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Chapter 9
Using LTE-TDD Signal Analyzer
JD700B Series User’s Guide
283
Figure 162 OTA connection
JD785B/JD745B
JD788B/JD748B
CAUTION
If the input signal level to be measured is less than 0 dBm, set 0 dB attenuation or turn on
the preamp to have better dynamic range for the OTA testing.
Selecting measurement mode
Procedure
1
Press the
MODE
hard key.
2
Press the
Signal Analyzer
soft key.
3
Press the
LTE - TDD
soft key. The
Spectrum
mode is set by default.
4
Press the
MEASURE
hot key, and then select the measurement mode option from the following
choices:
Spectrum
RF Analysis > Channel Power
,
Occupied BW
,
Spectrum Emission Mask
,
ACLR
,
Multi-ACLR
, or
Spurious Emissions
Power vs Time > Power vs Time (Slot)
or
Power vs Time (Frame)
Modulation Analysis > Constellation
,
Data Channel
,
Control Channel
,
Subframe
,
Time Alignement Error
, or
Data Allocation Map
Auto Measure > Conformance Test
,
Maintenance Test
,
Signal Perfomance
,
or
DAS Test
Power Statistics CCDF
More (1/2) > Carrier Aggregation
More (1/2) > OTA > Channel Scanner
,
ID Scanner
,
Multipath Profile
,
Control Channel
,
Datagram
, or
Route Map
More (1/2) > RAN Performance Indicator
NOTE
The
Carrier Aggregation
soft key is activated if the license for the option 031 LTE-
Advanced TDD is installed and so does the
RAN Performance Indicator
for the option
015 LTE-TDD RAN Performance Indicator.