Operation and Features 2
Keysight U8903B User’s Guide 59
5 Numeric sign key
Press to specify a positive or negative value. For a negative value, press to enter the
negative sign before a numeric value.
In DTMF single mode, press to generate the ‘#’ DTMF tone.
6 Shift key
Press prior to pressing a shifted function key. The shifted functions are printed in Blue on top of the
front panel keys. Refer to “GRAPH Panel” on page 67 and “SYSTEM Panel” on page 77 for more information.
7 Escape key
Press to cancel a selected action.
8 Back space key
Press to delete the character to the left of the cursor.
Table 2-1 Navigation and CHANNEL/DATA panels description (continued)
Item Description
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