What frequency range is occupied by a 3 kHz LSB signal when the displayed carrier frequency is set to 7.178 MHz?

Lower Sideband (LSB) means that the transmitted radio frequency information extends below the suppressed carrier frequency. The displayed carrier frequency is 7.178 MHz, and the signal has a bandwidth of 3 kHz, which is equivalent to 0.003 MHz. To find the lowest point of the signal, subtract 0.003 MHz from 7.178 MHz, resulting in 7.175 MHz. The signal spans from this lower limit up to the carrier frequency, making the occupied frequency range 7.175 MHz to 7.178 MHz. Adding the 3 kHz instead of subtracting it would incorrectly give you the Upper Sideband (USB) range.