G8C15 : What does an FT8 signal report of +3 mean?
A
The signal is 3 times the noise level of an equivalent SSB signal
B
The signal is S3 (weak signals)
C
The signal-to-noise ratio is equivalent to +3dB in a 2.5 kHz bandwidth
D
The signal is 3 dB over S9
Correct Answer: The signal-to-noise ratio is equivalent to +3dB in a 2.5 kHz bandwidth