Amateur Extra › E8 Signals and Emissions › E8D09
E8D09
What is considered an acceptable maximum IMD level for an idling PSK signal?
Pick an answer to check it.
Answer: D. -30 dB
For an idling PSK signal, IMD should be at least 30 dB below the signal, written as -30 dB. Positive values would mean distortion is stronger than the signal.
Tip: Clean PSK: IMD -30 dB or better.