Radio Test Instruments
Subject to Export Control, see Cover Page for details.
7-32
Trace Color
Trace types being displayed on the graph are listed in the upper right corner of the graph
field. The traces are color-coded to identify trace types. Fig. 7-35 shows a screen shot with
a Live, Peak and Captured trace being displayed.
● Live traces are White.
● Peak hold traces are Red.
● Averaged traces are Yellow.
● Captured traces are Green.
[Capture] Soft Key
Pressing [Capture] freezes trace as it appeared when key was pressed. Press [Clear] Soft Key
to clear captured trace and resume display of live trace. This soft key is accessed by pressing
the [Trace] Soft Key.
[Clear] Soft Key
Pressing [Clear] resumes normal sweep operation when a trace has been captured. The [Clear]
Soft Key appears only when the [Capture] Soft Key
is pressed.
[Peak Hold] Soft Key
When [Peak Hold ON] is selected, the maximum value at each frequency point is displayed to
produce the RED Peak Hold trace (refer to Fig. 7-35). This trace is cleared by selecting [Peak
Hold OFF]. Peak Hold must be reset (toggled ON/OFF) when Average readings are Enabled/
Disabled. The white live trace is also displayed and can be averaged depending on the current
setting. This soft key is accessed by pressing the [Trace] Soft Key
.
[Set Reference] Soft Key
When the [Set Reference] Soft Key is pressed, the Test Set stores current trace data which is
used to establish a reference trace when Reference Mode is selected. This soft key is accessed
by pressing the [Trace] Soft Key.
[Mode Normal/Reference] Soft Key
Selects Normal or Reference trace mode of operation for the analyzer trace. When Reference
Mode is selected, the Test Set uses the last stored trace reference (refer to [Set Reference] Soft
Key) to establish a frequency response of the characteristics of the cabling and test setup. This
response is used as a reference for the active trace being displayed on the Spectrum Analyzer
Tile. This soft key is accessed by pressing the [Trace] Soft Key.