title: An interlaboratory comparison programme on radio frequency electromagnetic field measurements: the second round of the scheme.
abstract: The second round of an interlaboratory comparison scheme on radio frequency electromagnetic field measurements has been conducted in order to evaluate the overall performance of laboratories that perform measurements in the vicinity of mobile phone base stations and broadcast antenna facilities. The participants recorded the electric field strength produced by two high frequency signal generators inside an anechoic chamber in three measurement scenarios with the antennas transmitting each time different signals at the FM, VHF, UHF and GSM frequency bands. In each measurement scenario, the participants also used their measurements in order to calculate the relative exposure ratios. The results were evaluated in each test level calculating performance statistics (z-scores and En numbers). Subsequently, possible sources of errors for each participating laboratory were discussed, and the overall evaluation of their performances was determined by using an aggregated performance statistic. A comparison between the two rounds proves the necessity of the scheme.
authors.affiliation: High Voltage Laboratory, School of Electrical and Computer Engineering, National Technical University of Athens, 9 Iroon Politechniou Street, Zografou Campus, Athens GR 15780, Greece.
authors.forename: E P
authors.initials: EP
authors.lastname: Nicolopoulou
authors.affiliation: High Voltage Laboratory, School of Electrical and Computer Engineering, National Technical University of Athens, 9 Iroon Politechniou Street, Zografou Campus, Athens GR 15780, Greece.
authors.forename: I N
authors.initials: IN
authors.lastname: Ztoupis
authors.affiliation: Non Ionizing Radiation Office, Greek Atomic Energy Commission, Patriarchou Grigoriou and Neapoleos Street, Agia Paraskevi, Athens GR 15310, Greece.
authors.forename: E
authors.initials: E
authors.lastname: Karabetsos
authors.affiliation: High Voltage Laboratory, School of Electrical and Computer Engineering, National Technical University of Athens, 9 Iroon Politechniou Street, Zografou Campus, Athens GR 15780, Greece igonos@cs.ntua.gr.
authors.forename: I F
authors.initials: IF
authors.lastname: Gonos
authors.affiliation: High Voltage Laboratory, School of Electrical and Computer Engineering, National Technical University of Athens, 9 Iroon Politechniou Street, Zografou Campus, Athens GR 15780, Greece.
authors.forename: I A
authors.initials: IA
authors.lastname: Stathopulos
mesh_terms: D040421:Cell Phone; D004574:Electromagnetic Fields; D006801:Humans; D007753:Laboratories / Q000592:standards*; D000069079:Radiation Exposure / Q000032:analysis*; D011834:Radiation Monitoring / Q000379:methods*; D011846:Radio Waves