 | Span Press to set the AM audio spectrum span. Use the numeric keypad, the rotary knob, or the arrow keys to set the value. Valid values are 2 kHz, 5 kHz, 10 kHz, 20 kHz, 70 kHz, and 140 kHz. Squelch Power Press to set the squelch power level. Back Press to return to the Measurements menu. |