DETAILED OPERATION
4-26
Modulation enable/disable
[SOURCE ON/OFF] switches the current modulation channel on or off. To switch all modulation
on or off press [MOD ON/OFF]; this function is mainly used when more than one modulation
source is enabled. Switching all modulation off causes Mod Disable to appear on the main screen.
Modulation source phase adjustment
The phase difference of the modulation oscillator channel 2 relative to channel 1 can be adjusted
in degrees as follows:
(1) Select the Util 31: Modulation Source Phase menu. This shows the currently selected
phase difference setting (see Fig. 4-23).
B2065UT031
Fig. 4-23 Modulation source phase menu
(2) Select the required control knob sensitivity between Fine (0.1°), Medium (1°) and Coarse
(3°).
(3) Highlight Phase Difference and adjust the phase using the control knob. Adjustment is in
the range −359.9° to +359.9° (fine sensitivity). Note that if you have set the source phase
and subsequently adjusted the source frequency or changed the waveform, the menu Phase
Difference value is blanked. This is because the value is then indeterminate due to the
adjustment or changed waveform.
(4) To establish a reference the displayed phase shift can be reset to 0° by highlighting Reset
and pressing [SELECT].
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