Radiowave emission

Low-frequency electromagnetic waves (RE—for radiowave emission) were detected with coil antennas placed a few mm from the sample. Such an antenna couples to a changing B field. It should be emphasized that this arrangement detects the near-field electromagnetic emission because of the close proximity of the coils to the source. A simultaneous burst of visible photons coincident with the observed RE burst reinforces the interpretation that these signals are caused by microdischarges. 

E. E. Donaldson, X. A. Shen, and J. T. Dickinson, Photon and radiowave emission from peeling pressure sensitive adhesives in air. Proceedings of the 30th National SAMPE Symposium (1985). 

Electro-magnetic emission in the radiowave range is for long period of time used for water basins diagnostics. 

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