12
Principles of Editing
Each screen called up by pressing a soft-key on the top level MENU display shows parameter
value(s) and/or a list of choices. Choices are made using the soft
−
key associated with the screen
item to be selected. Parameter values can be edited by using the ROTARY CONTROL in
combination with the left and right arrowed CURSOR keys, or by direct numeric keyboard entry;
The examples which follow assume factory default settings.
A diamond beside a screen item indicates that it is selectable; hollow diamonds identify
deselected items and filled diamonds denote selected items. For example, press the
MODE
soft-key on the main menu to get the screen shown below:
MODE
more…
◊
♦
continuous
◊
gated
setup…
◊
◊
sweep
setup…
◊
The filled diamond indicates that the selected mode is
continuous
.
Gated
or
sweep
modes are selected by pressing the associated soft
−
key which will make the diamond beside that
item filled and the diamond beside
continuous
hollow. This screen also illustrates how an
ellipsis (three dots following the screen text) indicates that a further screen follows when that item
is selected. In the case of the MODE screen illustrated, pressing the
setup
...
soft
−
key on the
bottom line brings up the
SWEEP SETUP
menu; note that selecting this item does not change
the
continuous
mode selection.
Some screen items are marked with a double
−
headed arrow (a split diamond) when selected to
indicate that the item’s setting can be changed by further presses of the soft
−
key, by pressing
either cursor key or by using the rotary control. For example, pressing the AUX OUT soft-key on
the main menu brings up the screen shown below.
AUX OUT
output: on
◊
mode: auto
◊
srce: waveform sync
Repeated presses of the
output
soft-key will toggle the output between
on
and
off
.
Similarly when
srce
(source) is selected, repeated presses of the
srce
soft-key will step
through all possible selections of the AUX OUT source (
waveform sync, trigger,
and
sweep sync
). The rotary control can also be used to step through the selections.
In screens where a parameter with a numeric value is displayed the cursor keys move the edit
cursor (a flashing underline) through the numeric field and the rotary 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
FREQUENCY
set to
1.00000 MHz
rotating the control will change
the frequency in 1kHz steps. Turning the control quickly will step numeric values in multiple
increments.
The display will auto-range up or down as the frequency is changed but the increment size and
displayed units are maintained. In the example above (
FREQUENCY
set to
1.00000 MHz
) ,
the lowest frequency that can be set by rotating the control is 1kHz, shown as
0.00100 MHz
.
The displayed units can be changed at any time by pressing the appropriate key, e.g. pressing
kHz or Hz will change the display for the above example to
1.00000 kHz
or
1000.00 Hz
respectively. To reduce the frequency further using the rotary control it is necessary to move the
cursor to set a smaller increment size.
