Helically Loaded Magnetic Loop Antenna

This magnetic loop antenna is about 50% smaller in diameter then a text book magnetic loop. The performance is outstanding, it compares or is better then a 1/2 wave dipole mounted 1/2 wave above ground. It is also directional, when turned with a rotor it quite often changes around 10 to 12 db from the plane of the loop to broadside.

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[oh1sdr]

Really nice Richard! Is there a chance that some times the difference between the 40m dipole and the magloop is because the orientation of the antennas? When you did the comparisons, were the antennas oriented the same way (ex. north-west)? The results are really awesome, but I doubt that the loop beats the dipole for nothing, no fence! Anyways, have built several magloops and seems I have to build one more, tnx for that! Very nice project, tnx for the great vids!

73 de Janne OH1SDR

[richardef]

@oh1sdr

Actually the loop is the same or better 95% of the time, probably due to the fact that I can rotate the loop for best direction. Once in a while the 390 ft dipole is just a few db better due to the gain lobes in certain directions.

I have checked and compared this now several hundred times with the same results.

[VoxPandemonium]

Wow! This is the loop to build, impressive. Thank you for sharing this design,

[DataID]

Excellent...

[VictoreCelia]

cool video

73