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G8C15
What does an FT8 signal report of +3 mean?
Pick an answer to check it.
Answer: C. The signal-to-noise ratio is equivalent to +3dB in a 2.5 kHz bandwidth
FT8 reports signal-to-noise ratio as if measured in a 2.5 kHz bandwidth. A report of +3 means the SNR is equivalent to +3 dB in that 2.5 kHz bandwidth, not an S-meter reading.
Tip: FT8 report = SNR in 2.5 kHz.