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.
Electrical Diagram of the Frame Aerial
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.
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