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DIY Automatic Tune Magnetic Loop Antenna By GM4WZG
DIY Automatic Tune Magnetic Loop Antenna By GM4WZG

DIY Automatic Tune Magnetic Loop Antenna By GM4WZG

The Small Do It Yourself Automatic Tune Magnetic Loop Antenna that he made is only 1 meter in diameter yet it has more or less the performance of a full size dipole – and has an amazing control box.  

Magnetic Loops are easy in concept but like many things, you can either make a super-deluxe version with automatic controllers or just keep it simple.

The version presented here is portable, and has a fully automatic tuning system that links to the CAT port of an FT-817.

A single press of a button initiates a tuning sequence and that’s all that is needed to get this antenna on frequency.

For an antenna that is one meter across, standing 1.5 meters above ground this is a formidable result. You’re going to be 2 s-points down on a doublet/dipole on 40m but if you’re operating from a hotel balcony, portable in the countryside or just at home where normal antennas are not allowed, it is not just a compromise antenna, it is a real antenna.

Check out the full story at http://www.gm4wzg.co.uk/antennas.html