JDS Uniphase CellAdvisor JD780A Series, User Manual

Page: 208 / 592

JD780A Series Analyzers
208
Using LTE - FDD Signal Analyzer
Measurement example
Figure 86 ACLR measurement with LTE - FDD 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 211 for more
information.
Multi-ACLR
The Multi-ACLR measurement is used to perform multi-channel ACLR measurements with as many
channels as possible. It helps you to measure ACLR in multi-channel transmitting Base Station
environment.
Setting measure setup
After configuring test parameters as described in the
“Configuring test parameters” on page 197, you
can continue your measurement.
Procedure
1.
Press the MEASURE SETUP hot key.
2.
To set the nominal channel bandwidth to be measured, complete the following steps:
a. Press the Bandwidth soft key.
b. Select the bandwidth option: 1.4 MHz , 3 MHz , 5 MHz , 10 MHz , 15 MHz , or 20 MHz .
3.
To set the frequency, do one of the following:
–
To set the center frequency, complete the following steps:
a. Toggle the Unit soft key and select Freq .
b. Press the Lowest Frequency soft key to set the starting center frequency.
c. Enter a value by using the numeric keys. You can also use the rotary knob.
d. Select the unit: GHz , MHz , kHz , or Hz .
e. Press the Highest Frequency soft key to set the stopping center frequency.