JDS Uniphase CellAdvisor JD780A Series, Руководство пользователя

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JD780A Series Analyzers
Using Mobile WiMAX Signal Analyzer
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f. Press the DL Symbols soft key to set the number of downlink symbols.
g. Enter a value by using the numeric keys, and then press the Enter soft key.
h. Press the UL Symbols soft key to set the number of uplink symbols.
i. Enter a value by using the numeric keys, and then press the Enter soft key.
3.
Optional . To set the delay, complete the following steps:
a. Press the Delay soft key to set the amount of delay in µs.
b. Enter a value by using the numeric keys. You can also use the rotary knob.
c. Press the µs soft key.
NOTE
The Delay setting is used only when there is a time offset in the signals to be measured.
4.
To set the start/stop symbols, complete the following steps:
a. Press the Start Symbol soft key.
b. Enter a value by using the numeric keys, and then press the Enter soft key.
c. Press the Stop Symbol soft key.
d. Enter a value by using the numeric keys, and then press the Enter soft key.
Measurement example
Figure 233 SEM 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.
Spurious emissions
Out-of-band emissions are unwanted emissions immediately outside the channel bandwidth resulting
from the modulation process and non-linearity in the transmitter but excluding spurious emissions. The
Spurious Emissions measurement is to identify and determine the power level of out-of-band spurious