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JD780A Series Analyzers
466
Using Mobile WiMAX Signal Analyzer
Measurement example
Figure 232
Occupied bandwidth 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 469 for more
information.
Spectrum emission mask (SEM)
The Spectrum Emission Mask (SEM) measurement compares the total power level within the defined
carrier bandwidth and the given offset channels according to the standards.
Setting measure setup
After configuring test parameters as described in the
“Configuring test parameters” on page 456, 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:
–
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
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
Summary of Contents for CellAdvisor JD780A Series
Page 52: ...JD780A Series Analyzers 52 Getting Started Figure 6 Example of Web remote on Chrome...
Page 254: ...JD780A Series Analyzers 254 Using LTE FDD Signal Analyzer 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 323: ...JD780A Series Analyzers Using LTE TDD Signal Analyzer 323 3 RS SINR 4 S SS RSSI 5 P SS Power...
Page 390: ...JD780A Series Analyzers 390 Using EV DO Signal Analyzer 3 Pilot 4 MAC 64 5 MAC 128...
Page 525: ......
Page 590: ...JD780A Series Analyzers 590 Appendix Figure 306 Append keywords window...