When using a transceiver that displays the carrier frequency of phone signals, which of the following displayed frequencies represents the lowest frequency at which a properly adjusted LSB emission will be totally within the band?

In Lower Sideband (LSB) mode, the transmitted radio frequency energy extends downwards from the displayed carrier frequency. A typical amateur single sideband (SSB) voice signal occupies about 3 kHz of bandwidth. To ensure your transmission does not cross the boundary into an unauthorized frequency band or segment, the entire signal must remain within the allocated frequencies. Setting the carrier frequency exactly 3 kHz above the lower band edge ensures that the bottom of your 3 kHz wide signal aligns with the lower edge, keeping you entirely within the legal limits. Choosing the exact lower band edge or only 1 kHz above it would result in your signal extending out of the authorized band, which is a violation of FCC rules.