Agilent Technologies 4294A, Operating Manual

Page: 54 / 469

46 Chapter 3
Front/Rear Panel and LCD Display
Front Panel
3. STIMULUS Block
This block provides keys for configuring the test signal parameters.
4. ENTRY Block
Provides keys for entering numeric values and text strings. To configure a parameter, first
press the hardkey or softkey associated with the parameter to put the instrument into entry
mode, in which it can accept your entry with the name and current value of the parameter
shown in the upper-left area of the LCD display, and then use these keys to enter the
desired value.
[Bw/Avg]
key Provides access to a softkey menu that lets you configure
the bandwidth and averaging settings.
[Cal]
key Provides access to a softkey menu that lets you set up the
calibration feature.
[Sweep]
key Provides access to a softkey menu that lets you configure
the sweep settings for the test signals.
[Source]
key Provides access to a softkey menu that lets you configure
the frequency (CW frequency), test signal level, and dc bias
conditions. When you are setting a sweep parameter, you
can use the
[Start]
,
[Stop]
,
[Center]
, and
[Span]
keys to set
the sweep range.
[Trigger]
key Provides access to a softkey menu that lets you set up the
trigger system.
[Start]
key Lets you specify the value at which to start the sweep.
[Stop]
key Lets you specify the value at which to stop (finish) the
sweep.
[Center]
key Lets you specify the sweep center value.
[Span]
key Lets you specify the sweep span value.
m m m m
(rotary knob) You can adjust the current setting by turning this knob. This
method immediately updates the parameter value without
requiring you to press a unit key. When working with a
particular configuration item, you can also use the rotary
knob to move the cursor horizontally.
[ ­ ]
and
[ ¯ ]
keys
(step keys)
The step keys allow you to increment or decrement the
current setting. This method immediately updates the
parameter value without requiring you to press a unit key.
[Entry Off]
key This key switches the instrument from entry mode to
normal operation mode with the name and current setting
of the parameter no longer shown in the upper-left area of
the LCD display.