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Medium Wave Loop ( Frame ) Aerial


This Loop antenna works a real treat for medium wave dxer's. Peak the wanted signal with the variable capacitor C1. Turn the Loop to null interference.


 
Graphic Illustration of the Aerial.

 

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Electrical Diagram of the Frame Aerial

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Constructional Notes:

Build the frame with plywood and 1 inch by 1 inch square timber.
Cut 7 notches in the frame 'paddles' 15 mm apart, to accomadate the seven windings of the suare loop.

Termnate the 7 turn loop in a 500 pF variable capacitor.
Wind a single turn coupling loop around the centre winding.
Terminate the coupling turn in either 300 ohm ribbon or 75 ohm coax to the Receiver.
Peak Signals with C1 , Null interference by swivelling the loop for best reception.

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While every effort has been made to check this information for errors, I accept no responsiblity for any problems that may result from using this information