User`s guide

4 Making Measurements
70 N9340B User’s Guide
offending event or interference. The spectrogram
data may be played back for review on either the
analyzer’s display or on a PC utilizing N9340B PC
Software
Spectrogram Audio Alert
The spectrogram provides the sound audio alert
with the deferent frequency by the different control
parameters. This alert needs two markers to
specify the measure channel. The Band Power of the
channel specified by two markers is measured
without the audio alert. The Alert Limit is set to
specify the lowest band power that makes the
buzzer beep.
Please refer to the procedures below to turn on the
audio alert.
1 Press [Meas] > {Spectrogram} to access into the
spectrogram mode.
2 Press [Marker] > {More} > {Audio Alert} to enable
the audio alert.
NOTE
For the spectrogram, the marker operation is only within
200 frames displayed on screen. And on PC software, the
marker operation is available in whole spectrogram file.
NOTE
The max update rate of spectrogram monitoring function in
N9340B PC software is slower than N9340B. If display mode
is set to “Spectrg&Trace”, the max update rate is 1.5
updates/second. If display mode is set to “trace”, the update
rate is increased to 2 updates/second.