Upper Sideband. One of the two forms of single-sideband voice communication.
USB is conventionally used for SSB voice on several higher-frequency HF bands and for SSB operation on VHF and UHF.
Upper Sideband. One of the two forms of single-sideband voice communication.
USB is conventionally used for SSB voice on several higher-frequency HF bands and for SSB operation on VHF and UHF.