Chapter 9
Using LTE-TDD Signal Analyzer
JD700B Series User’s Guide
317
Setting limit for modulation tests
Procedure
1
Press the
LIMIT
hot key.
2
Press the
Modulation Test Limits
soft key to set the limits.
3
Select the test item(s) and set the limit(s) depending on your selected measurement mode:
To set the limit for
Select
Set
Frequency error
Frequency Error
High Limit, Low Limit
PDSCH error vector
magnitude if MBMS is off
EVM > PDSCH EVM
High Limit (QPSK)
High Limit (16 QAM)
High Limit (64 QAM)
High Limit (256 QAM)*
PMCH error vector magnitude
if MBMS is on and a PMCH is
detected
EVM > PMCH EVM
High Limit (QPSK)
High Limit (16 QAM)
High Limit (64 QAM)
High Limit (256 QAM)*
RMS for data error vector
magnitude
EVM > Data EVM RMS
High Limit
Peak for data error vector
magnitude
EVM> Data EVM Peak
High Limit
RS error vector magnitude
EVM > RS EVM
High Limit
P-SS error vector magnitude
EVM > P-SS EVM
High Limit
S-SS error vector magnitude
EVM > S-SS EVM
High Limit
Downlink RS power
Power > DL RS Power
High Limit, Low Limit
P-SS power
Power > P-SS Power
High Limit, Low Limit
S-SS power
Power > S-SS Power
High Limit, Low Limit
PBCH power
Power > PBCH Power
High Limit, Low Limit
Subframe power
Power > Subframe Power
High Limit, Low Limit
OFDM symbol power
Power > OFDM Symbol Power
High Limit, Low Limit
Time alignment error for
MIMO
Time Alignment Error > MIMO
High Limit
Time alignment error for
aggregation of component
carriers (intra-band
contiguous, intra-band non-
contiguous, and inter-band)
Time Alignment Error > Carrier
Aggregation
Intra Cont
Intra Non-cont
Inter Band
Time error
Time Error
High Limit, Low Limit
I-Q origin offset
IQ Origin Offset
High Limit
4
Optional
. You can enable alarm sound that goes off if the measurement falls outside of the limit.
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 35 for more information.
