also work well on 15 meters, QST Article
DX cluster monitoring tool. Filter DX spots from packet radio cluster. Windowd freeware
The EA5AVL 40M Compact 4-Square Antenna was designed to provide excellent DX communications on the 40m band, utilising readily available components and be relatively easy to construct
A project for a 4 square vertical array receiving antenna
A simple 2 element beam antenna for the six meters band in Italian
A four square antenna for the 40 meters band with pictures, project history and antenna design
An home made remote antenna switch project capable to read the current working frequency from the radio and to change antenna accordingly