A measurement system for the evaluation of environmental electromagnetic field

The paper presents a measurement system for the evaluation of electromagnetic (EM) field intensity in large geographical areas. It is based on the combined use of two test stations. The first one is equipped with global positioning system and broadband EM field sensors for preliminary data acquisition. The second test station is based on an analog spectrum analyzer for thorough investigation at locations where large intensity fields are found. The whole system provides geographical maps of the field strength. Control of the measurement subsystems through the Internet network for monitoring purposes is also achieved. Real life experimental data that show the system characteristics are discussed.