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4-6 CHANNELS KEY-GROUP The individual keys within the Channels key-group are described be
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low:
Ch 1-4 Keys: These keys (below) define the active channel. One (and
only one) must always be active as indicated by the associated LED.
Pressing a button makes the indicated channel active. If channel indi
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cated by the key is already active, pressing the key has no effect.
The active channel will be the channel acted upon by the S Params,
Graph Type, Ref Plane, Trace Memory, Set Scale, Auto Scale,
Markers/Limits and Domain keys. When in the single channel display
mode, the active channel will be the one displayed.
Channel Menu: Pressing this key calls menu CM (below). Here, you
select the number of channels to be displayed. When in the single dis
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play mode, only the active channel will be displayed. Full menu de
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scription can be found in the alphabetical listing (Appendix A) under
the menu’s call letters (CM).
CHANNELS KEY-GROUP FRONT PANEL OPERATION
4-24 37xxxE OM
Figure 4-9. Channel Key-Group Menu