Magnetic Loop Antenna Band Selection.

Описание: Since my magnetic loop antenna uses an FT-140-43 toroid for feeding, I have always found it bothersome to have to add of remove turns to the toroid for band selection. Finally I decided to build a band selector described in this video.
Magnetic Loop build:    • Building a Magnetic Loop Antenna For My Ap...   and    • Building a Magnetic Loop Antenna For My Ap...  
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