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JD780A Series Analyzers
Using LTE - FDD Signal Analyzer
237
Toggle the
Beep
soft key between
On
and
Off
to enable or disable the beep sound.
5.
Optional
. Go to
SAVE/LOAD
> Save
, and then select
Limit
to save the limit settings.
See
“Using save” on page 31 for more information.
Setting measure setup
After configuring test parameters as described in the
“Configuring test parameters” on page 197, you
can 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.
Toggle the
Cell ID
soft key and select
Auto
or
Manual
as desired:
–
Auto
: to let the instrument detect the Cell ID for the LTE signal automatically.
–
Manual
: to set a specific Cell ID for the LTE signal manually in order to speed up the
synchronization with a BTS.
3.
Press the
MIMO
soft key, and then select the antenna number option:
2x2
or
4x4
.
This MIMO (Multiple Input Multiple Output) setting is activated only if the option 030 LTE-
Advanced FDD is installed with a license number. If not, the instrument sets this option to 2x2 by
default. A 2x1 or 4x1 RF combiner is also required to able to test on MIMO channels.
4.
Press the
Antenna Port
soft key, and then select the option:
Auto
,
0
,
1
,
2
, or
3
.
If the option 030 LTE-Advanced FDD is not installed or if the MIMO is set to 2x2, the antenna
ports 2 and 3 are disabled.
5.
Press the
Bandwidth
soft key, and then select the nominal channel bandwidth to be measured,
from the following choices:
–
1.4 MHz
,
3 MHz
,
5 MHz
,
10 MHz
,
15 MHz
, and
20 MHz
6.
Toggle the
RF Profile
soft key between
On
and
Off
to turn on or off the RF profiling such as
channel power and subframe frequency error.
7.
Toggle the
Modulation Profile
soft key between
On
and
Off
to turn on or off the modulation
profiling such as P-SS, S-SS, Data - QPSK, Data
– 16 QAM, and Data – 64 QAM.
8.
Toggle the
MIMO Profile
soft key between
On
and
Off
to turn on or off the MIMO profiling such
as TX1 - RS0, TX2 - RS1, and time alignment error.
9.
Toggle the
External Offset
soft key and select
On
to set the external offset value.
10.
To save your settings and results, go to
SAVE/LOAD
> Save
and then perform functions as you
desire. See
“Using save” on page 31 for more information.
DAS test
The Distributed Antenna System (DAS) testing enables you to check the degradation of performance
in the signal transmission from a radio band to antennas distributed from it. You can save
measurement values at both the radio band and antennas and then compare results with percentage
of changes. You can also save test results in the
.csv
file format for ease of analysis.
Setting measure setup
Procedure
1.
Press the
MEASURE SETUP
hot key.
Содержание CellAdvisor JD780A Series
Страница 52: ...JD780A Series Analyzers 52 Getting Started Figure 6 Example of Web remote on Chrome...
Страница 91: ...JD780A Series Analyzers Using Spectrum Analyzer 91 Figure 23 PIM detection for multiple carriers...
Страница 254: ...JD780A Series Analyzers 254 Using LTE FDD Signal Analyzer 3 RS SINR 4 S SS RSSI 5 P SS Power...
Страница 323: ...JD780A Series Analyzers Using LTE TDD Signal Analyzer 323 3 RS SINR 4 S SS RSSI 5 P SS Power...
Страница 390: ...JD780A Series Analyzers 390 Using EV DO Signal Analyzer 3 Pilot 4 MAC 64 5 MAC 128...
Страница 525: ......
Страница 590: ...JD780A Series Analyzers 590 Appendix Figure 306 Append keywords window...