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300 Ohm FM Antenna T Shape Dipole Radio Ant with Spade Terminal for Yamaha Sharp JVC Denon Marantz Vintage Stereo Tuner Receiver – Ancable
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5 Pcs 32cm Length 5 Section Telescopic Am Fm Radio Antenna 180 Degree - Microphone Accessories - AliExpress
Antenna length should be 1/4 or 1/2 of wavelength, so for 500KHz AM radio we need at least 125 antenna length. How does AM radio work? - Quora
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