Direction Finder Loop
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The DF Loop (direction finder loop) is an offspring of the ordinary loop antenna designed to be portable for use in locating RFI sources. This unit was constructed for and donated to the GVARC to aid in assisting members in detecting and proving the location of offending RF interference. Construction of DF loops is well documented on the web so it was not taken on as Club project. It is hoped the Club will establish a committee trained in interference mitigation and that this DF loop will assist them.
Beginning construction of the loop made with a 1x2” piece of wood. Likely not needed, but contact of the loop with the wood was eliminated with plastic tube sleeves and epoxy glue.
The dongle shown is a RTL2832U from RTL-SDR.com. That website will lead you to sales points, software sources and instructions. Many other units are available as well as a typical portable radio equipped with an S meter. Ideally a portable spectrum analyzer could be used.