Single sideband, upper. Suppressed carrier and one sideband — spectrum-efficient voice used on HF.
A narrow, ragged band with no carrier line, only on one side of the tuned point.
Ham HF above 10 MHz, marine/aeronautical HF, military voice.
SPECTRA synthesises SSB (Upper) in your browser, so you can watch its waterfall signature and hear it demodulated without any radio hardware.
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