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Present international standards for maximum levels of unintentional radiated emission from electronic devices are developed to protect analog communication services. In this paper, we propose a set of measurement bandwidths and electric field strength levels that could be used as radiated emission limits for future radiated emission standards, based on the RMS detector, in order to protect modern digital communication services. The emission limits determined fall below the present levels for commercial electronics but above the present limits for military-specified electronics. The results in this paper give a useful picture of the order of the size of radiated electric field limits to protect modern digital communication systems/services.