Radiation from a portable terminal

The oldest approach to the exposure of an operator of a portable terminal was based upon the HF EM energy absorption in his/her head. The conducting current was firstly mentioned by the author in 1994 in Sendai. Then, in 2000, the presence of LF fields around a terminal was discovered and presented (Trzaska, H., Proc. Asia-Pacific Conf. on Environmental Electromagnetics, CEEM´2000, p.72-5, 2000). The latest investigations include studies of envelope detection in a living body and the presence of LF potentials in the body. Macroscopic detection has still not been confirmed, but detection on a microscopic level was discovered and a proposal for the electrotherapy at a distance (teleelectrotherapy) was presented.