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Setting measure setup
Procedure
1
Configure test parameters as described in the "Configuring test parameters" on page 86.
2
Press the MEASURE SETUP hot key.
3
To set the amount of time between each trace measurement:
a
Press the Time Interval soft key.
b
Enter a value by using the numeric keys. You can also use the rotary knob.
c
Press the Sec soft key.
4
To set the time cursor on a specific trace position, complete the following steps:
a
Toggle the Time Cursor soft key and select On.
b
Turn the rotary knob to move the time cursor. You can also enter a value and then press the
Enter soft key.
NOTE
Enabling the time cursor puts the measurement on hold and you can make post-
processing analysis for each measurement over time using the time cursor.
5
To start a new measurement, press the Reset/Restart soft key.
6
Optional. Go to SAVE/LOAD > Save, and then select the save option from the choices available
for your measurement mode. See "Using save" on page 32 for more information.
Measurement example
The spectrogram shows a vertical line on the chart when the marker is enabled on the screen.
Figure 24
Interference measurement in spectrogram
The horizontal line or X-axis of the spectrogram is frequency.
The vertical line or Y-axis is time.
The color identification (Spectrogram) indicates power level of the tracked signal. As the signal
strength increases, the color on the spectrogram changes accordingly.
JD700B Series User's Guide
Chapter 5 Using Interference Analyzer
95
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