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JD780A Series Analyzers
Setting limit
Procedure
1.
Press the LIMIT hot key.
2.
Press the Multi-ACP soft key.
3.
Toggle the Test Limits soft key between On and Off to enable or disable the Pass/Fail indication.
4.
Optional. Go to SAVE/LOAD > Save, and then select Limit to save the limit settings.
See "Using save" on page 31 for more information.
Measurement example
Figure 15
Multi-ACP measurement with spectrum analyzer
Spurious emissions
The Spurious Emissions measurement is to identify or determine the power level of in-band or out-of-
band spurious emissions within the necessary channel bandwidth and modulated signal. The JD780A
series indicates either Pass or Fail based on the specified limit of the signal.
Setting measure setup
After configuring test parameters as described in the "Configuring test parameters" on page 59, you
can set the measure setup to continue your measurement. The measurement settings can be saved
and recalled as a file. You can also use JDViewer, PC application software to configure a measure
setup, save as a file, and load the file on to the instrument.
Procedure
1.
Press the MEASURE SETUP hot key.
2.
To set up the range table and parameters, press the Range Table soft key and then complete
the following steps:
a.
Press the Range soft key, and then select the range number between 1 and 20 to add
as a new or change the existing settings.
78
Using Spectrum Analyzer
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