Stanford Research Systems SR780, Operating Manual And Programming Reference

Page: 20 / 497

1-4 Getting Started
SR780 Network Signal Analyzer
Front Panel Quick Start
There are two types of front panel keys which are referenced in this section. Hardkeys are
those keys with labels printed on them. Their function is determined by the label and
does not change. Hardkeys are referenced by brackets like this - [Hardkey]. Softkeys are
the ten gray keys along the right edge of the screen. Their function is labeled by a menu
box displayed on the screen next to the key. Softkey functions change depending upon
the menu and instrument configuration. Softkeys are referenced as the <Softkey>.
[Hardkeys]
The keypad consists of four groups of hardkeys (keys with printed labels).
The ENTRY keys are used to enter numeric parameters which have been highlighted by a
softkey. The MENU keys select a menu of softkeys. Pressing a menu key will change the
menu boxes which are displayed next to the softkeys. Each menu presents a group of
similar or related parameters and functions. The CONTROL keys start and stop data
acquisition, toggle the active display and link parameters and functions. These keys are
not in a menu since they are used frequently and within any menu. The FUNCTION keys
perform common functions such as Auto Scale and Auto Range. These keys can be
accessed at any time.
<Softkeys>
The SR780 has a menu driven user interface. The Menu keys each display a menu of
softkeys. The softkeys are at the right of the video display and have different functions
depending upon the displayed menu.
There are three types of softkeys - buttons, lists and numeric values. A button performs a
function, such as <Full Span>. A list presents a list of choices or options in the entry field
(at the top of the screen). Use the knob to make a selection and press [Enter].
<Measurement> is an example of a list. A numeric value presents the current value in the
entry field and awaits numeric entry. Enter a new value with the entry keys and press
[Enter]. <Start Freq> is an example of a numeric value.
Knob
The knob normally moves the markers within the displays. If a parameter has been
highlighted by its softkey, the knob adjusts the parameter. List parameters are most easily
modified with the knob. Numeric parameters may also be adjusted with the knob.
Knob list selections are referenced in parenthesis like (Hanning).
Help
Enter the on screen help system by pressing [Help/Local]. Help on any hardkey or
softkey is available simply by pressing the key. Press [1] for the Help Index. Press [0] to
exit the help system and return to normal operation.