摘要
In a recent article the authors described a possible process of generating electromagnetic waves in the range of 1-12 Hz caused by diamagnetic currents originated by heat in ionosphere by high frequency waves （HF）. The origin of the HF waves that reach the ionosphere can be sent from the Earth＇s surface （HAARP- High Frequency Active Auroral Research Program） or even solar. Through a SpectranNF-5035 detector, developed by German Aaronia with high sensitivity （1 μV） in a range of 1-12 Hz and low sampling time （5 ms）, it was possible to measure these waves. During the months of July and August of 2016, very dry and away from electrical discharges in the region of S~ Jos~ dos Campos, SP, Brazil were made several series of measurements to detect these waves. The positive results of these experimental observations as well as discussions and suggestions are presented in this paper.
