E7F01:What is meant by “direct sampling” in software defined radios?
Direct answer summary (2024-2028 NCVEC pool)
The official correct answer for E7F01 is Incoming RF is digitized by an analog-to-digital converter without being mixed with a local oscillator signal.
The key fact is Incoming RF is digitized by an analog-to-digital converter without being mixed with a local oscillator signal. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.