Key Reference 5
N9342C/43C/44C User’s Guide 137
Trace
Accesses the trace keys to store and manipulate
trace information. Each trace comprises a series of
data points in which amplitude information is
stored. The analyzer updates the data for any
active trace with each successive sweep.
Trace
Key access: [TRACE] > {Trace}
Selects the trace (1- 4) for current use.
Clear Write
Key access: [TRACE] > {Clear Write}
Erases any 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 factory preset.
Max Hold
Key access: [TRACE] > {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.
NOTE
Changing the vertical scale (Amplitude, Scale Type, Log or
Line), or pressing PRESET, or turning averaging on (TRACE,
Average (On)) or switching widow in Zone Span restarts the
held trace.
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