Measurements for EMI of unintentional radiator above 1GHz

Electromagnetic interference emissions radiated from electronic products above 1 GHz are more concerned by people especially for those from Information Technology Equipment at present time. To serve the EMC testing for product manufacturer, a commerical testing laboratory is sometimes asked and confused by the customer on the differences between CISPR and FCC rules for their products. We make some experiments and try to findout the definite differences from those conditions and make several concluded points to custumers and people for reference and also standard institute for their considerations to the new requirements.