Jochen Bauer
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Not only is the magnetic loop a popular receiving antenna for the AM bands (long-wave and medium-wave in Europe, medium-wave in North America), it is also a good choice when it comes to feeding the signal of a home transmitter (commonly known as "Heimsender" or "Heimsenderlein" in the German language part of this forum) into an AM radio set that only has a build-in AM antenna (loop or ferrite rod). This paper is about calculating signal levels provided to AM receivers by home transmitters powering a magnetic loop. It's specific goals are to - provide the reader with ready to use formulas to calculate the equivalent radio frequency signal level (in µV/m) provided to the receiver - give the reader an idea of the typical output power needed by a home transmitter - give estimates on possible interference with other nearby receivers and undesired emission of electromagnetic radiation - present a cost-efficient way to approximately measure radio frequency noise levels in the AM bands Attachments:
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