What frequency range is occupied by a 3 kHz USB signal with the displayed carrier frequency set to 14.347 MHz?

Upper Sideband (USB) indicates that the voice information and resulting radio frequencies extend above the suppressed carrier frequency. The radio's displayed carrier frequency is 14.347 MHz. Since the signal occupies a bandwidth of 3 kHz (or 0.003 MHz), you must add this value to the carrier frequency to find the upper limit of the transmission. Adding 0.003 MHz to 14.347 MHz gives an upper boundary of 14.350 MHz. Therefore, the entire signal occupies the frequency range from 14.347 MHz up to 14.350 MHz.