Amateur Extra › E4 Amateur Practices › E4C08
E4C08
An SDR receiver is overloaded when input signals exceed what level?
Pick an answer to check it.
Answer: D. The reference voltage of the analog-to-digital converter
An SDR's analog-to-digital converter cannot represent voltages above its reference voltage. Signals that exceed it clip and overload the receiver.
Tip: Above ADC reference voltage = overload.