JDS Uniphase CellAdvisor JD780A Series, Руководство пользователя

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JD780A Series Analyzers
Using LTE - FDD Signal Analyzer
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2.
Toggle the Marker View soft key between On and Off to display or dismiss the marker on the
chart.
3.
To select the resource block number, complete the following steps:
a. Press the RB Number soft key.
b. Enter the resource block number to select by using the numeric keys. You can also use the
rotary knob to move the marker side by side.
c. Press the Enter soft key.
4.
To select the subframe block number, complete the following steps:
a. Press the Subframe No soft key.
b. Enter the subframe number to select by using the numeric keys. You can also use the
rotary knob to move the marker up and down.
c. Press the Enter soft key.
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)
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)
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