What does usb mean in Amateur Radio?
This page is about the meanings of the acronym/abbreviation/shorthand usb in the Academic & Science field in general and in the Amateur Radio terminology in particular.
upper sideband, a type or category of radio signal, esp amateur radio parlance:
usb, the upper sideband of a modulated AM radio signal; opposite sideband relative to 'lsb'/lower sideband radio signal, see amateur radio:
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