DEVICE FOR INDICATION OF ELECTROMAGNETIC RADIATION IN WIDE FREQUENCY BAND Russian patent published in 2000 - IPC

FIELD: radio engineering. SUBSTANCE: device has serial circuit of input wide- band device, threshold unit, which is designed using comparator with controlled input signal sensitivity, output unit, which is designed as programmable microcontroller, which provides temporal selection of signals within range of 0.1-2 s, and generation of sound signals, as well as sound and/or illumination indication. Device may be used for detection of possible unauthorized access to cellular hand set by means of its triggering from base or device, which substitutes cellular communication network base equipment. Device may be also used for detection of harmful radiation, for example, from microwave oven. EFFECT: simplified design, decreased size. 1 dwg