Keysight EXG and MXG X-Series Signal Generators User’s Guide 41Basic OperationEntering and Editing Numbers and TextEntering and Editing Numbers and TextEntering Numbers and Moving the CursorEntering Alpha CharactersData entry softkeys appear in variousmenus. If their meaning is not clear incontext, use the help key (described onpage 40) to display an explanation. Use thesoftkey next to the alpha table for help onthe table.Selecting data that accepts alphacharacters, displays one of the menusshown at right.Use the arrow keys or knob to highlight thedesired letter, then press the Selecthardkey (or the softkey next to the alpha table). To correct errors, use Bk Sp or Clear Text.To terminate the entry, press the Enter softkey.A subset of this menu appears for hexadecimal characters. The character menu displays only theletters A through F (use the numeric keypad for other values).Up/down arrow keys increase/decrease a selected (highlighted) numeric value, and move the cursor vertically.To specify a negative value, enter thenegative sign either before or afterBackspace moves the cursor to the left,deleting characters as it goes.Left/right arrow keys move the cursor horizontally.Page up/down keys move tables of data up and down within the display area.Use the number keys and decimal point to enter numeric data.Note: Rotating the knob increases ordecreases a numeric value, changes ahighlighted digit or character, or stepsthrough lists or items in a row.the numeric value (this key is a toggle).For details on each key, see page 40.Use the Select hardkey to choose part of an entry, as when entering alphacharacters. In some menus, the Select key also acts as a terminator, and isequivalent to the Enter softkey.See also “Front Panel Knob Resolution” on page 28.to move the cursorwithin the active valuerather than within thealpha table, turn thealpha table off.Add/edit comments for savedinstrument state files (see page 62).Note: File names are limited to 25 characters.