4-6 CHANNELS KEY-GROUP The individual keys within the Channels key-group are described be-
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-
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-
play mode, only the active channel will be displayed. Full menu de-
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