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All Pools >> Amateur Extra >> E7F
E7F01 : What is meant by direct digital conversion as applied to software defined radios?
- Software is converted from source code to object code during operation of the receiver
- Incoming RF is converted to a control voltage for a voltage controlled oscillator
- Incoming RF is digitized by an analog-to-digital converter without being mixed with a local oscillator signal
- A switching mixer is used to generate I and Q signals directly from the RF input
Correct Answer: Incoming RF is digitized by an analog-to-digital converter without being mixed with a local oscillator signal