Spurious Emissions - JDS Uniphase CellAdvisor JD780A Series User Manual

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After configuring the test parameters, your measurement result is displayed on the screen as like the
following example, Figure 185.
Figure 185 Multi-ACPR measurement with EV-DO signal analyzer
NOTE
You can use the LIMIT hot key to analyze your measurements with the user-definable
limit and Pass/Fail indication. See "Setting limit for RF tests" on page 385 for more
information.

Spurious emissions

Out-of-band emissions are unwanted emissions immediately outside the channel bandwidth resulting
from the modulation process and non-linearity in the transmitter but excluding spurious emissions. The
Spurious Emissions measurement is to identify and determine the power level of out-of-band spurious
emission within the necessary channel bandwidth and modulated signal measured at the RF port of
the Base Station.
Setting measure setup
Procedure
1.
Press the MEASURE SETUP hot key.
Toggle the Unit soft key and select Channel.
To select the standard channel, press the Channel Std soft key and then select the
band to be measured.
Press the Lowest Channel soft key to set the starting channel.
Enter a value by using the numeric keys. You can also use the rotary knob.
Press the Enter soft key.
Press the Highest Channel soft key to set the stopping channel.
Enter a value by using the numeric keys. You can also use the rotary knob.
Press the Enter soft key.
Using EV-DO Signal Analyzer
JD780A Series Analyzers
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