The paper deals with the immunity for radiated emissions and compliance with international standards for electromagnetic compatibility (EMC) measurements. EMC standards for GTEM Cell, GTEM Cell construction, GTEM model, generation and distribution of electric and magnetic field inside the GTEM Cell, equipment under test (EUT), radiated emission measurement scheme, are presented. Mobile phone immunity test against for radiated emissions in the GTEM 250 Cell was developed. The test procedure was performed with the specialized software "EMC 32" and "GTEM3 IMMUNITY." The test results revealed a good agreement with the existing standards, and validated the theoretical considerations concerning the test developed in a GTEM Cell.