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Chapter 5, FRONT PANEL OPERATION
5.5.03 Dual Reference Channel Menu
5-66
being measured share a common signal path and hence controls affecting the
signal channel, such as signal source, AC Gain and the line filter controls, apply
to both reference frequencies. Although the full-scale sensitivity setting can be
independently set for both references, the maximum AC Gain that is possible is
defined by the least sensitive setting of the two.
In dual reference mode, the reference channel is controlled by the Dual Reference
Channel menu, which differs from the Reference Channel menu used in the other
modes. In addition, controls are needed for the corresponding output channels, and
so the Output Filters and Output Offset sub-menus also change. The relationship of
all these menus to Main Menu 1 is shown in figure 5-50. Note that as with the main
menu structure, shown in figure 5-1, it is possible to return to the Main Display from
any menu by pressing the Previous Menu key, but this has been omitted from figure
5-50 for the sake of clarity.
Figure 5-50, Dual Reference Mode Menu Structure
In dual reference mode, pressing a key adjacent to the Reference Channel item on
Main Menu 1 accesses the Dual Reference Channel Menu 1, shown in figure 5-51.
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