E4C08:An SDR receiver is overloaded when input signals exceed what level?
Direct answer summary (2024-2028 NCVEC pool)
The official correct answer for E4C08 is The reference voltage of the analog-to-digital converter.
The key fact is The reference voltage of the analog-to-digital converter. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.