Agilent Technologies N9340A Betriebsanweisung Seite 112

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5Key Reference
106 N9340A User’s Guide
Trace
Accesses the trace softkeys to store and manipulate
trace information. Each trace is made of a series of
data points in which amplitude information is
stored. The analyzer updates the data for any
active trace with each successive sweep.
When selecting Channel Power, OBW, or ACPR in
the MEAS menu, refer to “One- button Power
Measurement" on page 59.
Trace
Selects the trace (1- 4) for current use.
Key access: [TRACE] > {Trace}
Clear Write
Erases any data previously stored trace data and
continuously updates the display during following
sweeps of the analyzer. This function is activated
for trace 1 at power on and a factory preset.
Key access: [TRACE] > {Clear Write}
Max Hold
Maintains the displayed maximum level for each
trace point of the selected trace. A trace point is
updated if a new maximum level is detected in
successive sweeps.
Key access: [TRACE] > {Max Hold}
NOTE
Changing the vertical scale (Amplitude, Scale Type, Log or
Line), or pressing PRESET, or turning averaging on (TRACE,
Average (On)) or switching widows in Zero Span restarts the
held trace.
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