Principles Of Editing - Metrix GX1010 Notice De Fonctionnement

4.1.5. Principles of Editing

FIELD and DIGIT keys are used, together with the rotary control, to edit parameters shown
on the current menu. The Main menu shows all the basic generator parameters and is the
one displayed unless editing of a special function has been selected. These edit menus are
accessed by pressing the blue EDIT key, followed by the appropriate MODE key or a
numeric key which has a secondary function printed in blue.
FIELD keys move the flashing edit cursor forward or backwards from one editable field to
the next; all the digits of a numeric parameter value are treated as a single field. When the
parameters of a particular function occupy two or more pages of the display, e.g. the
sweep mode parameters, the further pages are indicated by MORE>>> shown in the
display and the FIELD keys are also used to step between the end of one page and the
start of another, and vice-versa. The attributes of the flashing edit cursor can be changed
by the user if desired, see SYStem Menu section.
DIGIT keys operate in more than one mode. When a numeric parameter value field is
selected by the FIELD keys, DIGIT keys step the edit cursor forward or backwards through
the digits of the field. When the edit cursor is positioned in a parameter name (e.g. FREQ)
pressing either digit key will step the parameter through each of the alternative forms in
which a value may be entered (e.g. FREQ is changed to PERiod); the parameter numeric
value and units change accordingly. Note that where there is no alternative form for the
parameter (e.g. SYMMETRY) the edit cursor cannot be stepped into that field. When the
edit cursor is positioned in a parameter selection field (e.g. SOURCE = on the TRIG menu),
the DIGIT keys step through all possible choices for that parameter (e.g. SOURCE =
TGEN, SOURCE = EXT, etc.) Lastly, when the edit cursor is positioned in the units field of
a parameter value, the DIGIT keys increment or decrement the numeric value of the
parameter by a factor of 10 each press; the units change each time the display autoranges.
The ROTARY CONTROL works as follows. With the cursor in any field other than a
numeric value field turning the control acts in exactly the same way as pressing the DIGIT
keys. With the edit cursor positioned anywhere in a parameter numeric field, turning the
control will increment or decrement the value; the step size is determined by the position of
the edit cursor within the numeric field.
Thus for FREQ = 1.00000 MHz rotating the control will change the frequency in 1kHz
steps. The display will auto-range up or down as the frequency is changed, provided that
autoranging permits the increment size to be maintained; this will in turn determine the
lowest or highest setting that can be achieved by turning the control. In the example above,
the lowest frequency that can be set by rotating the control is 1 kHz, shown on the display
as
This is the limit because to show a lower frequency the display would need to autorange
below 1kHz to
in which the most significant digit represents 100Hz, i.e. the 1kHz increment would be lost.
If, however, the starting setting had been
i.e. a 100 Hz increment, the display would have autoranged at 1kHz to
and could then be decremented further right down to
without losing the 100 Hz increment.
Turning the control quickly will step numeric values in multiple increments.
GX1010
FREQ = 1.000000 kHz
FREQ = xxx.xxx Hz
FREQ = 1.000000 MHz
FREQ = 900.0000 Hz
FREQ = 000.0000 Hz
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