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G8C07
Which of the following narrow-band digital modes can receive signals with very low signal-to-noise ratios?
Pick an answer to check it.
Answer: B. FT8
FT8 is a narrow-band weak-signal mode that can decode signals well below the noise level, around -20 dB SNR. That makes it popular for weak-signal contacts.
Tip: FT8 digs signals out of the noise.