 | On Off Press to turn On and Off the auto demodulation function. The current state (On or Off) is underlined on the submenu key. Demod Type Press to select the type of desired demodulation: AM, USB, or LSB. The selection toggles through the choices, and the current setting is underlined on the submenu key. Demod Time Press to set the demodulation time. If you use the numeric keypad to enter a value, then the submenu keys change to Time in units of min, s, ms, or µs. Demodulation time denotes the audio playback time. Audio playback and the graph display occur one after the other. For example, if the demodulation time is chosen as 3 seconds, then one complete sweep of graph display occurs followed by 3 seconds of audio playback, followed by one sweep of graph display, followed by 3 seconds of audio playback, and so on. Beat Freq Osc Sets the beat frequency of the oscillator to exactly set the demodulation frequency of USB and LSB signals. Displayed only when USB or LSB is selected as the Demod Type. This can also be used when demodulating CW (Morse code) signals. Volume Press to set the instrument speaker volume for listening to the demodulated signal. Squelch Power Sets the squelch power value. Use this setting to limit noise in the displayed signal. Back Press to return to the Measurements menu. |