Please click your language flag. Bitte Sprachflagge klicken.
  The thread rating is reflecting the best post rating. Have you rated this thread (best post)?

Signal Levels of Loop Antennas for AM Home Transmitters

Ernst Erb Otmar Jung 
Please click the blue info button to read more about this page.
Papers » Basic principles of radio technique » Signal Levels of Loop Antennas for AM Home Transmitters
Jochen Bauer
Jochen Bauer
D  Articles: 126
Schem.: 0
Pict.: 0
17.Nov.12 10:06
Count of Thanks: 28
Reply  |  You aren't logged in. (Guest)   1

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