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Chapter 13 Using Mobile WiMAX Signal Analyzer
Measurement example
Figure 221 Channel power measurement with Mobile WiMAX 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 427 for more
information.
Occupied bandwidth
The Occupied Bandwidth measures the spectrum shape of the carrier. It is defined as the bandwidth,
which includes 99% of the transmitted power among total transmitted power.
Setting measure setup
After configuring test parameters as described in the "Configuring test parameters" on page 414, you
can continue your measurement.
Procedure
1
Press the MEASURE SETUP hot key.
2
Press the System Config soft key, and then do the following:
a
Press the Bandwidth soft key, and then select the nominal channel bandwidth to be
measured from the following choices:
–
–
–
b
Toggle the Frame Length soft key and select 5 ms or 10 ms.
c
Press the TTG (RTG) soft key to set the transmit/receive transition gap between the last
sample of the downlink burst and the first sample of the subsequent uplink burst.
d
Enter a value by using the numeric keys, and then press the Enter soft key.
e
Press the CP Ratio soft key, and then select the cyclic prefix ratio option: 1/4, 1/8, 1/16, or
1/32.
f
Press the DL Symbols soft key to set the number of downlink symbols.
422
7 MHz (8/7): Sets the channel bandwidth to 7 MHz with sampling factor 8/7. In
conjunction with nominal channel bandwidth
8.75 MHz (8/7): Sets the channel bandwidth to 8.75 MHz with sampling factor 8/7
10 MHz (28/25): Sets the channel bandwidth to 10 MHz with sampling factor 28/25
JD700B Series User's Guide
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