How close to the lower edge of a band's phone segment should your displayed carrier frequency be when using 3 kHz wide LSB?
Why With lower sideband, all your transmitted energy sits below the displayed carrier (suppressed carrier) frequency, spreading down about 3 kHz for a typical voice signal. To keep every part of that signal inside the band or segment, the displayed frequency must be at least 3 kHz above the lower edge. Remember that FCC rules hold you responsible for your entire emitted bandwidth, not just the dial reading.
Watch out Setting the dial below the edge, or only 1 kHz above it, puts part or all of the LSB energy outside the authorized segment, which is a violation even though the displayed number looks close to legal.
LSB talks downward: stay 3 kHz up from the bottom edge. USB talks upward: stay 3 kHz down from the top edge.