Kenwood TS-890S Operation Manual - Page 104

.. . . 7 SCOPE FUNCTIONS Audio Scope The TX/RX audio can be displayed on an "audio scope screen" where a spectrum scope and an oscilloscope are displayed as well as on a "multi scope screen" where a reduced display of the bandscope appears at the top together with the "audio scope screen". Displaying the Audio Scope Press and hold [SCP] to display the Audio Scope screen. Pressing and holding [SCP] each time toggles the display between "Audio Scope" and "Bandscope". Audio Scope Screen Left: Spectrum scope Right: Oscilloscope Switching the Audio Scope Display Type 1 Display the Audio Scope screen. 2 Press [SCP]. Pressing [SCP] each time switches the selection in the following sequence. "Audio Scope screen" ↓ "Multi Scope screen" ↓ No scope display (ends scope display) Multi Scope Screen Top: Reduced bandscope display Left: Spectrum scope Right: Oscilloscope Switching the Display Frequency Span of the Spectrum Scope The display frequency span of the spectrum scope can be configured to 3 kHz or 8 kHz. Configure the display frequency span to an appropriate setting according to the filter band setting and frequency to observe. Press F3 [SPAN]. Pressing F3 [SPAN] each time toggles the span between "3 kHz (default)" and "8 kHz". Display when 3 kHz is selected Display when 8 kHz is selected Switching the Oscilloscope Level By switching the vertical level of the oscilloscope, the amplitude of the waveform can be adjusted to a size that is easy to see. Press F6 [LEVEL]. Pressing F6 [LEVEL] each time switches the level. Setting Value 0 dB (default)/ -10 dB/ -20 dB/ -30 dB • Pressing and holding F6 [LEVEL] each time switches the options in the reverse sequence. • The current setting is displayed at the top of the oscilloscope. Switching the Sweep Time Switching the sweep time of the oscilloscope alters the time range of the oscilloscope display. The sweep time can be adjusted according to the status of the signal to be observed. Press F5 [TIME]. Pressing F5 [TIME] each time switches the sweep time. Setting Value 1 ms/ Div/ 3 ms/ Div/ 10 ms/ Div/ 30 ms/ Div/ 100 ms/ Div (default)/ 300 ms/ Div • Pressing and holding F5 [TIME] each time switches the options in the reverse sequence. • The sweep time is displayed at the bottom of the oscilloscope. 3 Press [ESC] to end the display. Switching the Spectrum Scope Attenuator By switching the attenuator for the spectrum scope, the spectrum display can be adjusted to a level that is easy to see. Press F2 [ATT]. Pressing F2 [ATT] each time switches the attenuator. Setting Value Off (default)/ 10 dB/ 20 dB/ 30 dB • Pressing and holding F2 [ATT] each time switches the options in the reverse sequence. • The current setting is displayed at the top of the spectrum scope. Pausing the Audio Scope When the waveform displayed on the Audio Scope screen is paused, the waveform is maintained until it is unpaused. The audio scope can be paused to enable analysis of the waveform without being interrupted whenever the display is refreshed. Press F4 [PAUSE] to pause the waveform display. • When the waveform display is paused, > is displayed and both the spectrum scope on the left and the oscilloscope on the right stop refreshing temporarily. • Pressing F4 [PAUSE] again cancels the paused state. 7-8